git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@121 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 11 insertions, 9 deletions

diff --git a/src/chsem.c b/src/chsem.c
index 61fff37a1..01ec80649 100644
--- a/src/chsem.c
+++ b/src/chsem.c
@@ -82,33 +82,35 @@ void chSemResetI(Semaphore *sp, t_cnt n) {
 /**

  * Performs a wait operation on a semaphore.

  * @param sp pointer to a \p Semaphore structure

+ * @return the function can return \p RDY_OK or \p RDY_RESET.

  */

-void chSemWait(Semaphore *sp) {

+t_msg chSemWait(Semaphore *sp) {

+  t_msg msg;

 

   chSysLock();

 

-  if (--sp->s_cnt < 0) {

-    fifo_insert(currp, &sp->s_queue);

-    currp->p_semp = sp;

-    chSchGoSleepS(PRWTSEM);

-  }

+  msg = chSemWaitS(sp);

 

   chSysUnlock();

+  return msg;

 }

 

 /**

  * Performs a wait operation on a semaphore.

  * @param sp pointer to a \p Semaphore structure

+ * @return the function can return \p RDY_OK or \p RDY_RESET.

  * @note This function must be called with interrupts disabled.

  * @note This function cannot be called by an interrupt handler.

  */

-void chSemWaitS(Semaphore *sp) {

+t_msg chSemWaitS(Semaphore *sp) {

 

   if (--sp->s_cnt < 0) {

     fifo_insert(currp, &sp->s_queue);

     currp->p_semp = sp;

     chSchGoSleepS(PRWTSEM);

+    return currp->p_rdymsg;

   }

+  return RDY_OK;

 }

 

 #ifdef CH_USE_SEMAPHORES_TIMEOUT

@@ -126,7 +128,7 @@ static void wakeup(void *p) {
  * Performs a wait operation on a semaphore with timeout specification.

  * @param sp pointer to a \p Semaphore structure

  * @param time the number of ticks before the operation fails

- * @return the function can return \p RDY_OK. \p RDY_TIMEOUT or \p RDY_RESET.

+ * @return the function can return \p RDY_OK, \p RDY_TIMEOUT or \p RDY_RESET.

  */

 t_msg chSemWaitTimeout(Semaphore *sp, t_time time) {

   t_msg msg;

@@ -143,7 +145,7 @@ t_msg chSemWaitTimeout(Semaphore *sp, t_time time) {
  * Performs a wait operation on a semaphore with timeout specification.

  * @param sp pointer to a \p Semaphore structure

  * @param time the number of ticks before the operation fails

- * @return the function can return \p RDY_OK. \p RDY_TIMEOUT or \p RDY_RESET.

+ * @return the function can return \p RDY_OK, \p RDY_TIMEOUT or \p RDY_RESET.

  * @note This function must be called with interrupts disabled.

  * @note This function cannot be called by an interrupt handler.

  * @note The function is available only if the \p CH_USE_SEMAPHORES_TIMEOUT