shiftComps() — netty Function Reference

Architecture documentation for the shiftComps() function in CompositeByteBuf.java from the netty codebase.

Function java Buffer Telemetry called by 2

Entity Profile

Buffer→ Telemetry→ shiftComps() — netty Function Reference

Dependency Diagram

graph TD
  0114e156_fe91_83e4_1f0e_ee7c6b36a88d["shiftComps()"]
  6b8e4d93_5aed_4ff7_ccdd_9c021b0fe7d6["CompositeByteBuf"]
  0114e156_fe91_83e4_1f0e_ee7c6b36a88d -->|defined in| 6b8e4d93_5aed_4ff7_ccdd_9c021b0fe7d6
  e9920c4e_d91d_be1d_34e0_9c0ddc060f5d["CompositeByteBuf()"]
  e9920c4e_d91d_be1d_34e0_9c0ddc060f5d -->|calls| 0114e156_fe91_83e4_1f0e_ee7c6b36a88d
  8421b4cd_91c2_2528_5e16_aaa6ada1145b["addComp()"]
  8421b4cd_91c2_2528_5e16_aaa6ada1145b -->|calls| 0114e156_fe91_83e4_1f0e_ee7c6b36a88d
  style 0114e156_fe91_83e4_1f0e_ee7c6b36a88d fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/main/java/io/netty/buffer/CompositeByteBuf.java lines 2363–2386

    private void shiftComps(int i, int count) {
        final int size = componentCount, newSize = size + count;
        assert i >= 0 && i <= size && count > 0;
        if (newSize > components.length) {
            // grow the array
            int newArrSize = Math.max(size + (size >> 1), newSize);
            Component[] newArr;
            if (i == size) {
                newArr = Arrays.copyOf(components, newArrSize, Component[].class);
            } else {
                newArr = new Component[newArrSize];
                if (i > 0) {
                    System.arraycopy(components, 0, newArr, 0, i);
                }
                if (i < size) {
                    System.arraycopy(components, i, newArr, i + count, size - i);
                }
            }
            components = newArr;
        } else if (i < size) {
            System.arraycopy(components, i, components, i + count, size - i);
        }
        componentCount = newSize;
    }