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fix server crash on control client disconnect (quit, exit, bye)

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This commit is contained in:
Johannes Pohl 2017-06-06 22:45:28 +02:00
parent fa9715684b
commit b56d656c32
3 changed files with 12 additions and 13 deletions
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5
server/controlServer.cpp
View file

@ -83,7 +83,10 @@ void ControlServer::onMessageReceived(ControlSession* connection, const std::str
{
if (it->get() == connection)
{
sessions_.erase(it);
/// delete in a thread to avoid deadlock
auto func = [&](std::shared_ptr<ControlSession> s)->void{sessions_.erase(s);};
std::thread t(func, *it);
t.detach();
break;
}
}

16
server/controlSession.cpp
View file

@ -45,8 +45,8 @@ void ControlSession::start()
std::lock_guard<std::recursive_mutex> activeLock(activeMutex_);
active_ = true;
}
readerThread_ = new thread(&ControlSession::reader, this);
writerThread_ = new thread(&ControlSession::writer, this);
readerThread_ = thread(&ControlSession::reader, this);
writerThread_ = thread(&ControlSession::writer, this);
}
@ -66,25 +66,21 @@ void ControlSession::stop()
socket_->close(ec);
if (ec) logE << "Error in socket close: " << ec.message() << "\n";
}
if (readerThread_)
if (readerThread_.joinable())
{
logD << "joining readerThread\n";
readerThread_->join();
delete readerThread_;
readerThread_.join();
}
if (writerThread_)
if (writerThread_.joinable())
{
logD << "joining writerThread\n";
messages_.abort_wait();
writerThread_->join();
delete writerThread_;
writerThread_.join();
}
}
catch(...)
{
}
readerThread_ = NULL;
writerThread_ = NULL;
socket_ = NULL;
logD << "ControlSession stopped\n";
}

4
server/controlSession.h
View file

@ -78,8 +78,8 @@ protected:
std::atomic<bool> active_;
mutable std::recursive_mutex activeMutex_;
mutable std::recursive_mutex socketMutex_;
std::thread* readerThread_;
std::thread* writerThread_;
std::thread readerThread_;
std::thread writerThread_;
std::shared_ptr<tcp::socket> socket_;
ControlMessageReceiver* messageReceiver_;
Queue<std::string> messages_;