Major changes for the daemon data transmission
[lttng-tools.git] / ltt-sessiond / ltt-sessiond.h
1 /* Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
2 *
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License
5 * as published by the Free Software Foundation; either version 2
6 * of the License, or (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16 *
17 */
18
19 #ifndef _LTT_SESSIOND_H
20 #define _LTT_SESSIOND_H
21
22 #define DEFAULT_HOME_DIR "/tmp"
23 #define DEFAULT_UST_SOCK_DIR "/tmp/ust-app-socks"
24 #define DEFAULT_GLOBAL_APPS_PIPE "/tmp/ust-app-socks/global"
25
26 extern const char default_home_dir[],
27 default_tracing_group[],
28 default_ust_sock_dir[],
29 default_global_apps_pipe[];
30
31 /* LTTng trace representation */
32 struct ltt_lttng_trace {
33 struct cds_list_head list;
34 char trace_name[NAME_MAX];
35 struct cds_list_head marker_list;
36 };
37
38 /* UST trace representation */
39 struct ltt_ust_trace {
40 struct cds_list_head list;
41 int shmid;
42 char trace_name[NAME_MAX];
43 struct cds_list_head markers;
44 };
45
46 struct ltt_ust_marker {
47 struct cds_list_head list;
48 char *name;
49 char *channel;
50 };
51
52 /* Global session list */
53 struct ltt_session_list {
54 struct cds_list_head head;
55 };
56
57 /* Traceable application list */
58 struct ltt_traceable_app_list {
59 struct cds_list_head head;
60 };
61
62 /*
63 * Registered traceable applications. Libust registers
64 * to the session daemon and a linked list is kept
65 * of all running traceable app.
66 */
67 struct ltt_traceable_app {
68 struct cds_list_head list;
69 pid_t pid;
70 uid_t uid; /* User ID that owns the apps */
71 };
72
73 /*
74 * ltt-session - This data structure contains information needed
75 * to identify a tracing session for both LTTng and UST.
76 */
77 struct ltt_session {
78 char *name;
79 struct cds_list_head list;
80 uuid_t uuid;
81 struct cds_list_head ust_traces;
82 struct cds_list_head lttng_traces;
83 pid_t ust_consumer;
84 pid_t lttng_consumer;
85 };
86
87 #endif /* _LTT_SESSIOND_H */
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