llvm-project/compiler-rt/test/fuzzer/ThreadedTest.cpp

27 lines
722 B
C++

// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// Threaded test for a fuzzer. The fuzzer should not crash.
#include <assert.h>
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <thread>
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
if (Size < 8) return 0;
assert(Data);
auto C = [&] {
size_t Res = 0;
for (size_t i = 0; i < Size / 2; i++)
Res += memcmp(Data, Data + Size / 2, 4);
return Res;
};
std::thread T[] = {std::thread(C), std::thread(C), std::thread(C),
std::thread(C), std::thread(C), std::thread(C)};
for (auto &X : T)
X.join();
return 0;
}