uspace/lib/c/include/io/log.h

   1 /*
   2  * Copyright (c) 2011 Vojtech Horky
   3  * Copyright (c) 2011 Jiri Svoboda
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright
  11  *   notice, this list of conditions and the following disclaimer.
  12  * - Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * - The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 /** @addtogroup libc
  31  * @{
  32  */
  33
  34 #ifndef LIBC_IO_LOG_H_
  35 #define LIBC_IO_LOG_H_
  36
  37 #include <stdarg.h>
  38 #include <inttypes.h>
  39 #include <bool.h>
  40
  41 typedef enum {
  42         LVL_FATAL,
  43         LVL_ERROR,
  44         LVL_WARN,
  45         LVL_NOTE,
  46         LVL_DEBUG,
  47         LVL_DEBUG2,
  48
  49         /** For checking range of values */
  50         LVL_LIMIT
  51 } log_level_t;
  52
  53 typedef sysarg_t log_t;
  54 #define PRIlogctx PRIxn
  55 #define LOG_DEFAULT ((log_t) -1)
  56 #define LOG_NO_PARENT ((log_t) 0)
  57
  58 extern const char *log_level_str(log_level_t);
  59 extern int log_level_from_str(const char *, log_level_t *);
  60
  61 extern int log_init(const char *);
  62 extern log_t log_create(const char *, log_t);
  63
  64 extern void log_msg(log_t, log_level_t, const char *, ...);
  65 extern void log_msgv(log_t, log_level_t, const char *, va_list);
  66
  67 #endif
  68
  69 /** @}
  70  */