| 1 | // Distributed under the Boost Software License, Version 1.0. (See |
|---|---|
| 2 | // accompanying file LICENSE_1_0.txt or copy at |
| 3 | // http://www.boost.org/LICENSE_1_0.txt) |
| 4 | // (C) Copyright 2013 Vicente J. Botet Escriba |
| 5 | |
| 6 | #define BOOST_THREAD_PROVIDES_INTERRUPTIONS |
| 7 | |
| 8 | #include <boost/thread/detail/config.hpp> |
| 9 | |
| 10 | #include <boost/thread/thread.hpp> |
| 11 | #include <boost/thread/completion_latch.hpp> |
| 12 | |
| 13 | #include <boost/detail/lightweight_test.hpp> |
| 14 | #include <vector> |
| 15 | |
| 16 | namespace |
| 17 | { |
| 18 | |
| 19 | // Shared variables for generation completion_latch test |
| 20 | const int N_THREADS = 10; |
| 21 | boost::completion_latch gen_latch(N_THREADS); |
| 22 | boost::mutex mutex; |
| 23 | long global_parameter; |
| 24 | |
| 25 | void latch_thread() |
| 26 | { |
| 27 | { |
| 28 | boost::unique_lock<boost::mutex> lock(mutex); |
| 29 | global_parameter++; |
| 30 | } |
| 31 | gen_latch.count_down(); |
| 32 | //do something else |
| 33 | } |
| 34 | |
| 35 | } // namespace |
| 36 | |
| 37 | void test_global_parameter() |
| 38 | { |
| 39 | boost::unique_lock<boost::mutex> lock(mutex); |
| 40 | BOOST_TEST_EQ(global_parameter, N_THREADS); |
| 41 | } |
| 42 | |
| 43 | void reset_gen_latch() |
| 44 | { |
| 45 | { |
| 46 | boost::unique_lock<boost::mutex> lock(mutex); |
| 47 | BOOST_TEST_EQ(global_parameter, N_THREADS); |
| 48 | } |
| 49 | gen_latch.reset(count: N_THREADS); |
| 50 | } |
| 51 | |
| 52 | void test_completion_latch_reset() |
| 53 | { |
| 54 | boost::thread_group g; |
| 55 | boost::thread_group g2; |
| 56 | |
| 57 | gen_latch.then(funct: &reset_gen_latch); |
| 58 | |
| 59 | { |
| 60 | global_parameter = 0; |
| 61 | try |
| 62 | { |
| 63 | for (int i = 0; i < N_THREADS; ++i) |
| 64 | g.create_thread(threadfunc: &latch_thread); |
| 65 | |
| 66 | if (!gen_latch.try_wait()) |
| 67 | if (gen_latch.wait_for(rel_time: boost::chrono::milliseconds(100)) == boost::cv_status::timeout) |
| 68 | if (gen_latch.wait_until(abs_time: boost::chrono::steady_clock::now()+boost::chrono::milliseconds(100)) == boost::cv_status::timeout) |
| 69 | gen_latch.wait(); // All the threads have been updated the global_parameter |
| 70 | g.join_all(); |
| 71 | } |
| 72 | catch (...) |
| 73 | { |
| 74 | BOOST_TEST(false); |
| 75 | g.interrupt_all(); |
| 76 | g.join_all(); |
| 77 | //throw; |
| 78 | } |
| 79 | } |
| 80 | gen_latch.then(funct: &test_global_parameter); |
| 81 | { |
| 82 | global_parameter = 0; |
| 83 | try |
| 84 | { |
| 85 | for (int i = 0; i < N_THREADS; ++i) |
| 86 | g2.create_thread(threadfunc: &latch_thread); |
| 87 | |
| 88 | if (!gen_latch.try_wait()) |
| 89 | gen_latch.wait(); // All the threads have been updated the global_parameter |
| 90 | |
| 91 | g2.join_all(); |
| 92 | } |
| 93 | catch (...) |
| 94 | { |
| 95 | BOOST_TEST(false); |
| 96 | g2.interrupt_all(); |
| 97 | g2.join_all(); |
| 98 | //throw; |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | int main() |
| 104 | { |
| 105 | test_completion_latch_reset(); |
| 106 | return boost::report_errors(); |
| 107 | } |
| 108 | |
| 109 |