libs/rt-thread-official
libs/rt-thread-official
4
0
Fork 0
mirror of https://github.com/RT-Thread/rt-thread.git synced 2025-02-28 05:37:04 +08:00
Code Issues Releases Wiki Activity

fix the next timeout issue in soft timer

Browse Source 
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2484 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong@gmail.com 2012-12-15 02:17:17 +00:00
parent b2da13707b
commit ea4082b791
1 changed files with 283 additions and 262 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/timer.c
View File

@ -17,6 +17,7 @@
* 2009-11-11 LiJin add soft timer
* 2010-05-12 Bernard fix the timer check bug.
* 2010-11-02 Charlie re-implement tick overflow issue
* 2012-12-15 Bernard fix the next timeout issue in soft timer
*/
#include <rtthread.h>
@ -26,6 +27,14 @@
static rt_list_t rt_timer_list = RT_LIST_OBJECT_INIT(rt_timer_list);
#ifdef RT_USING_TIMER_SOFT
#ifndef RT_TIMER_THREAD_STACK_SIZE
#define RT_TIMER_THREAD_STACK_SIZE 512
#endif
#ifndef RT_TIMER_THREAD_PRIO
#define RT_TIMER_THREAD_PRIO 0
#endif
/* soft timer list */
static rt_list_t rt_soft_timer_list;
static struct rt_thread timer_thread;
@ -506,16 +515,28 @@ static void rt_thread_timer_entry(void *parameter)
while (1)
{
/* get the next timeout tick */
next_timeout = rt_timer_list_next_timeout(&rt_soft_timer_list);
if (next_timeout == RT_TICK_MAX)
{
/* no software timer exist, suspend self. */
rt_thread_suspend(rt_thread_self());
rt_schedule();
}
else
{
rt_tick_t current_tick;
/* get current tick */
current_tick = rt_tick_get();
if ((next_timeout - current_tick) < RT_TICK_MAX/2)
{
/* get the delta timeout tick */
next_timeout = next_timeout - current_tick;
rt_thread_delay(next_timeout);
}
}
/* lock scheduler */
rt_enter_critical();