--- /dev/null
+/******************************************************************************
+###############################################################################
+# Copyright (c) [2017-2020] [ICT/CAS] #
+# Licensed under the ORAN Software License v1.0 (License) #
+###############################################################################
+******************************************************************************/
+
+
+
+
+#ifndef __VOS_SYS_DIFF_H__
+#define __VOS_SYS_DIFF_H__
+
+#include "vos_types.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+#if OS_LINUX
+#define __TASK_PRIORITY_TIME_CRITICAL 90 /* tTimer */
+#define __TASK_PRIORITY_HIGHEST 80 /* tDevice */
+#define __TASK_PRIORITY_HIGHER 70 /* consloe telnet */
+#define __TASK_PRIORITY_HIGH 60 /* cdp等 *//*hot */
+#define __TASK_PRIORITY_ABOVE_NORMAL 50 /* stp *//* IP Receive *//*backup*/
+#define __TASK_PRIORITY_NORMAL 40 /* protocols *//* FDB FIB *//* radius */
+#define __TASK_PRIORITY_BELOW_NORMAL 30 /* syslog */
+#define __TASK_PRIORITY_LOWEST 10
+#define __TASK_PRIORITY_IDLE 1
+#define __VOS_DEFAULT_STACKSIZE 1024*1024*8 /* 任务的缺省栈大小. */
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* __VOS_SYS_DIFF_H__ */