wxgui: Runs games. 'nuff said.

* Fixed some deadlock conditions by adding a message pump to semaphore waits ont he main/gui thread.
 * Many more config and init bugfixes.
 * Implemented most of the new Boot menu.

git-svn-id: http://pcsx2.googlecode.com/svn/branches/wxgui@1745 96395faa-99c1-11dd-bbfe-3dabce05a288

common/src/Utilities/ThreadTools.cpp

@@ -20,6 +20,8 @@
 #include "Threading.h"
 
 #include <wx/datetime.h>
+#include <wx/thread.h>
+#include <wx/app.h>
 
 #ifdef __LINUX__
 #	include <signal.h>		// for pthread_kill, which is in pthread.h on w32-pthreads
@@ -245,6 +247,28 @@ namespace Threading
 	}
 #endif
 
+#if wxUSE_GUI
+	// This is a wxApp-safe implementation of Wait, which makes sure and executes the App's
+	// pending messages *if* the Wait is performed on the Main/GUI thread.  If the Wait is
+	// called from another thread, no message pumping is performed.
+	void Semaphore::WaitGui()
+	{
+		if( !wxThread::IsMain() || (wxTheApp == NULL) )
+			Wait();
+		else
+		{
+			// In order to avoid deadlock we need to make sure we cut some time
+			// to handle messages.  I choose 200ms:
+			
+			static const timespec fail = { 0, 200 * 1000000 };
+			do {
+				
+				wxTheApp->ProcessPendingEvents();
+			} while( sem_timedwait( &sema, &fail ) == ETIMEDOUT );
+		}
+	}
+#endif
+
 	void Semaphore::Wait()
 	{
 		sem_wait( &sema );