third_party/libevent/log.h

   1 /*
   2  * Copyright (c) 2000-2004 Niels Provos <provos@citi.umich.edu>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27 #ifndef _LOG_H_
  28 #define _LOG_H_
  29
  30 #ifdef __GNUC__
  31 #define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b)))
  32 #else
  33 #define EV_CHECK_FMT(a,b)
  34 #endif
  35
  36 void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3);
  37 void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2);
  38 void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3);
  39 void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2);
  40 void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2);
  41 void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2);
  42
  43 #ifdef USE_DEBUG
  44 #define event_debug(x) _event_debugx x
  45 #else
  46 #define event_debug(x) do {;} while (0)
  47 #endif
  48
  49 #undef EV_CHECK_FMT
  50
  51 #endif