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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. |
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> |
24 | ||
10a8a223 DG |
25 | #include <common/consumer.h> |
26 | ||
74d0b642 | 27 | #ifdef HAVE_LIBLTTNG_UST_CTL |
3bd1e081 | 28 | |
3bd1e081 MD |
29 | /* |
30 | * Take a snapshot for a specific fd | |
31 | * | |
32 | * Returns 0 on success, < 0 on error | |
33 | */ | |
34 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_local_data *ctx, | |
35 | struct lttng_consumer_stream *stream); | |
36 | ||
37 | /* | |
38 | * Get the produced position | |
39 | * | |
40 | * Returns 0 on success, < 0 on error | |
41 | */ | |
42 | int lttng_ustconsumer_get_produced_snapshot( | |
43 | struct lttng_consumer_local_data *ctx, | |
44 | struct lttng_consumer_stream *stream, | |
45 | unsigned long *pos); | |
46 | ||
47 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, | |
48 | int sock, struct pollfd *consumer_sockpoll); | |
49 | ||
50 | extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan); | |
51 | extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan); | |
e316aad5 | 52 | extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream); |
3bd1e081 MD |
53 | extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream); |
54 | ||
d41f73b7 MD |
55 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, |
56 | struct lttng_consumer_local_data *ctx); | |
57 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream); | |
58 | ||
d056b477 MD |
59 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream); |
60 | ||
f02e1e8a DG |
61 | extern int lttng_ustctl_get_mmap_read_offset( |
62 | struct lttng_ust_shm_handle *handle, | |
63 | struct lttng_ust_lib_ring_buffer *buf, unsigned long *off); | |
6d805429 | 64 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream); |
f02e1e8a | 65 | |
74d0b642 | 66 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
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67 | |
68 | static inline | |
4078b776 | 69 | ssize_t lttng_ustconsumer_on_read_subbuffer_mmap( |
3bd1e081 | 70 | struct lttng_consumer_local_data *ctx, |
1d4dfdef DG |
71 | struct lttng_consumer_stream *stream, unsigned long len, |
72 | unsigned long padding) | |
3bd1e081 MD |
73 | { |
74 | return -ENOSYS; | |
75 | } | |
76 | ||
77 | static inline | |
4078b776 | 78 | ssize_t lttng_ustconsumer_on_read_subbuffer_splice( |
3bd1e081 | 79 | struct lttng_consumer_local_data *ctx, |
1d4dfdef DG |
80 | struct lttng_consumer_stream *uststream, unsigned long len, |
81 | unsigned long padding) | |
3bd1e081 MD |
82 | { |
83 | return -ENOSYS; | |
84 | } | |
85 | ||
86 | static inline | |
87 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_local_data *ctx, | |
88 | struct lttng_consumer_stream *stream) | |
89 | { | |
90 | return -ENOSYS; | |
91 | } | |
92 | ||
93 | static inline | |
94 | int lttng_ustconsumer_get_produced_snapshot( | |
95 | struct lttng_consumer_local_data *ctx, | |
96 | struct lttng_consumer_stream *stream, | |
97 | unsigned long *pos) | |
98 | { | |
99 | return -ENOSYS; | |
100 | } | |
101 | ||
102 | static inline | |
103 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, | |
fbc72522 DG |
104 | int sock, struct pollfd *consumer_sockpoll) |
105 | { | |
106 | return -ENOSYS; | |
107 | } | |
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108 | |
109 | static inline | |
110 | int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan) | |
111 | { | |
112 | return -ENOSYS; | |
113 | } | |
114 | ||
115 | static inline | |
116 | void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan) | |
117 | { | |
118 | } | |
119 | ||
120 | static inline | |
e316aad5 | 121 | int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream) |
3bd1e081 MD |
122 | { |
123 | return -ENOSYS; | |
124 | } | |
125 | ||
126 | static inline | |
127 | void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream) | |
128 | { | |
129 | } | |
130 | ||
d41f73b7 MD |
131 | static inline |
132 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, | |
133 | struct lttng_consumer_local_data *ctx) | |
134 | { | |
135 | return -ENOSYS; | |
136 | } | |
137 | ||
138 | static inline | |
139 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream) | |
140 | { | |
141 | return -ENOSYS; | |
142 | } | |
143 | ||
d056b477 MD |
144 | static inline |
145 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream) | |
146 | { | |
147 | } | |
148 | ||
f02e1e8a DG |
149 | static inline |
150 | int lttng_ustctl_get_mmap_read_offset(struct lttng_ust_shm_handle *handle, | |
151 | struct lttng_ust_lib_ring_buffer *buf, unsigned long *off) | |
152 | { | |
153 | return -ENOSYS; | |
154 | } | |
ca22feea | 155 | static inline |
6d805429 | 156 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream) |
ca22feea DG |
157 | { |
158 | return -ENOSYS; | |
159 | } | |
74d0b642 | 160 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
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161 | |
162 | #endif /* _LTTNG_USTCONSUMER_H */ |