Looking at the source code, I am somewhat convinced that the functionality I am looking for would be implemented around
here. Please correct me if I am wrong, but because there does not seem to be error handling code here or anywhere else that I've looked, I am somewhat convinced it does not exist.
If there is not currently a way to cause the application to die on full disk, a flag could be added that would cause glog to throw an exception if the disk is full. Such an implementation should not be too hard to add.