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Merge pull request #3769 from jesven/fix_yield

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解决yield操作不能及时释放cpu的问题
This commit is contained in:
Bernard Xiong 2020-10-01 15:46:10 +08:00 committed by GitHub
commit aeff91b2a7
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3 changed files with 12 additions and 5 deletions
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3
src/clock.c
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@ -91,8 +91,7 @@ void rt_tick_increase(void)
thread->stat |= RT_THREAD_STAT_YIELD;
/* yield */
rt_thread_yield();
rt_schedule();
}
/* check timer */

6
src/scheduler.c
View File

@ -346,9 +346,9 @@ void rt_schedule(void)
}
else
{
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
}
to_thread->oncpu = cpu_id;
if (to_thread != current_thread)
@ -444,9 +444,9 @@ void rt_schedule(void)
}
else
{
rt_current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
need_insert_from_thread = 1;
}
rt_current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
}
if (to_thread != rt_current_thread)
@ -595,9 +595,9 @@ void rt_scheduler_do_irq_switch(void *context)
}
else
{
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
}
to_thread->oncpu = cpu_id;
if (to_thread != current_thread)

8
src/thread.c
View File

@ -478,7 +478,15 @@ RTM_EXPORT(rt_thread_delete);
*/
rt_err_t rt_thread_yield(void)
{
struct rt_thread *thread;
rt_base_t lock;
thread = rt_thread_self();
lock = rt_hw_interrupt_disable();
thread->remaining_tick = thread->init_tick;
thread->stat |= RT_THREAD_STAT_YIELD;
rt_schedule();
rt_hw_interrupt_enable(lock);
return RT_EOK;
}