Defines | |
#define | u_log_die(ecode, facility, flags, err,) |
log an error message and die | |
#define | u_log_emerg(facility, flags, err,) u_log_write(facility, LOG_EMERG, flags, err, __VA_ARGS__) |
log an emerg message | |
#define | u_log_alert(facility, flags, err,) u_log_write(facility, LOG_ALERT, flags, err, __VA_ARGS__) |
log an alert message | |
#define | u_log_critical(facility, flags, err,) u_log_write(facility, LOG_CRIT, flags, err, __VA_ARGS__) |
log a critical message | |
#define | u_log_error(facility, flags, err,) u_log_write(facility, LOG_ERR, flags, err, __VA_ARGS__) |
log an error message | |
#define | u_log_warning(facility, flags, err,) u_log_write(facility, LOG_WARNING, flags, err, __VA_ARGS__) |
log a warning message | |
#define | u_log_notice(facility, flags, err,) u_log_write(facility, LOG_NOTICE, flags, err, __VA_ARGS__) |
log a notice message | |
#define | u_log_info(facility, flags, err,) u_log_write(facility, LOG_INFO, flags, err, __VA_ARGS__) |
log an informational message | |
#define | u_log_debug(facility, flags, err,) u_log_write(facility, LOG_DEBUG, flags, err, __VA_ARGS__) |
log a debug message | |
#define | die(ecode,) u_log_die(ecode, facility, 1, 0, __VA_ARGS__) |
same as u_log_die but using the facility global variable | |
#define | die_if(expr) if(expr) die(EXIT_FAILURE, #expr) |
calls die() if expr is true | |
#define | emerg_(err,) u_log_emerg(facility, 1, err, __VA_ARGS__) |
same as u_log_emerg but using the facility global variable | |
#define | alert_(err,) u_log_alert(facility, 1, err, __VA_ARGS__) |
same as u_log_alert but using the facility global variable | |
#define | crit_(err,) u_log_critical(facility, 1, err, __VA_ARGS__) |
same as u_log_critical but using the facility global variable | |
#define | err_(err,) u_log_error(facility, 1, err, __VA_ARGS__) |
same as u_log_error but using the facility global variable | |
#define | warn_(err,) u_log_warning(facility, 1, err, __VA_ARGS__) |
same as u_log_warning but using the facility global variable | |
#define | notice_(err,) u_log_notice(facility, 1, err, __VA_ARGS__) |
same as u_log_info but using the facility global variable | |
#define | info_(err,) u_log_info(facility, 0, err, __VA_ARGS__) |
same as u_log_info but using the facility global variable | |
#define | dbg_(err,) u_log_debug(facility, 1, err, __VA_ARGS__) |
same as u_log_debug but using the facility global variable | |
#define | con_(err,) u_console_write( err, __VA_ARGS__) |
write a log message to stderr | |
Typedefs | |
typedef int(* | u_log_hook_t )(void *arg, int level, const char *str) |
log hook typedef | |
Enumerations | |
enum | |
Functions | |
int | u_log_set_hook (u_log_hook_t hook, void *arg, u_log_hook_t *old, void **parg) |
set a log hook to redirect log messages | |
int | u_strerror_r (int err, char *buf, size_t size) |
Return, in the given buffer, a string describing the error code. | |
Variables | |
int | facility |
per-process facility variable. |
facility:
logging facility (see syslog(3)) flags:
OR-ed LOG_WRITE_FLAG_* flags args:
printf-style variable argument lists expr:
C expression to evaluate err:
function return code gt:
goto label ecode:
process exit code
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Write an alert log message.
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Write a critical log message.
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Write a debug log message.
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Value: do { \ u_log_write(facility, LOG_CRIT, flags, err, __VA_ARGS__); \ exit(ecode); \ } while(0)
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Write an emerg log message.
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Write an error log message.
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Write an informational log message.
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Write a notice log message.
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Write a warning log message.
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Force the log subsystem to use user-provided function to write log messages. The provided function will be called for each dbg_, warn_ or info_ calls.
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Return in 'msg' a string describing the error code. Works equally with POSIX-style C libs and with glibc (that use a different prototype for strerror_r). If strerror_r doesn't exist in the system strerror() is used instead.
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all processes that use the libu must define a "facility" variable somewhere to satisfy this external linkage reference. Such variable will be used as the syslog(3) facility argument. |