C++ MSG_task_destroy函数代码示例

int computation_fun(int argc, char *argv[])
{
  const char *pr_name = MSG_process_get_name(MSG_process_self());
  const char *host_name = MSG_host_get_name(MSG_host_self());
  double clock_sta, clock_end;
  atask = MSG_task_create("Task1", 1e9, 1e9, NULL);
  clock_sta = MSG_get_clock();
  XBT_INFO("%s:%s task 1 created %g", host_name, pr_name, clock_sta);
  MSG_task_execute(atask);
  clock_end = MSG_get_clock();

  XBT_INFO("%s:%s task 1 executed %g", host_name, pr_name, clock_end - clock_sta);

  MSG_task_destroy(atask);
  atask = NULL;

  MSG_process_sleep(1);

  atask = MSG_task_create("Task2", 1e10, 1e10, NULL);

  clock_sta = MSG_get_clock();
  XBT_INFO("%s:%s task 2 created %g", host_name, pr_name, clock_sta);
  MSG_task_execute(atask);
  clock_end = MSG_get_clock();

  XBT_INFO("%s:%s task 2 executed %g", host_name, pr_name, clock_end - clock_sta);

  MSG_task_destroy(atask);
  atask = NULL;

  return 0;
}

int master(int argc, char *argv[])
{
  const char *hostname = MSG_host_get_name(MSG_host_self());
  int i;

  //the hostname has an empty HDD with a capacity of 100000 (bytes)
  TRACE_host_variable_set(hostname, "HDD_capacity", 100000);
  TRACE_host_variable_set(hostname, "HDD_utilization", 0);

  for (i = 0; i < 10; i++) {
    //create and execute a task just to make the simulated time advance
    msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
    MSG_task_execute (task);
    MSG_task_destroy (task);

    //ADD: after the execution of this task, the HDD utilization increases by 100 (bytes)
    TRACE_host_variable_add(hostname, "HDD_utilization", 100);
  }

  for (i = 0; i < 10; i++) {
    //create and execute a task just to make the simulated time advance
    msg_task_t task = MSG_task_create("task", 10000, 0, NULL);
    MSG_task_execute (task);
    MSG_task_destroy (task);

    //SUB: after the execution of this task, the HDD utilization decreases by 100 (bytes)
    TRACE_host_variable_sub(hostname, "HDD_utilization", 100);
  }
  return 0;
}

/** Receiver function  */
int slave(int argc, char *argv[])
{
  m_task_t task = NULL;
  int res;

  while (1) {
    res = MSG_task_receive(&(task), "master_mailbox");
    if (res != MSG_OK) {
      XBT_INFO("error");
      break;
    }

    char *data = MSG_task_get_data(task);
    if (data && !strcmp(data, "finalize")) {
      MSG_task_destroy(task);
      break;
    }

    XBT_INFO("Executing task %f", MSG_task_get_compute_duration(task));
    MSG_task_execute(task);
    XBT_INFO("End of execution");
    MSG_task_destroy(task);
    task = NULL;
  }
  return 0;
}

static int server(int argc, char *argv[])
{
   msg_task_t task =  MSG_task_create("a", 0, 0, (char*)"Some data");
   MSG_task_isend(task, "mailbox");

   xbt_assert(MSG_task_listen("mailbox")); // True (1)
   XBT_INFO("Task listen works on regular mailboxes");
   task = NULL;
   MSG_task_receive(&task, "mailbox");
   xbt_assert(!strcmp("Some data", MSG_task_get_data(task)), "Data received: %s", (char*)MSG_task_get_data(task));
   MSG_task_destroy(task);
   XBT_INFO("Data successfully received from regular mailbox");

   MSG_mailbox_set_async("mailbox2");
   task = MSG_task_create("b", 0, 0, (char*)"More data");
   MSG_task_isend(task, "mailbox2");

   xbt_assert(MSG_task_listen("mailbox2")); // used to break.
   XBT_INFO("Task listen works on asynchronous mailboxes");
   task = NULL;
   MSG_task_receive(&task, "mailbox2");
   xbt_assert(!strcmp("More data", MSG_task_get_data(task)));
   MSG_task_destroy(task);
   XBT_INFO("Data successfully received from asynchronous mailbox");

   return 0;
}

/** Receiver function  */
int receiver(int argc, char *argv[])
{
  msg_task_t task = NULL;
  _XBT_GNUC_UNUSED msg_error_t res;
  int id = -1;
  char mailbox[80];
  msg_comm_t res_irecv;
  _XBT_GNUC_UNUSED int read;
  read = sscanf(argv[1], "%d", &id);
  xbt_assert(read, "Invalid argument %s\n", argv[1]);
  MSG_process_sleep(10);
  sprintf(mailbox, "receiver-%d", id);
  while (1) {
    res_irecv = MSG_task_irecv(&(task), mailbox);
    XBT_INFO("Wait to receive a task");
    res = MSG_comm_wait(res_irecv, -1);
    MSG_comm_destroy(res_irecv);
    xbt_assert(res == MSG_OK, "MSG_task_get failed");
    XBT_INFO("Received \"%s\"", MSG_task_get_name(task));
    if (!strcmp(MSG_task_get_name(task), "finalize")) {
      MSG_task_destroy(task);
      break;
    }

    XBT_INFO("Processing \"%s\"", MSG_task_get_name(task));
    MSG_task_execute(task);
    XBT_INFO("\"%s\" done", MSG_task_get_name(task));
    MSG_task_destroy(task);
    task = NULL;
  }
  XBT_INFO("I'm done. See you!");
  return 0;
}                               /* end_of_receiver */

/** Emitter function  */
int master(int argc, char *argv[])
{
  double task_comp_size = 5E7;
  double task_comm_size = 1E6;

  char mailbox[256];
  msg_task_t task = NULL;
  msg_host_t jupiter = MSG_get_host_by_name("Jupiter");
  sprintf(mailbox, "jupi");

  task = MSG_task_create("task on", task_comp_size, task_comm_size, NULL);
  XBT_INFO("Sending \"%s\"", task->name);
  if (MSG_task_send_with_timeout(task, mailbox, 1) != MSG_OK)
    MSG_task_destroy(task);

  MSG_process_sleep(1);
  MSG_host_off(jupiter);

  task = MSG_task_create("task off", task_comp_size, task_comm_size, NULL);
  XBT_INFO("Sending \"%s\"", task->name);
  if (MSG_task_send_with_timeout(task, mailbox, 1) != MSG_OK)
    MSG_task_destroy(task);

  MSG_host_on(jupiter);
  xbt_swag_t jupi_processes = MSG_host_get_process_list(jupiter);
  void *process;
  xbt_swag_foreach(process, jupi_processes) {
    MSG_process_kill(process);
  }

/** Receiver function  */
int slave(int argc, char *argv[])
{
  XBT_INFO("I'm a slave");
  while (1) {
    msg_task_t task = NULL;
    int a;
    a = MSG_task_receive(&(task), MSG_host_get_name(MSG_host_self()));
    if (a == MSG_OK) {
      XBT_INFO("Received \"%s\" ", MSG_task_get_name(task));
      if (MSG_task_get_data(task) == FINALIZE) {
        MSG_task_destroy(task);
        break;
      }
      XBT_INFO("Processing \"%s\" ", MSG_task_get_name(task));
      MSG_task_execute(task);
      XBT_INFO("\"%s\" done ", MSG_task_get_name(task));
      MSG_task_destroy(task);
    } else {
      XBT_INFO("Hey ?! What's up ? ");
      xbt_die("Unexpected behavior");
            }
  }
  XBT_INFO("I'm done. See you!");
  return 0;
}                               /* end_of_slave */

/** Receiver function  */
int worker(int argc, char *argv[])
{
  msg_task_t task = NULL;
  _XBT_GNUC_UNUSED int res;
  char channel[1024];

  build_channel_name(channel,MSG_process_get_data(MSG_process_self()),
		     MSG_host_get_name(MSG_host_self()));

  XBT_DEBUG("Receiving on channel \"%s\"", channel);

  while (1) {
    res = MSG_task_receive(&(task),channel);
    xbt_assert(res == MSG_OK, "MSG_task_get failed");
    
    XBT_DEBUG("Received \"%s\"", MSG_task_get_name(task));
    if (!strcmp(MSG_task_get_name(task), "finalize")) {
      MSG_task_destroy(task);
      break;
    }

    XBT_DEBUG("Processing \"%s\"", MSG_task_get_name(task));
    MSG_task_execute(task);
    XBT_DEBUG("\"%s\" done", MSG_task_get_name(task));
    MSG_task_destroy(task);
    task = NULL;
  }
  XBT_DEBUG("I'm done. See you!");
  return 0;
}                               /* end_of_worker */

/** Receiver function  */
int slave(int argc, char *argv[])
{
  m_task_t task = NULL;
  int res;
  int id = -1;
  char mailbox[80];

  xbt_assert1(sscanf(argv[1],"%d", &id),
	 "Invalid argument %s\n",argv[1]);

  sprintf(mailbox,"slave-%d",id);

  while(1) {
    res = MSG_task_receive(&(task), mailbox);
    xbt_assert0(res == MSG_OK, "MSG_task_get failed");

//  INFO1("Received \"%s\"", MSG_task_get_name(task));
    if (!strcmp(MSG_task_get_name(task),"finalize")) {
	MSG_task_destroy(task);
	break;
    }

//    INFO1("Processing \"%s\"", MSG_task_get_name(task));
    MSG_task_execute(task);
//    INFO1("\"%s\" done", MSG_task_get_name(task));
    MSG_task_destroy(task);
    task = NULL;
  }
  INFO0("I'm done. See you!");
  return 0;
} /* end_of_slave */

static int slave(int argc, char *argv[])
{
  msg_task_t task = NULL;
  XBT_ATTRIB_UNUSED int res;
  int id = -1;
  char mailbox[80];

  sprintf(mailbox, "jupi");

  while (1) {
    res = MSG_task_receive(&(task), mailbox);
    xbt_assert(res == MSG_OK, "MSG_task_get failed");

    if (!strcmp(MSG_task_get_name(task), "finalize")) {
      MSG_task_destroy(task);
      break;
    }
    MSG_task_execute(task);
    XBT_INFO("Task \"%s\" done", MSG_task_get_name(task));

    MSG_task_destroy(task);
    task = NULL;
    id--;
  }
  XBT_INFO("I'm done. See you!");
  return 0;
}

static int worker(int argc, char *argv[])
{
  while (1) {
    msg_task_t task = NULL;
    XBT_ATTRIB_UNUSED int res = MSG_task_receive(&(task), "worker_mailbox");
    xbt_assert(res == MSG_OK, "MSG_task_get failed");
    XBT_INFO("Handling task \"%s\"", MSG_task_get_name(task));

    if (!strcmp(MSG_task_get_name(task), "finalize")) {
      XBT_INFO("Destroying task \"%s\"", task->name);
      MSG_task_destroy(task);
      break;
    }

    if (!strcmp(MSG_task_get_name(task), "cancel")) {
      MSG_process_create("worker1", worker_main, task, MSG_host_self());
      MSG_process_sleep(0.1);
      XBT_INFO("Canceling task \"%s\"", task->name);
      MSG_task_cancel(task);
      continue;
    }

    double start = MSG_get_clock();
    MSG_task_execute(task);
    double end = MSG_get_clock();
    XBT_INFO("Task \"%s\" done in %f (amount %f)", MSG_task_get_name(task), end - start,
             MSG_task_get_flops_amount(task));

    MSG_task_destroy(task);
  }
  XBT_INFO("I'm done. See you!");
  return 0;
}

static int execute_load_test(int argc, char* argv[])
{
  msg_host_t host = MSG_host_by_name("MyHost1");

  XBT_INFO("Initial peak speed: %.0E flop/s; number of flops computed so far: %.0E (should be 0)",
           MSG_host_get_speed(host), sg_host_get_computed_flops(host));

  double start = MSG_get_clock();
  XBT_INFO("Sleep for 10 seconds");
  MSG_process_sleep(10);

  XBT_INFO("Done sleeping %.2fs; peak speed: %.0E flop/s; number of flops computed so far: %.0E (nothing should have "
           "changed)",
           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));

  // Run a task
  start            = MSG_get_clock();
  msg_task_t task1 = MSG_task_create("t1", 100E6, 0, NULL);
  XBT_INFO("Run a task of %.0E flops", MSG_task_get_flops_amount(task1));
  MSG_task_execute(task1);
  MSG_task_destroy(task1);

  XBT_INFO("Done working on my task; this took %.2fs; current peak speed: %.0E flop/s; number of flops computed so "
           "far: %.0E",
           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));

  // ========= Change power peak =========
  int pstate = 2;
  sg_host_set_pstate(host, pstate);
  XBT_INFO("========= Requesting pstate %d (speed should be of %.0E flop/s and is of %.0E flop/s)", pstate,
           MSG_host_get_power_peak_at(host, pstate), MSG_host_get_speed(host));

  // Run a second task
  start = MSG_get_clock();
  task1 = MSG_task_create("t2", 100E6, 0, NULL);
  XBT_INFO("Run a task of %.0E flops", MSG_task_get_flops_amount(task1));
  MSG_task_execute(task1);
  MSG_task_destroy(task1);
  XBT_INFO("Done working on my task; this took %.2fs; current peak speed: %.0E flop/s; number of flops computed so "
           "far: %.0E",
           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));

  start = MSG_get_clock();
  XBT_INFO("========= Requesting a reset of the computation counter");
  sg_host_load_reset(host);
  XBT_INFO("Sleep for 4 seconds");
  MSG_process_sleep(4);
  XBT_INFO("Done sleeping %.2f s; peak speed: %.0E flop/s; number of flops computed so far: %.0E",
           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));

  // =========== Turn the other host off ==========
  XBT_INFO("Turning MyHost2 off, and sleeping another 10 seconds. MyHost2 computed %.0f flops so far.",
           MSG_host_get_computed_flops(MSG_host_by_name("MyHost2")));
  MSG_host_off(MSG_host_by_name("MyHost2"));
  start = MSG_get_clock();
  MSG_process_sleep(10);
  XBT_INFO("Done sleeping %.2f s; peak speed: %.0E flop/s; number of flops computed so far: %.0E",
           MSG_get_clock() - start, MSG_host_get_speed(host), sg_host_get_computed_flops(host));
  return 0;
}

int server(int argc, char *argv[])
{
  msg_task_t task1 = NULL;
  msg_task_t task2 = NULL;
  long val1, val2;

  MSG_task_receive(&task1, "mymailbox");
  val1 = (long) MSG_task_get_data(task1);
  MSG_task_destroy(task1);
  task1 = NULL;
  XBT_INFO("Received %lu", val1);

  MSG_task_receive(&task2, "mymailbox");
  val2 = (long) MSG_task_get_data(task2);
  MSG_task_destroy(task2);
  task2 = NULL;
  XBT_INFO("Received %lu", val2);

  MC_assert(min(val1, val2) == 1);

  MSG_task_receive(&task1, "mymailbox");
  val1 = (long) MSG_task_get_data(task1);
  MSG_task_destroy(task1);
  XBT_INFO("Received %lu", val1);

  MSG_task_receive(&task2, "mymailbox");
  val2 = (long) MSG_task_get_data(task2);
  MSG_task_destroy(task2);
  XBT_INFO("Received %lu", val2);

  XBT_INFO("OK");
  return 0;
}

/** Receiver function  */
int slave(int argc, char *argv[])
{
  m_task_t task = NULL;
  int res;
  int id = -1;

  xbt_assert1(sscanf(argv[1],"%d", &id),
	 "Invalid argument %s\n",argv[1]);

  MSG_process_sleep(1); /* Make sure the master is done creating the mailboxes */
   
  while(1) {
    res = MSG_mailbox_get_task_ext(mb[id], &(task), NULL, -1);
    xbt_assert0(res == MSG_OK, "MSG_task_get failed");

    INFO1("Received \"%s\"", MSG_task_get_name(task));
    if (!strcmp(MSG_task_get_name(task),"finalize")) {
	MSG_task_destroy(task);
	break;
    }
     
    INFO1("Processing \"%s\"", MSG_task_get_name(task));
    MSG_task_execute(task);
    INFO1("\"%s\" done", MSG_task_get_name(task));
    MSG_task_destroy(task);
    task = NULL;
  }
  INFO0("I'm done. See you!");
  return 0;
} /* end_of_slave */

int job_requester(int argc, char* argv[]){
	/**
	   @type simgrid process (run on all tiers)
		Every @timeout checks amount of free (non running) cores.
		If this amount is greater than some N then it sends a job request
		 to scheduler to get new batch of jobs. 

         Simgrid process parameters:
         --------------------------
         None		 
	*/
    std::string host_name = MSG_host_get_name(MSG_host_self());
    std::string CERN = "CERN";
    msg_task_t task = NULL;
    double timeout = 1000;
    long freeCoreAmount;
    int fullCoreAmount = MSG_host_get_core_number(MSG_host_self());
    MSG_process_sleep(0.01);

    while (1){
        freeCoreAmount = fullCoreAmount - xbt_str_parse_int(MSG_host_get_property_value(MSG_host_self(), "activeCore"), "error") -
                xbt_str_parse_int(MSG_host_get_property_value(MSG_host_self(), "corruptedCore"), "error");

        MSG_sem_acquire(sem_requester);
        if (GLOBAL_QUEUE->empty()){
            MSG_sem_release(sem_requester);
            break;
        }

        if (freeCoreAmount > 0){
            JobBatchRequest* jobRequest = new JobBatchRequest;
            jobRequest->coreAmount = freeCoreAmount;

            task = MSG_task_create("request", 0.0, MESSAGES_SIZE, jobRequest);

            plusLinkCounter(host_name, CERN);
            msg_error_t err = MSG_task_send(task, "scheduler");

            switch(err){
                case MSG_OK:
                    minusLinkCounter(host_name, CERN);
                    break;
                case MSG_TRANSFER_FAILURE:
                    minusLinkCounter(host_name, CERN);
                    MSG_task_destroy(task);
                    task = NULL;
                    break;
                case MSG_HOST_FAILURE:
                    MSG_task_destroy(task);
                    task = NULL;
                    break;
            }
        }else MSG_sem_release(sem_requester);

        MSG_process_sleep(timeout);
    }
    return 0;
}