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>
27 #ifdef HAVE_LIBLTTNG_UST_CTL
29 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
);
30 int lttng_ustconsumer_sample_snapshot_positions(
31 struct lttng_consumer_stream
*stream
);
33 int lttng_ustconsumer_get_produced_snapshot(
34 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
35 int lttng_ustconsumer_get_consumed_snapshot(
36 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
38 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
39 int sock
, struct pollfd
*consumer_sockpoll
);
41 extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
);
42 extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
);
43 extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
);
44 extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
);
45 extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
);
47 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
48 struct lttng_consumer_local_data
*ctx
);
49 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
);
51 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
);
53 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
55 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
);
56 void lttng_ustctl_flush_buffer(struct lttng_consumer_stream
*stream
,
58 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
60 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
);
61 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
);
62 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
);
63 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
64 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
65 uint64_t len
, uint64_t version
,
66 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
67 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
68 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
69 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
70 struct lttng_consumer_stream
*metadata
);
71 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
73 void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream
*stream
);
74 int lttng_ustconsumer_get_current_timestamp(
75 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
76 int lttng_ustconsumer_get_sequence_number(
77 struct lttng_consumer_stream
*stream
, uint64_t *seq
);
79 #else /* HAVE_LIBLTTNG_UST_CTL */
82 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
83 struct lttng_consumer_local_data
*ctx
,
84 struct lttng_consumer_stream
*stream
, unsigned long len
,
85 unsigned long padding
)
91 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
92 struct lttng_consumer_local_data
*ctx
,
93 struct lttng_consumer_stream
*uststream
, unsigned long len
,
94 unsigned long padding
)
100 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
106 int lttng_ustconsumer_sample_snapshot_positions(
107 struct lttng_consumer_stream
*stream
)
113 int lttng_ustconsumer_get_produced_snapshot(
114 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
120 int lttng_ustconsumer_get_consumed_snapshot(
121 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
127 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
128 int sock
, struct pollfd
*consumer_sockpoll
)
134 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
140 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
145 void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
)
150 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
156 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
161 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
162 struct lttng_consumer_local_data
*ctx
)
168 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
174 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
179 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
185 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
190 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
195 void lttng_ustctl_flush_buffer(struct lttng_consumer_stream
*stream
,
200 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
204 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
208 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
212 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
213 uint64_t len
, uint64_t version
,
214 struct lttng_consumer_channel
*channel
, int timer
)
219 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
220 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
225 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
226 struct lttng_consumer_stream
*metadata
)
231 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
236 void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream
*stream
)
240 int lttng_ustconsumer_get_current_timestamp(
241 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
246 int lttng_ustconsumer_get_sequence_number(
247 struct lttng_consumer_stream
*stream
, uint64_t *seq
)
252 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
257 #endif /* HAVE_LIBLTTNG_UST_CTL */
259 #endif /* _LTTNG_USTCONSUMER_H */