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[libvirt] [PATCH] Introduce virDomainChrDefNew()



Hi,
this is the commit to introduce the function to create new character
device definition for the domain as advices by Cole Robinson
<crobinso redhat com>.

The function is used on the relevant places and the make, make check
and make syntax-check all passed.

Michal

Signed-off-by: Michal Novotny <minovotn redhat com>
Signed-off-by: Michal Novotny <mignov gmail com>
---
 src/conf/domain_conf.c   |   20 +++++++++++++++++---
 src/conf/domain_conf.h   |    2 ++
 src/libvirt_private.syms |    1 +
 src/qemu/qemu_command.c  |    3 ++-
 src/xenxs/xen_xm.c       |    3 ++-
 5 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 90a1317..a80719c 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -3212,6 +3212,22 @@ error:
     goto cleanup;
 }
 
+/* Create a new character device definition and set
+ * default port.
+ */
+virDomainChrDefPtr
+virDomainChrDefNew(void) {
+    virDomainChrDefPtr def = NULL;
+
+    if (VIR_ALLOC(def) < 0) {
+        virReportOOMError();
+        return NULL;
+    }
+
+    def->target.port = -1;
+    return def;
+}
+
 /* Parse the XML definition for a character device
  * @param node XML nodeset to parse for net definition
  *
@@ -3260,10 +3276,8 @@ virDomainChrDefParseXML(virCapsPtr caps,
     virDomainChrDefPtr def;
     int remaining;
 
-    if (VIR_ALLOC(def) < 0) {
-        virReportOOMError();
+    if (!(def = virDomainChrDefNew()))
         return NULL;
-    }
 
     type = virXMLPropString(node, "type");
     if (type == NULL) {
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 95bd11e..ecf44ca 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1229,6 +1229,8 @@ void virDomainObjRef(virDomainObjPtr vm);
 /* Returns 1 if the object was freed, 0 if more refs exist */
 int virDomainObjUnref(virDomainObjPtr vm) ATTRIBUTE_RETURN_CHECK;
 
+virDomainChrDefPtr virDomainChrDefNew(void);
+
 /* live == true means def describes an active domain (being migrated or
  * restored) as opposed to a new persistent configuration of the domain */
 virDomainObjPtr virDomainAssignDef(virCapsPtr caps,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 54e4482..c13e416 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -333,6 +333,7 @@ virDomainWatchdogActionTypeFromString;
 virDomainWatchdogActionTypeToString;
 virDomainWatchdogModelTypeFromString;
 virDomainWatchdogModelTypeToString;
+virDomainChrDefNew;
 
 
 # domain_event.h
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index fea0068..d258712 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -36,6 +36,7 @@
 #include "c-ctype.h"
 #include "domain_nwfilter.h"
 #include "qemu_audit.h"
+#include "domain_conf.h"
 
 #include <sys/utsname.h>
 #include <sys/stat.h>
@@ -5315,7 +5316,7 @@ qemuParseCommandLineChr(const char *val)
 {
     virDomainChrDefPtr def;
 
-    if (VIR_ALLOC(def) < 0)
+    if (!(def = virDomainChrDefNew()))
         goto no_memory;
 
     if (STREQ(val, "null")) {
diff --git a/src/xenxs/xen_xm.c b/src/xenxs/xen_xm.c
index 22ad788..0b47f1f 100644
--- a/src/xenxs/xen_xm.c
+++ b/src/xenxs/xen_xm.c
@@ -36,6 +36,7 @@
 #include "xenxs_private.h"
 #include "xen_xm.h"
 #include "xen_sxpr.h"
+#include "domain_conf.h"
 
 /* Convenience method to grab a int from the config file object */
 static int xenXMConfigGetBool(virConfPtr conf,
@@ -981,7 +982,7 @@ xenParseXM(virConfPtr conf, int xendConfigVersion,
                     continue;
                 }
 
-                if (VIR_ALLOC(chr) < 0)
+                if (!(chr = virDomainChrDefNew()))
                     goto no_memory;
                 if (!(chr = xenParseSxprChar(port, NULL)))
                     goto cleanup;
-- 
1.7.3.2


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