uspace/srv/logger/logger.h

   1 /*
   2  * Copyright (c) 2012 Vojtech Horky
   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  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @addtogroup logger
  30  * @{
  31  */
  32 /** @file Common logger service definitions.
  33  */
  34
  35 #ifndef LOGGER_H_
  36 #define LOGGER_H_
  37
  38 #include <adt/list.h>
  39 #include <adt/prodcons.h>
  40 #include <io/log.h>
  41 #include <bool.h>
  42 #include <fibril_synch.h>
  43
  44 #define NAME "logger"
  45 #define MAX_NAMESPACE_LENGTH 256
  46 #define LOG_LEVEL_USE_DEFAULT (LVL_LIMIT + 1)
  47
  48 typedef struct logging_namespace logging_namespace_t;
  49
  50 logging_namespace_t *namespace_create(const char *);
  51 const char *namespace_get_name(logging_namespace_t *);
  52 void namespace_destroy(logging_namespace_t *);
  53 logging_namespace_t *namespace_writer_attach(const char *);
  54 void namespace_writer_detach(logging_namespace_t *);
  55
  56 int namespace_change_level(logging_namespace_t *, log_level_t);
  57
  58 void namespace_wait_for_reader_change(logging_namespace_t *, bool *);
  59 bool namespace_has_reader(logging_namespace_t *, sysarg_t, log_level_t);
  60 void namespace_add_message(logging_namespace_t *, const char *, sysarg_t, log_level_t);
  61
  62 int namespace_create_context(logging_namespace_t *, const char *);
  63 int namespace_change_context_level(logging_namespace_t *, const char *, log_level_t);
  64
  65 log_level_t get_default_logging_level(void);
  66 int set_default_logging_level(log_level_t);
  67
  68 #endif
  69
  70 /** @}
  71  */