void SkaarhojSerialClient::runLoop(uint16_t delayTime) {
unsigned long enterTime = millis();
do {
_runSubLoop();
if (_HardSerial.available()) {
_readFromClient();
}
// Requesting status of the device:
if (_statusRequestInterval>0 && !_pendingAnswer && hasTimedOut(_lastStatusRequest,_statusRequestInterval)) {
if (_serialOutput>1) Serial.println(F("Pulling status."));
_lastStatusRequest = millis();
_sendStatus();
}
// Send a ping / reconnect:
if (_ackMsgInterval>0 && !_pendingAnswer && hasTimedOut(_lastIncomingMsg,_ackMsgInterval)) {
if (_serialOutput>1) Serial.println(F("Sending Ping."));
_lastReconnectAttempt = millis();
_pendingAnswer = true;
_sendPing();
}
// Trying to connect, if not:
if (!isConnected()) {
if (_reconnectInterval>0 && hasTimedOut(_lastReconnectAttempt,_reconnectInterval)) {
connect();
}
} else {
if (_ackMsgInterval>0 && hasTimedOut(_lastIncomingMsg,_ackMsgInterval+2000)) {
if (_serialOutput) Serial.println(F("Disconnected."));
_isConnected = false;
}
}
} while (delayTime>0 && !hasTimedOut(enterTime,delayTime));
}
bool gatewayTransportSend(MyMessage &message)
{
bool ret = true;
char *_ethernetMsg = protocolFormat(message);
setIndication(INDICATION_GW_TX);
_w5100_spi_en(true);
#if defined(MY_CONTROLLER_IP_ADDRESS)
#if defined(MY_USE_UDP)
_ethernetServer.beginPacket(_ethernetControllerIP, MY_PORT);
_ethernetServer.write(_ethernetMsg, strlen(_ethernetMsg));
// returns 1 if the packet was sent successfully
ret = _ethernetServer.endPacket();
#else
EthernetClient client;
#if defined(MY_CONTROLLER_URL_ADDRESS)
if (client.connected() || client.connect(MY_CONTROLLER_URL_ADDRESS, MY_PORT)) {
#else
if (client.connected() || client.connect(_ethernetControllerIP, MY_PORT)) {
#endif
client.write(_ethernetMsg, strlen(_ethernetMsg));
}
else {
// connecting to the server failed!
ret = false;
}
#endif
#else
// Send message to connected clients
#if defined(MY_GATEWAY_ESP8266)
for (uint8_t i = 0; i < ARRAY_SIZE(clients); i++)
{
if (clients[i] && clients[i].connected())
{
clients[i].write((uint8_t*)_ethernetMsg, strlen(_ethernetMsg));
}
}
#else
_ethernetServer.write(_ethernetMsg);
#endif
#endif
_w5100_spi_en(false);
return ret;
}
#if defined(MY_GATEWAY_ESP8266)
bool _readFromClient(uint8_t i) {
while (clients[i].connected() && clients[i].available()) {
char inChar = clients[i].read();
if (inputString[i].idx < MY_GATEWAY_MAX_RECEIVE_LENGTH - 1) {
// if newline then command is complete
if (inChar == '\n' || inChar == '\r') {
// Add string terminator and prepare for the next message
inputString[i].string[inputString[i].idx] = 0;
debug(PSTR("Client %d: %s\n"), i, inputString[i].string);
inputString[i].idx = 0;
if (protocolParse(_ethernetMsg, inputString[i].string)) {
return true;
}
} else {
// add it to the inputString:
inputString[i].string[inputString[i].idx++] = inChar;
}
} else {
// Incoming message too long. Throw away
debug(PSTR("Client %d: Message too long\n"), i);
inputString[i].idx = 0;
// Finished with this client's message. Next loop() we'll see if there's more to read.
break;
}
}
return false;
}
#else
bool _readFromClient() {
while (client.connected() && client.available()) {
char inChar = client.read();
if (inputString.idx < MY_GATEWAY_MAX_RECEIVE_LENGTH - 1) {
// if newline then command is complete
if (inChar == '\n' || inChar == '\r') {
// Add string terminator and prepare for the next message
inputString.string[inputString.idx] = 0;
debug(PSTR("Eth: %s\n"), inputString.string);
inputString.idx = 0;
if (protocolParse(_ethernetMsg, inputString.string)) {
return true;
}
} else {
// add it to the inputString:
inputString.string[inputString.idx++] = inChar;
}
} else {
// Incoming message too long. Throw away
debug(PSTR("Eth: Message too long\n"));
inputString.idx = 0;
// Finished with this client's message. Next loop() we'll see if there's more to read.
break;
}
}
return false;
}
#endif
bool gatewayTransportAvailable()
{
_w5100_spi_en(true);
#if !defined(MY_IP_ADDRESS) && defined(MY_GATEWAY_W5100)
// renew IP address using DHCP
gatewayTransportRenewIP();
#endif
#ifdef MY_USE_UDP
int packet_size = _ethernetServer.parsePacket();
if (packet_size) {
//debug(PSTR("UDP packet available. Size:%d\n"), packet_size);
setIndication(INDICATION_GW_RX);
#if defined(MY_GATEWAY_ESP8266)
_ethernetServer.read(inputString[0].string, MY_GATEWAY_MAX_RECEIVE_LENGTH);
inputString[0].string[packet_size] = 0;
debug(PSTR("UDP packet received: %s\n"), inputString[0].string);
return protocolParse(_ethernetMsg, inputString[0].string);
#else
_ethernetServer.read(inputString.string, MY_GATEWAY_MAX_RECEIVE_LENGTH);
inputString.string[packet_size] = 0;
debug(PSTR("UDP packet received: %s\n"), inputString.string);
_w5100_spi_en(false);
return protocolParse(_ethernetMsg, inputString.string);
#endif
}
#else
#if defined(MY_GATEWAY_ESP8266)
// ESP8266: Go over list of clients and stop any that are no longer connected.
// If the server has a new client connection it will be assigned to a free slot.
bool allSlotsOccupied = true;
for (uint8_t i = 0; i < ARRAY_SIZE(clients); i++) {
if (!clients[i].connected()) {
if (clientsConnected[i]) {
debug(PSTR("Client %d disconnected\n"), i);
clients[i].stop();
}
//check if there are any new clients
if (_ethernetServer.hasClient()) {
clients[i] = _ethernetServer.available();
inputString[i].idx = 0;
debug(PSTR("Client %d connected\n"), i);
gatewayTransportSend(buildGw(_msg, I_GATEWAY_READY).set("Gateway startup complete."));
if (presentation)
presentation();
}
}
bool connected = clients[i].connected();
clientsConnected[i] = connected;
allSlotsOccupied &= connected;
}
if (allSlotsOccupied && _ethernetServer.hasClient()) {
//no free/disconnected spot so reject
debug(PSTR("No free slot available\n"));
EthernetClient c = _ethernetServer.available();
c.stop();
}
// Loop over clients connect and read available data
for (uint8_t i = 0; i < ARRAY_SIZE(clients); i++) {
if (_readFromClient(i)) {
setIndication(INDICATION_GW_RX);
_w5100_spi_en(false);
return true;
}
}
#else
// W5100/ENC module does not have hasClient-method. We can only serve one client at the time.
EthernetClient newclient = _ethernetServer.available();
// if a new client connects make sure to dispose any previous existing sockets
if (newclient) {
if (client != newclient) {
client.stop();
client = newclient;
debug(PSTR("Eth: connect\n"));
_w5100_spi_en(false);
gatewayTransportSend(buildGw(_msg, I_GATEWAY_READY).set("Gateway startup complete."));
_w5100_spi_en(true);
if (presentation)
presentation();
}
}
if (client) {
if (!client.connected()) {
debug(PSTR("Eth: disconnect\n"));
client.stop();
} else {
if (_readFromClient()) {
setIndication(INDICATION_GW_RX);
_w5100_spi_en(false);
return true;
}
}
}
#endif
#endif
_w5100_spi_en(false);
return false;
}