558 lines
17 KiB
C
558 lines
17 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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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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*
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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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*
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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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*
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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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*
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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 _LOS_TASK_PRI_H
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#define _LOS_TASK_PRI_H
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#include "los_task.h"
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#include "los_percpu_pri.h"
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#include "los_spinlock.h"
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#ifdef LOSCFG_SCHED_DEBUG
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#include "los_stat_pri.h"
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#endif
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#include "los_stackinfo_pri.h"
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#include "los_futex_pri.h"
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#include "los_signal.h"
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#ifdef LOSCFG_KERNEL_CPUP
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#include "los_cpup_pri.h"
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#endif
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#include "los_trace.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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/**
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* @ingroup los_task
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* Define task siginal types.
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*
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* Task siginal types.
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*/
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#define SIGNAL_NONE 0U
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#define SIGNAL_KILL (1U << 0)
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#define SIGNAL_SUSPEND (1U << 1)
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#define SIGNAL_AFFI (1U << 2)
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/* scheduler lock */
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extern SPIN_LOCK_S g_taskSpin;
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#define SCHEDULER_LOCK(state) LOS_SpinLockSave(&g_taskSpin, &(state))
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#define SCHEDULER_UNLOCK(state) LOS_SpinUnlockRestore(&g_taskSpin, state)
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/* default and non-running task's ownership id */
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#define OS_TASK_INVALID_CPUID 0xFFFF
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/**
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* @ingroup los_task
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* Null task ID
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*
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*/
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#define OS_TASK_ERRORID 0xFFFFFFFF
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/**
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* @ingroup los_task
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* Define a usable task priority.
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*
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* Highest task priority.
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*/
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#define OS_TASK_PRIORITY_HIGHEST 0
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/**
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* @ingroup los_task
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* Define a usable task priority.
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*
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* Lowest task priority.
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*/
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#define OS_TASK_PRIORITY_LOWEST 31
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is init.
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*/
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#define OS_TASK_STATUS_INIT 0x0001U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is ready.
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*/
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#define OS_TASK_STATUS_READY 0x0002U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is running.
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*/
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#define OS_TASK_STATUS_RUNNING 0x0004U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is suspended.
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*/
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#define OS_TASK_STATUS_SUSPENDED 0x0008U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is blocked.
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*/
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#define OS_TASK_STATUS_PENDING 0x0010U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is delayed.
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*/
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#define OS_TASK_STATUS_DELAY 0x0020U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The time for waiting for an event to occur expires.
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*/
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#define OS_TASK_STATUS_TIMEOUT 0x0040U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is pend for a period of time.
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*/
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#define OS_TASK_STATUS_PEND_TIME 0x0080U
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#define OS_TASK_STATUS_BLOCKED (OS_TASK_STATUS_INIT | OS_TASK_STATUS_PENDING | \
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OS_TASK_STATUS_DELAY | OS_TASK_STATUS_PEND_TIME)
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is exit.
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*/
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#define OS_TASK_STATUS_EXIT 0x0100U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task control block is unused.
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*/
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#define OS_TASK_STATUS_UNUSED 0x0200U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is joinable.
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*/
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#define OS_TASK_FLAG_PTHREAD_JOIN 0x0400U
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/**
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* @ingroup los_task
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* Flag that indicates the task or task control block status.
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*
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* The task is status detached.
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*/
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#define OS_TASK_FLAG_DETACHED 0x0800U
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/**
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* @ingroup los_task
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* Flag that indicates the task property.
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*
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* The task is system-level task, like idle, swtmr and etc.
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*/
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#define OS_TASK_FLAG_SYSTEM_TASK 0x1000U
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/**
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* @ingroup los_task
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* Flag that indicates the task property.
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*
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* The task is no-delete system task, like resourceTask.
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*/
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#define OS_TASK_FLAG_NO_DELETE 0x2000U
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/**
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* @ingroup los_task
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* Flag that indicates the task property.
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*
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* Specifies the process creation task.
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*/
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#define OS_TASK_FLAG_SPECIFIES_PROCESS 0x4000U
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/**
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* @ingroup los_task
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* Boundary on which the stack size is aligned.
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*
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*/
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#define OS_TASK_STACK_SIZE_ALIGN 16U
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/**
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* @ingroup los_task
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* Boundary on which the stack address is aligned.
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*
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*/
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#define OS_TASK_STACK_ADDR_ALIGN 8U
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/**
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* @ingroup los_task
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* Number of usable task priorities.
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*/
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#define OS_TSK_PRINUM (OS_TASK_PRIORITY_LOWEST - OS_TASK_PRIORITY_HIGHEST + 1)
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/**
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* @ingroup los_task
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* @brief Check whether a task ID is valid.
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*
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* @par Description:
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* This API is used to check whether a task ID, excluding the idle task ID, is valid.
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* @attention None.
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*
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* @param taskID [IN] Task ID.
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*
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* @retval 0 or 1. One indicates that the task ID is invalid, whereas zero indicates that the task ID is valid.
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* @par Dependency:
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* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
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* @see
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*/
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#define OS_TSK_GET_INDEX(taskID) (taskID)
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/**
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* @ingroup los_task
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* @brief Obtain the pointer to a task control block.
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*
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* @par Description:
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* This API is used to obtain the pointer to a task control block using a corresponding parameter.
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* @attention None.
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*
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* @param ptr [IN] Parameter used for obtaining the task control block.
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*
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* @retval Pointer to the task control block.
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* @par Dependency:
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* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
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* @see
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*/
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#define OS_TCB_FROM_PENDLIST(ptr) LOS_DL_LIST_ENTRY(ptr, LosTaskCB, pendList)
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/**
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* @ingroup los_task
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* @brief Obtain the pointer to a task control block.
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*
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* @par Description:
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* This API is used to obtain the pointer to a task control block that has a specified task ID.
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* @attention None.
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*
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* @param TaskID [IN] Task ID.
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*
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* @retval Pointer to the task control block.
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* @par Dependency:
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* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
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* @see
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*/
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#define OS_TCB_FROM_TID(taskID) (((LosTaskCB *)g_taskCBArray) + (taskID))
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#ifndef LOSCFG_STACK_POINT_ALIGN_SIZE
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#define LOSCFG_STACK_POINT_ALIGN_SIZE (sizeof(UINTPTR) * 2)
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#endif
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#define OS_TASK_RESOURCE_STATCI_SIZE 0x1000
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#define OS_TASK_RESOURCE_FREE_PRIORITY 5
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#define OS_RESOURCE_EVENT_MASK 0xFF
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#define OS_RESOURCE_EVENT_OOM 0x02
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#define OS_RESOURCE_EVENT_FREE 0x04
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#define OS_TCB_NAME_LEN 32
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typedef struct {
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VOID *stackPointer; /**< Task stack pointer */
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UINT16 taskStatus; /**< Task status */
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/* The scheduling */
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UINT16 priority; /**< Task priority */
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UINT16 policy;
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UINT64 startTime; /**< The start time of each phase of task */
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UINT64 irqStartTime; /**< Interrupt start time */
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UINT32 irqUsedTime; /**< Interrupt consumption time */
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UINT32 initTimeSlice; /**< Task init time slice */
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INT32 timeSlice; /**< Task remaining time slice */
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UINT32 waitTimes; /**< Task delay time, tick number */
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SortLinkList sortList; /**< Task sortlink node */
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UINT32 stackSize; /**< Task stack size */
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UINTPTR topOfStack; /**< Task stack top */
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UINT32 taskID; /**< Task ID */
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TSK_ENTRY_FUNC taskEntry; /**< Task entrance function */
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VOID *joinRetval; /**< pthread adaption */
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VOID *taskMux; /**< Task-held mutex */
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VOID *taskEvent; /**< Task-held event */
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UINTPTR args[4]; /**< Parameter, of which the maximum number is 4 */
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CHAR taskName[OS_TCB_NAME_LEN]; /**< Task name */
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LOS_DL_LIST pendList; /**< Task pend node */
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LOS_DL_LIST threadList; /**< thread list */
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UINT32 eventMask; /**< Event mask */
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UINT32 eventMode; /**< Event mode */
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UINT32 priBitMap; /**< BitMap for recording the change of task priority,
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the priority can not be greater than 31 */
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#ifdef LOSCFG_KERNEL_CPUP
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OsCpupBase taskCpup; /**< task cpu usage */
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#endif
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INT32 errorNo; /**< Error Num */
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UINT32 signal; /**< Task signal */
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sig_cb sig;
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#if (LOSCFG_KERNEL_SMP == YES)
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UINT16 currCpu; /**< CPU core number of this task is running on */
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UINT16 lastCpu; /**< CPU core number of this task is running on last time */
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UINT16 cpuAffiMask; /**< CPU affinity mask, support up to 16 cores */
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#if (LOSCFG_KERNEL_SMP_TASK_SYNC == YES)
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UINT32 syncSignal; /**< Synchronization for signal handling */
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#endif
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#if (LOSCFG_KERNEL_SMP_LOCKDEP == YES)
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LockDep lockDep;
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#endif
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#endif
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#ifdef LOSCFG_SCHED_DEBUG
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SchedStat schedStat; /**< Schedule statistics */
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#endif
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UINTPTR userArea;
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UINTPTR userMapBase;
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UINT32 userMapSize; /**< user thread stack size ,real size : userMapSize + USER_STACK_MIN_SIZE */
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UINT32 processID; /**< Which belong process */
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FutexNode futex;
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LOS_DL_LIST joinList; /**< join list */
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LOS_DL_LIST lockList; /**< Hold the lock list */
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UINTPTR waitID; /**< Wait for the PID or GID of the child process */
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UINT16 waitFlag; /**< The type of child process that is waiting, belonging to a group or parent,
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a specific child process, or any child process */
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#if (LOSCFG_KERNEL_LITEIPC == YES)
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UINT32 ipcStatus;
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LOS_DL_LIST msgListHead;
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BOOL accessMap[LOSCFG_BASE_CORE_TSK_LIMIT];
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#endif
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} LosTaskCB;
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typedef struct {
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LosTaskCB *runTask;
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LosTaskCB *newTask;
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} LosTask;
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struct ProcessSignalInfo {
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siginfo_t *sigInfo; /**< Signal to be dispatched */
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LosTaskCB *defaultTcb; /**< Default TCB */
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LosTaskCB *unblockedTcb; /**< The signal unblock on this TCB*/
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LosTaskCB *awakenedTcb; /**< This TCB was awakened */
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LosTaskCB *receivedTcb; /**< This TCB received the signal */
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};
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typedef int (*ForEachTaskCB)(LosTaskCB *tcb, void *arg);
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/**
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* @ingroup los_task
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* Maximum number of tasks.
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*
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*/
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extern UINT32 g_taskMaxNum;
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/**
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* @ingroup los_task
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* Starting address of a task.
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*
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*/
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extern LosTaskCB *g_taskCBArray;
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/**
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* @ingroup los_task
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* Time slice structure.
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*/
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typedef struct {
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LosTaskCB *task; /**< Current running task */
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UINT16 time; /**< Expiration time point */
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UINT16 timeout; /**< Expiration duration */
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} OsTaskRobin;
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STATIC INLINE LosTaskCB *OsCurrTaskGet(VOID)
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{
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return (LosTaskCB *)ArchCurrTaskGet();
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}
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STATIC INLINE VOID OsCurrTaskSet(LosTaskCB *task)
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{
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ArchCurrTaskSet(task);
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}
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STATIC INLINE VOID OsCurrUserTaskSet(UINTPTR thread)
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{
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ArchCurrUserTaskSet(thread);
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}
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STATIC INLINE LosTaskCB *OsGetTaskCB(UINT32 taskID)
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{
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return OS_TCB_FROM_TID(taskID);
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}
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STATIC INLINE BOOL OsTaskIsUnused(const LosTaskCB *taskCB)
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{
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if (taskCB->taskStatus & OS_TASK_STATUS_UNUSED) {
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return TRUE;
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}
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return FALSE;
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}
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STATIC INLINE BOOL OsTaskIsRunning(const LosTaskCB *taskCB)
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{
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if (taskCB->taskStatus & OS_TASK_STATUS_RUNNING) {
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return TRUE;
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}
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return FALSE;
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}
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STATIC INLINE BOOL OsTaskIsInactive(const LosTaskCB *taskCB)
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{
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if (taskCB->taskStatus & (OS_TASK_STATUS_UNUSED | OS_TASK_STATUS_INIT | OS_TASK_STATUS_EXIT)) {
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return TRUE;
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}
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return FALSE;
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}
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#define OS_TID_CHECK_INVALID(taskID) ((UINT32)(taskID) >= g_taskMaxNum)
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/* get task info */
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#define OS_ALL_TASK_MASK 0xFFFFFFFF
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extern UINT32 OsTaskSetDeatchUnsafe(LosTaskCB *taskCB);
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extern VOID OsTaskJoinPostUnsafe(LosTaskCB *taskCB);
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extern UINT32 OsTaskJoinPendUnsafe(LosTaskCB *taskCB);
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extern BOOL OsTaskCpuAffiSetUnsafe(UINT32 taskID, UINT16 newCpuAffiMask, UINT16 *oldCpuAffiMask);
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extern VOID OsTaskSchedule(LosTaskCB *, LosTaskCB *);
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extern VOID OsTaskContextLoad(LosTaskCB *newTask);
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extern VOID OsIdleTask(VOID);
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extern UINT32 OsIdleTaskCreate(VOID);
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extern UINT32 OsTaskInit(VOID);
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extern UINT32 OsShellCmdDumpTask(INT32 argc, const CHAR **argv);
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extern UINT32 OsShellCmdTskInfoGet(UINT32 taskID, VOID *seqfile, UINT16 flag);
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extern LosTaskCB *OsGetMainTask(VOID);
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extern VOID OsSetMainTask(VOID);
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extern UINT32 OsGetIdleTaskId(VOID);
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extern VOID OsTaskEntry(UINT32 taskID);
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extern SortLinkAttribute *OsTaskSortLinkGet(VOID);
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extern VOID OsTaskProcSignal(VOID);
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extern UINT32 OsTaskDeleteUnsafe(LosTaskCB *taskCB, UINT32 status, UINT32 intSave);
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extern VOID OsTaskResourcesToFree(LosTaskCB *taskCB);
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extern VOID OsRunTaskToDelete(LosTaskCB *taskCB);
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extern UINT32 OsTaskSyncWait(const LosTaskCB *taskCB);
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extern UINT32 OsCreateUserTask(UINT32 processID, TSK_INIT_PARAM_S *initParam);
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extern INT32 OsSetTaskName(LosTaskCB *taskCB, const CHAR *name, BOOL setPName);
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extern VOID OsTaskCBRecyleToFree(VOID);
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extern VOID OsTaskExitGroup(UINT32 status);
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extern VOID OsTaskToExit(LosTaskCB *taskCB, UINT32 status);
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extern VOID OsExecDestroyTaskGroup(VOID);
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extern VOID OsProcessSuspendAllTask(VOID);
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extern UINT32 OsUserTaskOperatePermissionsCheck(LosTaskCB *taskCB);
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extern VOID OsWriteResourceEvent(UINT32 events);
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extern UINT32 OsCreateResourceFreeTask(VOID);
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#define OS_TASK_WAIT_ANYPROCESS (1 << 0U)
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#define OS_TASK_WAIT_PROCESS (1 << 1U)
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#define OS_TASK_WAIT_GID (1 << 2U)
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#ifdef LOSCFG_DEBUG_VERSION
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#define OS_TASK_WAIT_SEM (OS_TASK_WAIT_GID + 1)
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#define OS_TASK_WAIT_QUEUE (OS_TASK_WAIT_SEM + 1)
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#define OS_TASK_WAIT_JOIN (OS_TASK_WAIT_QUEUE + 1)
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#define OS_TASK_WAIT_SIGNAL (OS_TASK_WAIT_JOIN + 1)
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#define OS_TASK_WAIT_LITEIPC (OS_TASK_WAIT_SIGNAL + 1)
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#define OS_TASK_WAIT_MUTEX (OS_TASK_WAIT_LITEIPC + 1)
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#define OS_TASK_WAIT_FUTEX (OS_TASK_WAIT_MUTEX + 1)
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#define OS_TASK_WAIT_EVENT (OS_TASK_WAIT_FUTEX + 1)
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#define OS_TASK_WAIT_COMPLETE (OS_TASK_WAIT_EVENT + 1)
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STATIC INLINE VOID OsTaskWaitSetPendMask(UINT16 mask, UINTPTR lockID, UINT32 timeout)
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{
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LosTaskCB *runTask = OsCurrTaskGet();
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runTask->waitID = lockID;
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runTask->waitFlag = mask;
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(VOID)timeout;
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#ifdef LOSCFG_KERNEL_TRACE
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UINT16 status = OS_TASK_STATUS_PENDING;
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if (timeout != LOS_WAIT_FOREVER) {
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status |= OS_TASK_STATUS_PEND_TIME;
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}
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LOS_Trace(LOS_TRACE_TASK, runTask->taskEntry, status, mask, lockID);
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#endif
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}
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STATIC INLINE VOID OsTaskWakeClearPendMask(LosTaskCB *resumeTask)
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{
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resumeTask->waitID = 0;
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resumeTask->waitFlag = 0;
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#ifdef LOSCFG_KERNEL_TRACE
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LosTaskCB *runTask = OsCurrTaskGet();
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LOS_Trace(LOS_TRACE_TASK, resumeTask->taskEntry, (UINT16)OS_TASK_STATUS_READY,
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runTask->taskStatus, runTask->taskEntry);
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#endif
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}
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STATIC INLINE VOID OsTraceTaskSchedule(LosTaskCB *newTask, LosTaskCB *runTask)
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{
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(VOID)newTask;
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(VOID)runTask;
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#ifdef LOSCFG_KERNEL_TRACE
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LOS_Trace(LOS_TRACE_TASK, newTask->taskEntry, (UINT16)OS_TASK_STATUS_RUNNING,
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runTask->taskStatus, runTask->taskEntry);
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#endif
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}
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#else
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#define OsTaskWaitSetPendMask(mask, lockID, timeout)
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#define OsTaskWakeClearPendMask(taskCB)
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#define OsTraceTaskSchedule(newTask, runTask)
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#endif
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _LOS_TASK_PRI_H */
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