27.11.2014 17:51, Dmitry Guryanov пишет:
On Tuesday 25 November 2014 15:31:19 Maxim Nestratov wrote:
18.11.2014 16:16, Dmitry Guryanov пишет:
From: Alexander Burluka <[email protected]>
Subscribe to events from parallels server. It's
needed for 2 things: to update cached domains list
and to send corresponding libvirt events.
Parallels server sends a lot of different events, in
this patch we handle only some of them. In the future
we can handle for example, changes in a host network
configuration or devices states.
Signed-off-by: Dmitry Guryanov <[email protected]>
....
+ error:
+ return -1;
+}
+
+void prlsdkUnsubscribeFromPCSEvents(parallelsConnPtr privconn)
+{
+ PRL_RESULT ret = PRL_ERR_UNINITIALIZED;
+ ret = PrlSrv_UnregEventHandler(privconn->server,
+ prlsdkEventsHandler,
+ privconn);
+ if (PRL_FAILED(ret))
+ logPrlError(ret);
+}
diff --git a/src/parallels/parallels_sdk.h b/src/parallels/parallels_sdk.h
index d9461ca..5ffbf53 100644
--- a/src/parallels/parallels_sdk.h
+++ b/src/parallels/parallels_sdk.h
@@ -32,3 +32,5 @@ int
prlsdkLoadDomains(parallelsConnPtr privconn);
virDomainObjPtr
prlsdkAddDomain(parallelsConnPtr privconn, const unsigned char *uuid);
+int prlsdkSubscribeToPCSEvents(parallelsConnPtr privconn);
+void prlsdkUnsubscribeFromPCSEvents(parallelsConnPtr privconn);
I would protect all event processing functions
(prlsdkHandleVmStateEvent, prlsdkHandleVmConfigEvent,
prlsdkHandleVmAddedEvent, prlsdkHandleVmRemovedEvent) with
parallelsDriverLock/parallelsDriverUnlock calls to prevent possible
races triggered by simultaneous operations on the same domain.
Otherwise, ack.
Functions virDomainObjListAdd and virDomainObjListRemove lock domains list, so
no need to protect the privconn->domains list twice.
Function virDomainObjListFindByUUID returns locked virDomainObj. So all
affected objects are already protected.
Hm. Argeed. I missed the point that virDomainObjListFindByUUID takes mutex.
Then calling parallelsDriverLock/parallelsDriverUnlock in
parallelsDomainDefineXML looks unnecessary.
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