kernel/fiasco/src/kern/thread-ulock.cpp

   1 INTERFACE [ulock]:
   2
   3 #include "prio_list.h"
   4
   5 EXTENSION class Thread
   6 {
   7 private:
   8   Locked_prio_list *_wait_queue;
   9 };
  10
  11
  12 //------------------------------------------------------------------------
  13 IMPLEMENTATION [ulock]:
  14
  15 PUBLIC inline
  16 Locked_prio_list *
  17 Thread::wait_queue() const
  18 { return _wait_queue; }
  19
  20
  21 PUBLIC inline
  22 void
  23 Thread::wait_queue(Locked_prio_list *wq)
  24 { _wait_queue = wq; }
  25
  26
  27 PRIVATE inline NEEDS[Thread::wait_queue]
  28 void
  29 Thread::wait_queue_kill()
  30 {
  31   while (Locked_prio_list *q = wait_queue())
  32     {
  33       Lock_guard<Spin_lock> g(q);
  34       if (wait_queue() == q)
  35         {
  36           sender_dequeue(q);
  37           wait_queue(0);
  38           return;
  39         }
  40     }
  41 }
  42
  43 //------------------------------------------------------------------------
  44 IMPLEMENTATION [!ulock]:
  45
  46 PRIVATE inline
  47 void
  48 Thread::wait_queue_kill()
  49 {}