public class CountingSemaphore
extends java.lang.Object
| Constructor and Description |
|---|
CountingSemaphore(int permits)
Construct a new semaphpore with the specified number of
permits. |
| Modifier and Type | Method and Description |
|---|---|
void |
acquire()
Acquire the semaphore, blocking if needed until a permit is available.
|
void |
release()
Release the semaphore which was acquired by the current thread using
CountingSemaphore.acquire or CountingSemaphore.tryAcquire. |
boolean |
tryAcquire(int timeout)
Return
true if the semaphore was acquired without blocking for longer than timeout milliseconds, otherwise false (in which case the semaphore was not acquired). |
public CountingSemaphore(int permits)
Construct a new semaphpore with the specified number of permits.
permits - Number of permits.public void acquire()
Acquire the semaphore, blocking if needed until a permit is available.
public void release()
Release the semaphore which was acquired by the current thread using CountingSemaphore.acquire or CountingSemaphore.tryAcquire.
public boolean tryAcquire(int timeout)
Return true if the semaphore was acquired without blocking for longer than timeout milliseconds, otherwise false (in which case the semaphore was not acquired).
timeout - Timeout in milliseconds.true if the semaphore was acquired without blocking for longer than timeout milliseconds, otherwise false (in which case the semaphore was not acquired).