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将yield状态置于tcb的stat位域中

This commit is contained in:
shaojinchun 2019-11-05 08:41:38 +08:00
parent 9a38bba168
commit e03ac83ad3
4 changed files with 11 additions and 10 deletions
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6
include/rtdef.h
View File

@ -491,7 +491,10 @@ typedef siginfo_t rt_siginfo_t;
#define RT_THREAD_RUNNING 0x03 /**< Running status */
#define RT_THREAD_BLOCK RT_THREAD_SUSPEND /**< Blocked status */
#define RT_THREAD_CLOSE 0x04 /**< Closed status */
#define RT_THREAD_STAT_MASK 0x0f
#define RT_THREAD_STAT_MASK 0x07
#define RT_THREAD_STAT_YIELD 0x08 /**< indicate whether remaining_tick has been reloaded since last schedule */
#define RT_THREAD_STAT_YIELD_MASK RT_THREAD_STAT_YIELD
#define RT_THREAD_STAT_SIGNAL 0x10 /**< task hold signals */
#define RT_THREAD_STAT_SIGNAL_READY (RT_THREAD_STAT_SIGNAL | RT_THREAD_READY)
@ -608,7 +611,6 @@ struct rt_thread
rt_ubase_t init_tick; /**< thread's initialized tick */
rt_ubase_t remaining_tick; /**< remaining tick */
rt_ubase_t can_yield; /**< indicate whether remaining_tick has been reloaded since last schedule */
struct rt_timer thread_timer; /**< built-in thread timer */

2
src/clock.c
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@ -89,7 +89,7 @@ void rt_tick_increase(void)
/* change to initialized tick */
thread->remaining_tick = thread->init_tick;
thread->can_yield = RT_TRUE;
thread->stat |= RT_THREAD_STAT_YIELD;
/* yield */
rt_thread_yield();

12
src/scheduler.c
View File

@ -344,13 +344,13 @@ void rt_schedule(void)
{
to_thread = current_thread;
}
else if (current_thread->current_priority == highest_ready_priority && current_thread->can_yield == RT_FALSE)
else if (current_thread->current_priority == highest_ready_priority && (current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = current_thread;
}
else
{
current_thread->can_yield = RT_FALSE;
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
}
@ -440,13 +440,13 @@ void rt_schedule(void)
{
to_thread = rt_current_thread;
}
else if (rt_current_thread->current_priority == highest_ready_priority && rt_current_thread->can_yield == RT_FALSE)
else if (rt_current_thread->current_priority == highest_ready_priority && (rt_current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = rt_current_thread;
}
else
{
rt_current_thread->can_yield = RT_FALSE;
rt_current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
need_insert_from_thread = 1;
}
}
@ -588,13 +588,13 @@ void rt_scheduler_do_irq_switch(void *context)
{
to_thread = current_thread;
}
else if (current_thread->current_priority == highest_ready_priority && current_thread->can_yield == RT_FALSE)
else if (current_thread->current_priority == highest_ready_priority && (current_thread->stat & RT_THREAD_STAT_YIELD_MASK) == 0)
{
to_thread = current_thread;
}
else
{
current_thread->can_yield = RT_FALSE;
current_thread->stat &= ~RT_THREAD_STAT_YIELD_MASK;
rt_schedule_insert_thread(current_thread);
}
}

1
src/thread.c
View File

@ -159,7 +159,6 @@ static rt_err_t _rt_thread_init(struct rt_thread *thread,
/* tick init */
thread->init_tick = tick;
thread->remaining_tick = tick;
thread->can_yield = RT_FALSE;
/* error and flags */
thread->error = RT_EOK;