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OIOfd.h
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1990-05-19
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232 lines
#ifndef OIOFD_H
#define OIOFD_H
/*$Header: /afs/alw.nih.gov/unix/sun4_40c/usr/local/src/nihcl-3.0/share/lib/RCS/OIOfd.h,v 3.0 90/05/20 00:20:28 kgorlen Rel $*/
/* IOfd.h -- declarations for NIHCL file Object I/O classes
THIS SOFTWARE FITS THE DESCRIPTION IN THE U.S. COPYRIGHT ACT OF A
"UNITED STATES GOVERNMENT WORK". IT WAS WRITTEN AS A PART OF THE
AUTHOR'S OFFICIAL DUTIES AS A GOVERNMENT EMPLOYEE. THIS MEANS IT
CANNOT BE COPYRIGHTED. THIS SOFTWARE IS FREELY AVAILABLE TO THE
PUBLIC FOR USE WITHOUT A COPYRIGHT NOTICE, AND THERE ARE NO
RESTRICTIONS ON ITS USE, NOW OR SUBSEQUENTLY.
Author:
K. E. Gorlen
Computer Systems Laboratory, DCRT
National Institutes of Health
Bethesda, MD 20892
May, 1989
Modification History:
$Log: OIOfd.h,v $
* Revision 3.0 90/05/20 00:20:28 kgorlen
* Release for 1st edition.
*
*/
#include "Object.h"
#include <string.h>
#include <osfcn.h>
class OIOifd : public NIHCL {
int fd; // file descriptor
protected:
virtual Object* readObject(const Class&);
friend Object* Class::readFrom(OIOifd&) const;
public:
OIOifd(int filedesc) { fd = filedesc; }
operator int() { return fd; }
OIOifd& operator>>(char& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(unsigned char& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(short& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(unsigned short& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(int& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(unsigned int& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(long& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(unsigned long& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(float& val) {
get((char*)&val,sizeof(val));
return *this;
}
OIOifd& operator>>(double& val) {
get((char*)&val,sizeof(val));
return *this;
}
int get() { char c; get(c); return c; }
OIOifd& get(char& c) { get(&c,1); return *this; }
OIOifd& get(unsigned char& c) { get(&c,1); return *this; }
OIOifd& get(char*, unsigned size);
OIOifd& get(unsigned char* val, unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(short* val, unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(unsigned short* val, unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(int* val, unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(unsigned int* val, unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(long* val,unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(unsigned long* val,unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(float* val,unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& get(double* val,unsigned size) {
get((char*)val,size*sizeof(*val));
return *this;
}
OIOifd& getCString(char*, unsigned maxlen);
};
class OIOofd : public NIHCL {
int fd; // file descriptor
void writeErr();
protected:
virtual void storeObject(const Object&);
friend void Object::storeOn(OIOofd&) const;
public:
OIOofd(int filedesc) { fd = filedesc; }
operator int() { return fd; }
OIOofd& operator<<(const char* val) {
*this << (unsigned)strlen(val);
put(val,strlen(val));
return *this;
}
OIOofd& operator<<(char val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(unsigned char val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(short val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(unsigned short val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(int val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(unsigned int val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(long val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(unsigned long val) {
put((char*)&val,sizeof(val));
return *this;
}
OIOofd& operator<<(float val) {
put((char*)&val,sizeof(float));
return *this;
}
OIOofd& operator<<(double val) {
put((char*)&val,sizeof(double));
return *this;
}
OIOofd& put(const char* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const unsigned char* val,unsigned size) {
return put((const char*)val, size);
}
OIOofd& put(const short* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const unsigned short* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const int* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const unsigned int* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const long* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const unsigned long* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const float* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& put(const double* val,unsigned size) {
write((const char*)val,size*sizeof(*val));
return *this;
}
OIOofd& putCString(const char*);
OIOofd& write(const char* buf,unsigned nbyte) {
if (::write(fd,buf,nbyte) < 0) writeErr();
return *this;
}
public: // type definitions
enum oioRecordTy { // binary object I/O record type codes
storeOnClassRef, // class reference and object stored
storeOnClass, // class and object stored
storeOnObjectRef // object reference stored
};
};
#endif /* OIOFD_H */