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_data_pending(struct lttng_consumer_stream
*stream
);
54 void lttng_ustconsumer_close_metadata(struct lttng_ht
*ht
);
55 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
);
56 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
57 uint64_t len
, struct lttng_consumer_channel
*channel
,
59 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
60 struct lttng_consumer_channel
*channel
, int timer
, int wait
);
61 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
62 struct lttng_consumer_stream
*metadata
);
63 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
65 int lttng_ustconsumer_get_current_timestamp(
66 struct lttng_consumer_stream
*stream
, uint64_t *ts
);
68 #else /* HAVE_LIBLTTNG_UST_CTL */
71 ssize_t
lttng_ustconsumer_on_read_subbuffer_mmap(
72 struct lttng_consumer_local_data
*ctx
,
73 struct lttng_consumer_stream
*stream
, unsigned long len
,
74 unsigned long padding
)
80 ssize_t
lttng_ustconsumer_on_read_subbuffer_splice(
81 struct lttng_consumer_local_data
*ctx
,
82 struct lttng_consumer_stream
*uststream
, unsigned long len
,
83 unsigned long padding
)
89 int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream
*stream
)
95 int lttng_ustconsumer_get_produced_snapshot(
96 struct lttng_consumer_stream
*stream
, unsigned long *pos
)
102 int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data
*ctx
,
103 int sock
, struct pollfd
*consumer_sockpoll
)
109 int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel
*chan
)
115 void lttng_ustconsumer_del_channel(struct lttng_consumer_channel
*chan
)
120 int lttng_ustconsumer_add_stream(struct lttng_consumer_stream
*stream
)
126 void lttng_ustconsumer_del_stream(struct lttng_consumer_stream
*stream
)
131 int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream
*stream
,
132 struct lttng_consumer_local_data
*ctx
)
138 int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream
*stream
)
144 void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream
*stream
)
149 int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream
*stream
,
155 int lttng_ustconsumer_data_pending(struct lttng_consumer_stream
*stream
)
160 void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream
*stream
)
165 void lttng_ustconsumer_close_metadata(struct lttng_ht
*ht
)
169 void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream
*stream
)
173 int lttng_ustconsumer_recv_metadata(int sock
, uint64_t key
, uint64_t offset
,
174 uint64_t len
, struct lttng_consumer_channel
*channel
,
180 int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data
*ctx
,
181 struct lttng_consumer_channel
*channel
, int timer
, int wait
)
186 int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data
*ctx
,
187 struct lttng_consumer_stream
*metadata
)
192 void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream
*stream
,
197 int lttng_ustconsumer_get_current_timestamp(
198 struct lttng_consumer_stream
*stream
, uint64_t *ts
)
202 #endif /* HAVE_LIBLTTNG_UST_CTL */
204 #endif /* _LTTNG_USTCONSUMER_H */