PCNTL_SIGPROCMASK(3)							 1						      PCNTL_SIGPROCMASK(3)

pcntl_sigprocmask - Sets and retrieves blocked signals

SYNOPSIS
bool pcntl_sigprocmask (int $how, array $set, [array &$oldset]) DESCRIPTION
The pcntl_sigprocmask(3) function adds, removes or sets blocked signals, depending on the $how parameter. PARAMETERS
o $how - Sets the behavior of pcntl_sigprocmask(3). Possible values: o SIG_BLOCK: Add the signals to the currently blocked signals. o SIG_UNBLOCK: Remove the signals from the currently blocked signals. o SIG_SETMASK: Replace the currently blocked signals by the given list of signals. o $set - List of signals. o $oldset - The $oldset parameter is set to an array containing the list of the previously blocked signals. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 pcntl_sigprocmask(3) example <?php pcntl_sigprocmask(SIG_BLOCK, array(SIGHUP)); $oldset = array(); pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset); ?> SEE ALSO
pcntl_sigwaitinfo(3), pcntl_sigtimedwait(3). PHP Documentation Group PCNTL_SIGPROCMASK(3)