[libvirt] [PATCH 2/4] vz: Remove prlsdkAddDomain() and use new functions

[Mikhail Feoktistov]

Use prlsdkNewDomain() and prlsdkSetDomainInstance() instead of prlsdkAddDomain()
New algorithm for creating an instance:
In vzDomainDefineXMLFlags() we add new domain to domain list by calling prlsdkNewDomain()
and only after that we call CreateVm() to create VM.
It means that we "reserve" domain object with the specific uuid.
After creation of new VM we add info from this VM
to reserved domain object by calling sdkSetDomainInstance().

In notification handler prlsdkHandleVmAddedEvent() we check
the existence of a domain and if it doesn't exist we add new domain by calling
prlsdkLoadDomain().
---
 src/vz/vz_driver.c | 14 ++++++++++++--
 src/vz/vz_sdk.c    | 38 +++++++++++++++-----------------------
 src/vz/vz_sdk.h    |  2 --
 3 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index f73f8ef..d1cf8d0 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -687,6 +687,7 @@ vzDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
     virDomainPtr retdom = NULL;
     virDomainDefPtr def;
     virDomainObjPtr olddom = NULL;
+    virDomainObjPtr newdom = NULL;
     unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE;
 
     virCheckFlags(VIR_DOMAIN_DEFINE_VALIDATE, NULL);
@@ -702,6 +703,10 @@ vzDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
     olddom = virDomainObjListFindByUUID(privconn->domains, def->uuid);
     if (olddom == NULL) {
         virResetLastError();
+        newdom = prlsdkNewDomain(privconn, def->name, def->uuid);
+        if (!newdom)
+            goto cleanup;
+
         if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
             if (prlsdkCreateVm(conn, def))
                 goto cleanup;
@@ -715,8 +720,7 @@ vzDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
             goto cleanup;
         }
 
-        olddom = prlsdkAddDomain(privconn, def->uuid);
-        if (!olddom)
+        if (prlsdkSetDomainInstance(privconn, newdom, def->uuid))
             goto cleanup;
     } else {
         int state, reason;
@@ -757,6 +761,12 @@ vzDomainDefineXMLFlags(virConnectPtr conn, const char *xml, unsigned int flags)
  cleanup:
     if (olddom)
         virObjectUnlock(olddom);
+    if (newdom) {
+        if (!retdom)
+             virDomainObjListRemove(privconn->domains, newdom);
+        else
+             virObjectUnlock(newdom);
+    }
     virDomainDefFree(def);
     vzDriverUnlock(privconn);
     return retdom;
diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c
index c705517..765f5f1 100644
--- a/src/vz/vz_sdk.c
+++ b/src/vz/vz_sdk.c
@@ -1473,27 +1473,6 @@ prlsdkLoadDomains(vzConnPtr privconn)
     return -1;
 }
 
-virDomainObjPtr
-prlsdkAddDomain(vzConnPtr privconn, const unsigned char *uuid)
-{
-    PRL_HANDLE sdkdom = PRL_INVALID_HANDLE;
-    virDomainObjPtr dom;
-
-    dom = virDomainObjListFindByUUID(privconn->domains, uuid);
-    if (dom) {
-        /* domain is already in the list */
-        return dom;
-    }
-
-    sdkdom = prlsdkSdkDomainLookupByUUID(privconn, uuid);
-    if (sdkdom == PRL_INVALID_HANDLE)
-        return NULL;
-
-    dom = prlsdkLoadDomain(privconn, sdkdom, NULL);
-    PrlHandle_Free(sdkdom);
-    return dom;
-}
-
 int
 prlsdkUpdateDomain(vzConnPtr privconn, virDomainObjPtr dom)
 {
@@ -1672,11 +1651,24 @@ prlsdkHandleVmAddedEvent(vzConnPtr privconn,
                          unsigned char *uuid)
 {
     virDomainObjPtr dom = NULL;
+    PRL_HANDLE sdkdom = PRL_INVALID_HANDLE;
 
-    dom = prlsdkAddDomain(privconn, uuid);
-    if (dom == NULL)
+    dom = virDomainObjListFindByUUID(privconn->domains, uuid);
+    if (dom) {
+        /* domain is already in the list */
+        goto send_event;
+    }
+
+    sdkdom = prlsdkSdkDomainLookupByUUID(privconn, uuid);
+    if (sdkdom == PRL_INVALID_HANDLE)
+        return;
+
+    dom = prlsdkLoadDomain(privconn, sdkdom, NULL);
+    PrlHandle_Free(sdkdom);
+    if (!dom)
         return;
 
+ send_event:
     prlsdkSendEvent(privconn, dom, VIR_DOMAIN_EVENT_DEFINED,
                     VIR_DOMAIN_EVENT_DEFINED_ADDED);
 
diff --git a/src/vz/vz_sdk.h b/src/vz/vz_sdk.h
index 060635e..19bce88 100644
--- a/src/vz/vz_sdk.h
+++ b/src/vz/vz_sdk.h
@@ -31,8 +31,6 @@ void prlsdkDisconnect(vzConnPtr privconn);
 int
 prlsdkLoadDomains(vzConnPtr privconn);
 virDomainObjPtr
-prlsdkAddDomain(vzConnPtr privconn, const unsigned char *uuid);
-virDomainObjPtr
 prlsdkNewDomain(vzConnPtr privconn,
                 char *name,
                 const unsigned char *uuid);
-- 
1.8.3.1