Add CTF Writer implementation
authorJérémie Galarneau <jeremie.galarneau@efficios.com>
Wed, 16 Oct 2013 18:35:01 +0000 (14:35 -0400)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Thu, 31 Oct 2013 13:48:26 +0000 (09:48 -0400)
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Reviewed-by: Christian Babeux <christian.babeux@efficios.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
19 files changed:
configure.ac
formats/ctf/Makefile.am
formats/ctf/writer/Makefile.am [new file with mode: 0644]
formats/ctf/writer/clock.c [new file with mode: 0644]
formats/ctf/writer/event-fields.c [new file with mode: 0644]
formats/ctf/writer/event-types.c [new file with mode: 0644]
formats/ctf/writer/event.c [new file with mode: 0644]
formats/ctf/writer/functor.c [new file with mode: 0644]
formats/ctf/writer/stream.c [new file with mode: 0644]
formats/ctf/writer/writer.c [new file with mode: 0644]
include/Makefile.am
include/babeltrace/ctf-writer/clock-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/event-fields-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/event-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/event-types-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/functor-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/ref-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/stream-internal.h [new file with mode: 0644]
include/babeltrace/ctf-writer/writer-internal.h [new file with mode: 0644]

index 58a472d1fac2c2976964ccad603cb96aa53faede..6ea5ef3c96fa97c83f7edf73e7bef32540ca3d12 100644 (file)
@@ -115,6 +115,9 @@ AC_SUBST(babeltraceincludedir)
 babeltracectfincludedir="${includedir}/babeltrace/ctf"
 AC_SUBST(babeltracectfincludedir)
 
+babeltracectfwriterincludedir="${includedir}/babeltrace/ctf-writer"
+AC_SUBST(babeltracectfwriterincludedir)
+
 AC_CONFIG_FILES([
        Makefile
        types/Makefile
@@ -127,6 +130,7 @@ AC_CONFIG_FILES([
        formats/ctf-metadata/Makefile
        formats/bt-dummy/Makefile
        formats/ctf/metadata/Makefile
+       formats/ctf/writer/Makefile
        converter/Makefile
        doc/Makefile
        lib/Makefile
index 6dcc1bb3343cb19f8b6e1a3d1d26708e88fd1f22..d79d9ef38030166725f9f80feafdc81dcb21ce76 100644 (file)
@@ -1,6 +1,6 @@
 AM_CFLAGS = $(PACKAGE_CFLAGS) -I$(top_srcdir)/include
 
-SUBDIRS = types metadata .
+SUBDIRS = types metadata writer .
 
 lib_LTLIBRARIES = libbabeltrace-ctf.la
 
@@ -13,10 +13,11 @@ libbabeltrace_ctf_la_SOURCES = \
 
 # Request that the linker keeps all static libraries objects.
 libbabeltrace_ctf_la_LDFLAGS = \
-       -Wl,--no-as-needed \
+       -Wl,--no-as-needed
+
+libbabeltrace_ctf_la_LIBADD = \
+       $(top_builddir)/lib/libbabeltrace.la \
        types/libctf-types.la \
        metadata/libctf-parser.la \
-       metadata/libctf-ast.la
-       
-libbabeltrace_ctf_la_LIBADD = \
-       $(top_builddir)/lib/libbabeltrace.la
+       metadata/libctf-ast.la \
+       writer/libctf-writer.la
diff --git a/formats/ctf/writer/Makefile.am b/formats/ctf/writer/Makefile.am
new file mode 100644 (file)
index 0000000..84ac03d
--- /dev/null
@@ -0,0 +1,22 @@
+AM_CFLAGS = $(PACKAGE_CFLAGS) -I$(top_srcdir)/include
+
+noinst_LTLIBRARIES = libctf-writer.la
+
+libctf_writer_la_SOURCES = \
+       writer.c \
+       clock.c \
+       stream.c \
+       event-types.c \
+       event-fields.c \
+       event.c \
+       functor.c
+
+libctf_writer_la_LIBADD = \
+       $(top_builddir)/lib/libbabeltrace.la
+
+if BABELTRACE_BUILD_WITH_LIBUUID
+libctf_writer_la_LIBADD += -luuid
+endif
+if BABELTRACE_BUILD_WITH_LIBC_UUID
+libctf_writer_la_LIBADD += -lc
+endif
diff --git a/formats/ctf/writer/clock.c b/formats/ctf/writer/clock.c
new file mode 100644 (file)
index 0000000..1146e00
--- /dev/null
@@ -0,0 +1,264 @@
+/*
+ * clock.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/clock.h>
+#include <babeltrace/ctf-writer/clock-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/compiler.h>
+#include <inttypes.h>
+
+static
+void bt_ctf_clock_destroy(struct bt_ctf_ref *ref);
+
+struct bt_ctf_clock *bt_ctf_clock_create(const char *name)
+{
+       struct bt_ctf_clock *clock = NULL;
+
+       if (validate_identifier(name)) {
+               goto error;
+       }
+
+       clock = g_new0(struct bt_ctf_clock, 1);
+       if (!clock) {
+               goto error;
+       }
+
+       clock->name = g_string_new(name);
+       if (!clock->name) {
+               goto error_destroy;
+       }
+
+       clock->description = g_string_new(NULL);
+       if (!clock->description) {
+               goto error_destroy;
+       }
+
+       clock->precision = 1;
+       clock->frequency = 1000000000;
+       uuid_generate(clock->uuid);
+       bt_ctf_ref_init(&clock->ref_count);
+       return clock;
+error_destroy:
+       bt_ctf_clock_destroy(&clock->ref_count);
+error:
+       clock = NULL;
+       return clock;
+}
+
+int bt_ctf_clock_set_description(struct bt_ctf_clock *clock, const char *desc)
+{
+       int ret = 0;
+
+       if (!clock || !desc || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->description = g_string_assign(clock->description, desc);
+       ret = clock->description ? 0 : -1;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_frequency(struct bt_ctf_clock *clock, uint64_t freq)
+{
+       int ret = 0;
+
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->frequency = freq;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_precision(struct bt_ctf_clock *clock, uint64_t precision)
+{
+       int ret = 0;
+
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->precision = precision;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_offset_s(struct bt_ctf_clock *clock, uint64_t offset_s)
+{
+       int ret = 0;
+
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->offset_s = offset_s;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_offset(struct bt_ctf_clock *clock, uint64_t offset)
+{
+       int ret = 0;
+
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->offset = offset;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_is_absolute(struct bt_ctf_clock *clock, int is_absolute)
+{
+       int ret = 0;
+
+       if (!clock || clock->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->absolute = !!is_absolute;
+end:
+       return ret;
+}
+
+int bt_ctf_clock_set_time(struct bt_ctf_clock *clock, uint64_t time)
+{
+       int ret = 0;
+
+       /* Timestamps are strictly monotonic */
+       if (!clock || time < clock->time) {
+               ret = -1;
+               goto end;
+       }
+
+       clock->time = time;
+end:
+       return ret;
+}
+
+void bt_ctf_clock_get(struct bt_ctf_clock *clock)
+{
+       if (!clock) {
+               return;
+       }
+
+       bt_ctf_ref_get(&clock->ref_count);
+}
+
+void bt_ctf_clock_put(struct bt_ctf_clock *clock)
+{
+       if (!clock) {
+               return;
+       }
+
+       bt_ctf_ref_put(&clock->ref_count, bt_ctf_clock_destroy);
+}
+
+BT_HIDDEN
+void bt_ctf_clock_freeze(struct bt_ctf_clock *clock)
+{
+       if (!clock) {
+               return;
+       }
+
+       clock->frozen = 1;
+}
+
+BT_HIDDEN
+void bt_ctf_clock_serialize(struct bt_ctf_clock *clock,
+               struct metadata_context *context)
+{
+       unsigned char *uuid;
+
+       if (!clock || !context) {
+               return;
+       }
+
+       uuid = clock->uuid;
+       g_string_append(context->string, "clock {\n");
+       g_string_append_printf(context->string, "\tname = %s;\n",
+               clock->name->str);
+       g_string_append_printf(context->string,
+               "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n",
+               uuid[0], uuid[1], uuid[2], uuid[3],
+               uuid[4], uuid[5], uuid[6], uuid[7],
+               uuid[8], uuid[9], uuid[10], uuid[11],
+               uuid[12], uuid[13], uuid[14], uuid[15]);
+       if (clock->description->len) {
+               g_string_append_printf(context->string, "\tdescription = \"%s\";\n",
+                       clock->description->str);
+       }
+
+       g_string_append_printf(context->string, "\tfreq = %" PRIu64 ";\n",
+               clock->frequency);
+       g_string_append_printf(context->string, "\tprecision = %" PRIu64 ";\n",
+               clock->precision);
+       g_string_append_printf(context->string, "\toffset_s = %" PRIu64 ";\n",
+               clock->offset_s);
+       g_string_append_printf(context->string, "\toffset = %" PRIu64 ";\n",
+               clock->offset);
+       g_string_append_printf(context->string, "\tabsolute = %s;\n",
+               clock->absolute ? "TRUE" : "FALSE");
+       g_string_append(context->string, "};\n\n");
+}
+
+BT_HIDDEN
+uint64_t bt_ctf_clock_get_time(struct bt_ctf_clock *clock)
+{
+       return clock ? clock->time : 0;
+}
+
+static
+void bt_ctf_clock_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_clock *clock;
+
+       if (!ref) {
+               return;
+       }
+
+       clock = container_of(ref, struct bt_ctf_clock, ref_count);
+       if (clock->name) {
+               g_string_free(clock->name, TRUE);
+       }
+
+       if (clock->description) {
+               g_string_free(clock->description, TRUE);
+       }
+
+       g_free(clock);
+}
diff --git a/formats/ctf/writer/event-fields.c b/formats/ctf/writer/event-fields.c
new file mode 100644 (file)
index 0000000..aa389fd
--- /dev/null
@@ -0,0 +1,1249 @@
+/*
+ * event-fields.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/ctf-writer/event-fields-internal.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/compiler.h>
+
+#define PACKET_LEN_INCREMENT   (getpagesize() * 8 * CHAR_BIT)
+
+static
+struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_enumeration_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_floating_point_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_structure_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_variant_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_array_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_sequence_create(
+               struct bt_ctf_field_type *);
+static
+struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *);
+
+static
+void bt_ctf_field_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_integer_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_structure_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_variant_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_array_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_sequence_destroy(struct bt_ctf_field *);
+static
+void bt_ctf_field_string_destroy(struct bt_ctf_field *);
+
+static
+int bt_ctf_field_generic_validate(struct bt_ctf_field *field);
+static
+int bt_ctf_field_structure_validate(struct bt_ctf_field *field);
+static
+int bt_ctf_field_variant_validate(struct bt_ctf_field *field);
+static
+int bt_ctf_field_enumeration_validate(struct bt_ctf_field *field);
+static
+int bt_ctf_field_array_validate(struct bt_ctf_field *field);
+static
+int bt_ctf_field_sequence_validate(struct bt_ctf_field *field);
+
+static
+int bt_ctf_field_integer_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_structure_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_variant_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_array_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_sequence_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+static
+int bt_ctf_field_string_serialize(struct bt_ctf_field *,
+               struct ctf_stream_pos *);
+
+static
+int increase_packet_size(struct ctf_stream_pos *pos);
+
+static
+struct bt_ctf_field *(*field_create_funcs[])(
+               struct bt_ctf_field_type *) = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_integer_create,
+       [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_create,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_floating_point_create,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_structure_create,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_variant_create,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_array_create,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_create,
+       [CTF_TYPE_STRING] = bt_ctf_field_string_create,
+};
+
+static
+void (*field_destroy_funcs[])(struct bt_ctf_field *) = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_integer_destroy,
+       [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_destroy,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_floating_point_destroy,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_structure_destroy,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_variant_destroy,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_array_destroy,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_destroy,
+       [CTF_TYPE_STRING] = bt_ctf_field_string_destroy,
+};
+
+static
+int (*field_validate_funcs[])(struct bt_ctf_field *) = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_generic_validate,
+       [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_validate,
+       [CTF_TYPE_FLOAT] = bt_ctf_field_generic_validate,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_structure_validate,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_variant_validate,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_array_validate,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_validate,
+       [CTF_TYPE_STRING] = bt_ctf_field_generic_validate,
+};
+
+static
+int (*field_serialize_funcs[])(struct bt_ctf_field *,
+               struct ctf_stream_pos *) = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_integer_serialize,
+       [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_serialize,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_floating_point_serialize,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_structure_serialize,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_variant_serialize,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_array_serialize,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_serialize,
+       [CTF_TYPE_STRING] = bt_ctf_field_string_serialize,
+};
+
+struct bt_ctf_field *bt_ctf_field_create(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field *field = NULL;
+       enum ctf_type_id type_id;
+
+       if (!type) {
+               goto error;
+       }
+
+       type_id = bt_ctf_field_type_get_type_id(type);
+       if (type_id <= CTF_TYPE_UNKNOWN ||
+               type_id >= NR_CTF_TYPES) {
+               goto error;
+       }
+
+       field = field_create_funcs[type_id](type);
+       if (!field) {
+               goto error;
+       }
+
+       /* The type's declaration can't change after this point */
+       bt_ctf_field_type_freeze(type);
+       bt_ctf_field_type_get(type);
+       bt_ctf_ref_init(&field->ref_count);
+       field->type = type;
+error:
+       return field;
+}
+
+void bt_ctf_field_get(struct bt_ctf_field *field)
+{
+       if (field) {
+               bt_ctf_ref_get(&field->ref_count);
+       }
+}
+
+void bt_ctf_field_put(struct bt_ctf_field *field)
+{
+       if (field) {
+               bt_ctf_ref_put(&field->ref_count, bt_ctf_field_destroy);
+       }
+}
+
+int bt_ctf_field_sequence_set_length(struct bt_ctf_field *field,
+               struct bt_ctf_field *length_field)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_integer *length_type;
+       struct bt_ctf_field_integer *length;
+       struct bt_ctf_field_sequence *sequence;
+       uint64_t sequence_length;
+
+       if (!field || !length_field) {
+               ret = -1;
+               goto end;
+       }
+       if (bt_ctf_field_type_get_type_id(length_field->type) !=
+               CTF_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+
+       length_type = container_of(length_field->type,
+               struct bt_ctf_field_type_integer, parent);
+       if (length_type->declaration.signedness) {
+               ret = -1;
+               goto end;
+       }
+
+       length = container_of(length_field, struct bt_ctf_field_integer,
+               parent);
+       sequence_length = length->definition.value._unsigned;
+       sequence = container_of(field, struct bt_ctf_field_sequence, parent);
+       if (sequence->elements) {
+               g_ptr_array_free(sequence->elements, TRUE);
+               bt_ctf_field_put(sequence->length);
+       }
+
+       sequence->elements = g_ptr_array_new_full((size_t)sequence_length,
+               (GDestroyNotify)bt_ctf_field_put);
+       if (!sequence->elements) {
+               ret = -1;
+               goto end;
+       }
+
+       g_ptr_array_set_size(sequence->elements, (size_t)sequence_length);
+       bt_ctf_field_get(length_field);
+       sequence->length = length_field;
+end:
+       return ret;
+}
+
+struct bt_ctf_field *bt_ctf_field_structure_get_field(
+               struct bt_ctf_field *field, const char *name)
+{
+       struct bt_ctf_field *new_field = NULL;
+       GQuark field_quark;
+       struct bt_ctf_field_structure *structure;
+       struct bt_ctf_field_type_structure *structure_type;
+       struct bt_ctf_field_type *field_type;
+       size_t index;
+
+       if (!field || !name ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_STRUCT) {
+               goto error;
+       }
+
+       field_quark = g_quark_from_string(name);
+       structure = container_of(field, struct bt_ctf_field_structure, parent);
+       structure_type = container_of(field->type,
+               struct bt_ctf_field_type_structure, parent);
+       field_type = bt_ctf_field_type_structure_get_type(structure_type, name);
+       if (!g_hash_table_lookup_extended(structure->field_name_to_index,
+               GUINT_TO_POINTER(field_quark), NULL, (gpointer *)&index)) {
+               goto error;
+       }
+
+       if (structure->fields->pdata[index]) {
+               new_field = structure->fields->pdata[index];
+               goto end;
+       }
+
+       new_field = bt_ctf_field_create(field_type);
+       if (!new_field) {
+               goto error;
+       }
+
+       structure->fields->pdata[index] = new_field;
+end:
+       bt_ctf_field_get(new_field);
+error:
+       return new_field;
+}
+
+BT_HIDDEN
+int bt_ctf_field_structure_set_field(struct bt_ctf_field *field,
+               const char *name, struct bt_ctf_field *value)
+{
+       int ret = 0;
+       GQuark field_quark;
+       struct bt_ctf_field_structure *structure;
+       struct bt_ctf_field_type_structure *structure_type;
+       struct bt_ctf_field_type *expected_field_type;
+       size_t index;
+
+       if (!field || !name || !value ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_STRUCT) {
+               ret = -1;
+               goto end;
+       }
+
+       field_quark = g_quark_from_string(name);
+       structure = container_of(field, struct bt_ctf_field_structure, parent);
+       structure_type = container_of(field->type,
+               struct bt_ctf_field_type_structure, parent);
+       expected_field_type = bt_ctf_field_type_structure_get_type(
+               structure_type, name);
+       if (expected_field_type != value->type) {
+               ret = -1;
+               goto end;
+       }
+
+       if (!g_hash_table_lookup_extended(structure->field_name_to_index,
+               GUINT_TO_POINTER(field_quark), NULL, (gpointer *) &index)) {
+               goto end;
+       }
+
+       if (structure->fields->pdata[index]) {
+               bt_ctf_field_put(structure->fields->pdata[index]);
+       }
+
+       structure->fields->pdata[index] = value;
+       bt_ctf_field_get(value);
+end:
+       return ret;
+}
+
+struct bt_ctf_field *bt_ctf_field_array_get_field(struct bt_ctf_field *field,
+               uint64_t index)
+{
+       struct bt_ctf_field *new_field = NULL;
+       struct bt_ctf_field_array *array;
+       struct bt_ctf_field_type_array *array_type;
+       struct bt_ctf_field_type *field_type;
+
+       if (!field || bt_ctf_field_type_get_type_id(field->type) !=
+               CTF_TYPE_ARRAY) {
+               goto end;
+       }
+
+       array = container_of(field, struct bt_ctf_field_array, parent);
+       if (index >= array->elements->len) {
+               goto end;
+       }
+
+       array_type = container_of(field->type, struct bt_ctf_field_type_array,
+               parent);
+       field_type = bt_ctf_field_type_array_get_element_type(array_type);
+       if (array->elements->pdata[(size_t)index]) {
+               new_field = array->elements->pdata[(size_t)index];
+               goto end;
+       }
+
+       new_field = bt_ctf_field_create(field_type);
+       bt_ctf_field_get(new_field);
+       array->elements->pdata[(size_t)index] = new_field;
+end:
+       return new_field;
+}
+
+struct bt_ctf_field *bt_ctf_field_sequence_get_field(struct bt_ctf_field *field,
+               uint64_t index)
+{
+       struct bt_ctf_field *new_field = NULL;
+       struct bt_ctf_field_sequence *sequence;
+       struct bt_ctf_field_type_sequence *sequence_type;
+       struct bt_ctf_field_type *field_type;
+
+       if (!field || bt_ctf_field_type_get_type_id(field->type) !=
+               CTF_TYPE_SEQUENCE) {
+               goto end;
+       }
+
+       sequence = container_of(field, struct bt_ctf_field_sequence, parent);
+       if (!sequence->elements || sequence->elements->len <= index) {
+               goto end;
+       }
+
+       sequence_type = container_of(field->type,
+               struct bt_ctf_field_type_sequence, parent);
+       field_type = bt_ctf_field_type_sequence_get_element_type(sequence_type);
+       if (sequence->elements->pdata[(size_t)index]) {
+               new_field = sequence->elements->pdata[(size_t)index];
+               goto end;
+       }
+
+       new_field = bt_ctf_field_create(field_type);
+       bt_ctf_field_get(new_field);
+       sequence->elements->pdata[(size_t)index] = new_field;
+end:
+       return new_field;
+}
+
+struct bt_ctf_field *bt_ctf_field_variant_get_field(struct bt_ctf_field *field,
+               struct bt_ctf_field *tag_field)
+{
+       struct bt_ctf_field *new_field = NULL;
+       struct bt_ctf_field_variant *variant;
+       struct bt_ctf_field_type_variant *variant_type;
+       struct bt_ctf_field_type *field_type;
+       struct bt_ctf_field *tag_enum = NULL;
+       struct bt_ctf_field_integer *tag_enum_integer;
+       int64_t tag_enum_value;
+
+       if (!field || !tag_field ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_VARIANT ||
+               bt_ctf_field_type_get_type_id(tag_field->type) !=
+                       CTF_TYPE_ENUM) {
+               goto end;
+       }
+
+       variant = container_of(field, struct bt_ctf_field_variant, parent);
+       variant_type = container_of(field->type,
+               struct bt_ctf_field_type_variant, parent);
+       tag_enum = bt_ctf_field_enumeration_get_container(tag_field);
+       if (!tag_enum) {
+               goto end;
+       }
+
+       tag_enum_integer = container_of(tag_enum, struct bt_ctf_field_integer,
+               parent);
+
+       if (!bt_ctf_field_validate(variant->tag)) {
+               goto end;
+       }
+
+       tag_enum_value = tag_enum_integer->definition.value._signed;
+       field_type = bt_ctf_field_type_variant_get_field_type(variant_type,
+               tag_enum_value);
+       if (!field_type) {
+               goto end;
+       }
+
+       new_field = bt_ctf_field_create(field_type);
+       if (!new_field) {
+               goto end;
+       }
+
+       bt_ctf_field_put(variant->tag);
+       bt_ctf_field_put(variant->payload);
+       bt_ctf_field_get(new_field);
+       bt_ctf_field_get(tag_field);
+       variant->tag = tag_field;
+       variant->payload = new_field;
+end:
+       bt_ctf_field_put(tag_enum);
+       return new_field;
+}
+
+struct bt_ctf_field *bt_ctf_field_enumeration_get_container(
+       struct bt_ctf_field *field)
+{
+       struct bt_ctf_field *container = NULL;
+       struct bt_ctf_field_enumeration *enumeration;
+
+       if (!field) {
+               goto end;
+       }
+
+       enumeration = container_of(field, struct bt_ctf_field_enumeration,
+               parent);
+       if (!enumeration->payload) {
+               struct bt_ctf_field_type_enumeration *enumeration_type =
+                       container_of(field->type,
+                       struct bt_ctf_field_type_enumeration, parent);
+               enumeration->payload =
+                       bt_ctf_field_create(enumeration_type->container);
+       }
+
+       container = enumeration->payload;
+       bt_ctf_field_get(container);
+end:
+       return container;
+}
+
+int bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *field,
+               int64_t value)
+{
+       int ret = 0;
+       struct bt_ctf_field_integer *integer;
+       struct bt_ctf_field_type_integer *integer_type;
+       unsigned int size;
+       int64_t min_value, max_value;
+
+       if (!field ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+
+       integer = container_of(field, struct bt_ctf_field_integer, parent);
+       integer_type = container_of(field->type,
+               struct bt_ctf_field_type_integer, parent);
+       if (!integer_type->declaration.signedness) {
+               ret = -1;
+               goto end;
+       }
+
+       size = integer_type->declaration.len;
+       min_value = -((int64_t)1 << (size - 1));
+       max_value = ((int64_t)1 << (size - 1)) - 1;
+       if (value < min_value || value > max_value) {
+               ret = -1;
+               goto end;
+       }
+
+       integer->definition.value._signed = value;
+       integer->parent.payload_set = 1;
+end:
+       return ret;
+}
+
+int bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *field,
+               uint64_t value)
+{
+       int ret = 0;
+       struct bt_ctf_field_integer *integer;
+       struct bt_ctf_field_type_integer *integer_type;
+       unsigned int size;
+       uint64_t max_value;
+
+       if (!field ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+
+       integer = container_of(field, struct bt_ctf_field_integer, parent);
+       integer_type = container_of(field->type,
+               struct bt_ctf_field_type_integer, parent);
+       if (integer_type->declaration.signedness) {
+               ret = -1;
+               goto end;
+       }
+
+       size = integer_type->declaration.len;
+       max_value = (size == 64) ? UINT64_MAX : ((uint64_t)1 << size) - 1;
+       if (value > max_value) {
+               ret = -1;
+               goto end;
+       }
+
+       integer->definition.value._unsigned = value;
+       integer->parent.payload_set = 1;
+end:
+       return ret;
+}
+
+int bt_ctf_field_floating_point_set_value(struct bt_ctf_field *field,
+               double value)
+{
+       int ret = 0;
+       struct bt_ctf_field_floating_point *floating_point;
+
+       if (!field ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_FLOAT) {
+               ret = -1;
+               goto end;
+       }
+       floating_point = container_of(field, struct bt_ctf_field_floating_point,
+               parent);
+       floating_point->definition.value = value;
+       floating_point->parent.payload_set = 1;
+end:
+       return ret;
+}
+
+int bt_ctf_field_string_set_value(struct bt_ctf_field *field,
+               const char *value)
+{
+       int ret = 0;
+       struct bt_ctf_field_string *string;
+
+       if (!field || !value ||
+               bt_ctf_field_type_get_type_id(field->type) !=
+                       CTF_TYPE_STRING) {
+               ret = -1;
+               goto end;
+       }
+
+       string = container_of(field, struct bt_ctf_field_string, parent);
+       if (string->payload) {
+               g_string_free(string->payload, TRUE);
+       }
+
+       string->payload = g_string_new(value);
+       string->parent.payload_set = 1;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_field_validate(struct bt_ctf_field *field)
+{
+       int ret = 0;
+       enum ctf_type_id type_id;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       type_id = bt_ctf_field_type_get_type_id(field->type);
+       if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = field_validate_funcs[type_id](field);
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_field_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       int ret = 0;
+       enum ctf_type_id type_id;
+
+       if (!field || !pos) {
+               ret = -1;
+               goto end;
+       }
+
+       type_id = bt_ctf_field_type_get_type_id(field->type);
+       if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = field_serialize_funcs[type_id](field, pos);
+end:
+       return ret;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_integer *integer_type = container_of(type,
+               struct bt_ctf_field_type_integer, parent);
+       struct bt_ctf_field_integer *integer = g_new0(
+               struct bt_ctf_field_integer, 1);
+
+       if (integer) {
+               integer->definition.declaration = &integer_type->declaration;
+       }
+
+       return integer ? &integer->parent : NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_enumeration_create(
+       struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_enumeration *enumeration = g_new0(
+               struct bt_ctf_field_enumeration, 1);
+
+       return enumeration ? &enumeration->parent : NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_floating_point_create(
+       struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_floating_point *floating_point;
+       struct bt_ctf_field_type_floating_point *floating_point_type;
+
+       floating_point = g_new0(struct bt_ctf_field_floating_point, 1);
+       if (!floating_point) {
+               goto end;
+       }
+
+       floating_point_type = container_of(type,
+               struct bt_ctf_field_type_floating_point, parent);
+       floating_point->definition.declaration = container_of(
+               type->declaration, struct declaration_float, p);
+
+
+       floating_point->definition.sign = &floating_point->sign;
+       floating_point->sign.declaration = &floating_point_type->sign;
+       floating_point->definition.sign->p.declaration =
+               &floating_point_type->sign.p;
+
+       floating_point->definition.mantissa = &floating_point->mantissa;
+       floating_point->mantissa.declaration = &floating_point_type->mantissa;
+       floating_point->definition.mantissa->p.declaration =
+               &floating_point_type->mantissa.p;
+
+       floating_point->definition.exp = &floating_point->exp;
+       floating_point->exp.declaration = &floating_point_type->exp;
+       floating_point->definition.exp->p.declaration =
+               &floating_point_type->exp.p;
+
+end:
+       return floating_point ? &floating_point->parent : NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_structure_create(
+       struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_structure *structure_type = container_of(type,
+               struct bt_ctf_field_type_structure, parent);
+       struct bt_ctf_field_structure *structure = g_new0(
+               struct bt_ctf_field_structure, 1);
+       struct bt_ctf_field *field = NULL;
+
+       if (!structure || !structure_type->fields->len) {
+               goto end;
+       }
+
+       structure->field_name_to_index = structure_type->field_name_to_index;
+       structure->fields = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_field_put);
+       g_ptr_array_set_size(structure->fields,
+               g_hash_table_size(structure->field_name_to_index));
+       field = &structure->parent;
+end:
+       return field;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_variant_create(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_variant *variant = g_new0(
+               struct bt_ctf_field_variant, 1);
+       return variant ? &variant->parent : NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_array_create(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_array *array = g_new0(struct bt_ctf_field_array, 1);
+       struct bt_ctf_field_type_array *array_type;
+       unsigned int array_length;
+
+       if (!array || !type) {
+               goto error;
+       }
+
+       array_type = container_of(type, struct bt_ctf_field_type_array, parent);
+       array_length = array_type->length;
+       array->elements = g_ptr_array_new_full(array_length,
+               (GDestroyNotify)bt_ctf_field_put);
+       if (!array->elements) {
+               goto error;
+       }
+
+       g_ptr_array_set_size(array->elements, array_length);
+       return &array->parent;
+error:
+       g_free(array);
+       return NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_sequence_create(
+       struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_sequence *sequence = g_new0(
+               struct bt_ctf_field_sequence, 1);
+       return sequence ? &sequence->parent : NULL;
+}
+
+static
+struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_string *string = g_new0(
+               struct bt_ctf_field_string, 1);
+       return string ? &string->parent : NULL;
+}
+
+static
+void bt_ctf_field_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field *field;
+       struct bt_ctf_field_type *type;
+       enum ctf_type_id type_id;
+
+       if (!ref) {
+               return;
+       }
+
+       field = container_of(ref, struct bt_ctf_field, ref_count);
+       type = field->type;
+       type_id = bt_ctf_field_type_get_type_id(type);
+       if (type_id <= CTF_TYPE_UNKNOWN ||
+               type_id >= NR_CTF_TYPES) {
+               return;
+       }
+
+       field_destroy_funcs[type_id](field);
+       if (type) {
+               bt_ctf_field_type_put(type);
+       }
+}
+
+static
+void bt_ctf_field_integer_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_integer *integer;
+
+       if (!field) {
+               return;
+       }
+
+       integer = container_of(field, struct bt_ctf_field_integer, parent);
+       g_free(integer);
+}
+
+static
+void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_enumeration *enumeration;
+
+       if (!field) {
+               return;
+       }
+
+       enumeration = container_of(field, struct bt_ctf_field_enumeration,
+               parent);
+       bt_ctf_field_put(enumeration->payload);
+       g_free(enumeration);
+}
+
+static
+void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_floating_point *floating_point;
+
+       if (!field) {
+               return;
+       }
+
+       floating_point = container_of(field, struct bt_ctf_field_floating_point,
+               parent);
+       g_free(floating_point);
+}
+
+static
+void bt_ctf_field_structure_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_structure *structure;
+
+       if (!field) {
+               return;
+       }
+
+       structure = container_of(field, struct bt_ctf_field_structure, parent);
+       g_ptr_array_free(structure->fields, TRUE);
+       g_free(structure);
+}
+
+static
+void bt_ctf_field_variant_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_variant *variant;
+
+       if (!field) {
+               return;
+       }
+
+       variant = container_of(field, struct bt_ctf_field_variant, parent);
+       bt_ctf_field_put(variant->tag);
+       bt_ctf_field_put(variant->payload);
+       g_free(variant);
+}
+
+static
+void bt_ctf_field_array_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_array *array;
+
+       if (!field) {
+               return;
+       }
+
+       array = container_of(field, struct bt_ctf_field_array, parent);
+       g_ptr_array_free(array->elements, TRUE);
+       g_free(array);
+}
+
+static
+void bt_ctf_field_sequence_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_sequence *sequence;
+
+       if (!field) {
+               return;
+       }
+
+       sequence = container_of(field, struct bt_ctf_field_sequence, parent);
+       g_ptr_array_free(sequence->elements, TRUE);
+       bt_ctf_field_put(sequence->length);
+       g_free(sequence);
+}
+
+static
+void bt_ctf_field_string_destroy(struct bt_ctf_field *field)
+{
+       struct bt_ctf_field_string *string;
+       if (!field) {
+               return;
+       }
+
+       string = container_of(field, struct bt_ctf_field_string, parent);
+       g_string_free(string->payload, TRUE);
+       g_free(string);
+}
+
+static
+int bt_ctf_field_generic_validate(struct bt_ctf_field *field)
+{
+       return !(field && field->payload_set);
+}
+
+static
+int bt_ctf_field_enumeration_validate(struct bt_ctf_field *field)
+{
+       int ret;
+       struct bt_ctf_field_enumeration *enumeration;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       enumeration = container_of(field, struct bt_ctf_field_enumeration,
+               parent);
+       if (!enumeration->payload) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_field_validate(enumeration->payload);
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_structure_validate(struct bt_ctf_field *field)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_structure *structure;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       structure = container_of(field, struct bt_ctf_field_structure, parent);
+       for (i = 0; i < structure->fields->len; i++) {
+               ret = bt_ctf_field_validate(structure->fields->pdata[i]);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_variant_validate(struct bt_ctf_field *field)
+{
+       int ret = 0;
+       struct bt_ctf_field_variant *variant;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       variant = container_of(field, struct bt_ctf_field_variant, parent);
+       ret = bt_ctf_field_validate(variant->payload);
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_array_validate(struct bt_ctf_field *field)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_array *array;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       array = container_of(field, struct bt_ctf_field_array, parent);
+       for (i = 0; i < array->elements->len; i++) {
+               ret = bt_ctf_field_validate(array->elements->pdata[i]);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_sequence_validate(struct bt_ctf_field *field)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_sequence *sequence;
+
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       sequence = container_of(field, struct bt_ctf_field_sequence, parent);
+       for (i = 0; i < sequence->elements->len; i++) {
+               ret = bt_ctf_field_validate(sequence->elements->pdata[i]);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_integer_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       int ret = 0;
+       struct bt_ctf_field_integer *integer = container_of(field,
+               struct bt_ctf_field_integer, parent);
+
+retry:
+       ret = ctf_integer_write(&pos->parent, &integer->definition.p);
+       if (ret == -EFAULT) {
+               /*
+                * The field is too large to fit in the current packet's
+                * remaining space. Bump the packet size and retry.
+                */
+               ret = increase_packet_size(pos);
+               if (ret) {
+                       goto end;
+               }
+               goto retry;
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       struct bt_ctf_field_enumeration *enumeration = container_of(
+               field, struct bt_ctf_field_enumeration, parent);
+
+       return bt_ctf_field_serialize(enumeration->payload, pos);
+}
+
+static
+int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       int ret = 0;
+       struct bt_ctf_field_floating_point *floating_point = container_of(field,
+               struct bt_ctf_field_floating_point, parent);
+
+retry:
+       ret = ctf_float_write(&pos->parent, &floating_point->definition.p);
+       if (ret == -EFAULT) {
+               /*
+                * The field is too large to fit in the current packet's
+                * remaining space. Bump the packet size and retry.
+                */
+               ret = increase_packet_size(pos);
+               if (ret) {
+                       goto end;
+               }
+               goto retry;
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_structure_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_structure *structure = container_of(
+               field, struct bt_ctf_field_structure, parent);
+
+       while (!ctf_pos_access_ok(pos,
+               offset_align(pos->offset,
+                       field->type->declaration->alignment))) {
+               increase_packet_size(pos);
+       }
+
+       ctf_align_pos(pos, field->type->declaration->alignment);
+
+       for (i = 0; i < structure->fields->len; i++) {
+               struct bt_ctf_field *field = g_ptr_array_index(
+                       structure->fields, i);
+
+               ret = bt_ctf_field_serialize(field, pos);
+               if (ret) {
+                       break;
+               }
+       }
+
+       return ret;
+}
+
+static
+int bt_ctf_field_variant_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       struct bt_ctf_field_variant *variant = container_of(
+               field, struct bt_ctf_field_variant, parent);
+
+       return bt_ctf_field_serialize(variant->payload, pos);
+}
+
+static
+int bt_ctf_field_array_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_array *array = container_of(
+               field, struct bt_ctf_field_array, parent);
+
+       for (i = 0; i < array->elements->len; i++) {
+               ret = bt_ctf_field_serialize(
+                       g_ptr_array_index(array->elements, i), pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_sequence_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_sequence *sequence = container_of(
+               field, struct bt_ctf_field_sequence, parent);
+
+       for (i = 0; i < sequence->elements->len; i++) {
+               ret = bt_ctf_field_serialize(
+                       g_ptr_array_index(sequence->elements, i), pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_string_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field_string *string = container_of(field,
+               struct bt_ctf_field_string, parent);
+       struct bt_ctf_field_type *character_type =
+               get_field_type(FIELD_TYPE_ALIAS_UINT8_T);
+       struct bt_ctf_field *character = bt_ctf_field_create(character_type);
+
+       for (i = 0; i < string->payload->len + 1; i++) {
+               ret = bt_ctf_field_unsigned_integer_set_value(character,
+                       (uint64_t) string->payload->str[i]);
+               if (ret) {
+                       goto end;
+               }
+
+               ret = bt_ctf_field_integer_serialize(character, pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       bt_ctf_field_put(character);
+       bt_ctf_field_type_put(character_type);
+       return ret;
+}
+
+static
+int increase_packet_size(struct ctf_stream_pos *pos)
+{
+       int ret;
+
+       assert(pos);
+       ret = munmap_align(pos->base_mma);
+       if (ret) {
+               goto end;
+       }
+
+       pos->packet_size += PACKET_LEN_INCREMENT;
+       ret = posix_fallocate(pos->fd, pos->mmap_offset,
+               pos->packet_size / CHAR_BIT);
+       if (ret) {
+               goto end;
+       }
+
+       pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot,
+               pos->flags, pos->fd, pos->mmap_offset);
+       if (pos->base_mma == MAP_FAILED) {
+               ret = -1;
+       }
+end:
+       return ret;
+}
diff --git a/formats/ctf/writer/event-types.c b/formats/ctf/writer/event-types.c
new file mode 100644 (file)
index 0000000..9b74b6e
--- /dev/null
@@ -0,0 +1,1402 @@
+/*
+ * event-types.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/compiler.h>
+#include <babeltrace/endian.h>
+#include <float.h>
+#include <inttypes.h>
+
+struct range_overlap_query {
+       int64_t range_start, range_end;
+       int overlaps;
+       GQuark mapping_name;
+};
+
+static
+void bt_ctf_field_type_integer_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_enumeration_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_floating_point_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_structure_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_variant_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_array_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_sequence_destroy(struct bt_ctf_ref *);
+static
+void bt_ctf_field_type_string_destroy(struct bt_ctf_ref *);
+
+static
+void (* const type_destroy_funcs[])(struct bt_ctf_ref *) = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_destroy,
+       [CTF_TYPE_ENUM] =
+               bt_ctf_field_type_enumeration_destroy,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_type_floating_point_destroy,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_type_structure_destroy,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_destroy,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_destroy,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_destroy,
+       [CTF_TYPE_STRING] = bt_ctf_field_type_string_destroy,
+};
+
+static
+void generic_field_type_freeze(struct bt_ctf_field_type *);
+static
+void bt_ctf_field_type_enumeration_freeze(struct bt_ctf_field_type *);
+static
+void bt_ctf_field_type_structure_freeze(struct bt_ctf_field_type *);
+static
+void bt_ctf_field_type_variant_freeze(struct bt_ctf_field_type *);
+static
+void bt_ctf_field_type_array_freeze(struct bt_ctf_field_type *);
+static
+void bt_ctf_field_type_sequence_freeze(struct bt_ctf_field_type *);
+
+static
+type_freeze_func const type_freeze_funcs[] = {
+       [CTF_TYPE_INTEGER] = generic_field_type_freeze,
+       [CTF_TYPE_ENUM] = bt_ctf_field_type_enumeration_freeze,
+       [CTF_TYPE_FLOAT] = generic_field_type_freeze,
+       [CTF_TYPE_STRUCT] = bt_ctf_field_type_structure_freeze,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_freeze,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_freeze,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_freeze,
+       [CTF_TYPE_STRING] = generic_field_type_freeze,
+};
+
+static
+int bt_ctf_field_type_integer_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_enumeration_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_floating_point_serialize(
+               struct bt_ctf_field_type *, struct metadata_context *);
+static
+int bt_ctf_field_type_structure_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_variant_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_array_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_sequence_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+static
+int bt_ctf_field_type_string_serialize(struct bt_ctf_field_type *,
+               struct metadata_context *);
+
+static
+type_serialize_func const type_serialize_funcs[] = {
+       [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_serialize,
+       [CTF_TYPE_ENUM] =
+               bt_ctf_field_type_enumeration_serialize,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_type_floating_point_serialize,
+       [CTF_TYPE_STRUCT] =
+               bt_ctf_field_type_structure_serialize,
+       [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_serialize,
+       [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_serialize,
+       [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_serialize,
+       [CTF_TYPE_STRING] = bt_ctf_field_type_string_serialize,
+};
+
+static
+void bt_ctf_field_type_integer_set_byte_order(struct bt_ctf_field_type *,
+               int byte_order);
+static
+void bt_ctf_field_type_floating_point_set_byte_order(
+               struct bt_ctf_field_type *, int byte_order);
+
+static
+void (* const set_byte_order_funcs[])(struct bt_ctf_field_type *,
+       int) = {
+       [CTF_TYPE_INTEGER] =
+               bt_ctf_field_type_integer_set_byte_order,
+       [CTF_TYPE_FLOAT] =
+               bt_ctf_field_type_floating_point_set_byte_order,
+       [CTF_TYPE_ENUM ... CTF_TYPE_SEQUENCE] = NULL,
+};
+
+
+static
+void destroy_enumeration_mapping(struct enumeration_mapping *mapping)
+{
+       g_free(mapping);
+}
+
+static
+void destroy_structure_field(struct structure_field *field)
+{
+       if (field->type) {
+               bt_ctf_field_type_put(field->type);
+       }
+
+       g_free(field);
+}
+
+static
+void check_ranges_overlap(gpointer element, gpointer query)
+{
+       struct enumeration_mapping *mapping = element;
+       struct range_overlap_query *overlap_query = query;
+
+       if (mapping->range_start <= overlap_query->range_end
+               && overlap_query->range_start <= mapping->range_end) {
+               overlap_query->overlaps = 1;
+               overlap_query->mapping_name = mapping->string;
+       }
+
+       overlap_query->overlaps |=
+               mapping->string == overlap_query->mapping_name;
+}
+
+static
+void bt_ctf_field_type_init(struct bt_ctf_field_type *type)
+{
+       enum ctf_type_id type_id = type->declaration->id;
+
+       assert(type && (type_id > CTF_TYPE_UNKNOWN) &&
+               (type_id < NR_CTF_TYPES));
+
+       bt_ctf_ref_init(&type->ref_count);
+       type->freeze = type_freeze_funcs[type_id];
+       type->serialize = type_serialize_funcs[type_id];
+       bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_NATIVE);
+       type->declaration->alignment = 1;
+}
+
+static
+int add_structure_field(GPtrArray *fields,
+               GHashTable *field_name_to_index,
+               struct bt_ctf_field_type *field_type,
+               const char *field_name)
+{
+       int ret = 0;
+       GQuark name_quark = g_quark_from_string(field_name);
+       struct structure_field *field;
+
+       /* Make sure structure does not contain a field of the same name */
+       if (g_hash_table_contains(field_name_to_index,
+                       GUINT_TO_POINTER(name_quark))) {
+               ret = -1;
+               goto end;
+       }
+
+       field = g_new0(struct structure_field, 1);
+       if (!field) {
+               ret = -1;
+               goto end;
+       }
+
+       bt_ctf_field_type_get(field_type);
+       field->name = name_quark;
+       field->type = field_type;
+       g_hash_table_insert(field_name_to_index,
+               (gpointer) (unsigned long) name_quark,
+               (gpointer) (unsigned long) fields->len);
+       g_ptr_array_add(fields, field);
+       bt_ctf_field_type_freeze(field_type);
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_integer_create(unsigned int size)
+{
+       struct bt_ctf_field_type_integer *integer =
+               g_new0(struct bt_ctf_field_type_integer, 1);
+
+       if (!integer || size > 64) {
+               return NULL;
+       }
+
+       integer->parent.declaration = &integer->declaration.p;
+       integer->parent.declaration->id = CTF_TYPE_INTEGER;
+       integer->declaration.len = size;
+       integer->declaration.base = BT_CTF_INTEGER_BASE_DECIMAL;
+       integer->declaration.encoding = CTF_STRING_NONE;
+       bt_ctf_field_type_init(&integer->parent);
+       return &integer->parent;
+}
+
+int bt_ctf_field_type_integer_set_signed(struct bt_ctf_field_type *type,
+               int is_signed)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_integer *integer;
+
+       if (!type || type->frozen ||
+               type->declaration->id != CTF_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+
+       integer = container_of(type, struct bt_ctf_field_type_integer, parent);
+       if (is_signed && integer->declaration.len <= 1) {
+               ret = -1;
+               goto end;
+       }
+
+       integer->declaration.signedness = !!is_signed;
+end:
+       return ret;
+}
+
+int bt_ctf_field_type_integer_set_base(struct bt_ctf_field_type *type,
+               enum bt_ctf_integer_base base)
+{
+       int ret = 0;
+
+       if (!type || type->frozen ||
+               type->declaration->id != CTF_TYPE_INTEGER) {
+               ret = -1;
+               goto end;
+       }
+
+       switch (base) {
+       case BT_CTF_INTEGER_BASE_BINARY:
+       case BT_CTF_INTEGER_BASE_OCTAL:
+       case BT_CTF_INTEGER_BASE_DECIMAL:
+       case BT_CTF_INTEGER_BASE_HEXADECIMAL:
+       {
+               struct bt_ctf_field_type_integer *integer = container_of(type,
+                       struct bt_ctf_field_type_integer, parent);
+               integer->declaration.base = base;
+               break;
+       }
+       default:
+               ret = -1;
+       }
+end:
+       return ret;
+}
+
+int bt_ctf_field_type_integer_set_encoding(struct bt_ctf_field_type *type,
+               enum ctf_string_encoding encoding)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_integer *integer;
+
+       if (!type || type->frozen ||
+               (type->declaration->id != CTF_TYPE_INTEGER) ||
+               (encoding < CTF_STRING_NONE) ||
+               (encoding >= CTF_STRING_UNKNOWN)) {
+               ret = -1;
+               goto end;
+       }
+
+       integer = container_of(type, struct bt_ctf_field_type_integer, parent);
+       integer->declaration.encoding = encoding;
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_enumeration_create(
+               struct bt_ctf_field_type *integer_container_type)
+{
+       struct bt_ctf_field_type_enumeration *enumeration = NULL;
+
+       if (!integer_container_type) {
+               goto error;
+       }
+
+       enumeration = g_new0(struct bt_ctf_field_type_enumeration, 1);
+       if (!enumeration) {
+               goto error;
+       }
+
+       enumeration->parent.declaration = &enumeration->declaration.p;
+       enumeration->parent.declaration->id = CTF_TYPE_ENUM;
+       bt_ctf_field_type_get(integer_container_type);
+       enumeration->container = integer_container_type;
+       enumeration->entries = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)destroy_enumeration_mapping);
+       bt_ctf_field_type_init(&enumeration->parent);
+       return &enumeration->parent;
+error:
+       g_free(enumeration);
+       return NULL;
+}
+
+int bt_ctf_field_type_enumeration_add_mapping(
+               struct bt_ctf_field_type *type, const char *string,
+               int64_t range_start, int64_t range_end)
+{
+       int ret = 0;
+       GQuark mapping_name;
+       struct enumeration_mapping *mapping;
+       struct bt_ctf_field_type_enumeration *enumeration;
+       struct range_overlap_query query;
+
+       if (!type || (type->declaration->id != CTF_TYPE_ENUM) ||
+               type->frozen ||
+               (range_end < range_start)) {
+               ret = -1;
+               goto end;
+       }
+
+       if (validate_identifier(string)) {
+               ret = -1;
+               goto end;
+       }
+
+       mapping_name = g_quark_from_string(string);
+       query = (struct range_overlap_query) { .range_start = range_start,
+               .range_end = range_end,
+               .mapping_name = mapping_name,
+               .overlaps = 0 };
+       enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
+               parent);
+
+       /* Check that the range does not overlap with one already present */
+       g_ptr_array_foreach(enumeration->entries, check_ranges_overlap, &query);
+       if (query.overlaps) {
+               ret = -1;
+               goto end;
+       }
+
+       mapping = g_new(struct enumeration_mapping, 1);
+       if (!mapping) {
+               ret = -1;
+               goto end;
+       }
+
+       *mapping = (struct enumeration_mapping) {.range_start = range_start,
+               .range_end = range_end, .string = mapping_name};
+       g_ptr_array_add(enumeration->entries, mapping);
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_floating_point_create(void)
+{
+       struct bt_ctf_field_type_floating_point *floating_point =
+               g_new0(struct bt_ctf_field_type_floating_point, 1);
+
+       if (!floating_point) {
+               goto end;
+       }
+
+       floating_point->declaration.sign = &floating_point->sign;
+       floating_point->declaration.mantissa = &floating_point->mantissa;
+       floating_point->declaration.exp = &floating_point->exp;
+       floating_point->sign.len = 1;
+       floating_point->parent.declaration = &floating_point->declaration.p;
+       floating_point->parent.declaration->id = CTF_TYPE_FLOAT;
+       floating_point->declaration.exp->len =
+               sizeof(float) * CHAR_BIT - FLT_MANT_DIG;
+       floating_point->declaration.mantissa->len = FLT_MANT_DIG - 1;
+       floating_point->sign.p.alignment = 1;
+       floating_point->mantissa.p.alignment = 1;
+       floating_point->exp.p.alignment = 1;
+
+       bt_ctf_field_type_init(&floating_point->parent);
+end:
+       return floating_point ? &floating_point->parent : NULL;
+}
+
+int bt_ctf_field_type_floating_point_set_exponent_digits(
+               struct bt_ctf_field_type *type,
+               unsigned int exponent_digits)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_floating_point *floating_point;
+
+       if (!type || type->frozen ||
+               (type->declaration->id != CTF_TYPE_FLOAT)) {
+               ret = -1;
+               goto end;
+       }
+
+       floating_point = container_of(type,
+               struct bt_ctf_field_type_floating_point, parent);
+       if ((exponent_digits != sizeof(float) * CHAR_BIT - FLT_MANT_DIG) &&
+               (exponent_digits != sizeof(double) * CHAR_BIT - DBL_MANT_DIG) &&
+               (exponent_digits !=
+                       sizeof(long double) * CHAR_BIT - LDBL_MANT_DIG)) {
+               ret = -1;
+               goto end;
+       }
+
+       floating_point->declaration.exp->len = exponent_digits;
+end:
+       return ret;
+}
+
+int bt_ctf_field_type_floating_point_set_mantissa_digits(
+               struct bt_ctf_field_type *type,
+               unsigned int mantissa_digits)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_floating_point *floating_point;
+
+       if (!type || type->frozen ||
+               (type->declaration->id != CTF_TYPE_FLOAT)) {
+               ret = -1;
+               goto end;
+       }
+
+       floating_point = container_of(type,
+               struct bt_ctf_field_type_floating_point, parent);
+
+       if ((mantissa_digits != FLT_MANT_DIG) &&
+               (mantissa_digits != DBL_MANT_DIG) &&
+               (mantissa_digits != LDBL_MANT_DIG)) {
+               ret = -1;
+               goto end;
+       }
+
+       floating_point->declaration.mantissa->len = mantissa_digits - 1;
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_structure_create(void)
+{
+       struct bt_ctf_field_type_structure *structure =
+               g_new0(struct bt_ctf_field_type_structure, 1);
+
+       if (!structure) {
+               goto error;
+       }
+
+       structure->parent.declaration = &structure->declaration.p;
+       structure->parent.declaration->id = CTF_TYPE_STRUCT;
+       bt_ctf_field_type_init(&structure->parent);
+       structure->fields = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)destroy_structure_field);
+       structure->field_name_to_index = g_hash_table_new(NULL, NULL);
+       return &structure->parent;
+error:
+       return NULL;
+}
+
+int bt_ctf_field_type_structure_add_field(struct bt_ctf_field_type *type,
+               struct bt_ctf_field_type *field_type,
+               const char *field_name)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_structure *structure;
+
+       if (!type || !field_type || type->frozen ||
+               validate_identifier(field_name) ||
+               (type->declaration->id != CTF_TYPE_STRUCT)) {
+               goto end;
+       }
+
+       structure = container_of(type,
+               struct bt_ctf_field_type_structure, parent);
+       if (add_structure_field(structure->fields,
+               structure->field_name_to_index, field_type, field_name)) {
+               ret = -1;
+               goto end;
+       }
+
+       if (type->declaration->alignment < field_type->declaration->alignment) {
+               type->declaration->alignment =
+                       field_type->declaration->alignment;
+       }
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_variant_create(
+       struct bt_ctf_field_type *enum_tag, const char *tag_name)
+{
+       struct bt_ctf_field_type_variant *variant = NULL;
+
+       if (!enum_tag || validate_identifier(tag_name) ||
+               (enum_tag->declaration->id != CTF_TYPE_ENUM)) {
+               goto error;
+       }
+
+       variant = g_new0(struct bt_ctf_field_type_variant, 1);
+       if (!variant) {
+               goto error;
+       }
+
+       variant->parent.declaration = &variant->declaration.p;
+       variant->parent.declaration->id = CTF_TYPE_VARIANT;
+       variant->tag_name = g_string_new(tag_name);
+       bt_ctf_field_type_init(&variant->parent);
+       variant->field_name_to_index = g_hash_table_new(NULL, NULL);
+       variant->fields = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)destroy_structure_field);
+       bt_ctf_field_type_get(enum_tag);
+       variant->tag = container_of(enum_tag,
+               struct bt_ctf_field_type_enumeration, parent);
+       return &variant->parent;
+error:
+       return NULL;
+}
+
+int bt_ctf_field_type_variant_add_field(struct bt_ctf_field_type *type,
+               struct bt_ctf_field_type *field_type,
+               const char *field_name)
+{
+       size_t i;
+       int ret = 0;
+       int name_found = 0;
+       struct bt_ctf_field_type_variant *variant;
+       GQuark field_name_quark = g_quark_from_string(field_name);
+
+       if (!type || !field_type || type->frozen ||
+               validate_identifier(field_name) ||
+               (type->declaration->id != CTF_TYPE_VARIANT)) {
+               ret = -1;
+               goto end;
+       }
+
+       variant = container_of(type, struct bt_ctf_field_type_variant, parent);
+       /* Make sure this name is present in the enum tag */
+       for (i = 0; i < variant->tag->entries->len; i++) {
+               struct enumeration_mapping *mapping =
+                       g_ptr_array_index(variant->tag->entries, i);
+
+               if (mapping->string == field_name_quark) {
+                       name_found = 1;
+                       break;
+               }
+       }
+
+       if (!name_found || add_structure_field(variant->fields,
+               variant->field_name_to_index, field_type, field_name)) {
+               ret = -1;
+               goto end;
+       }
+end:
+       return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_array_create(
+               struct bt_ctf_field_type *element_type,
+               unsigned int length)
+{
+       struct bt_ctf_field_type_array *array = NULL;
+
+       if (!element_type || length == 0) {
+               goto error;
+       }
+
+       array = g_new0(struct bt_ctf_field_type_array, 1);
+       if (!array) {
+               goto error;
+       }
+
+       array->parent.declaration = &array->declaration.p;
+       array->parent.declaration->id = CTF_TYPE_ARRAY;
+       bt_ctf_field_type_init(&array->parent);
+       bt_ctf_field_type_get(element_type);
+       array->element_type = element_type;
+       array->length = length;
+       array->parent.declaration->alignment =
+               element_type->declaration->alignment;
+       return &array->parent;
+error:
+       return NULL;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_sequence_create(
+               struct bt_ctf_field_type *element_type,
+               const char *length_field_name)
+{
+       struct bt_ctf_field_type_sequence *sequence = NULL;
+
+       if (!element_type || validate_identifier(length_field_name)) {
+               goto error;
+       }
+
+       sequence = g_new0(struct bt_ctf_field_type_sequence, 1);
+       if (!sequence) {
+               goto error;
+       }
+
+       sequence->parent.declaration = &sequence->declaration.p;
+       sequence->parent.declaration->id = CTF_TYPE_SEQUENCE;
+       bt_ctf_field_type_init(&sequence->parent);
+       bt_ctf_field_type_get(element_type);
+       sequence->element_type = element_type;
+       sequence->length_field_name = g_string_new(length_field_name);
+       sequence->parent.declaration->alignment =
+               element_type->declaration->alignment;
+       return &sequence->parent;
+error:
+       return NULL;
+}
+
+struct bt_ctf_field_type *bt_ctf_field_type_string_create(void)
+{
+       struct bt_ctf_field_type_string *string =
+               g_new0(struct bt_ctf_field_type_string, 1);
+
+       if (!string) {
+               return NULL;
+       }
+
+       string->parent.declaration = &string->declaration.p;
+       string->parent.declaration->id = CTF_TYPE_STRING;
+       bt_ctf_field_type_init(&string->parent);
+       string->declaration.encoding = CTF_STRING_UTF8;
+       string->parent.declaration->alignment = CHAR_BIT;
+       return &string->parent;
+}
+
+int bt_ctf_field_type_string_set_encoding(
+               struct bt_ctf_field_type *type,
+               enum ctf_string_encoding encoding)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_string *string;
+
+       if (!type || type->declaration->id != CTF_TYPE_STRING ||
+               (encoding != CTF_STRING_UTF8 &&
+               encoding != CTF_STRING_ASCII)) {
+               ret = -1;
+               goto end;
+       }
+
+       string = container_of(type, struct bt_ctf_field_type_string, parent);
+       string->declaration.encoding = encoding;
+end:
+       return ret;
+}
+
+int bt_ctf_field_type_set_alignment(struct bt_ctf_field_type *type,
+               unsigned int alignment)
+{
+       int ret = 0;
+
+       /* Alignment must be bit-aligned (1) or byte aligned */
+       if (!type || type->frozen || (alignment != 1 && (alignment & 0x7))) {
+               ret = -1;
+               goto end;
+       }
+
+       if (type->declaration->id == CTF_TYPE_STRING &&
+               alignment != CHAR_BIT) {
+               ret = -1;
+               goto end;
+       }
+
+       type->declaration->alignment = alignment;
+       ret = 0;
+end:
+       return ret;
+}
+
+int bt_ctf_field_type_set_byte_order(struct bt_ctf_field_type *type,
+               enum bt_ctf_byte_order byte_order)
+{
+       int ret = 0;
+       int internal_byte_order;
+       enum ctf_type_id type_id;
+
+       if (!type || type->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       type_id = type->declaration->id;
+       switch (byte_order) {
+       case BT_CTF_BYTE_ORDER_NATIVE:
+               internal_byte_order = (G_BYTE_ORDER == G_LITTLE_ENDIAN ?
+                       LITTLE_ENDIAN : BIG_ENDIAN);
+               break;
+       case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN:
+               internal_byte_order = LITTLE_ENDIAN;
+               break;
+       case BT_CTF_BYTE_ORDER_BIG_ENDIAN:
+       case BT_CTF_BYTE_ORDER_NETWORK:
+               internal_byte_order = BIG_ENDIAN;
+               break;
+       default:
+               ret = -1;
+               goto end;
+       }
+
+       if (set_byte_order_funcs[type_id]) {
+               set_byte_order_funcs[type_id](type, internal_byte_order);
+       }
+end:
+       return ret;
+}
+
+void bt_ctf_field_type_get(struct bt_ctf_field_type *type)
+{
+       if (!type) {
+               return;
+       }
+
+       bt_ctf_ref_get(&type->ref_count);
+}
+
+void bt_ctf_field_type_put(struct bt_ctf_field_type *type)
+{
+       enum ctf_type_id type_id;
+
+       if (!type) {
+               return;
+       }
+
+       type_id = type->declaration->id;
+       assert(type_id > CTF_TYPE_UNKNOWN && type_id < NR_CTF_TYPES);
+       bt_ctf_ref_put(&type->ref_count, type_destroy_funcs[type_id]);
+}
+
+BT_HIDDEN
+void bt_ctf_field_type_freeze(struct bt_ctf_field_type *type)
+{
+       if (!type) {
+               return;
+       }
+
+       type->freeze(type);
+}
+
+BT_HIDDEN
+enum ctf_type_id bt_ctf_field_type_get_type_id(
+               struct bt_ctf_field_type *type)
+{
+       if (!type) {
+               return CTF_TYPE_UNKNOWN;
+       }
+
+       return type->declaration->id;
+}
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_structure_get_type(
+               struct bt_ctf_field_type_structure *structure,
+               const char *name)
+{
+       struct bt_ctf_field_type *type = NULL;
+       struct structure_field *field;
+       GQuark name_quark = g_quark_try_string(name);
+       size_t index;
+
+       if (!name_quark) {
+               goto end;
+       }
+
+       if (!g_hash_table_lookup_extended(structure->field_name_to_index,
+               GUINT_TO_POINTER(name_quark), NULL, (gpointer *)&index)) {
+               goto end;
+       }
+
+       field = structure->fields->pdata[index];
+       type = field->type;
+end:
+       return type;
+}
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_array_get_element_type(
+               struct bt_ctf_field_type_array *array)
+{
+       assert(array);
+       return array->element_type;
+}
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_sequence_get_element_type(
+               struct bt_ctf_field_type_sequence *sequence)
+{
+       assert(sequence);
+       return sequence->element_type;
+}
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type(
+               struct bt_ctf_field_type_variant *variant,
+               int64_t tag_value)
+{
+       struct bt_ctf_field_type *type = NULL;
+       GQuark field_name_quark;
+       gpointer index;
+       struct structure_field *field_entry;
+       struct range_overlap_query query = {.range_start = tag_value,
+               .range_end = tag_value, .mapping_name = 0, .overlaps = 0};
+
+       g_ptr_array_foreach(variant->tag->entries, check_ranges_overlap,
+               &query);
+       if (!query.overlaps) {
+               goto end;
+       }
+
+       field_name_quark = query.mapping_name;
+       if (!g_hash_table_lookup_extended(variant->field_name_to_index,
+               GUINT_TO_POINTER(field_name_quark), NULL, &index)) {
+               goto end;
+       }
+
+       field_entry = g_ptr_array_index(variant->fields, (size_t)index);
+       type = field_entry->type;
+end:
+       return type;
+}
+
+BT_HIDDEN
+int bt_ctf_field_type_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       int ret;
+
+       if (!type || !context) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = type->serialize(type, context);
+end:
+       return ret;
+}
+
+static
+void bt_ctf_field_type_integer_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_integer *integer;
+
+       if (!ref) {
+               return;
+       }
+
+       integer = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_integer, parent);
+       g_free(integer);
+}
+
+static
+void bt_ctf_field_type_enumeration_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_enumeration *enumeration;
+
+       if (!ref) {
+               return;
+       }
+
+       enumeration = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_enumeration, parent);
+       g_ptr_array_free(enumeration->entries, TRUE);
+       bt_ctf_field_type_put(enumeration->container);
+       g_free(enumeration);
+}
+
+static
+void bt_ctf_field_type_floating_point_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_floating_point *floating_point;
+
+       if (!ref) {
+               return;
+       }
+
+       floating_point = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_floating_point, parent);
+       g_free(floating_point);
+}
+
+static
+void bt_ctf_field_type_structure_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_structure *structure;
+
+       if (!ref) {
+               return;
+       }
+
+       structure = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_structure, parent);
+       g_ptr_array_free(structure->fields, TRUE);
+       g_hash_table_destroy(structure->field_name_to_index);
+       g_free(structure);
+}
+
+static
+void bt_ctf_field_type_variant_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_variant *variant;
+
+       if (!ref) {
+               return;
+       }
+
+       variant = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_variant, parent);
+       g_ptr_array_free(variant->fields, TRUE);
+       g_hash_table_destroy(variant->field_name_to_index);
+       g_string_free(variant->tag_name, TRUE);
+       bt_ctf_field_type_put(&variant->tag->parent);
+       g_free(variant);
+}
+
+static
+void bt_ctf_field_type_array_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_array *array;
+
+       if (!ref) {
+               return;
+       }
+
+       array = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_array, parent);
+       bt_ctf_field_type_put(array->element_type);
+       g_free(array);
+}
+
+static
+void bt_ctf_field_type_sequence_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_sequence *sequence;
+
+       if (!ref) {
+               return;
+       }
+
+       sequence = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_sequence, parent);
+       bt_ctf_field_type_put(sequence->element_type);
+       g_string_free(sequence->length_field_name, TRUE);
+       g_free(sequence);
+}
+
+static
+void bt_ctf_field_type_string_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_field_type_string *string;
+
+       if (!ref) {
+               return;
+       }
+
+       string = container_of(
+               container_of(ref, struct bt_ctf_field_type, ref_count),
+               struct bt_ctf_field_type_string, parent);
+       g_free(string);
+}
+
+static
+void generic_field_type_freeze(struct bt_ctf_field_type *type)
+{
+       type->frozen = 1;
+}
+
+static
+void bt_ctf_field_type_enumeration_freeze(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_enumeration *enumeration_type = container_of(
+               type, struct bt_ctf_field_type_enumeration, parent);
+
+       generic_field_type_freeze(type);
+       bt_ctf_field_type_freeze(enumeration_type->container);
+}
+
+static
+void freeze_structure_field(struct structure_field *field)
+{
+       bt_ctf_field_type_freeze(field->type);
+}
+
+static
+void bt_ctf_field_type_structure_freeze(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_structure *structure_type = container_of(
+               type, struct bt_ctf_field_type_structure, parent);
+
+       generic_field_type_freeze(type);
+       g_ptr_array_foreach(structure_type->fields, (GFunc)freeze_structure_field,
+               NULL);
+}
+
+static
+void bt_ctf_field_type_variant_freeze(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_variant *variant_type = container_of(
+               type, struct bt_ctf_field_type_variant, parent);
+
+       generic_field_type_freeze(type);
+       g_ptr_array_foreach(variant_type->fields, (GFunc)freeze_structure_field,
+               NULL);
+}
+
+static
+void bt_ctf_field_type_array_freeze(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_array *array_type = container_of(
+               type, struct bt_ctf_field_type_array, parent);
+
+       generic_field_type_freeze(type);
+       bt_ctf_field_type_freeze(array_type->element_type);
+}
+
+static
+void bt_ctf_field_type_sequence_freeze(struct bt_ctf_field_type *type)
+{
+       struct bt_ctf_field_type_sequence *sequence_type = container_of(
+               type, struct bt_ctf_field_type_sequence, parent);
+
+       generic_field_type_freeze(type);
+       bt_ctf_field_type_freeze(sequence_type->element_type);
+}
+
+static
+const char *get_encoding_string(enum ctf_string_encoding encoding)
+{
+       const char *encoding_string;
+
+       switch (encoding) {
+       case CTF_STRING_NONE:
+               encoding_string = "none";
+               break;
+       case CTF_STRING_ASCII:
+               encoding_string = "ASCII";
+               break;
+       case CTF_STRING_UTF8:
+               encoding_string = "UTF8";
+               break;
+       default:
+               encoding_string = "unknown";
+               break;
+       }
+
+       return encoding_string;
+}
+
+static
+const char *get_integer_base_string(enum bt_ctf_integer_base base)
+{
+       const char *base_string;
+
+       switch (base) {
+       case BT_CTF_INTEGER_BASE_DECIMAL:
+               base_string = "decimal";
+               break;
+       case BT_CTF_INTEGER_BASE_HEXADECIMAL:
+               base_string = "hexadecimal";
+               break;
+       case BT_CTF_INTEGER_BASE_OCTAL:
+               base_string = "octal";
+               break;
+       case BT_CTF_INTEGER_BASE_BINARY:
+               base_string = "binary";
+               break;
+       default:
+               base_string = "unknown";
+               break;
+       }
+
+       return base_string;
+}
+
+static
+int bt_ctf_field_type_integer_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       struct bt_ctf_field_type_integer *integer = container_of(type,
+               struct bt_ctf_field_type_integer, parent);
+
+       g_string_append_printf(context->string,
+               "integer { size = %zu; align = %zu; signed = %s; encoding = %s; base = %s; byte_order = %s; }",
+               integer->declaration.len, type->declaration->alignment,
+               (integer->declaration.signedness ? "true" : "false"),
+               get_encoding_string(integer->declaration.encoding),
+               get_integer_base_string(integer->declaration.base),
+               get_byte_order_string(integer->declaration.byte_order));
+       return 0;
+}
+
+static
+int bt_ctf_field_type_enumeration_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       size_t entry;
+       int ret = 0;
+       struct bt_ctf_field_type_enumeration *enumeration = container_of(type,
+               struct bt_ctf_field_type_enumeration, parent);
+
+       g_string_append(context->string, "enum : ");
+       ret = bt_ctf_field_type_serialize(enumeration->container, context);
+       if (ret) {
+               goto end;
+       }
+
+       g_string_append(context->string, " { ");
+       for (entry = 0; entry < enumeration->entries->len; entry++) {
+               struct enumeration_mapping *mapping =
+                       enumeration->entries->pdata[entry];
+
+               if (mapping->range_start == mapping->range_end) {
+                       g_string_append_printf(context->string, "%s = %" PRId64,
+                               g_quark_to_string(mapping->string),
+                               mapping->range_start);
+               } else {
+                       g_string_append_printf(context->string,
+                               "%s = %" PRId64 " ... %" PRId64,
+                               g_quark_to_string(mapping->string),
+                               mapping->range_start, mapping->range_end);
+               }
+
+               g_string_append(context->string,
+                       ((entry != (enumeration->entries->len - 1)) ?
+                       ", " : " }"));
+       }
+
+       if (context->field_name->len) {
+               g_string_append_printf(context->string, " %s",
+                       context->field_name->str);
+               g_string_assign(context->field_name, "");
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_type_floating_point_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       struct bt_ctf_field_type_floating_point *floating_point = container_of(
+               type, struct bt_ctf_field_type_floating_point, parent);
+
+       g_string_append_printf(context->string,
+               "floating_point { exp_dig = %zu; mant_dig = %zu; byte_order = %s; align = %zu; }",
+               floating_point->declaration.exp->len,
+               floating_point->declaration.mantissa->len + 1,
+               get_byte_order_string(floating_point->declaration.byte_order),
+               type->declaration->alignment);
+       return 0;
+}
+
+static
+int bt_ctf_field_type_structure_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       size_t i;
+       unsigned int indent;
+       int ret = 0;
+       struct bt_ctf_field_type_structure *structure = container_of(type,
+               struct bt_ctf_field_type_structure, parent);
+       GString *structure_field_name = context->field_name;
+
+       context->field_name = g_string_new("");
+
+       context->current_indentation_level++;
+       g_string_append(context->string, "struct {\n");
+
+       for (i = 0; i < structure->fields->len; i++) {
+               struct structure_field *field;
+
+               for (indent = 0; indent < context->current_indentation_level;
+                       indent++) {
+                       g_string_append_c(context->string, '\t');
+               }
+
+               field = structure->fields->pdata[i];
+               g_string_assign(context->field_name,
+                       g_quark_to_string(field->name));
+               ret = bt_ctf_field_type_serialize(field->type, context);
+               if (ret) {
+                       goto end;
+               }
+
+               if (context->field_name->len) {
+                       g_string_append_printf(context->string, " %s",
+                               context->field_name->str);
+               }
+               g_string_append(context->string, ";\n");
+       }
+
+       context->current_indentation_level--;
+       for (indent = 0; indent < context->current_indentation_level;
+               indent++) {
+               g_string_append_c(context->string, '\t');
+       }
+
+       g_string_append_printf(context->string, "} align(%zu)",
+                type->declaration->alignment);
+end:
+       g_string_free(context->field_name, TRUE);
+       context->field_name = structure_field_name;
+       return ret;
+}
+
+static
+int bt_ctf_field_type_variant_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       size_t i;
+       unsigned int indent;
+       int ret = 0;
+       struct bt_ctf_field_type_variant *variant = container_of(
+               type, struct bt_ctf_field_type_variant, parent);
+       GString *variant_field_name = context->field_name;
+
+       context->field_name = g_string_new("");
+       g_string_append_printf(context->string,
+               "variant <%s> {\n", variant->tag_name->str);
+       context->current_indentation_level++;
+       for (i = 0; i < variant->fields->len; i++) {
+               struct structure_field *field = variant->fields->pdata[i];
+
+               g_string_assign(context->field_name,
+                       g_quark_to_string(field->name));
+               for (indent = 0; indent < context->current_indentation_level;
+                       indent++) {
+                       g_string_append_c(context->string, '\t');
+               }
+
+               g_string_assign(context->field_name,
+                       g_quark_to_string(field->name));
+               ret = bt_ctf_field_type_serialize(field->type, context);
+               if (ret) {
+                       goto end;
+               }
+
+               if (context->field_name->len) {
+                       g_string_append_printf(context->string, " %s;",
+                               context->field_name->str);
+               }
+
+               g_string_append_c(context->string, '\n');
+       }
+
+       context->current_indentation_level--;
+       for (indent = 0; indent < context->current_indentation_level;
+               indent++) {
+               g_string_append_c(context->string, '\t');
+       }
+
+       g_string_append(context->string, "}");
+end:
+       g_string_free(context->field_name, TRUE);
+       context->field_name = variant_field_name;
+       return ret;
+}
+
+static
+int bt_ctf_field_type_array_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_array *array = container_of(type,
+               struct bt_ctf_field_type_array, parent);
+
+       ret = bt_ctf_field_type_serialize(array->element_type, context);
+       if (ret) {
+               goto end;
+       }
+
+       if (context->field_name->len) {
+               g_string_append_printf(context->string, " %s[%u]",
+                       context->field_name->str, array->length);
+               g_string_assign(context->field_name, "");
+       } else {
+               g_string_append_printf(context->string, "[%u]", array->length);
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_type_sequence_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       int ret = 0;
+       struct bt_ctf_field_type_sequence *sequence = container_of(
+               type, struct bt_ctf_field_type_sequence, parent);
+
+       ret = bt_ctf_field_type_serialize(sequence->element_type, context);
+       if (ret) {
+               goto end;
+       }
+
+       if (context->field_name->len) {
+               g_string_append_printf(context->string, " %s[%s]",
+                       context->field_name->str,
+                       sequence->length_field_name->str);
+               g_string_assign(context->field_name, "");
+       } else {
+               g_string_append_printf(context->string, "[%s]",
+                       sequence->length_field_name->str);
+       }
+end:
+       return ret;
+}
+
+static
+int bt_ctf_field_type_string_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context)
+{
+       struct bt_ctf_field_type_string *string = container_of(
+               type, struct bt_ctf_field_type_string, parent);
+
+       g_string_append_printf(context->string,
+               "string { encoding = %s; }",
+               get_encoding_string(string->declaration.encoding));
+       return 0;
+}
+
+static
+void bt_ctf_field_type_integer_set_byte_order(struct bt_ctf_field_type *type,
+               int byte_order)
+{
+       struct bt_ctf_field_type_integer *integer_type = container_of(type,
+               struct bt_ctf_field_type_integer, parent);
+
+       integer_type->declaration.byte_order = byte_order;
+}
+
+static
+void bt_ctf_field_type_floating_point_set_byte_order(
+               struct bt_ctf_field_type *type, int byte_order)
+{
+       struct bt_ctf_field_type_floating_point *floating_point_type =
+               container_of(type, struct bt_ctf_field_type_floating_point,
+               parent);
+
+       floating_point_type->declaration.byte_order = byte_order;
+       floating_point_type->sign.byte_order = byte_order;
+       floating_point_type->mantissa.byte_order = byte_order;
+       floating_point_type->exp.byte_order = byte_order;
+}
diff --git a/formats/ctf/writer/event.c b/formats/ctf/writer/event.c
new file mode 100644 (file)
index 0000000..c7f1b22
--- /dev/null
@@ -0,0 +1,368 @@
+/*
+ * event.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/event.h>
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/ctf-writer/event-fields-internal.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/ctf-writer/event-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/compiler.h>
+
+static
+void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref);
+static
+void bt_ctf_event_destroy(struct bt_ctf_ref *ref);
+
+struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
+{
+       struct bt_ctf_event_class *event_class = NULL;
+
+       if (validate_identifier(name)) {
+               goto end;
+       }
+
+       event_class = g_new0(struct bt_ctf_event_class, 1);
+       if (!event_class) {
+               goto end;
+       }
+
+       bt_ctf_ref_init(&event_class->ref_count);
+       event_class->name = g_quark_from_string(name);
+end:
+       return event_class;
+}
+
+int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
+               struct bt_ctf_field_type *type,
+               const char *name)
+{
+       int ret = 0;
+
+       if (!event_class || !type || validate_identifier(name) ||
+               event_class->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       if (!event_class->fields) {
+               event_class->fields = bt_ctf_field_type_structure_create();
+               if (!event_class->fields) {
+                       ret = -1;
+                       goto end;
+               }
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(event_class->fields,
+               type, name);
+end:
+       return ret;
+}
+
+void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
+{
+       if (!event_class) {
+               return;
+       }
+
+       bt_ctf_ref_get(&event_class->ref_count);
+}
+
+void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
+{
+       if (!event_class) {
+               return;
+       }
+
+       bt_ctf_ref_put(&event_class->ref_count, bt_ctf_event_class_destroy);
+}
+
+struct bt_ctf_event *bt_ctf_event_create(struct bt_ctf_event_class *event_class)
+{
+       struct bt_ctf_event *event = NULL;
+
+       if (!event_class) {
+               goto end;
+       }
+
+       event = g_new0(struct bt_ctf_event, 1);
+       if (!event) {
+               goto end;
+       }
+
+       bt_ctf_ref_init(&event->ref_count);
+       bt_ctf_event_class_get(event_class);
+       bt_ctf_event_class_freeze(event_class);
+       event->event_class = event_class;
+       event->context_payload = bt_ctf_field_create(event_class->context);
+       event->fields_payload = bt_ctf_field_create(event_class->fields);
+end:
+       return event;
+}
+
+int bt_ctf_event_set_payload(struct bt_ctf_event *event,
+               const char *name,
+               struct bt_ctf_field *value)
+{
+       int ret = 0;
+
+       if (!event || !value || validate_identifier(name)) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_field_structure_set_field(event->fields_payload,
+               name, value);
+end:
+       return ret;
+}
+
+
+struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
+               const char *name)
+{
+       struct bt_ctf_field *field = NULL;
+
+       if (!event || !name) {
+               goto end;
+       }
+
+       field = bt_ctf_field_structure_get_field(event->fields_payload, name);
+end:
+       return field;
+}
+
+void bt_ctf_event_get(struct bt_ctf_event *event)
+{
+       if (!event) {
+               return;
+       }
+
+       bt_ctf_ref_get(&event->ref_count);
+}
+
+void bt_ctf_event_put(struct bt_ctf_event *event)
+{
+       if (!event) {
+               return;
+       }
+
+       bt_ctf_ref_put(&event->ref_count, bt_ctf_event_destroy);
+}
+
+static
+void bt_ctf_event_class_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_event_class *event_class;
+
+       if (!ref) {
+               return;
+       }
+
+       event_class = container_of(ref, struct bt_ctf_event_class, ref_count);
+       bt_ctf_field_type_put(event_class->context);
+       bt_ctf_field_type_put(event_class->fields);
+       g_free(event_class);
+}
+
+static
+void bt_ctf_event_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_event *event;
+
+       if (!ref) {
+               return;
+       }
+
+       event = container_of(ref, struct bt_ctf_event,
+               ref_count);
+       bt_ctf_event_class_put(event->event_class);
+       bt_ctf_field_put(event->context_payload);
+       bt_ctf_field_put(event->fields_payload);
+       g_free(event);
+}
+
+BT_HIDDEN
+void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
+{
+       assert(event_class);
+       event_class->frozen = 1;
+       bt_ctf_field_type_freeze(event_class->context);
+       bt_ctf_field_type_freeze(event_class->fields);
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
+               uint32_t id)
+{
+       int ret = 0;
+
+       if (event_class->id_set && id != event_class->id) {
+               ret = -1;
+               goto end;
+       }
+
+       event_class->id = id;
+       event_class->id_set = 1;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+uint32_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
+{
+       assert(event_class);
+       return event_class->id;
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
+               uint32_t id)
+{
+       int ret = 0;
+
+       assert(event_class);
+       if (event_class->stream_id_set && id != event_class->stream_id) {
+               ret = -1;
+               goto end;
+       }
+
+       event_class->stream_id = id;
+       event_class->stream_id_set = 1;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
+               struct metadata_context *context)
+{
+       int ret = 0;
+
+       assert(event_class);
+       assert(context);
+       context->current_indentation_level = 1;
+       g_string_assign(context->field_name, "");
+       g_string_append_printf(context->string, "event {\n\tname = \"%s\";\n\tid = %u;\n\tstream_id = %" PRIu32 ";\n",
+               g_quark_to_string(event_class->name),
+               event_class->id,
+               event_class->stream_id);
+
+       if (event_class->context) {
+               g_string_append(context->string, "\tcontext := ");
+               ret = bt_ctf_field_type_serialize(event_class->context,
+                       context);
+               if (ret) {
+                       goto end;
+               }
+               g_string_append(context->string, ";\n");
+       }
+
+       if (event_class->fields) {
+               g_string_append(context->string, "\tfields := ");
+               ret = bt_ctf_field_type_serialize(event_class->fields, context);
+               if (ret) {
+                       goto end;
+               }
+               g_string_append(context->string, ";\n");
+       }
+
+       g_string_append(context->string, "};\n\n");
+end:
+       context->current_indentation_level = 0;
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_validate(struct bt_ctf_event *event)
+{
+       /* Make sure each field's payload has been set */
+       int ret;
+
+       assert(event);
+       ret = bt_ctf_field_validate(event->fields_payload);
+       if (ret) {
+               goto end;
+       }
+
+       if (event->event_class->context) {
+               ret = bt_ctf_field_validate(event->context_payload);
+       }
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_serialize(struct bt_ctf_event *event,
+               struct ctf_stream_pos *pos)
+{
+       int ret = 0;
+
+       assert(event);
+       assert(pos);
+       if (event->context_payload) {
+               ret = bt_ctf_field_serialize(event->context_payload, pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+
+       if (event->fields_payload) {
+               ret = bt_ctf_field_serialize(event->fields_payload, pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_event_set_timestamp(struct bt_ctf_event *event,
+               uint64_t timestamp)
+{
+       int ret = 0;
+
+       assert(event);
+       if (event->timestamp) {
+               ret = -1;
+               goto end;
+       }
+
+       event->timestamp = timestamp;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+uint64_t bt_ctf_event_get_timestamp(struct bt_ctf_event *event)
+{
+       assert(event);
+       return event->timestamp;
+}
diff --git a/formats/ctf/writer/functor.c b/formats/ctf/writer/functor.c
new file mode 100644 (file)
index 0000000..9c932cf
--- /dev/null
@@ -0,0 +1,38 @@
+/*
+ * functor.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <glib.h>
+#include <babeltrace/ctf-writer/functor-internal.h>
+
+BT_HIDDEN
+void value_exists(gpointer element, gpointer search_query)
+{
+       if (element == ((struct search_query *)search_query)->value) {
+               ((struct search_query *)search_query)->found = 1;
+       }
+}
diff --git a/formats/ctf/writer/stream.c b/formats/ctf/writer/stream.c
new file mode 100644 (file)
index 0000000..f03f170
--- /dev/null
@@ -0,0 +1,697 @@
+/*
+ * stream.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/clock.h>
+#include <babeltrace/ctf-writer/clock-internal.h>
+#include <babeltrace/ctf-writer/event.h>
+#include <babeltrace/ctf-writer/event-internal.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/ctf-writer/event-fields-internal.h>
+#include <babeltrace/ctf-writer/stream.h>
+#include <babeltrace/ctf-writer/stream-internal.h>
+#include <babeltrace/ctf-writer/functor-internal.h>
+#include <babeltrace/compiler.h>
+#include <babeltrace/align.h>
+
+static
+void bt_ctf_stream_destroy(struct bt_ctf_ref *ref);
+static
+void bt_ctf_stream_class_destroy(struct bt_ctf_ref *ref);
+static
+int init_event_header(struct bt_ctf_stream_class *stream_class,
+               enum bt_ctf_byte_order byte_order);
+static
+int init_packet_context(struct bt_ctf_stream_class *stream_class,
+               enum bt_ctf_byte_order byte_order);
+static
+int set_structure_field_integer(struct bt_ctf_field *, char *, uint64_t);
+
+struct bt_ctf_stream_class *bt_ctf_stream_class_create(const char *name)
+{
+       struct bt_ctf_stream_class *stream_class = NULL;
+
+       if (!name || !strlen(name)) {
+               goto error;
+       }
+
+       stream_class = g_new0(struct bt_ctf_stream_class, 1);
+       if (!stream_class) {
+               goto error;
+       }
+
+       stream_class->name = g_string_new(name);
+       stream_class->event_classes = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_event_class_put);
+       if (!stream_class->event_classes) {
+               goto error_destroy;
+       }
+
+       bt_ctf_ref_init(&stream_class->ref_count);
+       return stream_class;
+
+error_destroy:
+       bt_ctf_stream_class_destroy(&stream_class->ref_count);
+       stream_class = NULL;
+error:
+       return stream_class;
+}
+
+int bt_ctf_stream_class_set_clock(struct bt_ctf_stream_class *stream_class,
+               struct bt_ctf_clock *clock)
+{
+       int ret = 0;
+
+       if (!stream_class || !clock || stream_class->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       if (stream_class->clock) {
+               bt_ctf_clock_put(stream_class->clock);
+       }
+
+       stream_class->clock = clock;
+       bt_ctf_clock_get(clock);
+end:
+       return ret;
+}
+
+int bt_ctf_stream_class_add_event_class(
+               struct bt_ctf_stream_class *stream_class,
+               struct bt_ctf_event_class *event_class)
+{
+       int ret = 0;
+
+       if (!stream_class || !event_class) {
+               ret = -1;
+               goto end;
+       }
+
+       /* Check for duplicate event classes */
+       struct search_query query = { .value = event_class, .found = 0 };
+       g_ptr_array_foreach(stream_class->event_classes, value_exists, &query);
+       if (query.found) {
+               ret = -1;
+               goto end;
+       }
+
+       if (bt_ctf_event_class_set_id(event_class,
+               stream_class->next_event_id++)) {
+               /* The event is already associated to a stream class */
+               ret = -1;
+               goto end;
+       }
+
+       bt_ctf_event_class_get(event_class);
+       g_ptr_array_add(stream_class->event_classes, event_class);
+end:
+       return ret;
+}
+
+void bt_ctf_stream_class_get(struct bt_ctf_stream_class *stream_class)
+{
+       if (!stream_class) {
+               return;
+       }
+
+       bt_ctf_ref_get(&stream_class->ref_count);
+}
+
+void bt_ctf_stream_class_put(struct bt_ctf_stream_class *stream_class)
+{
+       if (!stream_class) {
+               return;
+       }
+
+       bt_ctf_ref_put(&stream_class->ref_count, bt_ctf_stream_class_destroy);
+}
+
+BT_HIDDEN
+void bt_ctf_stream_class_freeze(struct bt_ctf_stream_class *stream_class)
+{
+       if (!stream_class) {
+               return;
+       }
+
+       stream_class->frozen = 1;
+       bt_ctf_clock_freeze(stream_class->clock);
+       g_ptr_array_foreach(stream_class->event_classes,
+               (GFunc)bt_ctf_event_class_freeze, NULL);
+}
+
+BT_HIDDEN
+int bt_ctf_stream_class_set_id(struct bt_ctf_stream_class *stream_class,
+       uint32_t id)
+{
+       int ret = 0;
+
+       if (!stream_class ||
+               (stream_class->id_set && (id != stream_class->id))) {
+               ret = -1;
+               goto end;
+       }
+
+       stream_class->id = id;
+       stream_class->id_set = 1;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_stream_class_set_byte_order(struct bt_ctf_stream_class *stream_class,
+       enum bt_ctf_byte_order byte_order)
+{
+       int ret = 0;
+
+       ret = init_packet_context(stream_class, byte_order);
+       if (ret) {
+               goto end;
+       }
+
+       ret = init_event_header(stream_class, byte_order);
+       if (ret) {
+               goto end;
+       }
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_stream_class_serialize(struct bt_ctf_stream_class *stream_class,
+               struct metadata_context *context)
+{
+       int ret = 0;
+       size_t i;
+
+       g_string_assign(context->field_name, "");
+       context->current_indentation_level = 1;
+       if (!stream_class->id_set) {
+               ret = -1;
+               goto end;
+       }
+
+       g_string_append_printf(context->string,
+               "stream {\n\tid = %" PRIu32 ";\n\tevent.header := ",
+               stream_class->id);
+       ret = bt_ctf_field_type_serialize(stream_class->event_header_type,
+               context);
+       if (ret) {
+               goto end;
+       }
+
+       g_string_append(context->string, ";\n\n\tpacket.context := ");
+       ret = bt_ctf_field_type_serialize(stream_class->packet_context_type,
+               context);
+       if (ret) {
+               goto end;
+       }
+
+       if (stream_class->event_context_type) {
+               g_string_append(context->string, ";\n\n\tevent.context := ");
+               ret = bt_ctf_field_type_serialize(
+                       stream_class->event_context_type, context);
+               if (ret) {
+                       goto end;
+               }
+       }
+
+       g_string_append(context->string, ";\n};\n\n");
+
+       /* Assign this stream's ID to every event and serialize them */
+       g_ptr_array_foreach(stream_class->event_classes,
+               (GFunc) bt_ctf_event_class_set_stream_id,
+               GUINT_TO_POINTER(stream_class->id));
+       for (i = 0; i < stream_class->event_classes->len; i++) {
+               struct bt_ctf_event_class *event_class =
+                       stream_class->event_classes->pdata[i];
+
+               ret = bt_ctf_event_class_set_stream_id(event_class,
+                       stream_class->id);
+               if (ret) {
+                       goto end;
+               }
+
+               ret = bt_ctf_event_class_serialize(event_class, context);
+               if (ret) {
+                       goto end;
+               }
+       }
+end:
+       context->current_indentation_level = 0;
+       return ret;
+}
+
+BT_HIDDEN
+struct bt_ctf_stream *bt_ctf_stream_create(
+               struct bt_ctf_stream_class *stream_class)
+{
+       struct bt_ctf_stream *stream = NULL;
+
+       if (!stream_class) {
+               goto end;
+       }
+
+       stream = g_new0(struct bt_ctf_stream, 1);
+       if (!stream) {
+               goto end;
+       }
+
+       bt_ctf_ref_init(&stream->ref_count);
+       stream->pos.fd = -1;
+       stream->id = stream_class->next_stream_id++;
+       stream->stream_class = stream_class;
+       bt_ctf_stream_class_get(stream_class);
+       bt_ctf_stream_class_freeze(stream_class);
+       stream->events = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_event_put);
+end:
+       return stream;
+}
+
+BT_HIDDEN
+int bt_ctf_stream_set_flush_callback(struct bt_ctf_stream *stream,
+       flush_func callback, void *data)
+{
+       int ret = stream ? 0 : -1;
+
+       if (!stream) {
+               goto end;
+       }
+
+       stream->flush.func = callback;
+       stream->flush.data = data;
+end:
+       return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd)
+{
+       int ret = 0;
+
+       if (stream->pos.fd != -1) {
+               ret = -1;
+               goto end;
+       }
+
+       ctf_init_pos(&stream->pos, NULL, fd, O_RDWR);
+       stream->pos.fd = fd;
+end:
+       return ret;
+}
+
+void bt_ctf_stream_append_discarded_events(struct bt_ctf_stream *stream,
+               uint64_t event_count)
+{
+       if (!stream) {
+               return;
+       }
+
+       stream->events_discarded += event_count;
+}
+
+int bt_ctf_stream_append_event(struct bt_ctf_stream *stream,
+               struct bt_ctf_event *event)
+{
+       int ret = 0;
+       uint64_t timestamp;
+
+       if (!stream || !event) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_event_validate(event);
+       if (ret) {
+               goto end;
+       }
+
+       timestamp = bt_ctf_clock_get_time(stream->stream_class->clock);
+       ret = bt_ctf_event_set_timestamp(event, timestamp);
+       if (ret) {
+               goto end;
+       }
+
+       bt_ctf_event_get(event);
+       g_ptr_array_add(stream->events, event);
+end:
+       return ret;
+}
+
+int bt_ctf_stream_flush(struct bt_ctf_stream *stream)
+{
+       int ret = 0;
+       size_t i;
+       uint64_t timestamp_begin, timestamp_end;
+       struct bt_ctf_stream_class *stream_class = stream->stream_class;
+       struct bt_ctf_field *integer = NULL;
+       struct ctf_stream_pos packet_context_pos;
+
+       if (!stream) {
+               ret = -1;
+               goto end;
+       }
+
+       if (!stream->events->len) {
+               goto end;
+       }
+
+       if (stream->flush.func) {
+               stream->flush.func(stream, stream->flush.data);
+       }
+
+       timestamp_begin = ((struct bt_ctf_event *) g_ptr_array_index(
+               stream->events, 0))->timestamp;
+       timestamp_end = ((struct bt_ctf_event *) g_ptr_array_index(
+               stream->events, stream->events->len - 1))->timestamp;
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "timestamp_begin", timestamp_begin);
+       if (ret) {
+               goto end;
+       }
+
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "timestamp_end", timestamp_end);
+       if (ret) {
+               goto end;
+       }
+
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "events_discarded", stream->events_discarded);
+       if (ret) {
+               goto end;
+       }
+
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "content_size", UINT64_MAX);
+       if (ret) {
+               goto end;
+       }
+
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "packet_size", UINT64_MAX);
+       if (ret) {
+               goto end;
+       }
+
+       /* Write packet context */
+       memcpy(&packet_context_pos, &stream->pos,
+              sizeof(struct ctf_stream_pos));
+       ret = bt_ctf_field_serialize(stream_class->packet_context,
+               &stream->pos);
+       if (ret) {
+               goto end;
+       }
+
+       for (i = 0; i < stream->events->len; i++) {
+               struct bt_ctf_event *event = g_ptr_array_index(
+                       stream->events, i);
+               uint32_t event_id = bt_ctf_event_class_get_id(
+                       event->event_class);
+               uint64_t timestamp = bt_ctf_event_get_timestamp(event);
+
+               ret = set_structure_field_integer(stream_class->event_header,
+                       "id", event_id);
+               if (ret) {
+                       goto end;
+               }
+               ret = set_structure_field_integer(stream_class->event_header,
+                       "timestamp", timestamp);
+               if (ret) {
+                       goto end;
+               }
+
+               /* Write event header */
+               ret = bt_ctf_field_serialize(stream_class->event_header,
+                       &stream->pos);
+               if (ret) {
+                       goto end;
+               }
+
+               /* Write event content */
+               ret = bt_ctf_event_serialize(event, &stream->pos);
+               if (ret) {
+                       goto end;
+               }
+       }
+
+       /*
+        * Update the packet total size and content size and overwrite the
+        * packet context.
+        */
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "content_size", stream->pos.offset);
+       if (ret) {
+               goto end;
+       }
+
+       ret = set_structure_field_integer(stream_class->packet_context,
+               "packet_size", stream->pos.packet_size);
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_serialize(stream_class->packet_context,
+               &packet_context_pos);
+       if (ret) {
+               goto end;
+       }
+
+       g_ptr_array_set_size(stream->events, 0);
+       stream->flushed_packet_count++;
+end:
+       bt_ctf_field_put(integer);
+       return ret;
+}
+
+void bt_ctf_stream_get(struct bt_ctf_stream *stream)
+{
+       if (!stream) {
+               return;
+       }
+
+       bt_ctf_ref_get(&stream->ref_count);
+}
+
+void bt_ctf_stream_put(struct bt_ctf_stream *stream)
+{
+       if (!stream) {
+               return;
+       }
+
+       bt_ctf_ref_put(&stream->ref_count, bt_ctf_stream_destroy);
+}
+
+static
+void bt_ctf_stream_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_stream *stream;
+
+       if (!ref) {
+               return;
+       }
+
+       stream = container_of(ref, struct bt_ctf_stream, ref_count);
+       ctf_fini_pos(&stream->pos);
+       close(stream->pos.fd);
+       bt_ctf_stream_class_put(stream->stream_class);
+       g_ptr_array_free(stream->events, TRUE);
+       g_free(stream);
+}
+
+static
+void bt_ctf_stream_class_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_stream_class *stream_class;
+
+       if (!ref) {
+               return;
+       }
+
+       stream_class = container_of(ref, struct bt_ctf_stream_class, ref_count);
+       bt_ctf_clock_put(stream_class->clock);
+
+       if (stream_class->event_classes) {
+               g_ptr_array_free(stream_class->event_classes, TRUE);
+       }
+
+       if (stream_class->name) {
+               g_string_free(stream_class->name, TRUE);
+       }
+
+       bt_ctf_field_type_put(stream_class->event_header_type);
+       bt_ctf_field_put(stream_class->event_header);
+       bt_ctf_field_type_put(stream_class->packet_context_type);
+       bt_ctf_field_put(stream_class->packet_context);
+       bt_ctf_field_type_put(stream_class->event_context_type);
+       bt_ctf_field_put(stream_class->event_context);
+       g_free(stream_class);
+}
+
+static
+int init_event_header(struct bt_ctf_stream_class *stream_class,
+               enum bt_ctf_byte_order byte_order)
+{
+       int ret = 0;
+       struct bt_ctf_field_type *event_header_type =
+               bt_ctf_field_type_structure_create();
+       struct bt_ctf_field_type *_uint32_t =
+               get_field_type(FIELD_TYPE_ALIAS_UINT32_T);
+       struct bt_ctf_field_type *_uint64_t =
+               get_field_type(FIELD_TYPE_ALIAS_UINT64_T);
+
+       if (!event_header_type) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_set_byte_order(_uint32_t, byte_order);
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_set_byte_order(_uint64_t, byte_order);
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(event_header_type,
+               _uint32_t, "id");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(event_header_type,
+               _uint64_t, "timestamp");
+       if (ret) {
+               goto end;
+       }
+
+       stream_class->event_header_type = event_header_type;
+       stream_class->event_header = bt_ctf_field_create(
+               stream_class->event_header_type);
+       if (!stream_class->event_header) {
+               ret = -1;
+       }
+end:
+       if (ret) {
+               bt_ctf_field_type_put(event_header_type);
+       }
+
+       bt_ctf_field_type_put(_uint32_t);
+       bt_ctf_field_type_put(_uint64_t);
+       return ret;
+}
+
+static
+int init_packet_context(struct bt_ctf_stream_class *stream_class,
+               enum bt_ctf_byte_order byte_order)
+{
+       int ret = 0;
+       struct bt_ctf_field_type *packet_context_type =
+               bt_ctf_field_type_structure_create();
+       struct bt_ctf_field_type *_uint64_t =
+               get_field_type(FIELD_TYPE_ALIAS_UINT64_T);
+
+       if (!packet_context_type) {
+               ret = -1;
+               goto end;
+       }
+
+       /*
+        * We create a stream packet context as proposed in the CTF
+        * specification.
+        */
+       ret = bt_ctf_field_type_set_byte_order(_uint64_t, byte_order);
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               _uint64_t, "timestamp_begin");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               _uint64_t, "timestamp_end");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               _uint64_t, "content_size");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               _uint64_t, "packet_size");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(packet_context_type,
+               _uint64_t, "events_discarded");
+       if (ret) {
+               goto end;
+       }
+
+       stream_class->packet_context_type = packet_context_type;
+       stream_class->packet_context = bt_ctf_field_create(packet_context_type);
+       if (!stream_class->packet_context) {
+               ret = -1;
+       }
+end:
+       if (ret) {
+               bt_ctf_field_type_put(packet_context_type);
+               goto end;
+       }
+
+       bt_ctf_field_type_put(_uint64_t);
+       return ret;
+}
+
+static
+int set_structure_field_integer(struct bt_ctf_field *structure, char *name,
+               uint64_t value)
+{
+       int ret = 0;
+
+       struct bt_ctf_field *integer =
+               bt_ctf_field_structure_get_field(structure, name);
+       if (!integer) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_field_unsigned_integer_set_value(integer, value);
+end:
+       bt_ctf_field_put(integer);
+       return ret;
+}
diff --git a/formats/ctf/writer/writer.c b/formats/ctf/writer/writer.c
new file mode 100644 (file)
index 0000000..7490715
--- /dev/null
@@ -0,0 +1,744 @@
+/*
+ * writer.c
+ *
+ * Babeltrace CTF Writer
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/writer.h>
+#include <babeltrace/ctf-writer/clock.h>
+#include <babeltrace/ctf-writer/clock-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/ctf-writer/event-types-internal.h>
+#include <babeltrace/ctf-writer/event-fields-internal.h>
+#include <babeltrace/ctf-writer/functor-internal.h>
+#include <babeltrace/ctf-writer/stream-internal.h>
+#include <babeltrace/ctf-writer/stream.h>
+#include <babeltrace/compiler.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <inttypes.h>
+
+#define DEFAULT_IDENTIFIER_SIZE 128
+#define DEFAULT_METADATA_STRING_SIZE 4096
+
+static
+void environment_variable_destroy(struct environment_variable *var);
+static
+void bt_ctf_writer_destroy(struct bt_ctf_ref *ref);
+static
+int init_trace_packet_header(struct bt_ctf_writer *writer);
+static
+int create_stream_file(struct bt_ctf_writer *writer,
+               struct bt_ctf_stream *stream);
+static
+void stream_flush_cb(struct bt_ctf_stream *stream,
+               struct bt_ctf_writer *writer);
+
+static
+const char * const reserved_keywords_str[] = {"align", "callsite",
+       "const", "char", "clock", "double", "enum", "env", "event",
+       "floating_point", "float", "integer", "int", "long", "short", "signed",
+       "stream", "string", "struct", "trace", "typealias", "typedef",
+       "unsigned", "variant", "void" "_Bool", "_Complex", "_Imaginary"};
+
+static
+const unsigned int field_type_aliases_alignments[] = {
+       [FIELD_TYPE_ALIAS_UINT5_T] = 1,
+       [FIELD_TYPE_ALIAS_UINT8_T ... FIELD_TYPE_ALIAS_UINT16_T] = 8,
+       [FIELD_TYPE_ALIAS_UINT27_T] = 1,
+       [FIELD_TYPE_ALIAS_UINT32_T ... FIELD_TYPE_ALIAS_UINT64_T] = 8,
+};
+
+static
+const unsigned int field_type_aliases_sizes[] = {
+       [FIELD_TYPE_ALIAS_UINT5_T] = 5,
+       [FIELD_TYPE_ALIAS_UINT8_T] = 8,
+       [FIELD_TYPE_ALIAS_UINT16_T] = 16,
+       [FIELD_TYPE_ALIAS_UINT27_T] = 27,
+       [FIELD_TYPE_ALIAS_UINT32_T] = 32,
+       [FIELD_TYPE_ALIAS_UINT64_T] = 64,
+};
+
+static GHashTable *reserved_keywords_set;
+static int init_done;
+static int global_data_refcount;
+
+struct bt_ctf_writer *bt_ctf_writer_create(const char *path)
+{
+       struct bt_ctf_writer *writer = NULL;
+
+       if (!path) {
+               goto error;
+       }
+
+       writer = g_new0(struct bt_ctf_writer, 1);
+       if (!writer) {
+               goto error;
+       }
+
+       bt_ctf_writer_set_byte_order(writer, BT_CTF_BYTE_ORDER_NATIVE);
+       bt_ctf_ref_init(&writer->ref_count);
+       writer->path = g_string_new(path);
+       if (!writer->path) {
+               goto error_destroy;
+       }
+
+       /* Create trace directory if necessary and open a metadata file */
+       if (g_mkdir_with_parents(path, S_IRWXU | S_IRWXG)) {
+               perror("g_mkdir_with_parents");
+               goto error_destroy;
+       }
+
+       writer->trace_dir_fd = open(path, O_RDONLY | O_DIRECTORY,
+               S_IRWXU | S_IRWXG);
+       if (writer->trace_dir_fd < 0) {
+               perror("open");
+               goto error_destroy;
+       }
+
+       writer->metadata_fd = openat(writer->trace_dir_fd, "metadata",
+               O_WRONLY | O_CREAT | O_TRUNC,
+               S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
+       writer->environment = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)environment_variable_destroy);
+       writer->clocks = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_clock_put);
+       writer->streams = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_stream_put);
+       writer->stream_classes = g_ptr_array_new_with_free_func(
+               (GDestroyNotify)bt_ctf_stream_class_put);
+       if (!writer->environment || !writer->clocks ||
+               !writer->stream_classes || !writer->streams) {
+               goto error_destroy;
+       }
+
+       /* Generate a trace UUID */
+       uuid_generate(writer->uuid);
+       if (init_trace_packet_header(writer)) {
+               goto error_destroy;
+       }
+
+       return writer;
+error_destroy:
+       unlinkat(writer->trace_dir_fd, "metadata", 0);
+       bt_ctf_writer_destroy(&writer->ref_count);
+       writer = NULL;
+error:
+       return writer;
+}
+
+void bt_ctf_writer_destroy(struct bt_ctf_ref *ref)
+{
+       struct bt_ctf_writer *writer;
+
+       if (!ref) {
+               return;
+       }
+
+       writer = container_of(ref, struct bt_ctf_writer, ref_count);
+       bt_ctf_writer_flush_metadata(writer);
+       if (writer->path) {
+               g_string_free(writer->path, TRUE);
+       }
+
+       if (writer->trace_dir_fd > 0) {
+               close(writer->trace_dir_fd);
+       }
+
+       if (writer->metadata_fd > 0) {
+               close(writer->metadata_fd);
+       }
+
+       if (writer->environment) {
+               g_ptr_array_free(writer->environment, TRUE);
+       }
+
+       if (writer->clocks) {
+               g_ptr_array_free(writer->clocks, TRUE);
+       }
+
+       if (writer->streams) {
+               g_ptr_array_free(writer->streams, TRUE);
+       }
+
+       if (writer->stream_classes) {
+               g_ptr_array_free(writer->stream_classes, TRUE);
+       }
+
+       bt_ctf_field_type_put(writer->trace_packet_header_type);
+       bt_ctf_field_put(writer->trace_packet_header);
+       g_free(writer);
+}
+
+struct bt_ctf_stream *bt_ctf_writer_create_stream(struct bt_ctf_writer *writer,
+               struct bt_ctf_stream_class *stream_class)
+{
+       int ret;
+       int stream_class_found = 0;
+       size_t i;
+       int stream_fd;
+       struct bt_ctf_stream *stream = NULL;
+
+       if (!writer || !stream_class) {
+               goto error;
+       }
+
+       stream = bt_ctf_stream_create(stream_class);
+       if (!stream) {
+               goto error;
+       }
+
+       stream_fd = create_stream_file(writer, stream);
+       if (stream_fd < 0 || bt_ctf_stream_set_fd(stream, stream_fd)) {
+               goto error;
+       }
+
+       bt_ctf_stream_set_flush_callback(stream, (flush_func)stream_flush_cb,
+               writer);
+       ret = bt_ctf_stream_class_set_byte_order(stream->stream_class,
+               writer->byte_order == LITTLE_ENDIAN ?
+               BT_CTF_BYTE_ORDER_LITTLE_ENDIAN : BT_CTF_BYTE_ORDER_BIG_ENDIAN);
+       if (ret) {
+               goto error;
+       }
+
+       for (i = 0; i < writer->stream_classes->len; i++) {
+               if (writer->stream_classes->pdata[i] == stream->stream_class) {
+                       stream_class_found = 1;
+               }
+       }
+
+       if (!stream_class_found) {
+               if (bt_ctf_stream_class_set_id(stream->stream_class,
+                       writer->next_stream_id++)) {
+                       goto error;
+               }
+
+               bt_ctf_stream_class_get(stream->stream_class);
+               g_ptr_array_add(writer->stream_classes, stream->stream_class);
+       }
+
+       bt_ctf_stream_get(stream);
+       g_ptr_array_add(writer->streams, stream);
+       writer->frozen = 1;
+       return stream;
+error:
+       bt_ctf_stream_put(stream);
+       return NULL;
+}
+
+int bt_ctf_writer_add_environment_field(struct bt_ctf_writer *writer,
+               const char *name,
+               const char *value)
+{
+       struct environment_variable *var = NULL;
+       char *escaped_value = NULL;
+       int ret = 0;
+
+       if (!writer || !name || !value || validate_identifier(name)) {
+               ret = -1;
+               goto error;
+       }
+
+       if (strchr(name, ' ')) {
+               ret = -1;
+               goto error;
+       }
+
+       var = g_new0(struct environment_variable, 1);
+       if (!var) {
+               ret = -1;
+               goto error;
+       }
+
+       escaped_value = g_strescape(value, NULL);
+       if (!escaped_value) {
+               ret = -1;
+               goto error;
+       }
+
+       var->name = g_string_new(name);
+       var->value = g_string_new(escaped_value);
+       g_free(escaped_value);
+       if (!var->name || !var->value) {
+               ret = -1;
+               goto error;
+       }
+
+       g_ptr_array_add(writer->environment, var);
+       return ret;
+
+error:
+       if (var && var->name) {
+               g_string_free(var->name, TRUE);
+       }
+
+       if (var && var->value) {
+               g_string_free(var->value, TRUE);
+       }
+
+       g_free(var);
+       return ret;
+}
+
+int bt_ctf_writer_add_clock(struct bt_ctf_writer *writer,
+               struct bt_ctf_clock *clock)
+{
+       int ret = 0;
+       struct search_query query = { .value = clock, .found = 0 };
+
+       if (!writer || !clock) {
+               ret = -1;
+               goto end;
+       }
+
+       /* Check for duplicate clocks */
+       g_ptr_array_foreach(writer->clocks, value_exists, &query);
+       if (query.found) {
+               ret = -1;
+               goto end;
+       }
+
+       bt_ctf_clock_get(clock);
+       g_ptr_array_add(writer->clocks, clock);
+end:
+       return ret;
+}
+
+BT_HIDDEN
+const char *get_byte_order_string(int byte_order)
+{
+       const char *string;
+
+       switch (byte_order) {
+       case LITTLE_ENDIAN:
+               string = "le";
+               break;
+       case BIG_ENDIAN:
+               string = "be";
+               break;
+       default:
+               string = "unknown";
+               break;
+       }
+
+       return string;
+}
+
+static
+void append_trace_metadata(struct bt_ctf_writer *writer,
+               struct metadata_context *context)
+{
+       g_string_append(context->string, "trace {\n");
+
+       g_string_append(context->string, "\tmajor = 1;\n");
+       g_string_append(context->string, "\tminor = 8;\n");
+
+       unsigned char *uuid = writer->uuid;
+       g_string_append_printf(context->string,
+               "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n",
+               uuid[0], uuid[1], uuid[2], uuid[3],
+               uuid[4], uuid[5], uuid[6], uuid[7],
+               uuid[8], uuid[9], uuid[10], uuid[11],
+               uuid[12], uuid[13], uuid[14], uuid[15]);
+       g_string_append_printf(context->string, "\tbyte_order = %s;\n",
+               get_byte_order_string(writer->byte_order));
+
+       g_string_append(context->string, "\tpacket.header := ");
+       context->current_indentation_level++;
+       g_string_assign(context->field_name, "");
+       bt_ctf_field_type_serialize(writer->trace_packet_header_type, context);
+       context->current_indentation_level--;
+
+       g_string_append(context->string, ";\n};\n\n");
+}
+
+static
+void append_env_field_metadata(struct environment_variable *var,
+               struct metadata_context *context)
+{
+       g_string_append_printf(context->string, "\t%s = \"%s\";\n",
+               var->name->str, var->value->str);
+}
+
+static
+void append_env_metadata(struct bt_ctf_writer *writer,
+               struct metadata_context *context)
+{
+       if (writer->environment->len == 0) {
+               return;
+       }
+
+       g_string_append(context->string, "env {\n");
+       g_ptr_array_foreach(writer->environment,
+               (GFunc)append_env_field_metadata, context);
+       g_string_append(context->string, "};\n\n");
+}
+
+char *bt_ctf_writer_get_metadata_string(struct bt_ctf_writer *writer)
+{
+       char *metadata = NULL;
+       struct metadata_context *context = NULL;
+       int err = 0;
+       size_t i;
+
+       if (!writer) {
+               goto end;
+       }
+
+       context = g_new0(struct metadata_context, 1);
+       if (!context) {
+               goto end;
+       }
+
+       context->field_name = g_string_sized_new(DEFAULT_IDENTIFIER_SIZE);
+       context->string = g_string_sized_new(DEFAULT_METADATA_STRING_SIZE);
+       g_string_append(context->string, "/* CTF 1.8 */\n\n");
+       append_trace_metadata(writer, context);
+       append_env_metadata(writer, context);
+       g_ptr_array_foreach(writer->clocks,
+               (GFunc)bt_ctf_clock_serialize, context);
+
+       for (i = 0; i < writer->stream_classes->len; i++) {
+               err = bt_ctf_stream_class_serialize(
+                       writer->stream_classes->pdata[i], context);
+               if (err) {
+                       goto error;
+               }
+       }
+
+       metadata = context->string->str;
+error:
+       g_string_free(context->string, err ? TRUE : FALSE);
+       g_string_free(context->field_name, TRUE);
+       g_free(context);
+end:
+       return metadata;
+}
+
+void bt_ctf_writer_flush_metadata(struct bt_ctf_writer *writer)
+{
+       int ret;
+       char *metadata_string = NULL;
+
+       if (!writer) {
+               goto end;
+       }
+
+       metadata_string = bt_ctf_writer_get_metadata_string(writer);
+       if (!metadata_string) {
+               goto end;
+       }
+
+       if (lseek(writer->metadata_fd, 0, SEEK_SET) == (off_t)-1) {
+               perror("lseek");
+               goto end;
+       }
+
+       if (ftruncate(writer->metadata_fd, 0)) {
+               perror("ftruncate");
+               goto end;
+       }
+
+       ret = write(writer->metadata_fd, metadata_string,
+               strlen(metadata_string));
+       if (ret < 0) {
+               perror("write");
+               goto end;
+       }
+end:
+       g_free(metadata_string);
+}
+
+int bt_ctf_writer_set_byte_order(struct bt_ctf_writer *writer,
+               enum bt_ctf_byte_order byte_order)
+{
+       int ret = 0;
+       int internal_byte_order;
+
+       if (!writer || writer->frozen) {
+               ret = -1;
+               goto end;
+       }
+
+       switch (byte_order) {
+       case BT_CTF_BYTE_ORDER_NATIVE:
+               internal_byte_order =  (G_BYTE_ORDER == G_LITTLE_ENDIAN) ?
+                       LITTLE_ENDIAN : BIG_ENDIAN;
+               break;
+       case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN:
+               internal_byte_order = LITTLE_ENDIAN;
+               break;
+       case BT_CTF_BYTE_ORDER_BIG_ENDIAN:
+       case BT_CTF_BYTE_ORDER_NETWORK:
+               internal_byte_order = BIG_ENDIAN;
+               break;
+       default:
+               ret = -1;
+               goto end;
+       }
+
+       writer->byte_order = internal_byte_order;
+       if (writer->trace_packet_header_type ||
+               writer->trace_packet_header) {
+               init_trace_packet_header(writer);
+       }
+end:
+       return ret;
+}
+
+void bt_ctf_writer_get(struct bt_ctf_writer *writer)
+{
+       if (!writer) {
+               return;
+       }
+
+       bt_ctf_ref_get(&writer->ref_count);
+}
+
+void bt_ctf_writer_put(struct bt_ctf_writer *writer)
+{
+       if (!writer) {
+               return;
+       }
+
+       bt_ctf_ref_put(&writer->ref_count, bt_ctf_writer_destroy);
+}
+
+BT_HIDDEN
+int validate_identifier(const char *input_string)
+{
+       int ret = 0;
+       char *string = NULL;
+       char *save_ptr, *token;
+
+       if (!input_string || input_string[0] == '\0') {
+               ret = -1;
+               goto end;
+       }
+
+       string = strdup(input_string);
+       if (!string) {
+               ret = -1;
+               goto end;
+       }
+
+       token = strtok_r(string, " ", &save_ptr);
+       while (token) {
+               if (g_hash_table_contains(reserved_keywords_set,
+                       GINT_TO_POINTER(g_quark_from_string(token)))) {
+                       ret = -1;
+                       goto end;
+               }
+
+               token = strtok_r(NULL, " ", &save_ptr);
+       }
+end:
+       free(string);
+       return ret;
+}
+
+BT_HIDDEN
+struct bt_ctf_field_type *get_field_type(enum field_type_alias alias)
+{
+       unsigned int alignment, size;
+       struct bt_ctf_field_type *field_type;
+
+       if (alias >= NR_FIELD_TYPE_ALIAS) {
+               return NULL;
+       }
+
+       alignment = field_type_aliases_alignments[alias];
+       size = field_type_aliases_sizes[alias];
+       field_type = bt_ctf_field_type_integer_create(size);
+       bt_ctf_field_type_set_alignment(field_type, alignment);
+       return field_type;
+}
+
+static
+int init_trace_packet_header(struct bt_ctf_writer *writer)
+{
+       size_t i;
+       int ret = 0;
+       struct bt_ctf_field *trace_packet_header = NULL,
+               *magic = NULL, *uuid_array = NULL;
+       struct bt_ctf_field_type *_uint32_t =
+               get_field_type(FIELD_TYPE_ALIAS_UINT32_T);
+       struct bt_ctf_field_type *_uint8_t =
+               get_field_type(FIELD_TYPE_ALIAS_UINT8_T);
+       struct bt_ctf_field_type *trace_packet_header_type =
+               bt_ctf_field_type_structure_create();
+       struct bt_ctf_field_type *uuid_array_type =
+               bt_ctf_field_type_array_create(_uint8_t, 16);
+
+       if (!trace_packet_header_type || !uuid_array_type) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_set_byte_order(_uint32_t,
+               (writer->byte_order == LITTLE_ENDIAN ?
+               BT_CTF_BYTE_ORDER_LITTLE_ENDIAN :
+               BT_CTF_BYTE_ORDER_BIG_ENDIAN));
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
+               _uint32_t, "magic");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
+               uuid_array_type, "uuid");
+       if (ret) {
+               goto end;
+       }
+
+       ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type,
+               _uint32_t, "stream_id");
+       if (ret) {
+               goto end;
+       }
+
+       trace_packet_header = bt_ctf_field_create(trace_packet_header_type);
+       if (!trace_packet_header) {
+               ret = -1;
+               goto end;
+       }
+
+       magic = bt_ctf_field_structure_get_field(trace_packet_header, "magic");
+       ret = bt_ctf_field_unsigned_integer_set_value(magic, 0xC1FC1FC1);
+       if (ret) {
+               goto end;
+       }
+
+       uuid_array = bt_ctf_field_structure_get_field(trace_packet_header,
+               "uuid");
+       for (i = 0; i < 16; i++) {
+               struct bt_ctf_field *uuid_element =
+                       bt_ctf_field_array_get_field(uuid_array, i);
+               ret = bt_ctf_field_unsigned_integer_set_value(uuid_element,
+                       writer->uuid[i]);
+               bt_ctf_field_put(uuid_element);
+               if (ret) {
+                       goto end;
+               }
+       }
+
+       bt_ctf_field_type_put(writer->trace_packet_header_type);
+       bt_ctf_field_put(writer->trace_packet_header);
+       writer->trace_packet_header_type = trace_packet_header_type;
+       writer->trace_packet_header = trace_packet_header;
+end:
+       bt_ctf_field_type_put(uuid_array_type);
+       bt_ctf_field_type_put(_uint32_t);
+       bt_ctf_field_type_put(_uint8_t);
+       bt_ctf_field_put(magic);
+       bt_ctf_field_put(uuid_array);
+       if (ret) {
+               bt_ctf_field_type_put(trace_packet_header_type);
+               bt_ctf_field_put(trace_packet_header);
+       }
+
+       return ret;
+}
+
+static
+void environment_variable_destroy(struct environment_variable *var)
+{
+       g_string_free(var->name, TRUE);
+       g_string_free(var->value, TRUE);
+       g_free(var);
+}
+
+static
+int create_stream_file(struct bt_ctf_writer *writer,
+               struct bt_ctf_stream *stream)
+{
+       int fd;
+       GString *filename = g_string_new(stream->stream_class->name->str);
+
+       g_string_append_printf(filename, "_%" PRIu32, stream->id);
+       fd = openat(writer->trace_dir_fd, filename->str,
+               O_RDWR | O_CREAT | O_TRUNC,
+               S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
+       g_string_free(filename, TRUE);
+       return fd;
+}
+
+static
+void stream_flush_cb(struct bt_ctf_stream *stream, struct bt_ctf_writer *writer)
+{
+       struct bt_ctf_field *stream_id;
+
+       /* Start a new packet in the stream */
+       if (stream->flushed_packet_count) {
+               /* ctf_init_pos has already initialized the first packet */
+               ctf_packet_seek(&stream->pos.parent, 0, SEEK_CUR);
+       }
+
+       stream_id = bt_ctf_field_structure_get_field(
+               writer->trace_packet_header, "stream_id");
+       bt_ctf_field_unsigned_integer_set_value(stream_id, stream->id);
+       bt_ctf_field_put(stream_id);
+
+       /* Write the trace_packet_header */
+       bt_ctf_field_serialize(writer->trace_packet_header, &stream->pos);
+}
+
+static __attribute__((constructor))
+void writer_init(void)
+{
+       size_t i;
+       const size_t reserved_keywords_count =
+               sizeof(reserved_keywords_str) / sizeof(char *);
+
+       global_data_refcount++;
+       if (init_done) {
+               return;
+       }
+
+       reserved_keywords_set = g_hash_table_new(g_direct_hash, g_direct_equal);
+       for (i = 0; i < reserved_keywords_count; i++) {
+               g_hash_table_add(reserved_keywords_set,
+               GINT_TO_POINTER(g_quark_from_string(reserved_keywords_str[i])));
+       }
+
+       init_done = 1;
+}
+
+static __attribute__((destructor))
+void writer_finalize(void)
+{
+       if (--global_data_refcount == 0) {
+               g_hash_table_destroy(reserved_keywords_set);
+       }
+}
index e36817319bfcf3c5f44f2b9d5b5a122158a6b9db..ec927b9173ffa21f9a9557c157e80f5e38ba5d77 100644 (file)
@@ -10,7 +10,9 @@ babeltraceinclude_HEADERS = \
 babeltracectfinclude_HEADERS = \
        babeltrace/ctf/events.h \
        babeltrace/ctf/callbacks.h \
-       babeltrace/ctf/iterator.h \
+       babeltrace/ctf/iterator.h
+
+babeltracectfwriterinclude_HEADERS = \
        babeltrace/ctf-writer/clock.h \
        babeltrace/ctf-writer/writer.h \
        babeltrace/ctf-writer/event-fields.h \
@@ -36,6 +38,14 @@ noinst_HEADERS = \
        babeltrace/ctf-text/types.h \
        babeltrace/ctf/types.h \
        babeltrace/ctf/callbacks-internal.h \
+       babeltrace/ctf-writer/ref-internal.h \
+       babeltrace/ctf-writer/writer-internal.h \
+       babeltrace/ctf-writer/event-types-internal.h \
+       babeltrace/ctf-writer/event-fields-internal.h \
+       babeltrace/ctf-writer/event-internal.h \
+       babeltrace/ctf-writer/clock-internal.h \
+       babeltrace/ctf-writer/stream-internal.h \
+       babeltrace/ctf-writer/functor-internal.h \
        babeltrace/trace-handle-internal.h \
        babeltrace/compat/uuid.h \
        babeltrace/compat/memstream.h \
diff --git a/include/babeltrace/ctf-writer/clock-internal.h b/include/babeltrace/ctf-writer/clock-internal.h
new file mode 100644 (file)
index 0000000..c60e5c0
--- /dev/null
@@ -0,0 +1,65 @@
+#ifndef BABELTRACE_CTF_WRITER_CLOCK_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_CLOCK_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Clock internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/clock.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <glib.h>
+#include <uuid/uuid.h>
+
+struct bt_ctf_clock {
+       struct bt_ctf_ref ref_count;
+       GString *name;
+       GString *description;
+       uint64_t frequency;
+       uint64_t precision;
+       uint64_t offset_s;      /* Offset in seconds */
+       uint64_t offset;        /* Offset in ticks */
+       uint64_t time;          /* Current clock value */
+       uuid_t uuid;
+       int absolute;
+       /*
+        * A clock's properties can't be modified once it is added to a stream
+        * class.
+        */
+       int frozen;
+};
+
+BT_HIDDEN
+void bt_ctf_clock_freeze(struct bt_ctf_clock *clock);
+
+BT_HIDDEN
+void bt_ctf_clock_serialize(struct bt_ctf_clock *clock,
+               struct metadata_context *context);
+
+BT_HIDDEN
+uint64_t bt_ctf_clock_get_time(struct bt_ctf_clock *clock);
+
+#endif /* BABELTRACE_CTF_WRITER_CLOCK_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/event-fields-internal.h b/include/babeltrace/ctf-writer/event-fields-internal.h
new file mode 100644 (file)
index 0000000..9f2670d
--- /dev/null
@@ -0,0 +1,100 @@
+#ifndef BABELTRACE_CTF_WRITER_EVENT_FIELDS_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_EVENT_FIELDS_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Event Fields internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf/types.h>
+#include <glib.h>
+
+struct bt_ctf_field {
+       struct bt_ctf_ref ref_count;
+       struct bt_ctf_field_type *type;
+       int payload_set;
+};
+
+struct bt_ctf_field_integer {
+       struct bt_ctf_field parent;
+       struct definition_integer definition;
+};
+
+struct bt_ctf_field_enumeration {
+       struct bt_ctf_field parent;
+       struct bt_ctf_field *payload;
+};
+
+struct bt_ctf_field_floating_point {
+       struct bt_ctf_field parent;
+       struct definition_float definition;
+       struct definition_integer sign, mantissa, exp;
+};
+
+struct bt_ctf_field_structure {
+       struct bt_ctf_field parent;
+       GHashTable *field_name_to_index;
+       GPtrArray *fields; /* Array of pointers to struct bt_ctf_field */
+};
+
+struct bt_ctf_field_variant {
+       struct bt_ctf_field parent;
+       struct bt_ctf_field *tag;
+       struct bt_ctf_field *payload;
+};
+
+struct bt_ctf_field_array {
+       struct bt_ctf_field parent;
+       GPtrArray *elements; /* Array of pointers to struct bt_ctf_field */
+};
+
+struct bt_ctf_field_sequence {
+       struct bt_ctf_field parent;
+       struct bt_ctf_field *length;
+       GPtrArray *elements; /* Array of pointers to struct bt_ctf_field */
+};
+
+struct bt_ctf_field_string {
+       struct bt_ctf_field parent;
+       GString *payload;
+};
+
+/*
+ * Set a field's value with an already allocated field instance.
+ */
+BT_HIDDEN
+int bt_ctf_field_structure_set_field(struct bt_ctf_field *structure,
+               const char *name, struct bt_ctf_field *value);
+
+BT_HIDDEN
+int bt_ctf_field_validate(struct bt_ctf_field *field);
+
+BT_HIDDEN
+int bt_ctf_field_serialize(struct bt_ctf_field *field,
+               struct ctf_stream_pos *pos);
+
+#endif /* BABELTRACE_CTF_WRITER_EVENT_FIELDS_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/event-internal.h b/include/babeltrace/ctf-writer/event-internal.h
new file mode 100644 (file)
index 0000000..b84c3dd
--- /dev/null
@@ -0,0 +1,90 @@
+#ifndef BABELTRACE_CTF_WRITER_EVENT_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_EVENT_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Event internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf/types.h>
+#include <glib.h>
+
+struct bt_ctf_event_class {
+       struct bt_ctf_ref ref_count;
+       GQuark name;
+       int id_set;
+       uint32_t id;
+       int stream_id_set;
+       uint32_t stream_id;
+       /* Structure type containing the event's context */
+       struct bt_ctf_field_type *context;
+       /* Structure type containing the event's fields */
+       struct bt_ctf_field_type *fields;
+       int frozen;
+};
+
+struct bt_ctf_event {
+       struct bt_ctf_ref ref_count;
+       uint64_t timestamp;
+       struct bt_ctf_event_class *event_class;
+       struct bt_ctf_field *context_payload;
+       struct bt_ctf_field *fields_payload;
+};
+
+BT_HIDDEN
+void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class);
+
+BT_HIDDEN
+int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
+               uint32_t id);
+
+BT_HIDDEN
+uint32_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class);
+
+BT_HIDDEN
+int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
+               uint32_t id);
+
+BT_HIDDEN
+int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
+               struct metadata_context *context);
+
+BT_HIDDEN
+int bt_ctf_event_validate(struct bt_ctf_event *event);
+
+BT_HIDDEN
+int bt_ctf_event_serialize(struct bt_ctf_event *event,
+               struct ctf_stream_pos *pos);
+
+BT_HIDDEN
+int bt_ctf_event_set_timestamp(struct bt_ctf_event *event, uint64_t timestamp);
+
+BT_HIDDEN
+uint64_t bt_ctf_event_get_timestamp(struct bt_ctf_event *event);
+
+#endif /* BABELTRACE_CTF_WRITER_EVENT_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/event-types-internal.h b/include/babeltrace/ctf-writer/event-types-internal.h
new file mode 100644 (file)
index 0000000..d9acdd3
--- /dev/null
@@ -0,0 +1,150 @@
+#ifndef BABELTRACE_CTF_WRITER_EVENT_TYPES_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_EVENT_TYPES_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Event types internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/ctf-writer/writer.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/types.h>
+#include <babeltrace/ctf/events.h>
+#include <glib.h>
+
+typedef void(*type_freeze_func)(struct bt_ctf_field_type *);
+typedef int(*type_serialize_func)(struct bt_ctf_field_type *,
+               struct metadata_context *);
+
+struct bt_ctf_field_type {
+       struct bt_ctf_ref ref_count;
+       struct bt_declaration *declaration;
+       type_freeze_func freeze;
+       type_serialize_func serialize;
+       /*
+        * A type can't be modified once it is added to an event or after a
+        * a field has been instanciated from it.
+        */
+       int frozen;
+};
+
+struct bt_ctf_field_type_integer {
+       struct bt_ctf_field_type parent;
+       struct declaration_integer declaration;
+};
+
+struct enumeration_mapping {
+       int64_t range_start;
+       int64_t range_end;
+       GQuark string;
+};
+
+struct bt_ctf_field_type_enumeration {
+       struct bt_ctf_field_type parent;
+       struct bt_ctf_field_type *container;
+       GPtrArray *entries; /* Array of pointers to struct enum_mapping */
+       struct declaration_enum declaration;
+};
+
+struct bt_ctf_field_type_floating_point {
+       struct bt_ctf_field_type parent;
+       struct declaration_float declaration;
+       struct declaration_integer sign;
+       struct declaration_integer mantissa;
+       struct declaration_integer exp;
+};
+
+struct structure_field {
+       GQuark name;
+       struct bt_ctf_field_type *type;
+};
+
+struct bt_ctf_field_type_structure {
+       struct bt_ctf_field_type parent;
+       GHashTable *field_name_to_index;
+       GPtrArray *fields; /* Array of pointers to struct structure_field */
+       struct declaration_enum declaration;
+};
+
+struct bt_ctf_field_type_variant {
+       struct bt_ctf_field_type parent;
+       GString *tag_name;
+       struct bt_ctf_field_type_enumeration *tag;
+       GHashTable *field_name_to_index;
+       GPtrArray *fields; /* Array of pointers to struct structure_field */
+       struct declaration_variant declaration;
+};
+
+struct bt_ctf_field_type_array {
+       struct bt_ctf_field_type parent;
+       struct bt_ctf_field_type *element_type;
+       unsigned int length; /* Number of elements */
+       struct declaration_array declaration;
+};
+
+struct bt_ctf_field_type_sequence {
+       struct bt_ctf_field_type parent;
+       struct bt_ctf_field_type *element_type;
+       GString *length_field_name;
+       struct declaration_sequence declaration;
+};
+
+struct bt_ctf_field_type_string {
+       struct bt_ctf_field_type parent;
+       struct declaration_string declaration;
+};
+
+BT_HIDDEN
+void bt_ctf_field_type_freeze(struct bt_ctf_field_type *type);
+
+BT_HIDDEN
+enum ctf_type_id bt_ctf_field_type_get_type_id(
+               struct bt_ctf_field_type *type);
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_structure_get_type(
+               struct bt_ctf_field_type_structure *structure,
+               const char *name);
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_array_get_element_type(
+               struct bt_ctf_field_type_array *array);
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_sequence_get_element_type(
+               struct bt_ctf_field_type_sequence *sequence);
+
+BT_HIDDEN
+struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type(
+               struct bt_ctf_field_type_variant *variant, int64_t tag_value);
+
+BT_HIDDEN
+int bt_ctf_field_type_serialize(struct bt_ctf_field_type *type,
+               struct metadata_context *context);
+
+#endif /* BABELTRACE_CTF_WRITER_EVENT_TYPES_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/functor-internal.h b/include/babeltrace/ctf-writer/functor-internal.h
new file mode 100644 (file)
index 0000000..66d3fcf
--- /dev/null
@@ -0,0 +1,41 @@
+#ifndef BABELTRACE_CTF_WRITER_FUNCTOR_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_FUNCTOR_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Functors for use with glib data structures
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <glib.h>
+#include <babeltrace/babeltrace-internal.h>
+
+struct search_query {
+       gpointer value;
+       int found;
+};
+
+BT_HIDDEN
+void value_exists(gpointer element, gpointer search_query);
+
+#endif /* BABELTRACE_CTF_WRITER_FUNCTOR_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/ref-internal.h b/include/babeltrace/ctf-writer/ref-internal.h
new file mode 100644 (file)
index 0000000..486e243
--- /dev/null
@@ -0,0 +1,61 @@
+#ifndef BABELTRACE_CTF_WRITER_REF_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_REF_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Reference count
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <assert.h>
+
+struct bt_ctf_ref {
+       long refcount;
+};
+
+static inline
+void bt_ctf_ref_init(struct bt_ctf_ref *ref)
+{
+       assert(ref);
+       ref->refcount = 1;
+}
+
+static inline
+void bt_ctf_ref_get(struct bt_ctf_ref *ref)
+{
+       assert(ref);
+       ref->refcount++;
+}
+
+static inline
+void bt_ctf_ref_put(struct bt_ctf_ref *ref,
+               void (*release)(struct bt_ctf_ref *))
+{
+       assert(ref);
+       assert(release);
+       if ((--ref->refcount) == 0) {
+               release(ref);
+       }
+}
+
+#endif /* BABELTRACE_CTF_WRITER_REF_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/stream-internal.h b/include/babeltrace/ctf-writer/stream-internal.h
new file mode 100644 (file)
index 0000000..57dd992
--- /dev/null
@@ -0,0 +1,101 @@
+#ifndef BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Stream internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/clock.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <babeltrace/ctf/types.h>
+#include <glib.h>
+
+typedef void(*flush_func)(struct bt_ctf_stream *, void *);
+
+struct bt_ctf_stream_class {
+       struct bt_ctf_ref ref_count;
+       GString *name;
+       struct bt_ctf_clock *clock;
+       GPtrArray *event_classes; /* Array of pointers to bt_ctf_event_class */
+       int id_set;
+       uint32_t id;
+       uint32_t next_event_id;
+       uint32_t next_stream_id;
+       struct bt_ctf_field_type *event_header_type;
+       struct bt_ctf_field *event_header;
+       struct bt_ctf_field_type *packet_context_type;
+       struct bt_ctf_field *packet_context;
+       struct bt_ctf_field_type *event_context_type;
+       struct bt_ctf_field *event_context;
+       int frozen;
+};
+
+struct flush_callback {
+       flush_func func;
+       void *data;
+};
+
+struct bt_ctf_stream {
+       struct bt_ctf_ref ref_count;
+       uint32_t id;
+       struct bt_ctf_stream_class *stream_class;
+       struct flush_callback flush;
+       /* Array of pointers to bt_ctf_event for the current packet */
+       GPtrArray *events;
+       struct ctf_stream_pos pos;
+       unsigned int flushed_packet_count;
+       uint64_t events_discarded;
+};
+
+BT_HIDDEN
+void bt_ctf_stream_class_freeze(struct bt_ctf_stream_class *stream_class);
+
+BT_HIDDEN
+int bt_ctf_stream_class_set_id(struct bt_ctf_stream_class *stream_class,
+               uint32_t id);
+
+BT_HIDDEN
+int bt_ctf_stream_class_serialize(struct bt_ctf_stream_class *stream_class,
+               struct metadata_context *context);
+
+BT_HIDDEN
+int bt_ctf_stream_class_set_byte_order(struct bt_ctf_stream_class *stream_class,
+               enum bt_ctf_byte_order byte_order);
+
+BT_HIDDEN
+struct bt_ctf_stream *bt_ctf_stream_create(
+               struct bt_ctf_stream_class *stream_class);
+
+BT_HIDDEN
+int bt_ctf_stream_set_flush_callback(struct bt_ctf_stream *stream,
+               flush_func callback, void *data);
+
+BT_HIDDEN
+int bt_ctf_stream_set_fd(struct bt_ctf_stream *stream, int fd);
+
+#endif /* BABELTRACE_CTF_WRITER_STREAM_INTERNAL_H */
diff --git a/include/babeltrace/ctf-writer/writer-internal.h b/include/babeltrace/ctf-writer/writer-internal.h
new file mode 100644 (file)
index 0000000..5c682dd
--- /dev/null
@@ -0,0 +1,87 @@
+#ifndef BABELTRACE_CTF_WRITER_WRITER_INTERNAL_H
+#define BABELTRACE_CTF_WRITER_WRITER_INTERNAL_H
+
+/*
+ * BabelTrace - CTF Writer: Writer internal
+ *
+ * Copyright 2013 EfficiOS Inc.
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-writer/ref-internal.h>
+#include <babeltrace/ctf-writer/writer.h>
+#include <babeltrace/ctf-writer/event-types.h>
+#include <babeltrace/ctf-writer/event-fields.h>
+#include <babeltrace/babeltrace-internal.h>
+#include <glib.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <uuid/uuid.h>
+
+enum field_type_alias {
+       FIELD_TYPE_ALIAS_UINT5_T = 0,
+       FIELD_TYPE_ALIAS_UINT8_T,
+       FIELD_TYPE_ALIAS_UINT16_T,
+       FIELD_TYPE_ALIAS_UINT27_T,
+       FIELD_TYPE_ALIAS_UINT32_T,
+       FIELD_TYPE_ALIAS_UINT64_T,
+       NR_FIELD_TYPE_ALIAS,
+};
+
+struct bt_ctf_writer {
+       struct bt_ctf_ref ref_count;
+       int frozen; /* Protects attributes that can't be changed mid-trace */
+       GString *path;
+       uuid_t uuid;
+       int byte_order;
+       int trace_dir_fd;
+       int metadata_fd;
+       GPtrArray *environment; /* Array of pointers to environment_variable */
+       GPtrArray *clocks; /* Array of pointers to bt_ctf_clock */
+       GPtrArray *stream_classes; /* Array of pointers to bt_ctf_stream_class */
+       GPtrArray *streams; /* Array of pointers to bt_ctf_stream */
+       struct bt_ctf_field_type *trace_packet_header_type;
+       struct bt_ctf_field *trace_packet_header;
+       uint32_t next_stream_id;
+};
+
+struct environment_variable {
+       GString *name, *value;
+};
+
+struct metadata_context {
+       GString *string;
+       GString *field_name;
+       unsigned int current_indentation_level;
+};
+
+/* Checks that the string does not contain a reserved keyword */
+BT_HIDDEN
+int validate_identifier(const char *string);
+
+BT_HIDDEN
+const char *get_byte_order_string(int byte_order);
+
+BT_HIDDEN
+struct bt_ctf_field_type *get_field_type(enum field_type_alias alias);
+
+#endif /* BABELTRACE_CTF_WRITER_WRITER_INTERNAL_H */
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