Examples of org.menagerie.latches.spi.ZkSemaphore.release()

Class org.menagerie.latches.spi.ZkSemaphore

Examples of org.menagerie.latches.spi.ZkSemaphore.release()

org.menagerie.latches.spi.ZkSemaphore.release()
Releases a permit, returning it to the semaphore.
Releases a permit, increasing the semaphore's available permits by one. If any parties are waiting to acquire a permit, then the party which has been waiting the longest is selected and given this permit.
There is not requirement that a party that releases a permit must have first acquired that permit by calling {@link #acquire()}. This allows parties which have not acquired a specific permit to release a specific permit. However, calling this method without having acquired a permit previously may have dangerous consequences, and is discouraged.


        semaphore.acquire();


        //check that the available permits are zero
        assertEquals("semaphore does not report fewer permits!",numPermits-1,semaphore.availablePermits());
        semaphore.release();
        assertEquals("semaphore does not report releasing a permit!",numPermits,semaphore.availablePermits());
    }


    @Test(timeout = 1000l)
    public void testTwoThreadsCanAccessSempahore() throws Exception{

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        });


        boolean timedOut = !latch.await(500, TimeUnit.MILLISECONDS);
        assertTrue("Semaphore improperly acquired a permit!",timedOut);


        semaphore.release();
        boolean noTimeOut = latch.await(500, TimeUnit.MILLISECONDS);
        assertTrue("Semaphore did not release a permit for another party!",noTimeOut);
        errorFuture.get();
    }

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        DistributedSemaphore semaphore = new ZkSemaphore(2,basePath,zkSessionManager);


        semaphore.acquire(2);
        assertEquals("Incorrect number of permits reported!",0,semaphore.availablePermits());


        semaphore.release();
        assertEquals("Incorrect number of permits reported",1,semaphore.availablePermits());


        semaphore.release();
        assertEquals("Incorrect number of permits reported",2,semaphore.availablePermits());
    }

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        assertEquals("Incorrect number of permits reported!",0,semaphore.availablePermits());


        semaphore.release();
        assertEquals("Incorrect number of permits reported",1,semaphore.availablePermits());


        semaphore.release();
        assertEquals("Incorrect number of permits reported",2,semaphore.availablePermits());
    }


    @Test(timeout = 2000l)
    public void testAcquireMultiplePermitsBlocksUntilAvailableTwoThreads() throws Exception{

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            }
        });


        boolean timedOut1 = !latch.await(500, TimeUnit.MILLISECONDS);
        assertTrue("multiple permits were incorrectly acquired",timedOut1);
        semaphore.release();


        boolean timedOut2 = !latch.await(500, TimeUnit.MILLISECONDS);
        assertTrue("multiple permits were incorrectly acquired",timedOut2);


        semaphore.release();

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        semaphore.release();


        boolean timedOut2 = !latch.await(500, TimeUnit.MILLISECONDS);
        assertTrue("multiple permits were incorrectly acquired",timedOut2);


        semaphore.release();
        boolean timedOut3 = latch.await(500,TimeUnit.MILLISECONDS);
        assertTrue("multiple permits were incorrectly released",timedOut3);
        errorFuture.get();
    }

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        semaphore.acquire();
        semaphore.acquire();
        assertEquals("Incorrect number of permits reported!",0,semaphore.availablePermits());


        semaphore.release(2);
        assertEquals("Incorrect number of permits reported",2,semaphore.availablePermits());
    }


    @Test(timeout = 1000l)
    public void testTryAcquire() throws Exception{

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