topic epoll for VMS in Operating System - OpenVMS

epoll for VMS

Tim Platten — Thu, 17 Sep 2009 14:27:04 GMT

Hi,

Does anybody know whether there any plans to implement the Linux epoll facility on VMS? Failing that, whether anybody has attempted to write their own?

I need it for a large porting exercise I'm currently undertaking.

TIA,

Tim

Re: epoll for VMS

Hoff — Thu, 17 Sep 2009 16:04:14 GMT

poll() is available in current versions.

epoll() is centrally Linux; it's not particularly portable to other platforms.

The OpenVMS I/O implementation is fundamentally different than how Linux has implemented that task; in recent applications, OpenVMS tends to be KP Threads and ASTs and system services and such.

For the literal question around the availability of epoll(), ask HP directly. They're the folks that know, and somebody that's in a position to know (or to add epoll() or poll() to a future version) may or may not be reading here.

Re: epoll for VMS

Alex Chupahin — Wed, 21 Oct 2009 09:07:47 GMT

Also, there is some emulation for poll working
socket and pipes(mailboxes) both in the same moment call.