volatile int16_t quantity = 100;   // 食物的剩余数量
volatile int16_t eatenCount=0;     // 总共吃掉的实物数量

// 吃货线程
void foodie_task(void *param_t){
  int16_t eaten = 0;        // 吃掉的食物累计
  while(1){
    int16_t qua = quantity;    // 取得剩余库存
    vTaskDelay(pdMS_TO_TICKS(random(10,100)));
    if(quantity>0){
      // 吃掉食物
      quantity = qua-1;
      eaten ++;
      eatenCount++;
    }else{
      // 没有实物了，吃货离开
      printf("------> 没食物了，我一共吃掉: %d个\n",eaten);
      vTaskDelete(NULL);
    }
  }
}

// 厨师，随时查看食物的剩余情况
void chef_task(void *param_t){
  while(1){
    printf("食物剩余量 : %d\n", quantity);
    printf("吃掉的食物 ：%d\n", eatenCount);
    if(quantity<=0){
      printf("---=== 店铺打烊 ===---\n");
      printf("被吃掉的食物 ：%d\n", eatenCount);
      printf("-----------------------\n");
      vTaskDelete(NULL);
    }
    vTaskDelay(pdMS_TO_TICKS(100));
  }
}

void setup() {
  Serial.begin(115200);
  xTaskCreate(foodie_task, "Foodie1", 1024*4, NULL, 1, NULL);
  xTaskCreate(foodie_task, "Foodie2", 1024*4, NULL, 1, NULL);
  xTaskCreate(chef_task, "Chef", 1024*4, NULL, 1, NULL);
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}