* SOFTWARE.
*/
+#define BT_LOG_TAG "CTF-WRITER"
+#include <babeltrace/lib-logging-internal.h>
+
+#include <babeltrace/assert-internal.h>
+#include <babeltrace/compat/uuid-internal.h>
+#include <babeltrace/compiler-internal.h>
#include <babeltrace/ctf-writer/clock-internal.h>
-#include <babeltrace/ctf-writer/writer-internal.h>
-#include <babeltrace/ctf-ir/field-types-internal.h>
-#include <babeltrace/ctf-ir/fields-internal.h>
+#include <babeltrace/ctf-writer/field-types-internal.h>
+#include <babeltrace/ctf-writer/fields-internal.h>
#include <babeltrace/ctf-writer/functor-internal.h>
-#include <babeltrace/ctf-ir/stream-class-internal.h>
-#include <babeltrace/ctf-ir/stream-internal.h>
-#include <babeltrace/ctf-ir/trace-internal.h>
-#include <babeltrace/ref.h>
+#include <babeltrace/ctf-writer/stream-class-internal.h>
+#include <babeltrace/ctf-writer/stream-internal.h>
+#include <babeltrace/ctf-writer/trace-internal.h>
+#include <babeltrace/ctf-writer/writer-internal.h>
#include <babeltrace/endian-internal.h>
-#include <babeltrace/compiler-internal.h>
+#include <babeltrace/ref.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
-#include <errno.h>
#include <unistd.h>
-#include <fcntl.h>
-#include <inttypes.h>
static
void bt_ctf_writer_destroy(struct bt_object *obj);
+static
+int init_trace_packet_header(struct bt_ctf_trace *trace)
+{
+ int ret = 0;
+ 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_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;
+ }
+
+ ret = bt_ctf_trace_set_packet_header_field_type(trace,
+ trace_packet_header_type);
+ if (ret) {
+ goto end;
+ }
+end:
+ bt_put(uuid_array_type);
+ bt_put(_uint32_t);
+ bt_put(_uint8_t);
+ bt_put(trace_packet_header_type);
+ return ret;
+}
+
struct bt_ctf_writer *bt_ctf_writer_create(const char *path)
{
int ret;
struct bt_ctf_writer *writer = NULL;
+ unsigned char uuid[16];
+ char *metadata_path = NULL;
if (!path) {
goto error;
goto error;
}
- bt_object_init(writer, bt_ctf_writer_destroy);
+ metadata_path = g_build_filename(path, "metadata", NULL);
+
+ bt_object_init_shared(&writer->base, bt_ctf_writer_destroy);
writer->path = g_string_new(path);
if (!writer->path) {
goto error_destroy;
goto error_destroy;
}
- writer->trace->is_created_by_writer = 1;
- bt_object_set_parent(writer->trace, writer);
+ ret = init_trace_packet_header(writer->trace);
+ if (ret) {
+ goto error_destroy;
+ }
+
+ /* Generate a UUID for this writer's trace */
+ ret = bt_uuid_generate(uuid);
+ if (ret) {
+ BT_LOGE_STR("Cannot generate UUID for CTF writer's trace.");
+ goto error_destroy;
+ }
+
+ ret = bt_ctf_trace_set_uuid(writer->trace, uuid);
+ if (ret) {
+ goto error_destroy;
+ }
+
+ bt_object_set_parent(&writer->trace->common.base, &writer->base);
bt_put(writer->trace);
/* Default to little-endian */
ret = bt_ctf_writer_set_byte_order(writer, BT_CTF_BYTE_ORDER_NATIVE);
- assert(ret == 0);
+ BT_ASSERT(ret == 0);
/* Create trace directory if necessary and open a metadata file */
if (g_mkdir_with_parents(path, S_IRWXU | S_IRWXG)) {
goto error_destroy;
}
- writer->trace_dir_fd = open(path, O_RDONLY, S_IRWXU | S_IRWXG);
- if (writer->trace_dir_fd < 0) {
+ writer->metadata_fd = open(metadata_path,
+ O_WRONLY | O_CREAT | O_TRUNC,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
+ if (writer->metadata_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);
-
+ g_free(metadata_path);
return writer;
error_destroy:
- unlinkat(writer->trace_dir_fd, "metadata", 0);
BT_PUT(writer);
error:
+ g_free(metadata_path);
return writer;
}
g_string_free(writer->path, TRUE);
}
- if (writer->trace_dir_fd > 0) {
- if (close(writer->trace_dir_fd)) {
- perror("close");
- }
- }
-
if (writer->metadata_fd > 0) {
if (close(writer->metadata_fd)) {
perror("close");
}
}
- bt_object_release(writer->trace);
+ bt_object_try_spec_release(&writer->trace->common.base);
g_free(writer);
}
{
struct bt_ctf_stream *stream = NULL;
int stream_class_count;
- bool stream_class_found = false;
+ bt_bool stream_class_found = BT_FALSE;
int i;
if (!writer || !stream_class) {
writer->trace, i);
if (existing_stream_class == stream_class) {
- stream_class_found = true;
+ stream_class_found = BT_TRUE;
}
BT_PUT(existing_stream_class);
}
}
- stream = bt_ctf_stream_create(stream_class, NULL);
+ stream = bt_ctf_stream_create_with_id(stream_class, NULL, -1ULL);
if (!stream) {
goto error;
}
return ret;
}
-void bt_ctf_writer_get(struct bt_ctf_writer *writer)
+BT_HIDDEN
+void bt_ctf_writer_freeze(struct bt_ctf_writer *writer)
{
- bt_get(writer);
+ writer->frozen = 1;
}
-void bt_ctf_writer_put(struct bt_ctf_writer *writer)
+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,
+};
+
+BT_HIDDEN
+struct bt_ctf_field_type *get_field_type(enum field_type_alias alias)
{
- bt_put(writer);
+ int ret;
+ unsigned int alignment, size;
+ struct bt_ctf_field_type *field_type = NULL;
+
+ if (alias >= NR_FIELD_TYPE_ALIAS) {
+ goto end;
+ }
+
+ alignment = field_type_aliases_alignments[alias];
+ size = field_type_aliases_sizes[alias];
+ field_type = bt_ctf_field_type_integer_create(size);
+ ret = bt_ctf_field_type_set_alignment(field_type, alignment);
+ if (ret) {
+ BT_PUT(field_type);
+ }
+end:
+ return field_type;
}
BT_HIDDEN
-void bt_ctf_writer_freeze(struct bt_ctf_writer *writer)
+const char *bt_ctf_get_byte_order_string(enum bt_ctf_byte_order byte_order)
{
- writer->frozen = 1;
+ const char *string;
+
+ switch (byte_order) {
+ case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN:
+ string = "le";
+ break;
+ case BT_CTF_BYTE_ORDER_BIG_ENDIAN:
+ string = "be";
+ break;
+ case BT_CTF_BYTE_ORDER_NATIVE:
+ string = "native";
+ break;
+ default:
+ abort();
+ }
+
+ return string;
}
projects / babeltrace.git / blobdiff