public override int Active()
{
_start = 0;
_startNotified = false;
_stopNotified = false;
{
lock (m_Filter.FilterLock)
{
_clock = m_Filter.Clock;
if (_clock.IsValid)
{
_clock._AddRef();
}
_semaphore = new Semaphore(0, 0x7FFFFFFF);
}
}
return base.Active();
}
public override int Inactive()
{
m_isActive = false;
HRESULT hr = (HRESULT)base.Inactive();
if (m_pClock != null)
{
if (m_dwAdviseToken != 0)
{
m_pClock.Unadvise(m_dwAdviseToken);
m_dwAdviseToken = 0;
}
m_pClock._Release();
m_pClock = null;
if (m_hSemaphore != null)
{
m_hSemaphore.Close();
m_hSemaphore = null;
}
}
return hr;
}
public override int Inactive()
{
var hr = (HRESULT)base.Inactive();
if (_clock != null)
{
if (_adviseToken != 0)
{
_clock.Unadvise(_adviseToken);
_adviseToken = 0;
}
_clock._Release();
_clock = null;
if (_semaphore != null)
{
_semaphore.Close();
_semaphore = null;
}
}
return hr;
}
public override int Active()
{
m_rtStart = 0;
m_bStartNotified = false;
m_bStopNotified = false;
{
lock (m_Filter.FilterLock)
{
m_pClock = m_Filter.Clock;
if (m_pClock.IsValid)
{
m_pClock._AddRef();
}
m_hSemaphore = new Semaphore(0, 0x7FFFFFFF);
m_isActive = true;
}
}
return base.Active();
}