Examples with RSemaphore org.redisson.api.RSemaphore used on opensource projects

Example 1 with RSemaphore

use of org.redisson.api.RSemaphore in project redisson by redisson.

the class RedissonSemaphoreTest method testAcquireWithoutSetPermits.

@Test
public void testAcquireWithoutSetPermits() throws InterruptedException {
    RSemaphore s = redisson.getSemaphore("test");
    s.release();
    s.release();
    s.acquire(2);
}

Example 2 with RSemaphore

use of org.redisson.api.RSemaphore in project redisson by redisson.

the class RedissonSemaphoreTest method testTrySetPermits.

@Test
public void testTrySetPermits() {
    RSemaphore s = redisson.getSemaphore("test");
    assertThat(s.trySetPermits(10)).isTrue();
    assertThat(s.availablePermits()).isEqualTo(10);
    assertThat(s.trySetPermits(15)).isFalse();
    assertThat(s.availablePermits()).isEqualTo(10);
}

Example 3 with RSemaphore

use of org.redisson.api.RSemaphore in project redisson by redisson.

the class RedissonSemaphoreTest method testConcurrencyLoop_MultiInstance.

@Test
public void testConcurrencyLoop_MultiInstance() throws InterruptedException {
    final int iterations = 100;
    final AtomicInteger lockedCounter = new AtomicInteger();
    RSemaphore s = redisson.getSemaphore("test");
    s.trySetPermits(1);
    testMultiInstanceConcurrency(16, r -> {
        for (int i = 0; i < iterations; i++) {
            try {
                r.getSemaphore("test").acquire();
            } catch (InterruptedException e1) {
                e1.printStackTrace();
            }
            try {
                Thread.sleep(10);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            int value = lockedCounter.get();
            lockedCounter.set(value + 1);
            r.getSemaphore("test").release();
        }
    });
    assertThat(lockedCounter.get()).isEqualTo(16 * iterations);
}

Example 4 with RSemaphore

use of org.redisson.api.RSemaphore in project redisson by redisson.

the class RedissonSemaphoreTest method testBlockingAcquire.

@Test
public void testBlockingAcquire() throws InterruptedException {
    RSemaphore s = redisson.getSemaphore("test");
    s.trySetPermits(1);
    s.acquire();
    Thread t = new Thread() {

        @Override
        public void run() {
            RSemaphore s = redisson.getSemaphore("test");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            s.release();
        }
    };
    t.start();
    assertThat(s.availablePermits()).isEqualTo(0);
    s.acquire();
    assertThat(s.tryAcquire()).isFalse();
    assertThat(s.availablePermits()).isEqualTo(0);
}

Example 5 with RSemaphore

use of org.redisson.api.RSemaphore in project redisson by redisson.

the class RedissonSemaphoreTest method testTryNAcquire.

@Test
public void testTryNAcquire() throws InterruptedException {
    RSemaphore s = redisson.getSemaphore("test");
    s.trySetPermits(5);
    assertThat(s.tryAcquire(3)).isTrue();
    Thread t = new Thread() {

        @Override
        public void run() {
            RSemaphore s = redisson.getSemaphore("test");
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            s.release();
            try {
                Thread.sleep(500);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            s.release();
        }
    };
    assertThat(s.tryAcquire(4)).isFalse();
    t.start();
    t.join(1);
    long startTime = System.currentTimeMillis();
    assertThat(s.tryAcquire(4, 2, TimeUnit.SECONDS)).isTrue();
    assertThat(System.currentTimeMillis() - startTime).isBetween(900L, 1020L);
    assertThat(s.availablePermits()).isEqualTo(0);
}