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 int lttng_ustconsumer_get_current_timestamp(
71 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
72 int lttng_ustconsumer_get_sequence_number(
73 struct lttng_consumer_stream
*stream
, uint64_t *seq
);
75 #else /* HAVE_LIBLTTNG_UST_CTL */
78 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
79 struct lttng_consumer_local_data
*ctx
,
80 struct lttng_consumer_stream
*stream
, unsigned long len
,
81 unsigned long padding
)
87 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
88 struct lttng_consumer_local_data
*ctx
,
89 struct lttng_consumer_stream
*uststream
, unsigned long len
,
90 unsigned long padding
)
96 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
102 int lttng_ustconsumer_sample_snapshot_positions(
103 struct lttng_consumer_stream
*stream
)
109 int lttng_ustconsumer_get_produced_snapshot(
110 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
116 int lttng_ustconsumer_get_consumed_snapshot(
117 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
123 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
124 int sock
, struct pollfd
*consumer_sockpoll
)
130 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
136 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
141 void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
)
146 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
152 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
157 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
158 struct lttng_consumer_local_data
*ctx
)
164 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
170 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
175 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
181 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
186 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
191 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
195 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
199 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
203 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
204 uint64_t len
, uint64_t version
,
205 struct lttng_consumer_channel
*channel
, int timer
)
210 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
211 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
216 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
217 struct lttng_consumer_stream
*metadata
)
222 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
227 int lttng_ustconsumer_get_current_timestamp(
228 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
233 int lttng_ustconsumer_get_sequence_number(
234 struct lttng_consumer_stream
*stream
, uint64_t *seq
)
239 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
244 #endif /* HAVE_LIBLTTNG_UST_CTL */
246 #endif /* _LTTNG_USTCONSUMER_H */