include/lttng/tracelog.h

   1 #ifndef _LTTNG_UST_TRACELOG_H
   2 #define _LTTNG_UST_TRACELOG_H
   3
   4 /*
   5  * Copyright (C) 2013-2015  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-tracelog.h>
  27
  28 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 #define TP_TRACELOG_CB_TEMPLATE(level) \
  33         extern void _lttng_ust_tracelog_##level(const char *file, \
  34                 int line, const char *func, const char *fmt, ...)
  35
  36 TP_TRACELOG_CB_TEMPLATE(TRACE_EMERG);
  37 TP_TRACELOG_CB_TEMPLATE(TRACE_ALERT);
  38 TP_TRACELOG_CB_TEMPLATE(TRACE_CRIT);
  39 TP_TRACELOG_CB_TEMPLATE(TRACE_ERR);
  40 TP_TRACELOG_CB_TEMPLATE(TRACE_WARNING);
  41 TP_TRACELOG_CB_TEMPLATE(TRACE_NOTICE);
  42 TP_TRACELOG_CB_TEMPLATE(TRACE_INFO);
  43 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_SYSTEM);
  44 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_PROGRAM);
  45 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_PROCESS);
  46 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_MODULE);
  47 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_UNIT);
  48 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_FUNCTION);
  49 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_LINE);
  50 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG);
  51
  52 #undef TP_TRACELOG_CB_TEMPLATE
  53
  54 #define tracelog(level, fmt, ...)                                       \
  55         do {                                                            \
  56                 LTTNG_STAP_PROBEV(tracepoint_lttng_ust_tracelog, level, ## __VA_ARGS__); \
  57                 if (caa_unlikely(__tracepoint_lttng_ust_tracelog___##level.state)) \
  58                         _lttng_ust_tracelog_##level(__FILE__, __LINE__, __func__, \
  59                                 fmt, ## __VA_ARGS__); \
  60         } while (0)
  61
  62 #ifdef __cplusplus
  63 }
  64 #endif
  65
  66 #endif /* _LTTNG_UST_TRACELOG_H */