Date: Sun, 2 Oct 2016 19:37:08 +0300 From: Konstantin Belousov <kostikbel@gmail.com> To: Lewis Donzis <lew@perftech.com> Cc: Jilles Tjoelker <jilles@stack.nl>, deischen@freebsd.org, freebsd-arch@freebsd.org Subject: Re: mq on kqueue broken after upgrade to FreeBSD 11 Message-ID: <20161002163708.GG38409@kib.kiev.ua> In-Reply-To: <7A72D37B-6C57-41FE-893F-592235A19D9D@perftech.com> References: <19A6EEAA-C68E-4DAD-B98F-4D904734BD8B@perftech.com> <20160930152006.GS38409@kib.kiev.ua> <20160930184418.1047afc2@kan> <20161001092515.GW38409@kib.kiev.ua> <20161001201655.GA91457@stack.nl> <20161001210722.GC38409@kib.kiev.ua> <20161001231524.GB91457@stack.nl> <20161002114613.GE38409@kib.kiev.ua> <20161002132242.GA2628@stack.nl> <7A72D37B-6C57-41FE-893F-592235A19D9D@perftech.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, Oct 02, 2016 at 09:11:12AM -0500, Lewis Donzis wrote: > Technically, neither are mqueues. The only thing "the int" can be used for is select(), poll(), and kevent(). You can???t (or at least shouldn???t) pass it to any of the other system calls that accept fds. Technically, mqueues are file descriptors. FWIW, allowed operations (in the sense of doing something instead of returning errors) are, besides polling, also stat, chmod, chown. They are enumerable as normal elements of the process' file descriptor table, inherited on fork, and you can and should close(2) them.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20161002163708.GG38409>