diff options
Diffstat (limited to 'rtemsbsd/rtems/rtems-bsd-muteximpl.c')
-rw-r--r-- | rtemsbsd/rtems/rtems-bsd-muteximpl.c | 83 |
1 files changed, 9 insertions, 74 deletions
diff --git a/rtemsbsd/rtems/rtems-bsd-muteximpl.c b/rtemsbsd/rtems/rtems-bsd-muteximpl.c index 2bfa3b1e..c68bd461 100644 --- a/rtemsbsd/rtems/rtems-bsd-muteximpl.c +++ b/rtemsbsd/rtems/rtems-bsd-muteximpl.c @@ -41,29 +41,8 @@ #include <machine/rtems-bsd-muteximpl.h> #include <rtems/score/schedulerimpl.h> -#include <rtems/score/threaddispatch.h> #include <rtems/score/threadqimpl.h> -#define INTEND_TO_BLOCK \ - (THREAD_WAIT_CLASS_OBJECT | THREAD_WAIT_STATE_INTEND_TO_BLOCK) - -#define BLOCKED \ - (THREAD_WAIT_CLASS_OBJECT | THREAD_WAIT_STATE_BLOCKED) - -#define INTERRUPT_SATISFIED \ - (THREAD_WAIT_CLASS_OBJECT | THREAD_WAIT_STATE_INTERRUPT_SATISFIED) - -static void -rtems_bsd_mutex_priority_change(Thread_Control *thread, - Priority_Control new_priority, void *context) -{ - rtems_bsd_mutex *m = context; - - _RBTree_Extract(&m->rivals, &thread->RBNode); - _RBTree_Insert(&m->rivals, &thread->RBNode, - _Thread_queue_Compare_priority, false); -} - void rtems_bsd_mutex_lock_more(struct lock_object *lock, rtems_bsd_mutex *m, Thread_Control *owner, Thread_Control *executing, @@ -73,38 +52,14 @@ rtems_bsd_mutex_lock_more(struct lock_object *lock, rtems_bsd_mutex *m, BSD_ASSERT(lock->lo_flags & LO_RECURSABLE); ++m->nest_level; - _ISR_lock_Release_and_ISR_enable(&m->lock, lock_context); + _Thread_queue_Release(&m->queue, lock_context); } else { - Per_CPU_Control *cpu_self; - bool success; - - _Thread_Lock_set(executing, &m->lock); - _Thread_Priority_set_change_handler(executing, - rtems_bsd_mutex_priority_change, m); - ++executing->resource_count; - _RBTree_Insert(&m->rivals, &executing->RBNode, - _Thread_queue_Compare_priority, false); - - cpu_self = _Thread_Dispatch_disable_critical(); - /* Priority inheritance */ - _Scheduler_Change_priority_if_higher(_Scheduler_Get(owner), - owner, executing->current_priority, false); - - _Thread_Wait_flags_set(executing, INTEND_TO_BLOCK); - - _ISR_lock_Release_and_ISR_enable(&m->lock, lock_context); - - _Thread_Set_state(executing, STATES_WAITING_FOR_MUTEX); - - success = _Thread_Wait_flags_try_change(executing, - INTEND_TO_BLOCK, BLOCKED); - if (!success) { - _Thread_Clear_state(executing, - STATES_WAITING_FOR_MUTEX); - } + _Thread_Raise_priority(owner, executing->current_priority); - _Thread_Dispatch_enable(cpu_self); + _Thread_queue_Enqueue_critical(&m->queue, executing, + STATES_WAITING_FOR_MUTEX, WATCHDOG_NO_TIMEOUT, 0, + lock_context); } } @@ -114,40 +69,20 @@ rtems_bsd_mutex_unlock_more(rtems_bsd_mutex *m, Thread_Control *owner, { if (first != NULL) { Thread_Control *new_owner; - bool success; new_owner = THREAD_RBTREE_NODE_TO_THREAD(first); m->owner = new_owner; - _RBTree_Extract(&m->rivals, &new_owner->RBNode); - _Thread_Priority_restore_default_change_handler(new_owner); - _Thread_Lock_restore_default(new_owner); - - success = _Thread_Wait_flags_try_change_critical(new_owner, - INTEND_TO_BLOCK, INTERRUPT_SATISFIED); - if (success) { - _ISR_lock_Release_and_ISR_enable(&m->lock, - lock_context); - } else { - Per_CPU_Control *cpu_self; - - cpu_self = _Thread_Dispatch_disable_critical(); - _ISR_lock_Release_and_ISR_enable(&m->lock, - lock_context); - - _Thread_Clear_state(new_owner, - STATES_WAITING_FOR_MUTEX); - - _Thread_Dispatch_enable(cpu_self); - } + _Thread_queue_Extract_critical(&m->queue, new_owner, + lock_context); } else { - _ISR_lock_Release_and_ISR_enable(&m->lock, lock_context); + _Thread_queue_Release(&m->queue, lock_context); } if (!keep_priority) { Per_CPU_Control *cpu_self; cpu_self = _Thread_Dispatch_disable(); - _Thread_Change_priority(owner, owner->real_priority, true); + _Thread_Restore_priority(owner); _Thread_Dispatch_enable(cpu_self); } } |