diff options
Diffstat (limited to 'common/src/tx_mutex_priority_change.c')
| -rw-r--r-- | common/src/tx_mutex_priority_change.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/common/src/tx_mutex_priority_change.c b/common/src/tx_mutex_priority_change.c index 809d0a21..d4945d83 100644 --- a/common/src/tx_mutex_priority_change.c +++ b/common/src/tx_mutex_priority_change.c @@ -116,17 +116,17 @@ UINT map_index; /* Change thread priority to the new mutex priority-inheritance priority. */ thread_ptr -> tx_thread_priority = new_priority; - + /* Determine how to setup the thread's preemption-threshold. */ if (thread_ptr -> tx_thread_user_preempt_threshold < new_priority) { - + /* Change thread preemption-threshold to the user's preemption-threshold. */ thread_ptr -> tx_thread_preempt_threshold = thread_ptr -> tx_thread_user_preempt_threshold; } else { - + /* Change the thread preemption-threshold to the new threshold. */ thread_ptr -> tx_thread_preempt_threshold = new_priority; } @@ -156,22 +156,22 @@ UINT map_index; /* Call actual non-interruptable thread suspension routine. */ _tx_thread_system_ni_suspend(thread_ptr, ((ULONG) 0)); - /* At this point, the preempt disable flag is still set, so we still have + /* At this point, the preempt disable flag is still set, so we still have protection against all preemption. */ /* Change thread priority to the new mutex priority-inheritance priority. */ thread_ptr -> tx_thread_priority = new_priority; - + /* Determine how to setup the thread's preemption-threshold. */ if (thread_ptr -> tx_thread_user_preempt_threshold < new_priority) { - + /* Change thread preemption-threshold to the user's preemption-threshold. */ thread_ptr -> tx_thread_preempt_threshold = thread_ptr -> tx_thread_user_preempt_threshold; } else { - + /* Change the thread preemption-threshold to the new threshold. */ thread_ptr -> tx_thread_preempt_threshold = new_priority; } @@ -198,29 +198,29 @@ UINT map_index; /* Restore interrupts. */ TX_RESTORE - /* The thread is ready and must first be removed from the list. Call the + /* The thread is ready and must first be removed from the list. Call the system suspend function to accomplish this. */ _tx_thread_system_suspend(thread_ptr); /* Disable interrupts. */ TX_DISABLE - /* At this point, the preempt disable flag is still set, so we still have + /* At this point, the preempt disable flag is still set, so we still have protection against all preemption. */ /* Change thread priority to the new mutex priority-inheritance priority. */ thread_ptr -> tx_thread_priority = new_priority; - + /* Determine how to setup the thread's preemption-threshold. */ if (thread_ptr -> tx_thread_user_preempt_threshold < new_priority) { - + /* Change thread preemption-threshold to the user's preemption-threshold. */ thread_ptr -> tx_thread_preempt_threshold = thread_ptr -> tx_thread_user_preempt_threshold; } else { - + /* Change the thread preemption-threshold to the new threshold. */ thread_ptr -> tx_thread_preempt_threshold = new_priority; } @@ -240,14 +240,14 @@ UINT map_index; /* Disable interrupts. */ TX_DISABLE #endif - + /* Pickup the next thread to execute. */ next_execute_ptr = _tx_thread_execute_ptr; /* Determine if this thread is not the next thread to execute. */ if (thread_ptr != next_execute_ptr) { - + /* Make sure the thread is still ready. */ if (thread_ptr -> tx_thread_state == TX_READY) { @@ -269,7 +269,7 @@ UINT map_index; /* Determine if we moved to a lower priority. If so, move the thread to the front of its priority list. */ if (original_priority < new_priority) { - + /* Ensure that this thread is placed at the front of the priority list. */ _tx_thread_priority_list[thread_ptr -> tx_thread_priority] = thread_ptr; } @@ -287,7 +287,7 @@ UINT map_index; /* Compare the next thread to execute thread's priority against the thread's preemption-threshold. */ if (thread_ptr -> tx_thread_preempt_threshold <= next_execute_ptr -> tx_thread_priority) { - + /* We must swap execute pointers to enforce the preemption-threshold of a thread coming out of priority inheritance. */ _tx_thread_execute_ptr = thread_ptr; @@ -295,7 +295,7 @@ UINT map_index; /* Determine if we moved to a lower priority. If so, move the thread to the front of its priority list. */ if (original_priority < new_priority) { - + /* Ensure that this thread is placed at the front of the priority list. */ _tx_thread_priority_list[thread_ptr -> tx_thread_priority] = thread_ptr; } @@ -330,7 +330,7 @@ UINT map_index; } #ifndef TX_NOT_INTERRUPTABLE - + /* Restore interrupts. */ TX_RESTORE #endif |