arduino/Adafruit_MQTT_Library
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smarter packet reading makes for faster publish-handling! also, retries subscriptions 3 times

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This commit is contained in:
ladyada
2016-05-18 15:23:41 -04:00
parent 7068ef5afe
commit ab1a0938b9
5 changed files with 33 additions and 52 deletions
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15
Adafruit_MQTT_Client.cpp
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@ -48,8 +48,7 @@ bool Adafruit_MQTT_Client::connected() {
}
uint16_t Adafruit_MQTT_Client::readPacket(uint8_t *buffer, uint8_t maxlen,
int16_t timeout,
bool checkForValidPubPacket) {
int16_t timeout) {
/* Read data until either the connection is closed, or the idle timeout is reached. */
uint16_t len = 0;
int16_t t = timeout;
@ -64,20 +63,10 @@ uint16_t Adafruit_MQTT_Client::readPacket(uint8_t *buffer, uint8_t maxlen,
//DEBUG_PRINTLN((uint8_t)c, HEX);
len++;
if (len == maxlen) { // we read all we want, bail
DEBUG_PRINT(F("Read packet:\t"));
DEBUG_PRINT(F("Read data:\t"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
}
// special case where we just one one publication packet at a time
if (checkForValidPubPacket) {
if ((buffer[0] == (MQTT_CTRL_PUBLISH << 4)) && (buffer[1] == len-2)) {
// oooh a valid publish packet!
DEBUG_PRINT(F("Read PUBLISH packet:\t"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
}
}
}
timeout -= MQTT_CLIENT_READINTERVAL_MS;
delay(MQTT_CLIENT_READINTERVAL_MS);