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doReadBytes() — netty Function Reference

Architecture documentation for the doReadBytes() function in AbstractKQueueChannel.java from the netty codebase.

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Dependency Diagram

graph TD
  ef34023b_e1ce_2a26_daf6_3a3a0bb3bf55["doReadBytes()"]
  e50a36fb_84e6_15bc_5dc3_edd4246018f8["AbstractKQueueChannel"]
  ef34023b_e1ce_2a26_daf6_3a3a0bb3bf55 -->|defined in| e50a36fb_84e6_15bc_5dc3_edd4246018f8
  style ef34023b_e1ce_2a26_daf6_3a3a0bb3bf55 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

transport-classes-kqueue/src/main/java/io/netty/channel/kqueue/AbstractKQueueChannel.java lines 283–297

    protected final int doReadBytes(ByteBuf byteBuf) throws Exception {
        int writerIndex = byteBuf.writerIndex();
        int localReadAmount;
        unsafe().recvBufAllocHandle().attemptedBytesRead(byteBuf.writableBytes());
        if (byteBuf.hasMemoryAddress()) {
            localReadAmount = socket.readAddress(byteBuf.memoryAddress(), writerIndex, byteBuf.capacity());
        } else {
            ByteBuffer buf = byteBuf.internalNioBuffer(writerIndex, byteBuf.writableBytes());
            localReadAmount = socket.read(buf, buf.position(), buf.limit());
        }
        if (localReadAmount > 0) {
            byteBuf.writerIndex(writerIndex + localReadAmount);
        }
        return localReadAmount;
    }

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Frequently Asked Questions

What does doReadBytes() do?
doReadBytes() is a function in the netty codebase, defined in transport-classes-kqueue/src/main/java/io/netty/channel/kqueue/AbstractKQueueChannel.java.
Where is doReadBytes() defined?
doReadBytes() is defined in transport-classes-kqueue/src/main/java/io/netty/channel/kqueue/AbstractKQueueChannel.java at line 283.

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