n_log.c File Reference

generic logging system More...

#include "nilorea/n_common.h"
#include "nilorea/n_log.h"
#include <pthread.h>
#include <string.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <syslog.h>

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Data Structures
struct	LOG_LEVELS
	internal struct to handle log types More...

Functions
void	_n_log (int level, const char *file, const char *func, int line, const char *format,...)
	Logging function.
int	_vscprintf_so (const char *format, va_list pargs)
	compute the size of a string made with format 'fmt' and arguments in the va_list 'ap', helper for vasprintf
int	asprintf (char *strp[], const char *fmt,...)
	snprintf from a va_list
int	close_safe_logging (TS_LOG *log)
	close a thread-safe logging file
void	close_sysjrnl (void)
	Close syslog connection or clean internals for event log.
FILE *	get_log_file (void)
	return the current log_file
int	get_log_level (void)
	Get the global log level value.
int	open_safe_logging (TS_LOG **log, char *pathname, char *opt)
	Open a thread-safe logging file.
char *	open_sysjrnl (char *identity)
	Open connection to syslog or create internals for event log.
int	set_log_file (char *file)
	Set the logging to a file instead of stderr.
void	set_log_level (const int log_level)
	Set the global log level value ( static int LOG_LEVEL )
int	vasprintf (char **strp, const char *fmt, va_list ap)
	snprintf from a va_list, helper for asprintf
int	write_safe_log (TS_LOG *log, char *pat,...)
	write to a thread-safe logging file

Variables
static FILE *	log_file = NULL
	static FILE handling if logging to file is enabled
static int	LOG_LEVEL = -1
	static global maximum wanted log level value
static int	LOG_TYPE = -4
	static global logging type ( STDERR, FILE, SYSJRNL )
static LOG_LEVELS	prioritynames []
	array of log levels
char *	proc_name = NULL
	static proc name, for windows event log

Detailed Description

generic logging system

Author

Castagnier Mickael

Date

2013-03-12

Definition in file n_log.c.

---

Data Structure Documentation

LOG_LEVELS

struct LOG_LEVELS

internal struct to handle log types

Definition at line 24 of file n_log.c.

Collaboration diagram for LOG_LEVELS:

Data Fields
char *	c_name	string of log type
int	c_val	numeric value of log type
char *	w_name	event log value

Function Documentation

_vscprintf_so()

int _vscprintf_so	(	const char *	format,
		va_list	pargs
	)

compute the size of a string made with format 'fmt' and arguments in the va_list 'ap', helper for vasprintf

Parameters

format	format to pass to printf
pargs	va_list to use as printf parameter

Returns

-1 or the size of the string

Definition at line 154 of file n_log.c.

Referenced by vasprintf().

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asprintf()

int asprintf	(	char *	strp[],
		const char *	fmt,
			...
	)

snprintf from a va_list

Parameters

strp	string holding the result
fmt	format to pass to printf
...	list of format parameters

Returns

-1 or the size of the string

Definition at line 196 of file n_log.c.

References vasprintf().

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vasprintf()

int vasprintf	(	char **	strp,
		const char *	fmt,
		va_list	ap
	)

snprintf from a va_list, helper for asprintf

Parameters

strp	string holding the result
fmt	format to pass to printf
ap	va_list to use as printf parameter

Returns

-1 or the size of the string

Definition at line 172 of file n_log.c.

References _vscprintf_so(), and Malloc.

Referenced by _n_log(), _n_nodup_log(), _n_nodup_log_indexed(), and asprintf().

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Variable Documentation

log_file

FILE* log_file = NULL

static

static FILE handling if logging to file is enabled

Examples

ex_fluid.c, ex_gui.c, and ex_gui_particles.c.

Definition at line 54 of file n_log.c.

Referenced by _n_log(), get_log_file(), and set_log_file().

LOG_LEVEL

int LOG_LEVEL = -1

static

static global maximum wanted log level value

Definition at line 48 of file n_log.c.

Referenced by get_log_level(), and set_log_level().

LOG_TYPE

int LOG_TYPE = -4

static

static global logging type ( STDERR, FILE, SYSJRNL )

Definition at line 51 of file n_log.c.

Referenced by _n_log(), and set_log_level().

prioritynames

LOG_LEVELS prioritynames[]

static

Initial value:

=
    {
        {"EMERG",  0 , "ERROR"},
        {"ALERT",  1 , "ERROR"},
        {"CRITICAL",  2 , "ERROR"},
        {"ERR",  3 , "ERROR"},
        {"WARNING",  4 , "WARNING"},
        {"NOTICE",  5 , "SUCCESS"},
        {"INFO",  6 , "INFORMATION"},
        {"DEBUG",  7 , "INFORMATION"},
        {NULL, -1, NULL}}

array of log levels

Definition at line 35 of file n_log.c.

Referenced by _n_log().

proc_name

char* proc_name = NULL

static proc name, for windows event log

Definition at line 57 of file n_log.c.

Referenced by _n_log(), close_sysjrnl(), and open_sysjrnl().