src/common/defaults.h

   1 /*
   2  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
   3  *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *
   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.
   8  *
   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
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  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.
  17  */
  18
  19 #ifndef _DEFAULTS_H
  20 #define _DEFAULTS_H
  21
  22 /* Default unix group name for tracing. */
  23 #define DEFAULT_TRACING_GROUP                   "tracing"
  24
  25 /* Environment variable to set session daemon binary path. */
  26 #define DEFAULT_SESSIOND_PATH_ENV               "LTTNG_SESSIOND_PATH"
  27
  28 /* Default trace output directory name */
  29 #define DEFAULT_TRACE_DIR_NAME                  "lttng-traces"
  30
  31 /* Default size of a hash table */
  32 #define DEFAULT_HT_SIZE                         4
  33
  34 /* Default session daemon paths */
  35 #define DEFAULT_HOME_DIR                                                "/tmp"
  36 #define DEFAULT_UST_SOCK_DIR                    DEFAULT_HOME_DIR "/ust-app-socks"
  37 #define DEFAULT_GLOBAL_APPS_PIPE                DEFAULT_UST_SOCK_DIR "/global"
  38 #define DEFAULT_TRACE_OUTPUT                    DEFAULT_HOME_DIR "/lttng"
  39
  40 #define DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH       "/lttng-ust-apps-wait"
  41 #define DEFAULT_HOME_APPS_WAIT_SHM_PATH         "/lttng-ust-apps-wait-%u"
  42
  43 /* Default directory where the trace are written in per domain */
  44 #define DEFAULT_KERNEL_TRACE_DIR                "/kernel"
  45 #define DEFAULT_UST_TRACE_DIR                   "/ust"
  46
  47 /* Default consumer paths */
  48 #define DEFAULT_CONSUMERD_RUNDIR                "%s"
  49
  50 /* Kernel consumer path */
  51 #define DEFAULT_KCONSUMERD_PATH                 DEFAULT_CONSUMERD_RUNDIR "/kconsumerd"
  52 #define DEFAULT_KCONSUMERD_CMD_SOCK_PATH        DEFAULT_KCONSUMERD_PATH "/command"
  53 #define DEFAULT_KCONSUMERD_ERR_SOCK_PATH        DEFAULT_KCONSUMERD_PATH "/error"
  54
  55 /* UST 64-bit consumer path */
  56 #define DEFAULT_USTCONSUMERD64_PATH             DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd64"
  57 #define DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH    DEFAULT_USTCONSUMERD64_PATH "/command"
  58 #define DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH    DEFAULT_USTCONSUMERD64_PATH "/error"
  59
  60 /* UST 32-bit consumer path */
  61 #define DEFAULT_USTCONSUMERD32_PATH             DEFAULT_CONSUMERD_RUNDIR "/ustconsumerd32"
  62 #define DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH    DEFAULT_USTCONSUMERD32_PATH "/command"
  63 #define DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH    DEFAULT_USTCONSUMERD32_PATH "/error"
  64
  65
  66 /* Default lttng run directory */
  67 #define DEFAULT_LTTNG_RUNDIR                    "/var/run/lttng"
  68 #define DEFAULT_LTTNG_HOME_RUNDIR               "%s/.lttng"
  69
  70 /* Default unix socket path */
  71 #define DEFAULT_GLOBAL_CLIENT_UNIX_SOCK         DEFAULT_LTTNG_RUNDIR "/client-lttng-sessiond"
  72 #define DEFAULT_GLOBAL_APPS_UNIX_SOCK           DEFAULT_LTTNG_RUNDIR "/apps-lttng-sessiond"
  73 #define DEFAULT_HOME_APPS_UNIX_SOCK             DEFAULT_LTTNG_HOME_RUNDIR "/apps-lttng-sessiond"
  74 #define DEFAULT_HOME_CLIENT_UNIX_SOCK           DEFAULT_LTTNG_HOME_RUNDIR "/client-lttng-sessiond"
  75 #define DEFAULT_GLOBAL_HEALTH_UNIX_SOCK         DEFAULT_LTTNG_RUNDIR "/health.sock"
  76 #define DEFAULT_HOME_HEALTH_UNIX_SOCK           DEFAULT_LTTNG_HOME_RUNDIR "/health.sock"
  77
  78 /*
  79  * Value taken from the hard limit allowed by the kernel when using setrlimit
  80  * with RLIMIT_NOFILE on an Intel i7 CPU and Linux 3.0.3.
  81  */
  82 #define DEFAULT_POLL_SIZE 65535
  83
  84 /* Default channel attributes */
  85 #define DEFAULT_CHANNEL_NAME            "channel0"
  86 #define DEFAULT_CHANNEL_OVERWRITE       0       /* usec */
  87 /* DEFAULT_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
  88 #define DEFAULT_CHANNEL_SUBBUF_SIZE     4096    /* bytes */
  89 /* DEFAULT_CHANNEL_SUBBUF_NUM must always be a power of 2 */
  90 #define DEFAULT_CHANNEL_SUBBUF_NUM      4
  91 #define DEFAULT_CHANNEL_SWITCH_TIMER    0       /* usec */
  92 #define DEFAULT_CHANNEL_READ_TIMER              200     /* usec */
  93 #define DEFAULT_CHANNEL_OUTPUT          LTTNG_EVENT_MMAP
  94
  95 #define DEFAULT_METADATA_SUBBUF_SIZE    4096
  96 #define DEFAULT_METADATA_SUBBUF_NUM     2
  97
  98 /* Kernel has different defaults */
  99
 100 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
 101 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE  262144    /* bytes */
 102 /*
 103  * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
 104  * Update help manually if override.
 105  */
 106 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM   DEFAULT_CHANNEL_SUBBUF_NUM
 107 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
 108 #define DEFAULT_KERNEL_CHANNEL_OUTPUT       LTTNG_EVENT_SPLICE
 109
 110 /* User space defaults */
 111
 112 /* Must be a power of 2 */
 113 #define DEFAULT_UST_CHANNEL_SUBBUF_SIZE     4096    /* bytes */
 114 /* Must be a power of 2. Update help manuall if override. */
 115 #define DEFAULT_UST_CHANNEL_SUBBUF_NUM      DEFAULT_CHANNEL_SUBBUF_NUM
 116 /* See lttng-ust.h enum lttng_ust_output */
 117 #define DEFAULT_UST_CHANNEL_OUTPUT          LTTNG_EVENT_MMAP
 118
 119 /*
 120  * Default timeout value for the sem_timedwait() call. Blocking forever is not
 121  * wanted so a timeout is used to control the data flow and not freeze the
 122  * session daemon.
 123  */
 124 #define DEFAULT_SEM_WAIT_TIMEOUT            30    /* in seconds */
 125
 126 /* Default network ports for trace streaming support */
 127 #define DEFAULT_NETWORK_CONTROL_PORT        5342
 128 #define DEFAULT_NETWORK_DATA_PORT           5343
 129
 130 #endif /* _DEFAULTS_H */