Functions
int	daemon_signal_init (int s,...)
	Installs signal handlers for the specified signals. More...

int	daemon_signal_install (int s)
	Install a signal handler for the specified signal. More...

void	daemon_signal_done (void)
	Free resources of signal handling, should be called before daemon exit. More...

int	daemon_signal_next (void)
	Return the next signal recieved. More...

int	daemon_signal_fd (void)
	Return the file descriptor the daemon should select() on for reading. More...

Detailed Description

Contains the API for serializing signals to a pipe for usage with select() or poll().

You should register all signals you wish to handle with select() in your main loop with daemon_signal_init() or daemon_signal_install(). After that you should sleep on the file descriptor returned by daemon_signal_fd() and get the next signal recieved with daemon_signal_next(). You should call daemon_signal_done() before exiting.

Definition in file dsignal.h.

Function Documentation

void daemon_signal_done ( void )

Free resources of signal handling, should be called before daemon exit.

int daemon_signal_fd ( void )

Return the file descriptor the daemon should select() on for reading.

Whenever the descriptor is ready you should call daemon_signal_next() to get the next signal queued.

Installs signal handlers for the specified signals.

Parameters

s,... The signals to install handlers for. The list should be terminated by 0

int daemon_signal_install ( int s )

Install a signal handler for the specified signal.

Parameters

s	The signalto install handler for

int daemon_signal_next ( void )

Return the next signal recieved.

This function will not block. Instead it returns 0 if no signal is queued.

Returns: The next queued signal if one is queued, zero if none is queued, negative on failure.