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34 lines
758 B
C++
34 lines
758 B
C++
#ifndef MERT_GZFILEBUF_H_
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#define MERT_GZFILEBUF_H_
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#include <streambuf>
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#include <zlib.h>
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class GzFileBuf : public std::streambuf
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{
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public:
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explicit GzFileBuf(const char* filename);
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virtual ~GzFileBuf();
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protected:
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virtual int_type overflow(int_type c);
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// Read one character
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virtual int_type underflow();
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virtual std::streampos seekpos(
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std::streampos sp,
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std::ios_base::openmode which = std::ios_base::in | std::ios_base::out);
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virtual std::streamsize xsgetn(char* s, std::streamsize num);
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// write multiple characters
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virtual std::streamsize xsputn(const char* s, std::streamsize num);
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private:
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gzFile m_gz_file;
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static const unsigned int kBufSize = 1024;
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char m_buf[kBufSize];
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};
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#endif // MERT_GZFILEBUF_H_
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