liblttng-ust/lttng-tracer.h

   1 /*
   2  * SPDX-License-Identifier: LGPL-2.1-only
   3  *
   4  * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  *
   6  * This contains the definitions for the Linux Trace Toolkit tracer.
   7  *
   8  * Ported to userspace by Pierre-Marc Fournier.
   9  */
  10
  11 #ifndef _LTTNG_TRACER_H
  12 #define _LTTNG_TRACER_H
  13
  14 #include <stdarg.h>
  15 #include <stdint.h>
  16 #include <lttng/ust-events.h>
  17 #include "lttng-tracer-core.h"
  18 #include "compat.h"
  19
  20 /* Tracer properties */
  21 #define CTF_MAGIC_NUMBER                0xC1FC1FC1
  22 #define TSDL_MAGIC_NUMBER               0x75D11D57
  23
  24 /* CTF specification version followed */
  25 #define CTF_SPEC_MAJOR                  1
  26 #define CTF_SPEC_MINOR                  8
  27
  28 /*
  29  * Number of milliseconds to retry before failing metadata writes on buffer full
  30  * condition. (10 seconds)
  31  */
  32 #define LTTNG_METADATA_TIMEOUT_MSEC     10000
  33
  34 #define LTTNG_RFLAG_EXTENDED            RING_BUFFER_RFLAG_END
  35 #define LTTNG_RFLAG_END                 (LTTNG_RFLAG_EXTENDED << 1)
  36
  37 #endif /* _LTTNG_TRACER_H */