sessiond: enforce mmap output type for kernel metadata channel
[lttng-tools.git] / src / common / defaults.h
1 /*
2 * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
3 * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
4 * Copyright (C) 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 *
6 * SPDX-License-Identifier: GPL-2.0-only
7 *
8 */
9
10 #ifndef _DEFAULTS_H
11 #define _DEFAULTS_H
12
13 #include <pthread.h>
14 #include <common/macros.h>
15
16 /* Default unix group name for tracing. */
17 #define DEFAULT_TRACING_GROUP "tracing"
18
19 /*
20 * This value is defined in the CTF specification (see
21 * git://git.efficios.com/ctf.git in the file
22 * common-trace-format-specification.txt.
23 */
24 #define DEFAULT_METADATA_NAME "metadata"
25
26 /* Environment variable to set session daemon binary path. */
27 #define DEFAULT_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
28
29 /* Environment variable to set man pager binary path. */
30 #define DEFAULT_MAN_BIN_PATH_ENV "LTTNG_MAN_BIN_PATH"
31
32 /* Default man pager binary path. */
33 #define DEFAULT_MAN_BIN_PATH "/usr/bin/man"
34
35 /* Default trace output directory name */
36 #define DEFAULT_TRACE_DIR_NAME "lttng-traces"
37
38 /* Default size of a hash table */
39 #define DEFAULT_HT_SIZE 4
40
41 /* Default session daemon paths */
42 #define DEFAULT_HOME_DIR "/tmp"
43 #define DEFAULT_UST_SOCK_DIR DEFAULT_HOME_DIR "/ust-app-socks"
44 #define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
45 #define DEFAULT_TRACE_OUTPUT DEFAULT_HOME_DIR "/lttng"
46
47 /* Default directory where the trace are written in per domain */
48 #define DEFAULT_KERNEL_TRACE_DIR "kernel"
49 #define DEFAULT_UST_TRACE_DIR "ust"
50
51 /* Subpath for per PID or UID sessions. */
52 #define DEFAULT_UST_TRACE_PID_PATH "pid"
53 #define DEFAULT_UST_TRACE_UID_PATH "uid/%d/%u-bit"
54
55 /*
56 * Default session name for the lttng command line. This default value will
57 * get the date and time appended (%Y%m%d-%H%M%S) to it.
58 */
59 #define DEFAULT_SESSION_NAME "auto"
60
61 /* Default consumer paths */
62 #define DEFAULT_CONSUMERD_FILE "lttng-consumerd"
63
64 /* Default consumer paths */
65 #define DEFAULT_CONSUMERD_RUNDIR "%s"
66
67 /* Kernel consumer path */
68 #define DEFAULT_KCONSUMERD_PATH DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
69 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/command"
70 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/error"
71
72 /* UST 64-bit consumer path */
73 #define DEFAULT_USTCONSUMERD64_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
74 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/command"
75 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/error"
76
77 /* UST 32-bit consumer path */
78 #define DEFAULT_USTCONSUMERD32_PATH DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
79 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/command"
80 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/error"
81
82 /* Relayd path */
83 #define DEFAULT_RELAYD_RUNDIR "%s"
84 #define DEFAULT_RELAYD_PATH DEFAULT_RELAYD_RUNDIR "/relayd"
85
86 #define DEFAULT_RELAYD_MIN_FD_POOL_SIZE 100
87 /*
88 * The file descriptor pool size needs a reserve buffer to accommodates the
89 * indirect use of short-lived file descriptors. For instance, glibc will
90 * create a socket (and thus, use an fd) during calls to gethostname() or
91 * when querying the user's group. Other calls also probably make use of
92 * short-lived FDs.
93 *
94 * The theoritical maximal reserve corresponds to the number of threads as,
95 * in the worst case, they could all be making such calls.
96 *
97 * This value must be less than DEFAULT_RELAYD_MIN_FD_POOL_SIZE.
98 */
99 #define DEFAULT_RELAYD_FD_POOL_SIZE_RESERVE 10
100
101 /* Default lttng run directory */
102 #define DEFAULT_LTTNG_HOME_ENV_VAR "LTTNG_HOME"
103 #define DEFAULT_LTTNG_FALLBACK_HOME_ENV_VAR "HOME"
104 #define DEFAULT_LTTNG_RUNDIR CONFIG_LTTNG_SYSTEM_RUNDIR
105 #define DEFAULT_LTTNG_HOME_RUNDIR "%s/.lttng"
106 #define DEFAULT_LTTNG_SESSIOND_PIDFILE "lttng-sessiond.pid"
107 #define DEFAULT_LTTNG_SESSIOND_AGENTPORT_FILE "agent.port"
108 #define DEFAULT_LTTNG_SESSIOND_LOCKFILE "lttng-sessiond.lck"
109
110 /* Default probes list */
111 #define DEFAULT_LTTNG_KMOD_PROBES "LTTNG_KMOD_PROBES"
112
113 /* Default extra probes list */
114 #define DEFAULT_LTTNG_EXTRA_KMOD_PROBES "LTTNG_EXTRA_KMOD_PROBES"
115
116 /* Default unix socket path */
117 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
118 #define DEFAULT_HOME_CLIENT_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
119 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/sessiond-health"
120 #define DEFAULT_HOME_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
121 #define DEFAULT_GLOBAL_NOTIFICATION_CHANNEL_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/sessiond-notification"
122 #define DEFAULT_HOME_NOTIFICATION_CHANNEL_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-notification"
123
124 /* Default consumer health unix socket path */
125 #define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
126 #define DEFAULT_HOME_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd32/health"
127 #define DEFAULT_GLOBAL_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd64/health"
128 #define DEFAULT_HOME_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd64/health"
129 #define DEFAULT_GLOBAL_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/kconsumerd/health"
130 #define DEFAULT_HOME_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/kconsumerd/health"
131
132 /* Default relay health unix socket path */
133 #define DEFAULT_GLOBAL_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/relayd/health-%d"
134 #define DEFAULT_HOME_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_HOME_RUNDIR "/relayd/health-%d"
135
136 /* Default daemon configuration file path */
137 #define DEFAULT_SYSTEM_CONFIGPATH CONFIG_LTTNG_SYSTEM_CONFIGDIR \
138 "/lttng"
139
140 #define DEFAULT_DAEMON_CONFIG_FILE "lttng.conf"
141 #define DEFAULT_DAEMON_HOME_CONFIGPATH DEFAULT_LTTNG_HOME_RUNDIR "/" \
142 DEFAULT_DAEMON_CONFIG_FILE
143 #define DEFAULT_DAEMON_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" \
144 DEFAULT_DAEMON_CONFIG_FILE
145
146 /* Default session configuration file path */
147 #define DEFAULT_SESSION_PATH "sessions"
148 /* Auto load session in that directory. */
149 #define DEFAULT_SESSION_CONFIG_AUTOLOAD "auto"
150 #define DEFAULT_SESSION_HOME_CONFIGPATH DEFAULT_LTTNG_HOME_RUNDIR "/" \
151 DEFAULT_SESSION_PATH
152 #define DEFAULT_SESSION_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" \
153 DEFAULT_SESSION_PATH
154 #define DEFAULT_SESSION_CONFIG_FILE_EXTENSION ".lttng"
155 #define DEFAULT_SESSION_CONFIG_XSD_FILENAME "session.xsd"
156 #define DEFAULT_SESSION_CONFIG_XSD_PATH CONFIG_LTTNG_SYSTEM_DATADIR "/xml/lttng/"
157 #define DEFAULT_SESSION_CONFIG_XSD_PATH_ENV "LTTNG_SESSION_CONFIG_XSD_PATH"
158
159 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK \
160 DEFAULT_LTTNG_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
161 #define DEFAULT_HOME_APPS_UNIX_SOCK \
162 DEFAULT_LTTNG_HOME_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
163 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH \
164 "/" LTTNG_UST_WAIT_FILENAME
165 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH \
166 DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "-%d"
167
168 /*
169 * Value taken from the hard limit allowed by the kernel when using setrlimit
170 * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
171 */
172 #define DEFAULT_POLL_SIZE 65535
173
174 /*
175 * Format is %s_%d respectively channel name and CPU number. Eigth bytes
176 * are added here to add space for the CPU number. I guess 2^8 CPUs is more
177 * than enough. We might end up with quantum computing in a cell phone when
178 * reaching this limit.
179 */
180 #define DEFAULT_STREAM_NAME_LEN LTTNG_SYMBOL_NAME_LEN + 8
181
182 /* Default channel attributes */
183 #define DEFAULT_CHANNEL_NAME "channel0"
184 /* Default JUL domain channel name. */
185 #define DEFAULT_JUL_CHANNEL_NAME "lttng_jul_channel"
186 /* Default JUL tracepoint name. This is a wildcard for the JUL domain. */
187 #define DEFAULT_JUL_EVENT_COMPONENT "lttng_jul"
188 #define DEFAULT_JUL_EVENT_NAME DEFAULT_JUL_EVENT_COMPONENT ":*"
189
190 /* Default log4j domain channel name. */
191 #define DEFAULT_LOG4J_CHANNEL_NAME "lttng_log4j_channel"
192 /* Default log4j tracepoint name. This is a wildcard for the log4j domain. */
193 #define DEFAULT_LOG4J_EVENT_COMPONENT "lttng_log4j"
194 #define DEFAULT_LOG4J_EVENT_NAME DEFAULT_LOG4J_EVENT_COMPONENT ":*"
195
196 /* Default Python domain channel name. */
197 #define DEFAULT_PYTHON_CHANNEL_NAME "lttng_python_channel"
198 /* Default Python tracepoint name. This is a wildcard for the python domain. */
199 #define DEFAULT_PYTHON_EVENT_COMPONENT "lttng_python"
200 #define DEFAULT_PYTHON_EVENT_NAME DEFAULT_PYTHON_EVENT_COMPONENT ":*"
201
202 #define DEFAULT_CHANNEL_OVERWRITE -1
203 #define DEFAULT_CHANNEL_TRACEFILE_SIZE CONFIG_DEFAULT_CHANNEL_TRACEFILE_SIZE
204 #define DEFAULT_CHANNEL_TRACEFILE_COUNT CONFIG_DEFAULT_CHANNEL_TRACEFILE_COUNT
205
206 #define _DEFAULT_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_CHANNEL_SUBBUF_SIZE
207 #define _DEFAULT_CHANNEL_OUTPUT LTTNG_EVENT_MMAP
208
209 /* Metadata channel defaults. */
210 #define DEFAULT_METADATA_SUBBUF_SIZE CONFIG_DEFAULT_METADATA_SUBBUF_SIZE
211 #define DEFAULT_METADATA_SUBBUF_NUM CONFIG_DEFAULT_METADATA_SUBBUF_NUM
212 #define DEFAULT_METADATA_CACHE_SIZE CONFIG_DEFAULT_METADATA_CACHE_SIZE
213 #define DEFAULT_METADATA_SWITCH_TIMER 0
214 #define DEFAULT_METADATA_READ_TIMER 0
215 #define DEFAULT_METADATA_OVERWRITE 0
216 #define DEFAULT_METADATA_OUTPUT LTTNG_EVENT_MMAP
217
218 /* Kernel has different defaults */
219
220 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
221 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE
222 /*
223 * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
224 * Update help manually if override.
225 */
226 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM
227 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
228 #define DEFAULT_KERNEL_CHANNEL_OUTPUT LTTNG_EVENT_SPLICE
229 #define DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER CONFIG_DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER
230 #define DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER CONFIG_DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER
231 #define DEFAULT_KERNEL_CHANNEL_READ_TIMER CONFIG_DEFAULT_KERNEL_CHANNEL_READ_TIMER
232 #define DEFAULT_KERNEL_CHANNEL_LIVE_TIMER CONFIG_DEFAULT_KERNEL_CHANNEL_LIVE_TIMER
233 #define DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT
234
235 /* User space defaults */
236
237 /* Must be a power of 2 */
238 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE
239 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE
240 /* Must be a power of 2. Update help manuall if override. */
241 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM
242 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM
243 /* See lttng-ust.h enum lttng_ust_output */
244 #define DEFAULT_UST_PID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
245 #define DEFAULT_UST_UID_CHANNEL_OUTPUT _DEFAULT_CHANNEL_OUTPUT
246 /* Timers in usec. */
247 #define DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER
248 #define DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER
249 #define DEFAULT_UST_PID_CHANNEL_LIVE_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_LIVE_TIMER
250 #define DEFAULT_UST_UID_CHANNEL_LIVE_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_LIVE_TIMER
251 #define DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER
252 #define DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER
253
254 #define DEFAULT_UST_PID_CHANNEL_READ_TIMER CONFIG_DEFAULT_UST_PID_CHANNEL_READ_TIMER
255 #define DEFAULT_UST_UID_CHANNEL_READ_TIMER CONFIG_DEFAULT_UST_UID_CHANNEL_READ_TIMER
256
257 #define DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT
258 #define DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT
259
260 /*
261 * Default timeout value for the sem_timedwait() call. Blocking forever is not
262 * wanted so a timeout is used to control the data flow and not freeze the
263 * session daemon.
264 */
265 #define DEFAULT_SEM_WAIT_TIMEOUT 30 /* in seconds */
266
267 /* Default bind addresses for network services. */
268 #define DEFAULT_NETWORK_CONTROL_BIND_ADDRESS CONFIG_DEFAULT_NETWORK_CONTROL_BIND_ADDRESS
269 #define DEFAULT_NETWORK_DATA_BIND_ADDRESS CONFIG_DEFAULT_NETWORK_DATA_BIND_ADDRESS
270 #define DEFAULT_NETWORK_VIEWER_BIND_ADDRESS CONFIG_DEFAULT_NETWORK_VIEWER_BIND_ADDRESS
271 #define DEFAULT_AGENT_BIND_ADDRESS CONFIG_DEFAULT_AGENT_BIND_ADDRESS
272
273 /* Default network ports for trace streaming support. */
274 #define DEFAULT_NETWORK_CONTROL_PORT CONFIG_DEFAULT_NETWORK_CONTROL_PORT
275 #define DEFAULT_NETWORK_DATA_PORT CONFIG_DEFAULT_NETWORK_DATA_PORT
276 #define DEFAULT_NETWORK_VIEWER_PORT CONFIG_DEFAULT_NETWORK_VIEWER_PORT
277
278 /* Agent registration TCP port range. */
279 #define DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN
280 #define DEFAULT_AGENT_TCP_PORT_RANGE_END CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_END
281
282 /*
283 * If a thread stalls for this amount of time, it will be considered bogus (bad
284 * health).
285 */
286 #define DEFAULT_HEALTH_CHECK_DELTA_S 20
287 #define DEFAULT_HEALTH_CHECK_DELTA_NS 0
288
289 /*
290 * Wait period before retrying the lttng_data_pending command in the lttng
291 * stop command of liblttng-ctl.
292 */
293 #define DEFAULT_DATA_AVAILABILITY_WAIT_TIME_US 200000 /* usec */
294
295 /*
296 * Wait period before retrying the lttng_consumer_flushed_cache when
297 * the consumer receives metadata.
298 */
299 #define DEFAULT_METADATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
300
301 /*
302 * The usual value for the maximum TCP SYN retries time and TCP FIN timeout is
303 * 180 and 60 seconds on most Linux system and the default value since kernel
304 * 2.2 thus using the highest value. See tcp(7) for more details.
305 */
306 #define DEFAULT_INET_TCP_TIMEOUT 180 /* sec */
307
308 /* Maximum payload size for a control connection */
309
310 #define DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE CONFIG_DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE
311
312 /*
313 * Default receiving and sending timeout for an application socket.
314 */
315 #define DEFAULT_APP_SOCKET_RW_TIMEOUT CONFIG_DEFAULT_APP_SOCKET_RW_TIMEOUT
316 #define DEFAULT_APP_SOCKET_TIMEOUT_ENV "LTTNG_APP_SOCKET_TIMEOUT"
317
318 #define DEFAULT_UST_STREAM_FD_NUM 2 /* Number of fd per UST stream. */
319
320 #define DEFAULT_SNAPSHOT_NAME "snapshot"
321 #define DEFAULT_SNAPSHOT_MAX_SIZE 0 /* Unlimited. */
322
323 /* Suffix of an index file. */
324 #define DEFAULT_INDEX_FILE_SUFFIX ".idx"
325 #define DEFAULT_INDEX_DIR "index"
326
327 /* Default lttng command live timer value in usec. */
328 #define DEFAULT_LTTNG_LIVE_TIMER CONFIG_DEFAULT_LTTNG_LIVE_TIMER
329
330 /* Default runas worker name */
331 #define DEFAULT_RUN_AS_WORKER_NAME "lttng-runas"
332
333 /* Default LTTng MI XML namespace. */
334 #define DEFAULT_LTTNG_MI_NAMESPACE "https://lttng.org/xml/ns/lttng-mi"
335
336 /* Default thread stack size; the default mandated by pthread_create(3) */
337 #define DEFAULT_LTTNG_THREAD_STACK_SIZE 2097152
338
339 /* Default maximal size of message notification channel message payloads. */
340 #define DEFAULT_MAX_NOTIFICATION_CLIENT_MESSAGE_PAYLOAD_SIZE 65536
341
342 /* Default maximal size of trace archive location. */
343 #define DEFAULT_MAX_TRACE_ARCHIVE_LOCATION_PAYLOAD_SIZE 65536
344
345 /* Default maximal size of message notification channel message payloads. */
346 #define DEFAULT_CLIENT_MAX_QUEUED_NOTIFICATIONS_COUNT 100
347
348
349 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE"
350 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME"
351 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT"
352 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL"
353 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD"
354 #define DEFAULT_LTTNG_RELAYD_DISALLOW_CLEAR_ENV "LTTNG_RELAYD_DISALLOW_CLEAR"
355
356 #define DEFAULT_LTTNG_RELAYD_WORKING_DIRECTORY_ENV "LTTNG_RELAYD_WORKING_DIRECTORY"
357
358 /*
359 * Name of the intermediate directory used to rename the trace chunk of a
360 * session's first rotation.
361 */
362 #define DEFAULT_CHUNK_TMP_OLD_DIRECTORY ".tmp_old_chunk"
363 #define DEFAULT_CHUNK_TMP_NEW_DIRECTORY ".tmp_new_chunk"
364 #define DEFAULT_ARCHIVED_TRACE_CHUNKS_DIRECTORY "archives"
365 #define DEFAULT_UNLINKED_FILES_DIRECTORY ".unlinked"
366
367 /*
368 * Default timer value in usec for the rotate pending polling check on the
369 * relay when a rotation has completed on the consumer.
370 */
371 #define DEFAULT_ROTATE_PENDING_TIMER CONFIG_DEFAULT_ROTATE_PENDING_TIMER
372
373 /*
374 * Returns the default subbuf size.
375 *
376 * This function depends on a value that is set at constructor time, so it is
377 * unsafe to call it from another constructor.
378 */
379 LTTNG_HIDDEN
380 size_t default_get_channel_subbuf_size(void);
381
382 /*
383 * Returns the default metadata subbuf size.
384 *
385 * This function depends on a value that is set at constructor time, so it is
386 * unsafe to call it from another constructor.
387 */
388 LTTNG_HIDDEN
389 size_t default_get_metadata_subbuf_size(void);
390
391 /*
392 * Returns the default subbuf size for the kernel domain.
393 *
394 * This function depends on a value that is set at constructor time, so it is
395 * unsafe to call it from another constructor.
396 */
397 LTTNG_HIDDEN
398 size_t default_get_kernel_channel_subbuf_size(void);
399
400 /*
401 * Returns the default subbuf size for the UST domain per PID.
402 *
403 * This function depends on a value that is set at constructor time, so it is
404 * unsafe to call it from another constructor.
405 */
406 LTTNG_HIDDEN
407 size_t default_get_ust_pid_channel_subbuf_size(void);
408
409 /*
410 * Returns the default subbuf size for the UST domain per UID.
411 *
412 * This function depends on a value that is set at constructor time, so it is
413 * unsafe to call it from another constructor.
414 */
415 LTTNG_HIDDEN
416 size_t default_get_ust_uid_channel_subbuf_size(void);
417
418 /*
419 * Get the default pthread_attr to use on thread creation.
420 *
421 * Some libc, such as musl, don't honor the limit set for the stack size and use
422 * their own empirically chosen static value. This function checks if the
423 * current stack size is smaller than the stack size limit and if so returns a
424 * pthread_attr_t pointer where the thread stack size is set to the soft stack
425 * size limit.
426 */
427 LTTNG_HIDDEN
428 pthread_attr_t *default_pthread_attr(void);
429
430 #endif /* _DEFAULTS_H */
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