00001 #ifndef __XRDCKSCALC_HH__ 00002 #define __XRDCKSCALC_HH__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d C k s C a l c . h h */ 00006 /* */ 00007 /* (c) 2011 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /* All Rights Reserved */ 00009 /* Produced by Andrew Hanushevsky for Stanford University under contract */ 00010 /* DE-AC02-76-SFO0515 with the Department of Energy */ 00011 /* */ 00012 /* This file is part of the XRootD software suite. */ 00013 /* */ 00014 /* XRootD is free software: you can redistribute it and/or modify it under */ 00015 /* the terms of the GNU Lesser General Public License as published by the */ 00016 /* Free Software Foundation, either version 3 of the License, or (at your */ 00017 /* option) any later version. */ 00018 /* */ 00019 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00020 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00021 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00022 /* License for more details. */ 00023 /* */ 00024 /* You should have received a copy of the GNU Lesser General Public License */ 00025 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00026 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00027 /* */ 00028 /* The copyright holder's institutional names and contributor's names may not */ 00029 /* be used to endorse or promote products derived from this software without */ 00030 /* specific prior written permission of the institution or contributor. */ 00031 /******************************************************************************/ 00032 00039 class XrdCksCalc 00040 { 00041 public: 00042 00043 //------------------------------------------------------------------------------ 00052 //------------------------------------------------------------------------------ 00053 00054 virtual char *Calc(const char *Buff, int BLen) 00055 {Init(); Update(Buff, BLen); return Final();} 00056 00057 //------------------------------------------------------------------------------ 00063 //------------------------------------------------------------------------------ 00064 00065 virtual char *Current() {return Final();} 00066 00067 //------------------------------------------------------------------------------ 00072 //------------------------------------------------------------------------------ 00073 00074 virtual char *Final() = 0; 00075 00076 //------------------------------------------------------------------------------ 00079 //------------------------------------------------------------------------------ 00080 00081 virtual void Init() = 0; 00082 00083 //------------------------------------------------------------------------------ 00087 //------------------------------------------------------------------------------ 00088 virtual 00089 XrdCksCalc *New() = 0; 00090 00091 //------------------------------------------------------------------------------ 00093 //------------------------------------------------------------------------------ 00094 00095 virtual void Recycle() {delete this;} 00096 00097 //------------------------------------------------------------------------------ 00105 //------------------------------------------------------------------------------ 00106 00107 virtual const char *Type(int &csSize) = 0; 00108 00109 //------------------------------------------------------------------------------ 00115 //------------------------------------------------------------------------------ 00116 00117 virtual void Update(const char *Buff, int BLen) = 0; 00118 00119 //------------------------------------------------------------------------------ 00121 //------------------------------------------------------------------------------ 00122 00123 XrdCksCalc() {} 00124 00125 //------------------------------------------------------------------------------ 00127 //------------------------------------------------------------------------------ 00128 00129 virtual ~XrdCksCalc() {} 00130 }; 00131 00132 /******************************************************************************/ 00133 /* C h e c k s u m O b j e c t C r e a t o r */ 00134 /******************************************************************************/ 00135 00136 //------------------------------------------------------------------------------ 00150 //------------------------------------------------------------------------------ 00151 00158 //------------------------------------------------------------------------------ 00164 //------------------------------------------------------------------------------ 00165 00171 #endif