encodeSlowPath() — netty Function Reference

Architecture documentation for the encodeSlowPath() function in QpackHuffmanEncoder.java from the netty codebase.

Function java Buffer Allocators calls 1 called by 1

Entity Profile

Buffer→ Allocators→ encodeSlowPath() — netty Function Reference

Dependency Diagram

graph TD
  f77bef4d_d92e_47a2_74c1_66b2a5dee76f["encodeSlowPath()"]
  4b79dd82_6f55_2bf1_6190_f22cb12cc745["QpackHuffmanEncoder"]
  f77bef4d_d92e_47a2_74c1_66b2a5dee76f -->|defined in| 4b79dd82_6f55_2bf1_6190_f22cb12cc745
  7ddd2baf_fb66_a09e_3812_b19b8a4254fa["encode()"]
  7ddd2baf_fb66_a09e_3812_b19b8a4254fa -->|calls| f77bef4d_d92e_47a2_74c1_66b2a5dee76f
  54e813e6_f05a_21f4_818e_9c0768b978f9["length()"]
  f77bef4d_d92e_47a2_74c1_66b2a5dee76f -->|calls| 54e813e6_f05a_21f4_818e_9c0768b978f9
  style f77bef4d_d92e_47a2_74c1_66b2a5dee76f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http3/src/main/java/io/netty/handler/codec/http3/QpackHuffmanEncoder.java lines 68–92

    private void encodeSlowPath(ByteBuf out, CharSequence data) {
        long current = 0;
        int n = 0;

        for (int i = 0; i < data.length(); i++) {
            int b = data.charAt(i) & 0xFF;
            int code = codes[b];
            int nbits = lengths[b];

            current <<= nbits;
            current |= code;
            n += nbits;

            while (n >= 8) {
                n -= 8;
                out.writeByte((int) (current >> n));
            }
        }

        if (n > 0) {
            current <<= 8 - n;
            current |= 0xFF >>> n; // this should be EOS symbol
            out.writeByte((int) current);
        }
    }