mirror of
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72 lines
1.9 KiB
Objective-C
72 lines
1.9 KiB
Objective-C
/*
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* XADCABBlockHandle.m
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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 "XADCABBlockHandle.h"
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#import "XADException.h"
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@implementation XADCABBlockHandle
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-(id)initWithBlockReader:(XADCABBlockReader *)blockreader
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{
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if((self=[super initWithParentHandle:[blockreader handle] length:[blockreader uncompressedLength]]))
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{
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blocks=[blockreader retain];
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}
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return self;
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}
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-(void)dealloc
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{
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[blocks release];
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[super dealloc];
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}
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-(void)resetBlockStream
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{
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[blocks restart];
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[self resetCABBlockHandle];
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}
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-(int)produceBlockAtOffset:(off_t)pos
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{
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int complen,uncomplen;
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if([blocks readNextBlockToBuffer:inbuffer compressedLength:&complen
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uncompressedLength:&uncomplen]) [self endBlockStream];
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return [self produceCABBlockWithInputBuffer:inbuffer length:complen atOffset:pos length:uncomplen];
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}
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-(void)resetCABBlockHandle {}
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-(int)produceCABBlockWithInputBuffer:(uint8_t *)buffer length:(int)length atOffset:(off_t)pos length:(int)uncomplength { return 0; }
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@end
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@implementation XADCABCopyHandle
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-(int)produceCABBlockWithInputBuffer:(uint8_t *)buffer length:(int)length atOffset:(off_t)pos length:(int)uncomplength
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{
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[self setBlockPointer:buffer];
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return length;
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}
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@end
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