#include <babeltrace/endian-internal.h>
#include <inttypes.h>
#include <stdint.h>
+#include <stdbool.h>
static
void bt_ctf_stream_class_destroy(struct bt_object *obj);
BT_LOGD("Creating empty stream class object: name=\"%s\"", name);
- if (name && bt_ctf_validate_identifier(name)) {
- BT_LOGW("Invalid parameter: stream class's name is not a valid CTF identifier: "
- "name=\"%s\"", name);
- goto error;
- }
-
stream_class = g_new0(struct bt_ctf_stream_class, 1);
if (!stream_class) {
BT_LOGE_STR("Failed to allocate one stream class.");
goto error;
}
- stream_class->packet_context_type = bt_ctf_field_type_structure_create();
- if (!stream_class->packet_context_type) {
- BT_LOGE_STR("Cannot stream class's initial packet context field type.");
- goto error;
- }
-
- stream_class->event_header_type = bt_ctf_field_type_structure_create();
- if (!stream_class->event_header_type) {
- BT_LOGE_STR("Cannot stream class's initial event header field type.");
- goto error;
- }
-
- stream_class->event_context_type = bt_ctf_field_type_structure_create();
- if (!stream_class->event_context_type) {
- BT_LOGE_STR("Cannot stream class's initial event context field type.");
- goto error;
- }
-
bt_object_init(stream_class, bt_ctf_stream_class_destroy);
BT_LOGD("Created empty stream class object: addr=%p, name=\"%s\"",
stream_class, name);
goto end;
}
- /*
- * Look for a "timestamp" integer field type in the stream
- * class's event header field type and map the stream class's
- * clock's class to that field type if there's no current
- * mapping.
- */
- timestamp_field = bt_ctf_field_type_structure_get_field_type_by_name(
- stream_class->event_header_type, "timestamp");
- if (timestamp_field) {
- struct bt_ctf_clock_class *mapped_clock_class =
- bt_ctf_field_type_integer_get_mapped_clock_class(
- timestamp_field);
-
- if (!mapped_clock_class) {
- ret = bt_ctf_field_type_integer_set_mapped_clock_class(
- timestamp_field, clock->clock_class);
- if (ret) {
- goto end;
- }
- }
-
- BT_PUT(mapped_clock_class);
- }
-
/* Replace the current clock of this stream class. */
bt_put(stream_class->clock);
stream_class->clock = bt_get(clock);
const enum bt_ctf_validation_flag validation_flags =
BT_CTF_VALIDATION_FLAG_EVENT;
+ if (!stream_class || !event_class) {
+ BT_LOGW("Invalid parameter: stream class or event class is NULL: "
+ "stream-class-addr=%p, event-class-addr=%p",
+ stream_class, event_class);
+ ret = -1;
+ goto end;
+ }
+
BT_LOGD("Adding event class to stream class: "
"stream-class-addr=%p, stream-class-name=\"%s\", "
"stream-class-id=%" PRId64 ", event-class-addr=%p, "
bt_ctf_event_class_get_name(event_class),
bt_ctf_event_class_get_id(event_class));
- if (!stream_class || !event_class) {
- BT_LOGW("Invalid parameter: stream class or event class is NULL: "
- "stream-class-addr=%p, event-class-addr=%p",
- stream_class, event_class);
- ret = -1;
- goto end;
- }
-
trace = bt_ctf_stream_class_get_trace(stream_class);
if (trace && trace->is_static) {
ret = -1;
{
int ret = 0;
size_t i;
+ struct bt_ctf_trace *trace;
+ struct bt_ctf_field_type *packet_header_type = NULL;
BT_LOGD("Serializing stream class's metadata: "
"stream-class-addr=%p, stream-class-name=\"%s\", "
goto end;
}
- g_string_append_printf(context->string,
- "stream {\n\tid = %" PRId64 ";\n\tevent.header := ",
- stream_class->id);
- ret = bt_ctf_field_type_serialize(stream_class->event_header_type,
- context);
- if (ret) {
- BT_LOGW("Cannot serialize stream class's event header field type's metadata: "
- "ret=%d", ret);
- goto end;
+ g_string_append(context->string, "stream {\n");
+
+ /*
+ * The reference to the trace is only borrowed since the
+ * serialization of the stream class might have been triggered
+ * by the trace's destruction. In such a case, the trace's
+ * reference count would, unexepectedly, go through the sequence
+ * 1 -> 0 -> 1 -> 0 -> ..., provoking an endless loop of destruction
+ * and serialization.
+ */
+ trace = bt_ctf_stream_class_borrow_trace(stream_class);
+ assert(trace);
+ packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
+ trace = NULL;
+ if (packet_header_type) {
+ struct bt_ctf_field_type *stream_id_type;
+
+ stream_id_type =
+ bt_ctf_field_type_structure_get_field_type_by_name(
+ packet_header_type, "stream_id");
+ if (stream_id_type) {
+ /*
+ * Only set the stream's id if the trace's packet header
+ * contains a stream_id field. This field is only
+ * needed if the trace contains only one stream
+ * class.
+ */
+ g_string_append_printf(context->string,
+ "\tid = %" PRId64 ";\n", stream_class->id);
+ }
+ bt_put(stream_id_type);
+ }
+ if (stream_class->event_header_type) {
+ BT_LOGD_STR("Serializing stream class's event header field type's metadata.");
+ g_string_append(context->string, "\tevent.header := ");
+ ret = bt_ctf_field_type_serialize(stream_class->event_header_type,
+ context);
+ if (ret) {
+ BT_LOGW("Cannot serialize stream class's event header field type's metadata: "
+ "ret=%d", ret);
+ goto end;
+ }
+ g_string_append(context->string, ";");
}
+
if (stream_class->packet_context_type) {
- g_string_append(context->string, ";\n\n\tpacket.context := ");
+ BT_LOGD_STR("Serializing stream class's packet context field type's metadata.");
+ g_string_append(context->string, "\n\n\tpacket.context := ");
ret = bt_ctf_field_type_serialize(stream_class->packet_context_type,
context);
if (ret) {
"ret=%d", ret);
goto end;
}
+ g_string_append(context->string, ";");
}
if (stream_class->event_context_type) {
- g_string_append(context->string, ";\n\n\tevent.context := ");
+ BT_LOGD_STR("Serializing stream class's event context field type's metadata.");
+ g_string_append(context->string, "\n\n\tevent.context := ");
ret = bt_ctf_field_type_serialize(
stream_class->event_context_type, context);
if (ret) {
"ret=%d", ret);
goto end;
}
+ g_string_append(context->string, ";");
}
- g_string_append(context->string, ";\n};\n\n");
+ g_string_append(context->string, "\n};\n\n");
+
for (i = 0; i < stream_class->event_classes->len; i++) {
struct bt_ctf_event_class *event_class =
stream_class->event_classes->pdata[i];
}
}
end:
+ bt_put(packet_header_type);
context->current_indentation_level = 0;
return ret;
}
g_hash_table_destroy(stream_class->event_classes_ht);
}
if (stream_class->event_classes) {
+ BT_LOGD_STR("Destroying event classes.");
g_ptr_array_free(stream_class->event_classes, TRUE);
}
g_string_free(stream_class->name, TRUE);
}
+ BT_LOGD_STR("Putting event header field type.");
bt_put(stream_class->event_header_type);
+ BT_LOGD_STR("Putting packet context field type.");
bt_put(stream_class->packet_context_type);
+ BT_LOGD_STR("Putting event context field type.");
bt_put(stream_class->event_context_type);
g_free(stream_class);
}
bt_ctf_field_type_structure_create();
struct bt_ctf_field_type *_uint64_t =
get_field_type(FIELD_TYPE_ALIAS_UINT64_T);
+ struct bt_ctf_field_type *ts_begin_end_uint64_t;
if (!packet_context_type) {
BT_LOGE_STR("Cannot create empty structure field type.");
goto end;
}
+ ts_begin_end_uint64_t = bt_ctf_field_type_copy(_uint64_t);
+ if (!ts_begin_end_uint64_t) {
+ BT_LOGE_STR("Cannot copy integer field type for `timestamp_begin` and `timestamp_end` fields.");
+ ret = -1;
+ goto end;
+ }
+
/*
* We create a stream packet context as proposed in the CTF
* specification.
*/
ret = bt_ctf_field_type_structure_add_field(packet_context_type,
- _uint64_t, "timestamp_begin");
+ ts_begin_end_uint64_t, "timestamp_begin");
if (ret) {
BT_LOGE_STR("Cannot add `timestamp_begin` field to event header field type.");
goto end;
}
ret = bt_ctf_field_type_structure_add_field(packet_context_type,
- _uint64_t, "timestamp_end");
+ ts_begin_end_uint64_t, "timestamp_end");
if (ret) {
BT_LOGE_STR("Cannot add `timestamp_end` field to event header field type.");
goto end;
}
bt_put(_uint64_t);
+ bt_put(ts_begin_end_uint64_t);
+ return ret;
+}
+
+static
+int try_map_clock_class(struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *ft)
+{
+ struct bt_ctf_clock_class *mapped_clock_class = NULL;
+ int ret = 0;
+
+ if (!ft) {
+ /* Field does not exist: not an error */
+ goto end;
+ }
+
+ assert(bt_ctf_field_type_is_integer(ft));
+ mapped_clock_class =
+ bt_ctf_field_type_integer_get_mapped_clock_class(ft);
+ if (!mapped_clock_class) {
+ if (!stream_class->clock) {
+ BT_LOGW("Cannot automatically set field's type mapped clock class: stream class's clock is not set: "
+ "stream-class-addr=%p, stream-class-name=\"%s\", "
+ "stream-class-id=%" PRId64 ", ft-addr=%p",
+ stream_class, bt_ctf_stream_class_get_name(stream_class),
+ bt_ctf_stream_class_get_id(stream_class), ft);
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_integer_set_mapped_clock_class_no_check(
+ ft, stream_class->clock->clock_class);
+ if (ret) {
+ BT_LOGW("Cannot set field type's mapped clock class: "
+ "stream-class-addr=%p, stream-class-name=\"%s\", "
+ "stream-class-id=%" PRId64 ", ft-addr=%p",
+ stream_class, bt_ctf_stream_class_get_name(stream_class),
+ bt_ctf_stream_class_get_id(stream_class), ft);
+ goto end;
+ }
+
+ BT_LOGV("Automatically mapped field type to stream class's clock class: "
+ "stream-class-addr=%p, stream-class-name=\"%s\", "
+ "stream-class-id=%" PRId64 ", ft-addr=%p",
+ stream_class, bt_ctf_stream_class_get_name(stream_class),
+ bt_ctf_stream_class_get_id(stream_class), ft);
+ }
+
+end:
+ bt_put(mapped_clock_class);
+ return ret;
+}
+
+BT_HIDDEN
+int bt_ctf_stream_class_map_clock_class(
+ struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *packet_context_type,
+ struct bt_ctf_field_type *event_header_type)
+{
+ struct bt_ctf_field_type *ft = NULL;
+ int ret = 0;
+
+ assert(stream_class);
+
+ if (packet_context_type) {
+ ft = bt_ctf_field_type_structure_get_field_type_by_name(
+ packet_context_type, "timestamp_begin");
+ if (try_map_clock_class(stream_class, ft)) {
+ BT_LOGE_STR("Cannot automatically set stream class's packet context field type's `timestamp_begin` field's mapped clock class.");
+ ret = -1;
+ goto end;
+ }
+
+ bt_put(ft);
+ ft = bt_ctf_field_type_structure_get_field_type_by_name(
+ packet_context_type, "timestamp_end");
+ if (try_map_clock_class(stream_class, ft)) {
+ BT_LOGE_STR("Cannot automatically set stream class's packet context field type's `timestamp_end` field's mapped clock class.");
+ ret = -1;
+ goto end;
+ }
+
+ BT_PUT(ft);
+ }
+
+ if (event_header_type) {
+ ft = bt_ctf_field_type_structure_get_field_type_by_name(
+ event_header_type, "timestamp");
+ if (try_map_clock_class(stream_class, ft)) {
+ BT_LOGE_STR("Cannot automatically set stream class's event header field type's `timestamp` field's mapped clock class.");
+ ret = -1;
+ goto end;
+ }
+
+ BT_PUT(ft);
+ }
+
+end:
return ret;
}
projects / babeltrace.git / blobdiff