I don't understand what the original author

[wxWidgets.git] / src / msw / dialup.cpp

diff --git a/src/msw/dialup.cpp b/src/msw/dialup.cpp
index 8cb950ef6b29e63a3ad9db01c45164eea9be7439..cf182fb87a25ddb965de1c71a10c88327a3b77cd 100644 (file)
--- a/src/msw/dialup.cpp
+++ b/src/msw/dialup.cpp
@@ -50,7 +50,7 @@ DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
 
 // Doesn't yet compile under VC++ 4, BC++, Watcom C++,
 // Wine: no wininet.h
-#if !defined(__BORLANDC__) && \
+#if (!defined(__BORLANDC__) || (__BORLANDC__>=0x550)) && \
     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
     !defined(__GNUWIN32_OLD__) && \
     !defined(__WATCOMC__) && \
@@ -204,6 +204,10 @@ private:
     // destroy the thread data and the thread itself
     void CleanUpThreadData();
 
+    // number of times EnableAutoCheckOnlineStatus() had been called minus the
+    // number of times DisableAutoCheckOnlineStatus() had been called
+    int m_autoCheckLevel;
+
     // timer used for polling RAS status
     class WXDLLEXPORT RasTimer : public wxTimer
     {
@@ -215,6 +219,8 @@ private:
 
     private:
         wxDialUpManagerMSW *m_dialUpManager;
+
+        DECLARE_NO_COPY_CLASS(RasTimer)
     } m_timerStatusPolling;
 
     // thread handle for the thread sitting on connection change event
@@ -264,6 +270,8 @@ private:
 
     // this flag tells us whether a call to RasDial() is in progress
     static wxDialUpManagerMSW *ms_dialer;
+
+    DECLARE_NO_COPY_CLASS(wxDialUpManagerMSW)
 };
 
 // ----------------------------------------------------------------------------
@@ -335,6 +343,7 @@ wxDialUpManagerMSW::wxDialUpManagerMSW()
                     m_dllRas(_T("RASAPI32"))
 {
     // initialize our data
+    m_autoCheckLevel = 0;
     m_hThread = 0;
 
     if ( !m_dllRas.IsLoaded() )
@@ -957,6 +966,12 @@ bool wxDialUpManagerMSW::IsOnline() const
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 
+    if ( IsAlwaysOnline() )
+    {
+        // always => now
+        return true;
+    }
+
     if ( ms_userSpecifiedOnlineStatus != -1 )
     {
         // user specified flag overrides our logic
@@ -980,6 +995,12 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 
+    if ( m_autoCheckLevel++ )
+    {
+        // already checking
+        return TRUE;
+    }
+
     bool ok = ms_pfnRasConnectionNotification != 0;
 
     if ( ok )
@@ -990,22 +1011,13 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
         // first, see if we don't have this thread already running
         if ( m_hThread != 0 )
         {
-            DWORD dwSuspendCount = 2;
-            while ( dwSuspendCount > 1 )
-            {
-                dwSuspendCount = ResumeThread(m_hThread);
-                if ( dwSuspendCount == (DWORD)-1 )
-                {
-                    wxLogLastError(wxT("ResumeThread(RasThread)"));
+            if ( ::ResumeThread(m_hThread) != (DWORD)-1 )
+                return TRUE;
 
-                    ok = FALSE;
-                }
-            }
+            // we're leaving a zombie thread... but what else can we do?
+            wxLogLastError(wxT("ResumeThread(RasThread)"));
 
-            if ( ok )
-            {
-                return TRUE;
-            }
+            ok = FALSE;
         }
     }
 
@@ -1063,13 +1075,7 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
         }
 
         // and subclass it
-        FARPROC windowProc = MakeProcInstance
-                             (
-                              (FARPROC)wxRasStatusWindowProc,
-                              wxGetInstance()
-                             );
-
-        ::SetWindowLong(ms_hwndRas, GWL_WNDPROC, (LONG) windowProc);
+        wxSetWindowProc(ms_hwndRas, wxRasStatusWindowProc);
     }
 
     m_data.hWnd = ms_hwndRas;
@@ -1138,6 +1144,12 @@ void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
 {
     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
 
+    if ( --m_autoCheckLevel )
+    {
+        // still checking
+        return;
+    }
+
     if ( m_hThread )
     {
         // we have running secondary thread, it's just enough to suspend it
@@ -1236,7 +1248,7 @@ static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
     return 0;
 }
 
-static void WINAPI wxRasDialFunc(UINT unMsg,
+static void WINAPI wxRasDialFunc(UINT WXUNUSED(unMsg),
                                  RASCONNSTATE rasconnstate,
                                  DWORD dwError)
 {