/**
* Initialize a semaphore that can be handled by the
* functions provided by this class.
* @throws ParamNotValidException
* @return true if loading the semaphore was successful
*/
public function load($sem = null)
{
if (strncmp(gettype($sem), "object", 6) == 0 && strncmp(get_class($sem), "core\\control\\Semaphore", strlen(get_class($sem))) == 0) {
$this->semaphore = $sem;
$this->semaphore->create();
return true;
} else {
$this->log(__METHOD__ . ": %", array(new ParamNotValidException("sem(core\\control\\Semaphore)=" . StringUtil::get_object_value($sem))));
throw new ParamNotValidException("sem(core\\control\\Semaphore)=" . StringUtil::get_object_value($sem));
}
}
/**
* Pin a semaphore onto this shared memory segment to protect
* write access.
* @param $sem a valid semaphore
* @throws ParamNotValidException
* @see Semaphore
* @see SharedMemoryHandler
*/
public function set_shm_seg_sem_write($sem = null)
{
if (strncmp(gettype($sem), "object", 6) == 0 && strncmp(get_class($sem), "core\\control\\Semaphore", 22) == 0) {
$this->shm_seg_sem_write = $sem;
} else {
$this->shm_seg_sem_write = null;
//throw ParamNotValidException
$this->log(__METHOD__ . ": %", array(new ParamNotValidException("sem(core\\control\\Semaphore)=" . StringUtil::get_object_value($sem))));
throw new ParamNotValidException("sem(core\\control\\Semaphore)=" . StringUtil::get_object_value($sem));
}
}
