Date: Mon, 27 Mar 2023 23:39:34 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: f2ec444be523 - main - kqueue1(2): document Message-ID: <202303272339.32RNdYIx063714@gitrepo.freebsd.org>
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The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=f2ec444be523d3d00808ff82a7c690c75defe953 commit f2ec444be523d3d00808ff82a7c690c75defe953 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2023-03-25 23:41:21 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2023-03-27 23:39:26 +0000 kqueue1(2): document Reviewed by: emaste, jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D39271 --- lib/libc/sys/Makefile.inc | 1 + lib/libc/sys/kqueue.2 | 20 +++++++++++++++++++- 2 files changed, 20 insertions(+), 1 deletion(-) diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc index 45287813fe13..54143b288dc4 100644 --- a/lib/libc/sys/Makefile.inc +++ b/lib/libc/sys/Makefile.inc @@ -430,6 +430,7 @@ MLINKS+=jail.2 jail_attach.2 \ jail.2 jail_set.2 MLINKS+=kldunload.2 kldunloadf.2 MLINKS+=kqueue.2 kevent.2 \ + kqueue.2 kqueue1.2 \ kqueue.2 EV_SET.3 MLINKS+=link.2 linkat.2 MLINKS+=madvise.2 posix_madvise.2 diff --git a/lib/libc/sys/kqueue.2 b/lib/libc/sys/kqueue.2 index c8d39d092b4d..c263fa550244 100644 --- a/lib/libc/sys/kqueue.2 +++ b/lib/libc/sys/kqueue.2 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 14, 2022 +.Dd March 26, 2023 .Dt KQUEUE 2 .Os .Sh NAME @@ -38,6 +38,8 @@ .Ft int .Fn kqueue "void" .Ft int +.Fn kqueue1 "u_int flags" +.Ft int .Fo kevent .Fa "int kq" .Fa "const struct kevent *changelist" @@ -90,6 +92,22 @@ flag, then the descriptor table is shared, which will allow sharing of the kqueue between two processes. .Pp The +.Fn kqueue1 +system call also creates a new kernel event queue, and additionally takes +the +.Fa flags +argument, which is a bitwise-inclusive OR of the following flags: +.Bl -tag -width "KQUEUE_CLOEXEC" +.It Fa KQUEUE_CLOEXEC +The returned file descriptor is automatically closed on +.Xr execve 2 +.El +The +.Ql fd = kqueue() +call is equivalent to +.Ql fd = kqueue1(0) . +.Pp +The .Fn kevent system call is used to register events with the queue, and return any pending
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