[libvirt] The quest for virStorageVolResize()

Hi everyone, In Boxes we'll need to change the size of the storage volumes (we use qcow2 files) but turns out that there is no virStorageVolResize() yet[1]. In my chat with Daniel on IRC, he mentioned that this would be a trivial task so I thought I should try to do it myself. I've been looking into this for several hours now and haven't gotten very far. I guess Daniel overestimated my skills of deciphering complicated code. :) Attached is my very much WIP patch that at least builds but doesn't exactly work yet: virsh # vol-resize 'Microsoft Windows XP.qcow2' '4G' gnome-boxes error: Failed to change size of volume 'Microsoft Windows XP.qcow2' to 4G error: this function is not supported by the connection driver: virStorageVolResize --------------------- If anyone can have a look and tell me if I'm going anywhere towards the right direction and what level of indirection I'm missing here, that would be awesome! -- Regards, Zeeshan Ali (Khattak) FSF member#5124 [1] Yes, I know there is a virDomainBlockResize but thats limited to running domains and I haven't yet figured if it can be nicely binded in libvirt-glib. Probably we'll want one function in libvirt-glib that will abstract both virDomainBlockResize() and virStorageVolResize().