89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _TOS_PEND_H_
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#define _TOS_PEND_H_
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typedef struct k_task_st k_task_t;
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/**
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* The reason why we wakeup from a pend.
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* when we wakeup, we need to know why.
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*/
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typedef enum pend_state_en {
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PEND_STATE_NONE, /**< nothing. */
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PEND_STATE_POST, /**< someone has post, we get what we want. */
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PEND_STATE_TIMEOUT, /**< a post has never came until time is out. */
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PEND_STATE_DESTROY, /**< someone has destroyed what we are pending for. */
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PEND_STATE_OWNER_DIE, /**< the pend object owner task is destroyed. */
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} pend_state_t;
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// what we are pending
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/* actually, it's some kind of magic number, mainly for identifing whether the pend
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is initialized, or whether user pass the correct parameter.
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*/
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typedef enum pend_type_en {
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PEND_TYPE_NONE = 0x0000,
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PEND_TYPE_SEM = 0x1BEE,
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PEND_TYPE_MUTEX = 0x2BEE,
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PEND_TYPE_EVENT = 0x3BEE,
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PEND_TYPE_QUEUE = 0x4BEE,
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PEND_TYPE_COUNTDOWNLATCH = 0x5BEE,
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PEND_TYPE_COMPLETION = 0x6BEE,
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} pend_type_t;
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typedef enum opt_post_en {
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OPT_POST_ONE,
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OPT_POST_ALL,
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} opt_post_t;
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typedef struct pend_object_st {
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pend_type_t type;
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k_list_t list;
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} pend_obj_t;
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__KERNEL__ void pend_object_init(pend_obj_t *object, pend_type_t type);
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__KERNEL__ void pend_object_deinit(pend_obj_t *object);
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__KERNEL__ int pend_object_verify(pend_obj_t *object, pend_type_t type);
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__KERNEL__ int pend_is_nopending(pend_obj_t *object);
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__KERNEL__ k_prio_t pend_highest_pending_prio_get(pend_obj_t *object);
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__KERNEL__ k_task_t *pend_highest_pending_task_get(pend_obj_t *object);
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__KERNEL__ void pend_list_remove(k_task_t *task);
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__KERNEL__ void pend_list_adjust(k_task_t *task);
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__KERNEL__ k_err_t pend_state2errno(pend_state_t state);
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__KERNEL__ void pend_task_wakeup(k_task_t *task, pend_state_t state);
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__KERNEL__ void pend_task_block(k_task_t *task, pend_obj_t *object, k_tick_t timeout);
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__KERNEL__ void pend_wakeup_one(pend_obj_t *object, pend_state_t state);
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__KERNEL__ void pend_wakeup_all(pend_obj_t *object, pend_state_t state);
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__KERNEL__ void pend_wakeup(pend_obj_t *object, pend_state_t state, opt_post_t opt);
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#endif /* _TOS_PEND_H_ */
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