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//===----------------------------------------------------------------------===//
//
// 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
// notify_all_at_thread_exit(...) requires move semantics to transfer the
// unique_lock.
// UNSUPPORTED: c++98, c++03
// <condition_variable>
// void
// 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()
{
std::unique_lock<std::mutex> lk(mut);
std::thread t(func);
Clock::time_point t0 = Clock::now();
cv.wait(lk);
Clock::time_point t1 = Clock::now();
assert(t1-t0 > ms(250));
t.join();
}
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