include/lttng-kernel.h

   1 /*
   2  * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
   3  *                      Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   4  *                      David Goulet <david.goulet@polymtl.ca>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19  */
  20
  21 #ifndef _LTTNG_KERNEL_H
  22 #define _LTTNG_KERNEL_H
  23
  24 #include <stdint.h>
  25
  26 typedef uint64_t u64;
  27
  28 /*
  29  * LTTng DebugFS ABI structures.
  30  */
  31 enum lttng_instrum_type {
  32         INSTRUM_TRACEPOINTS,
  33 };
  34
  35 struct lttng_channel {
  36         int overwrite;         /* 1: overwrite, 0: discard */
  37         u64 subbuf_size;
  38         u64 num_subbuf;
  39         unsigned int switch_timer_interval;
  40         unsigned int read_timer_interval;
  41 };
  42
  43 struct lttng_event {
  44         enum lttng_instrum_type itype;
  45         char name[];
  46 };
  47
  48 #endif /* _LTTNG_KERNEL_H */