2025-09-30 11:56:06 +08:00
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/*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-12-04 tyx first implementation
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* 2021-01-17 Meco Man beautify cmd
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*/
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#include <rtconfig.h>
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#ifdef RT_USING_FINSH
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#include <stdlib.h>
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#include "cpu_usage.h"
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static volatile rt_thread_t tid;
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static void load_thread(void *param)
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{
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while (tid != RT_NULL && (int)tid->user_data)
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{
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while ((int)tid->user_data >= rt_tick_get() % 100);
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rt_thread_delay(1);
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}
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tid = RT_NULL;
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}
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void cpu_usage_msh(int argc, char *argv[])
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{
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if (argc == 3 && rt_strcmp(argv[1], "-l") == 0)
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{
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if (tid)
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{
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tid->user_data = strtoul(argv[2], RT_NULL, 10);
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}
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else
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{
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tid = rt_thread_create("usage", load_thread, RT_NULL, 256*4,
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RT_THREAD_PRIORITY_MAX - 2, 20);
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if (tid == RT_NULL)
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{
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rt_kprintf("create thread failed.");
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}
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tid->user_data = strtoul(argv[2], RT_NULL, 10);
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rt_thread_startup(tid);
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}
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rt_kprintf("CPU usage adjusted to %d%c\n", tid->user_data, '%');
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}
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else if (argc == 1)
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{
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rt_kprintf("cpu: %d\n", (int)cpu_load_average());
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}
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else
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{
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rt_kprintf("%s\n", argv[0]);
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}
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}
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MSH_CMD_EXPORT_ALIAS(cpu_usage_msh, top, cpu usage);
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#endif
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