git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@430 35acf78f-673a-0410-8e92-d51de3d6d3f4

demos/ARM7-AT91SAM7X-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/ARM7-AT91SAM7X-WEB-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/ARM7-LPC214x-G++/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/ARM7-LPC214x-GCC-minimal/chconf.h

@@ -102,7 +102,6 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
 //#define CH_USE_EXIT_EVENT

demos/ARM7-LPC214x-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/ARMCM3-STM32F103-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/AVR-AT90CANx-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/AVR-ATmega128-GCC/chconf.h

@@ -102,10 +102,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

demos/MSP430-MSP430x1611-GCC/chconf.h

@@ -103,10 +103,9 @@
 
 /** Configuration option: if specified then the
  *  \p chThdGetExitEventSource() function is included in the kernel.
- * @deprecated
  * @note requires \p CH_USE_MESSAGES.
  * @note requires \p CH_USE_EVENTS.*/
-//#define CH_USE_EXIT_EVENT
+#define CH_USE_EXIT_EVENT
 
 /** Configuration option: if specified then the I/O queues APIs are included
  *  in the kernel.*/

docs/ch.txt

@@ -38,10 +38,11 @@
  * <li>No static setup at compile time, there is no need to configure a maximum
  *     number of all the above resources.</li>
  * <li>No *need* for a memory allocator, all the kernel structures are static
- *     and declaratively allocated. A memory allocator can be used in your
+ *     and declaratively allocated.</li>
- *     application but it is not required by the ChibiOS/RT itself.</li>
  * <li>Threads, Semaphores, Event Sources, Virtual Timers creation/deletion at
  *     runtime.</li>
+ * <li>Optional, thread safe, Heap Allocator subsystem.</li>
+ * <li>Optional, thread safe, Memory Pools Allocator subsystem.</li>
  * <li>Blocking and non blocking I/O channels with timeout and events generation
  *     capability.</li>
  * <li>Minimal system requirements: about 8KiB ROM with all options enabled and

readme.txt

@@ -93,13 +93,13 @@ Win32-MinGW            - ChibiOS/RT simulator and demo into a WIN32 process,
   code to the Thread structure.
 - FIX: Corrected the wrong definition of the chThdResumeI() macro.
 - FIX: The API chSemWaitTimeout() was missing in the documentation.
+- CHANGE: Modified the chMtxUnlock() and chMtxUnlockS() APIs to return the
+  pointer to the released mutex instead of void.
 - CHANGE: Now the chThdResume() asserts that the thread is in PRSUSPEND state
   rather than test it.
 - CHANGE: Removed the CH_USE_TERMINATE, CH_USE_SLEEP, CH_USE_SUSPEND and
   CH_USE_RESUME configuration options in order to make the chconf.h file
   simpler. The related functions are very small and almost always required.
-- CHANGE: The CH_USE_EXIT_EVENT configuration option and related functions are
-  now deprecated.
 - CHANGE: The P_MSGBYPRIO thread option has been removed, now the threads
   always serve messages in priority order if the CH_USE_MESSAGES_PRIORITY
   configuration option is active.

src/chmtx.c

@@ -149,8 +149,8 @@ bool_t chMtxTryLockS(Mutex *mp) {
 /**
  * Unlocks the next owned mutex in reverse lock order.
  */
-void chMtxUnlock(void) {
+Mutex *chMtxUnlock(void) {
-  Mutex *mp;
+  Mutex *ump, *mp;
 
   chSysLock();
 
@@ -158,16 +158,16 @@ void chMtxUnlock(void) {
               "chmtx.c, chMtxUnlock()");
 
   /* remove the top Mutex from the Threads's owned mutexes list */
-  mp = currp->p_mtxlist;
+  ump = currp->p_mtxlist;
-  currp->p_mtxlist = mp->m_next;
+  currp->p_mtxlist = ump->m_next;
   /* mark the Mutex as not owned */
-  mp->m_owner = NULL;
+  ump->m_owner = NULL;
   /*
    * If a thread is waiting on the mutex then the hard part begins.
    */
-  if (chMtxQueueNotEmptyS(mp)) {
+  if (chMtxQueueNotEmptyS(ump)) {
     /* get the highest priority thread waiting for the unlocked mutex */
-    Thread *tp = fifo_remove(&mp->m_queue);
+    Thread *tp = fifo_remove(&ump->m_queue);
     /*
      * Recalculates the optimal thread priority by scanning the owned mutexes list.
      */
@@ -187,6 +187,7 @@ void chMtxUnlock(void) {
     chSchWakeupS(tp, RDY_OK);
   }
   chSysUnlock();
+  return ump;
 }
 
 /**
@@ -195,8 +196,8 @@ void chMtxUnlock(void) {
  *       block.
  * @note This function does not reschedule internally.
  */
-void chMtxUnlockS(void) {
+Mutex *chMtxUnlockS(void) {
-  Mutex *mp;
+  Mutex *ump, *mp;
 
   chDbgAssert((currp->p_mtxlist != NULL) && (currp->p_mtxlist->m_owner == currp),
               "chmtx.c, chMtxUnlockS()");
@@ -204,14 +205,14 @@ void chMtxUnlockS(void) {
   /*
    * Removes the top Mutex from the owned mutexes list and marks it as not owned.
    */
-  mp = currp->p_mtxlist;
+  ump = currp->p_mtxlist;
-  currp->p_mtxlist = mp->m_next;
+  currp->p_mtxlist = ump->m_next;
-  mp->m_owner = NULL;
+  ump->m_owner = NULL;
   /*
    * If a thread is waiting on the mutex then the hard part begins.
    */
-  if (chMtxQueueNotEmptyS(mp)) {
+  if (chMtxQueueNotEmptyS(ump)) {
-    Thread *tp = fifo_remove(&mp->m_queue);
+    Thread *tp = fifo_remove(&ump->m_queue);
     /*
      * Recalculates the optimal thread priority by scanning the owned mutexes list.
      */
@@ -225,6 +226,7 @@ void chMtxUnlockS(void) {
     currp->p_prio = newprio;
     chSchReadyI(tp);
   }
+  return ump;
 }
 
 /**

src/include/mutexes.h

@@ -46,8 +46,8 @@ extern "C" {
   void chMtxLockS(Mutex *mp);
   bool_t chMtxTryLock(Mutex *mp);
   bool_t chMtxTryLockS(Mutex *mp);
-  void chMtxUnlock(void);
+  Mutex *chMtxUnlock(void);
-  void chMtxUnlockS(void);
+  Mutex *chMtxUnlockS(void);
   void chMtxUnlockAll(void);
 #ifdef __cplusplus
 }