src/common/defaults.h

   1 /*
   2  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
   3  *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *               2015 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License, version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #ifndef _DEFAULTS_H
  21 #define _DEFAULTS_H
  22
  23 #include <pthread.h>
  24 #include <common/macros.h>
  25
  26 /* Default unix group name for tracing. */
  27 #define DEFAULT_TRACING_GROUP                   "tracing"
  28
  29 /*
  30  * This value is defined in the CTF specification (see
  31  * git://git.efficios.com/ctf.git in the file
  32  * common-trace-format-specification.txt.
  33  */
  34 #define DEFAULT_METADATA_NAME                   "metadata"
  35
  36 /* Environment variable to set session daemon binary path. */
  37 #define DEFAULT_SESSIOND_PATH_ENV               "LTTNG_SESSIOND_PATH"
  38
  39 /* Environment variable to set man pager binary path. */
  40 #define DEFAULT_MAN_BIN_PATH_ENV                "LTTNG_MAN_BIN_PATH"
  41
  42 /* Default man pager binary path. */
  43 #define DEFAULT_MAN_BIN_PATH                    "/usr/bin/man"
  44
  45 /* Default trace output directory name */
  46 #define DEFAULT_TRACE_DIR_NAME                  "lttng-traces"
  47
  48 /* Default size of a hash table */
  49 #define DEFAULT_HT_SIZE                         4
  50
  51 /* Default session daemon paths */
  52 #define DEFAULT_HOME_DIR                                                "/tmp"
  53 #define DEFAULT_UST_SOCK_DIR                    DEFAULT_HOME_DIR "/ust-app-socks"
  54 #define DEFAULT_GLOBAL_APPS_PIPE                DEFAULT_UST_SOCK_DIR "/global"
  55 #define DEFAULT_TRACE_OUTPUT                    DEFAULT_HOME_DIR "/lttng"
  56
  57 /* Default directory where the trace are written in per domain */
  58 #define DEFAULT_KERNEL_TRACE_DIR                "kernel"
  59 #define DEFAULT_UST_TRACE_DIR                   "ust"
  60
  61 /* Subpath for per PID or UID sessions. */
  62 #define DEFAULT_UST_TRACE_PID_PATH               "/pid"
  63 #define DEFAULT_UST_TRACE_UID_PATH               "/uid/%d/%u-bit"
  64
  65 /*
  66  * Default session name for the lttng command line. This default value will
  67  * get the date and time appended (%Y%m%d-%H%M%S) to it.
  68  */
  69 #define DEFAULT_SESSION_NAME                    "auto"
  70
  71 /* Default consumer paths */
  72 #define DEFAULT_CONSUMERD_FILE                  "lttng-consumerd"
  73
  74 /* Default consumer paths */
  75 #define DEFAULT_CONSUMERD_RUNDIR                "%s"
  76
  77 /* Kernel consumer path */
  78 #define DEFAULT_KCONSUMERD_PATH                 DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
  79 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH        DEFAULT_KCONSUMERD_PATH "/command"
  80 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH        DEFAULT_KCONSUMERD_PATH "/error"
  81
  82 /* UST 64-bit consumer path */
  83 #define DEFAULT_USTCONSUMERD64_PATH             DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
  84 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH    DEFAULT_USTCONSUMERD64_PATH "/command"
  85 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH    DEFAULT_USTCONSUMERD64_PATH "/error"
  86
  87 /* UST 32-bit consumer path */
  88 #define DEFAULT_USTCONSUMERD32_PATH             DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
  89 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH    DEFAULT_USTCONSUMERD32_PATH "/command"
  90 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH    DEFAULT_USTCONSUMERD32_PATH "/error"
  91
  92 /* Relayd path */
  93 #define DEFAULT_RELAYD_RUNDIR                   "%s"
  94 #define DEFAULT_RELAYD_PATH                     DEFAULT_RELAYD_RUNDIR "/relayd"
  95
  96 /* Default lttng run directory */
  97 #define DEFAULT_LTTNG_HOME_ENV_VAR              "LTTNG_HOME"
  98 #define DEFAULT_LTTNG_FALLBACK_HOME_ENV_VAR     "HOME"
  99 #define DEFAULT_LTTNG_RUNDIR                    CONFIG_LTTNG_SYSTEM_RUNDIR
 100 #define DEFAULT_LTTNG_HOME_RUNDIR               "%s/.lttng"
 101 #define DEFAULT_LTTNG_SESSIOND_PIDFILE          "lttng-sessiond.pid"
 102 #define DEFAULT_LTTNG_SESSIOND_AGENTPORT_FILE   "agent.port"
 103 #define DEFAULT_LTTNG_SESSIOND_LOCKFILE         "lttng-sessiond.lck"
 104
 105 /* Default probes list */
 106 #define DEFAULT_LTTNG_KMOD_PROBES               "LTTNG_KMOD_PROBES"
 107
 108 /* Default extra probes list */
 109 #define DEFAULT_LTTNG_EXTRA_KMOD_PROBES         "LTTNG_EXTRA_KMOD_PROBES"
 110
 111 /* Default unix socket path */
 112 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK                 DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
 113 #define DEFAULT_HOME_CLIENT_UNIX_SOCK                   DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
 114 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK                 DEFAULT_LTTNG_RUNDIR "/sessiond-health"
 115 #define DEFAULT_HOME_HEALTH_UNIX_SOCK                   DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
 116 #define DEFAULT_GLOBAL_NOTIFICATION_CHANNEL_UNIX_SOCK   DEFAULT_LTTNG_RUNDIR "/sessiond-notification"
 117 #define DEFAULT_HOME_NOTIFICATION_CHANNEL_UNIX_SOCK     DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-notification"
 118
 119 /* Default consumer health unix socket path */
 120 #define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
 121 #define DEFAULT_HOME_USTCONSUMER32_HEALTH_UNIX_SOCK     DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd32/health"
 122 #define DEFAULT_GLOBAL_USTCONSUMER64_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_RUNDIR "/ustconsumerd64/health"
 123 #define DEFAULT_HOME_USTCONSUMER64_HEALTH_UNIX_SOCK     DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd64/health"
 124 #define DEFAULT_GLOBAL_KCONSUMER_HEALTH_UNIX_SOCK       DEFAULT_LTTNG_RUNDIR "/kconsumerd/health"
 125 #define DEFAULT_HOME_KCONSUMER_HEALTH_UNIX_SOCK         DEFAULT_LTTNG_HOME_RUNDIR "/kconsumerd/health"
 126
 127 /* Default relay health unix socket path */
 128 #define DEFAULT_GLOBAL_RELAY_HEALTH_UNIX_SOCK           DEFAULT_LTTNG_RUNDIR "/relayd/health-%d"
 129 #define DEFAULT_HOME_RELAY_HEALTH_UNIX_SOCK             DEFAULT_LTTNG_HOME_RUNDIR "/relayd/health-%d"
 130
 131 /* Default daemon configuration file path */
 132 #define DEFAULT_SYSTEM_CONFIGPATH               CONFIG_LTTNG_SYSTEM_CONFIGDIR \
 133         "/lttng"
 134
 135 #define DEFAULT_DAEMON_CONFIG_FILE              "lttng.conf"
 136 #define DEFAULT_DAEMON_HOME_CONFIGPATH          DEFAULT_LTTNG_HOME_RUNDIR "/" \
 137         DEFAULT_DAEMON_CONFIG_FILE
 138 #define DEFAULT_DAEMON_SYSTEM_CONFIGPATH        DEFAULT_SYSTEM_CONFIGPATH "/" \
 139         DEFAULT_DAEMON_CONFIG_FILE
 140
 141 /* Default session configuration file path */
 142 #define DEFAULT_SESSION_PATH                    "sessions"
 143 /* Auto load session in that directory. */
 144 #define DEFAULT_SESSION_CONFIG_AUTOLOAD         "auto"
 145 #define DEFAULT_SESSION_HOME_CONFIGPATH         DEFAULT_LTTNG_HOME_RUNDIR "/" \
 146         DEFAULT_SESSION_PATH
 147 #define DEFAULT_SESSION_SYSTEM_CONFIGPATH       DEFAULT_SYSTEM_CONFIGPATH "/" \
 148         DEFAULT_SESSION_PATH
 149 #define DEFAULT_SESSION_CONFIG_FILE_EXTENSION   ".lttng"
 150 #define DEFAULT_SESSION_CONFIG_XSD_FILENAME     "session.xsd"
 151 #define DEFAULT_SESSION_CONFIG_XSD_PATH         CONFIG_LTTNG_SYSTEM_DATADIR "/xml/lttng/"
 152 #define DEFAULT_SESSION_CONFIG_XSD_PATH_ENV     "LTTNG_SESSION_CONFIG_XSD_PATH"
 153
 154 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK \
 155         DEFAULT_LTTNG_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 156 #define DEFAULT_HOME_APPS_UNIX_SOCK \
 157         DEFAULT_LTTNG_HOME_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 158 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH \
 159         "/" LTTNG_UST_WAIT_FILENAME
 160 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH \
 161         DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "-%d"
 162
 163 /*
 164  * Value taken from the hard limit allowed by the kernel when using setrlimit
 165  * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
 166  */
 167 #define DEFAULT_POLL_SIZE 65535
 168
 169 /*
 170  * Format is %s_%d respectively channel name and CPU number. Eigth bytes
 171  * are added here to add space for the CPU number. I guess 2^8 CPUs is more
 172  * than enough. We might end up with quantum computing in a cell phone when
 173  * reaching this limit.
 174  */
 175 #define DEFAULT_STREAM_NAME_LEN        LTTNG_SYMBOL_NAME_LEN + 8
 176
 177 /* Default channel attributes */
 178 #define DEFAULT_CHANNEL_NAME            "channel0"
 179 /* Default JUL domain channel name. */
 180 #define DEFAULT_JUL_CHANNEL_NAME        "lttng_jul_channel"
 181 /* Default JUL tracepoint name. This is a wildcard for the JUL domain. */
 182 #define DEFAULT_JUL_EVENT_COMPONENT     "lttng_jul"
 183 #define DEFAULT_JUL_EVENT_NAME          DEFAULT_JUL_EVENT_COMPONENT ":*"
 184
 185 /* Default log4j domain channel name. */
 186 #define DEFAULT_LOG4J_CHANNEL_NAME        "lttng_log4j_channel"
 187 /* Default log4j tracepoint name. This is a wildcard for the log4j domain. */
 188 #define DEFAULT_LOG4J_EVENT_COMPONENT     "lttng_log4j"
 189 #define DEFAULT_LOG4J_EVENT_NAME          DEFAULT_LOG4J_EVENT_COMPONENT ":*"
 190
 191 /* Default Python domain channel name. */
 192 #define DEFAULT_PYTHON_CHANNEL_NAME       "lttng_python_channel"
 193 /* Default Python tracepoint name. This is a wildcard for the python domain. */
 194 #define DEFAULT_PYTHON_EVENT_COMPONENT    "lttng_python"
 195 #define DEFAULT_PYTHON_EVENT_NAME         DEFAULT_PYTHON_EVENT_COMPONENT ":*"
 196
 197 #define DEFAULT_CHANNEL_OVERWRITE       -1
 198 #define DEFAULT_CHANNEL_TRACEFILE_SIZE  CONFIG_DEFAULT_CHANNEL_TRACEFILE_SIZE
 199 #define DEFAULT_CHANNEL_TRACEFILE_COUNT CONFIG_DEFAULT_CHANNEL_TRACEFILE_COUNT
 200
 201 #define _DEFAULT_CHANNEL_SUBBUF_SIZE   CONFIG_DEFAULT_CHANNEL_SUBBUF_SIZE
 202 #define _DEFAULT_CHANNEL_OUTPUT                 LTTNG_EVENT_MMAP
 203
 204 /* Metadata channel defaults. */
 205 #define DEFAULT_METADATA_SUBBUF_SIZE    CONFIG_DEFAULT_METADATA_SUBBUF_SIZE
 206 #define DEFAULT_METADATA_SUBBUF_NUM     CONFIG_DEFAULT_METADATA_SUBBUF_NUM
 207 #define DEFAULT_METADATA_CACHE_SIZE     CONFIG_DEFAULT_METADATA_CACHE_SIZE
 208 #define DEFAULT_METADATA_SWITCH_TIMER   CONFIG_DEFAULT_METADATA_SWITCH_TIMER
 209 #define DEFAULT_METADATA_READ_TIMER     CONFIG_DEFAULT_METADATA_READ_TIMER
 210 #define DEFAULT_METADATA_OUTPUT                 _DEFAULT_CHANNEL_OUTPUT
 211
 212 /* Kernel has different defaults */
 213
 214 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
 215 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE      CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE
 216 /*
 217  * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
 218  * Update help manually if override.
 219  */
 220 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM       CONFIG_DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM
 221 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
 222 #define DEFAULT_KERNEL_CHANNEL_OUTPUT                   LTTNG_EVENT_SPLICE
 223 #define DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER     CONFIG_DEFAULT_KERNEL_CHANNEL_SWITCH_TIMER
 224 #define DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER    CONFIG_DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER
 225 #define DEFAULT_KERNEL_CHANNEL_READ_TIMER       CONFIG_DEFAULT_KERNEL_CHANNEL_READ_TIMER
 226 #define DEFAULT_KERNEL_CHANNEL_LIVE_TIMER       CONFIG_DEFAULT_KERNEL_CHANNEL_LIVE_TIMER
 227 #define DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT CONFIG_DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT
 228
 229 /* User space defaults */
 230
 231 /* Must be a power of 2 */
 232 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE     CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_SIZE
 233 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE     CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_SIZE
 234 /* Must be a power of 2. Update help manuall if override. */
 235 #define DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM      CONFIG_DEFAULT_UST_PID_CHANNEL_SUBBUF_NUM
 236 #define DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM      CONFIG_DEFAULT_UST_UID_CHANNEL_SUBBUF_NUM
 237 /* See lttng-ust.h enum lttng_ust_output */
 238 #define DEFAULT_UST_PID_CHANNEL_OUTPUT                  _DEFAULT_CHANNEL_OUTPUT
 239 #define DEFAULT_UST_UID_CHANNEL_OUTPUT                  _DEFAULT_CHANNEL_OUTPUT
 240 /* Timers in usec. */
 241 #define DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER    CONFIG_DEFAULT_UST_PID_CHANNEL_SWITCH_TIMER
 242 #define DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER    CONFIG_DEFAULT_UST_UID_CHANNEL_SWITCH_TIMER
 243 #define DEFAULT_UST_PID_CHANNEL_LIVE_TIMER      CONFIG_DEFAULT_UST_PID_CHANNEL_LIVE_TIMER
 244 #define DEFAULT_UST_UID_CHANNEL_LIVE_TIMER      CONFIG_DEFAULT_UST_UID_CHANNEL_LIVE_TIMER
 245 #define DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER   CONFIG_DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER
 246 #define DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER   CONFIG_DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER
 247
 248 #define DEFAULT_UST_PID_CHANNEL_READ_TIMER      CONFIG_DEFAULT_UST_PID_CHANNEL_READ_TIMER
 249 #define DEFAULT_UST_UID_CHANNEL_READ_TIMER      CONFIG_DEFAULT_UST_UID_CHANNEL_READ_TIMER
 250
 251 #define DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT        CONFIG_DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT
 252 #define DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT        CONFIG_DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT
 253
 254 /*
 255  * Default timeout value for the sem_timedwait() call. Blocking forever is not
 256  * wanted so a timeout is used to control the data flow and not freeze the
 257  * session daemon.
 258  */
 259 #define DEFAULT_SEM_WAIT_TIMEOUT            30    /* in seconds */
 260
 261 /* Default bind addresses for network services. */
 262 #define DEFAULT_NETWORK_CONTROL_BIND_ADDRESS    CONFIG_DEFAULT_NETWORK_CONTROL_BIND_ADDRESS
 263 #define DEFAULT_NETWORK_DATA_BIND_ADDRESS       CONFIG_DEFAULT_NETWORK_DATA_BIND_ADDRESS
 264 #define DEFAULT_NETWORK_VIEWER_BIND_ADDRESS     CONFIG_DEFAULT_NETWORK_VIEWER_BIND_ADDRESS
 265 #define DEFAULT_AGENT_BIND_ADDRESS              CONFIG_DEFAULT_AGENT_BIND_ADDRESS
 266
 267 /* Default network ports for trace streaming support. */
 268 #define DEFAULT_NETWORK_CONTROL_PORT        CONFIG_DEFAULT_NETWORK_CONTROL_PORT
 269 #define DEFAULT_NETWORK_DATA_PORT           CONFIG_DEFAULT_NETWORK_DATA_PORT
 270 #define DEFAULT_NETWORK_VIEWER_PORT         CONFIG_DEFAULT_NETWORK_VIEWER_PORT
 271
 272 /* Agent registration TCP port range. */
 273 #define DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN  CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN
 274 #define DEFAULT_AGENT_TCP_PORT_RANGE_END    CONFIG_DEFAULT_AGENT_TCP_PORT_RANGE_END
 275
 276 /*
 277  * If a thread stalls for this amount of time, it will be considered bogus (bad
 278  * health).
 279  */
 280 #define DEFAULT_HEALTH_CHECK_DELTA_S        20
 281 #define DEFAULT_HEALTH_CHECK_DELTA_NS       0
 282
 283 /*
 284  * Wait period before retrying the lttng_data_pending command in the lttng
 285  * stop command of liblttng-ctl.
 286  */
 287 #define DEFAULT_DATA_AVAILABILITY_WAIT_TIME_US 200000  /* usec */
 288
 289 /*
 290  * Wait period before retrying the lttng_consumer_flushed_cache when
 291  * the consumer receives metadata.
 292  */
 293 #define DEFAULT_METADATA_AVAILABILITY_WAIT_TIME 200000  /* usec */
 294
 295 /*
 296  * The usual value for the maximum TCP SYN retries time and TCP FIN timeout is
 297  * 180 and 60 seconds on most Linux system and the default value since kernel
 298  * 2.2 thus using the highest value. See tcp(7) for more details.
 299  */
 300 #define DEFAULT_INET_TCP_TIMEOUT                        180     /* sec */
 301
 302 /* Maximum payload size for a control connection */
 303
 304 #define DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE CONFIG_DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE
 305
 306 /*
 307  * Default receiving and sending timeout for an application socket.
 308  */
 309 #define DEFAULT_APP_SOCKET_RW_TIMEOUT       CONFIG_DEFAULT_APP_SOCKET_RW_TIMEOUT
 310 #define DEFAULT_APP_SOCKET_TIMEOUT_ENV      "LTTNG_APP_SOCKET_TIMEOUT"
 311
 312 #define DEFAULT_UST_STREAM_FD_NUM                       2 /* Number of fd per UST stream. */
 313
 314 #define DEFAULT_SNAPSHOT_NAME                           "snapshot"
 315 #define DEFAULT_SNAPSHOT_MAX_SIZE                       0 /* Unlimited. */
 316
 317 /* Suffix of an index file. */
 318 #define DEFAULT_INDEX_FILE_SUFFIX                       ".idx"
 319 #define DEFAULT_INDEX_DIR                                       "index"
 320
 321 /* Default lttng command live timer value in usec. */
 322 #define DEFAULT_LTTNG_LIVE_TIMER                        CONFIG_DEFAULT_LTTNG_LIVE_TIMER
 323
 324 /* Default runas worker name */
 325 #define DEFAULT_RUN_AS_WORKER_NAME                      "lttng-runas"
 326
 327 /* Default LTTng MI XML namespace. */
 328 #define DEFAULT_LTTNG_MI_NAMESPACE              "https://lttng.org/xml/ns/lttng-mi"
 329
 330 /* Default thread stack size; the default mandated by pthread_create(3) */
 331 #define DEFAULT_LTTNG_THREAD_STACK_SIZE         2097152
 332
 333 /* Default maximal size of message notification channel message payloads. */
 334 #define DEFAULT_MAX_NOTIFICATION_CLIENT_MESSAGE_PAYLOAD_SIZE    65536
 335
 336 /* Default maximal size of trace archive location. */
 337 #define DEFAULT_MAX_TRACE_ARCHIVE_LOCATION_PAYLOAD_SIZE         65536
 338
 339 /* Default maximal size of message notification channel message payloads. */
 340 #define DEFAULT_CLIENT_MAX_QUEUED_NOTIFICATIONS_COUNT           100
 341
 342
 343 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE"
 344 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME"
 345 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT"
 346 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL"
 347 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD"
 348
 349 /*
 350  * Name of the intermediate directory used to rename the trace chunk of a
 351  * session's first rotation.
 352  */
 353 #define DEFAULT_TEMPORARY_CHUNK_RENAME_DIRECTORY        ".tmp_rename_chunk"
 354 #define DEFAULT_ARCHIVED_TRACE_CHUNKS_DIRECTORY         "archives"
 355
 356 /*
 357  * Default timer value in usec for the rotate pending polling check on the
 358  * relay when a rotation has completed on the consumer.
 359  */
 360 #define DEFAULT_ROTATE_PENDING_TIMER    CONFIG_DEFAULT_ROTATE_PENDING_TIMER
 361
 362 /*
 363  * Returns the default subbuf size.
 364  *
 365  * This function depends on a value that is set at constructor time, so it is
 366  * unsafe to call it from another constructor.
 367  */
 368 LTTNG_HIDDEN
 369 size_t default_get_channel_subbuf_size(void);
 370
 371 /*
 372  * Returns the default metadata subbuf size.
 373  *
 374  * This function depends on a value that is set at constructor time, so it is
 375  * unsafe to call it from another constructor.
 376  */
 377 LTTNG_HIDDEN
 378 size_t default_get_metadata_subbuf_size(void);
 379
 380 /*
 381  * Returns the default subbuf size for the kernel domain.
 382  *
 383  * This function depends on a value that is set at constructor time, so it is
 384  * unsafe to call it from another constructor.
 385  */
 386 LTTNG_HIDDEN
 387 size_t default_get_kernel_channel_subbuf_size(void);
 388
 389 /*
 390  * Returns the default subbuf size for the UST domain per PID.
 391  *
 392  * This function depends on a value that is set at constructor time, so it is
 393  * unsafe to call it from another constructor.
 394  */
 395 LTTNG_HIDDEN
 396 size_t default_get_ust_pid_channel_subbuf_size(void);
 397
 398 /*
 399  * Returns the default subbuf size for the UST domain per UID.
 400  *
 401  * This function depends on a value that is set at constructor time, so it is
 402  * unsafe to call it from another constructor.
 403  */
 404 LTTNG_HIDDEN
 405 size_t default_get_ust_uid_channel_subbuf_size(void);
 406
 407 /*
 408  * Get the default pthread_attr to use on thread creation.
 409  *
 410  * Some libc, such as musl, don't honor the limit set for the stack size and use
 411  * their own empirically chosen static value. This function checks if the
 412  * current stack size is smaller than the stack size limit and if so returns a
 413  * pthread_attr_t pointer where the thread stack size is set to the soft stack
 414  * size limit.
 415  */
 416 LTTNG_HIDDEN
 417 pthread_attr_t *default_pthread_attr(void);
 418
 419 #endif /* _DEFAULTS_H */