sigfn.h File Reference

SigFn C interface. More...

#include <stdlib.h>
#include <signal.h>

Go to the source code of this file.

Macros
#define	SIGFN_SUCCESS   0
#define	SIGFN_INVALID_SIGNUM   1
#define	SIGFN_INVALID_HANDLER   2
#define	DLL_EXPORT

Typedefs
typedef void(*	sigfn_handler_func) (int signum, void *userdata)
	signal handler function type

Functions
DLL_EXPORT int	sigfn_handle (int signum, sigfn_handler_func handler, void *userdata)
	attach handler to specific signal
DLL_EXPORT int	sigfn_ignore (int signum)
	ignore a specific signal
DLL_EXPORT int	sigfn_reset (int signum)
	reset a specific signal to its default behavior

Detailed Description

SigFn C interface.

Author

John R. Patek Sr.

Macro Definition Documentation

DLL_EXPORT

#define DLL_EXPORT

SIGFN_INVALID_HANDLER

#define SIGFN_INVALID_HANDLER   2

SIGFN_INVALID_SIGNUM

#define SIGFN_INVALID_SIGNUM   1

SIGFN_SUCCESS

#define SIGFN_SUCCESS   0

Typedef Documentation

sigfn_handler_func

typedef void(* sigfn_handler_func) (int signum, void *userdata)

signal handler function type

Parameters

signum	signal number
userdata	pointer to user defined data, can be NULL

Function Documentation

sigfn_handle()

DLL_EXPORT int sigfn_handle	(	int	signum,
		sigfn_handler_func	handler,
		void *	userdata )

attach handler to specific signal

Parameters

signum	signal to be handled
handler	function associated with this signal
userdata	optional user data passed to the function

Returns

0 on success, non-zero on error

sigfn_ignore()

DLL_EXPORT int sigfn_ignore

(

int

signum

)

ignore a specific signal

Parameters

signum

signal to ignore

Returns

0 on success, non-zero on error

sigfn_reset()

DLL_EXPORT int sigfn_reset

(

int

signum

)

reset a specific signal to its default behavior

Parameters

signum

signal to reset

Returns

0 on success, non-zero on error