PHP-Handbuch: Waits for signals

Beschreibung

int pcntl_sigwaitinfo ( array $set [, array &$siginfo ] )

The pcntl_sigwaitinfo function suspends execution of the calling script until one of the signals given in set are delivered. If one of the signal is already pending (e.g. blocked by pcntl_sigprocmask), pcntl_sigwaitinfo will return immediately.

Parameter-Liste

set

Array of signals to wait for.

siginfo

The siginfo parameter is set to an array containing informations about the signal.

The following elements are set for all signals:

signo: Signal number
errno: An error number
code: Signal code

The following elements may be set for the SIGCHLD signal:

status: Exit value or signal
utime: User time consumed
stime: System time consumed
pid: Sending process ID
uid: Real user ID of sending process

The following elements may be set for the SIGILL, SIGFPE, SIGSEGV and SIGBUS signals:

addr: Memory location which caused fault

The following element may be set for the SIGPOLL signal:

band: Band event
fd: File descriptor number

Rückgabewerte

On success, pcntl_sigwaitinfo returns a signal number.

Beispiele

Beispiel #1 pcntl_sigwaitinfo example


<?php
echo "Blocking SIGHUP signal\n";
pcntl_sigprocmask(SIG_BLOCK, array(SIGHUP));

echo "Sending SIGHUP to self\n";
posix_kill(posix_getpid(), SIGHUP);

echo "Waiting for signals\n";
$info = array();
pcntl_sigwaitinfo(array(SIGHUP), $info);
?>

Siehe auch

pcntl_sigprocmask
pcntl_sigtimedwait