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8c0faa1d DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
fac6795d DG |
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 | |
82a3637f DG |
6 | * as published by the Free Software Foundation; only version 2 |
7 | * of the License. | |
8c0faa1d | 8 | * |
fac6795d DG |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
050349bb | 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
fac6795d | 12 | * GNU General Public License for more details. |
8c0faa1d | 13 | * |
fac6795d DG |
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. | |
fac6795d DG |
17 | */ |
18 | ||
19 | #ifndef _LTT_SESSIOND_H | |
20 | #define _LTT_SESSIOND_H | |
21 | ||
099e26bd | 22 | #define _LGPL_SOURCE |
f6a9efaa | 23 | #include <urcu.h> |
099e26bd DG |
24 | #include <urcu/wfqueue.h> |
25 | ||
56fff090 | 26 | #include "ust-app.h" |
099e26bd | 27 | |
050349bb DG |
28 | #define DEFAULT_HOME_DIR "/tmp" |
29 | #define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks" | |
30 | #define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global" | |
31 | #define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng" | |
ab147185 | 32 | |
0fdd1e2c DG |
33 | #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "/lttng-ust-apps-wait" |
34 | #define DEFAULT_HOME_APPS_WAIT_SHM_PATH "/lttng-ust-apps-wait-%u" | |
35 | ||
ab147185 MD |
36 | struct module_param { |
37 | const char *name; | |
38 | int required; | |
39 | }; | |
686204ab | 40 | |
b73401da | 41 | /* LTTng kernel tracer modules list */ |
ab147185 | 42 | const struct module_param kernel_modules_list[] = { |
ab147185 MD |
43 | { "lttng-ftrace", 0 }, |
44 | { "lttng-kprobes", 0 }, | |
45 | { "lttng-kretprobes", 0 }, | |
ab147185 | 46 | { "lib-ring-buffer", 1 }, |
d0254c7c | 47 | { "ltt-relay", 1 }, |
ab147185 MD |
48 | { "ltt-ring-buffer-client-discard", 1 }, |
49 | { "ltt-ring-buffer-client-overwrite", 1 }, | |
50 | { "ltt-ring-buffer-metadata-client", 1 }, | |
51 | { "ltt-ring-buffer-client-mmap-discard", 1 }, | |
52 | { "ltt-ring-buffer-client-mmap-overwrite", 1 }, | |
53 | { "ltt-ring-buffer-metadata-mmap-client", 1 }, | |
54 | { "lttng-probe-lttng", 1 }, | |
55 | { "lttng-types", 0 }, | |
56 | { "lttng-probe-block", 0 }, | |
57 | { "lttng-probe-irq", 0 }, | |
58 | { "lttng-probe-kvm", 0 }, | |
59 | { "lttng-probe-sched", 0 }, | |
b73401da | 60 | }; |
20fe2104 | 61 | |
686204ab MD |
62 | extern const char default_home_dir[], |
63 | default_tracing_group[], | |
64 | default_ust_sock_dir[], | |
65 | default_global_apps_pipe[]; | |
fac6795d | 66 | |
5461b305 DG |
67 | /* |
68 | * This contains extra data needed for processing a command received by the | |
69 | * session daemon from the lttng client. | |
70 | */ | |
71 | struct command_ctx { | |
72 | int ust_sock; | |
73 | unsigned int lttng_msg_size; | |
be040666 | 74 | struct ucred creds; |
5461b305 DG |
75 | struct ltt_session *session; |
76 | struct lttcomm_lttng_msg *llm; | |
77 | struct lttcomm_session_msg *lsm; | |
78 | }; | |
79 | ||
099e26bd DG |
80 | struct ust_command { |
81 | int sock; | |
82 | struct ust_register_msg reg_msg; | |
83 | struct cds_wfq_node node; | |
84 | }; | |
85 | ||
86 | /* | |
87 | * Queue used to enqueue UST registration request (ust_commant) and protected | |
88 | * by a futex with a scheme N wakers / 1 waiters. See futex.c/.h | |
89 | */ | |
90 | struct ust_cmd_queue { | |
91 | int32_t futex; | |
92 | struct cds_wfq_queue queue; | |
93 | }; | |
94 | ||
fac6795d | 95 | #endif /* _LTT_SESSIOND_H */ |