c555ec2416
Right now, snapshot_conf.h is rather large - it deals with three separate types: virDomainSnapshotDef (the snapshot definition as it maps to XML), virDomainSnapshotObj (an object containing a def and the relationship to other snapshots), and virDomainSnapshotObjList (a list of snapshot objects), where two of the three types are currently public rather than opaque. What's more, the types are circular: a snapshot def includes a virDomainPtr, which contains a snapshot list, which includes a snapshot object, which includes a snapshot def. In order to split the three objects into separate files, while still allowing each header to use sane typedefs to incomplete pointers, the obvious solution is to lift the typedefs into yet another header, with no other dependencies. Start the split by factoring out all struct typedefs from domain_conf.h (enum typedefs don't get used in function signatures, and function typedefs tend not to suffer from circular referencing, so those stay put). The only other exception is virDomainStateReason, which is only ever used directly rather than via a pointer. This patch is just straight code motion (all typedefs are listed in the same order before and after the patch); a later patch will sort things for legibility. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Libvirt API for virtualization
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser General
Public License, version 2.1 (or later). Some parts of the code that are
not part of the C library may have the more restrictive GNU General
Public License, version 2.1 (or later). See the files COPYING.LESSER
and COPYING for full license terms & conditions.
Installation
Libvirt uses the GNU Autotools build system, so in general can be built and installed with the usual commands. For example, to build in a manner that is suitable for installing as root, use:
$ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var
$ make
$ sudo make install
While to build & install as an unprivileged user
$ ./configure --prefix=$HOME/usr
$ make
$ make install
The libvirt code relies on a large number of 3rd party libraries. These will
be detected during execution of the configure script and a summary printed
which lists any missing (optional) dependencies.
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: