static bool GetResourceFromEnumeration(SafeHCluster hCluster,
SafeHClusEnum hEnum,
uint index, out SafeHResource hResource, out string theResourceName)
{
uint type, cch = 0;
hResource = null;
theResourceName = string.Empty;
uint ret = SafeNativeMethods.ClusterEnum(hEnum, index, out type, null, ref cch);
if (ret == SafeNativeMethods.ERROR_NO_MORE_ITEMS)
{
return(false);
}
else if (ret == SafeNativeMethods.ERROR_SUCCESS || ret == SafeNativeMethods.ERROR_MORE_DATA)
{
StringBuilder sb = new StringBuilder((int)(++cch));
ret = SafeNativeMethods.ClusterEnum(hEnum, index, out type, sb, ref cch);
if (ret == SafeNativeMethods.ERROR_SUCCESS)
{
string resourceName = sb.ToString();
#pragma warning suppress 56523
hResource = SafeNativeMethods.OpenClusterResource(hCluster, resourceName);
if (hResource.IsInvalid)
{
hResource = null;
}
else
{
theResourceName = resourceName;
}
}
}
return(true);
}
static string[] GetClusterNodes(SafeHCluster hCluster)
{
#pragma warning suppress 56523
SafeHClusEnum hEnum = SafeNativeMethods.ClusterOpenEnum(hCluster, ClusterEnum.Node);
if (hEnum.IsInvalid)
{
return null;
}
List<string> nodeList = new List<string>(2); // 2 nodes are a typical cluster configuration
using (hEnum)
{
uint ret, index = 0;
do
{
uint type, cch = 0;
ret = SafeNativeMethods.ClusterEnum(hEnum, index, out type, null, ref cch);
if (ret == SafeNativeMethods.ERROR_NO_MORE_ITEMS)
{
break;
}
else if (ret == SafeNativeMethods.ERROR_SUCCESS || ret == SafeNativeMethods.ERROR_MORE_DATA)
{
StringBuilder sb = new StringBuilder((int)(++cch));
ret = SafeNativeMethods.ClusterEnum(hEnum, index, out type, sb, ref cch);
if (ret == SafeNativeMethods.ERROR_SUCCESS)
{
Utilities.Log("Found a node: [" + sb.ToString() + "]");
nodeList.Add(sb.ToString());
}
}
index++;
} while (ret == SafeNativeMethods.ERROR_SUCCESS);
}
return nodeList.ToArray();
}
