You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
185 lines
7.0 KiB
185 lines
7.0 KiB
/*
|
|
* Copyright (c) 2023-2024, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2024-01-19 Shell Seperate schduling statements from rt_thread_t
|
|
* to rt_sched_thread_ctx. Add definitions of scheduler.
|
|
*/
|
|
#ifndef __RT_SCHED_H__
|
|
#define __RT_SCHED_H__
|
|
|
|
#include "rttypes.h"
|
|
#include "rtcompiler.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
struct rt_thread;
|
|
|
|
typedef rt_uint8_t rt_sched_thread_status_t;
|
|
|
|
#ifdef RT_USING_SCHED_THREAD_CTX
|
|
|
|
/**
|
|
* Scheduler private status binding on thread. Caller should never accessing
|
|
* these members.
|
|
*/
|
|
struct rt_sched_thread_priv
|
|
{
|
|
rt_tick_t init_tick; /**< thread's initialized tick */
|
|
rt_tick_t remaining_tick; /**< remaining tick */
|
|
|
|
/* priority */
|
|
rt_uint8_t current_priority; /**< current priority */
|
|
rt_uint8_t init_priority; /**< initialized priority */
|
|
#if RT_THREAD_PRIORITY_MAX > 32
|
|
rt_uint8_t number; /**< priority low number */
|
|
rt_uint8_t high_mask; /**< priority high mask */
|
|
#endif /* RT_THREAD_PRIORITY_MAX > 32 */
|
|
rt_uint32_t number_mask; /**< priority number mask */
|
|
|
|
};
|
|
|
|
/**
|
|
* Scheduler public status binding on thread. Caller must hold the scheduler
|
|
* lock before access any one of its member.
|
|
*/
|
|
struct rt_sched_thread_ctx
|
|
{
|
|
rt_list_t thread_list_node; /**< node in thread list */
|
|
|
|
rt_uint8_t stat; /**< thread status */
|
|
rt_uint8_t sched_flag_locked:1; /**< calling thread have the scheduler locked */
|
|
rt_uint8_t sched_flag_ttmr_set:1; /**< thread timer is start */
|
|
|
|
#ifdef ARCH_USING_HW_THREAD_SELF
|
|
rt_uint8_t critical_switch_flag:1; /**< critical switch pending */
|
|
#endif /* ARCH_USING_HW_THREAD_SELF */
|
|
|
|
#ifdef RT_USING_SMP
|
|
rt_uint8_t bind_cpu; /**< thread is bind to cpu */
|
|
rt_uint8_t oncpu; /**< process on cpu */
|
|
|
|
rt_base_t critical_lock_nest; /**< critical lock count */
|
|
#endif
|
|
|
|
struct rt_sched_thread_priv sched_thread_priv; /**< private context of scheduler */
|
|
};
|
|
|
|
#define RT_SCHED_THREAD_CTX struct rt_sched_thread_ctx sched_thread_ctx;
|
|
|
|
#define RT_SCHED_PRIV(thread) ((thread)->sched_thread_ctx.sched_thread_priv)
|
|
#define RT_SCHED_CTX(thread) ((thread)->sched_thread_ctx)
|
|
|
|
/**
|
|
* Convert a list node in container RT_SCHED_CTX(thread)->thread_list_node
|
|
* to a thread pointer.
|
|
*/
|
|
#define RT_THREAD_LIST_NODE_ENTRY(node) \
|
|
rt_container_of( \
|
|
rt_list_entry((node), struct rt_sched_thread_ctx, thread_list_node), \
|
|
struct rt_thread, sched_thread_ctx)
|
|
#define RT_THREAD_LIST_NODE(thread) (RT_SCHED_CTX(thread).thread_list_node)
|
|
|
|
#else /* !defined(RT_USING_SCHED_THREAD_CTX) */
|
|
|
|
#if RT_THREAD_PRIORITY_MAX > 32
|
|
#define _RT_SCHED_THREAD_CTX_PRIO_EXT \
|
|
rt_uint8_t number; /**< priority low number */ \
|
|
rt_uint8_t high_mask; /**< priority high mask */
|
|
|
|
#else /* ! RT_THREAD_PRIORITY_MAX > 32 */
|
|
|
|
#define _RT_SCHED_THREAD_CTX_PRIO_EXT
|
|
#endif /* RT_THREAD_PRIORITY_MAX > 32 */
|
|
|
|
#define RT_SCHED_THREAD_CTX \
|
|
rt_list_t tlist; /**< node in thread list */ \
|
|
rt_uint8_t stat; /**< thread status */ \
|
|
rt_uint8_t sched_flag_locked:1; \
|
|
/**< calling thread have the scheduler locked */ \
|
|
rt_uint8_t sched_flag_ttmr_set:1; /**< thread timer is start */ \
|
|
rt_tick_t init_tick; /**< thread's initialized tick */ \
|
|
rt_tick_t remaining_tick; /**< remaining tick */ \
|
|
rt_uint8_t current_priority; /**< current priority */ \
|
|
rt_uint8_t init_priority; /**< initialized priority */ \
|
|
_RT_SCHED_THREAD_CTX_PRIO_EXT \
|
|
rt_uint32_t number_mask; /**< priority number mask */
|
|
|
|
#define RT_SCHED_PRIV(thread) (*thread)
|
|
#define RT_SCHED_CTX(thread) (*thread)
|
|
|
|
/**
|
|
* Convert a list node in container RT_SCHED_CTX(thread)->thread_list_node
|
|
* to a thread pointer.
|
|
*/
|
|
#define RT_THREAD_LIST_NODE_ENTRY(node) rt_list_entry((node), struct rt_thread, tlist)
|
|
#define RT_THREAD_LIST_NODE(thread) (RT_SCHED_CTX(thread).tlist)
|
|
|
|
#endif /* RT_USING_SCHED_THREAD_CTX */
|
|
|
|
/**
|
|
* System Scheduler Locking
|
|
*/
|
|
|
|
typedef rt_ubase_t rt_sched_lock_level_t;
|
|
|
|
rt_err_t rt_sched_lock(rt_sched_lock_level_t *plvl);
|
|
rt_err_t rt_sched_unlock(rt_sched_lock_level_t level);
|
|
rt_err_t rt_sched_unlock_n_resched(rt_sched_lock_level_t level);
|
|
|
|
rt_bool_t rt_sched_is_locked(void);
|
|
|
|
#ifdef RT_USING_SMP
|
|
#define RT_SCHED_DEBUG_IS_LOCKED do { RT_ASSERT(rt_sched_is_locked()); } while (0)
|
|
#define RT_SCHED_DEBUG_IS_UNLOCKED do { RT_ASSERT(!rt_sched_is_locked()); } while (0)
|
|
|
|
#else /* !RT_USING_SMP */
|
|
|
|
#define RT_SCHED_DEBUG_IS_LOCKED
|
|
#define RT_SCHED_DEBUG_IS_UNLOCKED
|
|
#endif /* RT_USING_SMP */
|
|
|
|
/**
|
|
* NOTE: user should NEVER use these APIs directly. See rt_thread_.* or IPC
|
|
* methods instead.
|
|
*/
|
|
#if defined(__RT_KERNEL_SOURCE__) || defined(__RT_IPC_SOURCE__)
|
|
|
|
/* thread initialization and startup routine */
|
|
void rt_sched_thread_init_ctx(struct rt_thread *thread, rt_uint32_t tick, rt_uint8_t priority);
|
|
void rt_sched_thread_init_priv(struct rt_thread *thread, rt_uint32_t tick, rt_uint8_t priority);
|
|
void rt_sched_thread_startup(struct rt_thread *thread);
|
|
|
|
/* scheduler related routine */
|
|
void rt_sched_post_ctx_switch(struct rt_thread *thread);
|
|
rt_err_t rt_sched_tick_increase(void);
|
|
|
|
/* thread status operation */
|
|
rt_uint8_t rt_sched_thread_get_stat(struct rt_thread *thread);
|
|
rt_uint8_t rt_sched_thread_get_curr_prio(struct rt_thread *thread);
|
|
rt_uint8_t rt_sched_thread_get_init_prio(struct rt_thread *thread);
|
|
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_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);
|
|
rt_err_t rt_sched_thread_timer_stop(struct rt_thread *thread);
|
|
rt_err_t rt_sched_thread_timer_start(struct rt_thread *thread);
|
|
void rt_sched_insert_thread(struct rt_thread *thread);
|
|
void rt_sched_remove_thread(struct rt_thread *thread);
|
|
struct rt_thread *rt_sched_thread_self(void);
|
|
|
|
#endif /* defined(__RT_KERNEL_SOURCE__) || defined(__RT_IPC_SOURCE__) */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __RT_SCHED_H__ */
|
|
|