mirror of
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69 lines
1.8 KiB
Objective-C
69 lines
1.8 KiB
Objective-C
/*
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* CSSegmentedHandle.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 "CSHandle.h"
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#define CSSegmentedHandle XADSegmentedHandle
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extern NSString *CSNoSegmentsException;
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extern NSString *CSSizeOfSegmentUnknownException;
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@interface CSSegmentedHandle:CSHandle
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{
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NSInteger count;
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NSInteger currindex;
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CSHandle *currhandle;
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off_t *segmentends;
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NSArray *segmentsizes;
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}
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// Initializers
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-(id)init;
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-(id)initAsCopyOf:(CSSegmentedHandle *)other;
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-(void)dealloc;
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// Public methods
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-(CSHandle *)currentHandle;
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-(NSArray *)segmentSizes;
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// Implemented by this class
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-(off_t)fileSize;
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-(off_t)offsetInFile;
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-(BOOL)atEndOfFile;
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-(void)seekToFileOffset:(off_t)offs;
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-(void)seekToEndOfFile;
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-(int)readAtMost:(int)num toBuffer:(void *)buffer;
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-(NSString *)name;
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-(NSString *)description;
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// Implemented by subclasses
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-(NSInteger)numberOfSegments;
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-(off_t)segmentSizeAtIndex:(NSInteger)index;
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-(CSHandle *)handleAtIndex:(NSInteger)index;
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// Internal methods
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-(void)_open;
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-(void)_setCurrentIndex:(NSInteger)newindex;
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-(void)_raiseNoSegments;
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-(void)_raiseSizeUnknownForSegment:(NSInteger)i;
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@end
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