Logging

Macros
#define	di_error(format...)   di_log (DI_LOG_LEVEL_ERROR, format)
#define	di_warning(format...)   di_log (DI_LOG_LEVEL_WARNING, format)
#define	di_info(format...)   di_log (DI_LOG_LEVEL_INFO, format)
#define	di_debug(format...)   di_log (DI_LOG_LEVEL_DEBUG, format)

Typedefs
typedef void	di_log_handler (di_log_level_flags log_level, const char *message, void *user_data)

Enumerations
enum	di_log_level_flags {   DI_LOG_FLAG_FATAL = 1 << 1, DI_LOG_LEVEL_ERROR = 1 << 2, DI_LOG_LEVEL_CRITICAL = 1 << 3, DI_LOG_LEVEL_WARNING = 1 << 4,   DI_LOG_LEVEL_MESSAGE = 1 << 5, DI_LOG_LEVEL_INFO = 1 << 6, DI_LOG_LEVEL_DEBUG = 1 << 7, DI_LOG_LEVEL_OUTPUT = 1 << 8,   DI_LOG_LEVEL_MASK = ~DI_LOG_FLAG_FATAL, DI_LOG_FATAL_MASK = DI_LOG_LEVEL_ERROR }
	Log levels and other flags. More...

Functions
void	di_log (di_log_level_flags log_level, const char *format,...) __attribute__((format(printf
void void	di_vlog (di_log_level_flags log_level, const char *format, va_list args)
unsigned int	di_log_set_handler (di_log_level_flags log_levels, di_log_handler *log_func, void *user_data)

Variables
di_log_handler	di_log_handler_default
di_log_handler	di_log_handler_syslog

Detailed Description

Macro Definition Documentation

#define di_debug

(

format...

)

di_log (DI_LOG_LEVEL_DEBUG, format)

logs debug info

#define di_error

(

format...

)

di_log (DI_LOG_LEVEL_ERROR, format)

logs an error

Referenced by di_malloc(), di_malloc0(), and di_realloc().

#define di_info

(

format...

)

di_log (DI_LOG_LEVEL_INFO, format)

logs information

#define di_warning

(

format...

)

di_log (DI_LOG_LEVEL_WARNING, format)

logs a warning

Referenced by di_parser_rfc822_read().

Enumeration Type Documentation

enum di_log_level_flags

Log levels and other flags.

Enumerator:

DI_LOG_FLAG_FATAL	flag as fatal
DI_LOG_LEVEL_ERROR	error level, always fatal
DI_LOG_LEVEL_CRITICAL	critical level
DI_LOG_LEVEL_WARNING	warning level
DI_LOG_LEVEL_MESSAGE	message level
DI_LOG_LEVEL_INFO	information level
DI_LOG_LEVEL_DEBUG	debug level
DI_LOG_LEVEL_OUTPUT	command output
DI_LOG_LEVEL_MASK	defines mask for levels
DI_LOG_FATAL_MASK	defines always fatal levels

{
  DI_LOG_FLAG_FATAL             = 1 << 1,       
  DI_LOG_LEVEL_ERROR            = 1 << 2,       
  DI_LOG_LEVEL_CRITICAL         = 1 << 3,       
  DI_LOG_LEVEL_WARNING          = 1 << 4,       
  DI_LOG_LEVEL_MESSAGE          = 1 << 5,       
  DI_LOG_LEVEL_INFO             = 1 << 6,       
  DI_LOG_LEVEL_DEBUG            = 1 << 7,       
  DI_LOG_LEVEL_OUTPUT           = 1 << 8,       
  DI_LOG_LEVEL_MASK             = ~DI_LOG_FLAG_FATAL,   
  DI_LOG_FATAL_MASK             = DI_LOG_LEVEL_ERROR,   
}

Function Documentation

void di_log	(	di_log_level_flags	log_level,
		const char *	format,
			...
	)

Logs the resolved formatstring with log_level

Parameters

log_level	the level of the message
format	printf compatible format

unsigned int di_log_set_handler	(	di_log_level_flags	log_levels,
		di_log_handler *	log_func,
		void *	user_data
	)

Sets a log handler

Parameters

log_levels	levels
log_func	the log handler
user_data	data for log_func

References di_new, di_slist_append(), di_log_handler_struct::id, di_log_handler_struct::log_func, di_log_handler_struct::log_level, and di_log_handler_struct::user_data.

Referenced by di_system_init().

{
  static unsigned int handler_id = 0;
  di_log_handler_struct *handler;

  handler = di_new (di_log_handler_struct, 1);

  handler->id = ++handler_id;
  handler->log_level = log_levels;
  handler->log_func = log_func;
  handler->user_data = user_data;

  di_slist_append (&handlers, handler);

  return handler_id;
}

void void di_vlog	(	di_log_level_flags	log_level,
		const char *	format,
		va_list	args
	)

Logs the resolved formatstring with log_level

Parameters

log_level	the level of the message
format	printf compatible format
args	variable arguments list

References DI_LOG_FATAL_MASK.

{
  char buf[1024];
  int fatal = log_level & DI_LOG_FATAL_MASK;
  di_log_handler *log_func;
  void *user_data=0;

  vsnprintf (buf, sizeof (buf), format, args);

  log_func = internal_di_log_get_handler (log_level, &user_data);

  log_func (log_level, buf, user_data);

  if (fatal)
    exit (1);
}

Variable Documentation

di_log_handler di_log_handler_default

Default log handler. Logs to STDOUT and STDERR.

di_log_handler di_log_handler_syslog

SYSLOG log handler. Logs to SYSLOG.

Referenced by di_system_init().