68 lines
3.4 KiB
C
68 lines
3.4 KiB
C
/*----------------------------------------------------------------------------
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* Copyright (c) CompanyNameMagicTag 2021. All rights reserved.
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* All rights reserved.
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*---------------------------------------------------------------------------*/
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#ifndef DPAL_WAIT_H
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#define DPAL_WAIT_H
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#include "dpal_list.h"
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typedef struct {
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uint32_t event_id; /* Event mask in the event control block,
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indicating the event that has been logically processed. */
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dpal_dl_list_t event_list; /* Event control block linked list */
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} even_cb;
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typedef struct {
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size_t rawLock; /**< raw spinlock */
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#ifdef LOSCFG_KERNEL_SMP_LOCKDEP
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uint32_t cpuid; /**< the cpu id when the lock is obtained. It is defined
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only when LOSCFG_KERNEL_SMP_LOCKDEP is defined. */
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VOID *owner; /**< the pointer to the lock owner's task control block.
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It is defined only when LOSCFG_KERNEL_SMP_LOCKDEP is
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defined. */
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const char *name; /**< the lock owner's task name. It is defined only when
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LOSCFG_KERNEL_SMP_LOCKDEP is defined. */
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#endif
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} spinlock;
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/*
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* Notice about wait_queue_head_t:
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* 1.The stEvent is used for task-synchronization and has the same function as wait_event_head in Linux.
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* In LiteOS, when wait_event is called, if the condition is not true, the task will be blocked and
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* mounted on stEvent.stEventList. In Linux, the blocked task will be mounted on wait_queue_head.task_list.
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* 2.The lock and poll_queue are only used for poll operation: poll_queue is used to link poll_wait_node,
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* and lock is used to protect this poll_queue.
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*/
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typedef struct dpal_wait {
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even_cb event;
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spinlock lock;
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dpal_dl_list_t poll_queue;
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} dpal_wait_queue_head;
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#endif
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