cvs commit: src/lib/libthr/thread thr_cond.c

[Mike Makonnen]

mtm         2003/05/23 18:02:16 PDT

  FreeBSD src repository

  Modified files:
    lib/libthr/thread    thr_cond.c 
  Log:
  Lock the cond queue (condition variables):
  Access to the thread's flags and state is protected by
  _thread_critical_enter/exit(). When a thread is signaled with a condition
  its state must be protected by locking it and disabling
  signals before it is taken of the waiters' queue.
  
  Move the implementation of pthread_cond_signal() and pthread_cond_broadcast()
  into one function, cond_signal(). Its behaviour is determined by the
  last argument, int broadcast. If this is set to 1 it will remove all
  waiters, otherwise it will wake up only the first waiter thread.
  
  Remove an extraneous call to pthread_testcancel().
  
  Approved by:    re/blanket libthr
  
  Revision  Changes    Path
  1.6       +43 -70    src/lib/libthr/thread/thr_cond.c