Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/thread/thread.condition/thread.condition.condvarany/wait_until_pred.pass.cpp

@@ -0,0 +1,117 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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
+
+// <condition_variable>
+
+// class condition_variable_any;
+
+// template <class Lock, class Duration, class Predicate>
+//     bool
+//     wait_until(Lock& lock,
+//                const chrono::time_point<Clock, Duration>& abs_time,
+//                Predicate pred);
+
+#include <condition_variable>
+#include <mutex>
+#include <thread>
+#include <chrono>
+#include <cassert>
+
+struct Clock
+{
+    typedef std::chrono::milliseconds duration;
+    typedef duration::rep             rep;
+    typedef duration::period          period;
+    typedef std::chrono::time_point<Clock> time_point;
+    static const bool is_steady =  true;
+
+    static time_point now()
+    {
+        using namespace std::chrono;
+        return time_point(duration_cast<duration>(
+                steady_clock::now().time_since_epoch()
+                                                 ));
+    }
+};
+
+class Pred
+{
+    int& i_;
+public:
+    explicit Pred(int& i) : i_(i) {}
+
+    bool operator()() {return i_ != 0;}
+};
+
+std::condition_variable_any cv;
+
+typedef std::timed_mutex L0;
+typedef std::unique_lock<L0> L1;
+
+L0 m0;
+
+int test1 = 0;
+int test2 = 0;
+
+int runs = 0;
+
+void f()
+{
+    L1 lk(m0);
+    assert(test2 == 0);
+    test1 = 1;
+    cv.notify_one();
+    Clock::time_point t0 = Clock::now();
+    Clock::time_point t = t0 + Clock::duration(250);
+    bool r = cv.wait_until(lk, t, Pred(test2));
+    Clock::time_point t1 = Clock::now();
+    if (runs == 0)
+    {
+        assert(t1 - t0 < Clock::duration(250));
+        assert(test2 != 0);
+        assert(r);
+    }
+    else
+    {
+        assert(t1 - t0 - Clock::duration(250) < Clock::duration(50));
+        assert(test2 == 0);
+        assert(!r);
+    }
+    ++runs;
+}
+
+int main()
+{
+    {
+        L1 lk(m0);
+        std::thread t(f);
+        assert(test1 == 0);
+        while (test1 == 0)
+            cv.wait(lk);
+        assert(test1 != 0);
+        test2 = 1;
+        lk.unlock();
+        cv.notify_one();
+        t.join();
+    }
+    test1 = 0;
+    test2 = 0;
+    {
+        L1 lk(m0);
+        std::thread t(f);
+        assert(test1 == 0);
+        while (test1 == 0)
+            cv.wait(lk);
+        assert(test1 != 0);
+        lk.unlock();
+        t.join();
+    }
+}