CRC32.h

Go to the documentation of this file.
00001 /*
00002  *    Copyright 2004-2006 Intel Corporation
00003  * 
00004  *    Licensed under the Apache License, Version 2.0 (the "License");
00005  *    you may not use this file except in compliance with the License.
00006  *    You may obtain a copy of the License at
00007  * 
00008  *        http://www.apache.org/licenses/LICENSE-2.0
00009  * 
00010  *    Unless required by applicable law or agreed to in writing, software
00011  *    distributed under the License is distributed on an "AS IS" BASIS,
00012  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  *    See the License for the specific language governing permissions and
00014  *    limitations under the License.
00015  */
00016 
00017 
00018 
00019 #ifndef _OASYS_CRC32_H_
00020 #define _OASYS_CRC32_H_
00021 
00022 #include <sys/types.h>
00023 #include "../compat/inttypes.h"
00024 
00025 namespace oasys {
00026 class CRC32 {
00027 public:
00028     CRC32();
00029 
00030     typedef u_int32_t CRC_t;
00031 
00035     void update(const u_char* buf, size_t length);
00036     void update(const char*   buf, size_t length) {
00037         update((const u_char*)buf, length);
00038     }
00041     CRC_t value();
00042     void  reset();
00043 
00044     static CRC_t from_bytes(u_char* buf);
00045 
00046 private:
00047     CRC_t crc_;
00048 };
00049 }; // namespace oasys
00050 
00051 #endif //_OASYS_CRC32_H_

Generated on Thu Jun 7 12:54:26 2007 for DTN Reference Implementation by  doxygen 1.5.1