MGR: async GUI RPCs: Fix RPC cancel, etc. for Windows.

svn path=/workspaces/charlief/; revision=15641

checkin_notes

@@ -5888,3 +5888,10 @@ Charlie 18 July 2008
     clientgui/
         AsyncRPC.cpp
         MainDocument.cpp,.h
+
+Charlie 21 July 2008
+    - MGR: async GUI RPCs: Fix RPC cancel, etc. for Windows. 
+        
+    clientgui/
+        AsyncRPC.cpp
+        MainDocument.cpp,.h

clientgui/AsyncRPC.cpp

@@ -79,6 +79,8 @@ RPCThread::RPCThread(CMainDocument *pDoc)
 
 
 void RPCThread::OnExit() {
+    // Tell CMainDocument that thread has gracefully ended 
+    m_Doc->m_RPCThread = NULL;
 }
 
 
@@ -233,6 +235,7 @@ int CMainDocument::RequestRPC(ASYNC_RPC_REQUEST& request) {
                 // start a new RPC thread.
                 if (current_rpc_request.isActive) {
                     current_rpc_request.isActive = false;
+                    m_RPCThread->Pause();   // Needed on Windows
                     rpc.close();
                     m_RPCThread->Kill();
                     m_RPCThread = NULL;
@@ -247,8 +250,9 @@ int CMainDocument::RequestRPC(ASYNC_RPC_REQUEST& request) {
                     m_RPCThread = new RPCThread(this);
                     wxASSERT(m_RPCThread);
                     retval2 = m_RPCThread->Create();
-                    wxASSERT(retval2);
-                    m_RPCThread->Run();
+                    wxASSERT(!retval2);
+                    retval2 = m_RPCThread->Run();
+                    wxASSERT(!retval2);
                 }
             }
             if (m_RPCWaitDlg) {
@@ -432,7 +436,7 @@ ALL_PROJECTS_LIST pl;
 
 void CMainDocument::TestAsyncRPC() {        // TEMPORARY FOR TESTING ASYNC RPCs -- CAF
     ASYNC_RPC_REQUEST request;
-    wxDateTime completionTime;
+    wxDateTime completionTime = wxDateTime((time_t)0);
     int retval = 0;
 
     completionTime.ResetTime();
@@ -450,7 +454,7 @@ void CMainDocument::TestAsyncRPC() {        // TEMPORARY FOR TESTING ASYNC RPCs
 
     retval = RequestRPC(request);
 
-    wxString s = completionTime.Format("%T");
+    wxString s = completionTime.Format("%X");
     printf("Completion time = %s\n", s.c_str());
     printf("RequestRPC returned %d\n", retval);
 }

clientgui/MainDocument.cpp

@@ -385,7 +385,7 @@ int CMainDocument::OnInit() {
     wxASSERT(m_RPCThread);
 
     iRetVal = m_RPCThread->Create();
-    wxASSERT(iRetVal);
+    wxASSERT(!iRetVal);
     
     m_RPCThread->Run();
 
@@ -403,6 +403,21 @@ int CMainDocument::OnExit() {
         m_pClientManager = NULL;
     }
 
+    if (m_RPCThread) {
+        m_RPCThread->Delete();
+        wxStopWatch ThreadDeleteTimer = wxStopWatch();
+        // RPC thread sets m_RPCThread to NULL when it exits
+        while (m_RPCThread) {
+            // Allow 5 seconds for RPC thread to exit gracefully
+           if (ThreadDeleteTimer.Time() > 5000) {
+                m_RPCThread->Pause();   // Needed on Windows
+                m_RPCThread->Kill();
+                break;
+            }
+        }
+        m_RPCThread = NULL;
+    }
+    
     if (m_pNetworkConnection) {
         delete m_pNetworkConnection;
         m_pNetworkConnection = NULL;

clientgui/MainDocument.h

@@ -169,12 +169,12 @@ public:
     void                        OnRPCComplete(CRPCFinishedEvent& event);
     ASYNC_RPC_REQUEST*          GetCurrentRPCRequest() { return &current_rpc_request; };
 void TestAsyncRPC();        // TEMPORARY -- CAF
+    RPCThread*                  m_RPCThread;
 #if USE_CRITICAL_SECTIONS_FOR_ASYNC_RPCS
     wxCriticalSection           m_critsect;
 #endif
 
 private:
-    RPCThread*                  m_RPCThread;
     ASYNC_RPC_REQUEST           current_rpc_request;
     AsyncRPCDlg*                m_RPCWaitDlg;
     std::vector<ASYNC_RPC_REQUEST> RPC_requests;