/**
* Initializes the critical section.
* @param int $afterForkPid The process identifier obtained after the execution of a fork() used to differentiate between different processes - pseudo threads.
* @param int $threadId The internal to the GPhpThread identifier of the current thread instance which is unique identifier in the context of the current process.
* @return bool On success returns true otherwise false.
*/
public function initialize($afterForkPid, $threadId)
{
// {{{
$this->myPid = getmypid();
$retriesLimit = 60;
if ($this->myPid == $this->creatorPid) {
// parent
$i = 0;
do {
$intercomWrite = new GPhpThreadIntercom("{$this->pipeDir}gphpthread_{$this->uniqueId}_s{$this->myPid}-d{$afterForkPid}", false, true);
if ($intercomWrite->isInitialized()) {
$i = $retriesLimit;
} else {
++$i;
usleep(mt_rand(5000, 80000));
}
} while ($i < $retriesLimit);
$i = 0;
do {
$intercomRead = new GPhpThreadIntercom("{$this->pipeDir}gphpthread_{$this->uniqueId}_s{$afterForkPid}-d{$this->myPid}", true, true);
if ($intercomRead->isInitialized()) {
$i = $retriesLimit;
} else {
++$i;
usleep(mt_rand(5000, 80000));
}
} while ($i < $retriesLimit);
if ($intercomWrite->isInitialized() && $intercomRead->isInitialized()) {
$this->mastersThreadSpecificData[$threadId] = array('intercomRead' => $intercomRead, 'intercomWrite' => $intercomWrite, 'intercomInterlocutorPid' => $afterForkPid, 'dispatchPriority' => 0);
return true;
}
return false;
} else {
// child
self::$instancesCreatedEverAArr = null;
// the child must not know for its neighbours
$this->mastersThreadSpecificData = null;
// and any details for the threads inside cs instance simulation
self::$threadsForRemovalAArr = null;
// these point to the same memory location and also become
// aliases of each other which is strange?!?
// so we need to recreate them
unset($this->intercomWrite);
unset($this->intercomRead);
unset($this->intercomInterlocutorPid);
$this->intercomWrite = null;
$this->intercomRead = null;
$this->intercomInterlocutorPid = null;
$this->intercomInterlocutorPid = $this->creatorPid;
$i = 0;
do {
$this->intercomWrite = new GPhpThreadIntercom("{$this->pipeDir}gphpthread_{$this->uniqueId}_s{$this->myPid}-d{$this->creatorPid}", false, true);
if ($this->intercomWrite->isInitialized()) {
$i = $retriesLimit;
} else {
++$i;
usleep(mt_rand(5000, 80000));
}
} while ($i < $retriesLimit);
$i = 0;
do {
$this->intercomRead = new GPhpThreadIntercom("{$this->pipeDir}gphpthread_{$this->uniqueId}_s{$this->creatorPid}-d{$this->myPid}", true, false);
if ($this->intercomRead->isInitialized()) {
$i = $retriesLimit;
} else {
++$i;
usleep(mt_rand(5000, 80000));
}
} while ($i < $retriesLimit);
if (!$this->intercomWrite->isInitialized()) {
$this->intercomWrite = null;
}
if (!$this->intercomRead->isInitialized()) {
$this->intercomRead = null;
}
if ($this->intercomWrite == null || $this->intercomRead == null) {
$this->intercomInterlocutorPid = null;
return false;
}
return true;
}
return false;
}
