// Copyright (C) 2011,2012 GlavSoft LLC.
// All rights reserved.
//
//-------------------------------------------------------------------------
// This file is part of the TightVNC software.  Please visit our Web site:
//
//                       http://www.tightvnc.com/
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//-------------------------------------------------------------------------
//

#include "PipeImpersonatedThread.h"
#include "Environment.h"

PipeImpersonatedThread::PipeImpersonatedThread(HANDLE pipeHandle)
: m_pipeHandle(pipeHandle),
  m_success(false)
{
}

PipeImpersonatedThread::~PipeImpersonatedThread()
{
  terminate();
  wait();
}

void PipeImpersonatedThread::onTerminate()
{
  m_threadSleeper.notify();
}

void PipeImpersonatedThread::waitUntilImpersonated()
{
  m_impersonationReadyEvent.waitForEvent();
}

bool PipeImpersonatedThread::getImpersonationSuccess()
{
  return m_success;
}

void PipeImpersonatedThread::getFaultReason(StringStorage *faultReason)
{
  *faultReason = m_faultReason;
}

void PipeImpersonatedThread::execute()
{
  m_success = ImpersonateNamedPipeClient(m_pipeHandle) != 0;
  if (!m_success) {
    // Store fault reason
    Environment::getErrStr(&m_faultReason);
  }
  m_impersonationReadyEvent.notify();

  while (!isTerminating()) {
    m_threadSleeper.waitForEvent();
  }
  RevertToSelf();
}
