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rt-thread
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[src] fix mutex bug

This commit is contained in:
wycwyhwyq 2025-02-27 17:46:32 +08:00 committed by Rbb666
parent 2db2bf0cc7
commit f13193ff92
3 changed files with 51 additions and 1 deletions
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1
include/rtsched.h
View File

@ -128,6 +128,7 @@ rt_err_t rt_sched_thread_yield(struct rt_thread *thread);
rt_err_t rt_sched_thread_close(struct rt_thread *thread);
rt_err_t rt_sched_thread_ready(struct rt_thread *thread);
rt_err_t rt_sched_thread_suspend(struct rt_thread *thread, rt_sched_lock_level_t level);
rt_err_t rt_sched_thread_set_priority(struct rt_thread *thread, rt_uint8_t priority);
rt_err_t rt_sched_thread_change_priority(struct rt_thread *thread, rt_uint8_t priority);
rt_err_t rt_sched_thread_bind_cpu(struct rt_thread *thread, int cpu);
rt_uint8_t rt_sched_thread_is_suspended(struct rt_thread *thread);

49
src/scheduler_comm.c
View File

@ -177,6 +177,55 @@ rt_err_t rt_sched_tick_increase(rt_tick_t tick)
return RT_EOK;
}
/**
* @brief Set priority of the target thread
*/
rt_err_t rt_sched_thread_set_priority(struct rt_thread *thread, rt_uint8_t priority)
{
RT_ASSERT(priority < RT_THREAD_PRIORITY_MAX);
RT_SCHED_DEBUG_IS_LOCKED;
/* for ready thread, change queue; otherwise simply update the priority */
if ((RT_SCHED_CTX(thread).stat & RT_THREAD_STAT_MASK) == RT_THREAD_READY)
{
/* remove thread from schedule queue first */
rt_sched_remove_thread(thread);
/* change thread priority */
RT_SCHED_PRIV(thread).init_priority = priority;
RT_SCHED_PRIV(thread).current_priority = priority;
/* recalculate priority attribute */
#if RT_THREAD_PRIORITY_MAX > 32
RT_SCHED_PRIV(thread).number = RT_SCHED_PRIV(thread).current_priority >> 3; /* 5bit */
RT_SCHED_PRIV(thread).number_mask = 1 << RT_SCHED_PRIV(thread).number;
RT_SCHED_PRIV(thread).high_mask = 1 << (RT_SCHED_PRIV(thread).current_priority & 0x07); /* 3bit */
#else
RT_SCHED_PRIV(thread).number_mask = 1 << RT_SCHED_PRIV(thread).current_priority;
#endif /* RT_THREAD_PRIORITY_MAX > 32 */
RT_SCHED_CTX(thread).stat = RT_THREAD_INIT;
/* insert thread to schedule queue again */
rt_sched_insert_thread(thread);
}
else
{
RT_SCHED_PRIV(thread).init_priority = priority;
RT_SCHED_PRIV(thread).current_priority = priority;
/* recalculate priority attribute */
#if RT_THREAD_PRIORITY_MAX > 32
RT_SCHED_PRIV(thread).number = RT_SCHED_PRIV(thread).current_priority >> 3; /* 5bit */
RT_SCHED_PRIV(thread).number_mask = 1 << RT_SCHED_PRIV(thread).number;
RT_SCHED_PRIV(thread).high_mask = 1 << (RT_SCHED_PRIV(thread).current_priority & 0x07); /* 3bit */
#else
RT_SCHED_PRIV(thread).number_mask = 1 << RT_SCHED_PRIV(thread).current_priority;
#endif /* RT_THREAD_PRIORITY_MAX > 32 */
}
return RT_EOK;
}
/**
* @brief Update priority of the target thread
*/

2
src/thread.c
View File

@ -797,7 +797,7 @@ rt_err_t rt_thread_control(rt_thread_t thread, int cmd, void *arg)
rt_err_t error;
rt_sched_lock_level_t slvl;
rt_sched_lock(&slvl);
error = rt_sched_thread_change_priority(thread, *(rt_uint8_t *)arg);
error = rt_sched_thread_set_priority(thread, *(rt_uint8_t *)arg);
rt_sched_unlock(slvl);
return error;
}