projects / lttng-tools.git / blame_incremental
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (non-incremental) | history | HEAD
Implement consumer ring buffer position sampling
[lttng-tools.git] / src / common / ust-consumer / ust-consumer.h
... / ...
CommitLineData
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);
29int lttng_ustconsumer_sample_snapshot_positions(
30 struct lttng_consumer_stream *stream);
31
32int lttng_ustconsumer_get_produced_snapshot(
33 struct lttng_consumer_stream *stream, unsigned long *pos);
34int lttng_ustconsumer_get_consumed_snapshot(
35 struct lttng_consumer_stream *stream, unsigned long *pos);
36
37int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
38 int sock, struct pollfd *consumer_sockpoll);
39
40extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
41extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
42extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan);
43extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
44extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);
45
46int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
47 struct lttng_consumer_local_data *ctx);
48int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
49
50void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
51
52int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
53 unsigned long *off);
54void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream);
55int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
56 uint64_t *stream_id);
57int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
58void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht);
59void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata);
60void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
61int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
62 uint64_t len, uint64_t version,
63 struct lttng_consumer_channel *channel, int timer, int wait);
64int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
65 struct lttng_consumer_channel *channel, int timer, int wait);
66int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
67 struct lttng_consumer_stream *metadata);
68void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
69 int producer);
70int lttng_ustconsumer_get_current_timestamp(
71 struct lttng_consumer_stream *stream, uint64_t *ts);
72int lttng_ustconsumer_get_sequence_number(
73 struct lttng_consumer_stream *stream, uint64_t *seq);
74
75#else /* HAVE_LIBLTTNG_UST_CTL */
76
77static inline
78ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
79 struct lttng_consumer_local_data *ctx,
80 struct lttng_consumer_stream *stream, unsigned long len,
81 unsigned long padding)
82{
83 return -ENOSYS;
84}
85
86static inline
87ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
88 struct lttng_consumer_local_data *ctx,
89 struct lttng_consumer_stream *uststream, unsigned long len,
90 unsigned long padding)
91{
92 return -ENOSYS;
93}
94
95static inline
96int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
97{
98 return -ENOSYS;
99}
100
101static inline
102int lttng_ustconsumer_sample_snapshot_positions(
103 struct lttng_consumer_stream *stream)
104{
105 return -ENOSYS;
106}
107
108static inline
109int lttng_ustconsumer_get_produced_snapshot(
110 struct lttng_consumer_stream *stream, unsigned long *pos)
111{
112 return -ENOSYS;
113}
114
115static inline
116int lttng_ustconsumer_get_consumed_snapshot(
117 struct lttng_consumer_stream *stream, unsigned long *pos)
118{
119 return -ENOSYS;
120}
121
122static inline
123int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
124 int sock, struct pollfd *consumer_sockpoll)
125{
126 return -ENOSYS;
127}
128
129static inline
130int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
131{
132 return -ENOSYS;
133}
134
135static inline
136void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
137{
138}
139
140static inline
141void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
142{
143}
144
145static inline
146int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
147{
148 return -ENOSYS;
149}
150
151static inline
152void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
153{
154}
155
156static inline
157int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
158 struct lttng_consumer_local_data *ctx)
159{
160 return -ENOSYS;
161}
162
163static inline
164int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
165{
166 return -ENOSYS;
167}
168
169static inline
170void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
171{
172}
173
174static inline
175int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
176 unsigned long *off)
177{
178 return -ENOSYS;
179}
180static inline
181int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
182{
183 return -ENOSYS;
184}
185static inline
186void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream)
187{
188 return NULL;
189}
190static inline
191void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht)
192{
193}
194static inline
195void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata)
196{
197}
198static inline
199void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
200{
201}
202static inline
203int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
204 uint64_t len, uint64_t version,
205 struct lttng_consumer_channel *channel, int timer)
206{
207 return -ENOSYS;
208}
209static inline
210int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
211 struct lttng_consumer_channel *channel, int timer, int wait)
212{
213 return -ENOSYS;
214}
215static inline
216int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
217 struct lttng_consumer_stream *metadata)
218{
219 return -ENOSYS;
220}
221static inline
222void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
223 int producer)
224{
225}
226static inline
227int lttng_ustconsumer_get_current_timestamp(
228 struct lttng_consumer_stream *stream, uint64_t *ts)
229{
230 return -ENOSYS;
231}
232static inline
233int lttng_ustconsumer_get_sequence_number(
234 struct lttng_consumer_stream *stream, uint64_t *seq)
235{
236 return -ENOSYS;
237}
238static inline
239int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
240 uint64_t *stream_id)
241{
242 return -ENOSYS;
243}
244#endif /* HAVE_LIBLTTNG_UST_CTL */
245
246#endif /* _LTTNG_USTCONSUMER_H */
LTTng 2.0 tools and control repository
This page took 0.022984 seconds and 4 git commands to generate.