/**
 * 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 bufferContextChain.I
 * @author drose
 * @date 2006-03-16
 */

/**
 *
 */
INLINE BufferContextChain::
BufferContextChain() :
  LinkedListNode(true),  // This object is the root of a list of BufferContexts.
  _total_size(0),
  _count(0)
{
}

/**
 *
 */
INLINE BufferContextChain::
~BufferContextChain() {
  nassertv(_total_size == 0 && _count == 0);
}

/**
 * Returns the total number of bytes represented by the BufferContexts
 * currently assigned to this tracker.
 */
INLINE size_t BufferContextChain::
get_total_size() const {
  return _total_size;
}

/**
 * Returns the total number of BufferContexts currently assigned to this
 * tracker.
 */
INLINE int BufferContextChain::
get_count() const {
  return _count;
}

/**
 * Adds or removes some from the total byte count.
 */
INLINE void BufferContextChain::
adjust_bytes(int delta) {
  _total_size += delta;
}