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
25 #include <common/consumer.h>
27 #ifdef HAVE_LIBLTTNG_UST_CTL
29 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
);
31 int lttng_ustconsumer_get_produced_snapshot(
32 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
33 int lttng_ustconsumer_get_consumed_snapshot(
34 struct lttng_consumer_stream
*stream
, unsigned long *pos
);
36 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
37 int sock
, struct pollfd
*consumer_sockpoll
);
39 extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
);
40 extern void lttng_ustconsumer_del_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 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
52 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
);
53 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
55 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
);
56 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
);
57 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
);
58 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
59 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
60 uint64_t len
, struct lttng_consumer_channel
*channel
,
62 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
63 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
64 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
65 struct lttng_consumer_stream
*metadata
);
66 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
68 int lttng_ustconsumer_get_current_timestamp(
69 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
71 #else /* HAVE_LIBLTTNG_UST_CTL */
74 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
75 struct lttng_consumer_local_data
*ctx
,
76 struct lttng_consumer_stream
*stream
, unsigned long len
,
77 unsigned long padding
)
83 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
84 struct lttng_consumer_local_data
*ctx
,
85 struct lttng_consumer_stream
*uststream
, unsigned long len
,
86 unsigned long padding
)
92 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
98 int lttng_ustconsumer_get_produced_snapshot(
99 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
105 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
106 int sock
, struct pollfd
*consumer_sockpoll
)
112 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
118 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
123 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
129 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
134 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
135 struct lttng_consumer_local_data
*ctx
)
141 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
147 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
152 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
158 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
163 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
168 void lttng_ustconsumer_close_all_metadata(struct lttng_ht
*ht
)
172 void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel
*metadata
)
176 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
180 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
181 uint64_t len
, struct lttng_consumer_channel
*channel
,
187 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
188 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
193 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
194 struct lttng_consumer_stream
*metadata
)
199 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
204 int lttng_ustconsumer_get_current_timestamp(
205 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
210 int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream
*stream
,
215 #endif /* HAVE_LIBLTTNG_UST_CTL */
217 #endif /* _LTTNG_USTCONSUMER_H */