pcntl_alarm(3) [php man page]

PCNTL_ALARM(3)								 1							    PCNTL_ALARM(3)

pcntl_alarm - Set an alarm clock for delivery of a signal

SYNOPSIS

       int pcntl_alarm (int  $seconds)

DESCRIPTION

	Creates  a  timer that will send a SIGALRM signal to the process after the given number of seconds. Any call to pcntl_alarm(3) will cancel
       any previously set alarm.

PARAMETERS

	      o $seconds
		- The number of seconds to wait. If $seconds is zero, no new alarm is created.

RETURN VALUES

	Returns the time in seconds that any previously scheduled alarm had remaining before it was to be delivered, or 0 if there was	no  previ-
       ously scheduled alarm.

PHP Documentation Group 													    PCNTL_ALARM(3)

ALARM(3)						   BSD Library Functions Manual 						  ALARM(3)

NAME

     alarm -- set signal timer alarm

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <unistd.h>

     unsigned int
     alarm(unsigned int seconds);

DESCRIPTION

     This interface is made obsolete by setitimer(2).

     The alarm() function sets a timer to deliver the signal SIGALRM to the calling process after the specified number of seconds.  If an alarm
     has already been set with alarm() but has not been delivered, another call to alarm() will supersede the prior call.  The request alarm(0)
     voids the current alarm and the signal SIGALRM will not be delivered.

     Due to setitimer(2) restriction the maximum number of seconds allowed is 100000000.

RETURN VALUES

     The return value of alarm() is the amount of time left on the timer from a previous call to alarm().  If no alarm is currently set, the
     return value is 0.

SEE ALSO

     setitimer(2), sigaction(2), sigsuspend(2), signal(3), sleep(3), ualarm(3), usleep(3)

HISTORY

     An alarm() function appeared in Version 7 AT&T UNIX.

BSD
								  April 19, 1994							       BSD