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pcntl_sigprocmask

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

pcntl_sigprocmask — Sets and retrieves blocked signals

Опис

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.

Параметри

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.

Значення, що повертаються

Повертає true у разі успіху або false в разі помилки.

Журнал змін

Версія Опис
8.4.0 A ValueError is thrown if signal is empty.
8.4.0 A TypeError is thrown if signal value is not an int.
8.4.0 A ValueError is thrown if signal value is invalid.
8.4.0 A ValueError is thrown if mode value is not SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK.

Приклади

Приклад #1 pcntl_sigprocmask() example

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

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