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Copyright (C) 2000-2007 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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/* file.cpp implements File Sources and Sinks
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#include "runtime.hpp"
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FileSource::FileSource(const char* fname, Source& source)
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file_ = fopen(fname, "rb");
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if (file_) get(source);
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FileSource::~FileSource()
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// return size of source from beginning or current position
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word32 FileSource::size(bool use_current)
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long current = ftell(file_);
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fseek(file_, 0, SEEK_SET);
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fseek(file_, 0, SEEK_END);
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long end = ftell(file_);
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fseek(file_, current, SEEK_SET);
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word32 FileSource::size_left()
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// fill file source from source
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word32 FileSource::get(Source& source)
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if (source.size() < sz)
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size_t bytes = fread(source.buffer_.get_buffer(), 1, sz, file_);
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FileSink::FileSink(const char* fname, Source& source)
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file_ = fopen(fname, "wb");
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if (file_) put(source);
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// fill source from file sink
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void FileSink::put(Source& source)
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fwrite(source.get_buffer(), 1, source.size(), file_);
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// swap with other and reset to beginning
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void Source::reset(ByteBlock& otherBlock)
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buffer_.Swap(otherBlock);