1 files changed, 44 insertions, 55 deletions

diff --git a/source/OSSupport/SocketThreads.cpp b/source/OSSupport/SocketThreads.cpp
index ae23b4496..dd961770d 100644
--- a/source/OSSupport/SocketThreads.cpp
+++ b/source/OSSupport/SocketThreads.cpp
@@ -37,7 +37,7 @@ cSocketThreads::~cSocketThreads()
 
 
 
-bool cSocketThreads::AddClient(cSocket * a_Socket, cCallback * a_Client)
+bool cSocketThreads::AddClient(const cSocket & a_Socket, cCallback * a_Client)
 {
 	// Add a (socket, client) pair for processing, data from a_Socket is to be sent to a_Client
 	
@@ -71,6 +71,7 @@ bool cSocketThreads::AddClient(cSocket * a_Socket, cCallback * a_Client)
 
 
 
+/*
 void cSocketThreads::RemoveClient(const cSocket * a_Socket)
 {
 	// Remove the socket (and associated client) from processing
@@ -87,6 +88,7 @@ void cSocketThreads::RemoveClient(const cSocket * a_Socket)
 	// Cannot assert here, this may actually happen legally, since cClientHandle has to clean up the socket and it may have already closed in the meantime
 	// ASSERT(!"Removing an unknown socket");
 }
+*/
 
 
 
@@ -133,20 +135,13 @@ void cSocketThreads::NotifyWrite(const cCallback * a_Client)
 
 
 
-void cSocketThreads::Write(const cSocket * a_Socket, const AString & a_Data)
+void cSocketThreads::Write(const cCallback * a_Client, const AString & a_Data)
 {
-	// Puts a_Data into outgoing data queue for a_Socket
-	
-	if (!a_Socket->IsValid())
-	{
-		// Socket already closed, ignore the request
-		return;
-	}
-	
+	// Puts a_Data into outgoing data queue for a_Client
 	cCSLock Lock(m_CS);
 	for (cSocketThreadList::iterator itr = m_Threads.begin(); itr != m_Threads.end(); ++itr)
 	{
-		if ((*itr)->Write(a_Socket, a_Data))
+		if ((*itr)->Write(a_Client, a_Data))
 		{
 			return;
 		}
@@ -181,24 +176,20 @@ void cSocketThreads::StopReading(const cCallback * a_Client)
 
 
 /// Queues the socket for closing, as soon as its outgoing data is sent
-void cSocketThreads::QueueClose(const cSocket * a_Socket)
+void cSocketThreads::QueueClose(const cCallback * a_Client)
 {
-	if (!a_Socket->IsValid())
-	{
-		// Already closed, ignore the request
-		return;
-	}
+	LOGD("QueueClose(client %p)", a_Client);
 	
 	cCSLock Lock(m_CS);
 	for (cSocketThreadList::iterator itr = m_Threads.begin(); itr != m_Threads.end(); ++itr)
 	{
-		if ((*itr)->QueueClose(a_Socket))
+		if ((*itr)->QueueClose(a_Client))
 		{
 			return;
 		}
 	}  // for itr - m_Threads[]
 	
-	ASSERT(!"Queueing close of an unknown socket");
+	ASSERT(!"Queueing close of an unknown client");
 }
 
 
@@ -240,13 +231,15 @@ cSocketThreads::cSocketThread::~cSocketThread()
 
 
 
-void cSocketThreads::cSocketThread::AddClient(cSocket * a_Socket, cCallback * a_Client)
+void cSocketThreads::cSocketThread::AddClient(const cSocket & a_Socket, cCallback * a_Client)
 {
 	ASSERT(m_NumSlots < MAX_SLOTS);  // Use HasEmptySlot() to check before adding
 	
 	m_Slots[m_NumSlots].m_Client = a_Client;
 	m_Slots[m_NumSlots].m_Socket = a_Socket;
 	m_Slots[m_NumSlots].m_Outgoing.clear();
+	m_Slots[m_NumSlots].m_ShouldClose = false;
+	m_Slots[m_NumSlots].m_ShouldCallClient = true;
 	m_NumSlots++;
 	
 	// Notify the thread of the change:
@@ -297,7 +290,7 @@ bool cSocketThreads::cSocketThread::RemoveSocket(const cSocket * a_Socket)
 
 	for (int i = m_NumSlots - 1; i >= 0 ; --i)
 	{
-		if (m_Slots[i].m_Socket != a_Socket)
+		if (m_Slots[i].m_Socket != *a_Socket)
 		{
 			continue;
 		}
@@ -339,7 +332,7 @@ bool cSocketThreads::cSocketThread::HasSocket(const cSocket * a_Socket) const
 {
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (m_Slots[i].m_Socket->GetSocket() == a_Socket->GetSocket())
+		if (m_Slots[i].m_Socket == *a_Socket)
 		{
 			return true;
 		}
@@ -367,12 +360,12 @@ bool cSocketThreads::cSocketThread::NotifyWrite(const cCallback * a_Client)
 
 
 
-bool cSocketThreads::cSocketThread::Write(const cSocket * a_Socket, const AString & a_Data)
+bool cSocketThreads::cSocketThread::Write(const cCallback * a_Client, const AString & a_Data)
 {
 	// Returns true if socket handled by this thread
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (m_Slots[i].m_Socket == a_Socket)
+		if (m_Slots[i].m_Client == a_Client)
 		{
 			m_Slots[i].m_Outgoing.append(a_Data);
 			
@@ -397,13 +390,7 @@ bool cSocketThreads::cSocketThread::StopReading (const cCallback * a_Client)
 	{
 		if (m_Slots[i].m_Client == a_Client)
 		{
-			m_Slots[i].m_Client = NULL;
-			m_Slots[i].m_ShouldClose = false;
-
-			// Notify the thread that there's a stop reading request:
-			ASSERT(m_ControlSocket2.IsValid());
-			m_ControlSocket2.Send("s", 1);
-			
+			m_Slots[i].m_ShouldCallClient = false;
 			return true;
 		}
 	}  // for i - m_Slots[]
@@ -414,14 +401,13 @@ bool cSocketThreads::cSocketThread::StopReading (const cCallback * a_Client)
 
 
 
-bool cSocketThreads::cSocketThread::QueueClose(const cSocket * a_Socket)
+bool cSocketThreads::cSocketThread::QueueClose(const cCallback * a_Client)
 {
 	// Returns true if socket handled by this thread
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (m_Slots[i].m_Socket == a_Socket)
+		if (m_Slots[i].m_Client == a_Client)
 		{
-			ASSERT(m_Slots[i].m_Client == NULL);  // Should have stopped reading first
 			m_Slots[i].m_ShouldClose = true;
 
 			// Notify the thread that there's a close queued (in case its conditions are already met):
@@ -561,11 +547,11 @@ void cSocketThreads::cSocketThread::PrepareSet(fd_set * a_Set, cSocket::xSocket
 	cCSLock Lock(m_Parent->m_CS);
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (!m_Slots[i].m_Socket->IsValid())
+		if (!m_Slots[i].m_Socket.IsValid())
 		{
 			continue;
 		}
-		cSocket::xSocket s = m_Slots[i].m_Socket->GetSocket();
+		cSocket::xSocket s = m_Slots[i].m_Socket.GetSocket();
 		FD_SET(s, a_Set);
 		if (s > a_Highest)
 		{
@@ -593,24 +579,24 @@ void cSocketThreads::cSocketThread::ReadFromSockets(fd_set * a_Read)
 	cCSLock Lock(m_Parent->m_CS);
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (!FD_ISSET(m_Slots[i].m_Socket->GetSocket(), a_Read))
+		if (!FD_ISSET(m_Slots[i].m_Socket.GetSocket(), a_Read))
 		{
 			continue;
 		}
 		char Buffer[1024];
-		int Received = m_Slots[i].m_Socket->Receive(Buffer, ARRAYCOUNT(Buffer), 0);
+		int Received = m_Slots[i].m_Socket.Receive(Buffer, ARRAYCOUNT(Buffer), 0);
 		if (Received == 0)
 		{
 			// The socket has been closed by the remote party, close our socket and let it be removed after we process all reading
-			m_Slots[i].m_Socket->CloseSocket();
-			if (m_Slots[i].m_Client != NULL)
+			m_Slots[i].m_Socket.CloseSocket();
+			if (m_Slots[i].m_ShouldCallClient)
 			{
 				m_Slots[i].m_Client->SocketClosed();
 			}
 		}
 		else if (Received > 0)
 		{
-			if (m_Slots[i].m_Client != NULL)
+			if (m_Slots[i].m_ShouldCallClient)
 			{
 				m_Slots[i].m_Client->DataReceived(Buffer, Received);
 			}
@@ -618,8 +604,8 @@ void cSocketThreads::cSocketThread::ReadFromSockets(fd_set * a_Read)
 		else
 		{
 			// The socket has encountered an error, close it and let it be removed after we process all reading
-			m_Slots[i].m_Socket->CloseSocket();
-			if (m_Slots[i].m_Client != NULL)
+			m_Slots[i].m_Socket.CloseSocket();
+			if (m_Slots[i].m_ShouldCallClient)
 			{
 				m_Slots[i].m_Client->SocketClosed();
 			}
@@ -637,38 +623,41 @@ void cSocketThreads::cSocketThread::WriteToSockets(fd_set * a_Write)
 	cCSLock Lock(m_Parent->m_CS);
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		cSocket Socket(*(m_Slots[i].m_Socket));
-		if (!Socket.IsValid() || !FD_ISSET(Socket.GetSocket(), a_Write))
+		if (!m_Slots[i].m_Socket.IsValid() || !FD_ISSET(m_Slots[i].m_Socket.GetSocket(), a_Write))
 		{
 			continue;
 		}
 		if (m_Slots[i].m_Outgoing.empty())
 		{
 			// Request another chunk of outgoing data:
-			if (m_Slots[i].m_Client != NULL)
+			if (m_Slots[i].m_ShouldCallClient)
 			{
 				m_Slots[i].m_Client->GetOutgoingData(m_Slots[i].m_Outgoing);
 			}
 			if (m_Slots[i].m_Outgoing.empty())
 			{
 				// Nothing ready
-				if ((m_Slots[i].m_Client == NULL) && m_Slots[i].m_ShouldClose)
+				if (m_Slots[i].m_ShouldClose)
 				{
 					// Socket was queued for closing and there's no more data to send, close it now:
-					m_Slots[i].m_Socket->CloseSocket();
-					m_Slots[i] = m_Slots[--m_NumSlots];
+					
+					// DEBUG
+					LOGD("Socket was queued for closing, closing now. Slot %d, client %p, socket %d", i, m_Slots[i].m_Client, m_Slots[i].m_Socket.GetSocket());
+					
+					m_Slots[i].m_Socket.CloseSocket();
+					// The slot must be freed actively by the client, using RemoveClient()
 				}
 				continue;
 			}
 		}  // if (outgoing data is empty)
 		
-		int Sent = m_Slots[i].m_Socket->Send(m_Slots[i].m_Outgoing.data(), m_Slots[i].m_Outgoing.size());
+		int Sent = m_Slots[i].m_Socket.Send(m_Slots[i].m_Outgoing.data(), m_Slots[i].m_Outgoing.size());
 		if (Sent < 0)
 		{
 			int Err = cSocket::GetLastError();
-			LOGWARNING("Error %d while writing to client \"%s\", disconnecting. \"%s\"", Err, m_Slots[i].m_Socket->GetIPString().c_str(), cSocket::GetErrorString(Err).c_str());
-			m_Slots[i].m_Socket->CloseSocket();
-			if (m_Slots[i].m_Client != NULL)
+			LOGWARNING("Error %d while writing to client \"%s\", disconnecting. \"%s\"", Err, m_Slots[i].m_Socket.GetIPString().c_str(), cSocket::GetErrorString(Err).c_str());
+			m_Slots[i].m_Socket.CloseSocket();
+			if (m_Slots[i].m_ShouldCallClient)
 			{
 				m_Slots[i].m_Client->SocketClosed();
 			}
@@ -695,12 +684,12 @@ void cSocketThreads::cSocketThread::WriteToSockets(fd_set * a_Write)
 
 void cSocketThreads::cSocketThread::RemoveClosedSockets(void)
 {
-	// Removes sockets that have closed from m_Slots[]
+	// Removes sockets that have been queued for closing from m_Slots[]
 	
 	cCSLock Lock(m_Parent->m_CS);
 	for (int i = m_NumSlots - 1; i >= 0; --i)
 	{
-		if (m_Slots[i].m_Socket->IsValid())
+		if (!m_Slots[i].m_ShouldClose || !m_Slots[i].m_Outgoing.empty())
 		{
 			continue;
 		}