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doSetup() — netty Function Reference

Architecture documentation for the doSetup() function in PooledByteBufAllocatorAlignBenchmark.java from the netty codebase.

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Entity Profile

Dependency Diagram

graph TD
  613a6e78_2820_8e58_c371_53e5fca55dff["doSetup()"]
  f2a6748b_3f45_bdff_ac0b_1ebe34c917f2["PooledByteBufAllocatorAlignBenchmark"]
  613a6e78_2820_8e58_c371_53e5fca55dff -->|defined in| f2a6748b_3f45_bdff_ac0b_1ebe34c917f2
  style 613a6e78_2820_8e58_c371_53e5fca55dff fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

microbench/src/main/java/io/netty/microbench/buffer/PooledByteBufAllocatorAlignBenchmark.java lines 84–118

    @Setup
    public void doSetup() {
        PooledByteBufAllocator pooledAllocator = new PooledByteBufAllocator(true, 4, 4, 8192, 11, 0,
                0, 0, true, cacheAlign);
        pooledDirectBuffer = pooledAllocator.directBuffer(size + 64);
        sizeMask = size - 1;
        if (cacheAlign == 0) {
            long addr = pooledDirectBuffer.memoryAddress();
            // make sure address is miss-aligned
            if (addr % 64 == 0) {
                alignOffset = 63;
            }
            int off = 0;
            for (int c = 0; c < size; c++) {
                off = (off + OFFSET_ADD) & sizeMask;
                if ((addr + off + alignOffset) % BLOCK == 0) {
                    throw new IllegalStateException(
                            "Misaligned address is not really aligned");
                }
            }
        } else {
            alignOffset = 0;
            int off = 0;
            long addr = pooledDirectBuffer.memoryAddress();
            for (int c = 0; c < size; c++) {
                off = (off + OFFSET_ADD) & sizeMask;
                if ((addr + off) % BLOCK != 0) {
                    throw new IllegalStateException(
                            "Aligned address is not really aligned");
                }
            }
        }
        bytes = new byte[BLOCK];
        rand.nextBytes(bytes);
    }

Domain

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Defined In

Source

Frequently Asked Questions

What does doSetup() do?
doSetup() is a function in the netty codebase, defined in microbench/src/main/java/io/netty/microbench/buffer/PooledByteBufAllocatorAlignBenchmark.java.
Where is doSetup() defined?
doSetup() is defined in microbench/src/main/java/io/netty/microbench/buffer/PooledByteBufAllocatorAlignBenchmark.java at line 84.

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