1 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2 // See https://llvm.org/LICENSE.txt for license information.
3 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4 
5 // Threaded test for a fuzzer. The fuzzer should not crash.
6 #include <assert.h>
7 #include <cstddef>
8 #include <cstdint>
9 #include <cstring>
10 #include <thread>
11 
12 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
13   if (Size < 8) return 0;
14   assert(Data);
15   auto C = [&] {
16     size_t Res = 0;
17     for (size_t i = 0; i < Size / 2; i++)
18       Res += memcmp(Data, Data + Size / 2, 4);
19     return Res;
20   };
21   std::thread T[] = {std::thread(C), std::thread(C), std::thread(C),
22                      std::thread(C), std::thread(C), std::thread(C)};
23   for (auto &X : T)
24     X.join();
25   return 0;
26 }
27 
28