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59 lines
2.1 KiB
Objective-C
59 lines
2.1 KiB
Objective-C
/*
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* XADCRCHandle.h
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*
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* Copyright (c) 2017-present, MacPaw Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#import "CSStreamHandle.h"
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#import "Checksums.h"
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#import "Progress.h"
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#import "CRC.h"
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typedef uint32_t XADCRCTransformationFunction(uint32_t crc,id context);
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@interface XADCRCHandle:CSStreamHandle
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{
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uint32_t crc,initcrc,compcrc;
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const uint32_t *table;
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XADCRCTransformationFunction *transformationfunction;
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id transformationcontext;
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}
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+(XADCRCHandle *)IEEECRC32HandleWithHandle:(CSHandle *)handle
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correctCRC:(uint32_t)correctcrc conditioned:(BOOL)conditioned;
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+(XADCRCHandle *)IEEECRC32HandleWithHandle:(CSHandle *)handle length:(off_t)length
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correctCRC:(uint32_t)correctcrc conditioned:(BOOL)conditioned;
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+(XADCRCHandle *)IBMCRC16HandleWithHandle:(CSHandle *)handle length:(off_t)length
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correctCRC:(uint32_t)correctcrc conditioned:(BOOL)conditioned;
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+(XADCRCHandle *)CCITTCRC16HandleWithHandle:(CSHandle *)handle length:(off_t)length
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correctCRC:(uint32_t)correctcrc conditioned:(BOOL)conditioned;
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-(id)initWithHandle:(CSHandle *)handle length:(off_t)length initialCRC:(uint32_t)initialcrc
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correctCRC:(uint32_t)correctcrc CRCTable:(const uint32_t *)crctable;
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-(void)dealloc;
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-(void)setCRCTransformationFunction:(XADCRCTransformationFunction *)function context:(id)context;
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-(void)resetStream;
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-(int)streamAtMost:(int)num toBuffer:(void *)buffer;
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-(BOOL)hasChecksum;
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-(BOOL)isChecksumCorrect;
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@end
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