2 * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
3 * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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.
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.
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.
19 #ifndef _LTTNG_USTCONSUMER_H
20 #define _LTTNG_USTCONSUMER_H
24 #include <common/consumer/consumer.h>
26 #ifdef HAVE_LIBLTTNG_UST_CTL
28 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
);
29 int lttng_ustconsumer_sample_snapshot_positions(
30 struct lttng_consumer_stream
*stream
);
32 int lttng_ustconsumer_get_produced_snapshot(
33 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
34 int lttng_ustconsumer_get_consumed_snapshot(
35 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
37 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
38 int sock
, struct pollfd
*consumer_sockpoll
);
40 extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
);
41 extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
);
42 extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
);
43 extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
);
44 extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
);
46 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
47 struct lttng_consumer_local_data
*ctx
);
48 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
);
50 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
);
52 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
54 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
);
55 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
57 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
);
58 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
);
59 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
);
60 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
61 int 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
);
64 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
65 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
66 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
67 struct lttng_consumer_stream
*metadata
);
68 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
70 void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream
*stream
);
71 int lttng_ustconsumer_get_current_timestamp(
72 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
73 int lttng_ustconsumer_get_sequence_number(
74 struct lttng_consumer_stream
*stream
, uint64_t *seq
);
76 #else /* HAVE_LIBLTTNG_UST_CTL */
79 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
80 struct lttng_consumer_local_data
*ctx
,
81 struct lttng_consumer_stream
*stream
, unsigned long len
,
82 unsigned long padding
)
88 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
89 struct lttng_consumer_local_data
*ctx
,
90 struct lttng_consumer_stream
*uststream
, unsigned long len
,
91 unsigned long padding
)
97 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
103 int lttng_ustconsumer_sample_snapshot_positions(
104 struct lttng_consumer_stream
*stream
)
110 int lttng_ustconsumer_get_produced_snapshot(
111 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
117 int lttng_ustconsumer_get_consumed_snapshot(
118 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
124 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
125 int sock
, struct pollfd
*consumer_sockpoll
)
131 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
137 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
142 void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
)
147 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
153 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
158 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
159 struct lttng_consumer_local_data
*ctx
)
165 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
171 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
176 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
182 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
187 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
192 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
196 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
200 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
204 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
205 uint64_t len
, uint64_t version
,
206 struct lttng_consumer_channel
*channel
, int timer
)
211 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
212 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
217 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
218 struct lttng_consumer_stream
*metadata
)
223 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
228 void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream
*stream
)
232 int lttng_ustconsumer_get_current_timestamp(
233 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
238 int lttng_ustconsumer_get_sequence_number(
239 struct lttng_consumer_stream
*stream
, uint64_t *seq
)
244 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
249 #endif /* HAVE_LIBLTTNG_UST_CTL */
251 #endif /* _LTTNG_USTCONSUMER_H */