unsafe void Stop(bool stopDependentServices)
{
using SafeServiceHandle serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_STOP);
if (stopDependentServices)
{
// Before stopping this service, stop all the dependent services that are running.
// (It's OK not to cache the result of getting the DependentServices property because it caches on its own.)
for (int i = 0; i < DependentServices.Length; i++)
{
ServiceController currentDependent = DependentServices[i];
currentDependent.Refresh();
if (currentDependent.Status != ServiceControllerStatus.Stopped)
{
currentDependent.Stop();
currentDependent.WaitForStatus(ServiceControllerStatus.Stopped, new TimeSpan(0, 0, 30));
}
}
}
Interop.Advapi32.SERVICE_STATUS status = default;
bool result = Interop.Advapi32.ControlService(serviceHandle, Interop.Advapi32.ControlOptions.CONTROL_STOP, &status);
if (!result)
{
Exception inner = new Win32Exception(Marshal.GetLastWin32Error());
throw new InvalidOperationException(SR.Format(SR.StopService, ServiceName, _machineName), inner);
}
}
private unsafe void GenerateStatus()
{
if (!_statusGenerated)
{
IntPtr serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_QUERY_STATUS);
try
{
Interop.Advapi32.SERVICE_STATUS svcStatus = new Interop.Advapi32.SERVICE_STATUS();
bool success = Interop.Advapi32.QueryServiceStatus(serviceHandle, &svcStatus);
if (!success)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
_commandsAccepted = svcStatus.controlsAccepted;
_status = (ServiceControllerStatus)svcStatus.currentState;
_type = svcStatus.serviceType;
_statusGenerated = true;
}
finally
{
Interop.Advapi32.CloseServiceHandle(serviceHandle);
}
}
}
/// <summary>
/// Executes the command.
/// </summary>
/// <param name="command">The command</param>
public unsafe void ExecuteCommand(int command)
{
using var serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_USER_DEFINED_CONTROL);
Interop.Advapi32.SERVICE_STATUS status = default;
bool result = Interop.Advapi32.ControlService(serviceHandle, command, &status);
if (!result)
{
Exception inner = new Win32Exception(Marshal.GetLastWin32Error());
throw new InvalidOperationException(SR.Format(SR.ControlService, ServiceName, MachineName), inner);
}
}
/// <summary>
/// Continues a service after it has been paused.
/// </summary>
public unsafe void Continue()
{
using var serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_PAUSE_CONTINUE);
Interop.Advapi32.SERVICE_STATUS status = default;
bool result = Interop.Advapi32.ControlService(serviceHandle, Interop.Advapi32.ControlOptions.CONTROL_CONTINUE, &status);
if (!result)
{
Exception inner = new Win32Exception(Marshal.GetLastWin32Error());
throw new InvalidOperationException(SR.Format(SR.ResumeService, ServiceName, _machineName), inner);
}
}
private unsafe void GenerateStatus()
{
if (_statusGenerated)
{
return;
}
using var serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_QUERY_STATUS);
Interop.Advapi32.SERVICE_STATUS svcStatus = default;
bool success = Interop.Advapi32.QueryServiceStatus(serviceHandle, &svcStatus);
if (!success)
throw new Win32Exception(Marshal.GetLastWin32Error());
_commandsAccepted = svcStatus.controlsAccepted;
_status = (ServiceControllerStatus)svcStatus.currentState;
_type = svcStatus.serviceType;
_statusGenerated = true;
}
/// Suspends a service's operation.
public unsafe void Pause()
{
IntPtr serviceHandle = GetServiceHandle(Interop.Advapi32.ServiceOptions.SERVICE_PAUSE_CONTINUE);
try
{
Interop.Advapi32.SERVICE_STATUS status = new Interop.Advapi32.SERVICE_STATUS();
bool result = Interop.Advapi32.ControlService(serviceHandle, Interop.Advapi32.ControlOptions.CONTROL_PAUSE, &status);
if (!result)
{
Exception inner = new Win32Exception(Marshal.GetLastWin32Error());
throw new InvalidOperationException(SR.Format(SR.PauseService, ServiceName, _machineName), inner);
}
}
finally
{
Interop.Advapi32.CloseServiceHandle(serviceHandle);
}
}
