Francois Gouget : testbot/LibvirtTool: Disable the Windows time service.

[Alexandre Julliard]

Module: tools
Branch: master
Commit: 05e5686eb1ccf95f92de00d93804ae5fdbccb346
URL:    https://gitlab.winehq.org/winehq/tools/-/commit/05e5686eb1ccf95f92de00d93804...

Author: Francois Gouget <fgouget(a)codeweavers.com>
Date:   Mon Sep 19 17:26:33 2022 +0200

testbot/LibvirtTool: Disable the Windows time service.

The TestBot already sets the VM's current time before starting a task.
But the Windows Time service could still be making small time
adjustmenents (including backwards) by small (<1s) amounts while the
tests are running, which could cause failures.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53516
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=53273

---

 testbot/bin/LibvirtTool.pl | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/testbot/bin/LibvirtTool.pl b/testbot/bin/LibvirtTool.pl
index d087b358..0c070da6 100755
--- a/testbot/bin/LibvirtTool.pl
+++ b/testbot/bin/LibvirtTool.pl
@@ -716,6 +716,21 @@ sub CreateSnapshot($$$$)
       Error("Could not change the Windows boot delay on $VMKey\n");
     }
 
+    # Stop and disable the Windows time service to be sure it won't change
+    # the time while a test is running.
+    if (RunAndWait($PTA, ["net.exe", "stop", "w32time"]))
+    {
+      Error("Could not stop the $VMKey Windows time service\n");
+    }
+    if (RunAndWait($PTA, ["sc.exe", "config", "w32time", "start=", "disabled"]))
+    {
+      Error("Could not disable the $VMKey Windows time service\n");
+    }
+    if (RunAndWait($TA, ["reg.exe", "add", "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\W32Time\\Parameters", "/v", "Type", "/t", "REG_SZ", "/d", "NoSync", "/f"]))
+    {
+      FatalError("Could not set the $VMKey Windows Time service to NoSync\n");
+    }
+
     if ($Config->{tsign})
     {
       # Takes effect after the next reboot