[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>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef _LTTNG_USTCONSUMER_H
#define _LTTNG_USTCONSUMER_H

#include <config.h>
#include <errno.h>

#include <common/consumer.h>

#ifdef HAVE_LIBLTTNG_UST_CTL

int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);

int lttng_ustconsumer_get_produced_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 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);

int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
		unsigned long *off);
void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream);
int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);

#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_get_produced_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
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_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
		unsigned long *off)
{
	return -ENOSYS;
}
static inline
int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
{
	return -ENOSYS;
}
static inline
void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream)
{
	return NULL;
}
#endif /* HAVE_LIBLTTNG_UST_CTL */

#endif /* _LTTNG_USTCONSUMER_H */
Commit	Line	Data
3bd1e081 MD	1	/*
	2	* Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
	3	* Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	4	*
d14d33bf AM	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License, version 2 only,
	7	* as published by the Free Software Foundation.
3bd1e081 MD	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
d14d33bf	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
3bd1e081 MD	12	* GNU General Public License for more details.
3bd1e081 MD	13	*
d14d33bf AM	14	* You should have received a copy of the GNU General Public License along
	15	* with this program; if not, write to the Free Software Foundation, Inc.,
	16	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
3bd1e081 MD	17	*/
	18
	19	#ifndef _LTTNG_USTCONSUMER_H
	20	#define _LTTNG_USTCONSUMER_H
	21
	22	#include <config.h>
3bd1e081 MD	23	#include <errno.h>
3bd1e081 MD	24
10a8a223 DG	25	#include <common/consumer.h>
10a8a223 DG	26
74d0b642	27	#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081	28
ffe60014	29	int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
3bd1e081	30
3bd1e081	31	int lttng_ustconsumer_get_produced_snapshot(
ffe60014	32	struct lttng_consumer_stream stream, unsigned long pos);
3bd1e081 MD	33
	34	int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
	35	int sock, struct pollfd *consumer_sockpoll);
	36
	37	extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
	38	extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
e316aad5	39	extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
3bd1e081 MD	40	extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);
3bd1e081 MD	41
d41f73b7 MD	42	int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
	43	struct lttng_consumer_local_data *ctx);
	44	int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
	45
d056b477 MD	46	void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
d056b477 MD	47
ffe60014 DG	48	int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
	49	unsigned long *off);
	50	void lttng_ustctl_get_mmap_base(struct lttng_consumer_stream stream);
6d805429	51	int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
f02e1e8a	52
74d0b642	53	#else /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 MD	54
3bd1e081 MD	55	static inline
4078b776	56	ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
3bd1e081	57	struct lttng_consumer_local_data *ctx,
1d4dfdef DG	58	struct lttng_consumer_stream *stream, unsigned long len,
1d4dfdef DG	59	unsigned long padding)
3bd1e081 MD	60	{
	61	return -ENOSYS;
	62	}
	63
	64	static inline
4078b776	65	ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
3bd1e081	66	struct lttng_consumer_local_data *ctx,
1d4dfdef DG	67	struct lttng_consumer_stream *uststream, unsigned long len,
1d4dfdef DG	68	unsigned long padding)
3bd1e081 MD	69	{
	70	return -ENOSYS;
	71	}
	72
	73	static inline
ffe60014	74	int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
3bd1e081 MD	75	{
	76	return -ENOSYS;
	77	}
	78
	79	static inline
	80	int lttng_ustconsumer_get_produced_snapshot(
ffe60014	81	struct lttng_consumer_stream stream, unsigned long pos)
3bd1e081 MD	82	{
	83	return -ENOSYS;
	84	}
	85
	86	static inline
	87	int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
fbc72522 DG	88	int sock, struct pollfd *consumer_sockpoll)
	89	{
	90	return -ENOSYS;
	91	}
3bd1e081 MD	92
	93	static inline
	94	int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
	95	{
	96	return -ENOSYS;
	97	}
	98
	99	static inline
	100	void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
	101	{
	102	}
	103
	104	static inline
e316aad5	105	int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
3bd1e081 MD	106	{
	107	return -ENOSYS;
	108	}
	109
	110	static inline
	111	void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
	112	{
	113	}
	114
d41f73b7 MD	115	static inline
	116	int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
	117	struct lttng_consumer_local_data *ctx)
	118	{
	119	return -ENOSYS;
	120	}
	121
	122	static inline
	123	int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
	124	{
	125	return -ENOSYS;
	126	}
	127
d056b477 MD	128	static inline
	129	void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
	130	{
	131	}
	132
f02e1e8a	133	static inline
ffe60014 DG	134	int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
ffe60014 DG	135	unsigned long *off)
f02e1e8a DG	136	{
	137	return -ENOSYS;
	138	}
ca22feea	139	static inline
6d805429	140	int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
ca22feea DG	141	{
	142	return -ENOSYS;
	143	}
ffe60014 DG	144	static inline
	145	void lttng_ustctl_get_mmap_base(struct lttng_consumer_stream stream)
	146	{
	147	return NULL;
	148	}
74d0b642	149	#endif /* HAVE_LIBLTTNG_UST_CTL */
3bd1e081 MD	150
3bd1e081 MD	151	#endif /* _LTTNG_USTCONSUMER_H */