Update version to v2.5.0-rc2
[lttng-tools.git] / src / common / defaults.h
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9bda164d 1/*
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2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
3 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9bda164d 4 *
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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.
9bda164d 8 *
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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
d14d33bf 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
e848fc76 12 * more details.
9bda164d 13 *
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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.
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17 */
18
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19#ifndef _DEFAULTS_H
20#define _DEFAULTS_H
e848fc76 21
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22#include <config.h>
23
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24/* Default unix group name for tracing. */
25#define DEFAULT_TRACING_GROUP "tracing"
26
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27/*
28 * This value is defined in the CTF specification (see
29 * git://git.efficios.com/ctf.git in the file
30 * common-trace-format-specification.txt.
31 */
32#define DEFAULT_METADATA_NAME "metadata"
33
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34/* Environment variable to set session daemon binary path. */
35#define DEFAULT_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
36
37/* Default trace output directory name */
38#define DEFAULT_TRACE_DIR_NAME "lttng-traces"
39
f6a9efaa 40/* Default size of a hash table */
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41#define DEFAULT_HT_SIZE 4
42
43/* Default session daemon paths */
44#define DEFAULT_HOME_DIR "/tmp"
45#define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks"
46#define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
47#define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng"
48
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49/* Default directory where the trace are written in per domain */
50#define DEFAULT_KERNEL_TRACE_DIR "/kernel"
51#define DEFAULT_UST_TRACE_DIR "/ust"
52
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53/* Subpath for per PID or UID sessions. */
54#define DEFAULT_UST_TRACE_PID_PATH "/pid"
55#define DEFAULT_UST_TRACE_UID_PATH "/uid/%d/%u-bit"
56
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57/*
58 * Default session name for the lttng command line. This default value will
59 * get the date and time appended (%Y%m%d-%H%M%S) to it.
60 */
07424f16 61#define DEFAULT_SESSION_NAME "auto"
a4b92340 62
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63/* Default consumer paths */
64#define DEFAULT_CONSUMERD_RUNDIR "%s"
65
66/* Kernel consumer path */
67#define DEFAULT_KCONSUMERD_PATH DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
68#define DEFAULT_KCONSUMERD_CMD_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/command"
69#define DEFAULT_KCONSUMERD_ERR_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/error"
70
71/* UST 64-bit consumer path */
72#define DEFAULT_USTCONSUMERD64_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
73#define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/command"
74#define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/error"
75
76/* UST 32-bit consumer path */
77#define DEFAULT_USTCONSUMERD32_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
78#define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/command"
79#define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/error"
80
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81/* Relayd path */
82#define DEFAULT_RELAYD_RUNDIR "%s"
83#define DEFAULT_RELAYD_PATH DEFAULT_RELAYD_RUNDIR "/relayd"
84
990570ed 85/* Default lttng run directory */
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86#define DEFAULT_LTTNG_HOME_ENV_VAR "LTTNG_HOME"
87#define DEFAULT_LTTNG_FALLBACK_HOME_ENV_VAR "HOME"
d386c872 88#define DEFAULT_LTTNG_RUNDIR CONFIG_LTTNG_SYSTEM_RUNDIR
60922cb0 89#define DEFAULT_LTTNG_HOME_RUNDIR "%s/.lttng"
35f90c40 90#define DEFAULT_LTTNG_SESSIOND_PIDFILE "lttng-sessiond.pid"
cd9290dd 91#define DEFAULT_LTTNG_SESSIOND_JULPORT_FILE "jul.port"
990570ed 92
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93/* Default probes list */
94#define DEFAULT_LTTNG_KMOD_PROBES "LTTNG_KMOD_PROBES"
95
990570ed 96/* Default unix socket path */
60922cb0 97#define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
60922cb0 98#define DEFAULT_HOME_CLIENT_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
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99#define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/sessiond-health"
100#define DEFAULT_HOME_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
990570ed 101
5c635c72 102/* Default consumer health unix socket path */
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103#define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
104#define DEFAULT_HOME_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd32/health"
105#define DEFAULT_GLOBAL_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd64/health"
106#define DEFAULT_HOME_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd64/health"
107#define DEFAULT_GLOBAL_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/kconsumerd/health"
108#define DEFAULT_HOME_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/kconsumerd/health"
5c635c72 109
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110/* Default relay health unix socket path */
111#define DEFAULT_GLOBAL_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/relayd/health-%d"
112#define DEFAULT_HOME_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/relayd/health-%d"
113
1501a7f3 114/* Default daemon configuration file path */
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115#define DEFAULT_SYSTEM_CONFIGPATH CONFIG_LTTNG_SYSTEM_CONFIGDIR \
116 "/lttng"
117
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118#define DEFAULT_DAEMON_CONFIG_FILE "lttng.conf"
119#define DEFAULT_DAEMON_HOME_CONFIGPATH DEFAULT_LTTNG_HOME_RUNDIR "/" \
120 DEFAULT_DAEMON_CONFIG_FILE
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121#define DEFAULT_DAEMON_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" \
122 DEFAULT_DAEMON_CONFIG_FILE
123
124/* Default session configuration file path */
125#define DEFAULT_SESSION_PATH "sessions"
126#define DEFAULT_SESSION_HOME_CONFIGPATH DEFAULT_LTTNG_HOME_RUNDIR "/" \
127 DEFAULT_SESSION_PATH
128#define DEFAULT_SESSION_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" \
129 DEFAULT_SESSION_PATH
130#define DEFAULT_SESSION_CONFIG_FILE_EXTENSION ".lttng"
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131#define DEFAULT_SESSION_CONFIG_XSD_FILENAME "session.xsd"
132#define DEFAULT_SESSION_CONFIG_XSD_PATH CONFIG_LTTNG_SYSTEM_DATADIR "/xml/lttng/"
133#define DEFAULT_SESSION_CONFIG_XSD_PATH_ENV "LTTNG_SESSION_CONFIG_XSD_PATH"
1501a7f3 134
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135#define DEFAULT_GLOBAL_APPS_UNIX_SOCK \
136 DEFAULT_LTTNG_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
137#define DEFAULT_HOME_APPS_UNIX_SOCK \
138 DEFAULT_LTTNG_HOME_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
139#define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH \
140 "/" LTTNG_UST_WAIT_FILENAME
141#define DEFAULT_HOME_APPS_WAIT_SHM_PATH \
142 DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "-%d"
143
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144/*
145 * Value taken from the hard limit allowed by the kernel when using setrlimit
146 * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
147 */
148#define DEFAULT_POLL_SIZE 65535
149
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150/*
151 * Format is %s_%d respectively channel name and CPU number. Eigth bytes
152 * are added here to add space for the CPU number. I guess 2^8 CPUs is more
153 * than enough. We might end up with quantum computing in a cell phone when
154 * reaching this limit.
155 */
156#define DEFAULT_STREAM_NAME_LEN LTTNG_SYMBOL_NAME_LEN + 8
157
f3ed775e 158/* Default channel attributes */
3817e7df 159#define DEFAULT_CHANNEL_NAME "channel0"
0475c50c 160/* Default JUL domain channel name. */
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161#define DEFAULT_JUL_CHANNEL_NAME "lttng_jul_channel"
162/* Default JUL tracepoint name. This is a wildcard for the JUL domain. */
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163#define DEFAULT_SYS_JUL_EVENT_NAME "lttng_jul:sys*"
164#define DEFAULT_USER_JUL_EVENT_NAME "lttng_jul:user*"
0475c50c 165/* JUL default channel name. */
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166#define DEFAULT_CHANNEL_OVERWRITE 0
167#define DEFAULT_CHANNEL_TRACEFILE_SIZE 0
168#define DEFAULT_CHANNEL_TRACEFILE_COUNT 0
169
170/* Must always be a power of 2 */
171#define _DEFAULT_CHANNEL_SUBBUF_SIZE 4096 /* bytes */
172/* Must always be a power of 2 */
173#define _DEFAULT_CHANNEL_SUBBUF_NUM 4
174#define _DEFAULT_CHANNEL_SWITCH_TIMER 0 /* usec */
ecc48a90 175#define _DEFAULT_CHANNEL_LIVE_TIMER 0 /* usec */
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176#define _DEFAULT_CHANNEL_READ_TIMER 200000 /* usec */
177#define _DEFAULT_CHANNEL_OUTPUT LTTNG_EVENT_MMAP
178
179/* Metadata channel defaults. */
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180#define DEFAULT_METADATA_SUBBUF_SIZE 4096
181#define DEFAULT_METADATA_SUBBUF_NUM 2
331744e3 182#define DEFAULT_METADATA_CACHE_SIZE 4096
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183#define DEFAULT_METADATA_SWITCH_TIMER _DEFAULT_CHANNEL_SWITCH_TIMER
184#define DEFAULT_METADATA_READ_TIMER 0
185#define DEFAULT_METADATA_OUTPUT _DEFAULT_CHANNEL_OUTPUT
e6ddca71 186
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187/* Kernel has different defaults */
188
189/* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
0a9c6494 190#define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE 262144 /* bytes */
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191/*
192 * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
193 * Update help manually if override.
194 */
0a9c6494 195#define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM _DEFAULT_CHANNEL_SUBBUF_NUM
b389abbe 196/* See lttng-kernel.h enum lttng_kernel_output for channel output */
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197#define DEFAULT_KERNEL_CHANNEL_OUTPUT LTTNG_EVENT_SPLICE
198#define DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER _DEFAULT_CHANNEL_SWITCH_TIMER
199#define DEFAULT_KERNEL_CHANNEL_READ_TIMER _DEFAULT_CHANNEL_READ_TIMER
ecc48a90 200#define DEFAULT_KERNEL_CHANNEL_LIVE_TIMER _DEFAULT_CHANNEL_LIVE_TIMER
6bb9e85f 201
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202/* User space defaults */
203
204/* Must be a power of 2 */
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205#define DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE _DEFAULT_CHANNEL_SUBBUF_SIZE
206#define DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE 131072 /* bytes */
9f778c9a 207/* Must be a power of 2. Update help manuall if override. */
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208#define DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM _DEFAULT_CHANNEL_SUBBUF_NUM
209#define DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM _DEFAULT_CHANNEL_SUBBUF_NUM
28ca4a8b 210/* See lttng-ust.h enum lttng_ust_output */
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211#define DEFAULT_UST_PID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
212#define DEFAULT_UST_UID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
213/* Timers in usec. */
214#define DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER _DEFAULT_CHANNEL_SWITCH_TIMER
215#define DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER _DEFAULT_CHANNEL_SWITCH_TIMER
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216#define DEFAULT_UST_PID_CHANNEL_LIVE_TIMER _DEFAULT_CHANNEL_LIVE_TIMER
217#define DEFAULT_UST_UID_CHANNEL_LIVE_TIMER _DEFAULT_CHANNEL_LIVE_TIMER
0b0dd29a 218
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219#define DEFAULT_UST_PID_CHANNEL_READ_TIMER 0 /* usec */
220#define DEFAULT_UST_UID_CHANNEL_READ_TIMER 0 /* usec */
6bb9e85f 221
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222/*
223 * Default timeout value for the sem_timedwait() call. Blocking forever is not
224 * wanted so a timeout is used to control the data flow and not freeze the
225 * session daemon.
226 */
227#define DEFAULT_SEM_WAIT_TIMEOUT 30 /* in seconds */
228
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229/* Default bind addresses for network services. */
230#define DEFAULT_NETWORK_CONTROL_BIND_ADDRESS "0.0.0.0"
231#define DEFAULT_NETWORK_DATA_BIND_ADDRESS "0.0.0.0"
232#define DEFAULT_NETWORK_VIEWER_BIND_ADDRESS "localhost"
233#define DEFAULT_JUL_BIND_ADDRESS "localhost"
234
235/* Default network ports for trace streaming support. */
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236#define DEFAULT_NETWORK_CONTROL_PORT 5342
237#define DEFAULT_NETWORK_DATA_PORT 5343
d3e2ba59 238#define DEFAULT_NETWORK_VIEWER_PORT 5344
3a5713da 239
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240/* JUL registration TCP port. */
241#define DEFAULT_JUL_TCP_PORT 5345
242
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243/*
244 * If a thread stalls for this amount of time, it will be considered bogus (bad
245 * health).
246 */
247#define DEFAULT_HEALTH_CHECK_DELTA_S 20
248#define DEFAULT_HEALTH_CHECK_DELTA_NS 0
249
38ee087f 250/*
6d805429 251 * Wait period before retrying the lttng_data_pending command in the lttng
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252 * stop command of liblttng-ctl.
253 */
254#define DEFAULT_DATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
255
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256/*
257 * Wait period before retrying the lttng_consumer_flushed_cache when
258 * the consumer receives metadata.
259 */
260#define DEFAULT_METADATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
261
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262/*
263 * The usual value for the maximum TCP SYN retries time and TCP FIN timeout is
264 * 180 and 60 seconds on most Linux system and the default value since kernel
265 * 2.2 thus using the highest value. See tcp(7) for more details.
266 */
267#define DEFAULT_INET_TCP_TIMEOUT 180 /* sec */
268
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269/*
270 * Default receiving and sending timeout for an application socket.
271 */
272#define DEFAULT_APP_SOCKET_RW_TIMEOUT 5 /* sec */
273#define DEFAULT_APP_SOCKET_TIMEOUT_ENV "LTTNG_APP_SOCKET_TIMEOUT"
274
ffe60014 275#define DEFAULT_UST_STREAM_FD_NUM 2 /* Number of fd per UST stream. */
8b3bd7a3 276
da3c9ec1 277#define DEFAULT_SNAPSHOT_NAME "snapshot"
27babd3a 278#define DEFAULT_SNAPSHOT_MAX_SIZE 0 /* Unlimited. */
da3c9ec1 279
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280/* Suffix of an index file. */
281#define DEFAULT_INDEX_FILE_SUFFIX ".idx"
1c20f0e2 282#define DEFAULT_INDEX_DIR "index"
309167d2 283
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284/* Default lttng command live timer value in usec. */
285#define DEFAULT_LTTNG_LIVE_TIMER 1000000
286
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287extern size_t default_channel_subbuf_size;
288extern size_t default_metadata_subbuf_size;
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289extern size_t default_ust_pid_channel_subbuf_size;
290extern size_t default_ust_uid_channel_subbuf_size;
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291extern size_t default_kernel_channel_subbuf_size;
292
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293/*
294 * Returns the default subbuf size.
295 *
296 * This function depends on a value that is set at constructor time, so it is
297 * unsafe to call it from another constructor.
298 */
299static inline
300size_t default_get_channel_subbuf_size(void)
301{
302 return default_channel_subbuf_size;
303}
304
305/*
306 * Returns the default metadata subbuf size.
307 *
308 * This function depends on a value that is set at constructor time, so it is
309 * unsafe to call it from another constructor.
310 */
311static inline
312size_t default_get_metadata_subbuf_size(void)
313{
314 return default_metadata_subbuf_size;
315}
316
317/*
318 * Returns the default subbuf size for the kernel domain.
319 *
320 * This function depends on a value that is set at constructor time, so it is
321 * unsafe to call it from another constructor.
322 */
323static inline
324size_t default_get_kernel_channel_subbuf_size(void)
325{
326 return default_kernel_channel_subbuf_size;
327}
328
329/*
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330 * Returns the default subbuf size for the UST domain per PID.
331 *
332 * This function depends on a value that is set at constructor time, so it is
333 * unsafe to call it from another constructor.
334 */
335static inline
336size_t default_get_ust_pid_channel_subbuf_size(void)
337{
338 return default_ust_pid_channel_subbuf_size;
339}
340
341/*
342 * Returns the default subbuf size for the UST domain per UID.
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343 *
344 * This function depends on a value that is set at constructor time, so it is
345 * unsafe to call it from another constructor.
346 */
347static inline
0a9c6494 348size_t default_get_ust_uid_channel_subbuf_size(void)
8b3bd7a3 349{
0a9c6494 350 return default_ust_uid_channel_subbuf_size;
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351}
352
990570ed 353#endif /* _DEFAULTS_H */
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