NAME¶

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

SYNOPSIS¶

Functions¶

int daemon_signal_init (int s,...) Installs signal handlers for the specified signals. int daemon_signal_install (int s) Install a signal handler for the specified signal. void daemon_signal_done (void) Free resources of signal handling, should be called before daemon exit. int daemon_signal_next (void) Return the next signal received. int daemon_signal_fd (void) Return the file descriptor the daemon should select() on for reading.

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 received 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. Examples:
testd.c.

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. Returns: Examples:
testd.c.

int daemon_signal_init (int s, ...)¶

Installs signal handlers for the specified signals. Parameters: Returns: Examples:
testd.c.

int daemon_signal_install (int s)¶

Install a signal handler for the specified signal. Parameters: Returns:

int daemon_signal_next (void)¶

Return the next signal received. This function will not block. Instead it returns 0 if no signal is queued. Returns: Examples:
testd.c.

Author¶

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