Stream: git-wasmtime

Topic: wasmtime / PR #5247 Use deterministic randomness fuzzing ...

Wasmtime GitHub notifications bot (Nov 10 2022 at 20:00):

alexcrichton opened PR #5247 from deterministic-fuzzing to main:

This commit updates the index allocation performed in the pooling allocator with a few refactorings:

• With cfg(fuzzing) a deterministic rng is now used to improve reproducibility of fuzz test cases.
• The Mutex was pushed inside of IndexAllocator, renamed from PoolingAllocationState.
• Randomness is now always done through a SmallRng stored in the IndexAllocator instead of using thread_rng.
• The is_empty method has been removed in favor of an Option-based return on alloc.

This refactoring is additionally intended to encapsulate more implementation details of IndexAllocator to more easily allow for alternate implementations in the future such as lock-free approaches (possibly).

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Wasmtime GitHub notifications bot (Nov 10 2022 at 20:22):

fitzgen submitted PR review.

Wasmtime GitHub notifications bot (Nov 10 2022 at 20:23):

alexcrichton has enabled auto merge for PR #5247.

Wasmtime GitHub notifications bot (Nov 10 2022 at 20:53):

alexcrichton merged PR #5247.

Last updated: Nov 22 2024 at 16:03 UTC