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fda89c9b 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; 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_TRACE_H | |
20 | #define _LTT_TRACE_H | |
21 | ||
9e78d6ae DG |
22 | #include <limits.h> |
23 | #include <urcu/list.h> | |
d4a2a84a | 24 | |
f3ed775e DG |
25 | #include <lttng/lttng.h> |
26 | ||
27 | #include "lttng-kernel.h" | |
54012638 | 28 | |
20fe2104 DG |
29 | /* Kernel event list */ |
30 | struct ltt_kernel_event_list { | |
31 | struct cds_list_head head; | |
32 | }; | |
33 | ||
8c0faa1d DG |
34 | /* Channel stream list */ |
35 | struct ltt_kernel_stream_list { | |
36 | struct cds_list_head head; | |
37 | }; | |
38 | ||
39 | /* Channel list */ | |
40 | struct ltt_kernel_channel_list { | |
41 | struct cds_list_head head; | |
42 | }; | |
43 | ||
20fe2104 DG |
44 | /* Kernel event */ |
45 | struct ltt_kernel_event { | |
20fe2104 | 46 | int fd; |
e953ef25 | 47 | int enabled; |
f34daff7 | 48 | struct lttng_kernel_event *event; |
20fe2104 DG |
49 | struct cds_list_head list; |
50 | }; | |
51 | ||
52 | /* Kernel channel */ | |
53 | struct ltt_kernel_channel { | |
54 | int fd; | |
8c0faa1d DG |
55 | char *pathname; |
56 | unsigned int stream_count; | |
f3ed775e | 57 | struct lttng_channel *channel; |
20fe2104 | 58 | struct ltt_kernel_event_list events_list; |
8c0faa1d DG |
59 | struct ltt_kernel_stream_list stream_list; |
60 | struct cds_list_head list; | |
20fe2104 DG |
61 | }; |
62 | ||
aaf26714 DG |
63 | /* Metadata */ |
64 | struct ltt_kernel_metadata { | |
65 | int fd; | |
8c0faa1d | 66 | char *pathname; |
f3ed775e | 67 | struct lttng_channel *conf; |
aaf26714 DG |
68 | }; |
69 | ||
8c0faa1d DG |
70 | /* Channel stream */ |
71 | struct ltt_kernel_stream { | |
72 | int fd; | |
73 | char *pathname; | |
74 | int state; | |
75 | struct cds_list_head list; | |
76 | }; | |
77 | ||
20fe2104 DG |
78 | /* Kernel session */ |
79 | struct ltt_kernel_session { | |
80 | int fd; | |
8c0faa1d | 81 | int metadata_stream_fd; |
f3ed775e | 82 | int kconsumer_fds_sent; |
8c0faa1d DG |
83 | unsigned int channel_count; |
84 | unsigned int stream_count_global; | |
aaf26714 | 85 | struct ltt_kernel_metadata *metadata; |
8c0faa1d | 86 | struct ltt_kernel_channel_list channel_list; |
fda89c9b DG |
87 | }; |
88 | ||
89 | /* UST trace representation */ | |
90 | struct ltt_ust_trace { | |
91 | struct cds_list_head list; | |
1657e9bb | 92 | char name[NAME_MAX]; |
fda89c9b DG |
93 | int shmid; |
94 | pid_t pid; | |
95 | struct cds_list_head markers; | |
96 | }; | |
97 | ||
98 | struct ltt_ust_marker { | |
99 | struct cds_list_head list; | |
100 | char *name; | |
101 | char *channel; | |
102 | }; | |
103 | ||
19e70852 DG |
104 | /* |
105 | * Get functions. | |
106 | */ | |
107 | struct ltt_kernel_event *get_kernel_event_by_name( | |
108 | char *name, struct ltt_kernel_channel *channel); | |
109 | struct ltt_kernel_channel *get_kernel_channel_by_name( | |
110 | char *name, struct ltt_kernel_session *session); | |
111 | ||
54012638 | 112 | /* |
c363b55d | 113 | * Create functions malloc() the data structure. |
54012638 | 114 | */ |
54012638 | 115 | struct ltt_kernel_session *trace_create_kernel_session(void); |
f3ed775e DG |
116 | struct ltt_kernel_channel *trace_create_kernel_channel(struct lttng_channel *chan); |
117 | struct ltt_kernel_event *trace_create_kernel_event(struct lttng_event *ev); | |
54012638 | 118 | struct ltt_kernel_metadata *trace_create_kernel_metadata(void); |
54012638 DG |
119 | struct ltt_kernel_stream *trace_create_kernel_stream(void); |
120 | ||
c363b55d DG |
121 | /* |
122 | * Destroy functions free() the data structure and remove from linked list if | |
123 | * it's applies. | |
124 | */ | |
125 | void trace_destroy_kernel_session(struct ltt_kernel_session *session); | |
126 | void trace_destroy_kernel_metadata(struct ltt_kernel_metadata *metadata); | |
127 | void trace_destroy_kernel_channel(struct ltt_kernel_channel *channel); | |
128 | void trace_destroy_kernel_event(struct ltt_kernel_event *event); | |
129 | void trace_destroy_kernel_stream(struct ltt_kernel_stream *stream); | |
130 | ||
fda89c9b | 131 | #endif /* _LTT_TRACE_H */ |