1.add an API of finding the first user task in xiuos task manage list; 2.add restart application after ota

Ubiquitous/XiUOS/kernel/include/xs_ktask.h

@@ -159,6 +159,7 @@ int32 KTaskCreate(const char *name,
 void KTaskQuit(void);
 
 #ifdef  SEPARATE_COMPILE
+int UTaskSearch(void);
 int32 UTaskCreate(const char *name,
 							void (*entry)(void *parameter),
 							void       *parameter,

Ubiquitous/XiUOS/kernel/include/xs_service.h

@@ -33,6 +33,7 @@ enum KernelServiceEnum
     KS_USER_TASK_CREATE , 
     KS_USER_TASK_STARTUP , 
     KS_USER_TASK_DELETE,
+    KS_USER_TASK_SEARCH,
     KS_USER_TASK_EXECEXIT,
     KS_USER_TASK_CORE_COMBINE,
     KS_USER_TASK_CORE_UNCOMBINE,

Ubiquitous/XiUOS/kernel/kernel_service/xs_service.c

@@ -120,6 +120,11 @@ uintptr_t KsTaskDelete(uint32_t knum,uintptr_t *param, uint8_t num)
     return  (uintptr_t)ret;
 }
 
+uintptr_t KsUserTaskSerach(uint32_t knum,uintptr_t *param, uint8_t num )
+{
+   return  (uintptr_t)UTaskSearch();
+}
+
 extern void KTaskQuit(void);
 uintptr_t KsTaskQuit(uint32_t knum,uintptr_t *param, uint8_t num )
 {
@@ -567,6 +572,7 @@ struct KernelService g_service_table[256]  __attribute__ ((section (".g_service_
     [KS_USER_TASK_CREATE]          = { KsTaskCreate, 5 },
     [KS_USER_TASK_STARTUP]         = { KsStartupTask, 1 },
     [KS_USER_TASK_DELETE]          = { KsTaskDelete, 1 },
+    [KS_USER_TASK_SEARCH]          = { KsUserTaskSerach, 0 },
 	 [KS_USER_TASK_EXECEXIT]      = { KsTaskQuit, 0 },
     [KS_USER_TASK_CORE_COMBINE]     = { KsTaskCoreCombine, 2 },
     [KS_USER_TASK_CORE_UNCOMBINE]   = { KsTaskCoreUnCombine, 1 },

Ubiquitous/XiUOS/kernel/thread/ktask.c

@@ -1052,6 +1052,36 @@ x_err_t KTaskWakeup(int32 id)
 
 
 #ifdef SEPARATE_COMPILE
+/**
+ * find the first user task in manage list.
+ *
+ * @param 
+ *
+ * @note in interrupt status,this function is not permitted to call.
+ */
+int UTaskSearch(void)
+{
+    x_base lock = 0;
+    KTaskDescriptorType temp_task = NONE;
+    struct SysDoubleLinklistNode *node = NONE;
+	
+	lock = CriticalAreaLock();
+
+    DOUBLE_LINKLIST_FOR_EACH(node,&xiaoshan_task_head)
+	{
+		temp_task = SYS_DOUBLE_LINKLIST_ENTRY(node, struct TaskDescriptor, link);
+		if (1 == temp_task->task_dync_sched_member.isolation_flag)
+		{
+			CriticalAreaUnLock(lock);
+			return temp_task->id.id;
+		}
+	}
+
+	CriticalAreaUnLock(lock);
+
+	return -1;
+}
+
 /**
  *
  * This function init a user task in dynamic way .