Add function that raises error if domain is not active

Add a function named virDomainObjCheckIsActive in src/conf/domain_conf.c.
It calls virDomainObjIsActive, raises error if necessary and returns.

There is a lot of occurence of this pattern and it will save 3 lines on
each call.

Signed-off-by: Clementine Hayat <clem@lse.epita.fr>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>

src/conf/domain_conf.c

@@ -5997,6 +5997,17 @@ virDomainDefValidate(virDomainDefPtr def,
     return 0;
 }
 
+int
+virDomainObjCheckActive(virDomainObjPtr dom)
+{
+    if (!virDomainObjIsActive(dom)) {
+       virReportError(VIR_ERR_OPERATION_INVALID,
+                      "%s", _("domain is not running"));
+       return -1;
+    }
+    return 0;
+}
+
 
 /**
  * virDomainDeviceLoadparmIsValid

src/conf/domain_conf.h

@@ -2722,6 +2722,8 @@ virDomainObjIsActive(virDomainObjPtr dom)
     return dom->def->id != -1;
 }
 
+int virDomainObjCheckActive(virDomainObjPtr dom);
+
 int virDomainDefSetVcpusMax(virDomainDefPtr def,
                             unsigned int vcpus,
                             virDomainXMLOptionPtr xmlopt);

src/libvirt_private.syms

@@ -474,6 +474,7 @@ virDomainNostateReasonTypeFromString;
 virDomainNostateReasonTypeToString;
 virDomainObjAssignDef;
 virDomainObjBroadcast;
+virDomainObjCheckActive;
 virDomainObjCopyPersistentDef;
 virDomainObjEndAPI;
 virDomainObjFormat;