596 lines
19 KiB
C
596 lines
19 KiB
C
/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, 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_sched_pri.h"
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#include "los_sortlink_pri.h"
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#include "los_spinlock.h"
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#if (LOSCFG_KERNEL_SCHED_STATISTICS == YES)
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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 __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_SUSPEND 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_PEND 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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/**
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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 idle task, Belong to idle process.
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*/
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#define OS_TASK_FLAG_IDLEFLAG 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 system-level task, like idle, swtmr and etc.
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*/
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#define OS_TASK_FLAG_SYSTEM_TASK 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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* Flag that indicates the task property.
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*
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* The task is system-level task, like ResourcesTask.
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*/
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#define OS_TASK_FLAG_NO_DELETE 0x8000U
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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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UINT16 priority; /**< Task priority */
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UINT16 policy;
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UINT16 timeSlice; /**< Remaining time slice */
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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 *taskSem; /**< Task-held semaphore */
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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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SortLinkList sortList; /**< Task sortlink node */
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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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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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UINT32 timerCpu; /**< CPU core number of this task is delayed or pended */
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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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#if (LOSCFG_KERNEL_SCHED_STATISTICS == YES)
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SchedStat schedStat; /**< Schedule statistics */
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#endif
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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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UINT32 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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#define OS_PROCESS_PRI_QUEUE_SIZE(processCB) OsPriQueueProcessSize(g_priQueueList, (processCB)->priority)
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#define OS_TASK_PRI_QUEUE_ENQUEUE(processCB, taskCB) \
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OsPriQueueEnqueue((processCB)->threadPriQueueList, &((processCB)->threadScheduleMap), \
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&((taskCB)->pendList), (taskCB)->priority)
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#define OS_TASK_PRI_QUEUE_ENQUEUE_HEAD(processCB, taskCB) \
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OsPriQueueEnqueueHead((processCB)->threadPriQueueList, &((processCB)->threadScheduleMap), \
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&((taskCB)->pendList), (taskCB)->priority)
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#define OS_TASK_PRI_QUEUE_DEQUEUE(processCB, taskCB) \
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OsPriQueueDequeue((processCB)->threadPriQueueList, &((processCB)->threadScheduleMap), &((taskCB)->pendList))
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#define OS_TASK_SCHED_QUEUE_ENQUEUE(taskCB, status) OsTaskSchedQueueEnqueue(taskCB, status)
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#define OS_TASK_SCHED_QUEUE_DEQUEUE(taskCB, status) OsTaskSchedQueueDequeue(taskCB, status)
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#define OS_PROCESS_PRI_QUEUE_ENQUEUE(processCB) \
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OsPriQueueEnqueue(g_priQueueList, &g_priQueueBitmap, &((processCB)->pendList), (processCB)->priority)
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#define OS_PROCESS_PRI_QUEUE_ENQUEUE_HEAD(processCB) \
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OsPriQueueEnqueueHead(g_priQueueList, &g_priQueueBitmap, &((processCB)->pendList), (processCB)->priority)
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#define OS_PROCESS_PRI_QUEUE_DEQUEUE(processCB) OsPriQueueProcessDequeue(&((processCB)->pendList))
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#define OS_TASK_PRI_QUEUE_SIZE(processCB, taskCB) OsPriQueueSize((processCB)->threadPriQueueList, (taskCB)->priority)
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#define OS_TASK_GET_NEW(processCB) LOS_DL_LIST_ENTRY(OsPriQueueTop((processCB)->threadPriQueueList, \
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&((processCB)->threadScheduleMap)), \
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LosTaskCB, pendList)
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#define OS_PROCESS_GET_NEW() \
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LOS_DL_LIST_ENTRY(OsPriQueueTop(g_priQueueList, &g_priQueueBitmap), LosProcessCB, pendList)
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/**
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* @ingroup los_task
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* @brief Modify the priority of task.
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*
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* @par Description:
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* This API is used to modify the priority of task.
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*
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* @attention
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* <ul>
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* <li>The taskCB should be a correct pointer to task control block structure.</li>
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* <li>the priority should be in [0, OS_TASK_PRIORITY_LOWEST].</li>
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* </ul>
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*
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* @param taskCB [IN] Type #LosTaskCB * pointer to task control block structure.
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* @param priority [IN] Type #UINT16 the priority of task.
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*
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* @retval None.
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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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extern VOID OsTaskPriModify(LosTaskCB *taskCB, UINT16 priority);
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/**
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* @ingroup los_task
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* @brief pend running task to pendlist
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*
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* @par Description:
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* This API is used to pend task to pendlist and add to sorted delay list.
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*
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* @attention
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* <ul>
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* <li>The list should be a vaild pointer to pendlist.</li>
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* </ul>
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*
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* @param list [IN] Type #LOS_DL_LIST * pointer to list which running task will be pended.
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* @param timeout [IN] Type #UINT32 Expiry time. The value range is [0,LOS_WAIT_FOREVER].
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* @param needSched [IN] Type #bool need sched
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*
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|
* @retval LOS_OK wait success
|
|
* @retval LOS_NOK pend out
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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 OsTaskWake
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|
*/
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|
extern UINT32 OsTaskWait(LOS_DL_LIST *list, UINT32 timeout, BOOL needSched);
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|
|
/**
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* @ingroup los_task
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* @brief delete task from pendlist.
|
|
*
|
|
* @par Description:
|
|
* This API is used to delete task from pendlist and also add to the priqueue.
|
|
*
|
|
* @attention
|
|
* <ul>
|
|
* <li>The resumedTask should be the task which will be add to priqueue.</li>
|
|
* </ul>
|
|
*
|
|
* @param resumedTask [IN] Type #LosTaskCB * pointer to the task which will be add to priqueue.
|
|
*
|
|
* @retval None.
|
|
* @par Dependency:
|
|
* <ul><li>los_task_pri.h: the header file that contains the API declaration.</li></ul>
|
|
* @see OsTaskWait
|
|
*/
|
|
extern VOID OsTaskWake(LosTaskCB *resumedTask);
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|
|
|
extern UINT32 OsTaskSetDeatchUnsafe(LosTaskCB *taskCB);
|
|
extern VOID OsTaskJoinPostUnsafe(LosTaskCB *taskCB);
|
|
extern UINT32 OsTaskJoinPendUnsafe(LosTaskCB *taskCB);
|
|
extern VOID OsTaskSchedule(LosTaskCB *, LosTaskCB *);
|
|
extern VOID OsStartToRun(LosTaskCB *);
|
|
extern VOID OsTaskScan(VOID);
|
|
extern VOID OsIdleTask(VOID);
|
|
extern UINT32 OsIdleTaskCreate(VOID);
|
|
extern UINT32 OsTaskInit(VOID);
|
|
extern UINT32 OsShellCmdDumpTask(INT32 argc, const CHAR **argv);
|
|
extern UINT32 OsShellCmdTskInfoGet(UINT32 taskID, VOID *seqfile, UINT16 flag);
|
|
extern VOID* OsGetMainTask(VOID);
|
|
extern VOID OsSetMainTask(VOID);
|
|
extern LosTaskCB* OsGetTopTask(VOID);
|
|
extern UINT32 OsGetIdleTaskId(VOID);
|
|
extern VOID OsTaskEntry(UINT32 taskID);
|
|
extern SortLinkAttribute *OsTaskSortLinkGet(VOID);
|
|
extern UINT32 OsTaskSwitchCheck(LosTaskCB *oldTask, LosTaskCB *newTask);
|
|
extern UINT32 OsTaskProcSignal(VOID);
|
|
extern VOID OsSchedStatistics(LosTaskCB *runTask, LosTaskCB *newTask);
|
|
extern UINT32 OsTaskDeleteUnsafe(LosTaskCB *taskCB, UINT32 status, UINT32 intSave);
|
|
extern VOID OsTaskResourcesToFree(LosTaskCB *taskCB);
|
|
extern VOID OsRunTaskToDelete(LosTaskCB *taskCB);
|
|
extern UINT32 OsTaskSyncWait(const LosTaskCB *taskCB);
|
|
extern UINT32 OsCreateUserTask(UINT32 processID, TSK_INIT_PARAM_S *initParam);
|
|
extern INT32 OsTaskSchedulerSetUnsafe(LosTaskCB *taskCB, UINT16 policy, UINT16 priority,
|
|
BOOL policyFlag, UINT32 intSave);
|
|
extern INT32 OsSetTaskName(LosTaskCB *taskCB, const CHAR *name, BOOL setPName);
|
|
extern VOID OsTaskCBRecyleToFree(VOID);
|
|
extern VOID OsTaskExitGroup(UINT32 status);
|
|
extern VOID OsTaskToExit(LosTaskCB *taskCB, UINT32 status);
|
|
extern VOID OsExecDestroyTaskGroup(VOID);
|
|
extern VOID OsProcessSuspendAllTask(VOID);
|
|
extern UINT32 OsUserTaskOperatePermissionsCheck(LosTaskCB *taskCB);
|
|
extern VOID OsWriteResourceEvent(UINT32 events);
|
|
extern UINT32 OsCreateResourceFreeTask(VOID);
|
|
#ifdef __cplusplus
|
|
#if __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* _LOS_TASK_PRI_H */
|