Date: Fri, 9 Mar 2007 22:41:02 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/share/man/man9 Makefile condvar.9 lock.9 mi_switch.9 mtx_pool.9 mutex.9 rwlock.9 sleep.9 sleepqueue.9 sx.9 thread_exit.9 src/sys/kern kern_synch.c src/sys/sys mutex.h rwlock.h sleepqueue.h sx.h systm.h Message-ID: <200703092241.l29Mf2Ds062856@repoman.freebsd.org>
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jhb 2007-03-09 22:41:01 UTC
FreeBSD src repository
Modified files:
share/man/man9 Makefile condvar.9 lock.9 mi_switch.9
mtx_pool.9 mutex.9 rwlock.9 sleep.9
sleepqueue.9 sx.9 thread_exit.9
sys/kern kern_synch.c
sys/sys mutex.h rwlock.h sleepqueue.h sx.h
systm.h
Log:
Allow threads to atomically release rw and sx locks while waiting for an
event. Locking primitives that support this (mtx, rw, and sx) now each
include their own foo_sleep() routine.
- Rename msleep() to _sleep() and change it's 'struct mtx' object to a
'struct lock_object' pointer. _sleep() uses the recently added
lc_unlock() and lc_lock() function pointers for the lock class of the
specified lock to release the lock while the thread is suspended.
- Add wrappers around _sleep() for mutexes (mtx_sleep()), rw locks
(rw_sleep()), and sx locks (sx_sleep()). msleep() still exists and
is now identical to mtx_sleep(), but it is deprecated.
- Rename SLEEPQ_MSLEEP to SLEEPQ_SLEEP.
- Rewrite much of sleep.9 to not be msleep(9) centric.
- Flesh out the 'RETURN VALUES' section in sleep.9 and add an 'ERRORS'
section.
- Add __nonnull(1) to _sleep() and msleep_spin() so that the compiler will
warn if you try to pass a NULL wait channel. The functions already have
a KASSERT to that effect.
Revision Changes Path
1.300 +3 -0 src/share/man/man9/Makefile
1.17 +1 -1 src/share/man/man9/condvar.9
1.15 +4 -4 src/share/man/man9/lock.9
1.20 +7 -6 src/share/man/man9/mi_switch.9
1.7 +2 -3 src/share/man/man9/mtx_pool.9
1.54 +13 -1 src/share/man/man9/mutex.9
1.9 +10 -0 src/share/man/man9/rwlock.9
1.59 +111 -68 src/share/man/man9/sleep.9
1.15 +5 -5 src/share/man/man9/sleepqueue.9
1.36 +11 -1 src/share/man/man9/sx.9
1.3 +2 -2 src/share/man/man9/thread_exit.9
1.292 +33 -28 src/sys/kern/kern_synch.c
1.91 +3 -0 src/sys/sys/mutex.h
1.9 +2 -0 src/sys/sys/rwlock.h
1.11 +1 -1 src/sys/sys/sleepqueue.h
1.27 +2 -0 src/sys/sys/sx.h
1.252 +9 -4 src/sys/sys/systm.h
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