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useAfterClose() — netty Function Reference

Architecture documentation for the useAfterClose() function in SubmissionQueueTest.java from the netty codebase.

Function java Buffer Telemetry

Entity Profile

Dependency Diagram

graph TD
  21af7db7_3589_491f_2d40_f2ac746a1a06["useAfterClose()"]
  fd25db8c_3569_d733_e052_a05bfd7b5f45["SubmissionQueueTest"]
  21af7db7_3589_491f_2d40_f2ac746a1a06 -->|defined in| fd25db8c_3569_d733_e052_a05bfd7b5f45
  style 21af7db7_3589_491f_2d40_f2ac746a1a06 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

transport-native-io_uring/src/test/java/io/netty/channel/uring/SubmissionQueueTest.java lines 72–99

    @Test
    public void useAfterClose() {
        RingBuffer ringBuffer = Native.createRingBuffer(8, 0);
        ringBuffer.enable();
        ringBuffer.close();

        SubmissionQueue submissionQueue = ringBuffer.ioUringSubmissionQueue();
        final CompletionQueue completionQueue = ringBuffer.ioUringCompletionQueue();

        assertNotNull(ringBuffer);
        assertNotNull(submissionQueue);
        assertNotNull(completionQueue);

        assertThrows(IllegalStateException.class, () -> submissionQueue.addNop((byte) 0, 1));
        assertThrows(IllegalStateException.class, submissionQueue::tryRegisterRingFd);
        assertThrows(IllegalStateException.class, submissionQueue::submit);
        assertThrows(IllegalStateException.class, submissionQueue::submitAndGet);

        assertEquals(0, completionQueue.count());
        assertFalse(completionQueue.hasCompletions());
        assertEquals(0, completionQueue.process((res, flags, data, cqeExtraData) -> {
            fail("Should not be called");
        }));

        // Ensure both return not null and also not segfault.
        assertNotNull(submissionQueue.toString());
        assertNotNull(completionQueue.toString());
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does useAfterClose() do?
useAfterClose() is a function in the netty codebase, defined in transport-native-io_uring/src/test/java/io/netty/channel/uring/SubmissionQueueTest.java.
Where is useAfterClose() defined?
useAfterClose() is defined in transport-native-io_uring/src/test/java/io/netty/channel/uring/SubmissionQueueTest.java at line 72.

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