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#if !defined(__xiofile_h)
#define __xiofile_h
#include "xfile.h"
class DLL_EXP CxIOFile : public CxFile
{
public:
CxIOFile(FILE* fp = NULL)
{
m_fp = fp;
m_bCloseFile = (bool)(fp==0);
}
~CxIOFile()
{
Close();
}
//////////////////////////////////////////////////////////
bool Open(const char *filename, const char *mode)
{
if (m_fp) return false; // Can't re-open without closing first
m_fp = fopen(filename, mode);
if (!m_fp) return false;
m_bCloseFile = true;
return true;
}
//////////////////////////////////////////////////////////
virtual bool Close()
{
int iErr = 0;
if ( (m_fp) && (m_bCloseFile) ){
iErr = fclose(m_fp);
m_fp = NULL;
}
return (bool)(iErr==0);
}
//////////////////////////////////////////////////////////
virtual size_t Read(void *buffer, size_t size, size_t count)
{
if (!m_fp) return 0;
return fread(buffer, size, count, m_fp);
}
//////////////////////////////////////////////////////////
virtual size_t Write(const void *buffer, size_t size, size_t count)
{
if (!m_fp) return 0;
return fwrite(buffer, size, count, m_fp);
}
//////////////////////////////////////////////////////////
virtual bool Seek(long offset, int origin)
{
if (!m_fp) return false;
return (bool)(fseek(m_fp, offset, origin) == 0);
}
//////////////////////////////////////////////////////////
virtual long Tell()
{
if (!m_fp) return 0;
return ftell(m_fp);
}
//////////////////////////////////////////////////////////
virtual long Size()
{
if (!m_fp) return -1;
long pos,size;
pos = ftell(m_fp);
fseek(m_fp, 0, SEEK_END);
size = ftell(m_fp);
fseek(m_fp, pos,SEEK_SET);
return size;
}
//////////////////////////////////////////////////////////
virtual bool Flush()
{
if (!m_fp) return false;
return (bool)(fflush(m_fp) == 0);
}
//////////////////////////////////////////////////////////
virtual bool Eof()
{
if (!m_fp) return true;
return (bool)(feof(m_fp) != 0);
}
//////////////////////////////////////////////////////////
virtual long Error()
{
if (!m_fp) return -1;
return ferror(m_fp);
}
//////////////////////////////////////////////////////////
virtual bool PutC(unsigned char c)
{
if (!m_fp) return false;
return (bool)(fputc(c, m_fp) == c);
}
//////////////////////////////////////////////////////////
virtual long GetC()
{
if (!m_fp) return EOF;
return getc(m_fp);
}
//////////////////////////////////////////////////////////
protected:
FILE *m_fp;
bool m_bCloseFile;
};
#endif
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Software developer and Microsoft Trainer, Athens, Greece (MCT, MCSD.net, MCSE 2003, MCDBA 2000,MCTS, MCITP, MCIPD).