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mirror of https://gitlab.com/libvirt/libvirt.git synced 2025-03-11 00:58:38 +03:00
Daniel P. Berrangé d2e5aa4f4e util: introduce object for holding a system inhibitor lock
The system inhibitor locks are currently handled by code in the
virNetDaemon class. The driver code invokes a callback provided
by the daemon when it wants to start or end inhibition.

When the first inhibition is started, the daemon will call out
to logind to apply it system wide.

This has many flaws

 * A single message is registered with logind regardless of
   what driver holds the inhibition
 * An inhibition of daemon shutdown can't be acquired
   without also inhibiting system shutdown
 * Config of the inhibitions cannot be tailored by the
   driver

The new virInhibitor object addresses these:

 * The object directly manages an inhibition with logind
   privately to the driver, enabling custom messages to
   be set.
 * It is possible to acquire an inhibition locally to the
   daemon without forwarding it to logind.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-19 18:03:04 +00:00
2019-05-31 17:54:28 +02:00
2024-11-12 11:00:26 +01:00
2019-09-06 12:47:46 +02:00
2022-03-17 14:33:12 +01:00
2023-12-05 11:48:28 +01:00
2020-08-03 09:26:48 +02:00
2019-10-18 17:32:52 +02:00
2015-06-16 13:46:20 +02:00
2024-09-24 08:24:00 +02:00
2024-12-02 13:20:38 +01:00

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==============================
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:

https://libvirt.org


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 2.0 (or later). See the files ``COPYING.LESSER``
and ``COPYING`` for full license terms & conditions.


Installation
============

Instructions on building and installing libvirt can be found on the website:

https://libvirt.org/compiling.html

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:

* users@lists.libvirt.org (**for user discussions**)
* devel@lists.libvirt.org (**for development only**)

Further details on contacting the project are available on the website:

https://libvirt.org/contact.html
Description
Libvirt native C API and daemons
Readme 677 MiB
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