liblttctl/lttctl.h

   1 /*
   2  * lttctl.h
   3  *
   4  * Linux Trace Toolkit Control Library Header File
   5  *
   6  * Controls the ltt-control kernel module through debugfs.
   7  *
   8  * Copyright (c) 2005-2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25 #ifndef _LTTCTL_H
  26 #define _LTTCTL_H
  27
  28 int lttctl_init(void);
  29 int lttctl_destroy(void);
  30 int lttctl_setup_trace(const char *name);
  31 int lttctl_destroy_trace(const char *name);
  32 int lttctl_alloc_trace(const char *name);
  33 int lttctl_start(const char *name);
  34 int lttctl_pause(const char *name);
  35 int lttctl_set_trans(const char *name, const char *trans);
  36 int lttctl_set_channel_enable(const char *name, const char *channel,
  37                 int enable);
  38 int lttctl_set_channel_overwrite(const char *name, const char *channel,
  39                 int overwrite);
  40 int lttctl_set_channel_subbuf_num(const char *name, const char *channel,
  41                 unsigned subbuf_num);
  42 int lttctl_set_channel_subbuf_size(const char *name, const char *channel,
  43                 unsigned subbuf_size);
  44 int lttctl_set_channel_switch_timer(const char *name, const char *channel,
  45                 unsigned switch_timer);
  46
  47 /* Helper functions */
  48 int getdebugfsmntdir(char *mntdir);
  49
  50 #endif /*_LTTCTL_H */