commit 36e54a0d71445673fbdf522fc913a702d0bc99b2
author Maxim Dounin <mdounin@mdounin.ru> Thu Jan 24 21:51:21 2019 +0300
committer Maxim Dounin <mdounin@mdounin.ru> Thu Jan 24 21:51:21 2019 +0300
tree cee040e26a5092b9a4f520cc167131eb9befd69a
parent eb4550ed4c37664ffff14229acd4b53017a91a68

Win32: added WSAPoll() support.

WSAPoll() is only available with Windows Vista and newer (and only
available during compilation if _WIN32_WINNT >= 0x0600).  To make
sure the code works with Windows XP, we do not redefine _WIN32_WINNT,
but instead load WSAPoll() dynamically if it is not available during
compilation.

Also, sockets are not guaranteed to be small integers on Windows.
So an index array is used instead of NGX_USE_FD_EVENT to map
events to connections.