/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file asyncTaskChain.I
 * @author drose
 * @date 2006-08-23
 */

/**
 * Returns true if the thread(s) have been started and are ready to service
 * requests, false otherwise.  If this is false, the next call to add() or
 * add_and_do() will automatically start the threads.
 */
INLINE bool AsyncTaskChain::
is_started() const {
  return (_state == S_started);
}

/**
 * Returns the time at which the next sleeping thread will awaken, or -1 if
 * there are no sleeping threads.  Assumes the lock is already held.
 */
INLINE double AsyncTaskChain::
do_get_next_wake_time() const {
  if (!_sleeping.empty()) {
    return _sleeping.front()->_wake_time;
  }
  return -1.0;
}

/**
 * Returns the time at which the indicated thread will awaken.  Assumes the
 * lock is already held.
 */
INLINE double AsyncTaskChain::
get_wake_time(AsyncTask *task) {
  return task->_wake_time;
}