search for: geadddevice2

...e a pDevDesc structure that gets passed to GECreateDevDesc. ..elided... pDevDesc dev; /* Allocate and initialize the device driver data */ if (!(dev = (pDevDesc) calloc(1, sizeof(DevDesc)))) return 0; /* or error() */ /* set up device driver or free ?dev? and error() */ gdd = GEcreateDevDesc(dev); GEaddDevice2(gdd, "dev_name"); ...elided... which indicates to me that the calling code owns the pDevDesc structure and should be responsible for freeing it. However, in GEdestroyDevDesc, that particular code calls free(dd->dev), freeing the pointer. In my case, I have a device implemented and cr...

..., canvascolor, sfonts, res, > xpos, ypos, title, useCairo, antialias, family)) { > free(dev); > errorcall(call, _("unable to start device %s"), devname); > } > dd = GEcreateDevDesc(dev); > GEaddDevice2(dd, devname); > > i.e., we start the device driver, and if it fails, we throw away the "dev" structure and call it a day. If it succeeds, we proceed to create a device descriptor structure and add it to the list of open devices. > > This approach means that X11DeviceDriver()...

...xpos, ypos, title, useCairo, antialias, family)) { >>> free(dev); >>> errorcall(call, _("unable to start device %s"), devname); >>> } >>> dd = GEcreateDevDesc(dev); >>> GEaddDevice2(dd, devname); >>> i.e., we start the device driver, and if it fails, we throw away the "dev" structure and call it a day. If it succeeds, we proceed to create a device descriptor structure and add it to the list of open devices. >>> This approach means that X11DeviceDriv...

...bgcolor, canvascolor, sfonts, res, xpos, ypos, title, useCairo, antialias, family)) { free(dev); errorcall(call, _("unable to start device %s"), devname); } dd = GEcreateDevDesc(dev); GEaddDevice2(dd, devname); i.e., we start the device driver, and if it fails, we throw away the "dev" structure and call it a day. If it succeeds, we proceed to create a device descriptor structure and add it to the list of open devices. This approach means that X11DeviceDriver() cannot do anything...

...nts, res, >> xpos, ypos, title, useCairo, antialias, family)) { >> free(dev); >> errorcall(call, _("unable to start device %s"), devname); >> } >> dd = GEcreateDevDesc(dev); >> GEaddDevice2(dd, devname); >> i.e., we start the device driver, and if it fails, we throw away the "dev" structure and call it a day. If it succeeds, we proceed to create a device descriptor structure and add it to the list of open devices. >> This approach means that X11DeviceDriver() can...

Thanks Professor Dalgard. If you have a different way to fix the bug then I'd be happy to test it. Or whatever. I understand that maybe some data was being referenced before it had been initialized. I could also support moving the R_ProcessEvents call in another place, but it seems one would also like to generate some kind of warning message, at the location of the bad reference, rather than