70022 ESP32_freeRTOS mutex互斥量

优先级别继承

void Task1(void *pvParameters)
{
    BaseType_t iRet;
    while (1)
    {
        printf("Task1:run\n");
        iRet = xSemaphoreTake(mutexHandle, portMAX_DELAY);
        if (iRet == pdPASS)
        {
            printf("Task1:take\n");
            for (int i = 0; i < 10; i++)
            {
                printf("Task1:i=%d\n", i);
                vTaskDelay(1000 / portTICK_PERIOD_MS);
            }
            xSemaphoreGive(mutexHandle);
            printf("Task1:give\n");
            vTaskDelay(1000 / portTICK_PERIOD_MS);
        }
        else
        {
            printf("Task1:take fail\n");
            vTaskDelay(1000 / portTICK_PERIOD_MS);
        }
    }
}
void Task2(void *pvParameters)
{
    printf("Task2:run\n");
    vTaskDelay(1000 / portTICK_PERIOD_MS);
    while (1)
    {
        ;
    }
}
void Task3(void *pvParameters)
{
    BaseType_t iRet;
    printf("Task3:run\n");
    vTaskDelay(1000 / portTICK_PERIOD_MS);
    while (1)
    {
        iRet = xSemaphoreTake(mutexHandle, portMAX_DELAY);
        if (iRet == pdPASS)
        {
            printf("Task3:take\n");
            for (int i = 0; i < 10; i++)
            {
                printf("Task3:i=%d\n", i);
                vTaskDelay(1000 / portTICK_PERIOD_MS);
            }
            xSemaphoreGive(mutexHandle);
            printf("Task3:give\n");
            vTaskDelay(1000 / portTICK_PERIOD_MS);
        }
        else
        {
            printf("Task3:take fail\n");
        }
    }
}

void app_main(void)
{
    mutexHandle = xSemaphoreCreateMutex();

    vTaskSuspendAll();

    xTaskCreate(Task1, "Task1", 2048 * 5, NULL, 1, NULL);
    xTaskCreate(Task2, "Task2", 2048 * 5, NULL, 2, NULL);
    xTaskCreate(Task3, "Task3", 2048 * 5, NULL, 3, NULL);
    xTaskResumeAll();
}