C++ (Cpp) OSQueueClean Examples

Example #1

File: UART.c Project: thiagohd/BRTOSicslowpan

unsigned long USART0IntHandler(void *pvCBData,
        unsigned long ulEvent,
        unsigned long ulMsgParam,
        void *pvMsgData)
{
	char receive_byte;

	if (Contiki_Sem != NULL){
		if ((ulEvent & UART_EVENT_RX) == UART_EVENT_RX)
		{
			receive_byte = xHWREGB(UART0_BASE + UART_012_D);

			if (slip_input_byte(receive_byte) == 1) OSSemPost(Contiki_Sem);

			buffer_rcvd[buffer_rcvd_i++]=receive_byte;

	#if 0
			if (OSQueuePost(Serial0, receive_byte) == BUFFER_UNDERRUN)
			{
				// Problema: Estouro de buffer
				OSQueueClean(Serial0);
			}
	#endif
		}

		if ((ulEvent & UART_EVENT_TC) == UART_EVENT_TC)
		{
			if ((xHWREGB(UART0_BASE + UART_012_C2) & UART_EVENT_TC) == UART_EVENT_TC)
			{
				UARTIntDisable(UART0_BASE, UART_INT_TC);
				(void)OSSemPost(SerialTX0);
			}
		}

		// ************************
		// Interrupt Exit
		// ************************
		OS_INT_EXIT_EXT();
		// ************************
	}else{
		if ((ulEvent & UART_EVENT_RX) == UART_EVENT_RX)
		{
			receive_byte = xHWREGB(UART0_BASE + UART_012_D);
		}

		if ((ulEvent & UART_EVENT_TC) == UART_EVENT_TC)
		{
			if ((xHWREGB(UART0_BASE + UART_012_C2) & UART_EVENT_TC) == UART_EVENT_TC)
			{
				UARTIntDisable(UART0_BASE, UART_INT_TC);
			}
		}
	}
}

Example #2

File: tarefas.c Project: monkaco/BRTOS

void Keyboard_Handler(void)
{
   // task setup
   INT8U  key      = NO_KEY;
   INT32U read = 0;

   ButtonsInit();

   if (OSSemCreate(0,&sKeyboard) != ALLOC_EVENT_OK)
   {
     // Oh Oh
     // Não deveria entrar aqui !!!
     while(1){};
   };

   if (OSQueueCreate(64, &qKeyboard) != ALLOC_EVENT_OK)
   {
     // Oh Oh
     // Não deveria entrar aqui !!!
     while(1){};
   };

   // task main loop
   for (;;)
   {
      // Wait for a keyboard interrupt
      OSSemPend (sKeyboard,0);
      DelayTask(50);

      read = GPIOPinRead(BUTTONS_GPIO_BASE, ALL_BUTTONS);

      // Find out which key was pressed
      key = (INT8U)read;

      // Copy the key to the keyboard buffer
      if(key != NO_KEY)
      {
    	if (OSQueuePost(qKeyboard, key) == BUFFER_UNDERRUN)
        {
          // Buffer overflow
          OSQueueClean(qKeyboard);
        }
      }

      key = NO_KEY;
      DelayTask(200);
      // Enable interrupt to the next key detection
      GPIOIntEnable(BUTTONS_GPIO_BASE, ALL_BUTTONS);
   }
}

Example #3

File: UART.c Project: brtos/brtos-contiki

void uart2_rx(void)
{

	// ************************
    // Interrupt Entry
    // ************************
#if __GNUC__
	OS_SAVE_ISR();
#endif

	OS_INT_ENTER();

	// Tratamento da interrupção
	(void) SCI2S1; /* Leitura do registrador SCIxS1 para analisar o estado da transmissão */
	(void) SCI2C3; /* Leitura do registrador SCIxC3 para limpar o bit de paridade */
	receive_byte2 = SCI2D; /* Leitura dos dados recebidos */

#if (NESTING_INT == 1)
	OS_ENABLE_NESTING();
#endif  

	if (OSQueuePost(Serial2, receive_byte2) == BUFFER_UNDERRUN)
	{
		// Problema: Estouro de buffer
		OSQueueClean(Serial2);
	}

	// ************************
	// Interrupt Exit
	// ************************
	OS_INT_EXIT();
	// ************************
#if __GNUC__
	OS_RESTORE_ISR();
#endif
}