/// <summary>
/// Enable standby using ThreadExecutionState.
/// </summary>
private void EnableStandbyThreadExecutionState()
{
try
{
lock (lockObj)
{
bool standbyWasSuspended = this.standbySuspended;
var success = SetThreadExecutionState(ES_CONTINUOUS);
if (success == 0)
{
var ex = Win32ExceptionManager.GetWin32Exception();
var error = Marshal.GetLastWin32Error();
throw new WsapmException(Resources.Wsapm_Service.StandbyManager_StandbyEnableFailed, ex);
}
// Standby sucessfully enabled.
this.standbySuspended = false;
if (standbyWasSuspended)
{
this.log.WriteLine(Resources.Wsapm_Service.StandbyManager_StandbyEnabled, LogMode.Normal); // Only write log if standby was suspended before.
}
}
}
catch (Exception ex)
{
this.log.WriteError(ex);
}
}
/// <summary>
/// Suspend standby by SetThreadExecutionSTate because of a given CheckSuspendResult.
/// </summary>
/// <param name="result">The result why the standby should be suspended.</param>
private void SuspendStandbyThreadExecutionState(CheckSuspendResult result)
{
try
{
lock (lockObj)
{
var success = SetThreadExecutionState(ES_CONTINUOUS | ES_SYSTEM_REQUIRED);
if (success == 0)
{
this.standbySuspended = false;
var ex = Win32ExceptionManager.GetWin32Exception();
throw new WsapmException(Resources.Wsapm_Service.StandbyManager_SuspendStandbyFailed, ex);
}
else
{
this.standbySuspended = true;
if (!String.IsNullOrEmpty(result.Reason))
{
this.log.WriteLine(String.Format(Resources.Wsapm_Service.StandbyManager_StandbySuspendedWithReason, result.Reason), LogMode.Normal);
}
else
{
this.log.WriteLine(Resources.Wsapm_Service.StandbyManager_StandbySuspendedWithoutReason, LogMode.Verbose);
}
}
}
}
catch (Exception ex)
{
this.log.WriteError(ex);
}
}
/// <summary>
/// Suspend standby by PowerAvailabilityRequest becasue of a given CheckSuspendResult.
/// </summary>
/// <param name="result">The result why the standby should be suspended.</param>
private void SuspendStandbyPowerAvailabilityRequest(CheckSuspendResult result)
{
try
{
lock (lockObj)
{
// Clear current power request if there is any.
if (this.currentPowerRequest != IntPtr.Zero)
{
PowerClearRequest(this.currentPowerRequest, PowerRequestType.PowerRequestSystemRequired);
this.currentPowerRequest = IntPtr.Zero;
this.standbySuspended = false;
}
POWER_REQUEST_CONTEXT pContext;
pContext.Flags = POWER_REQUEST_CONTEXT_SIMPLE_STRING;
pContext.Version = POWER_REQUEST_CONTEXT_VERSION;
pContext.SimpleReasonString = Resources.Wsapm_Service.StandbyManager_StandbySuspended;
this.currentPowerRequest = PowerCreateRequest(ref pContext);
if (this.currentPowerRequest == IntPtr.Zero)
{
this.standbySuspended = false;
var ex = Win32ExceptionManager.GetWin32Exception();
throw new WsapmException(Resources.Wsapm_Service.StandbyManager_CreatePowerRequestFail, ex);
}
bool success = PowerSetRequest(this.currentPowerRequest, PowerRequestType.PowerRequestSystemRequired);
if (!success)
{
this.standbySuspended = false;
this.currentPowerRequest = IntPtr.Zero;
var ex = Win32ExceptionManager.GetWin32Exception();
throw new WsapmException(Resources.Wsapm_Service.StandbyManager_SuspendStandbyFailed, ex);
}
else
{
this.standbySuspended = true;
if (!String.IsNullOrEmpty(result.Reason))
{
this.log.WriteLine(String.Format(Resources.Wsapm_Service.StandbyManager_StandbySuspendedWithReason, result.Reason), LogMode.Normal);
}
else
{
this.log.WriteLine(Resources.Wsapm_Service.StandbyManager_StandbySuspendedWithoutReason, LogMode.Verbose);
}
}
}
}
catch (Exception ex)
{
this.log.WriteError(ex);
}
}
/// <summary>
/// Enable standby using power availability request.
/// </summary>
private void EnableStandbyPowerAvailabilityRequest()
{
try
{
lock (lockObj)
{
bool standbyWasSuspended = this.standbySuspended;
if (this.currentPowerRequest != IntPtr.Zero)
{
var success = PowerClearRequest(this.currentPowerRequest, PowerRequestType.PowerRequestSystemRequired);
if (!success)
{
this.currentPowerRequest = IntPtr.Zero;
var ex = Win32ExceptionManager.GetWin32Exception();
throw new WsapmException(Resources.Wsapm_Service.StandbyManager_StandbyEnableFailed, ex);
}
else
{
this.currentPowerRequest = IntPtr.Zero;
this.standbySuspended = false;
}
}
if (standbyWasSuspended)
{
this.log.WriteLine(Resources.Wsapm_Service.StandbyManager_StandbyEnabled, LogMode.Normal); // Only write log if standby was suspended before.
}
}
}
catch (Exception ex)
{
this.log.WriteError(ex);
}
}