void NetworkInterfaceImpl::_consumeNetworkRequests() {
stdx::unique_lock<stdx::mutex> lk(_mutex);
while (!_inShutdown) {
if (_pending.empty()) {
if (_threads.size() > kMinThreads) {
const Date_t nowDate = now();
const Date_t nextThreadRetirementDate =
_lastFullUtilizationDate + kMaxIdleThreadAge;
if (nowDate > nextThreadRetirementDate) {
_lastFullUtilizationDate = nowDate;
break;
}
}
_hasPending.wait_for(lk, kMaxIdleThreadAge);
continue;
}
CommandData todo = _pending.front();
_pending.pop_front();
++_numActiveNetworkRequests;
--_numIdleThreads;
lk.unlock();
TaskExecutor::ResponseStatus result = _commandRunner.runCommand(todo.request);
LOG(2) << "Network status of sending " << todo.request.cmdObj.firstElementFieldName()
<< " to " << todo.request.target << " was " << result.getStatus();
todo.onFinish(result);
lk.lock();
--_numActiveNetworkRequests;
++_numIdleThreads;
_signalWorkAvailable_inlock();
}
--_numIdleThreads;
if (_inShutdown) {
return;
}
// This thread is ending because it was idle for too long.
// Find self in _threads, remove self from _threads, detach self.
for (size_t i = 0; i < _threads.size(); ++i) {
if (_threads[i]->get_id() != stdx::this_thread::get_id()) {
continue;
}
_threads[i]->detach();
_threads[i].swap(_threads.back());
_threads.pop_back();
return;
}
severe().stream() << "Could not find this thread, with id " << stdx::this_thread::get_id()
<< " in the replication networking thread pool";
fassertFailedNoTrace(28676);
}
void NetworkInterfaceImpl::_runOneCommand() {
stdx::unique_lock<stdx::mutex> lk(_mutex);
if (_pending.empty()) {
// This may happen if any commands were canceled.
return;
}
CommandData todo = _pending.front();
_pending.pop_front();
++_numActiveNetworkRequests;
lk.unlock();
TaskExecutor::ResponseStatus result = _commandRunner.runCommand(todo.request);
LOG(2) << "Network status of sending " << todo.request.cmdObj.firstElementFieldName() << " to "
<< todo.request.target << " was " << result.getStatus();
todo.onFinish(result);
lk.lock();
--_numActiveNetworkRequests;
_signalWorkAvailable_inlock();
}