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97ee3a89 DG |
1 | /* |
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; only version 2 | |
7 | * of the License. | |
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_TRACE_UST_H | |
20 | #define _LTT_TRACE_UST_H | |
21 | ||
22 | #include <limits.h> | |
23 | #include <urcu/list.h> | |
24 | ||
25 | #include <lttng/lttng.h> | |
26 | #include <lttng-ust.h> | |
27 | ||
0177d773 DG |
28 | #include "traceable-app.h" |
29 | ||
30 | /* | |
31 | * UST session list. | |
32 | */ | |
33 | struct ltt_ust_session_list { | |
34 | unsigned int count; | |
35 | struct cds_list_head head; | |
36 | }; | |
37 | ||
97ee3a89 DG |
38 | /* UST event list */ |
39 | struct ltt_ust_event_list { | |
40 | unsigned int count; | |
41 | struct cds_list_head head; | |
42 | }; | |
43 | ||
44 | /* UST Channel list */ | |
45 | struct ltt_ust_channel_list { | |
46 | unsigned int count; | |
47 | struct cds_list_head head; | |
48 | }; | |
49 | ||
50 | /* UST event */ | |
51 | struct ltt_ust_event { | |
52 | int handle; | |
53 | int enabled; | |
54 | struct lttng_ust_context *ctx; | |
55 | struct lttng_ust_event *event; | |
56 | struct cds_list_head list; | |
57 | }; | |
58 | ||
59 | /* UST channel */ | |
60 | struct ltt_ust_channel { | |
61 | int handle; | |
62 | int enabled; | |
63 | char *name; | |
64 | char *trace_path; /* Trace file path name */ | |
65 | struct lttng_ust_context *ctx; | |
66 | struct lttng_ust_channel *attr; | |
67 | struct ltt_ust_event_list events; | |
68 | struct cds_list_head list; | |
69 | }; | |
70 | ||
71 | /* UST Metadata */ | |
72 | struct ltt_ust_metadata { | |
73 | int handle; | |
74 | char *trace_path; /* Trace file path name */ | |
75 | struct lttng_ust_channel *attr; | |
76 | }; | |
77 | ||
78 | /* UST session */ | |
79 | struct ltt_ust_session { | |
80 | int handle; | |
81 | int enabled; | |
82 | int uconsumer_fds_sent; | |
83 | char *path; | |
0177d773 | 84 | struct ltt_traceable_app *app; |
97ee3a89 DG |
85 | struct ltt_ust_metadata *metadata; |
86 | struct ltt_ust_channel_list channels; | |
0177d773 | 87 | struct cds_list_head list; |
97ee3a89 DG |
88 | }; |
89 | ||
90 | /* | |
91 | * Lookup functions. NULL is returned if not found. | |
92 | */ | |
93 | struct ltt_ust_event *trace_ust_get_event_by_name( | |
94 | char *name, struct ltt_ust_channel *channel); | |
95 | struct ltt_ust_channel *trace_ust_get_channel_by_name( | |
96 | char *name, struct ltt_ust_session *session); | |
0177d773 DG |
97 | struct ltt_ust_session *trace_ust_get_session_by_pid(pid_t pid, |
98 | struct ltt_ust_session_list *session_list); | |
97ee3a89 DG |
99 | |
100 | /* | |
101 | * Create functions malloc() the data structure. | |
102 | */ | |
0177d773 | 103 | struct ltt_ust_session *trace_ust_create_session(char *path, pid_t pid); |
97ee3a89 DG |
104 | struct ltt_ust_channel *trace_ust_create_channel(char *name, char *path, |
105 | struct lttng_ust_channel *attr); | |
106 | struct ltt_ust_event *trace_ust_create_event(struct lttng_event *ev); | |
107 | struct ltt_ust_metadata *trace_ust_create_metadata(char *path); | |
108 | ||
109 | /* | |
110 | * Destroy functions free() the data structure and remove from linked list if | |
111 | * it's applies. | |
112 | */ | |
113 | void trace_ust_destroy_session(struct ltt_ust_session *session); | |
114 | void trace_ust_destroy_metadata(struct ltt_ust_metadata *metadata); | |
115 | void trace_ust_destroy_channel(struct ltt_ust_channel *channel); | |
116 | void trace_ust_destroy_event(struct ltt_ust_event *event); | |
117 | ||
118 | #endif /* _LTT_TRACE_UST_H */ |