Menu

EventSeqHeaderSupport.h

Go to the documentation of this file.
00001 /*******************************************************************************
00002  *
00003  * Copyright (c) 2009-2010 Philipp Werner <philipp.werner@st.ovgu.de>
00004  * All rights reserved.
00005  *
00006  *    Redistribution and use in source and binary forms, with or without
00007  *    modification, are permitted provided that the following conditions
00008  *    are met:
00009  *
00010  *    * Redistributions of source code must retain the above copyright
00011  *      notice, this list of conditions and the following disclaimer.
00012  *
00013  *    * Redistributions in binary form must reproduce the above copyright
00014  *      notice, this list of conditions and the following disclaimer in
00015  *      the documentation and/or other materials provided with the
00016  *      distribution.
00017  *
00018  *    * Neither the name of the copyright holders nor the names of
00019  *      contributors may be used to endorse or promote products derived
00020  *      from this software without specific prior written permission.
00021  *
00022  *
00023  *    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
00024  *    IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
00025  *    TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00026  *    PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00027  *    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00028  *    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00029  *    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00030  *    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00031  *    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00032  *    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00033  *    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00034  *
00035  *
00036  * $Id$
00037  *
00038  ******************************************************************************/
00039 
00040 
00041 #ifndef __EVENTSEQHEADERSUPPORT_H_7D736FC2E006DD__
00042 #define __EVENTSEQHEADERSUPPORT_H_7D736FC2E006DD__
00043 
00044 
00045 #include "util/endianness.h"
00046 
00047 
00048 namespace famouso {
00049     namespace mw {
00050         namespace afp {
00051             namespace defrag {
00052 
00053 
00062                 template <class DCP>
00063                 class EventSeqHeaderSupport {
00064 
00065                         typedef typename DCP::SizeProp::flen_t   flen_t;
00066 
00068                         bool seq_valid;
00069 
00071                         uint32_t seq;
00072 
00073                     public:
00074 
00076                         EventSeqHeaderSupport() :
00077                                 seq_valid(false), seq(0) {
00078                         }
00079 
00084                         bool check(const uint8_t * data) {
00085                             return (*data & 0xbf) == 0;
00086                         }
00087 
00093                         flen_t read_header(const uint8_t * data) {
00094                             seq = ntohl(*reinterpret_cast<const uint32_t *>(data + 1));
00095                             seq_valid = true;
00096                             return 5;
00097                         }
00098 
00102                         bool occurs() const {
00103                             return seq_valid;
00104                         }
00105 
00106 
00112                         uint32_t get_eseq() const {
00113                             return seq;
00114                         }
00115                 };
00116 
00117 
00118             } // namespace defrag
00119         } // namespace afp
00120     } // namespace mw
00121 } // namespace famouso
00122 
00123 
00124 #endif // __EVENTSEQHEADERSUPPORT_H_7D736FC2E006DD__
00125