Add CPU hotplug support
[lttng-tools.git] / ltt-sessiond / session.h
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91d76f53 1/*
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2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
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.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19#ifndef _LTT_SESSION_H
20#define _LTT_SESSION_H
21
5b97ec60 22#include <lttng/lttng.h>
20fe2104 23#include <urcu/list.h>
d4a2a84a 24
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25/* Global session list */
26struct ltt_session_list {
27 struct cds_list_head head;
28};
29
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30extern struct ltt_session_list ltt_session_list;
31
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32/* ltt-session - This data structure contains information needed
33 * to identify a tracing session for both LTTng and UST.
34 */
35struct ltt_session {
5b74c7b1 36 struct cds_list_head list;
20fe2104 37 char *name;
f3ed775e 38 char *path;
5b74c7b1 39 struct cds_list_head ust_traces;
20fe2104 40 struct ltt_kernel_session *kernel_session;
1657e9bb 41 unsigned int ust_trace_count;
5b74c7b1 42 pid_t ust_consumer;
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43};
44
45/* Prototypes */
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46int create_session(char *name, char *path);
47int destroy_session(char *name);
5461b305 48void get_lttng_session(struct lttng_session *sessions);
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49struct ltt_session *find_session_by_name(char *name);
50unsigned int get_session_count(void);
8c0faa1d 51struct ltt_session_list *get_session_list(void);
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52
53#endif /* _LTT_SESSION_H */
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