#554 curl_multi_fdset: max_fd will contain -1

[Olaf van der Spek]

Hi,

man select

> n is the highest-numbered descriptor in any of the
three sets, plus 1.

http://curl.haxx.se/libcurl/c/curl_multi_fdset.html

> If no file descriptors are set by libcurl, max_fd
will contain -1 when this function returns.

Shouldn't this be 0 instead of -1?
And wouldn't it be better to use max_fd as in in/out
param so it can be easier used with multiple calls to
curl_multi_fdset?

[Olaf van der Spek]

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Nevermind about the max_fd issue, you're supposed to add 1
before you call select.
The out vs in/out issue still stands.

[Daniel Stenberg]

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Perhaps, but this is the API as it works today and it seems
like a very minor change that would have a serious impact on
all existing applications using this function.