[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)

BT_HIDDEN
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;
}

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__);
}

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__);
}

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__);
}

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__);
}

BT_HIDDEN
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);
}

BT_HIDDEN
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;
}

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

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);
}

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;
}

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