cvs commit: src/sys/kern kern_rwlock.c src/sys/sys rwlock.h

[Attilio Rao <attilio_(_at_)_FreeBSD_(_dot_)_org>]

attilio     2008-04-01 20:31:55 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_rwlock.c 
    sys/sys              rwlock.h 
  Log:
  Add rw_try_rlock() and rw_try_wlock() to rwlocks.
  These functions try the specified operation (rlocking and wlocking) and
  true is returned if the operation completes, false otherwise.
  
  The KPI is enriched by this commit, so __FreeBSD_version bumping and
  manpage updating will happen soon.
  
  Requested by:   jeff, kris
  
  Revision  Changes    Path
  1.37      +49 -0     src/sys/kern/kern_rwlock.c
  1.17      +4 -0      src/sys/sys/rwlock.h
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