/*
* @Author Giang Hoang CT050413
*/


#include <Arduino_FreeRTOS.h>
#include <queue.h>
#include <semphr.h>

SemaphoreHandle_t xSemaphore;

// Định nghĩa các task
void Task1(void *pvParameters);
void Task2(void *pvParameters);

void setup() {
  Serial.begin(9600);

  xSemaphore = xSemaphoreCreateCounting(1, 1); // Max =1 & initial = 1

  xTaskCreate(Task1,"Task 1",128,NULL,1,NULL);

  xTaskCreate(Task2,"Task 2",128,NULL,1,NULL);

  // Bắt đầu RTOS scheduler
  vTaskStartScheduler();
}

void loop() {
  // no-op
}

void Task1(void *pvParameters) {
  (void) pvParameters;

  for (;;) {
    if (xSemaphoreTake(xSemaphore, portMAX_DELAY) == pdTRUE) {
      Serial.println("task 1 is running and using serial");
      vTaskDelay(10 / portTICK_PERIOD_MS);

      xSemaphoreGive(xSemaphore);

      vTaskDelay(10 / portTICK_PERIOD_MS);
    }
  }
}

void Task2(void *pvParameters) {
  (void) pvParameters;

  for (;;) {
    if (xSemaphoreTake(xSemaphore, portMAX_DELAY) == pdTRUE) {
      Serial.println("task 2 is running and using serial");
      vTaskDelay(10 / portTICK_PERIOD_MS);

      xSemaphoreGive(xSemaphore);

      vTaskDelay(10 / portTICK_PERIOD_MS);
    }
  }
}