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Merge bitcoin/bitcoin#21941: fuzz: Call const member functions in addrman fuzz test only once

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faf7623106 fuzz: Call const member functions in addrman fuzz test only once (MarcoFalke)

Pull request description:

  Logically based on #21940

  Currently the fuzz test may spend a long time generating random numbers:

  ![Screenshot from 2021-05-13 12-14-09](https://user-images.githubusercontent.com/6399679/118112238-06ecd880-b3e5-11eb-8013-6e0c20e6159f.png)

  Fix that by calling const member functions only once.

  Hopefully fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34224

ACKs for top commit:
  practicalswift:
    cr ACK faf7623106: touches only `src/test/fuzz/addrman.cpp`

Tree-SHA512: 0fe9e0111eb1706fc39bd2f90d4b87a771882bada54c01e96d8e79c2afca2f1081139d5ab680285a81835cc5142e74ada422a181db34b01904975d1e167e64c2
This commit is contained in:
MarcoFalke 2021-06-13 19:37:55 +02:00
commit d75a1df617
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1 changed files with 9 additions and 14 deletions
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23
src/test/fuzz/addrman.cpp
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@ -56,15 +56,6 @@ FUZZ_TARGET_INIT(addrman, initialize_addrman)
[&] {
(void)addr_man.SelectTriedCollision();
},
[&] {
(void)addr_man.Select(fuzzed_data_provider.ConsumeBool());
},
[&] {
(void)addr_man.GetAddr(
/* max_addresses */ fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096),
/* max_pct */ fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096),
/* network */ std::nullopt);
},
[&] {
const std::optional<CAddress> opt_address = ConsumeDeserializable<CAddress>(fuzzed_data_provider);
const std::optional<CNetAddr> opt_net_addr = ConsumeDeserializable<CNetAddr>(fuzzed_data_provider);
@ -109,12 +100,16 @@ FUZZ_TARGET_INIT(addrman, initialize_addrman)
if (opt_service) {
addr_man.SetServices(*opt_service, ConsumeWeakEnum(fuzzed_data_provider, ALL_SERVICE_FLAGS));
}
},
[&] {
(void)addr_man.Check();
});
}
(void)addr_man.size();
const CAddrMan& const_addr_man{addr_man};
(void)/*const_*/addr_man.GetAddr(
/* max_addresses */ fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096),
/* max_pct */ fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, 4096),
/* network */ std::nullopt);
(void)/*const_*/addr_man.Check();
(void)/*const_*/addr_man.Select(fuzzed_data_provider.ConsumeBool());
(void)const_addr_man.size();
CDataStream data_stream(SER_NETWORK, PROTOCOL_VERSION);
data_stream << addr_man;
data_stream << const_addr_man;
}