Poller does not work on Windows

[andreaspetrovic]

I tried to poll a REQ socket on Windows 11 with zeromq version 4.3.5, but the poll function never returned the right result (checked with pyzmq). The problem is that zeromq the poll-item file descriptor is unsigned __int64 on 64 bit Windows system, whereas in the nim bindings it's always a cint. When using my own poll-item struct and bindings with uint64 as file descriptor, it works.

type
  PollItem = object
    sock: pointer
    fd: uint64
    events: cshort
    revents: cshort

proc myPoll(items: ptr PollItem, len: cint, timeout: clong): cint {.importc: "zmq_poll", dynlib: "libzmq-v142-mt-4_3_5".}

Cheers,
Andreas

[Clonkk]

I don't have a windows machine so I cannot look at it; but if you make a PR i'll make sure to look at it.

Bonus point if you are familiar with windows and can make windows CI works 😄