Use QMutexLocker in Qt driver. RAII is always better than managing resources by hand.
Index: qt.cpp =================================================================== --- qt.cpp (revision 10054) +++ qt.cpp (working copy) @@ -32,6 +32,7 @@ #include "qt.h" +#include <QMutexLocker> // global variables initialised in init(), used in tidy() // QApplication* app=NULL; @@ -82,7 +83,7 @@ bool initQtApp(bool isGUI) { - QtPLDriver::mutex.lock(); + QMutexLocker locker(&QtPLDriver::mutex); bool res=false; ++appCounter; if(qApp==NULL && appCounter==1) @@ -96,13 +97,12 @@ new QApplication(argc, argv, isGUI); res=true; } - QtPLDriver::mutex.unlock(); return res; } void closeQtApp() { - QtPLDriver::mutex.lock(); + QMutexLocker locker(&QtPLDriver::mutex); --appCounter; if(qApp!=NULL && appCounter==0) { @@ -112,7 +112,6 @@ delete[] argv; argv=NULL; } - QtPLDriver::mutex.unlock(); } /*--------------------------------------------------------------------- -- main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if (j){printf("%d\n",i);}}} /*Dmitri Gribenko <griboz...@gmail.com>*/ ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel