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
);
30 int lttng_ustconsumer_get_produced_snapshot(
31 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
32 int lttng_ustconsumer_get_consumed_snapshot(
33 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
35 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
36 int sock
, struct pollfd
*consumer_sockpoll
);
38 extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
);
39 extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
);
40 extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
);
41 extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
);
42 extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
);
44 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
45 struct lttng_consumer_local_data
*ctx
);
46 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
);
48 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
);
50 void lttng_ustctl_flush_buffer(struct lttng_consumer_stream
*stream
,
52 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
54 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
);
55 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
);
56 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
);
57 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
58 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
59 uint64_t len
, uint64_t version
,
60 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
61 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
62 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
63 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
64 struct lttng_consumer_stream
*metadata
);
65 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
67 int lttng_ustconsumer_get_current_timestamp(
68 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
69 int lttng_ustconsumer_get_sequence_number(
70 struct lttng_consumer_stream
*stream
, uint64_t *seq
);
72 #else /* HAVE_LIBLTTNG_UST_CTL */
75 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
76 struct lttng_consumer_local_data
*ctx
,
77 struct lttng_consumer_stream
*stream
, unsigned long len
,
78 unsigned long padding
)
84 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
85 struct lttng_consumer_local_data
*ctx
,
86 struct lttng_consumer_stream
*uststream
, unsigned long len
,
87 unsigned long padding
)
93 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
99 int lttng_ustconsumer_get_produced_snapshot(
100 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
106 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
107 int sock
, struct pollfd
*consumer_sockpoll
)
113 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
119 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
124 void lttng_ustconsumer_free_channel(struct lttng_consumer_channel
*chan
)
129 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
135 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
140 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
141 struct lttng_consumer_local_data
*ctx
)
147 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
153 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
158 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
164 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
169 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
174 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
178 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
182 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
186 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
187 uint64_t len
, uint64_t version
,
188 struct lttng_consumer_channel
*channel
, int timer
)
193 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
194 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
199 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
200 struct lttng_consumer_stream
*metadata
)
205 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
210 int lttng_ustconsumer_get_current_timestamp(
211 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
216 int lttng_ustconsumer_get_sequence_number(
217 struct lttng_consumer_stream
*stream
, uint64_t *seq
)
222 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
227 #endif /* HAVE_LIBLTTNG_UST_CTL */
229 #endif /* _LTTNG_USTCONSUMER_H */