String() — netty Function Reference

Architecture documentation for the String() function in PoolSubpage.java from the netty codebase.

Function java Buffer Telemetry calls 2

Entity Profile

Buffer→ Telemetry→ String() — netty Function Reference

Dependency Diagram

graph TD
  5528af64_365b_cd85_1ea3_8d857070ee91["String()"]
  a6a571ea_fcf9_6eda_c073_f8d61fa999a3["PoolSubpage"]
  5528af64_365b_cd85_1ea3_8d857070ee91 -->|defined in| a6a571ea_fcf9_6eda_c073_f8d61fa999a3
  8430ff84_07e1_7071_2284_67c0376a0787["lock()"]
  5528af64_365b_cd85_1ea3_8d857070ee91 -->|calls| 8430ff84_07e1_7071_2284_67c0376a0787
  16244a67_1ca6_10f2_7f85_bae2df13ecc1["unlock()"]
  5528af64_365b_cd85_1ea3_8d857070ee91 -->|calls| 16244a67_1ca6_10f2_7f85_bae2df13ecc1
  style 5528af64_365b_cd85_1ea3_8d857070ee91 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/main/java/io/netty/buffer/PoolSubpage.java lines 217–241

    @Override
    public String toString() {
        final int numAvail;
        if (chunk == null) {
            // This is the head so there is no need to synchronize at all as these never change.
            numAvail = 0;
        } else {
            final boolean doNotDestroy;
            PoolSubpage<T> head = chunk.arena.smallSubpagePools[headIndex];
            head.lock();
            try {
                doNotDestroy = this.doNotDestroy;
                numAvail = this.numAvail;
            } finally {
                head.unlock();
            }
            if (!doNotDestroy) {
                // Not used for creating the String.
                return "(" + runOffset + ": not in use)";
            }
        }

        return "(" + this.runOffset + ": " + (this.maxNumElems - numAvail) + '/' + this.maxNumElems +
                ", offset: " + this.runOffset + ", length: " + this.runSize + ", elemSize: " + this.elemSize + ')';
    }