| //===-- thread_inferior.cpp -------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <atomic> |
| #include <chrono> |
| #include <string> |
| #include <thread> |
| #include <vector> |
| |
| int main(int argc, char* argv[]) { |
| int thread_count = 2; |
| if (argc > 1) { |
| thread_count = std::stoi(argv[1], nullptr, 10); |
| } |
| |
| std::atomic<bool> delay(true); |
| std::vector<std::thread> threads; |
| for (int i = 0; i < thread_count; i++) { |
| threads.push_back(std::thread([&delay] { |
| while (delay.load()) |
| std::this_thread::sleep_for(std::chrono::seconds(1)); |
| })); |
| } |
| |
| // Cause a break. |
| volatile char *p = NULL; |
| *p = 'a'; |
| |
| delay.store(false); |
| for (std::thread& t : threads) { |
| t.join(); |
| } |
| |
| return 0; |
| } |