code.delx.au - pulseaudio/blob - src/pulsecore/log.h

   1 #ifndef foologhfoo
   2 #define foologhfoo
   3
   4 /***
   5   This file is part of PulseAudio.
   6
   7   Copyright 2004-2006 Lennart Poettering
   8   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   9
  10   PulseAudio is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU Lesser General Public License as published
  12   by the Free Software Foundation; either version 2.1 of the License,
  13   or (at your option) any later version.
  14
  15   PulseAudio is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with PulseAudio; if not, write to the Free Software
  22   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  23   USA.
  24 ***/
  25
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28
  29 #include <pulsecore/macro.h>
  30 #include <pulse/gccmacro.h>
  31
  32 /* A simple logging subsystem */
  33
  34 /* Where to log to */
  35 typedef enum pa_log_target {
  36     PA_LOG_STDERR,  /* default */
  37     PA_LOG_SYSLOG,
  38     PA_LOG_NULL,    /* to /dev/null */
  39     PA_LOG_TARGET_MAX
  40 } pa_log_target_t;
  41
  42 typedef enum pa_log_level {
  43     PA_LOG_ERROR  = 0,    /* Error messages */
  44     PA_LOG_WARN   = 1,    /* Warning messages */
  45     PA_LOG_NOTICE = 2,    /* Notice messages */
  46     PA_LOG_INFO   = 3,    /* Info messages */
  47     PA_LOG_DEBUG  = 4,    /* debug message */
  48     PA_LOG_LEVEL_MAX
  49 } pa_log_level_t;
  50
  51 typedef enum pa_log_flags {
  52     PA_LOG_COLORS      = 0x01, /* Show colorful output */
  53     PA_LOG_PRINT_TIME  = 0x02, /* Show time */
  54     PA_LOG_PRINT_FILE  = 0x04, /* Show source file */
  55     PA_LOG_PRINT_META  = 0x08, /* Show extended locaton information */
  56     PA_LOG_PRINT_LEVEL = 0x10, /* Show log level prefix */
  57 } pa_log_flags_t;
  58
  59 typedef enum pa_log_merge {
  60     PA_LOG_SET,
  61     PA_LOG_UNSET,
  62     PA_LOG_RESET
  63 } pa_log_merge_t;
  64
  65 /* Set an identification for the current daemon. Used when logging to syslog. */
  66 void pa_log_set_ident(const char *p);
  67
  68 /* Set a log target. */
  69 void pa_log_set_target(pa_log_target_t t);
  70
  71 /* Maximal log level */
  72 void pa_log_set_level(pa_log_level_t l);
  73
  74 /* Set flags */
  75 void pa_log_set_flags(pa_log_flags_t flags, pa_log_merge_t merge);
  76
  77 /* Enable backtrace */
  78 void pa_log_set_show_backtrace(unsigned nlevels);
  79
  80 /* Skip the first backtrace frames */
  81 void pa_log_set_skip_backtrace(unsigned nlevels);
  82
  83 void pa_log_level_meta(
  84         pa_log_level_t level,
  85         const char*file,
  86         int line,
  87         const char *func,
  88         const char *format, ...) PA_GCC_PRINTF_ATTR(5,6);
  89
  90 void pa_log_levelv_meta(
  91         pa_log_level_t level,
  92         const char*file,
  93         int line,
  94         const char *func,
  95         const char *format,
  96         va_list ap);
  97
  98 void pa_log_level(
  99         pa_log_level_t level,
 100         const char *format, ...) PA_GCC_PRINTF_ATTR(2,3);
 101
 102 void pa_log_levelv(
 103         pa_log_level_t level,
 104         const char *format,
 105         va_list ap);
 106
 107 #if __STDC_VERSION__ >= 199901L
 108
 109 /* ISO varargs available */
 110
 111 #define pa_log_debug(...)  pa_log_level_meta(PA_LOG_DEBUG,  __FILE__, __LINE__, __func__, __VA_ARGS__)
 112 #define pa_log_info(...)   pa_log_level_meta(PA_LOG_INFO,   __FILE__, __LINE__, __func__, __VA_ARGS__)
 113 #define pa_log_notice(...) pa_log_level_meta(PA_LOG_NOTICE, __FILE__, __LINE__, __func__, __VA_ARGS__)
 114 #define pa_log_warn(...)   pa_log_level_meta(PA_LOG_WARN,   __FILE__, __LINE__, __func__, __VA_ARGS__)
 115 #define pa_log_error(...)  pa_log_level_meta(PA_LOG_ERROR,  __FILE__, __LINE__, __func__, __VA_ARGS__)
 116 #define pa_logl(level, ...)  pa_log_level_meta(level,  __FILE__, __LINE__, __func__, __VA_ARGS__)
 117
 118 #else
 119
 120 #define LOG_FUNC(suffix, level) \
 121 PA_GCC_UNUSED static void pa_log_##suffix(const char *format, ...) { \
 122     va_list ap; \
 123     va_start(ap, format); \
 124     pa_log_levelv_meta(level, NULL, 0, NULL, format, ap); \
 125     va_end(ap); \
 126 }
 127
 128 LOG_FUNC(debug, PA_LOG_DEBUG)
 129 LOG_FUNC(info, PA_LOG_INFO)
 130 LOG_FUNC(notice, PA_LOG_NOTICE)
 131 LOG_FUNC(warn, PA_LOG_WARN)
 132 LOG_FUNC(error, PA_LOG_ERROR)
 133
 134 #endif
 135
 136 #define pa_log pa_log_error
 137
 138 pa_bool_t pa_log_ratelimit(void);
 139
 140 #endif