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Merge bitcoin/bitcoin#27011: Add simulation-based CCoinsViewCache fuzzer

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561848aaf2 Exercise non-DIRTY spent coins in caches in fuzz test (Pieter Wuille)
59e6828bb5 Add deterministic mode to CCoinsViewCache (Pieter Wuille)
b0ff310840 Add CCoinsViewCache::SanityCheck() and use it in fuzz test (Pieter Wuille)
3c9cea1340 Add simulation-based CCoinsViewCache fuzzer (Pieter Wuille)

Pull request description:

  The fuzzer goes through a sequence of operations that get applied to both a real stack of `CCoinsViewCache` objects, and to simulation data, comparing the two at the end.

ACKs for top commit:
  jamesob:
    re-ACK 561848aaf2
  dergoegge:
    Code review ACK 561848aaf2

Tree-SHA512: 68634f251fdb39436b128ecba093f651bff12ac11508dc9885253e57fd21efd44edf3b22b0f821c228175ec507df7d46c7f9f5404fc1eb8187fdbd136a5d5ee2
This commit is contained in:
merge-script
2023-02-13 15:31:50 +01:00
parent 141115a060 561848aaf2
commit 8126551d54
7 changed files with 514 additions and 6 deletions
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5
src/util/hasher.cpp
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@@ -9,7 +9,10 @@
SaltedTxidHasher::SaltedTxidHasher() : k0(GetRand<uint64_t>()), k1(GetRand<uint64_t>()) {}
SaltedOutpointHasher::SaltedOutpointHasher() : k0(GetRand<uint64_t>()), k1(GetRand<uint64_t>()) {}
SaltedOutpointHasher::SaltedOutpointHasher(bool deterministic) :
k0(deterministic ? 0x8e819f2607a18de6 : GetRand<uint64_t>()),
k1(deterministic ? 0xf4020d2e3983b0eb : GetRand<uint64_t>())
{}
SaltedSipHasher::SaltedSipHasher() : m_k0(GetRand<uint64_t>()), m_k1(GetRand<uint64_t>()) {}

2
src/util/hasher.h
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@@ -36,7 +36,7 @@ private:
const uint64_t k0, k1;
public:
SaltedOutpointHasher();
SaltedOutpointHasher(bool deterministic = false);
/**
* Having the hash noexcept allows libstdc++'s unordered_map to recalculate