Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 86 insertions, 0 deletions

diff --git a/src/boost/libs/thread/test/test_9079_b.cpp b/src/boost/libs/thread/test/test_9079_b.cpp
new file mode 100644
index 00000000..90abd206
--- /dev/null
+++ b/src/boost/libs/thread/test/test_9079_b.cpp
@@ -0,0 +1,86 @@
+// Copyright (C) 2013 Vicente Botet
+//
+//  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)
+
+// B
+
+#include <boost/atomic.hpp>
+//#include <boost/log/trivial.hpp>
+#include <boost/chrono.hpp>
+#include <boost/chrono/chrono_io.hpp>
+#include <boost/thread.hpp>
+#include <boost/thread/condition_variable.hpp>
+
+typedef boost::chrono::high_resolution_clock Clock;
+typedef Clock::time_point TimePoint;
+
+inline TimePoint real_time_now()
+{
+  return Clock::now();
+}
+
+class Foo {
+  boost::atomic<bool> m_is_exiting;
+  TimePoint m_next_tick_time;
+
+public:
+
+  bool is_exiting() const
+  {
+    return m_is_exiting;
+  }
+
+  TimePoint spawn_tasks() // note that in my app, this call takes more time than here
+  {
+    using namespace boost::chrono;
+    const TimePoint now = real_time_now();
+
+    if (m_next_tick_time < now) {
+      m_next_tick_time = now + seconds(1);
+      //BOOST_LOG_TRIVIAL(info) << "TICK!";
+    }
+
+    return m_next_tick_time;
+  }
+
+};
+
+int main()
+{
+  using namespace boost::chrono;
+  static const milliseconds MIN_TIME_TASKS_SPAWN_FREQUENCY = milliseconds(1);
+  //microseconds(1); // THE SHORTER THE QUICKER TO REPRODUCE THE BUG
+
+  boost::condition_variable m_task_spawn_condition;
+  Foo foo;
+
+  boost::mutex main_thread_mutex;
+  boost::unique_lock < boost::mutex > main_thread_lock(main_thread_mutex);
+
+  //BOOST_LOG_TRIVIAL(info) << "[TaskScheduler::run_and_wait] Scheduling loop - BEGIN";
+
+  int i =11;
+  while (i--)
+  {
+    const TimePoint next_task_spawn_time = foo.spawn_tasks();
+
+    const TimePoint now = real_time_now();
+    const TimePoint next_minimum_spawn_time = now + MIN_TIME_TASKS_SPAWN_FREQUENCY;
+    const TimePoint next_spawn_time = next_task_spawn_time > TimePoint()
+        && next_task_spawn_time < next_minimum_spawn_time
+        ? next_task_spawn_time : next_minimum_spawn_time;
+
+    const TimePoint::duration wait_time = next_spawn_time - now;
+    if (wait_time > wait_time.zero()) {
+      // BOOST_LOG_TRIVIAL(trace) << "WAIT TIME: " << wait_time; // UNCOMMENT THIS: MAKES IT WORKS. WAT??????
+      boost::this_thread::sleep_for(boost::chrono::seconds(1));
+      std::cout << next_spawn_time << std::endl;
+      m_task_spawn_condition.wait_until(
+          main_thread_lock,
+          next_spawn_time); // DON'T WORK: WILL WAIT IF next_spawn_time is too close!
+    }
+
+  }
+
+}