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pcntl_sigprocmask

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

pcntl_sigprocmaskSets and retrieves blocked signals

Descrição

pcntl_sigprocmask(int $mode, array $signals, array &$old_signals = null): bool

The pcntl_sigprocmask() function adds, removes or sets blocked signals, depending on the mode parameter.

Parâmetros

mode

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.

signals

List of signals.

old_signals

The old_signals parameter is set to an array containing the list of the previously blocked signals.

Valor Retornado

Retorna true em caso de sucesso ou false em caso de falha.

Exemplos

Exemplo #1 pcntl_sigprocmask() example

<?php
pcntl_sigprocmask
(SIG_BLOCK, array(SIGHUP));
$oldset = array();
pcntl_sigprocmask(SIG_UNBLOCK, array(SIGHUP), $oldset);
?>

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