Re: [patch, fortran] Large transfer support for IO library

[Jerry DeLisle <jvdelisle at verizon dot net>]

Janne Blomqvist wrote:
>  /*********************************************************************
>    memory stream functions - These are used for internal files
>  
> @@ -641,6 +794,60 @@ mem_alloc_w_at (unix_stream * s, int *le
>  }
>  
>  
> +/* Stream read function for internal units. This is not actually used
> +   at the moment, as all internal IO is formatted and the formatted IO
> +   routines use mem_alloc_r_at function.  */
> +

What are your plans here?  It is my understanding, for example, that the 
standard requires all I/O to internal character array units to be sequential 
formatted.  No other method is permitted.  Am I missing something here?

Regards,

Jerry
> +static int
> +mem_read (unix_stream * s, void * buf, size_t * nbytes)
> +{
> +  void *p;
> +  int tmp;
> +
> +  tmp = *nbytes;
> +  p = mem_alloc_r_at (s, &tmp, -1);
> +  if (p)
> +    {
> +      *nbytes = tmp;
> +      memcpy (buf, p, *nbytes);
> +      return 0;
> +    }
> +  else
> +    {
> +      *nbytes = 0;
> +      return errno;
> +    }
> +}
> +
> +
> +/* Stream write function for internal units. This is not actually used
> +   at the moment, as all internal IO is formatted and the formatted IO
> +   routines use mem_alloc_w_at.  */
> +