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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.
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Stefan Bader 26e9ef4762 xend_internal: Use domain/status for shutdown check 
On newer xend (v3.x and after) there is no state and domid reported
for inactive domains. When initially creating connections this is
handled in various places by assigning domain->id = -1.
But once an instance has been running, the id is set to the current
domain id. And it does not change when the instance is shut down.
So when querying the domain info, the hypervisor driver, which gets
asked first will indicate it cannot find information, then the
xend driver is asked and will set the status to NOSTATE because it
checks for the -1 domain id.
Checking domain/status for 0 seems to be more reliable for that.

One note: I am not sure whether the domain->id also should get set
back to -1 whenever any sub-driver thinks the instance is no longer
running.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=746007
BugLink: http://bugs.launchpad.net/bugs/929626

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2012-04-12 17:09:01 -06:00
.gnulib@d5612c714c build: prohibit cross-inclusion 2012-03-02 06:22:43 -07:00
daemon daemon: Plug memory leaks 2012-04-12 17:30:49 +08:00
docs Fix parallel build in docs/ directory 2012-04-04 14:33:27 +01:00
examples Revert "Refactor the libvirt RPM daemon pieces" 2012-04-03 14:49:31 +08:00
gnulib build: fix mingw ssize_t, syntax check 2012-03-30 11:10:54 -06:00
include blockjob: add API for async virDomainBlockJobAbort 2012-04-11 20:52:18 -06:00
m4 Enable all warnings permanently & default to -Werror for GIT builds 2012-03-27 17:08:06 +01:00
po daemon: Add libvirtd-config.c to the list of files to translate 2012-04-10 09:51:51 -06:00
python Fix compilation error on 32bit 2012-04-10 06:24:03 -04:00
src xend_internal: Use domain/status for shutdown check 2012-04-12 17:09:01 -06:00
tests tests: Fix libvirtdconftest in VPATH build 2012-04-11 09:57:21 +02:00
tools blockjob: add API for async virDomainBlockJobAbort 2012-04-11 20:52:18 -06:00
.dir-locals.el maint: let emacs avoid tabs in rng files 2011-08-13 08:56:26 -06:00
.gitignore Replace daemon-conf test script with a proper test case 2012-04-10 11:13:44 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: prune duplicate listings in AUTHORS 2012-02-03 09:56:45 -07:00
AUTHORS UML: fix iteration over consoles 2012-04-09 10:21:07 -06:00
autobuild.sh Enable all warnings permanently & default to -Werror for GIT builds 2012-03-27 17:08:06 +01:00
autogen.sh build: allow for local gnulib diffs 2011-11-09 09:03:33 -07:00
bootstrap build: update to latest gnulib 2012-02-29 10:27:40 -07:00
bootstrap.conf Pull in GNULIB regex module for benefit of test suite on Win32 2012-04-04 14:33:27 +01:00
cfg.mk build: fix mingw ssize_t, syntax check 2012-03-30 11:10:54 -06:00
ChangeLog-old virterror.c: Fix several spelling mistakes 2012-02-03 11:32:51 -07:00
configure.ac Don't install sysctl file on non-Linux hosts 2012-04-04 19:31:40 +01:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING Document STREQ_NULLABLE and STRNEQ_NULLABLE 2011-10-06 16:50:38 +02:00
libvirt.pc.in Fix typos in API XML file paths 2012-02-15 11:29:38 +00:00
libvirt.spec.in Fix initial hypervisor conditionals 2012-04-04 10:54:20 +01:00
Makefile.am maint: add missing copyright notices 2011-07-28 15:01:17 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in Fix typos in API XML file paths 2012-02-15 11:29:38 +00:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>