pcntl_sigprocmask
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
oldsetparameter 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
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.pcntl-sigprocmask.php
