[babeltrace.git] / src / lib / graph / message / event.c

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
 * Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 */

#define BT_LOG_TAG "LIB/MSG-EVENT"
#include "lib/logging.h"

#include "common/assert.h"
#include "lib/assert-cond.h"
#include "compat/compiler.h"
#include "lib/object.h"
#include <babeltrace2/trace-ir/event.h>
#include "lib/trace-ir/event.h"
#include "lib/trace-ir/event-class.h"
#include "lib/trace-ir/stream-class.h"
#include <babeltrace2/trace-ir/trace.h>
#include "lib/trace-ir/clock-snapshot.h"
#include "lib/graph/graph.h"
#include <babeltrace2/graph/message.h>
#include <babeltrace2/types.h>
#include <stdbool.h>
#include <inttypes.h>

#include "event.h"

#define BT_ASSERT_PRE_DEV_MSG_IS_EVENT(_msg)				\
	BT_ASSERT_PRE_DEV_MSG_HAS_TYPE("message", (_msg), "event",	\
		BT_MESSAGE_TYPE_EVENT)

struct bt_message *bt_message_event_new(
		struct bt_graph *graph)
{
	struct bt_message_event *message = NULL;

	message = g_new0(struct bt_message_event, 1);
	if (!message) {
		BT_LIB_LOGE_APPEND_CAUSE(
			"Failed to allocate one event message.");
		goto error;
	}

	bt_message_init(&message->parent, BT_MESSAGE_TYPE_EVENT,
		(bt_object_release_func) bt_message_event_recycle, graph);
	goto end;

error:
	BT_OBJECT_PUT_REF_AND_RESET(message);

end:
	return (void *) message;
}

static
struct bt_event *create_event(struct bt_event_class *event_class,
		struct bt_packet *packet, struct bt_stream *stream,
		const char *api_func)
{
	struct bt_event *event = NULL;

	BT_ASSERT_DBG(event_class);
	BT_ASSERT_DBG(stream);
	event = bt_object_pool_create_object(&event_class->event_pool);
	if (G_UNLIKELY(!event)) {
		BT_LIB_LOGE_APPEND_CAUSE(
			"Cannot allocate one event from event class's event pool: "
			"%![ec-]+E", event_class);
		goto end;
	}

	if (G_LIKELY(!event->class)) {
		event->class = event_class;
		bt_object_get_ref_no_null_check(&event_class->base);
	}

	BT_ASSERT_DBG(!event->stream);
	event->stream = stream;
	bt_object_get_ref_no_null_check_no_parent_check(&event->stream->base);
	BT_LIB_LOGD("Set event's stream: %![event-]+e, %![stream-]+s",
		event, stream);

	if (packet) {
		BT_ASSERT_PRE_DEV_FROM_FUNC(api_func,
			"packet-stream-class-is-event-class-stream-class",
			bt_event_class_borrow_stream_class(
				event_class) == packet->stream->class,
			"Packet's stream class and event class's stream class differ: "
			"%![ec-]+E, %![packet-]+a", event, packet);
		BT_ASSERT_DBG(event->stream->class->supports_packets);
		BT_ASSERT_DBG(!event->packet);
		event->packet = packet;
		bt_object_get_ref_no_null_check_no_parent_check(&event->packet->base);
		BT_LIB_LOGD("Set event's packet: %![event-]+e, %![packet-]+a",
			event, packet);
	}

end:
	return event;
}

static inline
struct bt_message *create_event_message(
		struct bt_self_message_iterator *self_msg_iter,
		const struct bt_event_class *c_event_class,
		const struct bt_packet *c_packet,
		const struct bt_stream *c_stream, bool with_cs,
		uint64_t raw_value, const char *api_func)
{
	struct bt_message_iterator *msg_iter =
		(void *) self_msg_iter;
	struct bt_message_event *message = NULL;
	struct bt_event_class *event_class = (void *) c_event_class;
	struct bt_stream_class *stream_class;
	struct bt_packet *packet = (void *) c_packet;
	struct bt_stream *stream = (void *) c_stream;
	struct bt_event *event;

	BT_ASSERT_DBG(stream);
	BT_ASSERT_PRE_MSG_ITER_NON_NULL_FROM_FUNC(api_func, msg_iter);
	BT_ASSERT_PRE_EC_NON_NULL_FROM_FUNC(api_func, event_class);
	stream_class = bt_event_class_borrow_stream_class_inline(event_class);
	BT_ASSERT_PRE_FROM_FUNC(api_func,
		"stream-class-is-event-class-stream-class",
		bt_event_class_borrow_stream_class(event_class) ==
			stream->class,
		"Stream's class and event's stream class differ: "
		"%![ec-]+E, %![stream-]+s", event_class, stream);
	BT_ASSERT_DBG(stream_class);
	BT_ASSERT_PRE_FROM_FUNC(api_func,
		"with-default-clock-snapshot-if-stream-class-has-default-clock-class",
		(with_cs && stream_class->default_clock_class) ||
		(!with_cs && !stream_class->default_clock_class),
		"Creating an event message with a default clock snapshot, but without "
		"a default clock class, or without a default clock snapshot, "
		"but with a default clock class: ",
		"%![ec-]+E, %![sc-]+S, with-cs=%d, "
		"cs-val=%" PRIu64,
		event_class, stream_class, with_cs, raw_value);
	BT_LIB_LOGD("Creating event message object: %![ec-]+E", event_class);
	event = create_event(event_class, packet, stream, api_func);
	if (G_UNLIKELY(!event)) {
		BT_LIB_LOGE_APPEND_CAUSE(
			"Cannot create event from event class: "
			"%![ec-]+E", event_class);
		goto error;
	}

	/*
	 * Create message from pool _after_ we have everything
	 * (in this case, a valid event object) so that we never have an
	 * error condition with a non-NULL message object.
	 * Otherwise:
	 *
	 * * We cannot recycle the message on error because
	 *   bt_message_event_recycle() expects a complete
	 *   message (and the event or clock class priority map
	 *   object could be unset).
	 *
	 * * We cannot destroy the message because we would need
	 *   to notify the graph (pool owner) so that it removes the
	 *   message from its message array.
	 */
	message = (void *) bt_message_create_from_pool(
		&msg_iter->graph->event_msg_pool, msg_iter->graph);
	if (G_UNLIKELY(!message)) {
		/* bt_message_create_from_pool() logs errors */
		goto error;
	}

	if (with_cs) {
		BT_ASSERT_DBG(stream_class->default_clock_class);
		message->default_cs = bt_clock_snapshot_create(
			stream_class->default_clock_class);
		if (!message->default_cs) {
			goto error;
		}

		bt_clock_snapshot_set_raw_value(message->default_cs, raw_value);
	}

	BT_ASSERT_DBG(!message->event);
	message->event = event;

	if (packet) {
		bt_packet_set_is_frozen(packet, true);
	}

	bt_stream_freeze(stream);
	bt_event_class_freeze(event_class);
	BT_LIB_LOGD("Created event message object: "
		"%![msg-]+n, %![event-]+e", message, event);
	goto end;

error:
	BT_ASSERT(!message);
	bt_event_destroy(event);

end:
	return (void *) message;
}

BT_EXPORT
struct bt_message *bt_message_event_create(
		struct bt_self_message_iterator *msg_iter,
		const struct bt_event_class *event_class,
		const struct bt_stream *stream)
{
	BT_ASSERT_PRE_DEV_NO_ERROR();
	BT_ASSERT_PRE_STREAM_NON_NULL(stream);
	return create_event_message(msg_iter, event_class, NULL, stream,
		false, 0, __func__);
}

BT_EXPORT
struct bt_message *bt_message_event_create_with_packet(
		struct bt_self_message_iterator *msg_iter,
		const struct bt_event_class *event_class,
		const struct bt_packet *packet)
{
	BT_ASSERT_PRE_DEV_NO_ERROR();
	BT_ASSERT_PRE_PACKET_NON_NULL(packet);
	return create_event_message(msg_iter, event_class, packet,
		packet->stream, false, 0, __func__);
}

BT_EXPORT
struct bt_message *bt_message_event_create_with_default_clock_snapshot(
		struct bt_self_message_iterator *msg_iter,
		const struct bt_event_class *event_class,
		const struct bt_stream *stream,
		uint64_t raw_value)
{
	BT_ASSERT_PRE_DEV_NO_ERROR();
	BT_ASSERT_PRE_STREAM_NON_NULL(stream);
	return create_event_message(msg_iter, event_class, NULL, stream,
		true, raw_value, __func__);
}

BT_EXPORT
struct bt_message *
bt_message_event_create_with_packet_and_default_clock_snapshot(
		struct bt_self_message_iterator *msg_iter,
		const struct bt_event_class *event_class,
		const struct bt_packet *packet,
		uint64_t raw_value)
{
	BT_ASSERT_PRE_DEV_NO_ERROR();
	BT_ASSERT_PRE_PACKET_NON_NULL(packet);
	return create_event_message(msg_iter, event_class, packet,
		packet->stream, true, raw_value, __func__);
}

void bt_message_event_destroy(struct bt_message *msg)
{
	struct bt_message_event *event_msg = (void *) msg;

	BT_LIB_LOGD("Destroying event message: %!+n", msg);

	if (event_msg->event) {
		BT_LIB_LOGD("Recycling event: %!+e", event_msg->event);
		bt_event_recycle(event_msg->event);
		event_msg->event = NULL;
	}

	if (event_msg->default_cs) {
		bt_clock_snapshot_recycle(event_msg->default_cs);
		event_msg->default_cs = NULL;
	}

	g_free(msg);
}

void bt_message_event_recycle(struct bt_message *msg)
{
	struct bt_message_event *event_msg = (void *) msg;
	struct bt_graph *graph;

	BT_ASSERT_DBG(event_msg);

	if (G_UNLIKELY(!msg->graph)) {
		bt_message_event_destroy(msg);
		return;
	}

	BT_LIB_LOGD("Recycling event message: %![msg-]+n, %![event-]+e",
		msg, event_msg->event);
	bt_message_reset(msg);
	BT_ASSERT_DBG(event_msg->event);
	bt_event_recycle(event_msg->event);
	event_msg->event = NULL;

	if (event_msg->default_cs) {
		bt_clock_snapshot_recycle(event_msg->default_cs);
		event_msg->default_cs = NULL;
	}

	graph = msg->graph;
	msg->graph = NULL;
	bt_object_pool_recycle_object(&graph->event_msg_pool, msg);
}

#define BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(_msg)			\
	do {								\
		BT_ASSERT_PRE_DEV_MSG_NON_NULL(_msg);			\
		BT_ASSERT_PRE_DEV_MSG_IS_EVENT(_msg);			\
	} while (0)

static inline
struct bt_event *borrow_event(struct bt_message *message)
{
	struct bt_message_event *event_message;

	event_message = container_of(message,
			struct bt_message_event, parent);
	return event_message->event;
}

BT_EXPORT
struct bt_event *bt_message_event_borrow_event(
		struct bt_message *message)
{
	BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(message);
	return borrow_event(message);
}

BT_EXPORT
const struct bt_event *bt_message_event_borrow_event_const(
		const struct bt_message *message)
{
	BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(message);
	return borrow_event((void *) message);
}

BT_EXPORT
const struct bt_clock_snapshot *
bt_message_event_borrow_default_clock_snapshot_const(
		const struct bt_message *msg)
{
	struct bt_message_event *event_msg = (void *) msg;
	struct bt_stream_class *stream_class;

	BT_ASSERT_PRE_DEV_MSG_NON_NULL(msg);
	BT_ASSERT_PRE_DEV_MSG_IS_EVENT(msg);
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_msg->event->class);
	BT_ASSERT_DBG(stream_class);
	BT_ASSERT_PRE_DEV_MSG_SC_DEF_CLK_CLS(msg, stream_class);
	return event_msg->default_cs;
}

BT_EXPORT
const bt_clock_class *
bt_message_event_borrow_stream_class_default_clock_class_const(
		const bt_message *msg)
{
	struct bt_message_event *event_msg = (void *) msg;
	struct bt_stream_class *stream_class;

	BT_ASSERT_PRE_DEV_MSG_NON_NULL(msg);
	BT_ASSERT_PRE_DEV_MSG_IS_EVENT(msg);
	stream_class = bt_event_class_borrow_stream_class_inline(
		event_msg->event->class);
	BT_ASSERT_DBG(stream_class);
	return stream_class->default_clock_class;
}
Commit	Line	Data
d6e69534	1	/*
0235b0db MJ	2	* SPDX-License-Identifier: MIT
0235b0db MJ	3	*
d6e69534 PP	4	* Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
d6e69534 PP	5	* Copyright 2016 Jérémie Galarneau <jeremie.galarneau@efficios.com>
d6e69534 PP	6	*/
d6e69534 PP	7
350ad6c1	8	#define BT_LOG_TAG "LIB/MSG-EVENT"
c2d9d9cf	9	#include "lib/logging.h"
d6e69534	10
578e048b	11	#include "common/assert.h"
d98421f2	12	#include "lib/assert-cond.h"
578e048b MJ	13	#include "compat/compiler.h"
578e048b MJ	14	#include "lib/object.h"
3fadfbc0	15	#include <babeltrace2/trace-ir/event.h>
578e048b MJ	16	#include "lib/trace-ir/event.h"
	17	#include "lib/trace-ir/event-class.h"
	18	#include "lib/trace-ir/stream-class.h"
3fadfbc0	19	#include <babeltrace2/trace-ir/trace.h>
578e048b MJ	20	#include "lib/trace-ir/clock-snapshot.h"
578e048b MJ	21	#include "lib/graph/graph.h"
43c59509	22	#include <babeltrace2/graph/message.h>
3fadfbc0	23	#include <babeltrace2/types.h>
d6e69534 PP	24	#include <stdbool.h>
	25	#include <inttypes.h>
	26
578e048b MJ	27	#include "event.h"
578e048b MJ	28
1778c2a4 PP	29	#define BT_ASSERT_PRE_DEV_MSG_IS_EVENT(_msg) \
	30	BT_ASSERT_PRE_DEV_MSG_HAS_TYPE("message", (_msg), "event", \
	31	BT_MESSAGE_TYPE_EVENT)
d6e69534	32
d6e69534 PP	33	struct bt_message *bt_message_event_new(
	34	struct bt_graph *graph)
	35	{
	36	struct bt_message_event *message = NULL;
	37
	38	message = g_new0(struct bt_message_event, 1);
	39	if (!message) {
870631a2 PP	40	BT_LIB_LOGE_APPEND_CAUSE(
870631a2 PP	41	"Failed to allocate one event message.");
d6e69534 PP	42	goto error;
	43	}
	44
	45	bt_message_init(&message->parent, BT_MESSAGE_TYPE_EVENT,
	46	(bt_object_release_func) bt_message_event_recycle, graph);
	47	goto end;
	48
	49	error:
	50	BT_OBJECT_PUT_REF_AND_RESET(message);
	51
	52	end:
	53	return (void *) message;
	54	}
	55
cbb76258 PP	56	static
cbb76258 PP	57	struct bt_event create_event(struct bt_event_class event_class,
1778c2a4 PP	58	struct bt_packet packet, struct bt_stream stream,
1778c2a4 PP	59	const char *api_func)
cbb76258 PP	60	{
	61	struct bt_event *event = NULL;
	62
	63	BT_ASSERT_DBG(event_class);
	64	BT_ASSERT_DBG(stream);
	65	event = bt_object_pool_create_object(&event_class->event_pool);
	66	if (G_UNLIKELY(!event)) {
	67	BT_LIB_LOGE_APPEND_CAUSE(
	68	"Cannot allocate one event from event class's event pool: "
	69	"%![ec-]+E", event_class);
	70	goto end;
	71	}
	72
	73	if (G_LIKELY(!event->class)) {
	74	event->class = event_class;
	75	bt_object_get_ref_no_null_check(&event_class->base);
	76	}
	77
	78	BT_ASSERT_DBG(!event->stream);
	79	event->stream = stream;
	80	bt_object_get_ref_no_null_check_no_parent_check(&event->stream->base);
	81	BT_LIB_LOGD("Set event's stream: %![event-]+e, %![stream-]+s",
	82	event, stream);
	83
	84	if (packet) {
1778c2a4 PP	85	BT_ASSERT_PRE_DEV_FROM_FUNC(api_func,
	86	"packet-stream-class-is-event-class-stream-class",
	87	bt_event_class_borrow_stream_class(
	88	event_class) == packet->stream->class,
cbb76258 PP	89	"Packet's stream class and event class's stream class differ: "
	90	"%![ec-]+E, %![packet-]+a", event, packet);
	91	BT_ASSERT_DBG(event->stream->class->supports_packets);
	92	BT_ASSERT_DBG(!event->packet);
	93	event->packet = packet;
	94	bt_object_get_ref_no_null_check_no_parent_check(&event->packet->base);
	95	BT_LIB_LOGD("Set event's packet: %![event-]+e, %![packet-]+a",
	96	event, packet);
	97	}
	98
	99	end:
	100	return event;
	101	}
	102
2c091c04 PP	103	static inline
2c091c04 PP	104	struct bt_message *create_event_message(
d6e69534	105	struct bt_self_message_iterator *self_msg_iter,
58085ca4	106	const struct bt_event_class *c_event_class,
26fc5aed PP	107	const struct bt_packet *c_packet,
26fc5aed PP	108	const struct bt_stream *c_stream, bool with_cs,
1778c2a4	109	uint64_t raw_value, const char *api_func)
d6e69534	110	{
9a2c8b8e	111	struct bt_message_iterator *msg_iter =
d6e69534 PP	112	(void *) self_msg_iter;
d6e69534 PP	113	struct bt_message_event *message = NULL;
58085ca4	114	struct bt_event_class event_class = (void ) c_event_class;
2c091c04	115	struct bt_stream_class *stream_class;
58085ca4	116	struct bt_packet packet = (void ) c_packet;
26fc5aed	117	struct bt_stream stream = (void ) c_stream;
d6e69534 PP	118	struct bt_event *event;
d6e69534 PP	119
98b15851	120	BT_ASSERT_DBG(stream);
1778c2a4 PP	121	BT_ASSERT_PRE_MSG_ITER_NON_NULL_FROM_FUNC(api_func, msg_iter);
	122	BT_ASSERT_PRE_EC_NON_NULL_FROM_FUNC(api_func, event_class);
	123	stream_class = bt_event_class_borrow_stream_class_inline(event_class);
	124	BT_ASSERT_PRE_FROM_FUNC(api_func,
	125	"stream-class-is-event-class-stream-class",
	126	bt_event_class_borrow_stream_class(event_class) ==
	127	stream->class,
cbb76258 PP	128	"Stream's class and event's stream class differ: "
cbb76258 PP	129	"%![ec-]+E, %![stream-]+s", event_class, stream);
98b15851	130	BT_ASSERT_DBG(stream_class);
1778c2a4 PP	131	BT_ASSERT_PRE_FROM_FUNC(api_func,
	132	"with-default-clock-snapshot-if-stream-class-has-default-clock-class",
	133	(with_cs && stream_class->default_clock_class) \|\|
2c091c04 PP	134	(!with_cs && !stream_class->default_clock_class),
	135	"Creating an event message with a default clock snapshot, but without "
	136	"a default clock class, or without a default clock snapshot, "
	137	"but with a default clock class: ",
	138	"%![ec-]+E, %![sc-]+S, with-cs=%d, "
	139	"cs-val=%" PRIu64,
	140	event_class, stream_class, with_cs, raw_value);
	141	BT_LIB_LOGD("Creating event message object: %![ec-]+E", event_class);
1778c2a4	142	event = create_event(event_class, packet, stream, api_func);
91d81473	143	if (G_UNLIKELY(!event)) {
870631a2 PP	144	BT_LIB_LOGE_APPEND_CAUSE(
870631a2 PP	145	"Cannot create event from event class: "
d6e69534 PP	146	"%![ec-]+E", event_class);
	147	goto error;
	148	}
	149
	150	/*
	151	* Create message from pool _after_ we have everything
	152	* (in this case, a valid event object) so that we never have an
	153	* error condition with a non-NULL message object.
	154	* Otherwise:
	155	*
	156	* * We cannot recycle the message on error because
	157	* bt_message_event_recycle() expects a complete
	158	* message (and the event or clock class priority map
	159	* object could be unset).
	160	*
	161	* * We cannot destroy the message because we would need
	162	* to notify the graph (pool owner) so that it removes the
	163	* message from its message array.
	164	*/
	165	message = (void *) bt_message_create_from_pool(
	166	&msg_iter->graph->event_msg_pool, msg_iter->graph);
91d81473	167	if (G_UNLIKELY(!message)) {
d6e69534 PP	168	/* bt_message_create_from_pool() logs errors */
	169	goto error;
	170	}
	171
2c091c04	172	if (with_cs) {
98b15851	173	BT_ASSERT_DBG(stream_class->default_clock_class);
2c091c04 PP	174	message->default_cs = bt_clock_snapshot_create(
	175	stream_class->default_clock_class);
	176	if (!message->default_cs) {
	177	goto error;
	178	}
	179
	180	bt_clock_snapshot_set_raw_value(message->default_cs, raw_value);
	181	}
	182
98b15851	183	BT_ASSERT_DBG(!message->event);
d6e69534	184	message->event = event;
26fc5aed PP	185
	186	if (packet) {
	187	bt_packet_set_is_frozen(packet, true);
	188	}
	189
	190	bt_stream_freeze(stream);
d6e69534 PP	191	bt_event_class_freeze(event_class);
	192	BT_LIB_LOGD("Created event message object: "
	193	"%![msg-]+n, %![event-]+e", message, event);
	194	goto end;
	195
	196	error:
	197	BT_ASSERT(!message);
	198	bt_event_destroy(event);
	199
	200	end:
	201	return (void *) message;
	202	}
	203
1353b066	204	BT_EXPORT
2c091c04	205	struct bt_message *bt_message_event_create(
26fc5aed PP	206	struct bt_self_message_iterator *msg_iter,
	207	const struct bt_event_class *event_class,
	208	const struct bt_stream *stream)
	209	{
17f3083a	210	BT_ASSERT_PRE_DEV_NO_ERROR();
d5b13b9b	211	BT_ASSERT_PRE_STREAM_NON_NULL(stream);
1778c2a4 PP	212	return create_event_message(msg_iter, event_class, NULL, stream,
1778c2a4 PP	213	false, 0, __func__);
26fc5aed PP	214	}
26fc5aed PP	215
1353b066	216	BT_EXPORT
26fc5aed	217	struct bt_message *bt_message_event_create_with_packet(
2c091c04 PP	218	struct bt_self_message_iterator *msg_iter,
	219	const struct bt_event_class *event_class,
	220	const struct bt_packet *packet)
	221	{
17f3083a	222	BT_ASSERT_PRE_DEV_NO_ERROR();
d5b13b9b	223	BT_ASSERT_PRE_PACKET_NON_NULL(packet);
26fc5aed	224	return create_event_message(msg_iter, event_class, packet,
1778c2a4	225	packet->stream, false, 0, __func__);
2c091c04 PP	226	}
2c091c04 PP	227
1353b066	228	BT_EXPORT
2c091c04	229	struct bt_message *bt_message_event_create_with_default_clock_snapshot(
26fc5aed PP	230	struct bt_self_message_iterator *msg_iter,
	231	const struct bt_event_class *event_class,
	232	const struct bt_stream *stream,
	233	uint64_t raw_value)
	234	{
17f3083a	235	BT_ASSERT_PRE_DEV_NO_ERROR();
d5b13b9b	236	BT_ASSERT_PRE_STREAM_NON_NULL(stream);
26fc5aed	237	return create_event_message(msg_iter, event_class, NULL, stream,
1778c2a4	238	true, raw_value, __func__);
26fc5aed PP	239	}
26fc5aed PP	240
1353b066	241	BT_EXPORT
26fc5aed PP	242	struct bt_message *
26fc5aed PP	243	bt_message_event_create_with_packet_and_default_clock_snapshot(
2c091c04 PP	244	struct bt_self_message_iterator *msg_iter,
	245	const struct bt_event_class *event_class,
	246	const struct bt_packet *packet,
	247	uint64_t raw_value)
	248	{
17f3083a	249	BT_ASSERT_PRE_DEV_NO_ERROR();
d5b13b9b	250	BT_ASSERT_PRE_PACKET_NON_NULL(packet);
2c091c04	251	return create_event_message(msg_iter, event_class, packet,
1778c2a4	252	packet->stream, true, raw_value, __func__);
2c091c04 PP	253	}
2c091c04 PP	254
d6e69534 PP	255	void bt_message_event_destroy(struct bt_message *msg)
	256	{
	257	struct bt_message_event event_msg = (void ) msg;
	258
	259	BT_LIB_LOGD("Destroying event message: %!+n", msg);
	260
	261	if (event_msg->event) {
	262	BT_LIB_LOGD("Recycling event: %!+e", event_msg->event);
	263	bt_event_recycle(event_msg->event);
	264	event_msg->event = NULL;
	265	}
	266
2c091c04 PP	267	if (event_msg->default_cs) {
	268	bt_clock_snapshot_recycle(event_msg->default_cs);
	269	event_msg->default_cs = NULL;
	270	}
	271
d6e69534 PP	272	g_free(msg);
	273	}
	274
d6e69534 PP	275	void bt_message_event_recycle(struct bt_message *msg)
	276	{
	277	struct bt_message_event event_msg = (void ) msg;
	278	struct bt_graph *graph;
	279
98b15851	280	BT_ASSERT_DBG(event_msg);
d6e69534	281
91d81473	282	if (G_UNLIKELY(!msg->graph)) {
d6e69534 PP	283	bt_message_event_destroy(msg);
	284	return;
	285	}
	286
	287	BT_LIB_LOGD("Recycling event message: %![msg-]+n, %![event-]+e",
	288	msg, event_msg->event);
	289	bt_message_reset(msg);
98b15851	290	BT_ASSERT_DBG(event_msg->event);
d6e69534 PP	291	bt_event_recycle(event_msg->event);
d6e69534 PP	292	event_msg->event = NULL;
2c091c04 PP	293
	294	if (event_msg->default_cs) {
	295	bt_clock_snapshot_recycle(event_msg->default_cs);
	296	event_msg->default_cs = NULL;
	297	}
	298
d6e69534 PP	299	graph = msg->graph;
	300	msg->graph = NULL;
	301	bt_object_pool_recycle_object(&graph->event_msg_pool, msg);
	302	}
	303
1778c2a4 PP	304	#define BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(_msg) \
	305	do { \
	306	BT_ASSERT_PRE_DEV_MSG_NON_NULL(_msg); \
	307	BT_ASSERT_PRE_DEV_MSG_IS_EVENT(_msg); \
	308	} while (0)
	309
d6e69534 PP	310	static inline
	311	struct bt_event borrow_event(struct bt_message message)
	312	{
	313	struct bt_message_event *event_message;
	314
d6e69534 PP	315	event_message = container_of(message,
	316	struct bt_message_event, parent);
	317	return event_message->event;
	318	}
	319
1353b066	320	BT_EXPORT
d6e69534 PP	321	struct bt_event *bt_message_event_borrow_event(
	322	struct bt_message *message)
	323	{
1778c2a4	324	BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(message);
d6e69534 PP	325	return borrow_event(message);
	326	}
	327
1353b066	328	BT_EXPORT
d6e69534 PP	329	const struct bt_event *bt_message_event_borrow_event_const(
	330	const struct bt_message *message)
	331	{
1778c2a4	332	BT_ASSERT_PRE_DEV_FOR_BORROW_EVENTS(message);
d6e69534 PP	333	return borrow_event((void *) message);
d6e69534 PP	334	}
2c091c04	335
1353b066	336	BT_EXPORT
0cbc2c33	337	const struct bt_clock_snapshot *
2c091c04	338	bt_message_event_borrow_default_clock_snapshot_const(
0cbc2c33	339	const struct bt_message *msg)
2c091c04 PP	340	{
	341	struct bt_message_event event_msg = (void ) msg;
	342	struct bt_stream_class *stream_class;
	343
d5b13b9b	344	BT_ASSERT_PRE_DEV_MSG_NON_NULL(msg);
1778c2a4	345	BT_ASSERT_PRE_DEV_MSG_IS_EVENT(msg);
33931ab8	346	stream_class = bt_event_class_borrow_stream_class_inline(
2c091c04	347	event_msg->event->class);
98b15851	348	BT_ASSERT_DBG(stream_class);
d5b13b9b	349	BT_ASSERT_PRE_DEV_MSG_SC_DEF_CLK_CLS(msg, stream_class);
0cbc2c33	350	return event_msg->default_cs;
2c091c04	351	}
33931ab8	352
1353b066	353	BT_EXPORT
33931ab8 PP	354	const bt_clock_class *
	355	bt_message_event_borrow_stream_class_default_clock_class_const(
	356	const bt_message *msg)
	357	{
	358	struct bt_message_event event_msg = (void ) msg;
	359	struct bt_stream_class *stream_class;
	360
d5b13b9b	361	BT_ASSERT_PRE_DEV_MSG_NON_NULL(msg);
1778c2a4	362	BT_ASSERT_PRE_DEV_MSG_IS_EVENT(msg);
33931ab8 PP	363	stream_class = bt_event_class_borrow_stream_class_inline(
33931ab8 PP	364	event_msg->event->class);
98b15851	365	BT_ASSERT_DBG(stream_class);
33931ab8 PP	366	return stream_class->default_clock_class;
33931ab8 PP	367	}