1 files changed, 80 insertions, 0 deletions
diff --git a/libs/thread/test/sync/mutual_exclusion/timed_mutex/try_lock_for_pass.cpp b/libs/thread/test/sync/mutual_exclusion/timed_mutex/try_lock_for_pass.cpp
new file mode 100644
index 0000000000..c3fa7a63c0
--- /dev/null
+++ b/libs/thread/test/sync/mutual_exclusion/timed_mutex/try_lock_for_pass.cpp
@@ -0,0 +1,80 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// Copyright (C) 2011 Vicente J. Botet Escriba
+//
+//  Distributed under the Boost Software License, Version 1.0. (See accompanying
+//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// <boost/thread/timed_mutex.hpp>
+
+// class timed_mutex;
+
+// template <class Rep, class Period>
+//     bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
+
+#include <boost/thread/mutex.hpp>
+#include <boost/thread/thread.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+#if defined BOOST_THREAD_USES_CHRONO
+
+boost::timed_mutex m;
+
+typedef boost::chrono::steady_clock Clock;
+typedef Clock::time_point time_point;
+typedef Clock::duration duration;
+typedef boost::chrono::milliseconds ms;
+typedef boost::chrono::nanoseconds ns;
+
+void f1()
+{
+  time_point t0 = Clock::now();
+  // This test is spurious as it depends on the time the thread system switches the threads
+  BOOST_TEST(m.try_lock_for(ms(300)+ms(2000)) == true);
+  time_point t1 = Clock::now();
+  m.unlock();
+  ns d = t1 - t0 - ms(250);
+  BOOST_TEST(d < ns(5000000)+ms(2000)); // within 5ms
+}
+
+void f2()
+{
+  time_point t0 = Clock::now();
+  BOOST_TEST(m.try_lock_for(ms(250)) == false);
+  time_point t1 = Clock::now();
+  ns d = t1 - t0 - ms(250);
+  // This test is spurious as it depends on the time the thread system switches the threads
+  BOOST_TEST(d < ns(5000000)+ms(1000)); // within 5ms
+}
+
+int main()
+{
+  {
+    m.lock();
+    boost::thread t(f1);
+    boost::this_thread::sleep_for(ms(250));
+    m.unlock();
+    t.join();
+  }
+  {
+    m.lock();
+    boost::thread t(f2);
+    boost::this_thread::sleep_for(ms(300));
+    m.unlock();
+    t.join();
+  }
+
+  return boost::report_errors();
+}
+
+#else
+#error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
+#endif
+