bool wait(duration_t* timeout) {
std::unique_lock<std::mutex> guard(mutex);
queue_lock->unlock();
std::cv_status res = std::cv_status::no_timeout;
if(timeout) {
auto start = std::chrono::system_clock::now();
res = ready.wait_for(guard, *timeout);
*timeout -= (std::chrono::system_clock::now() - start);
} else {
ready.wait(guard);
}
guard.unlock();
queue_lock->lock();
return res == std::cv_status::no_timeout;
}
void start ( void)
{ //---------------------- begin ---------------------
assert ( N ==0 );
//std::cout<<"1.-Begin main function \n";
N++ ;
s.try_lock() ;
N++ ;
std::thread T1 ( function1);
std::thread T2 ( function2);
//std::cout<<"2.-Inside main function \n";
std::this_thread::sleep_for( std::chrono::seconds(3) ) ;
assert ( N == 4 );
N++ ;
s.unlock() ;
T1.join() ;
T2.join() ;
assert ( N == 9);
//std::cout<<"7.-End of main function \n";
}
void after_yield() {
lock->unlock();
}