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consumerd: move address computation from on_read_subbuffer_mmap
[deliverable/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
50void lttng_ustctl_flush_buffer(struct lttng_consumer_stream *stream,
51 int producer_active);
52int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
53 uint64_t *stream_id);
54int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
55void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht);
56void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata);
57void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
58int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
59 uint64_t len, uint64_t version,
60 struct lttng_consumer_channel *channel, int timer, int wait);
61int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
62 struct lttng_consumer_channel *channel, int timer, int wait);
63int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
64 struct lttng_consumer_stream *metadata);
65void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
66 int producer);
67int lttng_ustconsumer_get_current_timestamp(
68 struct lttng_consumer_stream *stream, uint64_t *ts);
69int lttng_ustconsumer_get_sequence_number(
70 struct lttng_consumer_stream *stream, uint64_t *seq);
71
72#else /* HAVE_LIBLTTNG_UST_CTL */
73
74static inline
75ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
76 struct lttng_consumer_local_data *ctx,
77 struct lttng_consumer_stream *stream, unsigned long len,
78 unsigned long padding)
79{
80 return -ENOSYS;
81}
82
83static inline
84ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
85 struct lttng_consumer_local_data *ctx,
86 struct lttng_consumer_stream *uststream, unsigned long len,
87 unsigned long padding)
88{
89 return -ENOSYS;
90}
91
92static inline
93int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
94{
95 return -ENOSYS;
96}
97
98static inline
99int lttng_ustconsumer_get_produced_snapshot(
100 struct lttng_consumer_stream *stream, unsigned long *pos)
101{
102 return -ENOSYS;
103}
104
105static inline
106int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
107 int sock, struct pollfd *consumer_sockpoll)
108{
109 return -ENOSYS;
110}
111
112static inline
113int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
114{
115 return -ENOSYS;
116}
117
118static inline
119void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
120{
121}
122
123static inline
124void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan)
125{
126}
127
128static inline
129int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
130{
131 return -ENOSYS;
132}
133
134static inline
135void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
136{
137}
138
139static inline
140int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
141 struct lttng_consumer_local_data *ctx)
142{
143 return -ENOSYS;
144}
145
146static inline
147int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
148{
149 return -ENOSYS;
150}
151
152static inline
153void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
154{
155}
156
157static inline
158int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
159 unsigned long *off)
160{
161 return -ENOSYS;
162}
163static inline
164int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
165{
166 return -ENOSYS;
167}
168static inline
169void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream)
170{
171 return NULL;
172}
173static inline
174void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht)
175{
176}
177static inline
178void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata)
179{
180}
181static inline
182void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
183{
184}
185static inline
186int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
187 uint64_t len, uint64_t version,
188 struct lttng_consumer_channel *channel, int timer)
189{
190 return -ENOSYS;
191}
192static inline
193int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
194 struct lttng_consumer_channel *channel, int timer, int wait)
195{
196 return -ENOSYS;
197}
198static inline
199int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx,
200 struct lttng_consumer_stream *metadata)
201{
202 return -ENOSYS;
203}
204static inline
205void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream,
206 int producer)
207{
208}
209static inline
210int lttng_ustconsumer_get_current_timestamp(
211 struct lttng_consumer_stream *stream, uint64_t *ts)
212{
213 return -ENOSYS;
214}
215static inline
216int lttng_ustconsumer_get_sequence_number(
217 struct lttng_consumer_stream *stream, uint64_t *seq)
218{
219 return -ENOSYS;
220}
221static inline
222int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream,
223 uint64_t *stream_id)
224{
225 return -ENOSYS;
226}
227#endif /* HAVE_LIBLTTNG_UST_CTL */
228
229#endif /* _LTTNG_USTCONSUMER_H */
LTTng tools - Deliverables
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