[futures.atomic_future] and notify_all_at_thread_exit. This completes the header <future> and all of Chapter 30 (for C++0x enabled compilers).

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113017 91177308-0d34-0410-b5e6-96231b3b80d8

test/thread/thread.condition/notify_all_at_thread_exit.pass.cpp

@@ -13,9 +13,30 @@
 //   notify_all_at_thread_exit(condition_variable& cond, unique_lock<mutex> lk);
 
 #include <condition_variable>
+#include <mutex>
+#include <thread>
+#include <chrono>
 #include <cassert>
 
+std::condition_variable cv;
+std::mutex mut;
+
+typedef std::chrono::milliseconds ms;
+typedef std::chrono::high_resolution_clock Clock;
+
+void func()
+{
+    std::unique_lock<std::mutex> lk(mut);
+    std::notify_all_at_thread_exit(cv, std::move(lk));
+    std::this_thread::sleep_for(ms(300));
+}
+
 int main()
 {
-#error notify_all_at_thread_exit not implemented
+    std::unique_lock<std::mutex> lk(mut);
+    std::thread(func).detach();
+    Clock::time_point t0 = Clock::now();
+    cv.wait(lk);
+    Clock::time_point t1 = Clock::now();
+    assert(t1-t0 > ms(250));
 }