mosesdecoder/mert/GzFileBuf.h
2013-05-29 18:16:15 +01:00

34 lines
754 B
C++

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