On Wed, Nov 15, 2017 at 02:59:20PM +0000, Daniel P. Berrange wrote: > On Wed, Nov 15, 2017 at 12:28:30PM +0100, Bjoern Walk wrote: > > Why has there never been a truly satisfying standard library for C for > > this kind of stuff? If such a project would exist, this wheel > > re-inventing would be prevented while providing a higher-quality code > > for platform library code. > > There are countless "standard" libraries all with their own quirks. Many > of them don't even really address the core safety problems. eg we could > consider glib2 for libvirt, but it just replicates the same awful unsafe > malloc API style that the stdc lib has, with marginal improvement. I think you should look at pool allocators. I really wish I'd used one in libguestfs ... Pool allocators give you a nice middle ground between using C and having something which looks and feels a lot like garbage collection. Pool allocators also fit nicely to servers because it's natural to create a new pool for each request and then free everything in the pool at the end of the request. You can also attach pools to other concepts (in libvirtd that would include per-VM pools). Luckily there is now a widely available pool allocator (widely available because it's used/required by SAMBA): https://talloc.samba.org/talloc/doc/html/index.html Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
