[libvirt] [PATCHv2 4/4] Use virParseScaledValue in virDomainParseMemory

[Guido Günther]

---
 src/conf/domain_conf.c |   37 ++++---------------------------------
 1 file changed, 4 insertions(+), 33 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index d5e01a8..6073dcf 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -7706,53 +7706,24 @@ static int
 virDomainParseMemory(const char *xpath, xmlXPathContextPtr ctxt,
                      unsigned long long *mem, bool required)
 {
-    char *xpath_full = NULL;
-    char *unit = NULL;
     int ret = -1;
-    unsigned long long bytes;
-    unsigned long long max;
+    unsigned long long bytes, max;
 
-    *mem = 0;
-    if (virAsprintf(&xpath_full, "string(%s)", xpath) < 0) {
-        virReportOOMError();
-        goto cleanup;
-    }
-    ret = virXPathULongLong(xpath_full, ctxt, &bytes);
-    if (ret < 0) {
-        if (ret == -2)
-            virDomainReportError(VIR_ERR_XML_ERROR,
-                                 _("could not parse memory element %s"),
-                                 xpath);
-        else if (required)
-            virDomainReportError(VIR_ERR_XML_ERROR,
-                                 _("missing memory element %s"),
-                                 xpath);
-        else
-            ret = 0;
-        goto cleanup;
-    }
-    VIR_FREE(xpath_full);
-
-    if (virAsprintf(&xpath_full, "string(%s/@unit)", xpath) < 0) {
-        virReportOOMError();
-        goto cleanup;
-    }
-    unit = virXPathString(xpath_full, ctxt);
     /* On 32-bit machines, our bound is 0xffffffff * KiB. On 64-bit
      * machines, our bound is off_t (2^63).  */
     if (sizeof(unsigned long) < sizeof(long long))
         max = 1024ull * ULONG_MAX;
     else
         max = LLONG_MAX;
-    if (virScaleInteger(&bytes, unit, 1024, max) < 0)
+
+    ret = virDomainParseScaledValue(xpath, ctxt, &bytes, 1024, max, required);
+    if (ret < 0)
         goto cleanup;
 
     /* Yes, we really do use kibibytes for our internal sizing.  */
     *mem = VIR_DIV_UP(bytes, 1024);
     ret = 0;
 cleanup:
-    VIR_FREE(xpath_full);
-    VIR_FREE(unit);
     return ret;
 }
 
-- 
1.7.10