handlerRemoved() — netty Function Reference

Architecture documentation for the handlerRemoved() function in ByteToMessageDecoder.java from the netty codebase.

Function java Buffer Allocators calls 2 called by 1

Entity Profile

Buffer→ Allocators→ handlerRemoved() — netty Function Reference

Dependency Diagram

graph TD
  df62d6fb_323f_5e89_3bf7_8847293a1412["handlerRemoved()"]
  efe4959f_3296_dbb1_4a4b_76b9d7ccec55["ByteToMessageDecoder"]
  df62d6fb_323f_5e89_3bf7_8847293a1412 -->|defined in| efe4959f_3296_dbb1_4a4b_76b9d7ccec55
  ee472e33_1a7d_641f_3906_3ad2ada7997f["decodeRemovalReentryProtection()"]
  ee472e33_1a7d_641f_3906_3ad2ada7997f -->|calls| df62d6fb_323f_5e89_3bf7_8847293a1412
  07d205b6_501b_721f_b872_e8e378f3c54d["fireChannelRead()"]
  df62d6fb_323f_5e89_3bf7_8847293a1412 -->|calls| 07d205b6_501b_721f_b872_e8e378f3c54d
  2fa71007_ea6a_c7bc_da66_51f4480aa368["handlerRemoved0()"]
  df62d6fb_323f_5e89_3bf7_8847293a1412 -->|calls| 2fa71007_ea6a_c7bc_da66_51f4480aa368
  style df62d6fb_323f_5e89_3bf7_8847293a1412 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-base/src/main/java/io/netty/handler/codec/ByteToMessageDecoder.java lines 257–277

    @Override
    public final void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        if (decodeState == STATE_CALLING_CHILD_DECODE) {
            decodeState = STATE_HANDLER_REMOVED_PENDING;
            return;
        }
        ByteBuf buf = cumulation;
        if (buf != null) {
            // Directly set this to null, so we are sure we not access it in any other method here anymore.
            cumulation = null;
            numReads = 0;
            int readable = buf.readableBytes();
            if (readable > 0) {
                ctx.fireChannelRead(buf);
                ctx.fireChannelReadComplete();
            } else {
                buf.release();
            }
        }
        handlerRemoved0(ctx);
    }