Subversion Repositories Kolibri OS

#include "kolibc.h"

#include "kolibri.h"

int fill_buff(FILE* f);

int fread(void* dst,size_t size,size_t count,FILE* f)

{ size_t req;

  size_t cnt;

  char *p = dst;

  if(!((f->mode & FILE_OPEN_READ)|(f->mode & FILE_OPEN_PLUS)))

		return 0;

  req=count*size;

  if (req+f->filepos+f->strpos > f->filesize)

		req=f->filesize-f->filepos-f->strpos;

  count=0;

  while(req)

  {

    if (f->remain)

    { cnt= req > f->remain ? f->remain : req;

	  memcpy(p,f->stream,cnt);

	  p+=cnt;

	  f->stream+=cnt;

	  f->strpos+=cnt;

	  f->remain-=cnt;

	  count+=cnt;

	  req-=cnt;

	}

	else

	{

	  f->filepos+=4096;

	  if(!fill_buff(f))  //eof or error

	    break;

	}

  };

  return count/size;

}

int fill_buff(FILE* f)

{ int err;

  size_t bytes;

  err=read_file(f->filename,f->buffer,f->filepos,

                             4096,&bytes);

  if (err) return 0;

  if(!bytes) return 0;

  f->stream = f->buffer;

  f->remain = 4096;

  f->strpos=0;

  return bytes;

};