Commit Graph

9 Commits

Author SHA1 Message Date
Stefano Ceccherini
6e29a04d36 Patch by Dustin Howett which 'modularizes' timers. The best timer is
automatically selected at boot time. Pit and Apic timers are implemented
for now. Thanks Dustin!



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26265 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-07-05 20:40:06 +00:00
Ingo Weinhold
e01cebeb0a * cancel_timer():
- If the hook of the timer we're cancelling is currently being
    executed, we do now wait till it is finished. This is how the BeBook
    specifies the function to behave.
  - Periodic timers would not be cancelled, if their hook was being
    invoked at the same time, since they weren't in the queue during
    that time.
  - Since we know the CPU on which the timer is scheduled (timer::cpu),
    we don't have to look through any other CPU queue to find it.
  - Fixed the return value. It should report whether the timer had
    already fired, and was not always doing that.
* Added private add_timer() flag B_TIMER_ACQUIRE_THREAD_LOCK. It causes
  the thread spinlock to be acquired before the event hook is called.
  cancel_timer() doesn't wait for timers with the flag set. Instead we
  check in the timer interrupt function after acquiring the thread
  spinlock whether the timer was cancelled in the meantime. Calling
  cancel_timer() with the thread spinlock being held does thus avoid any
  race conditions and won't deadlock, if the event hook needs to acquire
  the thread spinlock, too. This feature proves handy for some kernel
  internal needs.
* The scheduler uses a B_TIMER_ACQUIRE_THREAD_LOCK timer now and
  cancel_timer() instead of the no longer needed
  _local_timer_cancel_event().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25098 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-04-22 15:29:22 +00:00
Axel Dörfler
74b043d98d Removed execute property that was set accidently (since CVS days).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@11896 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-03-18 01:50:45 +00:00
Axel Dörfler
188b2566b6 Cleanup, fixed return codes.
Removed the local_timer_cancel_event() function, since it is not used anywhere.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6973 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-03-14 18:03:18 +00:00
Axel Dörfler
564cba312e Some header work: removed unnecessary dependencies to stage2.h, fixed
some broken C++ export definitions, added missing licenses etc.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3152 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-05-03 16:03:26 +00:00
lillo
5cdacbaabb *LOTS* of small changes to make the kernel compatible with Be's KernelExport.h
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1683 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-10-26 16:13:36 +00:00
lillo
65918f386e forgot a little thing
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@355 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-20 23:06:32 +00:00
lillo
2880b9ff65 beos compatible timer routines and style cleanups in timer and sem code; also doxygened timer.h
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@354 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-20 22:53:23 +00:00
ejakowatz
52a3801208 It is accomplished ...
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00