265 lines
9.6 KiB
C
Executable File
265 lines
9.6 KiB
C
Executable File
/*
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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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/**
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* @defgroup los_cpup CPU usage
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* @ingroup kernel
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*/
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#ifndef _LOS_CPUP_H
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#define _LOS_CPUP_H
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#include "los_hwi.h"
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#include "los_base.h"
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#include "los_sys.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_cpup
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* CPU usage error code: The request for memory fails.
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*
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* Value: 0x02001e00
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*
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* Solution: Decrease the maximum number of processes.
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*/
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#define LOS_ERRNO_CPUP_NO_MEMORY LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x00)
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/**
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* @ingroup los_cpup
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* CPU usage error code: The pointer to an input parameter is NULL.
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*
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* Value: 0x02001e01
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*
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* Solution: Check whether the pointer to the input parameter is usable.
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*/
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#define LOS_ERRNO_CPUP_PROCESS_PTR_NULL LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x01)
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/**
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* @ingroup los_cpup
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* CPU usage error code: The CPU usage is not initialized.
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*
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* Value: 0x02001e02
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*
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* Solution: Check whether the CPU usage is initialized.
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*/
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#define LOS_ERRNO_CPUP_NO_INIT LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x02)
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/**
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* @ingroup los_cpup
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* CPU usage error code: The number of threads is invalid.
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*
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* Value: 0x02001e03
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*
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* Solution: Check whether the number of threads is applicable for the current operation.
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*/
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#define LOS_ERRNO_CPUP_MAXNUM_INVALID LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x03)
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/**
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* @ingroup los_cpup
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* CPU usage error code: The target process is not created.
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*
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* Value: 0x02001e04
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*
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* Solution: Check whether the target process is created.
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*/
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#define LOS_ERRNO_CPUP_PROCESS_NO_CREATED LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x04)
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/**
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* @ingroup los_cpup
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* CPU usage error code: The target process ID is invalid.
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*
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* Value: 0x02001e05
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*
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* Solution: Check whether the target process ID is applicable for the current operation.
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*/
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#define LOS_ERRNO_CPUP_PID_INVALID LOS_ERRNO_OS_ERROR(LOS_MOD_CPUP, 0x05)
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/**
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* @ingroup los_cpup
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* Sum of single core cpup with all processes. It means the value of cpup is a permillage.
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*/
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#define LOS_CPUP_SINGLE_CORE_PRECISION 1000
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/**
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* @ingroup los_cpup
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* Multiple of current cpup precision change to percent.
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*/
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#define LOS_CPUP_PRECISION_MULT (LOS_CPUP_SINGLE_CORE_PRECISION / 100)
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/**
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* @ingroup los_cpup
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* Sum of all core cpup with all processes. It means the value of cpup is a permillage.
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*/
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#define LOS_CPUP_PRECISION (LOS_CPUP_SINGLE_CORE_PRECISION * LOSCFG_KERNEL_CORE_NUM)
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/**
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* @ingroup los_cpup
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* Count the CPU usage structures of all processs.
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*/
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typedef struct tagCpupInfo {
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UINT16 usStatus; /**< Save the cur process status */
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UINT32 uwUsage; /**< Usage. The value range is [0,1000]. */
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} CPUP_INFO_S;
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/**
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* @ingroup los_cpup
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* Query the CPU usage of the system.
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*/
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enum {
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CPUP_LAST_TEN_SECONDS = 0, /**< Display CPU usage in the last ten seconds. */
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CPUP_LAST_ONE_SECONDS = 1, /**< Display CPU usage in the last one seconds. */
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CPUP_ALL_TIME = 0xffff /**< Display CPU usage from system startup to now. */
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};
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/**
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* @ingroup los_cpup
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* @brief Obtain the historical CPU usage.
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*
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* @par Description:
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* This API is used to obtain the historical CPU usage.
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* @attention
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* <ul>
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* <li>This API can be called only after the CPU usage is initialized. Otherwise, the CPU usage fails to be
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* obtained.</li>
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* </ul>
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*
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* @param mode [IN] UINT16. process mode. The parameter value 0 indicates that the CPU usage within 10s will be
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* obtained, and the parameter value 1 indicates that the CPU usage in the former 1s will
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* be obtained. Other values indicate that the CPU usage in all time will be obtained.
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*
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* @retval #LOS_ERRNO_CPUP_NO_INIT The CPU usage is not initialized.
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* @retval #UINT32 [0,100], historical CPU usage, of which the precision is adjustable.
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* @par Dependency:
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* <ul><li>los_cpup.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 UINT32 LOS_HistorySysCpuUsage(UINT16 mode);
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/**
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* @ingroup los_cpup
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* @brief Obtain the historical CPU usage of a specified process.
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*
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* @par Description:
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* This API is used to obtain the historical CPU usage of a process specified by a passed-in process ID.
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* @attention
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* <ul>
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* <li>This API can be called only after the CPU usage is initialized. Otherwise,
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* the CPU usage fails to be obtained.</li>
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* <li>The passed-in process ID must be valid and the process specified by the process ID must be created. Otherwise,
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* the CPU usage fails to be obtained.</li>
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* </ul>
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*
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* @param pid [IN] UINT32. process ID.
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* @param mode [IN] UINT16. process mode. The parameter value 0 indicates that the CPU usage within 10s will be
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* obtained, and the parameter value 1 indicates that the CPU usage in the former 1s will
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* be obtained. Other values indicate that the CPU usage in the period that is less than
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* 1s will be obtained.
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*
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* @retval #LOS_ERRNO_CPUP_NO_INIT The CPU usage is not initialized.
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* @retval #LOS_ERRNO_CPUP_PID_INVALID The target process ID is invalid.
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* @retval #LOS_ERRNO_CPUP_PROCESS_NO_CREATED The target process is not created.
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* @retval #UINT32 [0,100], CPU usage of the specified process.
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* @par Dependency:
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* <ul><li>los_cpup.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 UINT32 LOS_HistoryProcessCpuUsage(UINT32 pid, UINT16 mode);
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/**
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* @ingroup los_cpup
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* @brief Obtain the CPU usage of processes and hwi.
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*
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* @par Description:
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* This API is used to obtain the CPU usage of processes and hwi according to the passed-in maximum number and usFlag
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* which indicate obtain the cpup usage of process or hwi.
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* @attention
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* <ul>
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* <li>This API can be called only after the CPU usage is initialized. Otherwise, the CPU usage fails to be
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* obtained.</li>
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* <li>The input parameter pointer must not be NULL, and the maximum number must be usable. Otherwise, the CPU usage
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* fails to be obtained.</li>
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* <li>The input parameter pointer should point to the structure array whose size be greater than
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* (maxNum * sizeof (CPUP_INFO_S)).</li>
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* </ul>
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*
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* @param maxNum [IN] UINT16. The Maximum number of threads or hwis.
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* @param cpupInfo [OUT]Type. CPUP_INFO_S* Pointer to the CPUP information structure to be obtained.
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* @param mode [IN] UINT16. Time mode. The parameter value 0 indicates that the CPU usage within 10s will be
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* obtained, and the parameter value 1 indicates that the CPU usage in the former 1s
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* will be obtained.Other values indicate that the CPU usage in all time will be
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* obtained.
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* @param flag [IN] UINT16. The parameter value 0 indicates that the CPU usage of hwi. Other values indicate that
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* the CPU usage of process.
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*
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* @retval #LOS_ERRNO_CPUP_NO_INIT The CPU usage is not initialized.
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* @retval #LOS_ERRNO_CPUP_PROCESS_PTR_NULL The input parameter pointer is NULL.
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* @retval #LOS_ERRNO_CPUP_MAXNUM_INVALID The maximum number of threads or hwi is invalid.
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* @retval #LOS_OK The CPU usage of all processes or hwi is successfully obtained.
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* @par Dependency:
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* <ul><li>los_cpup.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 UINT32 LOS_AllCpuUsage(UINT16 maxNum, CPUP_INFO_S *cpupInfo, UINT16 mode, UINT16 flag);
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/**
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* @ingroup los_cpup
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* @brief Reset the data of CPU usage.
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*
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* @par Description:
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* This API is used to reset the data of CPU usage.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @param None.
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*
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* @retval #None.
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*
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* @par Dependency:
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* <ul><li>los_cpup.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 LOS_CpupReset(VOID);
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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
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