pcntl_sigprocmask
(PHP 5 >= 5.3.0, PHP 7)
pcntl_sigprocmask — Sets and retrieves blocked signals
Description
bool pcntl_sigprocmask ( int $how , array $set [, array &$oldset ] ) The pcntl_sigprocmask() function adds, removes or sets blocked signals, depending on the how parameter.
Parameters
how
Sets the behavior of pcntl_sigprocmask(). Possible values:
SIG_BLOCK: Add the signals to the currently blocked signals.
SIG_UNBLOCK: Remove the signals from the currently blocked signals.
SIG_SETMASK: Replace the currently blocked signals by the given list of signals.
set
List of signals.
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() example
<?php
pcntl_sigprocmask(SIG_BLOCK, array(SIGHUP));
$oldset = array();
pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);
?>See Also
- pcntl_sigwaitinfo() - Waits for signals
- pcntl_sigtimedwait() - Waits for signals, with a timeout
← pcntl_signal
pcntl_sigtimedwait →
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