getFixedHeaderByte1() — netty Function Reference

Architecture documentation for the getFixedHeaderByte1() function in MqttEncoder.java from the netty codebase.

Function java Buffer Allocators called by 1

Entity Profile

Buffer→ Allocators→ getFixedHeaderByte1() — netty Function Reference

Dependency Diagram

graph TD
  0c2943f5_5e56_9055_be1d_2258275f171e["getFixedHeaderByte1()"]
  13c11c97_f8b9_b829_dd75_63846e7fcd55["MqttEncoder"]
  0c2943f5_5e56_9055_be1d_2258275f171e -->|defined in| 13c11c97_f8b9_b829_dd75_63846e7fcd55
  a7b9925d_5111_9e2c_2e13_04e1c42819fc["ByteBuf()"]
  a7b9925d_5111_9e2c_2e13_04e1c42819fc -->|calls| 0c2943f5_5e56_9055_be1d_2258275f171e
  style 0c2943f5_5e56_9055_be1d_2258275f171e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-mqtt/src/main/java/io/netty/handler/codec/mqtt/MqttEncoder.java lines 701–712

    private static int getFixedHeaderByte1(MqttFixedHeader header) {
        int ret = 0;
        ret |= header.messageType().value() << 4;
        if (header.isDup()) {
            ret |= 0x08;
        }
        ret |= header.qosLevel().value() << 1;
        if (header.isRetain()) {
            ret |= 0x01;
        }
        return ret;
    }