On Mon, 1 Feb 2010, Chris Conroy wrote:

> struct SingleRequest has two variables that serve two very similar purposes,
> size and maxdownload. Here are the comments at their declaration.
>
> curl_off_t size; /* -1 if unknown at this point */
>
> curl_off_t maxdownload; /* in bytes, the maximum amount of data to
> fetch,-1 means unlimited */
>
> Yet, in tracing through the code, they seem to be used fairly
> interchangeably. I am curious what the real distinction between the two of
> them is because it's not abundantly clear to me why there should be two
> separate variables given that they seem to (almost?) always be set to the
> same value.

'size' is the discovered size of the entity that is to be downloaded.

'maxdownload' can be a pre-configured maximum amount of data to download, but
if it isn't set to something it is often set to the value of 'size' to make
things handy.

-- 
  / daniel.haxx.se
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