Add configCONTROL_INFINITE_LOOP for loop control in unit test (#783)

* Add configCONTROL_INFINITE_LOOP in FreeRTOS.h
* Use configCONTROL_INFINITE_LOOP in tasks.c and timer.c

---------

Co-authored-by: Soren Ptak <[email protected]>
Co-authored-by: kar-rahul-aws <[email protected]>

Author: 3 people

include/FreeRTOS.h

@@ -2872,6 +2872,12 @@
     #define configRUN_ADDITIONAL_TESTS    0
 #endif
 
+/* The following config allows infinite loop control. For example, control the
+ * infinite loop in idle task function when performing unit tests. */
+#ifndef configCONTROL_INFINITE_LOOP
+    #define configCONTROL_INFINITE_LOOP()
+#endif
+
 /* Sometimes the FreeRTOSConfig.h settings only allow a task to be created using
  * dynamically allocated RAM, in which case when any task is deleted it is known
  * that both the task's stack and TCB need to be freed.  Sometimes the

tasks.c

@@ -317,12 +317,6 @@
     #define portDECREMENT_CRITICAL_NESTING_COUNT()    ( pxCurrentTCBs[ portGET_CORE_ID() ]->uxCriticalNesting-- )
 #endif /* #if ( ( configNUMBER_OF_CORES > 1 ) && ( portCRITICAL_NESTING_IN_TCB == 1 ) ) */
 
-/* Code below here allows infinite loop controlling, especially for the infinite loop
- * in idle task function (for example when performing unit tests). */
-#ifndef INFINITE_LOOP
-    #define INFINITE_LOOP()    1
-#endif
-
 #define taskBITS_PER_BYTE    ( ( size_t ) 8 )
 
 #if ( configNUMBER_OF_CORES > 1 )
@@ -5374,7 +5368,7 @@ void vTaskMissedYield( void )
 
         taskYIELD();
 
-        for( ; INFINITE_LOOP(); )
+        for( ; configCONTROL_INFINITE_LOOP(); )
         {
             #if ( configUSE_PREEMPTION == 0 )
             {
@@ -5459,7 +5453,7 @@ static portTASK_FUNCTION( prvIdleTask, pvParameters )
     }
     #endif /* #if ( configNUMBER_OF_CORES > 1 ) */
 
-    for( ; INFINITE_LOOP(); )
+    for( ; configCONTROL_INFINITE_LOOP(); )
     {
         /* See if any tasks have deleted themselves - if so then the idle task
          * is responsible for freeing the deleted task's TCB and stack. */

timers.c

@@ -709,7 +709,7 @@
         }
         #endif /* configUSE_DAEMON_TASK_STARTUP_HOOK */
 
-        for( ; ; )
+        for( ; configCONTROL_INFINITE_LOOP(); )
         {
             /* Query the timers list to see if it contains any timers, and if so,
              * obtain the time at which the next timer will expire. */