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