diff options
Diffstat (limited to 'test/std/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_for.pass.cpp')
-rw-r--r-- | test/std/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_for.pass.cpp | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/test/std/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_for.pass.cpp b/test/std/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_for.pass.cpp new file mode 100644 index 000000000000..3c1d6ddc6f40 --- /dev/null +++ b/test/std/thread/thread.mutex/thread.mutex.requirements/thread.timedmutex.requirements/thread.timedmutex.recursive/try_lock_for.pass.cpp @@ -0,0 +1,69 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// UNSUPPORTED: libcpp-has-no-threads + +// <mutex> + +// class recursive_timed_mutex; + +// template <class Rep, class Period> +// bool try_lock_for(const chrono::duration<Rep, Period>& rel_time); + +#include <mutex> +#include <thread> +#include <cstdlib> +#include <cassert> + +std::recursive_timed_mutex m; + +typedef std::chrono::steady_clock Clock; +typedef Clock::time_point time_point; +typedef Clock::duration duration; +typedef std::chrono::milliseconds ms; +typedef std::chrono::nanoseconds ns; + +void f1() +{ + time_point t0 = Clock::now(); + assert(m.try_lock_for(ms(300)) == true); + time_point t1 = Clock::now(); + assert(m.try_lock()); + m.unlock(); + m.unlock(); + ns d = t1 - t0 - ms(250); + assert(d < ns(50000000)); // within 50ms +} + +void f2() +{ + time_point t0 = Clock::now(); + assert(m.try_lock_for(ms(250)) == false); + time_point t1 = Clock::now(); + ns d = t1 - t0 - ms(250); + assert(d < ns(50000000)); // within 50ms +} + +int main() +{ + { + m.lock(); + std::thread t(f1); + std::this_thread::sleep_for(ms(250)); + m.unlock(); + t.join(); + } + { + m.lock(); + std::thread t(f2); + std::this_thread::sleep_for(ms(300)); + m.unlock(); + t.join(); + } +} |