Restore socket initialization times counter.

The change of the counter to a simple boolean in r61985 broke the code which
called both Initialize() and Shutdown() multiple (but the same number of)
times. As this is the documented correct behaviour, restore the counter to
cater for it even if we don't really need it any longer.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61998 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/common/socket.cpp b/src/common/socket.cpp
index fb18c2e341b512a00a5caf152796a86769e75865..923dff0d490483b0af896cfb918b2203f35157d4 100644 (file)
--- a/src/common/socket.cpp
+++ b/src/common/socket.cpp
@@ -753,8 +753,11 @@ int wxSocketImpl::Write(const void *buffer, int size)
 namespace
 {
 
-// flag indicating whether wxSocketManager was already initialized
-bool gs_socketInitDone = false;
+// counts the number of calls to Initialize() minus the number of calls to
+// Shutdown(): we don't really need it any more but it was documented that
+// Shutdown() must be called the same number of times as Initialize() and using
+// a counter helps us to check it
+int gs_socketInitCount = 0;
 
 } // anonymous namespace
 
@@ -762,7 +765,7 @@ bool wxSocketBase::IsInitialized()
 {
     wxASSERT_MSG( wxIsMainThread(), "unsafe to call from other threads" );
 
-    return gs_socketInitDone;
+    return gs_socketInitCount != 0;
 }
 
 bool wxSocketBase::Initialize()
@@ -770,15 +773,15 @@ bool wxSocketBase::Initialize()
     wxCHECK_MSG( wxIsMainThread(), false,
                  "must be called from the main thread" );
 
-    if ( !gs_socketInitDone )
+    if ( !gs_socketInitCount )
     {
         wxSocketManager * const manager = wxSocketManager::Get();
         if ( !manager || !manager->OnInit() )
             return false;
-
-        gs_socketInitDone = true;
     }
 
+    gs_socketInitCount++;
+
     return true;
 }
 
@@ -786,14 +789,15 @@ void wxSocketBase::Shutdown()
 {
     wxCHECK_RET( wxIsMainThread(), "must be called from the main thread" );
 
-    wxCHECK_RET( gs_socketInitDone, "unnecessary call to Shutdown()" );
+    wxCHECK_RET( gs_socketInitCount > 0, "too many calls to Shutdown()" );
 
-    gs_socketInitDone = false;
-
-    wxSocketManager * const manager = wxSocketManager::Get();
-    wxCHECK_RET( manager, "should have a socket manager" );
+    if ( !--gs_socketInitCount )
+    {
+        wxSocketManager * const manager = wxSocketManager::Get();
+        wxCHECK_RET( manager, "should have a socket manager" );
 
-    manager->OnExit();
+        manager->OnExit();
+    }
 }
 
 // --------------------------------------------------------------------------