Added YieldIfNeeded

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9452 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/os2/app.cpp b/src/os2/app.cpp
index 2260c6d2c675d5337e9d3da2ca3512e61fce4559..40ef90f53a65c063e333dc5ada8aaf323cf736ca 100644 (file)
--- a/src/os2/app.cpp
+++ b/src/os2/app.cpp
@@ -962,6 +962,8 @@ void wxExit()
     wxApp::CleanUp();
 } // end of wxExit
 
     wxApp::CleanUp();
 } // end of wxExit
 

+static bool gs_inYield = FALSE;
+

 //
 // Yield to incoming messages
 //
 //
 // Yield to incoming messages
 //


@@ -976,6 +978,8 @@ bool wxYield()
     //
     wxLog::Suspend();
 
     //
     wxLog::Suspend();
 

+    gs_inYield = TRUE;
+

     //
     // We want to go back to the main message loop
     // if we see a WM_QUIT. (?)
     //
     // We want to go back to the main message loop
     // if we see a WM_QUIT. (?)


@@ -998,9 +1002,19 @@ bool wxYield()
     // Let the logs be flashed again
     //
     wxLog::Resume();
     // Let the logs be flashed again
     //
     wxLog::Resume();

+    gs_inYield = FALSE;

     return TRUE;
 } // end of wxYield
 
     return TRUE;
 } // end of wxYield
 

+// Yield to incoming messages; but fail silently if recursion is detected.
+bool wxYieldIfNeeded()
+{
+    if (gs_inYield)
+        return FALSE;
+        
+    return wxYield();
+}
+

 wxIcon wxApp::GetStdIcon(
   int                               nWhich
 ) const
 wxIcon wxApp::GetStdIcon(
   int                               nWhich
 ) const