IoT-Based Smart Management of Healthcare Services in Hospital Buildings during COVID-19 and Future Pandemics

Algorithm 2

Getting the sum value (last value of the three sensors) and publishing it to the broker to calculate the number of people in each room.

  pthread_t pid1, pid2, pid3, pid4, pid5;

  t1= pthread_create(&pid[i], NULL, thread1, (void ) &input1);

  if(t1){

  printf(“Error creating thread1%d!”, i);

  return -1;

  t2= pthread_create(&pid[i], NULL, thread2, (void ) &input2);

  if(t2){

  printf(“Error creating thread2%d!”, i);

  return -1;

  t3= pthread_create(&pid[i], NULL, thread3, (void ) &input3);

  if(t3){

  printf(“Error creating thread3%d!”, i);

  return -1;

  t4= pthread_create(&pid[i], NULL, thread4, (void ) &input4);

  if(t4){

  printf(“Error creating thread4%d!”, i);

  return -1;

  t5= pthread_create(&pid[i], NULL, thread5, (void ) &input5);

  if(t5){

  printf(“Error creating thread5%d!”, i);

  return -1;