cvs commit: src/sys/sys umtx.h src/sys/kern kern_umtx.c

[David Xu]

davidxu     2004-12-30 02:56:17 UTC

  FreeBSD src repository

  Modified files:
    sys/sys              umtx.h 
    sys/kern             kern_umtx.c 
  Log:
  Make umtx_wait and umtx_wake more like linux futex does, it is
  more general than previous. It also lets me implement cancelable point
  in thread library. Also in theory, umtx_lock and umtx_unlock can
  be implemented by using umtx_wait and umtx_wake, all atomic operations
  can be done in userland without kernel's casuptr() function.
  
  Revision  Changes    Path
  1.25      +9 -41     src/sys/kern/kern_umtx.c
  1.9       +7 -9      src/sys/sys/umtx.h