pcntl_sigprocmask(3) [php man page]

PCNTL_SIGPROCMASK(3)							 1						      PCNTL_SIGPROCMASK(3)

pcntl_sigprocmask - Sets and retrieves blocked signals

SYNOPSIS

       bool pcntl_sigprocmask (int  $how, array  $set, [array  &$oldset])

DESCRIPTION

	The pcntl_sigprocmask(3) function adds, removes or sets blocked signals, depending on the $how parameter.

PARAMETERS

	      o $how
		- Sets the behavior of pcntl_sigprocmask(3). Possible values:

		     o SIG_BLOCK: Add the signals to the currently blocked signals.

		     o SIG_UNBLOCK: Remove the signals from the currently blocked signals.

		     o SIG_SETMASK: Replace the currently blocked signals by the given list of signals.

	      o $set
		- List of signals.

	      o $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(3) example

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

SEE ALSO

       pcntl_sigwaitinfo(3), pcntl_sigtimedwait(3).

PHP Documentation Group 												      PCNTL_SIGPROCMASK(3)

PCNTL_SIGWAITINFO(3)							 1						      PCNTL_SIGWAITINFO(3)

pcntl_sigwaitinfo - Waits for signals

SYNOPSIS

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

DESCRIPTION

	The pcntl_sigwaitinfo(3) 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(3)), pcntl_sigwaitinfo(3) will return immediately.

PARAMETERS

	      o $set
		- Array of signals to wait for.

	      o $siginfo
		- The $siginfo parameter is set to an array containing informations about the signal.  The following elements are set for all sig-
		nals:

		     osigno: Signal number

		     oerrno: An error number

		     ocode: Signal code

	       The following elements may be set for the SIGCHLD signal:

		     ostatus: Exit value or signal

		     outime: User time consumed

		     ostime: System time consumed

		     opid: Sending process ID

		     ouid: Real user ID of sending process

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

		     oaddr: Memory location which caused fault

	       The following element may be set for the SIGPOLL signal:

		     oband: Band event

		     ofd: File descriptor number

RETURN VALUES

	On success, pcntl_sigwaitinfo(3) returns a signal number.

EXAMPLES

       Example #1

	      pcntl_sigwaitinfo(3) example

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

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

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

SEE ALSO

       pcntl_sigprocmask(3), pcntl_sigtimedwait(3).

PHP Documentation Group 												      PCNTL_SIGWAITINFO(3)