#include <babeltrace/ctf-ir/event-fields-internal.h>
#include <babeltrace/ctf-ir/event-types-internal.h>
#include <babeltrace/ctf-ir/event-internal.h>
+#include <babeltrace/ctf-ir/stream-class.h>
#include <babeltrace/ctf-writer/writer-internal.h>
#include <babeltrace/compiler.h>
return event_class;
}
+const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class)
+{
+ const char *name = NULL;
+
+ if (!event_class) {
+ goto end;
+ }
+
+ name = g_quark_to_string(event_class->name);
+end:
+ return name;
+}
+
+int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
+{
+ int64_t ret;
+
+ if (!event_class || !event_class->id_set) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = (int64_t) event_class->id;
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
+ uint32_t id)
+{
+ int ret = 0;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ if (event_class->stream_class) {
+ /*
+ * We don't allow changing the id if the event class has already
+ * been added to a stream class.
+ */
+ ret = -1;
+ goto end;
+ }
+
+ event_class->id = id;
+ event_class->id_set = 1;
+end:
+ return ret;
+}
+
+struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
+ struct bt_ctf_event_class *event_class)
+{
+ struct bt_ctf_stream_class *stream_class = NULL;
+
+ if (!event_class) {
+ goto end;
+ }
+
+ stream_class = event_class->stream_class;
+ bt_ctf_stream_class_get(stream_class);
+end:
+ return stream_class;
+}
+
int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
struct bt_ctf_field_type *type,
const char *name)
return ret;
}
+int64_t bt_ctf_event_class_get_field_count(
+ struct bt_ctf_event_class *event_class)
+{
+ int64_t ret;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
+ const char **field_name, struct bt_ctf_field_type **field_type,
+ size_t index)
+{
+ int ret;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_structure_get_field(event_class->fields,
+ field_name, field_type, index);
+end:
+ return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
+ struct bt_ctf_event_class *event_class, const char *name)
+{
+ GQuark name_quark;
+ struct bt_ctf_field_type *field_type = NULL;
+
+ if (!event_class || !name) {
+ goto end;
+ }
+
+ name_quark = g_quark_try_string(name);
+ if (!name_quark) {
+ goto end;
+ }
+
+ /*
+ * No need to increment field_type's reference count since getting it
+ * from the structure already does.
+ */
+ field_type = bt_ctf_field_type_structure_get_field_type_by_name(
+ event_class->fields, name);
+end:
+ return field_type;
+}
+
void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
{
if (!event_class) {
return event;
}
+struct bt_ctf_event_class *bt_ctf_event_get_class(struct bt_ctf_event *event)
+{
+ struct bt_ctf_event_class *event_class = NULL;
+
+ if (!event) {
+ goto end;
+ }
+
+ event_class = event->event_class;
+ bt_ctf_event_class_get(event_class);
+end:
+ return event_class;
+}
+
+struct bt_ctf_clock *bt_ctf_event_get_clock(struct bt_ctf_event *event)
+{
+ struct bt_ctf_clock *clock = NULL;
+ struct bt_ctf_event_class *event_class;
+ struct bt_ctf_stream_class *stream_class;
+
+ if (!event) {
+ goto end;
+ }
+
+ event_class = bt_ctf_event_get_class(event);
+ if (!event_class) {
+ goto end;
+ }
+
+ stream_class = bt_ctf_event_class_get_stream_class(event_class);
+ if (!stream_class) {
+ goto error_put_event_class;
+ }
+
+ clock = bt_ctf_stream_class_get_clock(stream_class);
+ if (!clock) {
+ goto error_put_stream_class;
+ }
+
+error_put_stream_class:
+ bt_ctf_stream_class_put(stream_class);
+error_put_event_class:
+ bt_ctf_event_class_put(event_class);
+end:
+ return clock;
+}
+
int bt_ctf_event_set_payload(struct bt_ctf_event *event,
const char *name,
struct bt_ctf_field *value)
return field;
}
+struct bt_ctf_field *bt_ctf_event_get_payload_by_index(
+ struct bt_ctf_event *event, size_t index)
+{
+ struct bt_ctf_field *field = NULL;
+
+ if (!event) {
+ goto end;
+ }
+
+ field = bt_ctf_field_structure_get_field_by_index(event->fields_payload,
+ index);
+end:
+ return field;
+}
+
void bt_ctf_event_get(struct bt_ctf_event *event)
{
if (!event) {
return;
}
+ /*
+ * Don't call put() on the stream class. See comment in
+ * bt_ctf_event_class_set_stream_class for explanation.
+ */
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);
}
BT_HIDDEN
-int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
- uint32_t id)
+int bt_ctf_event_class_set_stream_class(struct bt_ctf_event_class *event_class,
+ struct bt_ctf_stream_class *stream_class)
{
int ret = 0;
- if (event_class->id_set && id != event_class->id) {
+ if (!event_class) {
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) {
+ /* Allow a NULL stream_class to unset the current stream_class */
+ if (stream_class && event_class->stream_class) {
ret = -1;
goto end;
}
- event_class->stream_id = id;
- event_class->stream_id_set = 1;
+ event_class->stream_class = stream_class;
+ /*
+ * We don't get() the stream_class since doing so would introduce
+ * a circular ownership between event classes and stream classes.
+ *
+ * A stream class will always unset itself from its events before
+ * being destroyed. This ensures that a user won't get a pointer
+ * to a stale stream class instance from an event class.
+ */
end:
return ret;
}
struct metadata_context *context)
{
int ret = 0;
+ int64_t stream_id;
assert(event_class);
assert(context);
+ stream_id = bt_ctf_stream_class_get_id(event_class->stream_class);
+ if (stream_id < 0) {
+ ret = -1;
+ goto end;
+ }
+
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_string_append_printf(context->string, "event {\n\tname = \"%s\";\n\tid = %u;\n\tstream_id = %" PRId64 ";\n",
g_quark_to_string(event_class->name),
event_class->id,
- event_class->stream_id);
+ stream_id);
if (event_class->context) {
g_string_append(context->string, "\tcontext := ");
return stream_class;
}
+struct bt_ctf_clock *bt_ctf_stream_class_get_clock(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_clock *clock = NULL;
+
+ if (!stream_class || !stream_class->clock) {
+ goto end;
+ }
+
+ clock = stream_class->clock;
+ bt_ctf_clock_get(clock);
+end:
+ return clock;
+}
+
int bt_ctf_stream_class_set_clock(struct bt_ctf_stream_class *stream_class,
struct bt_ctf_clock *clock)
{
return ret;
}
+int64_t bt_ctf_stream_class_get_id(struct bt_ctf_stream_class *stream_class)
+{
+ int64_t ret;
+
+ if (!stream_class || !stream_class->id_set) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = (int64_t) stream_class->id;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_id(struct bt_ctf_stream_class *stream_class,
+ uint32_t id)
+{
+ int ret = 0;
+
+ if (!stream_class) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class->id = id;
+ stream_class->id_set = 1;
+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;
+ int64_t event_id;
if (!stream_class || !event_class) {
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;
+ /* Only set an event id if none was explicitly set before */
+ event_id = bt_ctf_event_class_get_id(event_class);
+ if (event_id < 0) {
+ if (bt_ctf_event_class_set_id(event_class,
+ stream_class->next_event_id++)) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ ret = bt_ctf_event_class_set_stream_class(event_class, stream_class);
+ if (ret) {
goto end;
}
(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 bt_ctf_stream_class_serialize(struct bt_ctf_stream_class *stream_class,
struct metadata_context *context)
{
- int ret = 0;
+ int64_t ret = 0;
size_t i;
g_string_assign(context->field_name, "");
}
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;
}
bt_ctf_clock_put(stream_class->clock);
if (stream_class->event_classes) {
+ size_t i;
+
+ /* Unregister this stream class from the event classes */
+ for (i = 0; i < stream_class->event_classes->len; i++) {
+ struct bt_ctf_event_class *event_class =
+ g_ptr_array_index(stream_class->event_classes,
+ i);
+
+ bt_ctf_event_class_set_stream_class(event_class, NULL);
+ }
+
g_ptr_array_free(stream_class->event_classes, TRUE);
}
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;
+ int64_t stream_id = bt_ctf_stream_class_get_id(stream_class);
+ if (stream_id < 0) {
+ if (bt_ctf_stream_class_set_id(stream->stream_class,
+ writer->next_stream_id++)) {
+ goto error;
+ }
}
+ for (i = 0; i < writer->stream_classes->len; i++) {
+ if (stream_id == bt_ctf_stream_class_get_id(
+ writer->stream_classes->pdata[i])) {
+ /* Duplicate stream id found */
+ goto error;
+ }
+ }
bt_ctf_stream_class_get(stream->stream_class);
g_ptr_array_add(writer->stream_classes, stream->stream_class);
}
GQuark name;
int id_set;
uint32_t id;
- int stream_id_set;
- uint32_t stream_id;
+ struct bt_ctf_stream_class *stream_class;
/* Structure type containing the event's context */
struct bt_ctf_field_type *context;
/* Structure type containing the event's fields */
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);
+int bt_ctf_event_class_set_stream_class(struct bt_ctf_event_class *event_class,
+ struct bt_ctf_stream_class *stream_class);
BT_HIDDEN
int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
* http://www.efficios.com/ctf
*/
+#include <stdint.h>
+#include <stddef.h>
+
#ifdef __cplusplus
extern "C" {
#endif
struct bt_ctf_event;
struct bt_ctf_field;
struct bt_ctf_field_type;
+struct bt_ctf_stream_class;
/*
* bt_ctf_event_class_create: create an event class.
*
* Allocate a new event class of the given name. The creation of an event class
- * sets its reference count to 1.
+ * sets its reference count to 1. A unique event id is automatically assigned
+ * to the event class.
*
* @param name Event class name (will be copied).
*
*/
extern struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name);
+/*
+ * bt_ctf_event_class_get_name: Get an event class' name.
+ *
+ * @param event_class Event class.
+ *
+ * Returns the event class' name, NULL on error.
+ */
+extern const char *bt_ctf_event_class_get_name(
+ struct bt_ctf_event_class *event_class);
+
+/*
+ * bt_ctf_event_class_get_id: Get an event class' id.
+ *
+ * @param event_class Event class.
+ *
+ * Returns the event class' id, a negative value on error.
+ */
+extern int64_t bt_ctf_event_class_get_id(
+ struct bt_ctf_event_class *event_class);
+
+/*
+ * bt_ctf_event_class_set_id: Set an event class' id.
+ *
+ * Set an event class' id. Must be unique stream-wise.
+ * Note that event classes are already assigned a unique id when added to a
+ * stream class if none was set explicitly.
+ *
+ * @param event_class Event class.
+ * @param id Event class id.
+ *
+ * Returns 0 on success, a negative value on error.
+ */
+extern int bt_ctf_event_class_set_id(
+ struct bt_ctf_event_class *event_class, uint32_t id);
+
+/*
+ * bt_ctf_event_class_get_stream_class: Get an event class' stream class.
+ *
+ * @param event_class Event class.
+ *
+ * Returns the event class' stream class, NULL on error or if the event class
+ * is not associated with a stream class.
+ */
+extern struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
+ struct bt_ctf_event_class *event_class);
+
/*
* bt_ctf_event_class_add_field: add a field to an event class.
*
struct bt_ctf_field_type *type,
const char *name);
+/*
+ * bt_ctf_event_class_get_field_count: Get an event class' field count.
+ *
+ * @param event_class Event class.
+ *
+ * Returns the event class' field count, a negative value on error.
+ */
+extern int64_t bt_ctf_event_class_get_field_count(
+ struct bt_ctf_event_class *event_class);
+
+/*
+ * bt_ctf_event_class_get_field: Get event class' field type and name by index.
+ *
+ * @param event_class Event class.
+ * @param field_name Pointer to a const char* where the field's name will
+ * be returned.
+ * @param field_type Pointer to a bt_ctf_field_type* where the field's type will
+ * be returned.
+ * @param index Index of field.
+ *
+ * Returns 0 on success, a negative error on value.
+ */
+extern int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
+ const char **field_name, struct bt_ctf_field_type **field_type,
+ size_t index);
+
+/*
+ * bt_ctf_event_class_get_field_type_by_name: Get an event class's field by name
+ *
+ * @param event_class Event class.
+ * @param name Name of the field.
+ *
+ * Returns a field type on success, NULL on error.
+ */
+extern struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
+ struct bt_ctf_event_class *event_class, const char *name);
+
/*
* bt_ctf_event_class__get and bt_ctf_event_class_put: increment and decrement
* the event class' reference count.
extern struct bt_ctf_event *bt_ctf_event_create(
struct bt_ctf_event_class *event_class);
+/*
+ * bt_ctf_event_get_class: get an event's class.
+ *
+ * @param event Event.
+ *
+ * Returns the event's class, NULL on error.
+ */
+extern struct bt_ctf_event_class *bt_ctf_event_get_class(
+ struct bt_ctf_event *event);
+
+/*
+ * bt_ctf_event_get_clock: get an event's associated clock.
+ *
+ * @param event Event.
+ *
+ * Returns the event's clock, NULL on error.
+ */
+extern struct bt_ctf_clock *bt_ctf_event_get_clock(
+ struct bt_ctf_event *event);
+
+/*
+ * bt_ctf_event_get_payload: get an event's field.
+ *
+ * Returns the field matching "name". bt_ctf_field_put() must be called on the
+ * returned value.
+ *
+ * @param event Event instance.
+ * @param name Event field name.
+ *
+ * Returns a field instance on success, NULL on error.
+ */
+extern struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
+ const char *name);
+
/*
* bt_ctf_event_set_payload: set an event's field.
*
struct bt_ctf_field *value);
/*
- * bt_ctf_event_get_payload: get an event's field.
+ * bt_ctf_event_get_payload_by_index: Get event's field by index.
*
- * Returns the field matching "name". bt_ctf_field_put() must be called on the
- * returned value.
+ * Returns the field associated with the provided index. bt_ctf_field_put()
+ * must be called on the returned value. The indexes to be provided are
+ * the same as can be retrieved from the event class.
*
- * @param event Event instance.
- * @param name Event field name.
+ * @param event Event.
+ * @param index Index of field.
*
- * Returns a field instance on success, NULL on error.
+ * Returns the event's field, NULL on error.
*/
-extern struct bt_ctf_field *bt_ctf_event_get_payload(struct bt_ctf_event *event,
- const char *name);
+extern struct bt_ctf_field *bt_ctf_event_get_payload_by_index(
+ struct bt_ctf_event *event, size_t index);
/*
* bt_ctf_event_get and bt_ctf_event_put: increment and decrement
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);
*/
extern struct bt_ctf_stream_class *bt_ctf_stream_class_create(const char *name);
+/*
+ * bt_ctf_stream_class_get_clock: get the clock associated with a stream class.
+ *
+ * @param stream_class Stream class.
+ *
+ * Returns a clock instance, NULL on error.
+ */
+extern struct bt_ctf_clock *bt_ctf_stream_class_get_clock(
+ struct bt_ctf_stream_class *stream_class);
+
/*
* bt_ctf_stream_class_set_clock: assign a clock to a stream class.
*
struct bt_ctf_stream_class *stream_class,
struct bt_ctf_clock *clock);
+/*
+ * bt_ctf_stream_class_get_id: Get a stream class' id.
+ *
+ * @param stream_class Stream class.
+ *
+ * Returns the stream class' id, a negative value on error.
+ */
+extern int64_t bt_ctf_stream_class_get_id(
+ struct bt_ctf_stream_class *stream_class);
+
+/*
+ * bt_ctf_stream_class_set_id: Set a stream class' id.
+ *
+ * Set a stream class' id. Must be unique trace-wise.
+ * Note that stream classes are assigned a unique id when a stream instance
+ * is created for the first time from a trace or writer.
+ *
+ * @param stream_class Stream class.
+ * @param id Stream class id.
+ *
+ * Returns 0 on success, a negative value on error.
+ */
+extern int bt_ctf_stream_class_set_id(
+ struct bt_ctf_stream_class *stream_class, uint32_t id);
+
/*
* bt_ctf_stream_class_set_clock: assign a clock to a 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;
+ uint64_t next_stream_id;
};
struct environment_variable {
projects / babeltrace.git / commitdiff
