C++ PROCESS_YIELD_UNTIL函数代码示例

PROCESS_THREAD(onboard_flash_test_process, ev, data)
{
	PROCESS_BEGIN();

	etimer_set(&et, CLOCK_SECOND * 5);
	PROCESS_YIELD_UNTIL(etimer_expired(&et));

	while(RUNNING) {
		printf("Starting test...\n");
		int ret = coffee_file_test();
		printf("Test finished with %d\n", ret);

		printf("Result: ");
		if( ret == 0 ) {
			printf("SUCCESS\n");
			RUNNING = 0;
		} else {
			printf("FAILURE\n");

			printf("Formatting Flash...");
			fflush(stdout);
			cfs_coffee_format();
			printf("OK\n");
		}

		etimer_set(&et, CLOCK_SECOND * 60);
		PROCESS_YIELD_UNTIL(etimer_expired(&et));
	}

	PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(rd_client_process, ev, data)
{
  static struct etimer et;
  static coap_packet_t request[1];      /* This way the packet can be treated as pointer as usual. */
  static char query_buffer[200];
  static char rd_client_name[64];

  PROCESS_BEGIN();
  PROCESS_PAUSE();
  PRINTF("RD client started\n");
  sprintf(rd_client_name, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
      uip_lladdr.addr[0], uip_lladdr.addr[1], uip_lladdr.addr[2], uip_lladdr.addr[3],
      uip_lladdr.addr[4], uip_lladdr.addr[5], uip_lladdr.addr[6], uip_lladdr.addr[7]);
  while(1) {
    new_address = 0;
    while(!registered) {
      while(uip_is_addr_unspecified(&rd_server_ipaddr)) {
        status = RD_CLIENT_UNCONFIGURED;
        PROCESS_YIELD();
      }
      status = RD_CLIENT_REGISTERING;
      etimer_set(&et, CLOCK_SECOND);
      PROCESS_YIELD_UNTIL(etimer_expired(&et));
      PRINTF("Registering to ");
      PRINT6ADDR(&rd_server_ipaddr);
      PRINTF(" %d with %s\n", rd_server_port, resources_list);
      coap_init_message(request, COAP_TYPE_CON, COAP_POST, 0);
      coap_set_header_uri_path(request, "rd");
      sprintf(query_buffer, "ep=%s&b=U&lt=%d", rd_client_name, RD_CLIENT_LIFETIME);
      coap_set_header_uri_query(request, query_buffer);
      coap_set_payload(request, (uint8_t *) resources_list, resources_list_size);

      COAP_BLOCKING_REQUEST_BLOCK_RESPONSE(coap_default_context, &rd_server_ipaddr, UIP_HTONS(rd_server_port), request, client_registration_request_handler, client_registration_response_handler);
    }
    status = RD_CLIENT_REGISTERED;
    etimer_set(&et, RD_CLIENT_LIFETIME * CLOCK_SECOND / 10 * 9);
    PROCESS_YIELD_UNTIL(etimer_expired(&et) || new_address);
    registered = 0;

    if(!new_address) {
      PRINTF("Update endpoint %s\n", registration_name);
      coap_init_message(request, COAP_TYPE_CON, COAP_PUT, 0);
      coap_set_header_uri_path(request, registration_name);
      sprintf(query_buffer, "b=U&lt=%d", RD_CLIENT_LIFETIME);
      coap_set_header_uri_query(request, query_buffer);

      COAP_BLOCKING_REQUEST(coap_default_context, &rd_server_ipaddr, UIP_HTONS(rd_server_port), request, client_update_response_handler);
    }
  }

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(cc1101_process, ev, data)
{

  PROCESS_POLLHANDLER(pollhandler());

  PROCESS_BEGIN();

#if 0
  while(1) {
    static struct etimer et;
    uint8_t rxbytes, txbytes;
    etimer_set(&et, CLOCK_SECOND * 4);
    PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
    //    cc1101_rx_interrupt();
    burst_read(CC1101_RXBYTES, &rxbytes, 1);
    burst_read(CC1101_TXBYTES, &txbytes, 1);
    printf("state 0x%02x rxbytes 0x%02x txbytes 0x%02x\n",
     state(), rxbytes, txbytes);
    on();
  }
#endif /* 0 */

  PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_EXIT);

  PROCESS_END();
}

/* Process to handle input packets
 * Receive interrupts cause this process to be polled
 * It calls the core MAC layer which calls rf230_read to get the packet
*/
PROCESS_THREAD(nrf24l01_process, ev, data)
{
  PROCESS_BEGIN();
  
  while(1) 
  {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
    
#if RF230_TIMETABLE_PROFILING
    TIMETABLE_TIMESTAMP(rf230_timetable, "poll");
#endif /* RF230_TIMETABLE_PROFILING */
        
    if(receiver_callback != NULL) 
    {
      receiver_callback(&nrf24l01_driver);
	  
#if RF230_TIMETABLE_PROFILING
      TIMETABLE_TIMESTAMP(rf230_timetable, "end");
      timetable_aggregate_compute_detailed(&aggregate_time,
					   &rf230_timetable);
      timetable_clear(&rf230_timetable);
#endif /* RF230_TIMETABLE_PROFILING */
    } 
    else 
    {
      PRINTF("nrf24l01_process not receiving function\n");
      //flushrx();
    }
  }

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(uz2400_process, ev, data)
{
  int len;
  PROCESS_BEGIN();

  PRINTF("uz2400_process: started\n");

  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
//#if UZ2400_TIMETABLE_PROFILING
//    TIMETABLE_TIMESTAMP(uz2400_timetable, "poll");
//#endif /* UZ2400_TIMETABLE_PROFILING */

    PRINTF("uz2400_process: calling receiver callback\n");

    packetbuf_clear();
    packetbuf_set_attr(PACKETBUF_ATTR_TIMESTAMP, last_packet_timestamp);
    
    len = uz2400_read(packetbuf_dataptr(), PACKETBUF_SIZE);
    packetbuf_set_datalen(len);

    NETSTACK_RDC.input();
    /* flushrx(); */
//#if UZ2400_TIMETABLE_PROFILING
//    TIMETABLE_TIMESTAMP(uz2400_timetable, "end");
//    timetable_aggregate_compute_detailed(&aggregate_time,
//                                         &uz2400_timetable);
//    timetable_clear(&uz2400_timetable);
//#endif /* UZ2400_TIMETABLE_PROFILING */
	//EXTI4_ClearBit();
  }

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(cc2420_process, ev, data)
{
  PROCESS_BEGIN();

  PRINTF("cc2420_process: started\n");
  
  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
#if CC2420_TIMETABLE_PROFILING
    TIMETABLE_TIMESTAMP(cc2420_timetable, "poll");
#endif /* CC2420_TIMETABLE_PROFILING */
        
    if(receiver_callback != NULL) {
      PRINTF("cc2420_process: calling receiver callback\n");
      receiver_callback(&cc2420_driver);
#if CC2420_TIMETABLE_PROFILING
      TIMETABLE_TIMESTAMP(cc2420_timetable, "end");
      timetable_aggregate_compute_detailed(&aggregate_time,
					   &cc2420_timetable);
      timetable_clear(&cc2420_timetable);
#endif /* CC2420_TIMETABLE_PROFILING */
    } else {
      PRINTF("cc2420_process not receiving function\n");
      flushrx();
    }
  }

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(etimer_test_process, ev, data)
{
  PROCESS_BEGIN();

  TEST_BEGIN("etimer-test");

  static int idx;

  for(idx = 0; idx < TEST_CONF_ETIMERS; idx++) {
    etimer_set(&et[idx], times[idx]);
  }

  idx = 0;
  while(running) {

    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_TIMER);

    printf("event arrived from\n", data);
    // check if events arrive in the same order we placed them
    TEST_EQUALS((struct etimer*) data - &et[0], evt_orders[idx++]);

    if (idx == TEST_CONF_ETIMERS) {
      TESTS_DONE();
    }

  }

  TEST_END();


  PROCESS_END();
}

PROCESS_THREAD(cloudcomm_test, ev, data) {
	// lets us know that we can keep transmitting
	PROCESS_BEGIN();
	uint8_t i = 0;
	cloudcomm_set_packet_length(sizeof(opo_data_t));
	simplestore_clear_flash_chip();

	m.dest = &murl[0];
	m.dest_len = 34;
	cloudcomm_set_metainfo(&m);

	cctestvtimer = get_vtimer(vcallback);
	schedule_vtimer(&cctestvtimer, VTIMER_SECOND * 10);
	PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
	request_cloudcomm_data(CLOUDCOMM_REQ_TIME); 
	leds_on(LEDS_GREEN);
	for(i=0;i<24;i++) {
		test[i].version_num = 0xaabb;
		test[i].rx_id = i;
		test[i].tx_id = 0x02;
		test[i].range_dt = 0xbbccddee;
		test[i].ul_dt = 0x00;
		test[i].m_unixtime = 0;
		test[i].m_time_confidence = 1;
		test[i].failed_rx_count = 2;
		test[i].tx_unixtime = 3;
		test[i].tx_time_confidence = 4;
		test[i].ul_rf_dt = 5;
		cloudcomm_store(&test[i]);
	}

	cloudcomm_on(woot, 30000);

	PROCESS_END();
}

PROCESS_THREAD(ctimer_process, ev, data)
{
  struct ctimer *c;
  PROCESS_BEGIN();

  for(c = list_head(ctimer_list); c != NULL; c = c->next) {
    etimer_set(&c->etimer, c->etimer.tmr.interval);
  }
  initialized = 1;

  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_TIMER);
    for(c = list_head(ctimer_list); c != NULL; c = c->next) {
      if(&c->etimer == data) {
	list_remove(ctimer_list, c);
	PROCESS_CONTEXT_BEGIN(c->p);
	if(c->f != NULL) {
	  c->f(c->ptr);
	}
	PROCESS_CONTEXT_END(c->p);
	break;
      }
    }
  }
  PROCESS_END();
}

PROCESS_THREAD(tcp_process, ev, data)
{
  static char incoming[10];
  static struct psock ps;

  PROCESS_BEGIN();

  uart0_set_br(1000000);
  tcp_listen(UIP_HTONS(2020));

  while(1) {
    PROCESS_YIELD();
  }

  {
    /* wait for tcp connection */
    PROCESS_WAIT_EVENT_UNTIL(ev==tcpip_event && uip_connected());

    /* start estimator process and init psock connection handler */
    process_start(&ahrs_process, NULL);
    PSOCK_INIT(&ps,incoming,sizeof(incoming));

    /* loop until connection is closed */
    while (!(uip_aborted() || uip_closed() || uip_timedout())) {
      PROCESS_YIELD_UNTIL(ev==tcpip_event);
      handle_connection(&ps);
    }

    /* stop ahrs process */
    process_exit(&ahrs_process);

  }

  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(rx_data_process, ev, data)
{
  PROCESS_BEGIN();
  
  /* Process is polled whenever data is available from uart isr */
  uint8_t c;

  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
    /* Read RX ringbuffer. ASCII chars Output when LF is seen. 
       If overflowed, strings are skipped */ 
    do {
      if (get_ringbuf(&c) == -1) {
        break;    /* No more rx char's in ringbuffer */
      } else {
        if (rx_buf_index == RX_BUFFER_SIZE) {   /* Skip current content if buffer full */
          rx_buf_index = 0;
        } 
        rx_buf[rx_buf_index++] = c;
        if ((c == '\n')||(c == '\r')) {
          rx_buf[rx_buf_index] = '\0';
          printf("RX on UART1: %s", rx_buf);   
          /* Signal event to coap clients.
             Demo assumes data is consumed before new data comes in */
          event_coap_rx_uart1_handler();     
          rx_buf_index = 0;      
        }
      }
    } while (1);
  }
  PROCESS_END();
}

/*---------------------------------------------------------------------------*/
PROCESS_THREAD(stm32w_radio_process, ev, data)
{
  int len;
  PROCESS_BEGIN();
  PRINTF("stm32w_radio_process: started\r\n");

  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
    PRINTF("stm32w_radio_process: calling receiver callback\r\n");

#if DEBUG > 1
    for(uint8_t c = 1; c <= RCVD_PACKET_LEN; c++) {
      PRINTF("%x", stm32w_rxbuf[c]);
    }
    PRINTF("\r\n");
#endif

    packetbuf_clear();
    len = stm32w_radio_read(packetbuf_dataptr(), PACKETBUF_SIZE);
    if(len > 0) {
      packetbuf_set_datalen(len);
      NETSTACK_RDC.input();
    }
    if(!RXBUFS_EMPTY()) {
      /*
       * Some data packet still in rx buffer (this happens because process_poll
       * doesn't queue requests), so stm32w_radio_process needs to be called
       * again.
       */
      process_poll(&stm32w_radio_process);
    }
  }
  PROCESS_END();
}

/**
 * \brief      Radio RF233 process, infinitely awaits a poll, then checks radio
 *             state and handles received data.
 */
PROCESS_THREAD(rf233_radio_process, ev, data)
{
  int len;
  PROCESS_BEGIN();
  PRINTF("RF233: started.\r\n");

  while(1) {
    PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
    PRINTF("RF233: polled.\r\n");

    if(interrupt_callback_wants_poll) {
      rf233_interrupt_poll();
    }

    packetbuf_clear();
    // packetbuf_set_attr(PACKETBUF_ATTR_TIMESTAMP, last_packet_timestamp);
    len = rf233_read(packetbuf_dataptr(), PACKETBUF_SIZE);
    if(len > 0) {
      packetbuf_set_datalen(len);
      NETSTACK_RDC.input();
    } else {
      PRINTF("RF233: error while reading: %d\r\n", len);
    }
  }
  PROCESS_END();
}

PROCESS_THREAD(sync_master, ev, data)
{
  static int i=0;
  static struct uip_udp_conn *udp;

  PROCESS_BEGIN();
    
  udp = udp_new(NULL, UIP_HTONS(10000), NULL);
  uip_udp_bind(udp, UIP_HTONS(10000));
  uart0_init(1000000);

  while(1)
  {
    PROCESS_YIELD_UNTIL(ev == tcpip_event);
    int i;
    for (i = 0; i < 16; i++)
      uart0_writeb(UDP_HDR->srcipaddr.u8[i]);
    for (i = 0; i < uip_datalen(); i++)
    {
      uart0_writeb(((uint8_t*)uip_appdata)[i]);
    }
  }

  PROCESS_END();
}

/* The main TSCH process */
PROCESS_THREAD(tsch_process, ev, data)
{
  static struct pt scan_pt;

  PROCESS_BEGIN();

  while(1) {

    while(!tsch_is_associated) {
      if(tsch_is_coordinator) {
        /* We are coordinator, start operating now */
        tsch_start_coordinator();
      } else {
        /* Start scanning, will attempt to join when receiving an EB */
        PROCESS_PT_SPAWN(&scan_pt, tsch_scan(&scan_pt));
      }
    }

    /* We are part of a TSCH network, start slot operation */
    tsch_slot_operation_start();

    /* Yield our main process. Slot operation will re-schedule itself
     * as long as we are associated */
    PROCESS_YIELD_UNTIL(!tsch_is_associated);

    /* Will need to re-synchronize */
    tsch_reset();
  }

  PROCESS_END();
}