include/lttng/tracef.h

   1 #ifndef _LTTNG_UST_TRACEF_H
   2 #define _LTTNG_UST_TRACEF_H
   3
   4 /*
   5  * Copyright (C) 2013-2014  Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  20  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <lttng/lttng-ust-tracef.h>
  27
  28 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 extern
  33 void _lttng_ust_tracef(const char *fmt, ...);
  34
  35 extern
  36 void _lttng_ust_vtracef(const char *fmt, va_list ap);
  37
  38 #define tracef(fmt, ...)                                                \
  39         do {                                                            \
  40                 LTTNG_STAP_PROBEV(tracepoint_lttng_ust_tracef, event, ## __VA_ARGS__); \
  41                 if (caa_unlikely(__tracepoint_lttng_ust_tracef___event.state)) \
  42                         _lttng_ust_tracef(fmt, ## __VA_ARGS__);         \
  43         } while (0)
  44
  45 #define vtracef(fmt, ap)                                                \
  46         do {                                                            \
  47                 if (caa_unlikely(__tracepoint_lttng_ust_tracef___event.state)) \
  48                         _lttng_ust_vtracef(fmt, ap);            \
  49         } while (0)
  50 #ifdef __cplusplus
  51 }
  52 #endif
  53
  54 #endif /* _LTTNG_UST_TRACEF_H */