[lttng-tools.git] / src / common / ust-consumer / ust-consumer.h

/*
 * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 */

#ifndef _LTTNG_USTCONSUMER_H
#define _LTTNG_USTCONSUMER_H

#include <common/compat/errno.h>
#include <common/consumer/consumer.h>
#include <stdbool.h>

#ifdef HAVE_LIBLTTNG_UST_CTL

int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
int lttng_ustconsumer_sample_snapshot_positions(
		struct lttng_consumer_stream *stream);

int lttng_ustconsumer_get_produced_snapshot(
		struct lttng_consumer_stream *stream, unsigned long *pos);
int lttng_ustconsumer_get_consumed_snapshot(
		struct lttng_consumer_stream *stream, unsigned long *pos);

int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
		int sock, struct pollfd *consumer_sockpoll);

extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan);
extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);

int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
		struct lttng_consumer_local_data *ctx);
int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream);

void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);

void lttng_ust_flush_buffer(
		struct lttng_consumer_stream *stream, int producer_active);
int lttng_ustconsumer_get_stream_id(
		struct lttng_consumer_stream *stream, uint64_t *stream_id);
int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht);
void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata);
void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
		uint64_t len, uint64_t version,
		struct lttng_consumer_channel *channel, int timer, int wait);
int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_channel *channel, int timer, int wait);
enum sync_metadata_status lttng_ustconsumer_sync_metadata(
		struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_stream *metadata);
void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
		int producer);
void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream);
int lttng_ustconsumer_get_current_timestamp(
		struct lttng_consumer_stream *stream, uint64_t *ts);
int lttng_ustconsumer_get_sequence_number(
		struct lttng_consumer_stream *stream, uint64_t *seq);

#else /* HAVE_LIBLTTNG_UST_CTL */

static inline
ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
		struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_stream *stream, unsigned long len,
		unsigned long padding)
{
	return -ENOSYS;
}

static inline
ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
		struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_stream *uststream, unsigned long len,
		unsigned long padding)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_sample_snapshot_positions(
		struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_get_produced_snapshot(
		struct lttng_consumer_stream *stream, unsigned long *pos)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_get_consumed_snapshot(
		struct lttng_consumer_stream *stream, unsigned long *pos)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
		int sock, struct pollfd *consumer_sockpoll)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
{
	return -ENOSYS;
}

static inline
void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
{
}

static inline
void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
{
}

static inline
int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}

static inline
void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
{
}

static inline
int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
		struct lttng_consumer_local_data *ctx)
{
	return -ENOSYS;
}

static inline
int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}

static inline
void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
{
}

static inline
int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}
static inline
void lttng_ust_flush_buffer(struct lttng_consumer_stream *stream,
		int producer_active)
{
}
static inline
void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht)
{
}
static inline
void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata)
{
}
static inline
void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
{
}
static inline
int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
		uint64_t len, uint64_t version,
		struct lttng_consumer_channel *channel, int timer)
{
	return -ENOSYS;
}
static inline
int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_channel *channel, int timer, int wait)
{
	return -ENOSYS;
}
static inline
enum sync_metadata_status lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
		struct lttng_consumer_stream *metadata)
{
	return SYNC_METADATA_STATUS_ERROR;
}
static inline
void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
		int producer)
{
}
static inline
void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream)
{
}
static inline
int lttng_ustconsumer_get_current_timestamp(
		struct lttng_consumer_stream *stream, uint64_t *ts)
{
	return -ENOSYS;
}
static inline
int lttng_ustconsumer_get_sequence_number(
		struct lttng_consumer_stream *stream, uint64_t *seq)
{
	return -ENOSYS;
}
static inline
int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
		uint64_t *stream_id)
{
	return -ENOSYS;
}
#endif /* HAVE_LIBLTTNG_UST_CTL */

#endif /* _LTTNG_USTCONSUMER_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
	3	* Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	4	*
	5	* SPDX-License-Identifier: GPL-2.0-only
	6	*
	7	*/
	8
	9	#ifndef _LTTNG_USTCONSUMER_H
	10	#define _LTTNG_USTCONSUMER_H
	11
	12	#include <common/compat/errno.h>
	13	#include <common/consumer/consumer.h>
	14	#include <stdbool.h>
	15
	16	#ifdef HAVE_LIBLTTNG_UST_CTL
	17
	18	int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
	19	int lttng_ustconsumer_sample_snapshot_positions(
	20	struct lttng_consumer_stream *stream);
	21
	22	int lttng_ustconsumer_get_produced_snapshot(
	23	struct lttng_consumer_stream stream, unsigned long pos);
	24	int lttng_ustconsumer_get_consumed_snapshot(
	25	struct lttng_consumer_stream stream, unsigned long pos);
	26
	27	int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
	28	int sock, struct pollfd *consumer_sockpoll);
	29
	30	extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
	31	extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
	32	extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan);
	33	extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
	34	extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);
	35
	36	int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
	37	struct lttng_consumer_local_data *ctx);
	38	int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
	39
	40	void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
	41
	42	void lttng_ust_flush_buffer(
	43	struct lttng_consumer_stream *stream, int producer_active);
	44	int lttng_ustconsumer_get_stream_id(
	45	struct lttng_consumer_stream stream, uint64_t stream_id);
	46	int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
	47	void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht);
	48	void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata);
	49	void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
	50	int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
	51	uint64_t len, uint64_t version,
	52	struct lttng_consumer_channel *channel, int timer, int wait);
	53	int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
	54	struct lttng_consumer_channel *channel, int timer, int wait);
	55	enum sync_metadata_status lttng_ustconsumer_sync_metadata(
	56	struct lttng_consumer_local_data *ctx,
	57	struct lttng_consumer_stream *metadata);
	58	void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
	59	int producer);
	60	void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream);
	61	int lttng_ustconsumer_get_current_timestamp(
	62	struct lttng_consumer_stream stream, uint64_t ts);
	63	int lttng_ustconsumer_get_sequence_number(
	64	struct lttng_consumer_stream stream, uint64_t seq);
	65
	66	#else /* HAVE_LIBLTTNG_UST_CTL */
	67
	68	static inline
	69	ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
	70	struct lttng_consumer_local_data *ctx,
	71	struct lttng_consumer_stream *stream, unsigned long len,
	72	unsigned long padding)
	73	{
	74	return -ENOSYS;
	75	}
	76
	77	static inline
	78	ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
	79	struct lttng_consumer_local_data *ctx,
	80	struct lttng_consumer_stream *uststream, unsigned long len,
	81	unsigned long padding)
	82	{
	83	return -ENOSYS;
	84	}
	85
	86	static inline
	87	int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
	88	{
	89	return -ENOSYS;
	90	}
	91
	92	static inline
	93	int lttng_ustconsumer_sample_snapshot_positions(
	94	struct lttng_consumer_stream *stream)
	95	{
	96	return -ENOSYS;
	97	}
	98
	99	static inline
	100	int lttng_ustconsumer_get_produced_snapshot(
	101	struct lttng_consumer_stream stream, unsigned long pos)
	102	{
	103	return -ENOSYS;
	104	}
	105
	106	static inline
	107	int lttng_ustconsumer_get_consumed_snapshot(
	108	struct lttng_consumer_stream stream, unsigned long pos)
	109	{
	110	return -ENOSYS;
	111	}
	112
	113	static inline
	114	int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
	115	int sock, struct pollfd *consumer_sockpoll)
	116	{
	117	return -ENOSYS;
	118	}
	119
	120	static inline
	121	int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
	122	{
	123	return -ENOSYS;
	124	}
	125
	126	static inline
	127	void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
	128	{
	129	}
	130
	131	static inline
	132	void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
	133	{
	134	}
	135
	136	static inline
	137	int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
	138	{
	139	return -ENOSYS;
	140	}
	141
	142	static inline
	143	void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
	144	{
	145	}
	146
	147	static inline
	148	int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
	149	struct lttng_consumer_local_data *ctx)
	150	{
	151	return -ENOSYS;
	152	}
	153
	154	static inline
	155	int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
	156	{
	157	return -ENOSYS;
	158	}
	159
	160	static inline
	161	void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
	162	{
	163	}
	164
	165	static inline
	166	int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
	167	{
	168	return -ENOSYS;
	169	}
	170	static inline
	171	void lttng_ust_flush_buffer(struct lttng_consumer_stream *stream,
	172	int producer_active)
	173	{
	174	}
	175	static inline
	176	void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht)
	177	{
	178	}
	179	static inline
	180	void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata)
	181	{
	182	}
	183	static inline
	184	void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
	185	{
	186	}
	187	static inline
	188	int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
	189	uint64_t len, uint64_t version,
	190	struct lttng_consumer_channel *channel, int timer)
	191	{
	192	return -ENOSYS;
	193	}
	194	static inline
	195	int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
	196	struct lttng_consumer_channel *channel, int timer, int wait)
	197	{
	198	return -ENOSYS;
	199	}
	200	static inline
	201	enum sync_metadata_status lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
	202	struct lttng_consumer_stream *metadata)
	203	{
	204	return SYNC_METADATA_STATUS_ERROR;
	205	}
	206	static inline
	207	void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
	208	int producer)
	209	{
	210	}
	211	static inline
	212	void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream)
	213	{
	214	}
	215	static inline
	216	int lttng_ustconsumer_get_current_timestamp(
	217	struct lttng_consumer_stream stream, uint64_t ts)
	218	{
	219	return -ENOSYS;
	220	}
	221	static inline
	222	int lttng_ustconsumer_get_sequence_number(
	223	struct lttng_consumer_stream stream, uint64_t seq)
	224	{
	225	return -ENOSYS;
	226	}
	227	static inline
	228	int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
	229	uint64_t *stream_id)
	230	{
	231	return -ENOSYS;
	232	}
	233	#endif /* HAVE_LIBLTTNG_UST_CTL */
	234
	235	#endif /* _LTTNG_USTCONSUMER_H */