public static void RunMeInSingleProcessOnly(Action <string> exitingMessage)
{
string appName = ProgramRoutines.GetAppName();
//MutexSecurity mutexSecurity = new MutexSecurity();
//mutexSecurity.AddAccessRule(new MutexAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), MutexRights.Synchronize | MutexRights.Modify, AccessControlType.Allow));
for (int i = 0; i < 2; i++)
{
try
{
GLOBAL_SINGLE_PROCESS_MUTEX = new Mutex(false, @"Global\CLIVERSOFT_" + appName + @"_SINGLE_PROCESS", out _ /*, mutexSecurity*/);
break;
}
catch (Exception e)
{//An “access denied” while creating a new Mutex can happen in the following situation:
//a.Process A running as an administrator creates a named mutex.
//b.Process B running as a normal user attempts to access the mutex which fails with “access denied” since only Administrators can access the mutex.
if (i == 0)
{
Thread.Sleep(1000);//wait for some time while contending, if the other instance of the program is still in progress of shutting down.
continue;
}
exitingMessage?.Invoke(Log.GetExceptionMessage(e) + "\r\n\r\nExiting...");
Environment.Exit(0);
}
}
if (GLOBAL_SINGLE_PROCESS_MUTEX.WaitOne(1000, false))//wait for some time while contending, if the other instance of the program is still in progress of shutting down.
{
return;
}
exitingMessage?.Invoke(appName + " is already running, so this instance will exit.");
Environment.Exit(0);
}
/// <summary>
///
/// </summary>
/// <param name="as_administarator"></param>
/// <param name="arguments">if NULL then reuse parameters of the calling process</param>
public static void Restart(bool as_administarator = false, string arguments = "")
{
if (arguments == null)
{
arguments = Regex.Replace(Environment.CommandLine, @"^\s*(\'.*?\'|\"".*?\"")\s+", "", RegexOptions.Singleline);
}
ProcessStartInfo psi = new ProcessStartInfo();
psi.UseShellExecute = true;
psi.WorkingDirectory = Environment.CurrentDirectory;
psi.FileName = ProgramRoutines.GetAppPath();
if (as_administarator)
{
psi.Verb = "runas";
}
psi.Arguments = arguments;
if (GLOBAL_SINGLE_PROCESS_MUTEX != null)
{
GLOBAL_SINGLE_PROCESS_MUTEX.ReleaseMutex();
}
try
{
Process.Start(psi);
}
catch
{ //if the user cancelled
}
Environment.Exit(0);
}