runFirstBestFit() — netty Function Reference

Architecture documentation for the runFirstBestFit() function in PoolChunk.java from the netty codebase.

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Buffer→ Search→ runFirstBestFit() — netty Function Reference

Dependency Diagram

graph TD
  96d34a61_1614_0158_28ca_09dcdd88e7ba["runFirstBestFit()"]
  271be16e_fb25_9fe6_0749_cf5dd80dd903["PoolChunk"]
  96d34a61_1614_0158_28ca_09dcdd88e7ba -->|defined in| 271be16e_fb25_9fe6_0749_cf5dd80dd903
  ff51bcad_2a8e_9ef1_b286_8e676953d24e["allocateRun()"]
  ff51bcad_2a8e_9ef1_b286_8e676953d24e -->|calls| 96d34a61_1614_0158_28ca_09dcdd88e7ba
  style 96d34a61_1614_0158_28ca_09dcdd88e7ba fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/main/java/io/netty/buffer/PoolChunk.java lines 426–437

    private int runFirstBestFit(int pageIdx) {
        if (freeBytes == chunkSize) {
            return arena.sizeClass.nPSizes - 1;
        }
        for (int i = pageIdx; i < arena.sizeClass.nPSizes; i++) {
            IntPriorityQueue queue = runsAvail[i];
            if (queue != null && !queue.isEmpty()) {
                return i;
            }
        }
        return -1;
    }