Date: Mon, 26 Apr 2010 13:48:22 +0000 (UTC) From: Lawrence Stewart <lstewart@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/share/man/man9 alq.9 src/sys/kern kern_alq.c src/sys/sys alq.h Message-ID: <201004261352.o3QDqnMA027900@repoman.freebsd.org>
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lstewart 2010-04-26 13:48:22 UTC
FreeBSD src repository
Modified files:
share/man/man9 alq.9
sys/kern kern_alq.c
sys/sys alq.h
Log:
SVN rev 207223 on 2010-04-26 13:48:22Z by lstewart
- Rework the underlying ALQ storage to be a circular buffer, which amongst other
things allows variable length messages to be easily supported.
- Extend KPI with alq_writen() and alq_getn() to support variable length
messages, which is enabled at ALQ creation time depending on the
arguments passed to alq_open(). Also add variants of alq_open() and
alq_post() that accept a flags argument. The KPI is still fully
backwards compatible and shouldn't require any change in ALQ consumers
unless they wish to utilise the new features.
- Introduce the ALQ_NOACTIVATE and ALQ_ORDERED flags to allow ALQ consumers
to have more control over IO scheduling and resource acquisition
respectively.
- Strengthen invariants checking.
- Document ALQ changes in ALQ(9) man page.
Sponsored by: FreeBSD Foundation
Reviewed by: gnn, jeff, rpaulo, rwatson
MFC after: 1 month
Revision Changes Path
1.7 +262 -77 src/share/man/man9/alq.9
1.32 +467 -90 src/sys/kern/kern_alq.c
1.7 +40 -23 src/sys/sys/alq.h
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