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The event namespace concept is mostly redundant information.
With the re-written dispatcher, the namespace is only used
for equality comparisons between event IDs. This can be solved
by just comparing virClassPtr instances instead.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Instead of having the object event code have to know about each
type of event and their dispatch functions, associate a dispatch
function with the object instance. The dispatch code can thus be
significantly simplified.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Inject a virNetworkEvent class between virObjectEvent
and virNetworkEventLifecycle to mirror virDomainEvent.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
While the public API & wire protocol included the 'detail'
arg for network lifecycle events, the internal event handling
code did not process it. This meant that if a future libvirtd
server starts sending non-0 'detail' args, the current libvirt
client will not process them.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The domain events demo program isn't really tied to domain
events anymore, so rename it to object events.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
While running objecteventtest, it was found that valgrind pointed out the
following memory leak:
==13464== 5 bytes in 1 blocks are definitely lost in loss record 7 of 134
==13464== at 0x4A0887C: malloc (vg_replace_malloc.c:270)
==13464== by 0x341F485E21: strdup (strdup.c:42)
==13464== by 0x4CAE28F: virStrdup (virstring.c:554)
==13464== by 0x4CF3CBE: virObjectEventCallbackListAddID (object_event.c:286)
==13464== by 0x4CF49CA: virObjectEventStateRegisterID (object_event.c:729)
==13464== by 0x4CF73FE: virDomainEventStateRegisterID (domain_event.c:1424)
==13464== by 0x4D7358F: testConnectDomainEventRegisterAny (test_driver.c:6032)
==13464== by 0x4D600C8: virConnectDomainEventRegisterAny (libvirt.c:19128)
==13464== by 0x402409: testDomainStartStopEvent (objecteventtest.c:232)
==13464== by 0x403451: virtTestRun (testutils.c:138)
==13464== by 0x402012: mymain (objecteventtest.c:395)
==13464== by 0x403AF2: virtTestMain (testutils.c:593)
==13464==
The support for <boot rebootTimeout="12345"/> was added before we were
checking for qemu command line options in QMP, so we haven't properly
adapted virQEMUCaps when using it and thus we report unsupported
option with new enough qemu.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1042690
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Recent changes to events (commit 8a29ffcf) resulted in new compile
failures on some targets (such as ARM OMAP5):
conf/domain_event.c: In function 'virDomainEventDispatchDefaultFunc':
conf/domain_event.c:1198:30: error: cast increases required alignment of
target type [-Werror=cast-align]
conf/domain_event.c:1314:34: error: cast increases required alignment of
target type [-Werror=cast-align]
cc1: all warnings being treated as errors
The error is due to alignment; the base class is merely aligned
to the worst of 'int' and 'void*', while the child class must
be aligned to a 'long long'. The solution is to include a
'long long' (and for good measure, a function pointer) in the
base class to ensure correct alignment regardless of what a
child class may add, but to wrap the inclusion in a union so
as to not incur any wasted space. On a typical x86_64 platform,
the base class remains 16 bytes; on i686, the base class remains
12 bytes; and on the impacted ARM platform, the base class grows
from 12 bytes to 16 bytes due to the increase of alignment from
4 to 8 bytes.
Reported by Michele Paolino and others.
* src/util/virobject.h (_virObject): Use a union to ensure that
subclasses never have stricter alignment than the parent.
* src/util/virobject.c (virObjectNew, virObjectUnref)
(virObjectRef): Adjust clients.
* src/libvirt.c (virConnectRef, virDomainRef, virNetworkRef)
(virInterfaceRef, virStoragePoolRef, virStorageVolRef)
(virNodeDeviceRef, virSecretRef, virStreamRef, virNWFilterRef)
(virDomainSnapshotRef): Likewise.
* src/qemu/qemu_monitor.c (qemuMonitorOpenInternal)
(qemuMonitorClose): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Map the new <panic> device in XML to the '-device pvpanic' command
line of qemu. Clients can then couple the <panic> device and the
<on_crash> directive to control behavior when the guest reports
a panic to qemu.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
virDomainBlkioDeviceWeightParseXML will be used to parse
the xml element read_bps, write_bps, read_iops, write_iops.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Adding output to 'virsh --version=long' makes it easier to
tell if a distro built with particular libraries (it doesn't
tell you what a remote libvirtd is built with, but is still
better than nothing). But we forgot to mention gluster.
* tools/virsh.c (vshShowVersion): Add gluster witness.
Signed-off-by: Eric Blake <eblake@redhat.com>
Hitting this should be pretty rare, but at least developers will know
that they are providing a weird event ID. Otherwise for namespace that
are added in the normal way, gcc will raise a warning about unhandled
case in the switch.
Define the public API for (de-)registering network events
and the callbacks for receiving lifecycle events. The lifecycle
event includes a 'detail' parameter to match the domain lifecycle
event data, but this is currently unused.
The network events related code goes into its own set of internal
files src/conf/network_event.[ch]
This variable shadows the stat(2) function, which only became visible in
this scope as of commit 9cac8639. Rename the variable so it doesn't
conflict.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
When doing 'virsh vol-dumpxml' on a gluster pool's volume, the
resulting URI incorrectly omitted a slash between hostname and
path: gluster://192.168.122.206rhsvol1/fedora-19.img
This is fallout from me rebasing earlier versions of my patch
that ended up as commit efee1af; I had originally played with
always requiring the gluster volume to have a leading slash,
but it was easier to use the gluster API if the gluster volume
name was guaranteed to have no slash. While I got the URI of
the pool correct, I forgot to fix the URI of a libvirt volume.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Use correct starting point
since uri construction requires leading slash.
Signed-off-by: Eric Blake <eblake@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1035955
There's a window when starting a qemu process between fork() and exec()
during which we are doing things that may fail but not tunnelling the
error to the daemon. This is basically all within qemuProcessHook().
So whenever we fail in something, e.g. placing a process onto numa node,
users are left with:
error: Child quit during startup handshake: Input/output error
while the original error is thrown into the domain log:
libvirt: error : internal error: NUMA memory tuning in 'preferred'
mode only supports single node
Hence, we should read the log file and search for the error message and
report it to users.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Each unique event ID will thus be composed by 1 byte for the namespace
and 1 byte for a namespace-specific ID. The namespace for domain event
needs to be 0 for compatibility reasons.
