Examples of availableMemory()

Examples of org.apache.kafka.clients.producer.internals.BufferPool.availableMemory()

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        int size = 1024;
        BufferPool pool = new BufferPool(totalMemory, size, false, metrics, time);
        ByteBuffer buffer = pool.allocate(size);
        assertEquals("Buffer size should equal requested size.", size, buffer.limit());
        assertEquals("Unallocated memory should have shrunk", totalMemory - size, pool.unallocatedMemory());
        assertEquals("Available memory should have shrunk", totalMemory - size, pool.availableMemory());
        buffer.putInt(1);
        buffer.flip();
        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("But now some is on the free list", totalMemory - size, pool.unallocatedMemory());
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Examples of org.apache.kafka.clients.producer.internals.BufferPool.availableMemory()

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        assertEquals("Unallocated memory should have shrunk", totalMemory - size, pool.unallocatedMemory());
        assertEquals("Available memory should have shrunk", totalMemory - size, pool.availableMemory());
        buffer.putInt(1);
        buffer.flip();
        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("But now some is on the free list", totalMemory - size, pool.unallocatedMemory());
        buffer = pool.allocate(size);
        assertEquals("Recycled buffer should be cleared.", 0, buffer.position());
        assertEquals("Recycled buffer should be cleared.", buffer.capacity(), buffer.limit());
        pool.deallocate(buffer);
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Examples of org.apache.kafka.clients.producer.internals.BufferPool.availableMemory()

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        assertEquals("But now some is on the free list", totalMemory - size, pool.unallocatedMemory());
        buffer = pool.allocate(size);
        assertEquals("Recycled buffer should be cleared.", 0, buffer.position());
        assertEquals("Recycled buffer should be cleared.", buffer.capacity(), buffer.limit());
        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("Still a single buffer on the free list", totalMemory - size, pool.unallocatedMemory());
        buffer = pool.allocate(2 * size);
        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("Non-standard size didn't go to the free list.", totalMemory - size, pool.unallocatedMemory());
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Examples of org.apache.kafka.clients.producer.internals.BufferPool.availableMemory()

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        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("Still a single buffer on the free list", totalMemory - size, pool.unallocatedMemory());
        buffer = pool.allocate(2 * size);
        pool.deallocate(buffer);
        assertEquals("All memory should be available", totalMemory, pool.availableMemory());
        assertEquals("Non-standard size didn't go to the free list.", totalMemory - size, pool.unallocatedMemory());
    }

    /**
     * Test that we cannot try to allocate more memory then we have in the whole pool
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Examples of org.apache.kafka.clients.producer.internals.BufferPool.availableMemory()

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            thread.start();
        for (StressTestThread thread : threads)
            thread.join();
        for (StressTestThread thread : threads)
            assertTrue("Thread should have completed all iterations successfully.", thread.success.get());
        assertEquals(totalMemory, pool.availableMemory());
    }

    public static class StressTestThread extends Thread {
        private final int iterations;
        private final BufferPool pool;
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