Fix: don't keep vpid, procname, nor patchlevel environment for per-uid buffers
[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 *
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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.
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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
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12 * GNU General Public License for more details.
13 *
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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.
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17 */
18
19#ifndef _LTTNG_USTCONSUMER_H
20#define _LTTNG_USTCONSUMER_H
21
22#include <config.h>
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23#include <errno.h>
24
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25#include <common/consumer.h>
26
74d0b642 27#ifdef HAVE_LIBLTTNG_UST_CTL
3bd1e081 28
ffe60014 29int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream);
3bd1e081 30
3bd1e081 31int lttng_ustconsumer_get_produced_snapshot(
ffe60014 32 struct lttng_consumer_stream *stream, unsigned long *pos);
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33
34int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
35 int sock, struct pollfd *consumer_sockpoll);
36
37extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan);
38extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan);
e316aad5 39extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream);
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40extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream);
41
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42int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
43 struct lttng_consumer_local_data *ctx);
44int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream);
45
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46void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream);
47
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48int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
49 unsigned long *off);
50void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream);
6d805429 51int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream);
d88aee68 52void lttng_ustconsumer_close_metadata(struct lttng_ht *ht);
d8ef542d 53void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream);
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54int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset,
55 uint64_t len, struct lttng_consumer_channel *channel);
56int lttng_ustconsumer_push_metadata(struct lttng_consumer_channel *metadata,
57 const char *metadata_str, uint64_t target_offset, uint64_t len);
58int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx,
59 struct lttng_consumer_channel *channel);
f02e1e8a 60
74d0b642 61#else /* HAVE_LIBLTTNG_UST_CTL */
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62
63static inline
4078b776 64ssize_t lttng_ustconsumer_on_read_subbuffer_mmap(
3bd1e081 65 struct lttng_consumer_local_data *ctx,
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66 struct lttng_consumer_stream *stream, unsigned long len,
67 unsigned long padding)
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68{
69 return -ENOSYS;
70}
71
72static inline
4078b776 73ssize_t lttng_ustconsumer_on_read_subbuffer_splice(
3bd1e081 74 struct lttng_consumer_local_data *ctx,
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75 struct lttng_consumer_stream *uststream, unsigned long len,
76 unsigned long padding)
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77{
78 return -ENOSYS;
79}
80
81static inline
ffe60014 82int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream)
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83{
84 return -ENOSYS;
85}
86
87static inline
88int lttng_ustconsumer_get_produced_snapshot(
ffe60014 89 struct lttng_consumer_stream *stream, unsigned long *pos)
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90{
91 return -ENOSYS;
92}
93
94static inline
95int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx,
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96 int sock, struct pollfd *consumer_sockpoll)
97{
98 return -ENOSYS;
99}
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100
101static inline
102int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan)
103{
104 return -ENOSYS;
105}
106
107static inline
108void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan)
109{
110}
111
112static inline
e316aad5 113int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream)
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114{
115 return -ENOSYS;
116}
117
118static inline
119void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream)
120{
121}
122
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123static inline
124int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
125 struct lttng_consumer_local_data *ctx)
126{
127 return -ENOSYS;
128}
129
130static inline
131int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream)
132{
133 return -ENOSYS;
134}
135
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136static inline
137void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream)
138{
139}
140
f02e1e8a 141static inline
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142int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream,
143 unsigned long *off)
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144{
145 return -ENOSYS;
146}
ca22feea 147static inline
6d805429 148int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream)
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149{
150 return -ENOSYS;
151}
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152static inline
153void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream)
154{
155 return NULL;
156}
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157static inline
158void lttng_ustconsumer_close_metadata(struct lttng_ht *ht)
159{
160}
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161static inline
162void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream)
163{
164}
74d0b642 165#endif /* HAVE_LIBLTTNG_UST_CTL */
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166
167#endif /* _LTTNG_USTCONSUMER_H */
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