13function sem_get(
int $key,
int $max_acquire = 1,
int $permissions = 0666,
bool $auto_release =
true):
SysvSemaphore|false {}
sem_release(SysvSemaphore $semaphore)
sem_get(int $key, int $max_acquire=1, int $permissions=0666, bool $auto_release=true)
sem_remove(SysvSemaphore $semaphore)
sem_acquire(SysvSemaphore $semaphore, bool $non_blocking=false)
function(EX_VAR(opline->result.var))