const_iterator Wait(const K &key, OperationEnvironment &env,
TimeoutClock timeout) {
while (true) {
auto i = map.find(key);
if (i != map.end() && !i->second.old)
return const_iterator(i);
if (env.IsCancelled())
return end();
int remaining = timeout.GetRemainingSigned();
if (remaining <= 0)
return end();
cond.timed_wait(*this, remaining);
}
}
const_iterator Wait(std::unique_lock<Mutex> &lock,
const K &key, OperationEnvironment &env,
TimeoutClock timeout) {
while (true) {
auto i = map.find(key);
if (i != map.end() && !i->second.old)
return const_iterator(i);
if (env.IsCancelled())
return end();
const auto remaining = timeout.GetRemainingSigned();
if (remaining.count() <= 0)
return end();
cond.wait_for(lock, remaining);
}
}