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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-01-08 13:37:23 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-01-08 13:37:23 +0000 |
| commit | 19aff238cb04c02491e65f391f2fcceb09da4dd5 (patch) | |
| tree | e82f9c91ff9f8d23390d3046d363d4d9fdc7853f /os/kernel/src/chlists.c | |
| parent | 1eebe078ffbb85c3fb8a14db4d241502b27145bf (diff) | |
| download | ChibiOS-19aff238cb04c02491e65f391f2fcceb09da4dd5.tar.gz ChibiOS-19aff238cb04c02491e65f391f2fcceb09da4dd5.tar.bz2 ChibiOS-19aff238cb04c02491e65f391f2fcceb09da4dd5.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1510 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/kernel/src/chlists.c')
| -rw-r--r-- | os/kernel/src/chlists.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/os/kernel/src/chlists.c b/os/kernel/src/chlists.c index da48b678e..4b87105bc 100644 --- a/os/kernel/src/chlists.c +++ b/os/kernel/src/chlists.c @@ -28,12 +28,12 @@ #if !CH_OPTIMIZE_SPEED || defined(__DOXYGEN__)
/**
* @brief Inserts a thread into a priority ordered queue.
- *
- * @param[in] tp the pointer to the thread to be inserted in the list
- * @param[in] tqp the pointer to the threads list header
* @note The insertion is done by scanning the list from the highest priority
* toward the lowest.
* @note This function is @b not an API.
+ *
+ * @param[in] tp the pointer to the thread to be inserted in the list
+ * @param[in] tqp the pointer to the threads list header
*/
void prio_insert(Thread *tp, ThreadsQueue *tqp) {
@@ -52,10 +52,10 @@ void prio_insert(Thread *tp, ThreadsQueue *tqp) { /**
* @brief Inserts a Thread into a queue.
+ * @note This function is @b not an API.
*
* @param[in] tp the pointer to the thread to be inserted in the list
* @param[in] tqp the pointer to the threads list header
- * @note This function is @b not an API.
*/
void queue_insert(Thread *tp, ThreadsQueue *tqp) {
@@ -65,10 +65,12 @@ void queue_insert(Thread *tp, ThreadsQueue *tqp) { /**
* @brief Removes the first-out Thread from a queue and returns it.
+ * @note If the queue is priority ordered then this function returns the
+ * thread with the highest priority.
+ * @note This function is @b not an API.
*
* @param[in] tqp the pointer to the threads list header
* @return The removed thread pointer.
- * @note This function is @b not an API.
*/
Thread *fifo_remove(ThreadsQueue *tqp) {
Thread *tp = tqp->p_next;
@@ -79,15 +81,17 @@ Thread *fifo_remove(ThreadsQueue *tqp) { /**
* @brief Removes the last-out Thread from a queue and returns it.
+ * @note If the queue is priority ordered then this function returns the
+ * thread with the lowest priority.
+ * @note This function is @b not an API.
*
* @param[in] tqp the pointer to the threads list header
* @return The removed thread pointer.
- * @note This function is @b not an API.
*/
Thread *lifo_remove(ThreadsQueue *tqp) {
- Thread *tp = tqp->p_next;
+ Thread *tp = tqp->p_prev;
- (tqp->p_next = tp->p_next)->p_prev = (Thread *)tqp;
+ (tqp->p_prev = tp->p_prev)->p_next = (Thread *)tqp;
return tp;
}
@@ -95,10 +99,10 @@ Thread *lifo_remove(ThreadsQueue *tqp) { * @brief Removes a Thread from a queue and returns it.
* @details The thread is removed from the queue regardless of its relative
* position and regardless the used insertion method.
+ * @note This function is @b not an API.
*
* @param[in] tp the pointer to the thread to be removed from the queue
* @return The removed thread pointer.
- * @note This function is @b not an API.
*/
Thread *dequeue(Thread *tp) {
|