Hi George, The effect of removing the _log<<message suggests to me that the MS implementation does something odd making it unreliable when being called from multiple threads. Try replacing the _log<<message with a fprintf or equivalent C function to see if that helps.
Robert. On 29 November 2011 11:38, George Bekos <[email protected]> wrote: > Hello Robert, > > Thank you very much for your reply. I did remove the "_log << message;" line > and the problem goes away. When I get the crush, in which VStudio reports > heap corruption, I use the debugger to have a look at the corrupted memory > block, and it always points to some region where the notice strings are > saved. In my program I do not do anything fancy. It is an extremely simple > case: > > Code: > > #include <cstdlib> > #include <osg/Group> > #include <osgViewer/Viewer> > #include "LogFileHandler.h" > // --------------------------------------------------------------------- > class MyUpdateCallback : public osg::NodeCallback > { > virtual void operator()( osg::Node* node, osg::NodeVisitor* nv) { > for(size_t i = 0; i < 1000; ++i) { > osg::notify( osg::NOTICE ) << "hello!";// << std::endl; > } > } > }; > // --------------------------------------------------------------------- > int main( int agc, char** argv ) > { > osg::setNotifyLevel(osg::DEBUG_FP); > osg::Group* root = new osg::Group(); > LogFileHandler* fileHandler = new LogFileHandler("log.txt"); > osg::setNotifyHandler(fileHandler); > root->setUpdateCallback(new MyUpdateCallback()); > osgViewer::Viewer viewer; > viewer.setSceneData(root); > viewer.setUpViewInWindow(50,50,800,600); > viewer.run(); > return EXIT_SUCCESS; > } > > > > > When I check the corrupted memory block sometimes I see something like > "hello!!hello!!hel«««««þîþîþ......þîþþîþþîþþîþ". Which looks corrupted to me. > If I add an std::endl at the end of my message in the above callback the > problem still appears but not very often. I have tried this program on 2 > different PCs but both of them had windows7x64. I checked my lib and dll > files, I do not mix release and debug builds. The problem is very strange... > I guess I am missing something. > > Thanks for your help! > > Cheers, > George > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=44106#44106 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
