72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef WXSTREAM_HELPER_H
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#define WXSTREAM_HELPER_H
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#include <vector>
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#include <wx/log.h>
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#include <wx/wfstream.h>
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static bool CopyStreamData( wxInputStream& inputStream, wxOutputStream& outputStream,
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wxFileOffset size )
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{
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constexpr size_t bufSize = 128 * 1024;
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std::vector<wxChar> buf( bufSize );
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wxFileOffset copiedData = 0;
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wxFileOffset readSize = bufSize;
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for( ; ; )
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{
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if(size != -1 && copiedData + readSize > size )
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readSize = size - copiedData;
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inputStream.Read( buf.data(), readSize );
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size_t actuallyRead = inputStream.LastRead();
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outputStream.Write( buf.data(), actuallyRead );
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if( outputStream.LastWrite() != actuallyRead )
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{
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wxLogError( _("Failed to output data") );
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//return false;
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}
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if( size == -1 )
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{
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if( inputStream.Eof() )
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break;
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}
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else
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{
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copiedData += actuallyRead;
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if( copiedData >= size )
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break;
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}
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}
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return true;
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}
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#endif // WXSTREAM_HELPER_H
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