(PECL pthreads >= 0.34)
Cond::wait — Wait for Condition
$condition
,
long
$mutex
[,
long
$timeout
] )Wait for a signal on a Condition Variable, optionally specifying a timeout to limit waiting time.
condition
A handle returned by a previous call to Cond::create().
mutex
A handle returned by a previous call to Mutex::create() and owned (locked) by the caller.
timeout
An optional timeout, in microseconds ( millionths of a second ).
A boolean indication of success.
Example #1 Waiting for Conditions
<?php
/** PLEASE NOTE THIS EXAMPLE WILL CAUSE THE PROCESS TO HANG **/
$mutex = Mutex::create(true);
/** You cannot use the "new" keyword, a Cond is not a PHP object **/
$cond = Cond::create();
/** The caller must lock the associated Mutex before a call to broadcast **/
var_dump(Cond::wait($mutex, $cond));
/** Always destroy Cond you have created **/
Cond::destroy($cond);
Mutex::unlock($mutex);
Mutex::destroy($mutex);
?>
以上例程会输出：
int(49685473)