POSIX signals support for agents.

Registering and unregistering signal handlers. More...

Functions
RETSIGTYPE	agent_SIGCHLD_handler (int sig)
int	register_signal (int sig, void(*func)(int))
	Registers a POSIX Signal handler.
int	unregister_signal (int sig)
	Unregisters a POSIX Signal handler.
Variables
int	external_signal_scheduled [NUM_EXTERNAL_SIGS]
void(*	external_signal_handler [NUM_EXTERNAL_SIGS])(int)

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Detailed Description

Registering and unregistering signal handlers.

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Function Documentation

int register_signal	(	int	sig,
		void(*)(int)	func
	)

Registers a POSIX Signal handler.

Implements the signal registering process for POSIX and non-POSIX systems. Also, unifies the way signals work. Note that the signal handler should register itself again with signal() call before end of execution to prevent possible problems.

Parameters:

sig	POSIX Signal ID number, as defined in signal.h.
func	New signal handler function.

Returns:

value is SIG_REGISTERED_OK for success and SIG_REGISTRATION_FAILED if the registration can't be handled.

Definition at line 2353 of file agent_registry.c.

int unregister_signal

(

int

sig

)

Unregisters a POSIX Signal handler.

Parameters:

sig	POSIX Signal ID number, as defined in signal.h.

Returns:

value is SIG_UNREGISTERED_OK for success, or error code.

Definition at line 2392 of file agent_registry.c.