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sizeIdx2sizeCompute() — netty Function Reference

Architecture documentation for the sizeIdx2sizeCompute() function in SizeClasses.java from the netty codebase.

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Entity Profile

Dependency Diagram

graph TD
  3b0c05d0_815b_b398_4d70_7023a40b5c50["sizeIdx2sizeCompute()"]
  d1cbce7b_bd0a_5553_8e62_6deeb38137ff["SizeClasses"]
  3b0c05d0_815b_b398_4d70_7023a40b5c50 -->|defined in| d1cbce7b_bd0a_5553_8e62_6deeb38137ff
  style 3b0c05d0_815b_b398_4d70_7023a40b5c50 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

buffer/src/main/java/io/netty/buffer/SizeClasses.java lines 280–293

    @Override
    public int sizeIdx2sizeCompute(int sizeIdx) {
        int group = sizeIdx >> LOG2_SIZE_CLASS_GROUP;
        int mod = sizeIdx & (1 << LOG2_SIZE_CLASS_GROUP) - 1;

        int groupSize = group == 0? 0 :
                1 << LOG2_QUANTUM + LOG2_SIZE_CLASS_GROUP - 1 << group;

        int shift = group == 0? 1 : group;
        int lgDelta = shift + LOG2_QUANTUM - 1;
        int modSize = mod + 1 << lgDelta;

        return groupSize + modSize;
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does sizeIdx2sizeCompute() do?
sizeIdx2sizeCompute() is a function in the netty codebase, defined in buffer/src/main/java/io/netty/buffer/SizeClasses.java.
Where is sizeIdx2sizeCompute() defined?
sizeIdx2sizeCompute() is defined in buffer/src/main/java/io/netty/buffer/SizeClasses.java at line 280.

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