source: mainline/uspace/srv/logger/logger.h@ 01b8c2e4

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 01b8c2e4 was 2e39656, checked in by Vojtech Horky <vojtechhorky@…>, 13 years ago

Check for log readers in separate fibril

Do not even try to send when no reader was announced.

  • Property mode set to 100644
File size: 2.6 KB
Line 
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 DEFAULT_LOGGING_LEVEL LVL_WARN
45
46#define NAME "logger"
47#define MAX_NAMESPACE_LENGTH 256
48
49typedef struct {
50 link_t link;
51 log_level_t level;
52 const char *message;
53} log_message_t;
54
55typedef struct logging_namespace logging_namespace_t;
56
57log_message_t *message_create(const char *, log_level_t);
58void message_destroy(log_message_t *);
59
60logging_namespace_t *namespace_create(const char *);
61const char *namespace_get_name(logging_namespace_t *);
62void namespace_destroy(logging_namespace_t *);
63logging_namespace_t *namespace_reader_attach(const char *);
64logging_namespace_t *namespace_writer_attach(const char *);
65void namespace_reader_detach(logging_namespace_t *);
66void namespace_writer_detach(logging_namespace_t *);
67
68void namespace_wait_for_reader_change(logging_namespace_t *, bool *);
69bool namespace_has_reader(logging_namespace_t *);
70void namespace_add_message(logging_namespace_t *, const char *, log_level_t);
71log_message_t *namespace_get_next_message(logging_namespace_t *);
72
73#endif
74
75/** @}
76 */
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