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testUseConfiguredEventLoop() — netty Function Reference

Architecture documentation for the testUseConfiguredEventLoop() function in DnsAddressResolverGroupTest.java from the netty codebase.

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Dependency Diagram

graph TD
  17ad9576_75c4_5cdb_b86b_aa07026d7c42["testUseConfiguredEventLoop()"]
  7de44a2b_93e5_48a5_c515_7968f4e2b9e0["DnsAddressResolverGroupTest"]
  17ad9576_75c4_5cdb_b86b_aa07026d7c42 -->|defined in| 7de44a2b_93e5_48a5_c515_7968f4e2b9e0
  style 17ad9576_75c4_5cdb_b86b_aa07026d7c42 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

resolver-dns/src/test/java/io/netty/resolver/dns/DnsAddressResolverGroupTest.java lines 42–71

    @Test
    public void testUseConfiguredEventLoop() throws InterruptedException {
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(1, NioIoHandler.newFactory());
        final EventLoop loop = group.next();

        EventLoopGroup defaultEventLoopGroup = new MultiThreadIoEventLoopGroup(1, LocalIoHandler.newFactory());
        DnsNameResolverBuilder builder = new DnsNameResolverBuilder()
                .eventLoop(loop).datagramChannelType(NioDatagramChannel.class);
        DnsAddressResolverGroup resolverGroup = new DnsAddressResolverGroup(builder);
        try {
            final Promise<?> promise = loop.newPromise();
            AddressResolver<?> resolver = resolverGroup.getResolver(defaultEventLoopGroup.next());
            resolver.resolve(new SocketAddress() {
                private static final long serialVersionUID = 3169703458729818468L;
            }).addListener((FutureListener<Object>) future -> {
                try {
                    assertInstanceOf(UnsupportedAddressTypeException.class, future.cause());
                    assertTrue(loop.inEventLoop());
                    promise.setSuccess(null);
                } catch (Throwable cause) {
                    promise.setFailure(cause);
                }
            }).await();
            promise.sync();
        } finally {
            resolverGroup.close();
            group.shutdownGracefully();
            defaultEventLoopGroup.shutdownGracefully();
        }
    }

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Frequently Asked Questions

What does testUseConfiguredEventLoop() do?
testUseConfiguredEventLoop() is a function in the netty codebase, defined in resolver-dns/src/test/java/io/netty/resolver/dns/DnsAddressResolverGroupTest.java.
Where is testUseConfiguredEventLoop() defined?
testUseConfiguredEventLoop() is defined in resolver-dns/src/test/java/io/netty/resolver/dns/DnsAddressResolverGroupTest.java at line 42.

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