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62 lines
1.7 KiB
Objective-C
62 lines
1.7 KiB
Objective-C
/*
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* Progress.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 "Progress.h"
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@implementation CSHandle (Progress)
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-(double)estimatedProgress
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{
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off_t size=[self fileSize];
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if(size==CSHandleMaxLength) return 0;
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if(size==1) return 1;
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return (double)[self offsetInFile]/(double)size;
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}
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@end
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@implementation CSStreamHandle (progress)
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-(double)estimatedProgress
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{
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if(streamlength==CSHandleMaxLength)
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{
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if(input) return [input->parent estimatedProgress]; // TODO: better estimation
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else return 0;
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}
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else return (double)streampos/(double)streamlength;
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}
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@end
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@implementation CSZlibHandle (Progress)
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-(double)estimatedProgress { return [parent estimatedProgress]; } // TODO: better estimation using buffer?
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@end
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@implementation CSBzip2Handle (progress)
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-(double)estimatedProgress { return [parent estimatedProgress]; } // TODO: better estimation using buffer?
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@end
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// TODO: more handles like LZMA?
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