summaryrefslogtreecommitdiffstats
path: root/src/pulsecore/log.h
blob: 2f379f68864c0558de0055c9f3406fad84853fb1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
#ifndef foologhfoo
#define foologhfoo

/***
  This file is part of PulseAudio.

  Copyright 2004-2006 Lennart Poettering
  Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB

  PulseAudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2.1 of the License,
  or (at your option) any later version.

  PulseAudio is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with PulseAudio; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#include <stdarg.h>
#include <stdlib.h>

#include <pulsecore/macro.h>
#include <pulse/gccmacro.h>

/* A simple logging subsystem */

/* Where to log to */
typedef enum pa_log_target {
    PA_LOG_STDERR,  /* default */
    PA_LOG_SYSLOG,
    PA_LOG_NULL,    /* to /dev/null */
    PA_LOG_TARGET_MAX
} pa_log_target_t;

typedef enum pa_log_level {
    PA_LOG_ERROR  = 0,    /* Error messages */
    PA_LOG_WARN   = 1,    /* Warning messages */
    PA_LOG_NOTICE = 2,    /* Notice messages */
    PA_LOG_INFO   = 3,    /* Info messages */
    PA_LOG_DEBUG  = 4,    /* debug message */
    PA_LOG_LEVEL_MAX
} pa_log_level_t;

typedef enum pa_log_flags {
    PA_LOG_COLORS      = 0x01, /* Show colorful output */
    PA_LOG_PRINT_TIME  = 0x02, /* Show time */
    PA_LOG_PRINT_FILE  = 0x04, /* Show source file */
    PA_LOG_PRINT_META  = 0x08, /* Show extended locaton information */
    PA_LOG_PRINT_LEVEL = 0x10, /* Show log level prefix */
} pa_log_flags_t;

typedef enum pa_log_merge {
    PA_LOG_SET,
    PA_LOG_UNSET,
    PA_LOG_RESET
} pa_log_merge_t;

/* Set an identification for the current daemon. Used when logging to syslog. */
void pa_log_set_ident(const char *p);

/* Set a log target. */
void pa_log_set_target(pa_log_target_t t);

/* Maximal log level */
void pa_log_set_level(pa_log_level_t l);

/* Set flags */
void pa_log_set_flags(pa_log_flags_t flags, pa_log_merge_t merge);

/* Enable backtrace */
void pa_log_set_show_backtrace(unsigned nlevels);

/* Skip the first backtrace frames */
void pa_log_set_skip_backtrace(unsigned nlevels);

void pa_log_level_meta(
        pa_log_level_t level,
        const char*file,
        int line,
        const char *func,
        const char *format, ...) PA_GCC_PRINTF_ATTR(5,6);

void pa_log_levelv_meta(
        pa_log_level_t level,
        const char*file,
        int line,
        const char *func,
        const char *format,
        va_list ap);

void pa_log_level(
        pa_log_level_t level,
        const char *format, ...) PA_GCC_PRINTF_ATTR(2,3);

void pa_log_levelv(
        pa_log_level_t level,
        const char *format,
        va_list ap);

#if __STDC_VERSION__ >= 199901L

/* ISO varargs available */

#define pa_log_debug(...)  pa_log_level_meta(PA_LOG_DEBUG,  __FILE__, __LINE__, __func__, __VA_ARGS__)
#define pa_log_info(...)   pa_log_level_meta(PA_LOG_INFO,   __FILE__, __LINE__, __func__, __VA_ARGS__)
#define pa_log_notice(...) pa_log_level_meta(PA_LOG_NOTICE, __FILE__, __LINE__, __func__, __VA_ARGS__)
#define pa_log_warn(...)   pa_log_level_meta(PA_LOG_WARN,   __FILE__, __LINE__, __func__, __VA_ARGS__)
#define pa_log_error(...)  pa_log_level_meta(PA_LOG_ERROR,  __FILE__, __LINE__, __func__, __VA_ARGS__)
#define pa_logl(level, ...)  pa_log_level_meta(level,  __FILE__, __LINE__, __func__, __VA_ARGS__)

#else

#define LOG_FUNC(suffix, level) \
PA_GCC_UNUSED static void pa_log_##suffix(const char *format, ...) { \
    va_list ap; \
    va_start(ap, format); \
    pa_log_levelv_meta(level, NULL, 0, NULL, format, ap); \
    va_end(ap); \
}

LOG_FUNC(debug, PA_LOG_DEBUG)
LOG_FUNC(info, PA_LOG_INFO)
LOG_FUNC(notice, PA_LOG_NOTICE)
LOG_FUNC(warn, PA_LOG_WARN)
LOG_FUNC(error, PA_LOG_ERROR)

#endif

#define pa_log pa_log_error

pa_bool_t pa_log_ratelimit(void);

#endif