add rt_tick_set function

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1551 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 15 insertions, 0 deletions

diff --git a/src/clock.c b/src/clock.c
index 9203fc57ed..f23ddc3279 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -15,8 +15,10 @@
  * 2010-03-08     Bernard      remove rt_passed_second
  * 2010-05-20     Bernard      fix the tick exceeds the maximum limits
  * 2010-07-13     Bernard      fix rt_tick_from_millisecond issue found by kuronca
+ * 2011-06-26     Bernard      add rt_tick_set function.
  */
 
+#include <rthw.h>
 #include <rtthread.h>
 
 static rt_tick_t rt_tick;
@@ -52,6 +54,19 @@ rt_tick_t rt_tick_get()
 }
 
 /**
+ * This function will set current tick
+ */
+void rt_tick_set(rt_tick_t tick)
+{
+	rt_base_t level;
+	level = rt_hw_interrupt_disable();
+
+	rt_tick = tick;
+	
+	rt_hw_interrupt_enable(level);
+}
+
+/**
  * This function will notify kernel there is one tick passed. Normally,
  * this function is invoked by clock ISR.
  */