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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 | * | |
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. | |
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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 | ||
10a8a223 DG |
25 | #include <common/consumer.h> |
26 | ||
74d0b642 | 27 | #ifdef HAVE_LIBLTTNG_UST_CTL |
3bd1e081 | 28 | |
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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); | |
52 | extern int lttng_ustconsumer_allocate_stream(struct lttng_consumer_stream *stream); | |
53 | extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream); | |
54 | ||
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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 | ||
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59 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream); |
60 | ||
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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); | |
64 | ||
74d0b642 | 65 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
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66 | |
67 | static inline | |
4078b776 | 68 | ssize_t lttng_ustconsumer_on_read_subbuffer_mmap( |
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69 | struct lttng_consumer_local_data *ctx, |
70 | struct lttng_consumer_stream *stream, unsigned long len) | |
71 | { | |
72 | return -ENOSYS; | |
73 | } | |
74 | ||
75 | static inline | |
4078b776 | 76 | ssize_t lttng_ustconsumer_on_read_subbuffer_splice( |
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77 | struct lttng_consumer_local_data *ctx, |
78 | struct lttng_consumer_stream *uststream, unsigned long len) | |
79 | { | |
80 | return -ENOSYS; | |
81 | } | |
82 | ||
83 | static inline | |
84 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_local_data *ctx, | |
85 | struct lttng_consumer_stream *stream) | |
86 | { | |
87 | return -ENOSYS; | |
88 | } | |
89 | ||
90 | static inline | |
91 | int lttng_ustconsumer_get_produced_snapshot( | |
92 | struct lttng_consumer_local_data *ctx, | |
93 | struct lttng_consumer_stream *stream, | |
94 | unsigned long *pos) | |
95 | { | |
96 | return -ENOSYS; | |
97 | } | |
98 | ||
99 | static inline | |
100 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, | |
fbc72522 DG |
101 | int sock, struct pollfd *consumer_sockpoll) |
102 | { | |
103 | return -ENOSYS; | |
104 | } | |
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105 | |
106 | static inline | |
107 | int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan) | |
108 | { | |
109 | return -ENOSYS; | |
110 | } | |
111 | ||
112 | static inline | |
113 | void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan) | |
114 | { | |
115 | } | |
116 | ||
117 | static inline | |
118 | int lttng_ustconsumer_allocate_stream(struct lttng_consumer_stream *stream) | |
119 | { | |
120 | return -ENOSYS; | |
121 | } | |
122 | ||
123 | static inline | |
124 | void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream) | |
125 | { | |
126 | } | |
127 | ||
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128 | static inline |
129 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, | |
130 | struct lttng_consumer_local_data *ctx) | |
131 | { | |
132 | return -ENOSYS; | |
133 | } | |
134 | ||
135 | static inline | |
136 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream) | |
137 | { | |
138 | return -ENOSYS; | |
139 | } | |
140 | ||
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141 | static inline |
142 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream) | |
143 | { | |
144 | } | |
145 | ||
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146 | static inline |
147 | int lttng_ustctl_get_mmap_read_offset(struct lttng_ust_shm_handle *handle, | |
148 | struct lttng_ust_lib_ring_buffer *buf, unsigned long *off) | |
149 | { | |
150 | return -ENOSYS; | |
151 | } | |
74d0b642 | 152 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
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153 | |
154 | #endif /* _LTTNG_USTCONSUMER_H */ |