src/common/defaults.hpp

   1 /*
   2  * Copyright (C) 2011 EfficiOS Inc.
   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 <common/macros.hpp>
  14
  15 #include <pthread.h>
  16
  17 /* Default unix group name for tracing. */
  18 #define DEFAULT_TRACING_GROUP "tracing"
  19
  20 /*
  21  * This value is defined in the CTF specification (see
  22  * git://git.efficios.com/ctf.git in the file
  23  * common-trace-format-specification.txt.
  24  */
  25 #define DEFAULT_METADATA_NAME "metadata"
  26
  27 /* Environment variable to set session daemon binary path. */
  28 #define DEFAULT_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
  29
  30 /* Environment variable to set man pager binary path. */
  31 #define DEFAULT_MAN_BIN_PATH_ENV "LTTNG_MAN_BIN_PATH"
  32
  33 /* Environment variable to set man manpath. */
  34 #define DEFAULT_MANPATH "LTTNG_MANPATH"
  35
  36 /* Default man pager binary path. */
  37 #define DEFAULT_MAN_BIN_PATH "/usr/bin/man"
  38
  39 /* Default trace output directory name */
  40 #define DEFAULT_TRACE_DIR_NAME "lttng-traces"
  41
  42 /* Default size of a hash table */
  43 #define DEFAULT_HT_SIZE 4
  44
  45 /* Default session daemon paths */
  46 #define DEFAULT_HOME_DIR         "/tmp"
  47 #define DEFAULT_UST_SOCK_DIR     DEFAULT_HOME_DIR "/ust-app-socks"
  48 #define DEFAULT_GLOBAL_APPS_PIPE DEFAULT_UST_SOCK_DIR "/global"
  49 #define DEFAULT_TRACE_OUTPUT     DEFAULT_HOME_DIR "/lttng"
  50
  51 /* Default directory where the trace are written in per domain */
  52 #define DEFAULT_KERNEL_TRACE_DIR "kernel"
  53 #define DEFAULT_UST_TRACE_DIR    "ust"
  54
  55 /* Subpath for per PID or UID sessions. */
  56 #define DEFAULT_UST_TRACE_PID_PATH "pid"
  57 #define DEFAULT_UST_TRACE_UID_PATH "uid/%d/%u-bit"
  58
  59 /*
  60  * Default session name for the lttng command line. This default value will
  61  * get the date and time appended (%Y%m%d-%H%M%S) to it.
  62  */
  63 #define DEFAULT_SESSION_NAME "auto"
  64
  65 /* Default consumer paths */
  66 #define DEFAULT_CONSUMERD_FILE "lttng-consumerd"
  67
  68 /* Default consumer paths */
  69 #define DEFAULT_CONSUMERD_RUNDIR "%s"
  70
  71 /* Kernel consumer path */
  72 #define DEFAULT_KCONSUMERD_PATH          DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
  73 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/command"
  74 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH DEFAULT_KCONSUMERD_PATH "/error"
  75
  76 /* UST 64-bit consumer path */
  77 #define DEFAULT_USTCONSUMERD64_PATH          DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
  78 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/command"
  79 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH DEFAULT_USTCONSUMERD64_PATH "/error"
  80
  81 /* UST 32-bit consumer path */
  82 #define DEFAULT_USTCONSUMERD32_PATH          DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
  83 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/command"
  84 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH DEFAULT_USTCONSUMERD32_PATH "/error"
  85
  86 /* Relayd path */
  87 #define DEFAULT_RELAYD_RUNDIR "%s"
  88 #define DEFAULT_RELAYD_PATH   DEFAULT_RELAYD_RUNDIR "/relayd"
  89
  90 #define DEFAULT_RELAYD_MIN_FD_POOL_SIZE 100
  91 /*
  92  * The file descriptor pool size needs a reserve buffer to accommodates the
  93  * indirect use of short-lived file descriptors. For instance, glibc will
  94  * create a socket (and thus, use an fd) during calls to gethostname() or
  95  * when querying the user's group. Other calls also probably make use of
  96  * short-lived FDs.
  97  *
  98  * The theoritical maximal reserve corresponds to the number of threads as,
  99  * in the worst case, they could all be making such calls.
 100  *
 101  * This value must be less than DEFAULT_RELAYD_MIN_FD_POOL_SIZE.
 102  */
 103 #define DEFAULT_RELAYD_FD_POOL_SIZE_RESERVE 10
 104
 105 /* Default lttng run directory */
 106 #define DEFAULT_LTTNG_HOME_ENV_VAR            "LTTNG_HOME"
 107 #define DEFAULT_LTTNG_FALLBACK_HOME_ENV_VAR   "HOME"
 108 #define DEFAULT_LTTNG_RUNDIR                  CONFIG_LTTNG_SYSTEM_RUNDIR
 109 #define DEFAULT_LTTNG_HOME_RUNDIR             "%s/.lttng"
 110 #define DEFAULT_LTTNG_SESSIOND_PIDFILE        "lttng-sessiond.pid"
 111 #define DEFAULT_LTTNG_SESSIOND_AGENTPORT_FILE "agent.port"
 112 #define DEFAULT_LTTNG_SESSIOND_LOCKFILE       "lttng-sessiond.lck"
 113
 114 /* Default probes list */
 115 #define DEFAULT_LTTNG_KMOD_PROBES "LTTNG_KMOD_PROBES"
 116
 117 /* Default extra probes list */
 118 #define DEFAULT_LTTNG_EXTRA_KMOD_PROBES "LTTNG_EXTRA_KMOD_PROBES"
 119
 120 /* Default unix socket path */
 121 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK               DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
 122 #define DEFAULT_HOME_CLIENT_UNIX_SOCK                 DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
 123 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK               DEFAULT_LTTNG_RUNDIR "/sessiond-health"
 124 #define DEFAULT_HOME_HEALTH_UNIX_SOCK                 DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-health"
 125 #define DEFAULT_GLOBAL_NOTIFICATION_CHANNEL_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/sessiond-notification"
 126 #define DEFAULT_HOME_NOTIFICATION_CHANNEL_UNIX_SOCK \
 127         DEFAULT_LTTNG_HOME_RUNDIR "/sessiond-notification"
 128
 129 /* Default consumer health unix socket path */
 130 #define DEFAULT_GLOBAL_USTCONSUMER32_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd32/health"
 131 #define DEFAULT_HOME_USTCONSUMER32_HEALTH_UNIX_SOCK \
 132         DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd32/health"
 133 #define DEFAULT_GLOBAL_USTCONSUMER64_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/ustconsumerd64/health"
 134 #define DEFAULT_HOME_USTCONSUMER64_HEALTH_UNIX_SOCK \
 135         DEFAULT_LTTNG_HOME_RUNDIR "/ustconsumerd64/health"
 136 #define DEFAULT_GLOBAL_KCONSUMER_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/kconsumerd/health"
 137 #define DEFAULT_HOME_KCONSUMER_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_HOME_RUNDIR "/kconsumerd/health"
 138
 139 /* Default relay health unix socket path */
 140 #define DEFAULT_GLOBAL_RELAY_HEALTH_UNIX_SOCK DEFAULT_LTTNG_RUNDIR "/relayd/health-%d"
 141 #define DEFAULT_HOME_RELAY_HEALTH_UNIX_SOCK   DEFAULT_LTTNG_HOME_RUNDIR "/relayd/health-%d"
 142
 143 /* Default daemon configuration file path */
 144 #define DEFAULT_SYSTEM_CONFIGPATH     \
 145         CONFIG_LTTNG_SYSTEM_CONFIGDIR \
 146         "/lttng"
 147
 148 #define DEFAULT_DAEMON_CONFIG_FILE       "lttng.conf"
 149 #define DEFAULT_DAEMON_HOME_CONFIGPATH   DEFAULT_LTTNG_HOME_RUNDIR "/" DEFAULT_DAEMON_CONFIG_FILE
 150 #define DEFAULT_DAEMON_SYSTEM_CONFIGPATH DEFAULT_SYSTEM_CONFIGPATH "/" DEFAULT_DAEMON_CONFIG_FILE
 151
 152 /* Default session configuration file path */
 153 #define DEFAULT_SESSION_PATH "sessions"
 154 /* Auto load session in that directory. */
 155 #define DEFAULT_SESSION_CONFIG_AUTOLOAD       "auto"
 156 #define DEFAULT_SESSION_HOME_CONFIGPATH       DEFAULT_LTTNG_HOME_RUNDIR "/" DEFAULT_SESSION_PATH
 157 #define DEFAULT_SESSION_SYSTEM_CONFIGPATH     DEFAULT_SYSTEM_CONFIGPATH "/" DEFAULT_SESSION_PATH
 158 #define DEFAULT_SESSION_CONFIG_FILE_EXTENSION ".lttng"
 159 #define DEFAULT_SESSION_CONFIG_XSD_FILENAME   "session.xsd"
 160 #define DEFAULT_SESSION_CONFIG_XSD_PATH       CONFIG_LTTNG_SYSTEM_DATADIR "/xml/lttng/"
 161 #define DEFAULT_SESSION_CONFIG_XSD_PATH_ENV   "LTTNG_SESSION_CONFIG_XSD_PATH"
 162
 163 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK     DEFAULT_LTTNG_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 164 #define DEFAULT_HOME_APPS_UNIX_SOCK       DEFAULT_LTTNG_HOME_RUNDIR "/" LTTNG_UST_SOCK_FILENAME
 165 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH "/" LTTNG_UST_WAIT_FILENAME
 166 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH   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 /* Number of buckets in the event notifier error count map. */
 283 #define DEFAULT_EVENT_NOTIFIER_ERROR_COUNT_MAP_SIZE \
 284         CONFIG_DEFAULT_EVENT_NOTIFIER_ERROR_COUNT_MAP_SIZE
 285
 286 /*
 287  * If a thread stalls for this amount of time, it will be considered bogus (bad
 288  * health).
 289  */
 290 #define DEFAULT_HEALTH_CHECK_DELTA_S  20
 291 #define DEFAULT_HEALTH_CHECK_DELTA_NS 0
 292
 293 /*
 294  * Wait period before retrying the lttng_data_pending command in the lttng
 295  * stop command of liblttng-ctl.
 296  */
 297 #define DEFAULT_DATA_AVAILABILITY_WAIT_TIME_US 200000 /* usec */
 298
 299 /*
 300  * Wait period before retrying the lttng_consumer_flushed_cache when
 301  * the consumer receives metadata.
 302  */
 303 #define DEFAULT_METADATA_AVAILABILITY_WAIT_TIME 200000 /* usec */
 304
 305 /*
 306  * The usual value for the maximum TCP SYN retries time and TCP FIN timeout is
 307  * 180 and 60 seconds on most Linux system and the default value since kernel
 308  * 2.2 thus using the highest value. See tcp(7) for more details.
 309  */
 310 #define DEFAULT_INET_TCP_TIMEOUT 180 /* sec */
 311
 312 /* Maximum payload size for a control connection */
 313
 314 #define DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE \
 315         CONFIG_DEFAULT_NETWORK_RELAYD_CTRL_MAX_PAYLOAD_SIZE
 316
 317 /*
 318  * Default receiving and sending timeout for an application socket.
 319  */
 320 #define DEFAULT_APP_SOCKET_RW_TIMEOUT  CONFIG_DEFAULT_APP_SOCKET_RW_TIMEOUT
 321 #define DEFAULT_APP_SOCKET_TIMEOUT_ENV "LTTNG_APP_SOCKET_TIMEOUT"
 322
 323 #define DEFAULT_UST_STREAM_FD_NUM 2 /* Number of fd per UST stream. */
 324
 325 #define DEFAULT_SNAPSHOT_NAME     "snapshot"
 326 #define DEFAULT_SNAPSHOT_MAX_SIZE 0 /* Unlimited. */
 327
 328 /* Suffix of an index file. */
 329 #define DEFAULT_INDEX_FILE_SUFFIX ".idx"
 330 #define DEFAULT_INDEX_DIR         "index"
 331
 332 /* Default lttng command live timer value in usec. */
 333 #define DEFAULT_LTTNG_LIVE_TIMER CONFIG_DEFAULT_LTTNG_LIVE_TIMER
 334
 335 /* Default runas worker name */
 336 #define DEFAULT_RUN_AS_WORKER_NAME "lttng-runas"
 337
 338 /* Default LTTng MI XML namespace. */
 339 #define DEFAULT_LTTNG_MI_NAMESPACE "https://lttng.org/xml/ns/lttng-mi"
 340
 341 /* Default thread stack size; the default mandated by pthread_create(3) */
 342 #define DEFAULT_LTTNG_THREAD_STACK_SIZE 2097152
 343
 344 /* Default maximal size of message notification channel message payloads. */
 345 #define DEFAULT_MAX_NOTIFICATION_CLIENT_MESSAGE_PAYLOAD_SIZE 65536
 346
 347 /* Default maximal size of trace archive location. */
 348 #define DEFAULT_MAX_TRACE_ARCHIVE_LOCATION_PAYLOAD_SIZE 65536
 349
 350 /* Default maximal size of message notification channel message payloads. */
 351 #define DEFAULT_CLIENT_MAX_QUEUED_NOTIFICATIONS_COUNT 100
 352
 353 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ENV           "LTTNG_RELAYD_TCP_KEEP_ALIVE"
 354 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME_ENV "LTTNG_RELAYD_TCP_KEEP_ALIVE_IDLE_TIME"
 355 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT_ENV \
 356         "LTTNG_RELAYD_TCP_KEEP_ALIVE_MAX_PROBE_COUNT"
 357 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL_ENV \
 358         "LTTNG_RELAYD_TCP_KEEP_ALIVE_PROBE_INTERVAL"
 359 #define DEFAULT_LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD_ENV \
 360         "LTTNG_RELAYD_TCP_KEEP_ALIVE_ABORT_THRESHOLD"
 361 #define DEFAULT_LTTNG_RELAYD_DISALLOW_CLEAR_ENV "LTTNG_RELAYD_DISALLOW_CLEAR"
 362
 363 #define DEFAULT_LTTNG_RELAYD_WORKING_DIRECTORY_ENV "LTTNG_RELAYD_WORKING_DIRECTORY"
 364
 365 /*
 366  * Name of the intermediate directory used to rename the trace chunk of a
 367  * session's first rotation.
 368  */
 369 #define DEFAULT_CHUNK_TMP_OLD_DIRECTORY         ".tmp_old_chunk"
 370 #define DEFAULT_CHUNK_TMP_NEW_DIRECTORY         ".tmp_new_chunk"
 371 #define DEFAULT_ARCHIVED_TRACE_CHUNKS_DIRECTORY "archives"
 372 #define DEFAULT_UNLINKED_FILES_DIRECTORY        ".unlinked"
 373
 374 /*
 375  * Default timer value in usec for the rotate pending polling check on the
 376  * relay when a rotation has completed on the consumer.
 377  */
 378 #define DEFAULT_ROTATE_PENDING_TIMER CONFIG_DEFAULT_ROTATE_PENDING_TIMER
 379
 380 /*
 381  * Returns the default subbuf size.
 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 size_t default_get_channel_subbuf_size();
 387
 388 /*
 389  * Returns the default metadata subbuf size.
 390  *
 391  * This function depends on a value that is set at constructor time, so it is
 392  * unsafe to call it from another constructor.
 393  */
 394 size_t default_get_metadata_subbuf_size();
 395
 396 /*
 397  * Returns the default subbuf size for the kernel domain.
 398  *
 399  * This function depends on a value that is set at constructor time, so it is
 400  * unsafe to call it from another constructor.
 401  */
 402 size_t default_get_kernel_channel_subbuf_size();
 403
 404 /*
 405  * Returns the default subbuf size for the UST domain per PID.
 406  *
 407  * This function depends on a value that is set at constructor time, so it is
 408  * unsafe to call it from another constructor.
 409  */
 410 size_t default_get_ust_pid_channel_subbuf_size();
 411
 412 /*
 413  * Returns the default subbuf size for the UST domain per UID.
 414  *
 415  * This function depends on a value that is set at constructor time, so it is
 416  * unsafe to call it from another constructor.
 417  */
 418 size_t default_get_ust_uid_channel_subbuf_size();
 419
 420 /*
 421  * Get the default pthread_attr to use on thread creation.
 422  *
 423  * Some libc, such as musl, don't honor the limit set for the stack size and use
 424  * their own empirically chosen static value. This function checks if the
 425  * current stack size is smaller than the stack size limit and if so returns a
 426  * pthread_attr_t pointer where the thread stack size is set to the soft stack
 427  * size limit.
 428  */
 429 pthread_attr_t *default_pthread_attr();
 430
 431 #endif /* _DEFAULTS_H */