From f342cc93ec918d684e8a6f6e646551a9c7fbc019 Mon Sep 17 00:00:00 2001
From: Sameeh Jubran <sameeh@daynix.com>
Date: Thu, 23 Mar 2017 18:26:50 +0200
Subject: qemu-ga: Make QGA VSS provider service run only when needed

Currently the service runs in background on boot even though it is not
needed and once it is running it never stops. The service needs to be
running only during freeze operation and it should be stopped after
executing thaw.

Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 qga/vss-win32/install.cpp | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

(limited to 'qga/vss-win32/install.cpp')

diff --git a/qga/vss-win32/install.cpp b/qga/vss-win32/install.cpp
index f4160a3a86..f41fcdfdda 100644
--- a/qga/vss-win32/install.cpp
+++ b/qga/vss-win32/install.cpp
@@ -14,7 +14,7 @@
 
 #include "vss-common.h"
 #include <inc/win2003/vscoordint.h>
-#include <comadmin.h>
+#include "install.h"
 #include <wbemidl.h>
 #include <comdef.h>
 #include <comutil.h>
@@ -276,7 +276,7 @@ STDAPI COMRegister(void)
 
     chk(pCatalog->CreateServiceForApplication(
             _bstr_t(QGA_PROVIDER_LNAME), _bstr_t(QGA_PROVIDER_LNAME),
-            _bstr_t(L"SERVICE_AUTO_START"), _bstr_t(L"SERVICE_ERROR_NORMAL"),
+            _bstr_t(L"SERVICE_DEMAND_START"), _bstr_t(L"SERVICE_ERROR_NORMAL"),
             _bstr_t(L""), _bstr_t(L".\\localsystem"), _bstr_t(L""), FALSE));
     chk(pCatalog->InstallComponent(_bstr_t(QGA_PROVIDER_LNAME),
                                    _bstr_t(dllPath), _bstr_t(tlbPath),
@@ -461,3 +461,27 @@ namespace _com_util
         return bstr;
     }
 }
+
+/* Stop QGA VSS provider service from COM+ Application Admin Catalog */
+
+STDAPI StopService(void)
+{
+    HRESULT hr;
+    COMInitializer initializer;
+    COMPointer<IUnknown> pUnknown;
+    COMPointer<ICOMAdminCatalog2> pCatalog;
+
+    int count = 0;
+
+    chk(QGAProviderFind(QGAProviderCount, (void *)&count));
+    if (count) {
+        chk(CoCreateInstance(CLSID_COMAdminCatalog, NULL, CLSCTX_INPROC_SERVER,
+            IID_IUnknown, (void **)pUnknown.replace()));
+        chk(pUnknown->QueryInterface(IID_ICOMAdminCatalog2,
+            (void **)pCatalog.replace()));
+        chk(pCatalog->ShutdownApplication(_bstr_t(QGA_PROVIDER_LNAME)));
+    }
+
+out:
+    return hr;
+}
-- 
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