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add rt_thread_idle_excute API. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@830 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2010-08-05 08:16:30 +00:00
parent 898ad75a7a
commit 2e0352e653
2 changed files with 74 additions and 46 deletions
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1
include/rtthread.h
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@ -120,6 +120,7 @@ void rt_thread_idle_init(void);
#ifdef RT_USING_HOOK
void rt_thread_idle_sethook(void (*hook)(void));
#endif
void rt_thread_idle_excute(void);
/*
* schedule service

119
src/idle.c
View File

@ -52,6 +52,78 @@ void rt_thread_idle_sethook(void (*hook)())
/*@}*/
#endif
/**
* This function will do some things when system idle.
*/
void rt_thread_idle_excute(void)
{
#ifdef RT_USING_HEAP
/* check the defunct thread list */
if (!rt_list_isempty(&rt_thread_defunct))
{
rt_base_t lock;
rt_thread_t thread;
#ifdef RT_USING_MODULE
rt_module_t module;
#endif
/* disable interrupt */
lock = rt_hw_interrupt_disable();
/* re-check whether list is empty */
if (!rt_list_isempty(&rt_thread_defunct))
{
/* get defunct thread */
thread = rt_list_entry(rt_thread_defunct.next, struct rt_thread, tlist);
/* get thread's parent module */
#ifdef RT_USING_MODULE
module = thread->module_parent;
#endif
/* remove defunct thread */
rt_list_remove(&(thread->tlist));
}
else
{
/* enable interrupt */
rt_hw_interrupt_enable(lock);
/* may the defunct thread list is removed by others, just return */
return;
}
/* enable interrupt */
rt_hw_interrupt_enable(lock);
#ifdef RT_USING_MODULE
if(module != RT_NULL)
{
/* if the thread is module's main thread */
if(module->module_thread == thread)
{
/* detach module's main thread */
module->module_thread = RT_NULL;
}
/* if sub thread list and main thread are null */
if((module->module_thread == RT_NULL) &&
rt_list_isempty(&module->module_object[RT_Object_Class_Thread].object_list) &&
(module->module_info->module_type == RT_Module_Class_APP))
{
/* unload module */
rt_module_unload(module);
}
}
#endif
/* release thread's stack */
rt_free(thread->stack_addr);
/* delete thread object */
rt_object_delete((rt_object_t)thread);
}
#endif
}
static void rt_thread_idle_entry(void* parameter)
{
while (1)
@ -61,52 +133,7 @@ static void rt_thread_idle_entry(void* parameter)
if (rt_thread_idle_hook != RT_NULL) rt_thread_idle_hook();
#endif
#ifdef RT_USING_HEAP
/* check the defunct thread list */
if (!rt_list_isempty(&rt_thread_defunct))
{
rt_base_t lock;
struct rt_thread* thread = rt_list_entry(rt_thread_defunct.next, struct rt_thread, tlist);
#ifdef RT_USING_MODULE
rt_module_t module = thread->module_parent;
#endif
/* disable interrupt */
lock = rt_hw_interrupt_disable();
rt_list_remove(&(thread->tlist));
/* enable interrupt */
rt_hw_interrupt_enable(lock);
/* release thread's stack */
rt_free(thread->stack_addr);
/* delete thread object */
rt_object_delete((rt_object_t)thread);
#ifdef RT_USING_MODULE
if(module != RT_NULL)
{
/* if the thread is module's main thread */
if(module->module_thread == thread)
{
/* detach module's main thread */
module->module_thread = RT_NULL;
}
/* if sub thread list and main thread are null */
if((module->module_thread == RT_NULL) &&
rt_list_isempty(&module->module_object[RT_Object_Class_Thread].object_list) &&
(module->module_info->module_type == RT_Module_Class_APP))
{
/* unload module */
rt_module_unload(module);
}
}
#endif
}
#endif
rt_thread_idle_excute();
}
}