Dispatch EventHandler events to dedicated virtual functions

Remove enum EventType

12 files changed, 134 insertions, 146 deletions

diff --git a/src/coremods/core_dns.cpp b/src/coremods/core_dns.cpp
index 47d5b3cab..de8dedd4a 100644
--- a/src/coremods/core_dns.cpp
+++ b/src/coremods/core_dns.cpp
@@ -555,14 +555,13 @@ class MyManager : public Manager, public Timer, public EventHandler
 		}
 	}
 
-	void HandleEvent(EventType et, int)
+	void OnEventHandlerError(int errcode) CXX11_OVERRIDE
 	{
-		if (et == EVENT_ERROR)
-		{
-			ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "UDP socket got an error event");
-			return;
-		}
+		ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "UDP socket got an error event");
+	}
 
+	void OnEventHandlerRead() CXX11_OVERRIDE
+	{
 		unsigned char buffer[524];
 		irc::sockets::sockaddrs from;
 		socklen_t x = sizeof(from);
diff --git a/src/inspsocket.cpp b/src/inspsocket.cpp
index 2646e265f..fbeb60122 100644
--- a/src/inspsocket.cpp
+++ b/src/inspsocket.cpp
@@ -417,7 +417,7 @@ bool SocketTimeout::Tick(time_t)
 void BufferedSocket::OnConnected() { }
 void BufferedSocket::OnTimeout() { return; }
 
-void BufferedSocket::DoWrite()
+void BufferedSocket::OnEventHandlerWrite()
 {
 	if (state == I_CONNECTING)
 	{
@@ -426,7 +426,7 @@ void BufferedSocket::DoWrite()
 		if (!GetIOHook())
 			SocketEngine::ChangeEventMask(this, FD_WANT_FAST_READ | FD_WANT_EDGE_WRITE);
 	}
-	this->StreamSocket::DoWrite();
+	this->StreamSocket::OnEventHandlerWrite();
 }
 
 BufferedSocket::~BufferedSocket()
@@ -436,57 +436,67 @@ BufferedSocket::~BufferedSocket()
 	delete Timeout;
 }
 
-void StreamSocket::HandleEvent(EventType et, int errornum)
+void StreamSocket::OnEventHandlerError(int errornum)
 {
 	if (!error.empty())
 		return;
+
+	if (errornum == 0)
+		SetError("Connection closed");
+	else
+		SetError(SocketEngine::GetError(errornum));
+
 	BufferedSocketError errcode = I_ERR_OTHER;
-	try {
-		switch (et)
-		{
-			case EVENT_ERROR:
-			{
-				if (errornum == 0)
-					SetError("Connection closed");
-				else
-					SetError(SocketEngine::GetError(errornum));
-				switch (errornum)
-				{
-					case ETIMEDOUT:
-						errcode = I_ERR_TIMEOUT;
-						break;
-					case ECONNREFUSED:
-					case 0:
-						errcode = I_ERR_CONNECT;
-						break;
-					case EADDRINUSE:
-						errcode = I_ERR_BIND;
-						break;
-					case EPIPE:
-					case EIO:
-						errcode = I_ERR_WRITE;
-						break;
-				}
-				break;
-			}
-			case EVENT_READ:
-			{
-				DoRead();
-				break;
-			}
-			case EVENT_WRITE:
-			{
-				DoWrite();
-				break;
-			}
-		}
+	switch (errornum)
+	{
+		case ETIMEDOUT:
+			errcode = I_ERR_TIMEOUT;
+			break;
+		case ECONNREFUSED:
+		case 0:
+			errcode = I_ERR_CONNECT;
+			break;
+		case EADDRINUSE:
+			errcode = I_ERR_BIND;
+			break;
+		case EPIPE:
+		case EIO:
+			errcode = I_ERR_WRITE;
+			break;
+	}
+
+	// Log and call OnError()
+	CheckError(errcode);
+}
+
+void StreamSocket::OnEventHandlerRead()
+{
+	if (!error.empty())
+		return;
+
+	try
+	{
+		DoRead();
 	}
 	catch (CoreException& ex)
 	{
-		ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "Caught exception in socket processing on FD %d - '%s'",
-			fd, ex.GetReason().c_str());
+		ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "Caught exception in socket processing on FD %d - '%s'", fd, ex.GetReason().c_str());
 		SetError(ex.GetReason());
 	}
+	CheckError(I_ERR_OTHER);
+}
+
+void StreamSocket::OnEventHandlerWrite()
+{
+	if (!error.empty())
+		return;
+
+	DoWrite();
+	CheckError(I_ERR_OTHER);
+}
+
+void StreamSocket::CheckError(BufferedSocketError errcode)
+{
 	if (!error.empty())
 	{
 		ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Error on FD %d - '%s'", fd, error.c_str());
diff --git a/src/listensocket.cpp b/src/listensocket.cpp
index c1339fb3d..fa43e6827 100644
--- a/src/listensocket.cpp
+++ b/src/listensocket.cpp
@@ -100,8 +100,7 @@ ListenSocket::~ListenSocket()
 	}
 }
 
-/* Just seperated into another func for tidiness really.. */
-void ListenSocket::AcceptInternal()
+void ListenSocket::OnEventHandlerRead()
 {
 	irc::sockets::sockaddrs client;
 	irc::sockets::sockaddrs server;
@@ -109,7 +108,7 @@ void ListenSocket::AcceptInternal()
 	socklen_t length = sizeof(client);
 	int incomingSockfd = SocketEngine::Accept(this, &client.sa, &length);
 
-	ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "HandleEvent for Listensocket %s nfd=%d", bind_desc.c_str(), incomingSockfd);
+	ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "Accepting connection on socket %s fd %d", bind_desc.c_str(), incomingSockfd);
 	if (incomingSockfd < 0)
 	{
 		ServerInstance->stats.Refused++;
@@ -179,22 +178,6 @@ void ListenSocket::AcceptInternal()
 	}
 }
 
-void ListenSocket::HandleEvent(EventType e, int err)
-{
-	switch (e)
-	{
-		case EVENT_ERROR:
-			ServerInstance->Logs->Log("SOCKET", LOG_DEFAULT, "ListenSocket::HandleEvent() received a socket engine error event! well shit! '%s'", strerror(err));
-			break;
-		case EVENT_WRITE:
-			ServerInstance->Logs->Log("SOCKET", LOG_DEBUG, "*** BUG *** ListenSocket::HandleEvent() got a WRITE event!!!");
-			break;
-		case EVENT_READ:
-			this->AcceptInternal();
-			break;
-	}
-}
-
 bool ListenSocket::ResetIOHookProvider()
 {
 	std::string provname = bind_tag->getString("ssl");
diff --git a/src/modules/extra/m_pgsql.cpp b/src/modules/extra/m_pgsql.cpp
index 1e73c0143..ff8c1174c 100644
--- a/src/modules/extra/m_pgsql.cpp
+++ b/src/modules/extra/m_pgsql.cpp
@@ -178,18 +178,19 @@ class SQLConn : public SQLProvider, public EventHandler
 		}
 	}
 
-	void HandleEvent(EventType et, int errornum)
+	void OnEventHandlerRead() CXX11_OVERRIDE
 	{
-		switch (et)
-		{
-			case EVENT_READ:
-			case EVENT_WRITE:
-				DoEvent();
-			break;
+		DoEvent();
+	}
 
-			case EVENT_ERROR:
-				DelayReconnect();
-		}
+	void OnEventHandlerWrite() CXX11_OVERRIDE
+	{
+		DoEvent();
+	}
+
+	void OnEventHandlerError(int errornum) CXX11_OVERRIDE
+	{
+		DelayReconnect();
 	}
 
 	std::string GetDSN()
diff --git a/src/modules/m_ident.cpp b/src/modules/m_ident.cpp
index 959e58a47..0e5aa43ae 100644
--- a/src/modules/m_ident.cpp
+++ b/src/modules/m_ident.cpp
@@ -140,9 +140,8 @@ class IdentRequestSocket : public EventHandler
 		}
 	}
 
-	void OnConnected()
+	void OnEventHandlerWrite() CXX11_OVERRIDE
 	{
-		ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "OnConnected()");
 		SocketEngine::ChangeEventMask(this, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
 
 		char req[32];
@@ -163,30 +162,6 @@ class IdentRequestSocket : public EventHandler
 			done = true;
 	}
 
-	void HandleEvent(EventType et, int errornum = 0)
-	{
-		switch (et)
-		{
-			case EVENT_READ:
-				/* fd readable event, received ident response */
-				ReadResponse();
-			break;
-			case EVENT_WRITE:
-				/* fd writeable event, successfully connected! */
-				OnConnected();
-			break;
-			case EVENT_ERROR:
-				/* fd error event, ohshi- */
-				ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "EVENT_ERROR");
-				/* We *must* Close() here immediately or we get a
-				 * huge storm of EVENT_ERROR events!
-				 */
-				Close();
-				done = true;
-			break;
-		}
-	}
-
 	void Close()
 	{
 		/* Remove ident socket from engine, and close it, but dont detatch it
@@ -204,7 +179,7 @@ class IdentRequestSocket : public EventHandler
 		return done;
 	}
 
-	void ReadResponse()
+	void OnEventHandlerRead() CXX11_OVERRIDE
 	{
 		/* We don't really need to buffer for incomplete replies here, since IDENT replies are
 		 * extremely short - there is *no* sane reason it'd be in more than one packet
@@ -264,6 +239,12 @@ class IdentRequestSocket : public EventHandler
 		}
 	}
 
+	void OnEventHandlerError(int errornum) CXX11_OVERRIDE
+	{
+		Close();
+		done = true;
+	}
+
 	CullResult cull() CXX11_OVERRIDE
 	{
 		Close();
diff --git a/src/socketengine.cpp b/src/socketengine.cpp
index eadfc73d3..4183488b7 100644
--- a/src/socketengine.cpp
+++ b/src/socketengine.cpp
@@ -53,6 +53,14 @@ void EventHandler::SetFd(int FD)
 	this->fd = FD;
 }
 
+void EventHandler::OnEventHandlerWrite()
+{
+}
+
+void EventHandler::OnEventHandlerError(int errornum)
+{
+}
+
 void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
 {
 	int old_m = eh->event_mask;
@@ -91,9 +99,9 @@ void SocketEngine::DispatchTrialWrites()
 		int mask = eh->event_mask;
 		eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE);
 		if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ)
-			eh->HandleEvent(EVENT_READ, 0);
+			eh->OnEventHandlerRead();
 		if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
-			eh->HandleEvent(EVENT_WRITE, 0);
+			eh->OnEventHandlerWrite();
 	}
 }
 
diff --git a/src/socketengines/socketengine_epoll.cpp b/src/socketengines/socketengine_epoll.cpp
index 29404f416..8548e0824 100644
--- a/src/socketengines/socketengine_epoll.cpp
+++ b/src/socketengines/socketengine_epoll.cpp
@@ -182,7 +182,7 @@ int SocketEngine::DispatchEvents()
 		if (ev.events & EPOLLHUP)
 		{
 			stats.ErrorEvents++;
-			eh->HandleEvent(EVENT_ERROR, 0);
+			eh->OnEventHandlerError(0);
 			continue;
 		}
 
@@ -194,7 +194,7 @@ int SocketEngine::DispatchEvents()
 			int errcode;
 			if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
 				errcode = errno;
-			eh->HandleEvent(EVENT_ERROR, errcode);
+			eh->OnEventHandlerError(errcode);
 			continue;
 		}
 
@@ -215,7 +215,7 @@ int SocketEngine::DispatchEvents()
 		if (ev.events & EPOLLIN)
 		{
 			stats.ReadEvents++;
-			eh->HandleEvent(EVENT_READ);
+			eh->OnEventHandlerRead();
 			if (eh != GetRef(fd))
 				// whoa! we got deleted, better not give out the write event
 				continue;
@@ -223,7 +223,7 @@ int SocketEngine::DispatchEvents()
 		if (ev.events & EPOLLOUT)
 		{
 			stats.WriteEvents++;
-			eh->HandleEvent(EVENT_WRITE);
+			eh->OnEventHandlerWrite();
 		}
 	}
 
diff --git a/src/socketengines/socketengine_kqueue.cpp b/src/socketengines/socketengine_kqueue.cpp
index 8cc8a33f9..922cb7f2d 100644
--- a/src/socketengines/socketengine_kqueue.cpp
+++ b/src/socketengines/socketengine_kqueue.cpp
@@ -194,7 +194,7 @@ int SocketEngine::DispatchEvents()
 		if (kev.flags & EV_EOF)
 		{
 			stats.ErrorEvents++;
-			eh->HandleEvent(EVENT_ERROR, kev.fflags);
+			eh->OnEventHandlerError(kev.fflags);
 			continue;
 		}
 		if (filter == EVFILT_WRITE)
@@ -206,13 +206,13 @@ int SocketEngine::DispatchEvents()
 			 */
 			const int bits_to_clr = FD_WANT_SINGLE_WRITE | FD_WANT_FAST_WRITE | FD_WRITE_WILL_BLOCK;
 			eh->SetEventMask(eh->GetEventMask() & ~bits_to_clr);
-			eh->HandleEvent(EVENT_WRITE);
+			eh->OnEventHandlerWrite();
 		}
 		else if (filter == EVFILT_READ)
 		{
 			stats.ReadEvents++;
 			eh->SetEventMask(eh->GetEventMask() & ~FD_READ_WILL_BLOCK);
-			eh->HandleEvent(EVENT_READ);
+			eh->OnEventHandlerRead();
 		}
 	}
 
diff --git a/src/socketengines/socketengine_poll.cpp b/src/socketengines/socketengine_poll.cpp
index dc63fe0ed..5fd7e6235 100644
--- a/src/socketengines/socketengine_poll.cpp
+++ b/src/socketengines/socketengine_poll.cpp
@@ -185,7 +185,7 @@ int SocketEngine::DispatchEvents()
 
 		if (revents & POLLHUP)
 		{
-			eh->HandleEvent(EVENT_ERROR, 0);
+			eh->OnEventHandlerError(0);
 			continue;
 		}
 
@@ -196,14 +196,14 @@ int SocketEngine::DispatchEvents()
 			int errcode;
 			if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &errcode, &codesize) < 0)
 				errcode = errno;
-			eh->HandleEvent(EVENT_ERROR, errcode);
+			eh->OnEventHandlerError(errcode);
 			continue;
 		}
 
 		if (revents & POLLIN)
 		{
 			eh->SetEventMask(eh->GetEventMask() & ~FD_READ_WILL_BLOCK);
-			eh->HandleEvent(EVENT_READ);
+			eh->OnEventHandlerRead();
 			if (eh != GetRef(fd))
 				// whoops, deleted out from under us
 				continue;
@@ -217,7 +217,7 @@ int SocketEngine::DispatchEvents()
 
 			// The vector could've been resized, reference can be invalid by now; don't use it
 			events[index].events = mask_to_poll(mask);
-			eh->HandleEvent(EVENT_WRITE);
+			eh->eh->OnEventHandlerWrite();
 		}
 	}
 
diff --git a/src/socketengines/socketengine_ports.cpp b/src/socketengines/socketengine_ports.cpp
index 0d77954e4..d94d02664 100644
--- a/src/socketengines/socketengine_ports.cpp
+++ b/src/socketengines/socketengine_ports.cpp
@@ -160,14 +160,14 @@ int SocketEngine::DispatchEvents()
 		if (portev_events & POLLRDNORM)
 		{
 			stats.ReadEvents++;
-			eh->HandleEvent(EVENT_READ);
+			eh->OnEventHandlerRead();
 			if (eh != GetRef(fd))
 				continue;
 		}
 		if (portev_events & POLLWRNORM)
 		{
 			stats.WriteEvents++;
-			eh->HandleEvent(EVENT_WRITE);
+			eh->OnEventHandlerWrite();
 		}
 	}
 
diff --git a/src/socketengines/socketengine_select.cpp b/src/socketengines/socketengine_select.cpp
index f44346ad8..6dfbae88e 100644
--- a/src/socketengines/socketengine_select.cpp
+++ b/src/socketengines/socketengine_select.cpp
@@ -141,7 +141,7 @@ int SocketEngine::DispatchEvents()
 			if (getsockopt(i, SOL_SOCKET, SO_ERROR, (char*)&errcode, &codesize) < 0)
 				errcode = errno;
 
-			ev->HandleEvent(EVENT_ERROR, errcode);
+			ev->OnEventHandlerError(errcode);
 			continue;
 		}
 
@@ -149,7 +149,7 @@ int SocketEngine::DispatchEvents()
 		{
 			stats.ReadEvents++;
 			ev->SetEventMask(ev->GetEventMask() & ~FD_READ_WILL_BLOCK);
-			ev->HandleEvent(EVENT_READ);
+			ev->OnEventHandlerRead();
 			if (ev != GetRef(i))
 				continue;
 		}
@@ -160,7 +160,7 @@ int SocketEngine::DispatchEvents()
 			int newmask = (ev->GetEventMask() & ~(FD_WRITE_WILL_BLOCK | FD_WANT_SINGLE_WRITE));
 			SocketEngine::OnSetEvent(ev, ev->GetEventMask(), newmask);
 			ev->SetEventMask(newmask);
-			ev->HandleEvent(EVENT_WRITE);
+			ev->OnEventHandlerWrite();
 		}
 	}
 
diff --git a/src/threadengines/threadengine_pthread.cpp b/src/threadengines/threadengine_pthread.cpp
index fcb4db444..6456d6df5 100644
--- a/src/threadengines/threadengine_pthread.cpp
+++ b/src/threadengines/threadengine_pthread.cpp
@@ -72,18 +72,21 @@ class ThreadSignalSocket : public EventHandler
 		eventfd_write(fd, 1);
 	}
 
-	void HandleEvent(EventType et, int errornum)
+	void OnEventHandlerRead() CXX11_OVERRIDE
 	{
-		if (et == EVENT_READ)
-		{
-			eventfd_t dummy;
-			eventfd_read(fd, &dummy);
-			parent->OnNotify();
-		}
-		else
-		{
-			ServerInstance->GlobalCulls.AddItem(this);
-		}
+		eventfd_t dummy;
+		eventfd_read(fd, &dummy);
+		parent->OnNotify();
+	}
+
+	void OnEventHandlerWrite() CXX11_OVERRIDE
+	{
+		ServerInstance->GlobalCulls.AddItem(this);
+	}
+
+	void OnEventHandlerError(int errcode) CXX11_OVERRIDE
+	{
+		ThreadSignalSocket::OnEventHandlerWrite();
 	}
 };
 
@@ -122,18 +125,21 @@ class ThreadSignalSocket : public EventHandler
 		write(send_fd, &dummy, 1);
 	}
 
-	void HandleEvent(EventType et, int errornum)
+	void OnEventHandlerRead() CXX11_OVERRIDE
+	{
+		char dummy[128];
+		read(fd, dummy, 128);
+		parent->OnNotify();
+	}
+
+	void OnEventHandlerWrite() CXX11_OVERRIDE
+	{
+		ServerInstance->GlobalCulls.AddItem(this);
+	}
+
+	void OnEventHandlerError(int errcode) CXX11_OVERRIDE
 	{
-		if (et == EVENT_READ)
-		{
-			char dummy[128];
-			read(fd, dummy, 128);
-			parent->OnNotify();
-		}
-		else
-		{
-			ServerInstance->GlobalCulls.AddItem(this);
-		}
+		ThreadSignalSocket::OnEventHandlerWrite();
 	}
 };