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 */