chxelst.cpp
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: chxelst.cpp,v 1.3.2.1 2004/07/09 02:05:57 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file,
- * are subject to the current version of the RealNetworks Public
- * Source License (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (the "RCSL") available at
- * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
- * will apply. You may also obtain the license terms directly from
- * RealNetworks. You may not use this file except in compliance with
- * the RPSL or, if you have a valid RCSL with RealNetworks applicable
- * to this file, the RCSL. Please see the applicable RPSL or RCSL for
- * the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the
- * portions it created.
- *
- * This file, and the files included with this file, is distributed
- * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
- * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
- * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
- * ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- #include "hxresult.h"
- #include "hxcom.h"
- #include "ihxpckts.h"
- #include "hxfiles.h"
- #include "hxcore.h"
- #include "chxeven.h"
- #include "chxelst.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- HX_RESULT CHXEventList::InsertEvent(CHXEvent* pEvent)
- {
- HX_RESULT theErr = HXR_OK;
- // enqueue the event into event queue
- CHXEvent* event = NULL;
- BOOL earlierPacketFound = FALSE;
- UINT32 currentPos = 0;
- UINT32 startPos = pEvent->GetTimeStartPos();
- // Loop we are done or we find an event that is after this
- // time stamp...
- LISTPOSITION position = GetTailPosition();
- while (position != NULL && !earlierPacketFound && theErr == HXR_OK )
- {
- event = GetPrev(position);
- // This event must be valid or else it shouldn't be
- // in this list!
- HX_ASSERT_VALID_PTR(event);
- currentPos = event->GetTimeStartPos();
- // either a) 0xFA 0xFB 0xFC (0xFD)
- // or b) 0xFA .. 0xFF [roll over] (0x01)
- if ((currentPos <= startPos && (startPos - currentPos) < MAX_TIMESTAMP_GAP) ||
- (currentPos > startPos && (currentPos - startPos) > MAX_TIMESTAMP_GAP))
- {
- // Remember that we found an earlier packet...
- earlierPacketFound = TRUE;
- // If the position is null, then event was the first
- // item in the list, and we need to do some fancy footwork...
- if (!position)
- {
- POSITION theHead = GetHeadPosition();
- LISTPOSITION listRet = InsertAfter(theHead,pEvent);
- if( listRet == NULL )
- {
- theErr = HXR_OUTOFMEMORY;
- }
- }
- // otherwise, roll ahead one...
- else
- {
- GetNext(position);
- // Now if the position is null, then event was the last
- // item in the list, and we need to do some more fancy footwork...
- if (!position)
- {
- AddTail(pEvent);
- }
- else
- // otherwise, we have a normal case and we want to insert
- // right after the position of event
- {
- LISTPOSITION listRet = InsertAfter(position,pEvent);
- if( listRet == NULL )
- {
- theErr = HXR_OUTOFMEMORY;
- }
- }
- }
- // We don't need to search any more...
- break; // while
- }
- } // end while...
- // If we didn't find an earlier packet, then we should insert at
- // the head of the event list...
- if (!theErr && !earlierPacketFound)
- {
- AddHead(pEvent);
- }
- return theErr;
- }