MsdtcWrapper(string machineName, string virtualServerName, ConfigurationProvider configProvider)
{
if (configProvider == null)
{
throw new ArgumentNullException("configProvider");
}
this.machineName = machineName;
this.virtualServerName = virtualServerName;
this.configProvider = configProvider;
this.proxy = null;
int hr;
string hostName = GetTransactionManagerHostName(machineName, virtualServerName);
if (IsLongHornClusterLocalDtc(machineName, virtualServerName))
{
SafeNativeMethods.OLE_TM_CONFIG_PARAMS_V2 configParams = new SafeNativeMethods.OLE_TM_CONFIG_PARAMS_V2();
configParams.dwVersion = SafeNativeMethods.OLE_TM_CONFIG_VERSION_2;
configParams.pwszClusterResourceName = "LOCAL";
hr = SafeNativeMethods.DtcGetTransactionManagerEx_WithConfigParams(
hostName,
string.Empty,
ref IDtcNetworkAccessConfigInterfaceId,
SafeNativeMethods.OLE_TM_FLAG_NONE,
ref configParams,
out proxy);
}
else
{
hr = SafeNativeMethods.DtcGetTransactionManagerEx(
hostName,
string.Empty,
ref IDtcNetworkAccessConfigInterfaceId,
SafeNativeMethods.OLE_TM_FLAG_NONE,
IntPtr.Zero,
out proxy);
}
if (proxy == null)
{
// Chances are we are on a XP machine; even on XP SP2 this interface is not available
Utilities.Log("Unable to query IDtcNetworkAccessConfig" + hr);
if (Utilities.IsLocalMachineName(machineName))
{
controller = new System.ServiceProcess.ServiceController("MSDTC");
}
else
{
// We do not use ServiceController to control remote services for secuirty concerns - use WMI remote process invocation to do that
controller = null;
}
}
}