[Libvirt-cim] [PATCH 1 of 2] [CU] Add dup_instance function to libcmpiutil

[Jay Gagnon]

# HG changeset patch
# User Jay Gagnon <grendel at linux.vnet.ibm.com>
# Date 1202236785 18000
# Node ID f9065b274d0a1e689f8e0b4d8d5ca0642db470f6
# Parent  ab0e3b05a10e7b5db7eb493920f01bb402d2feae
[CU] Add dup_instance function to libcmpiutil

It appears there are some situations where we have to duplicate an instance; this seemed like the kind of thing that would belong in libcmpiutil.

Changes from #1 to #2:
cu dup_instance returns instance, sets status using pointer
cu_dup_instance copies all properties

Signed-off-by: Jay Gagnon <grendel at linux.vnet.ibm.com>

diff -r ab0e3b05a10e -r f9065b274d0a instance_util.c
--- a/instance_util.c	Wed Jan 30 11:15:32 2008 -0800
+++ b/instance_util.c	Tue Feb 05 13:39:45 2008 -0500
@@ -202,6 +202,52 @@ CMPIStatus cu_copy_prop(const CMPIBroker
 
  out:
         return s;        
+}
+
+CMPIInstance *cu_dup_instance(const CMPIBroker *broker,
+                              CMPIInstance *src,
+                              CMPIStatus *s)
+{
+        int i;
+        int prop_count;
+        CMPIData data;
+        CMPIObjectPath *ref;
+        CMPIInstance *dest = NULL;
+
+        ref = CMGetObjectPath(src, NULL);
+        if ((s->rc != CMPI_RC_OK) || CMIsNullObject(ref)) {
+                cu_statusf(broker, s,
+                           CMPI_RC_ERR_FAILED,
+                           "Could not get objectpath from instance");
+                goto out;
+        }
+     
+        dest = CMNewInstance(broker, ref, s);
+
+        prop_count = CMGetPropertyCount(src, s);
+        if (s->rc != CMPI_RC_OK) {
+                cu_statusf(broker, s,
+                           CMPI_RC_ERR_FAILED,
+                           "Could not get property count for copy");
+                goto out;
+        }
+
+        for (i = 0; i < prop_count; i++) {
+                CMPIString *prop_name;
+                data = CMGetPropertyAt(src, i, &prop_name, s);
+                if (s->rc != CMPI_RC_OK) {
+                        goto out;
+                }
+                
+                *s = CMSetProperty(dest, (char *)(prop_name->hdl), 
+                                   &(data.value), data.type);
+                if (s->rc != CMPI_RC_OK) {
+                        goto out;
+                }
+        }
+
+ out:
+        return dest;
 }
 
 /*
diff -r ab0e3b05a10e -r f9065b274d0a libcmpiutil.h
--- a/libcmpiutil.h	Wed Jan 30 11:15:32 2008 -0800
+++ b/libcmpiutil.h	Tue Feb 05 13:39:45 2008 -0500
@@ -164,6 +164,18 @@ CMPIrc cu_get_u16_path(const CMPIObjectP
 CMPIrc cu_get_u16_path(const CMPIObjectPath *reference,
                        const char *key,
                        uint16_t *target);
+
+/**
+ * Create a copy of an instance
+ *
+ * @param src Source instance
+ * @param dest Destination instance
+ * @returns {CMPI_RC_OK, NULL} if success, CMPI_RC ERR_FAILED and 
+ *          error message otherwise
+ */
+CMPIInstance *cu_dup_instance(const CMPIBroker *broker,
+                              CMPIInstance *src,
+                              CMPIStatus *s);
 
 /* Forward declaration */
 struct inst_list;