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 void lttng_ustctl_flush_buffer(struct lttng_consumer_stream
*stream
,
57 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
59 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
);
60 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
);
61 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
);
62 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
63 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
64 uint64_t len
, uint64_t version
,
65 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
66 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
67 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
68 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
69 struct lttng_consumer_stream
*metadata
);
70 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
72 int lttng_ustconsumer_get_current_timestamp(
73 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
74 int lttng_ustconsumer_get_sequence_number(
75 struct lttng_consumer_stream
*stream
, uint64_t *seq
);
77 #else /* HAVE_LIBLTTNG_UST_CTL */
80 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
81 struct lttng_consumer_local_data
*ctx
,
82 struct lttng_consumer_stream
*stream
, unsigned long len
,
83 unsigned long padding
)
89 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
90 struct lttng_consumer_local_data
*ctx
,
91 struct lttng_consumer_stream
*uststream
, unsigned long len
,
92 unsigned long padding
)
98 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
104 int lttng_ustconsumer_sample_snapshot_positions(
105 struct lttng_consumer_stream
*stream
)
111 int lttng_ustconsumer_get_produced_snapshot(
112 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
118 int lttng_ustconsumer_get_consumed_snapshot(
119 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
125 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
126 int sock
, struct pollfd
*consumer_sockpoll
)
132 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
138 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
143 void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
)
148 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
154 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
159 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
160 struct lttng_consumer_local_data
*ctx
)
166 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
172 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
177 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
183 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
188 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
193 void lttng_ustctl_flush_buffer(struct lttng_consumer_stream
*stream
,
198 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
202 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
206 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
210 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
211 uint64_t len
, uint64_t version
,
212 struct lttng_consumer_channel
*channel
, int timer
)
217 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
218 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
223 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
224 struct lttng_consumer_stream
*metadata
)
229 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
234 int lttng_ustconsumer_get_current_timestamp(
235 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
240 int lttng_ustconsumer_get_sequence_number(
241 struct lttng_consumer_stream
*stream
, uint64_t *seq
)
246 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
251 #endif /* HAVE_LIBLTTNG_UST_CTL */
253 #endif /* _LTTNG_USTCONSUMER_H */