On 05/21/2014 07:24 AM, Anshul Makkar wrote: > Hi, > > Doesn't there exist a common header file for all the return codes. In the > code I can see return values as 0, -1 etc.
Most functions that flag failure via the return value do so by returning merely 0 or -1. There's a few that return 0 or -errno. More often, instead of encoding error categories into a return value, we instead prefer to use the QAPI error type 'struct Error' (see include/qapi/error.h), which has categories for the few places where it is needed, along with utility functions for setting error messages. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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