POSIX Signal¶

The POSIX signal handler intercepts process signals.

halmd.utility.posix_signal.on_hup(slot)¶

Connect slot to invoke on signal HUP.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_int(slot)¶

Connect slot to invoke on signal INT.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_alrm(slot)¶

Connect slot to invoke on signal ALRM.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_term(slot)¶

Connect slot to invoke on signal TERM.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_usr1(slot)¶

Connect slot to invoke on signal USR1.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_usr2(slot)¶

Connect slot to invoke on signal USR2.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_cont(slot)¶

Connect slot to invoke on signal CONT.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_tstp(slot)¶

Connect slot to invoke on signal TSTP.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_ttin(slot)¶

Connect slot to invoke on signal TTIN.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.on_ttou(slot)¶

Connect slot to invoke on signal TTOU.

Parameters:	slot – unary slot that accepts signal number
Returns:	connection

halmd.utility.posix_signal.wait()¶: Block process until signal is received.

halmd.utility.posix_signal.poll()¶: Poll signal queue, and returns true if signal was handled.