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/*
* Copyright (C) 2017-2024 Alibaba Group Holding Limited
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <rtthread.h>
#include <rthw.h>
static int g_count;
rt_hw_spinlock_t spinlock;
static void thread_entry(void *parameter)
{
int id;
while (1) {
id = rt_hw_cpu_id();
rt_hw_spin_lock(&spinlock);
printf("[%s] in %d core, count:%d \r\n", rt_thread_self()->parent.name, id, g_count++);
rt_hw_spin_unlock(&spinlock);
rt_thread_mdelay(1000);
}
}
void smp_example(void)
{
printf("smp demo start!\r\n");
rt_hw_spin_lock_init(&spinlock);
for (long i = 0; i < CONFIG_NR_CPUS; i++) {
char buf[32];
rt_thread_t tid;
snprintf(buf, sizeof(buf), "thread_%ld", i);
tid = rt_thread_create(buf, thread_entry, RT_NULL, CONFIG_APP_TASK_STACK_SIZE, 10, 5);
if (tid == RT_NULL) {
printf("create %s failed!\r\n", buf);
continue;
}
rt_thread_control(tid, RT_THREAD_CTRL_BIND_CPU, (void *)i);
rt_thread_startup(tid);
}
}
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