コード例 #1
0
/*----------------------------------------------------------------------------
 *  Task 2: RTX Kernel starts this task with os_tsk_create (consumer_task, 0)
 *---------------------------------------------------------------------------*/
__task void consumer_task (void) {

	OS_TID consumer_tskid;                          /* assigned identification for consumer */
	
	consumer_tskid = os_tsk_self();									/* get it's own task ID */
	
	T_NUM *random_num_rx;

	while( msg_counter_rec < N )
	{
		os_mbx_wait (MsgBox, (void **)&random_num_rx, 0xffff); /* wait for the message    */
		
		os_mut_wait(g_mut_uart, 0xFFFF);
		printf("[consumer_task [pid:(%d)] ]: Received %u\n", consumer_tskid, random_num_rx->number);
		msg_counter_rec += 1;
		os_mut_release(g_mut_uart);
		
		if( _free_box (mpool, random_num_rx) )           /* free memory allocated for message  */
		{
			os_mut_wait(g_mut_uart, 0xFFFF);
			printf("_free_box failed because memory couldn't be freed\n");
			os_mut_release(g_mut_uart);
			exit(1);
			
		}
	}


	//Get Time C 
	time_c = os_time_get();
	
	os_mut_wait(g_mut_uart, 0xFFFF);
	printf("Time to initialize system: %0.6f\n", (float)(((float)time_b - time_a)/1000000) );
	printf("Time to transmit data: %0.6f\n", (float)(((float)time_c - time_b)/1000000) );
	os_mut_release(g_mut_uart);

	// os_dly_wait(10);
	os_tsk_delete_self ();              /* We are done here, delete this task  */
}
コード例 #2
0
ファイル: rtx.hpp プロジェクト: summivox/stm32f1
    void deallocate(T* p){
		__disable_irq();
        assert(!_free_box(pool, p)); //return 1 => error
        ++remaining;
		__enable_irq();
    }
コード例 #3
0
ファイル: rt_Task.c プロジェクト: lizhiok/FPInterro
OS_RESULT os_tsk_delete (OS_TID task_id) {
  /* Terminate the task identified with "task_id". */
  P_TCB  task_context;
  P_TCB  p_TCB;
  P_MUCB p_MCB, p_MCB0;

  tsk_lock();
  if (task_id == 0 || task_id == os_runtask->task_id) {
    /* Terminate itself. */
    os_runtask->state = INACTIVE;
    os_stk_check (0);
    p_MCB = os_runtask->p_mlnk;
    while (p_MCB) {
      /* Release mutexes owned by this task */
      if (p_MCB->p_lnk) {
        /* A task is waiting for mutex. */
        p_TCB = os_get_first ((P_XCB)p_MCB);
        p_TCB->ret_val = OS_R_MUT;
        os_rmv_dly (p_TCB);
        p_TCB->state = READY;
        os_put_prio (&os_rdy, p_TCB);
        /* A waiting task becomes the owner of this mutex. */
        p_MCB0 = p_MCB;
        p_MCB->level  = 1;
        p_MCB->owner  = p_TCB;
        p_MCB->p_mlnk = p_TCB->p_mlnk;
        p_TCB->p_mlnk = p_MCB; 
        p_MCB = p_MCB0->p_mlnk;
      }
      else {
        p_MCB = p_MCB->p_mlnk;
      }
    }
    os_active_TCB[os_runtask->task_id-1] = NULL;
    _free_box (mp_stk, os_runtask->stack);
    os_runtask->stack = NULL;
    rt_notify (os_runtask->ptask, (__FALSE << 8) | os_runtask->task_id);
    _free_box (mp_tcb, os_runtask);
    os_runtask = NULL;
    os_dispatch (NULL);
    /* The program should never come to this point. */
  }
  else {
    /* Find the task in the "os_active_TCB" array. */
    if (task_id > os_maxtaskrun || os_active_TCB[task_id-1] == NULL) {
      /* Task with "task_id" not found or not started. */
      tsk_unlock ();
      return (OS_R_NOK);
    }
    task_context = os_active_TCB[task_id-1];
    os_rmv_list (task_context);
    os_rmv_dly (task_context);
    p_MCB = task_context->p_mlnk;
    while (p_MCB) {
      /* Release mutexes owned by this task */
      if (p_MCB->p_lnk) {
        /* A task is waiting for mutex. */
        p_TCB = os_get_first ((P_XCB)p_MCB);
        p_TCB->ret_val = OS_R_MUT;
        os_rmv_dly (p_TCB);
        p_TCB->state = READY;
        os_put_prio (&os_rdy, p_TCB);
        /* A waiting task becomes the owner of this mutex. */
        p_MCB0 = p_MCB;
        p_MCB->level  = 1;
        p_MCB->owner  = p_TCB;
        p_MCB->p_mlnk = p_TCB->p_mlnk;
        p_TCB->p_mlnk = p_MCB; 
        p_MCB = p_MCB0->p_mlnk;
      }
      else {
        p_MCB = p_MCB->p_mlnk;
      }
    }
    os_active_TCB[task_id-1] = NULL;
    _free_box (mp_stk, task_context->stack);
    task_context->stack = NULL;
    rt_notify (task_context->ptask, (__FALSE << 8) | task_context->task_id);
    _free_box (mp_tcb, task_context);
    tsk_unlock ();
    if (os_rdy_prio() > os_runtask->prio) {
      /* Ready task has higher priority than running task. */
      os_runtask->state = READY;
      os_put_prio (&os_rdy, os_runtask);
      os_dispatch (NULL);
    }
  }
  return (OS_R_OK);
}