volatile uint32_t invcentory = 100;
volatile uint32_t retailCount = 0;
volatile uint32_t onlineCount = 0;
//句柄值为空
SemaphoreHandle_t mutex_food = NULL;

//线上售货量
void onlinetask(void *pt)
{
  while(1)
  {
      //获取句柄，意味着拿到了钥匙
      if(xSemaphoreTake(mutex_food,1000) == pdPASS)
      {
        uint32_t inv = invcentory;
        delay(10);
        if(invcentory > 0)
        {
          invcentory = inv - 1;
          onlineCount++;
          //释放句柄
          xSemaphoreGive(mutex_food);
        delay((100));
        }
        
      }
  }
  vTaskDelay(100);
}


void retailtask(void *pt)
{
  while(1)
  {
      //获取句柄，意味着拿到了钥匙
      if(xSemaphoreTake(mutex_food,1000) == pdPASS)
      {
        uint32_t inv1 = invcentory;
        delay(10);
        if(invcentory > 0)
        {
          invcentory = inv1 - 1;
          retailCount++;
          //释放句柄
         xSemaphoreGive(mutex_food);
        delay((100));
        }
         
      }
    
  }
  
}

//后台监管
void TotalTask(void *pt)
{
  while(1)
  {
    if(xSemaphoreTake(mutex_food,1000) == pdPASS)
    {
      printf("\n----------------\n");
      printf("共销售：%d\n",onlineCount+retailCount);
      printf("线上销售：%d\n",onlineCount);
      printf("线下销售：%d\n",retailCount);
      if(invcentory == 0)
      {
        printf("共销售：%d\n",onlineCount+retailCount);
      }
      xSemaphoreGive(mutex_food);
    }
  }
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S3!");
  //创建句柄
  mutex_food = xSemaphoreCreateMutex();
  xTaskCreate(onlinetask,"线上",1024 * 4,NULL,1,NULL);
  xTaskCreate(retailtask,"线下",1024 * 4,NULL,1,NULL);
  xTaskCreate(TotalTask,"监视",1024 * 4,NULL,1,NULL);
}

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