include/lttng/liblttngctl.h

   1 /*
   2  * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17  */
  18
  19 #ifndef _LIBLTTNGCTL_H
  20 #define _LIBLTTNGCTL_H
  21
  22 #include <limits.h>
  23
  24 /* Default unix group name for tracing.
  25  */
  26 #define DEFAULT_TRACING_GROUP "tracing"
  27
  28 /* Environment variable to set session daemon
  29  * binary path.
  30  */
  31 #define LTTNG_SESSIOND_PATH_ENV "LTTNG_SESSIOND_PATH"
  32
  33 /* From libuuid
  34  */
  35 #define UUID_STR_LEN 37
  36
  37 /* Simple structure representing a session.
  38  */
  39 struct lttng_session {
  40         char name[NAME_MAX];
  41         char uuid[UUID_STR_LEN];
  42 };
  43
  44 extern int lttng_create_session(const char *name, char *session_id);
  45 extern int lttng_connect_sessiond(void);
  46 extern int lttng_set_tracing_group(const char *name);
  47 extern int lttng_check_session_daemon(void);
  48 extern const char *lttng_get_readable_code(int code);
  49 extern size_t lttng_ust_list_apps(pid_t **pids);
  50 extern size_t lttng_list_sessions(struct lttng_session **sessions);
  51
  52 #endif /* _LIBLTTNGCTL_H */