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// Copyright (C) 1999-2018
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#ifndef __fitsstream_h__
#define __fitsstream_h__
#include "file.h"
#include "zlib.h"
typedef struct gzStream_ {
z_stream zstream;
int id;
int transparent;
unsigned char header[2];
int useHeader;
unsigned char* buf;
} *gzStream;
template<class T>
class FitsStream : public FitsFile {
protected:
T stream_;
FitsFile::FlushMode flush_;
int dataManage_; // flag, true if we manage data
FitsHead* headRead();
int dataRead(size_t bytes, int validate =1);
void dataSkip(size_t);
void dataSkipBlock(size_t);
void skipEnd();
size_t read(char*, size_t);
void close();
void found();
void error();
public:
FitsStream();
virtual ~FitsStream();
T stream() {return stream_;}
FitsFile::FlushMode flush() {return flush_;}
int dataManage() {return dataManage_;}
void done() {close();}
};
template<class T>
class FitsFitsStream : public virtual FitsStream<T> {
protected:
void processExact();
void processRelax();
public:
FitsFitsStream(FitsFile::ScanMode, FitsFile::FlushMode);
};
template<class T>
class FitsFitsNextStream : public FitsStream<T> {
public:
FitsFitsNextStream(FitsFile* prev);
};
template<class T>
class FitsArrStream : public virtual FitsStream<T> {
public:
FitsArrStream(FitsFile::FlushMode);
};
template<class T>
class FitsNRRDStream : public virtual FitsStream<T> {
public:
FitsNRRDStream(FitsFile::FlushMode);
};
template<class T>
class FitsMosaicStream : public virtual FitsStream<T> {
public:
FitsMosaicStream(FitsFile::FlushMode);
};
template<class T>
class FitsMosaicNextStream : public FitsStream<T> {
public:
FitsMosaicNextStream(FitsFile* prev, FitsFile::FlushMode);
};
#endif
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