| 1 | // Copyright (C) 2012 Vicente Botet |
|---|---|
| 2 | // |
| 3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 5 | |
| 6 | #define BOOST_THREAD_VERSION 2 |
| 7 | |
| 8 | #include <boost/date_time.hpp> |
| 9 | #include <boost/thread/mutex.hpp> |
| 10 | #include <boost/thread/thread_only.hpp> |
| 11 | #include <iostream> |
| 12 | |
| 13 | // Number should be big enough to allow context switch between threads, otherwise the bug doesn't show. |
| 14 | static int MAX_COUNTS; |
| 15 | |
| 16 | class ItemKeeper { |
| 17 | |
| 18 | public: |
| 19 | ItemKeeper() { } |
| 20 | |
| 21 | void doSomething() { |
| 22 | boost::unique_lock<boost::mutex> scoped_lock(mutex); |
| 23 | int counts = MAX_COUNTS; |
| 24 | while (counts--); |
| 25 | } |
| 26 | |
| 27 | private: |
| 28 | boost::mutex mutex; |
| 29 | }; |
| 30 | |
| 31 | ItemKeeper itemKeeper; |
| 32 | |
| 33 | int MAX_ITERATIONS(5); |
| 34 | |
| 35 | void threadFunc(int invokerID, bool& exceptionOccurred) { |
| 36 | try { |
| 37 | for (int i = 0; i < MAX_ITERATIONS; i++) { |
| 38 | std::cout << "Thread "<< invokerID << ", iteration "<< i << std::endl; |
| 39 | itemKeeper.doSomething(); |
| 40 | } |
| 41 | } catch (...) { |
| 42 | exceptionOccurred = true; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | |
| 47 | int main(int argc, char* argv[]) { |
| 48 | if (argc < 2) { |
| 49 | MAX_COUNTS = 5000000; |
| 50 | } else { |
| 51 | std::string valueStr(argv[1]); |
| 52 | bool has_only_digits = (valueStr.find_first_not_of( s: "0123456789") == std::string::npos); |
| 53 | if (has_only_digits) { |
| 54 | std::istringstream aStream(valueStr); |
| 55 | aStream >> MAX_COUNTS; |
| 56 | } else { |
| 57 | std::cerr << "Argument should be an integer\n"; |
| 58 | return 1; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | bool exceptionOccurred1(false); |
| 63 | bool exceptionOccurred2(false); |
| 64 | |
| 65 | boost::thread thread1(threadFunc, 1, boost::ref(t&: exceptionOccurred1)); |
| 66 | boost::thread thread2(threadFunc, 2, boost::ref(t&: exceptionOccurred2)); |
| 67 | |
| 68 | boost::posix_time::time_duration timeout = boost::posix_time::milliseconds(10000*100); |
| 69 | |
| 70 | bool deadlockOccured(false); |
| 71 | //thread1.join(); |
| 72 | //thread2.join(); |
| 73 | |
| 74 | if (!thread1.timed_join(rel_time: timeout)) { |
| 75 | deadlockOccured = true; |
| 76 | thread1.interrupt(); |
| 77 | } |
| 78 | if (!thread2.timed_join(rel_time: timeout)) { |
| 79 | deadlockOccured = true; |
| 80 | thread2.interrupt(); |
| 81 | } |
| 82 | |
| 83 | if (deadlockOccured) { |
| 84 | std::cout << "Deadlock occurred\n"; |
| 85 | return 1; |
| 86 | } |
| 87 | if (exceptionOccurred1 || exceptionOccurred2) { |
| 88 | std::cout << "Exception occurred\n"; |
| 89 | return 1; |
| 90 | } |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 |