cleanup code in ipc.c and idle.c

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1713 bbd45198-f89e-11dd-88c7-29a3b14d5316

src/idle.c

@@ -1,7 +1,7 @@
 /*
  * File      : idle.c
  * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
@@ -83,7 +83,7 @@ void rt_thread_idle_excute(void)
 			module = (rt_module_t)thread->module_id;
 
 			/* if the thread is module's main thread */
-			if(module != RT_NULL && module->module_thread == thread)
+			if (module != RT_NULL && module->module_thread == thread)
 			{	
 				/* detach module's main thread */
 				module->module_thread = RT_NULL;
@@ -117,7 +117,7 @@ void rt_thread_idle_excute(void)
 #ifdef RT_USING_HEAP
 #if defined(RT_USING_MODULE) && defined(RT_USING_SLAB)
 		/* the thread belongs to an application module */
-		if(thread->flags & RT_OBJECT_FLAG_MODULE)
+		if (thread->flags & RT_OBJECT_FLAG_MODULE)
 			rt_module_free((rt_module_t)thread->module_id, thread->stack_addr);
 		else
 #endif
@@ -128,10 +128,10 @@ void rt_thread_idle_excute(void)
 #endif
 
 #ifdef RT_USING_MODULE
-		if(module != RT_NULL)
+		if (module != RT_NULL)
 		{	
 			/* if sub thread list and main thread are all empty */
-			if((module->module_thread == RT_NULL) &&
+			if ((module->module_thread == RT_NULL) &&
 				rt_list_isempty(&module->module_object[RT_Object_Class_Thread].object_list) )
 			{
 				module->nref--;
@@ -139,7 +139,7 @@ void rt_thread_idle_excute(void)
 		}
 
 		/* unload module */
-		if(module->nref == 0)	rt_module_unload(module);
+		if (module->nref == 0)	rt_module_unload(module);
 #endif
 	}
 }
@@ -164,7 +164,7 @@ static void rt_thread_idle_entry(void* parameter)
  *
  * @note this function must be invoked when system init.
  */
-void rt_thread_idle_init()
+void rt_thread_idle_init(void)
 {
 	/* init thread */
 	rt_thread_init(&idle,