Notify java agent of enabled application contexts
[lttng-tools.git] / src / bin / lttng-relayd / lttng-relayd.h
1 #ifndef LTTNG_RELAYD_H
2 #define LTTNG_RELAYD_H
3
4 /*
5 * Copyright (C) 2012 - Julien Desfossez <jdesfossez@efficios.com>
6 * David Goulet <dgoulet@efficios.com>
7 * 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License, version 2 only,
11 * as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 */
22
23 #include <limits.h>
24 #include <urcu.h>
25 #include <urcu/wfcqueue.h>
26
27 #include <common/hashtable/hashtable.h>
28
29 /*
30 * Queue used to enqueue relay requests
31 */
32 struct relay_conn_queue {
33 struct cds_wfcq_head head;
34 struct cds_wfcq_tail tail;
35 int32_t futex;
36 };
37
38 /*
39 * Contains stream indexed by ID. This is important since many commands lookup
40 * streams only by ID thus also keeping them in this hash table makes the
41 * search O(1).
42 */
43 extern struct lttng_ht *sessions_ht;
44 extern struct lttng_ht *relay_streams_ht;
45 extern struct lttng_ht *viewer_streams_ht;
46
47 extern char *opt_output_path;
48 extern const char *tracing_group_name;
49 extern const char * const config_section_name;
50
51 extern int thread_quit_pipe[2];
52
53 void lttng_relay_notify_ready(void);
54 int lttng_relay_stop_threads(void);
55
56 #endif /* LTTNG_RELAYD_H */
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