Wait for data availability when stopping a session
[lttng-tools.git] / src / common / defaults.h
1 /*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2 only,
7 * as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19 #ifndef _DEFAULTS_H
20 #define _DEFAULTS_H
21
22 /* Default unix group name for tracing. */
23 #define DEFAULT_TRACING_GROUP "tracing"
24
25 /* Environment variable to set session daemon binary path. */
26 #define DEFAULT_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
27
28 /* Default trace output directory name */
29 #define DEFAULT_TRACE_DIR_NAME "lttng-traces"
30
31 /* Default size of a hash table */
32 #define DEFAULT_HT_SIZE 4
33
34 /* Default session daemon paths */
35 #define DEFAULT_HOME_DIR "/tmp"
36 #define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks"
37 #define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
38 #define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng"
39
40 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "/lttng-ust-apps-wait"
41 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH "/lttng-ust-apps-wait-%u"
42
43 /* Default directory where the trace are written in per domain */
44 #define DEFAULT_KERNEL_TRACE_DIR "/kernel"
45 #define DEFAULT_UST_TRACE_DIR "/ust"
46
47 /*
48 * Default session name for the lttng command line. This default value will
49 * get the date and time appended (%Y%m%d-%H%M%S) to it.
50 */
51 #define DEFAULT_SESSION_NAME "auto"
52
53 /* Default consumer paths */
54 #define DEFAULT_CONSUMERD_RUNDIR "%s"
55
56 /* Kernel consumer path */
57 #define DEFAULT_KCONSUMERD_PATH DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
58 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/command"
59 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/error"
60
61 /* UST 64-bit consumer path */
62 #define DEFAULT_USTCONSUMERD64_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
63 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/command"
64 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/error"
65
66 /* UST 32-bit consumer path */
67 #define DEFAULT_USTCONSUMERD32_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
68 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/command"
69 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/error"
70
71
72 /* Default lttng run directory */
73 #define DEFAULT_LTTNG_RUNDIR "/var/run/lttng"
74 #define DEFAULT_LTTNG_HOME_RUNDIR "%s/.lttng"
75
76 /* Default unix socket path */
77 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
78 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/apps-lttng-sessiond"
79 #define DEFAULT_HOME_APPS_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/apps-lttng-sessiond"
80 #define DEFAULT_HOME_CLIENT_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
81 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/health.sock"
82 #define DEFAULT_HOME_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/health.sock"
83
84 /*
85 * Value taken from the hard limit allowed by the kernel when using setrlimit
86 * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
87 */
88 #define DEFAULT_POLL_SIZE 65535
89
90 /* Default channel attributes */
91 #define DEFAULT_CHANNEL_NAME "channel0"
92 #define DEFAULT_CHANNEL_OVERWRITE 0 /* usec */
93 /* DEFAULT_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
94 #define DEFAULT_CHANNEL_SUBBUF_SIZE 4096 /* bytes */
95 /* DEFAULT_CHANNEL_SUBBUF_NUM must always be a power of 2 */
96 #define DEFAULT_CHANNEL_SUBBUF_NUM 4
97 #define DEFAULT_CHANNEL_SWITCH_TIMER 0 /* usec */
98 #define DEFAULT_CHANNEL_READ_TIMER 200 /* usec */
99 #define DEFAULT_CHANNEL_OUTPUT LTTNG_EVENT_MMAP
100
101 #define DEFAULT_METADATA_SUBBUF_SIZE 4096
102 #define DEFAULT_METADATA_SUBBUF_NUM 2
103
104 /* Kernel has different defaults */
105
106 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
107 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE 262144 /* bytes */
108 /*
109 * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
110 * Update help manually if override.
111 */
112 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM DEFAULT_CHANNEL_SUBBUF_NUM
113 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
114 #define DEFAULT_KERNEL_CHANNEL_OUTPUT LTTNG_EVENT_SPLICE
115
116 /* User space defaults */
117
118 /* Must be a power of 2 */
119 #define DEFAULT_UST_CHANNEL_SUBBUF_SIZE 4096 /* bytes */
120 /* Must be a power of 2. Update help manuall if override. */
121 #define DEFAULT_UST_CHANNEL_SUBBUF_NUM DEFAULT_CHANNEL_SUBBUF_NUM
122 /* See lttng-ust.h enum lttng_ust_output */
123 #define DEFAULT_UST_CHANNEL_OUTPUT LTTNG_EVENT_MMAP
124
125 /*
126 * Default timeout value for the sem_timedwait() call. Blocking forever is not
127 * wanted so a timeout is used to control the data flow and not freeze the
128 * session daemon.
129 */
130 #define DEFAULT_SEM_WAIT_TIMEOUT 30 /* in seconds */
131
132 /* Default network ports for trace streaming support */
133 #define DEFAULT_NETWORK_CONTROL_PORT 5342
134 #define DEFAULT_NETWORK_DATA_PORT 5343
135
136 /*
137 * If a thread stalls for this amount of time, it will be considered bogus (bad
138 * health).
139 */
140 #define DEFAULT_HEALTH_CHECK_DELTA_S 20
141 #define DEFAULT_HEALTH_CHECK_DELTA_NS 0
142
143 /*
144 * Wait period before retrying the lttng_data_available command in the lttng
145 * stop command of liblttng-ctl.
146 */
147 #define DEFAULT_DATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
148
149 #endif /* _DEFAULTS_H */
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