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Adafruit_MQTT_Library
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Merge pull request #177 from adafruit/actionci 

Moved to actions, no doxygen
This commit is contained in:
dherrada 2020-06-26 10:40:14 -04:00 committed by GitHub
parent 3693eb8800 148cfb3591
commit 8db0c2787d
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 414 additions and 359 deletions
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26
.github/workflows/githubci.yml vendored Normal file
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@ -0,0 +1,26 @@
name: Arduino Library CI
on: [pull_request, push, repository_dispatch]
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/setup-python@v1
with:
python-version: '3.x'
- uses: actions/checkout@v2
- uses: actions/checkout@v2
with:
repository: adafruit/ci-arduino
path: ci
- name: pre-install
run: bash ci/actions_install.sh
- name: test platforms
run: python3 ci/build_platform.py esp8266 zero
- name: clang
run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r .

14
.travis.yml
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@ -1,14 +0,0 @@
language: c
sudo: false
before_install:
- source <(curl -SLs https://raw.githubusercontent.com/adafruit/travis-ci-arduino/master/install.sh)
install:
- arduino --install-library "Adafruit SleepyDog Library","Adafruit FONA Library"
script:
- build_platform esp8266
- arduino --install-library "WiFi101"
- build_platform zero
notifications:
email:
on_success: change
on_failure: change

391
Adafruit_MQTT.cpp
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@ -9,8 +9,8 @@
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ -21,8 +21,10 @@
// SOFTWARE.
#include "Adafruit_MQTT.h"
#if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_MKR1000) || defined(ARDUINO_ARCH_SAMD)
static char *dtostrf (double val, signed char width, unsigned char prec, char *sout) {
#if defined(ARDUINO_SAMD_ZERO) || defined(ARDUINO_SAMD_MKR1000) || \
defined(ARDUINO_ARCH_SAMD)
static char *dtostrf(double val, signed char width, unsigned char prec,
char *sout) {
char fmt[20];
sprintf(fmt, "%%%d.%df", width, prec);
sprintf(sout, fmt, val);
@ -31,23 +33,22 @@ static char *dtostrf (double val, signed char width, unsigned char prec, char *s
#endif
#if defined(ESP8266)
int strncasecmp(const char * str1, const char * str2, int len) {
int d = 0;
while(len--) {
int c1 = tolower(*str1++);
int c2 = tolower(*str2++);
if(((d = c1 - c2) != 0) || (c2 == '\0')) {
return d;
}
int strncasecmp(const char *str1, const char *str2, int len) {
int d = 0;
while (len--) {
int c1 = tolower(*str1++);
int c2 = tolower(*str2++);
if (((d = c1 - c2) != 0) || (c2 == '\0')) {
return d;
}
return 0;
}
return 0;
}
#endif
void printBuffer(uint8_t *buffer, uint16_t len) {
DEBUG_PRINTER.print('\t');
for (uint16_t i=0; i<len; i++) {
for (uint16_t i = 0; i < len; i++) {
if (isprint(buffer[i]))
DEBUG_PRINTER.write(buffer[i]);
else
@ -55,7 +56,7 @@ void printBuffer(uint8_t *buffer, uint16_t len) {
DEBUG_PRINTER.print(F(" [0x"));
if (buffer[i] < 0x10)
DEBUG_PRINTER.print("0");
DEBUG_PRINTER.print(buffer[i],HEX);
DEBUG_PRINTER.print(buffer[i], HEX);
DEBUG_PRINTER.print("], ");
if (i % 8 == 7) {
DEBUG_PRINTER.print("\n\t");
@ -74,7 +75,7 @@ static uint8_t *stringprint(uint8_t *p, char *s) {
}
*/
static uint8_t *stringprint(uint8_t *p, const char *s, uint16_t maxlen=0) {
static uint8_t *stringprint(uint8_t *p, const char *s, uint16_t maxlen = 0) {
// If maxlen is specified (has a non-zero value) then use it as the maximum
// length of the source string to write to the buffer. Otherwise write
// the entire source string.
@ -87,20 +88,18 @@ static uint8_t *stringprint(uint8_t *p, const char *s, uint16_t maxlen=0) {
Serial.write(pgm_read_byte(s+i));
}
*/
p[0] = len >> 8; p++;
p[0] = len & 0xFF; p++;
p[0] = len >> 8;
p++;
p[0] = len & 0xFF;
p++;
strncpy((char *)p, s, len);
return p+len;
return p + len;
}
// Adafruit_MQTT Definition ////////////////////////////////////////////////////
Adafruit_MQTT::Adafruit_MQTT(const char *server,
uint16_t port,
const char *cid,
const char *user,
const char *pass) {
Adafruit_MQTT::Adafruit_MQTT(const char *server, uint16_t port, const char *cid,
const char *user, const char *pass) {
servername = server;
portnum = port;
clientid = cid;
@ -108,7 +107,7 @@ Adafruit_MQTT::Adafruit_MQTT(const char *server,
password = pass;
// reset subscriptions
for (uint8_t i=0; i<MAXSUBSCRIPTIONS; i++) {
for (uint8_t i = 0; i < MAXSUBSCRIPTIONS; i++) {
subscriptions[i] = 0;
}
@ -118,14 +117,10 @@ Adafruit_MQTT::Adafruit_MQTT(const char *server,
will_retain = 0;
packet_id_counter = 0;
}
Adafruit_MQTT::Adafruit_MQTT(const char *server,
uint16_t port,
const char *user,
const char *pass) {
Adafruit_MQTT::Adafruit_MQTT(const char *server, uint16_t port,
const char *user, const char *pass) {
servername = server;
portnum = port;
clientid = "";
@ -133,7 +128,7 @@ Adafruit_MQTT::Adafruit_MQTT(const char *server,
password = pass;
// reset subscriptions
for (uint8_t i=0; i<MAXSUBSCRIPTIONS; i++) {
for (uint8_t i = 0; i < MAXSUBSCRIPTIONS; i++) {
subscriptions[i] = 0;
}
@ -143,7 +138,6 @@ Adafruit_MQTT::Adafruit_MQTT(const char *server,
will_retain = 0;
packet_id_counter = 0;
}
int8_t Adafruit_MQTT::connect() {
@ -166,66 +160,70 @@ int8_t Adafruit_MQTT::connect() {
return buffer[3];
// Setup subscriptions once connected.
for (uint8_t i=0; i<MAXSUBSCRIPTIONS; i++) {
for (uint8_t i = 0; i < MAXSUBSCRIPTIONS; i++) {
// Ignore subscriptions that aren't defined.
if (subscriptions[i] == 0) continue;
if (subscriptions[i] == 0)
continue;
boolean success = false;
for (uint8_t retry=0; (retry<3) && !success; retry++) { // retry until we get a suback
for (uint8_t retry = 0; (retry < 3) && !success;
retry++) { // retry until we get a suback
// Construct and send subscription packet.
uint8_t len = subscribePacket(buffer, subscriptions[i]->topic, subscriptions[i]->qos);
uint8_t len = subscribePacket(buffer, subscriptions[i]->topic,
subscriptions[i]->qos);
if (!sendPacket(buffer, len))
return -1;
return -1;
if(MQTT_PROTOCOL_LEVEL < 3) // older versions didn't suback
break;
if (MQTT_PROTOCOL_LEVEL < 3) // older versions didn't suback
break;
// Check for SUBACK if using MQTT 3.1.1 or higher
// TODO: The Server is permitted to start sending PUBLISH packets matching the
// Subscription before the Server sends the SUBACK Packet. (will really need to use callbacks - ada)
// TODO: The Server is permitted to start sending PUBLISH packets matching
// the Subscription before the Server sends the SUBACK Packet. (will
// really need to use callbacks - ada)
//Serial.println("\t**looking for suback");
// Serial.println("\t**looking for suback");
if (processPacketsUntil(buffer, MQTT_CTRL_SUBACK, SUBACK_TIMEOUT_MS)) {
success = true;
break;
success = true;
break;
}
}
if (! success) return -2; // failed to sub for some reason
if (!success)
return -2; // failed to sub for some reason
}
return 0;
}
int8_t Adafruit_MQTT::connect(const char *user, const char *pass)
{
int8_t Adafruit_MQTT::connect(const char *user, const char *pass) {
username = user;
password = pass;
return connect();
}
uint16_t Adafruit_MQTT::processPacketsUntil(uint8_t *buffer, uint8_t waitforpackettype, uint16_t timeout) {
uint16_t Adafruit_MQTT::processPacketsUntil(uint8_t *buffer,
uint8_t waitforpackettype,
uint16_t timeout) {
uint16_t len;
while(true) {
while (true) {
len = readFullPacket(buffer, MAXBUFFERSIZE, timeout);
if(len == 0){
if (len == 0) {
break;
}
if ((buffer[0] >> 4) == waitforpackettype)
{
if ((buffer[0] >> 4) == waitforpackettype) {
return len;
}
else
{
} else {
ERROR_PRINTLN(F("Dropped a packet"));
}
}
return 0;
}
uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t maxsize, uint16_t timeout) {
uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t maxsize,
uint16_t timeout) {
// will read a packet and Do The Right Thing with length
uint8_t *pbuff = buffer;
@ -233,9 +231,11 @@ uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t maxsize, uint16
// read the packet type:
rlen = readPacket(pbuff, 1, timeout);
if (rlen != 1) return 0;
if (rlen != 1)
return 0;
DEBUG_PRINT(F("Packet Type:\t")); DEBUG_PRINTBUFFER(pbuff, rlen);
DEBUG_PRINT(F("Packet Type:\t"));
DEBUG_PRINTBUFFER(pbuff, rlen);
pbuff++;
uint32_t value = 0;
@ -244,64 +244,78 @@ uint16_t Adafruit_MQTT::readFullPacket(uint8_t *buffer, uint16_t maxsize, uint16
do {
rlen = readPacket(pbuff, 1, timeout);
if (rlen != 1) return 0;
if (rlen != 1)
return 0;
encodedByte = pbuff[0]; // save the last read val
pbuff++; // get ready for reading the next byte
pbuff++; // get ready for reading the next byte
uint32_t intermediate = encodedByte & 0x7F;
intermediate *= multiplier;
value += intermediate;
multiplier *= 128;
if (multiplier > (128UL*128UL*128UL)) {
if (multiplier > (128UL * 128UL * 128UL)) {
DEBUG_PRINT(F("Malformed packet len\n"));
return 0;
}
} while (encodedByte & 0x80);
DEBUG_PRINT(F("Packet Length:\t")); DEBUG_PRINTLN(value);
if (value > (maxsize - (pbuff-buffer) - 1)) {
DEBUG_PRINTLN(F("Packet too big for buffer"));
rlen = readPacket(pbuff, (maxsize - (pbuff-buffer) - 1), timeout);
DEBUG_PRINT(F("Packet Length:\t"));
DEBUG_PRINTLN(value);
if (value > (maxsize - (pbuff - buffer) - 1)) {
DEBUG_PRINTLN(F("Packet too big for buffer"));
rlen = readPacket(pbuff, (maxsize - (pbuff - buffer) - 1), timeout);
} else {
rlen = readPacket(pbuff, value, timeout);
}
//DEBUG_PRINT(F("Remaining packet:\t")); DEBUG_PRINTBUFFER(pbuff, rlen);
// DEBUG_PRINT(F("Remaining packet:\t")); DEBUG_PRINTBUFFER(pbuff, rlen);
return ((pbuff - buffer)+rlen);
return ((pbuff - buffer) + rlen);
}
const __FlashStringHelper* Adafruit_MQTT::connectErrorString(int8_t code) {
switch (code) {
case 1: return F("The Server does not support the level of the MQTT protocol requested");
case 2: return F("The Client identifier is correct UTF-8 but not allowed by the Server");
case 3: return F("The MQTT service is unavailable");
case 4: return F("The data in the user name or password is malformed");
case 5: return F("Not authorized to connect");
case 6: return F("Exceeded reconnect rate limit. Please try again later.");
case 7: return F("You have been banned from connecting. Please contact the MQTT server administrator for more details.");
case -1: return F("Connection failed");
case -2: return F("Failed to subscribe");
default: return F("Unknown error");
}
const __FlashStringHelper *Adafruit_MQTT::connectErrorString(int8_t code) {
switch (code) {
case 1:
return F(
"The Server does not support the level of the MQTT protocol requested");
case 2:
return F(
"The Client identifier is correct UTF-8 but not allowed by the Server");
case 3:
return F("The MQTT service is unavailable");
case 4:
return F("The data in the user name or password is malformed");
case 5:
return F("Not authorized to connect");
case 6:
return F("Exceeded reconnect rate limit. Please try again later.");
case 7:
return F("You have been banned from connecting. Please contact the MQTT "
"server administrator for more details.");
case -1:
return F("Connection failed");
case -2:
return F("Failed to subscribe");
default:
return F("Unknown error");
}
}
bool Adafruit_MQTT::disconnect() {
// Construct and send disconnect packet.
uint8_t len = disconnectPacket(buffer);
if (! sendPacket(buffer, len))
if (!sendPacket(buffer, len))
DEBUG_PRINTLN(F("Unable to send disconnect packet"));
return disconnectServer();
}
bool Adafruit_MQTT::publish(const char *topic, const char *data, uint8_t qos) {
return publish(topic, (uint8_t*)(data), strlen(data), qos);
return publish(topic, (uint8_t *)(data), strlen(data), qos);
}
bool Adafruit_MQTT::publish(const char *topic, uint8_t *data, uint16_t bLen, uint8_t qos) {
bool Adafruit_MQTT::publish(const char *topic, uint8_t *data, uint16_t bLen,
uint8_t qos) {
// Construct and send publish packet.
uint16_t len = publishPacket(buffer, topic, data, bLen, qos);
if (!sendPacket(buffer, len))
@ -320,7 +334,8 @@ bool Adafruit_MQTT::publish(const char *topic, uint8_t *data, uint16_t bLen, uin
packnum <<= 8;
packnum |= buffer[3];
// we increment the packet_id_counter right after publishing so inc here too to match
// we increment the packet_id_counter right after publishing so inc here too
// to match
packnum++;
if (packnum != packet_id_counter)
return false;
@ -329,7 +344,8 @@ bool Adafruit_MQTT::publish(const char *topic, uint8_t *data, uint16_t bLen, uin
return true;
}
bool Adafruit_MQTT::will(const char *topic, const char *payload, uint8_t qos, uint8_t retain) {
bool Adafruit_MQTT::will(const char *topic, const char *payload, uint8_t qos,
uint8_t retain) {
if (connected()) {
DEBUG_PRINT(F("Will defined after connect"));
@ -342,22 +358,22 @@ bool Adafruit_MQTT::will(const char *topic, const char *payload, uint8_t qos, ui
will_retain = retain;
return true;
}
bool Adafruit_MQTT::subscribe(Adafruit_MQTT_Subscribe *sub) {
uint8_t i;
// see if we are already subscribed
for (i=0; i<MAXSUBSCRIPTIONS; i++) {
for (i = 0; i < MAXSUBSCRIPTIONS; i++) {
if (subscriptions[i] == sub) {
DEBUG_PRINTLN(F("Already subscribed"));
return true;
}
}
if (i==MAXSUBSCRIPTIONS) { // add to subscriptionlist
for (i=0; i<MAXSUBSCRIPTIONS; i++) {
if (i == MAXSUBSCRIPTIONS) { // add to subscriptionlist
for (i = 0; i < MAXSUBSCRIPTIONS; i++) {
if (subscriptions[i] == 0) {
DEBUG_PRINT(F("Added sub ")); DEBUG_PRINTLN(i);
DEBUG_PRINT(F("Added sub "));
DEBUG_PRINTLN(i);
subscriptions[i] = sub;
return true;
}
@ -372,22 +388,23 @@ bool Adafruit_MQTT::unsubscribe(Adafruit_MQTT_Subscribe *sub) {
uint8_t i;
// see if we are already subscribed
for (i=0; i<MAXSUBSCRIPTIONS; i++) {
for (i = 0; i < MAXSUBSCRIPTIONS; i++) {
if (subscriptions[i] == sub) {
DEBUG_PRINTLN(F("Found matching subscription and attempting to unsubscribe."));
DEBUG_PRINTLN(
F("Found matching subscription and attempting to unsubscribe."));
// Construct and send unsubscribe packet.
uint8_t len = unsubscribePacket(buffer, subscriptions[i]->topic);
// sending unsubscribe failed
if (! sendPacket(buffer, len))
if (!sendPacket(buffer, len))
return false;
// if QoS for this subscription is 1 or 2, we need
// to wait for the unsuback to confirm unsubscription
if(subscriptions[i]->qos > 0 && MQTT_PROTOCOL_LEVEL > 3) {
if (subscriptions[i]->qos > 0 && MQTT_PROTOCOL_LEVEL > 3) {
// wait for UNSUBACK
len = readFullPacket(buffer, MAXBUFFERSIZE, CONNECT_TIMEOUT_MS);
@ -395,19 +412,17 @@ bool Adafruit_MQTT::unsubscribe(Adafruit_MQTT_Subscribe *sub) {
DEBUG_PRINTBUFFER(buffer, len);
if ((len != 5) || (buffer[0] != (MQTT_CTRL_UNSUBACK << 4))) {
return false; // failure to unsubscribe
return false; // failure to unsubscribe
}
}
subscriptions[i] = 0;
return true;
}
}
// subscription not found, so we are unsubscribed
return true;
}
void Adafruit_MQTT::processPackets(int16_t timeout) {
@ -417,30 +432,32 @@ void Adafruit_MQTT::processPackets(int16_t timeout) {
while (elapsed < (uint32_t)timeout) {
Adafruit_MQTT_Subscribe *sub = readSubscription(timeout - elapsed);
if (sub) {
//Serial.println("**** sub packet received");
// Serial.println("**** sub packet received");
if (sub->callback_uint32t != NULL) {
// huh lets do the callback in integer mode
uint32_t data = 0;
data = atoi((char *)sub->lastread);
//Serial.print("*** calling int callback with : "); Serial.println(data);
sub->callback_uint32t(data);
}
else if (sub->callback_double != NULL) {
// huh lets do the callback in doublefloat mode
double data = 0;
data = atof((char *)sub->lastread);
//Serial.print("*** calling double callback with : "); Serial.println(data);
sub->callback_double(data);
}
else if (sub->callback_buffer != NULL) {
// huh lets do the callback in buffer mode
//Serial.print("*** calling buffer callback with : "); Serial.println((char *)sub->lastread);
sub->callback_buffer((char *)sub->lastread, sub->datalen);
}
else if (sub->callback_io != NULL) {
// huh lets do the callback in integer mode
uint32_t data = 0;
data = atoi((char *)sub->lastread);
// Serial.print("*** calling int callback with : ");
// Serial.println(data);
sub->callback_uint32t(data);
} else if (sub->callback_double != NULL) {
// huh lets do the callback in doublefloat mode
double data = 0;
data = atof((char *)sub->lastread);
// Serial.print("*** calling double callback with : ");
// Serial.println(data);
sub->callback_double(data);
} else if (sub->callback_buffer != NULL) {
// huh lets do the callback in buffer mode
// Serial.print("*** calling buffer callback with : ");
// Serial.println((char *)sub->lastread);
sub->callback_buffer((char *)sub->lastread, sub->datalen);
} else if (sub->callback_io != NULL) {
// huh lets do the callback in io mode
//Serial.print("*** calling io instance callback with : "); Serial.println((char *)sub->lastread);
((sub->io_mqtt)->*(sub->callback_io))((char *)sub->lastread, sub->datalen);
// Serial.print("*** calling io instance callback with : ");
// Serial.println((char *)sub->lastread);
((sub->io_mqtt)->*(sub->callback_io))((char *)sub->lastread,
sub->datalen);
}
}
@ -457,21 +474,26 @@ Adafruit_MQTT_Subscribe *Adafruit_MQTT::readSubscription(int16_t timeout) {
uint16_t i, topiclen, datalen;
// Check if data is available to read.
uint16_t len = readFullPacket(buffer, MAXBUFFERSIZE, timeout); // return one full packet
uint16_t len =
readFullPacket(buffer, MAXBUFFERSIZE, timeout); // return one full packet
if (!len)
return NULL; // No data available, just quit.
DEBUG_PRINT("Packet len: "); DEBUG_PRINTLN(len);
return NULL; // No data available, just quit.
DEBUG_PRINT("Packet len: ");
DEBUG_PRINTLN(len);
DEBUG_PRINTBUFFER(buffer, len);
if (len<3) return NULL;
if ((buffer[0] & 0xF0) != (MQTT_CTRL_PUBLISH) << 4) return NULL;
if (len < 3)
return NULL;
if ((buffer[0] & 0xF0) != (MQTT_CTRL_PUBLISH) << 4)
return NULL;
// Parse out length of packet.
topiclen = buffer[3];
DEBUG_PRINT(F("Looking for subscription len ")); DEBUG_PRINTLN(topiclen);
DEBUG_PRINT(F("Looking for subscription len "));
DEBUG_PRINTLN(topiclen);
// Find subscription associated with this packet.
for (i=0; i<MAXSUBSCRIPTIONS; i++) {
for (i = 0; i < MAXSUBSCRIPTIONS; i++) {
if (subscriptions[i]) {
// Skip this subscription if its name length isn't the same as the
// received topic name.
@ -479,22 +501,25 @@ Adafruit_MQTT_Subscribe *Adafruit_MQTT::readSubscription(int16_t timeout) {
continue;
// Stop if the subscription topic matches the received topic. Be careful
// to make comparison case insensitive.
if (strncasecmp((char*)buffer+4, subscriptions[i]->topic, topiclen) == 0) {
DEBUG_PRINT(F("Found sub #")); DEBUG_PRINTLN(i);
if (strncasecmp((char *)buffer + 4, subscriptions[i]->topic, topiclen) ==
0) {
DEBUG_PRINT(F("Found sub #"));
DEBUG_PRINTLN(i);
break;
}
}
}
if (i==MAXSUBSCRIPTIONS) return NULL; // matching sub not found ???
if (i == MAXSUBSCRIPTIONS)
return NULL; // matching sub not found ???
uint8_t packet_id_len = 0;
uint16_t packetid = 0;
// Check if it is QoS 1, TODO: we dont support QoS 2
if ((buffer[0] & 0x6) == 0x2) {
packet_id_len = 2;
packetid = buffer[topiclen+4];
packetid = buffer[topiclen + 4];
packetid <<= 8;
packetid |= buffer[topiclen+5];
packetid |= buffer[topiclen + 5];
}
// zero out the old data
@ -502,17 +527,20 @@ Adafruit_MQTT_Subscribe *Adafruit_MQTT::readSubscription(int16_t timeout) {
datalen = len - topiclen - packet_id_len - 4;
if (datalen > SUBSCRIPTIONDATALEN) {
datalen = SUBSCRIPTIONDATALEN-1; // cut it off
datalen = SUBSCRIPTIONDATALEN - 1; // cut it off
}
// extract out just the data, into the subscription object itself
memmove(subscriptions[i]->lastread, buffer+4+topiclen+packet_id_len, datalen);
memmove(subscriptions[i]->lastread, buffer + 4 + topiclen + packet_id_len,
datalen);
subscriptions[i]->datalen = datalen;
DEBUG_PRINT(F("Data len: ")); DEBUG_PRINTLN(datalen);
DEBUG_PRINT(F("Data: ")); DEBUG_PRINTLN((char *)subscriptions[i]->lastread);
DEBUG_PRINT(F("Data len: "));
DEBUG_PRINTLN(datalen);
DEBUG_PRINT(F("Data: "));
DEBUG_PRINTLN((char *)subscriptions[i]->lastread);
if ((MQTT_PROTOCOL_LEVEL > 3) &&(buffer[0] & 0x6) == 0x2) {
if ((MQTT_PROTOCOL_LEVEL > 3) && (buffer[0] & 0x6) == 0x2) {
uint8_t ackpacket[4];
// Construct and send puback packet.
uint8_t len = pubackPacket(ackpacket, packetid);
if (!sendPacket(ackpacket, len))
@ -526,11 +554,12 @@ Adafruit_MQTT_Subscribe *Adafruit_MQTT::readSubscription(int16_t timeout) {
void Adafruit_MQTT::flushIncoming(uint16_t timeout) {
// flush input!
DEBUG_PRINTLN(F("Flushing input buffer"));
while (readPacket(buffer, MAXBUFFERSIZE, timeout));
while (readPacket(buffer, MAXBUFFERSIZE, timeout))
;
}
bool Adafruit_MQTT::ping(uint8_t num) {
//flushIncoming(100);
// flushIncoming(100);
while (num--) {
// Construct and send ping packet.
@ -560,15 +589,15 @@ uint8_t Adafruit_MQTT::connectPacket(uint8_t *packet) {
// fixed header, connection messsage no flags
p[0] = (MQTT_CTRL_CONNECT << 4) | 0x0;
p+=2;
p += 2;
// fill in packet[1] last
#if MQTT_PROTOCOL_LEVEL == 3
p = stringprint(p, "MQIsdp");
p = stringprint(p, "MQIsdp");
#elif MQTT_PROTOCOL_LEVEL == 4
p = stringprint(p, "MQTT");
p = stringprint(p, "MQTT");
#else
#error "MQTT level not supported"
#error "MQTT level not supported"
#endif
p[0] = MQTT_PROTOCOL_LEVEL;
@ -582,14 +611,13 @@ uint8_t Adafruit_MQTT::connectPacket(uint8_t *packet) {
p[0] |= MQTT_CONN_WILLFLAG;
if(will_qos == 1)
if (will_qos == 1)
p[0] |= MQTT_CONN_WILLQOS_1;
else if(will_qos == 2)
else if (will_qos == 2)
p[0] |= MQTT_CONN_WILLQOS_2;
if(will_retain == 1)
if (will_retain == 1)
p[0] |= MQTT_CONN_WILLRETAIN;
}
if (pgm_read_byte(username) != 0)
@ -603,8 +631,8 @@ uint8_t Adafruit_MQTT::connectPacket(uint8_t *packet) {
p[0] = MQTT_CONN_KEEPALIVE & 0xFF;
p++;
if(MQTT_PROTOCOL_LEVEL == 3) {
p = stringprint(p, clientid, 23); // Limit client ID to first 23 characters.
if (MQTT_PROTOCOL_LEVEL == 3) {
p = stringprint(p, clientid, 23); // Limit client ID to first 23 characters.
} else {
if (pgm_read_byte(clientid) != 0) {
p = stringprint(p, clientid);
@ -631,23 +659,24 @@ uint8_t Adafruit_MQTT::connectPacket(uint8_t *packet) {
len = p - packet;
packet[1] = len-2; // don't include the 2 bytes of fixed header data
packet[1] = len - 2; // don't include the 2 bytes of fixed header data
DEBUG_PRINTLN(F("MQTT connect packet:"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
}
// as per http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718040
// as per
// http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/os/mqtt-v3.1.1-os.html#_Toc398718040
uint16_t Adafruit_MQTT::publishPacket(uint8_t *packet, const char *topic,
uint8_t *data, uint16_t bLen, uint8_t qos) {
uint8_t *data, uint16_t bLen,
uint8_t qos) {
uint8_t *p = packet;
uint16_t len=0;
uint16_t len = 0;
// calc length of non-header data
len += 2; // two bytes to set the topic size
len += 2; // two bytes to set the topic size
len += strlen(topic); // topic length
if(qos > 0) {
if (qos > 0) {
len += 2; // qos packet id
}
len += bLen; // payload length
@ -661,28 +690,28 @@ uint16_t Adafruit_MQTT::publishPacket(uint8_t *packet, const char *topic,
uint8_t encodedByte = len % 128;
len /= 128;
// if there are more data to encode, set the top bit of this byte
if ( len > 0 ) {
if (len > 0) {
encodedByte |= 0x80;
}
p[0] = encodedByte;
p++;
} while ( len > 0 );
} while (len > 0);
// topic comes before packet identifier
p = stringprint(p, topic);
// add packet identifier. used for checking PUBACK in QOS > 0
if(qos > 0) {
if (qos > 0) {
p[0] = (packet_id_counter >> 8) & 0xFF;
p[1] = packet_id_counter & 0xFF;
p+=2;
p += 2;
// increment the packet id
packet_id_counter++;
}
memmove(p, data, bLen);
p+= bLen;
p += bLen;
len = p - packet;
DEBUG_PRINTLN(F("MQTT publish packet:"));
DEBUG_PRINTBUFFER(buffer, len);
@ -696,12 +725,12 @@ uint8_t Adafruit_MQTT::subscribePacket(uint8_t *packet, const char *topic,
p[0] = MQTT_CTRL_SUBSCRIBE << 4 | MQTT_QOS_1 << 1;
// fill in packet[1] last
p+=2;
p += 2;
// packet identifier. used for checking SUBACK
p[0] = (packet_id_counter >> 8) & 0xFF;
p[1] = packet_id_counter & 0xFF;
p+=2;
p += 2;
// increment the packet id
packet_id_counter++;
@ -712,14 +741,12 @@ uint8_t Adafruit_MQTT::subscribePacket(uint8_t *packet, const char *topic,
p++;
len = p - packet;
packet[1] = len-2; // don't include the 2 bytes of fixed header data
packet[1] = len - 2; // don't include the 2 bytes of fixed header data
DEBUG_PRINTLN(F("MQTT subscription packet:"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
}
uint8_t Adafruit_MQTT::unsubscribePacket(uint8_t *packet, const char *topic) {
uint8_t *p = packet;
@ -727,12 +754,12 @@ uint8_t Adafruit_MQTT::unsubscribePacket(uint8_t *packet, const char *topic) {
p[0] = MQTT_CTRL_UNSUBSCRIBE << 4 | 0x1;
// fill in packet[1] last
p+=2;
p += 2;
// packet identifier. used for checking UNSUBACK
p[0] = (packet_id_counter >> 8) & 0xFF;
p[1] = packet_id_counter & 0xFF;
p+=2;
p += 2;
// increment the packet id
packet_id_counter++;
@ -740,11 +767,10 @@ uint8_t Adafruit_MQTT::unsubscribePacket(uint8_t *packet, const char *topic) {
p = stringprint(p, topic);
len = p - packet;
packet[1] = len-2; // don't include the 2 bytes of fixed header data
packet[1] = len - 2; // don't include the 2 bytes of fixed header data
DEBUG_PRINTLN(F("MQTT unsubscription packet:"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
}
uint8_t Adafruit_MQTT::pingPacket(uint8_t *packet) {
@ -794,7 +820,8 @@ bool Adafruit_MQTT_Publish::publish(uint32_t i) {
}
bool Adafruit_MQTT_Publish::publish(double f, uint8_t precision) {
char payload[41]; // Need to technically hold float max, 39 digits and minus sign.
char payload[41]; // Need to technically hold float max, 39 digits and minus
// sign.
dtostrf(f, 0, precision, payload);
return mqtt->publish(topic, payload, qos);
}
@ -803,13 +830,12 @@ bool Adafruit_MQTT_Publish::publish(const char *payload) {
return mqtt->publish(topic, payload, qos);
}
//publish buffer of arbitrary length
// publish buffer of arbitrary length
bool Adafruit_MQTT_Publish::publish(uint8_t *payload, uint16_t bLen) {
return mqtt->publish(topic, payload, bLen, qos);
}
// Adafruit_MQTT_Subscribe Definition //////////////////////////////////////////
Adafruit_MQTT_Subscribe::Adafruit_MQTT_Subscribe(Adafruit_MQTT *mqttserver,
@ -837,9 +863,10 @@ void Adafruit_MQTT_Subscribe::setCallback(SubscribeCallbackBufferType cb) {
callback_buffer = cb;
}
void Adafruit_MQTT_Subscribe::setCallback(AdafruitIO_MQTT *io, SubscribeCallbackIOType cb) {
void Adafruit_MQTT_Subscribe::setCallback(AdafruitIO_MQTT *io,
SubscribeCallbackIOType cb) {
callback_io = cb;
io_mqtt= io;
io_mqtt = io;
}
void Adafruit_MQTT_Subscribe::removeCallback(void) {

183
Adafruit_MQTT.h
View File

@ -9,8 +9,8 @@
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ -44,50 +44,62 @@
// Define actual debug output functions when necessary.
#ifdef MQTT_DEBUG
#define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
#define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
#define DEBUG_PRINTBUFFER(buffer, len) { printBuffer(buffer, len); }
#define DEBUG_PRINT(...) \
{ DEBUG_PRINTER.print(__VA_ARGS__); }
#define DEBUG_PRINTLN(...) \
{ DEBUG_PRINTER.println(__VA_ARGS__); }
#define DEBUG_PRINTBUFFER(buffer, len) \
{ printBuffer(buffer, len); }
#else
#define DEBUG_PRINT(...) {}
#define DEBUG_PRINTLN(...) {}
#define DEBUG_PRINTBUFFER(buffer, len) {}
#define DEBUG_PRINT(...) \
{}
#define DEBUG_PRINTLN(...) \
{}
#define DEBUG_PRINTBUFFER(buffer, len) \
{}
#endif
#ifdef MQTT_ERROR
#define ERROR_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
#define ERROR_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
#define ERROR_PRINTBUFFER(buffer, len) { printBuffer(buffer, len); }
#define ERROR_PRINT(...) \
{ DEBUG_PRINTER.print(__VA_ARGS__); }
#define ERROR_PRINTLN(...) \
{ DEBUG_PRINTER.println(__VA_ARGS__); }
#define ERROR_PRINTBUFFER(buffer, len) \
{ printBuffer(buffer, len); }
#else
#define ERROR_PRINT(...) {}
#define ERROR_PRINTLN(...) {}
#define ERROR_PRINTBUFFER(buffer, len) {}
#define ERROR_PRINT(...) \
{}
#define ERROR_PRINTLN(...) \
{}
#define ERROR_PRINTBUFFER(buffer, len) \
{}
#endif
// Use 3 (MQTT 3.0) or 4 (MQTT 3.1.1)
#define MQTT_PROTOCOL_LEVEL 4
#define MQTT_CTRL_CONNECT 0x1
#define MQTT_CTRL_CONNECTACK 0x2
#define MQTT_CTRL_PUBLISH 0x3
#define MQTT_CTRL_PUBACK 0x4
#define MQTT_CTRL_PUBREC 0x5
#define MQTT_CTRL_PUBREL 0x6
#define MQTT_CTRL_PUBCOMP 0x7
#define MQTT_CTRL_SUBSCRIBE 0x8
#define MQTT_CTRL_SUBACK 0x9
#define MQTT_CTRL_CONNECT 0x1
#define MQTT_CTRL_CONNECTACK 0x2
#define MQTT_CTRL_PUBLISH 0x3
#define MQTT_CTRL_PUBACK 0x4
#define MQTT_CTRL_PUBREC 0x5
#define MQTT_CTRL_PUBREL 0x6
#define MQTT_CTRL_PUBCOMP 0x7
#define MQTT_CTRL_SUBSCRIBE 0x8
#define MQTT_CTRL_SUBACK 0x9
#define MQTT_CTRL_UNSUBSCRIBE 0xA
#define MQTT_CTRL_UNSUBACK 0xB
#define MQTT_CTRL_PINGREQ 0xC
#define MQTT_CTRL_PINGRESP 0xD
#define MQTT_CTRL_DISCONNECT 0xE
#define MQTT_CTRL_UNSUBACK 0xB
#define MQTT_CTRL_PINGREQ 0xC
#define MQTT_CTRL_PINGRESP 0xD
#define MQTT_CTRL_DISCONNECT 0xE
#define MQTT_QOS_1 0x1
#define MQTT_QOS_0 0x0
#define CONNECT_TIMEOUT_MS 6000
#define PUBLISH_TIMEOUT_MS 500
#define PING_TIMEOUT_MS 500
#define SUBACK_TIMEOUT_MS 500
#define PING_TIMEOUT_MS 500
#define SUBACK_TIMEOUT_MS 500
// Adjust as necessary, in seconds. Default to 5 minutes.
#define MQTT_CONN_KEEPALIVE 300
@ -97,50 +109,46 @@
// 23 char client ID.
#define MAXBUFFERSIZE (150)
#define MQTT_CONN_USERNAMEFLAG 0x80
#define MQTT_CONN_PASSWORDFLAG 0x40
#define MQTT_CONN_WILLRETAIN 0x20
#define MQTT_CONN_WILLQOS_1 0x08
#define MQTT_CONN_WILLQOS_2 0x18
#define MQTT_CONN_WILLFLAG 0x04
#define MQTT_CONN_CLEANSESSION 0x02
#define MQTT_CONN_USERNAMEFLAG 0x80
#define MQTT_CONN_PASSWORDFLAG 0x40
#define MQTT_CONN_WILLRETAIN 0x20
#define MQTT_CONN_WILLQOS_1 0x08
#define MQTT_CONN_WILLQOS_2 0x18
#define MQTT_CONN_WILLFLAG 0x04
#define MQTT_CONN_CLEANSESSION 0x02
// how much data we save in a subscription object
// and how many subscriptions we want to be able to track.
#if defined (__AVR_ATmega32U4__) || defined(__AVR_ATmega328P__)
#define MAXSUBSCRIPTIONS 5
#define SUBSCRIPTIONDATALEN 20
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega328P__)
#define MAXSUBSCRIPTIONS 5
#define SUBSCRIPTIONDATALEN 20
#else
#define MAXSUBSCRIPTIONS 15
#define SUBSCRIPTIONDATALEN 100
#define MAXSUBSCRIPTIONS 15
#define SUBSCRIPTIONDATALEN 100
#endif
class AdafruitIO_MQTT; // forward decl
class AdafruitIO_MQTT; // forward decl
//Function pointer that returns an int
// Function pointer that returns an int
typedef void (*SubscribeCallbackUInt32Type)(uint32_t);
// returns a double
typedef void (*SubscribeCallbackDoubleType)(double);
// returns a chunk of raw data
typedef void (*SubscribeCallbackBufferType)(char *str, uint16_t len);
// returns an io data wrapper instance
typedef void (AdafruitIO_MQTT::*SubscribeCallbackIOType)(char *str, uint16_t len);
typedef void (AdafruitIO_MQTT::*SubscribeCallbackIOType)(char *str,
uint16_t len);
extern void printBuffer(uint8_t *buffer, uint16_t len);
class Adafruit_MQTT_Subscribe; // forward decl
class Adafruit_MQTT_Subscribe; // forward decl
class Adafruit_MQTT {
public:
Adafruit_MQTT(const char *server,
uint16_t port,
const char *cid,
const char *user,
const char *pass);
public:
Adafruit_MQTT(const char *server, uint16_t port, const char *cid,
const char *user, const char *pass);
Adafruit_MQTT(const char *server,
uint16_t port,
const char *user = "",
Adafruit_MQTT(const char *server, uint16_t port, const char *user = "",
const char *pass = "");
virtual ~Adafruit_MQTT() {}
@ -162,23 +170,25 @@ class Adafruit_MQTT {
// connect(). This returns a __FlashStringHelper*, which points to a
// string stored in flash, but can be directly passed to e.g.
// Serial.println without any further processing.
const __FlashStringHelper* connectErrorString(int8_t code);
const __FlashStringHelper *connectErrorString(int8_t code);
// Sends MQTT disconnect packet and calls disconnectServer()
bool disconnect();
// Return true if connected to the MQTT server, otherwise false.
virtual bool connected() = 0; // Subclasses need to fill this in!
virtual bool connected() = 0; // Subclasses need to fill this in!
// Set MQTT last will topic, payload, QOS, and retain. This needs
// to be called before connect() because it is sent as part of the
// connect control packet.
bool will(const char *topic, const char *payload, uint8_t qos = 0, uint8_t retain = 0);
bool will(const char *topic, const char *payload, uint8_t qos = 0,
uint8_t retain = 0);
// Publish a message to a topic using the specified QoS level. Returns true
// if the message was published, false otherwise.
bool publish(const char *topic, const char *payload, uint8_t qos = 0);
bool publish(const char *topic, uint8_t *payload, uint16_t bLen, uint8_t qos = 0);
bool publish(const char *topic, uint8_t *payload, uint16_t bLen,
uint8_t qos = 0);
// Add a subscription to receive messages for a topic. Returns true if the
// subscription could be added or was already present, false otherwise.
@ -190,37 +200,41 @@ class Adafruit_MQTT {
bool unsubscribe(Adafruit_MQTT_Subscribe *sub);
// Check if any subscriptions have new messages. Will return a reference to
// an Adafruit_MQTT_Subscribe object which has a new message. Should be called
// in the sketch's loop function to ensure new messages are recevied. Note
// that subscribe should be called first for each topic that receives messages!
Adafruit_MQTT_Subscribe *readSubscription(int16_t timeout=0);
// an Adafruit_MQTT_Subscribe object which has a new message. Should be
// called in the sketch's loop function to ensure new messages are recevied.
// Note that subscribe should be called first for each topic that receives
// messages!
Adafruit_MQTT_Subscribe *readSubscription(int16_t timeout = 0);
void processPackets(int16_t timeout);
// Ping the server to ensure the connection is still alive.
bool ping(uint8_t n = 1);
protected:
protected:
// Interface that subclasses need to implement:
// Connect to the server and return true if successful, false otherwise.
virtual bool connectServer() = 0;
// Disconnect from the MQTT server. Returns true if disconnected, false otherwise.
virtual bool disconnectServer() = 0; // Subclasses need to fill this in!
// Disconnect from the MQTT server. Returns true if disconnected, false
// otherwise.
virtual bool disconnectServer() = 0; // Subclasses need to fill this in!
// Send data to the server specified by the buffer and length of data.
virtual bool sendPacket(uint8_t *buffer, uint16_t len) = 0;
// Read MQTT packet from the server. Will read up to maxlen bytes and store
// the data in the provided buffer. Waits up to the specified timeout (in
// milliseconds) for data to be available.
virtual uint16_t readPacket(uint8_t *buffer, uint16_t maxlen, int16_t timeout) = 0;
// milliseconds) for data to be available.
virtual uint16_t readPacket(uint8_t *buffer, uint16_t maxlen,
int16_t timeout) = 0;
// Read a full packet, keeping note of the correct length
uint16_t readFullPacket(uint8_t *buffer, uint16_t maxsize, uint16_t timeout);
// Properly process packets until you get to one you want
uint16_t processPacketsUntil(uint8_t *buffer, uint8_t waitforpackettype, uint16_t timeout);
uint16_t processPacketsUntil(uint8_t *buffer, uint8_t waitforpackettype,
uint16_t timeout);
// Shared state that subclasses can use:
const char *servername;
@ -232,37 +246,40 @@ class Adafruit_MQTT {
const char *will_payload;
uint8_t will_qos;
uint8_t will_retain;
uint8_t buffer[MAXBUFFERSIZE]; // one buffer, used for all incoming/outgoing
uint8_t buffer[MAXBUFFERSIZE]; // one buffer, used for all incoming/outgoing
uint16_t packet_id_counter;
private:
private:
Adafruit_MQTT_Subscribe *subscriptions[MAXSUBSCRIPTIONS];
void flushIncoming(uint16_t timeout);
void flushIncoming(uint16_t timeout);
// Functions to generate MQTT packets.
uint8_t connectPacket(uint8_t *packet);
uint8_t disconnectPacket(uint8_t *packet);
uint16_t publishPacket(uint8_t *packet, const char *topic, uint8_t *payload, uint16_t bLen, uint8_t qos);
uint16_t publishPacket(uint8_t *packet, const char *topic, uint8_t *payload,
uint16_t bLen, uint8_t qos);
uint8_t subscribePacket(uint8_t *packet, const char *topic, uint8_t qos);
uint8_t unsubscribePacket(uint8_t *packet, const char *topic);
uint8_t pingPacket(uint8_t *packet);
uint8_t pubackPacket(uint8_t *packet, uint16_t packetid);
};
class Adafruit_MQTT_Publish {
public:
Adafruit_MQTT_Publish(Adafruit_MQTT *mqttserver, const char *feed, uint8_t qos = 0);
public:
Adafruit_MQTT_Publish(Adafruit_MQTT *mqttserver, const char *feed,
uint8_t qos = 0);
bool publish(const char *s);
bool publish(double f, uint8_t precision=2); // Precision controls the minimum number of digits after decimal.
// This might be ignored and a higher precision value sent.
bool publish(
double f,
uint8_t precision =
2); // Precision controls the minimum number of digits after decimal.
// This might be ignored and a higher precision value sent.
bool publish(int32_t i);
bool publish(uint32_t i);
bool publish(uint8_t *b, uint16_t bLen);
private:
Adafruit_MQTT *mqtt;
const char *topic;
@ -270,8 +287,9 @@ private:
};
class Adafruit_MQTT_Subscribe {
public:
Adafruit_MQTT_Subscribe(Adafruit_MQTT *mqttserver, const char *feedname, uint8_t q=0);
public:
Adafruit_MQTT_Subscribe(Adafruit_MQTT *mqttserver, const char *feedname,
uint8_t q = 0);
void setCallback(SubscribeCallbackUInt32Type callb);
void setCallback(SubscribeCallbackDoubleType callb);
@ -290,13 +308,12 @@ class Adafruit_MQTT_Subscribe {
SubscribeCallbackUInt32Type callback_uint32t;
SubscribeCallbackDoubleType callback_double;
SubscribeCallbackBufferType callback_buffer;
SubscribeCallbackIOType callback_io;
SubscribeCallbackIOType callback_io;
AdafruitIO_MQTT *io_mqtt;
private:
private:
Adafruit_MQTT *mqtt;
};
#endif

34
Adafruit_MQTT_Client.cpp
View File

@ -9,8 +9,8 @@
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ -21,15 +21,16 @@
// SOFTWARE.
#include "Adafruit_MQTT_Client.h"
bool Adafruit_MQTT_Client::connectServer() {
// Grab server name from flash and copy to buffer for name resolution.
memset(buffer, 0, sizeof(buffer));
strcpy((char *)buffer, servername);
DEBUG_PRINT(F("Connecting to: ")); DEBUG_PRINTLN((char *)buffer);
DEBUG_PRINT(F("Connecting to: "));
DEBUG_PRINTLN((char *)buffer);
// Connect and check for success (0 result).
int r = client->connect((char *)buffer, portnum);
DEBUG_PRINT(F("Connect result: ")); DEBUG_PRINTLN(r);
DEBUG_PRINT(F("Connect result: "));
DEBUG_PRINTLN(r);
return r != 0;
}
@ -49,26 +50,26 @@ bool Adafruit_MQTT_Client::connected() {
uint16_t Adafruit_MQTT_Client::readPacket(uint8_t *buffer, uint16_t maxlen,
int16_t timeout) {
/* Read data until either the connection is closed, or the idle timeout is reached. */
/* Read data until either the connection is closed, or the idle timeout is
* reached. */
uint16_t len = 0;
int16_t t = timeout;
while (client->connected() && (timeout >= 0)) {
//DEBUG_PRINT('.');
// DEBUG_PRINT('.');
while (client->available()) {
//DEBUG_PRINT('!');
// DEBUG_PRINT('!');
char c = client->read();
timeout = t; // reset the timeout
timeout = t; // reset the timeout
buffer[len] = c;
//DEBUG_PRINTLN((uint8_t)c, HEX);
// DEBUG_PRINTLN((uint8_t)c, HEX);
len++;
if (maxlen == 0) { // handle zero-length packets
return 0;
}
if (len == maxlen) { // we read all we want, bail
if (len == maxlen) { // we read all we want, bail
DEBUG_PRINT(F("Read data:\t"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
@ -88,14 +89,15 @@ bool Adafruit_MQTT_Client::sendPacket(uint8_t *buffer, uint16_t len) {
// send 250 bytes at most at a time, can adjust this later based on Client
uint16_t sendlen = len > 250 ? 250 : len;
//Serial.print("Sending: "); Serial.println(sendlen);
// Serial.print("Sending: "); Serial.println(sendlen);
ret = client->write(buffer, sendlen);
DEBUG_PRINT(F("Client sendPacket returned: ")); DEBUG_PRINTLN(ret);
DEBUG_PRINT(F("Client sendPacket returned: "));
DEBUG_PRINTLN(ret);
len -= ret;
if (ret != sendlen) {
DEBUG_PRINTLN("Failed to send packet.");
return false;
DEBUG_PRINTLN("Failed to send packet.");
return false;
}
} else {
DEBUG_PRINTLN(F("Connection failed!"));

27
Adafruit_MQTT_Client.h
View File

@ -9,8 +9,8 @@
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ -22,30 +22,24 @@
#ifndef _ADAFRUIT_MQTT_CLIENT_H_
#define _ADAFRUIT_MQTT_CLIENT_H_
#include "Client.h"
#include "Adafruit_MQTT.h"
#include "Client.h"
// How long to delay waiting for new data to be available in readPacket.
#define MQTT_CLIENT_READINTERVAL_MS 10
// MQTT client implementation for a generic Arduino Client interface. Can work
// with almost all Arduino network hardware like ethernet shield, wifi shield,
// and even other platforms like ESP8266.
class Adafruit_MQTT_Client : public Adafruit_MQTT {
public:
public:
Adafruit_MQTT_Client(Client *client, const char *server, uint16_t port,
const char *cid, const char *user, const char *pass):
Adafruit_MQTT(server, port, cid, user, pass),
client(client)
{}
const char *cid, const char *user, const char *pass)
: Adafruit_MQTT(server, port, cid, user, pass), client(client) {}
Adafruit_MQTT_Client(Client *client, const char *server, uint16_t port,
const char *user="", const char *pass=""):
Adafruit_MQTT(server, port, user, pass),
client(client)
{}
const char *user = "", const char *pass = "")
: Adafruit_MQTT(server, port, user, pass), client(client) {}
bool connectServer();
bool disconnectServer();
@ -53,9 +47,8 @@ class Adafruit_MQTT_Client : public Adafruit_MQTT {
uint16_t readPacket(uint8_t *buffer, uint16_t maxlen, int16_t timeout);
bool sendPacket(uint8_t *buffer, uint16_t len);
private:
Client* client;
private:
Client *client;
};
#endif

62
Adafruit_MQTT_FONA.h
View File

@ -9,8 +9,8 @@
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ -22,30 +22,25 @@
#ifndef _ADAFRUIT_MQTT_FONA_H_
#define _ADAFRUIT_MQTT_FONA_H_
#include <Adafruit_FONA.h>
#include "Adafruit_MQTT.h"
#include <Adafruit_FONA.h>
#define MQTT_FONA_INTERAVAILDELAY 100
#define MQTT_FONA_QUERYDELAY 500
// FONA-specific version of the Adafruit_MQTT class.
// Note that this is defined as a header-only class to prevent issues with using
// the library on non-FONA platforms (since Arduino will include all .cpp files
// in the compilation of the library).
class Adafruit_MQTT_FONA : public Adafruit_MQTT {
public:
public:
Adafruit_MQTT_FONA(Adafruit_FONA *f, const char *server, uint16_t port,
const char *cid, const char *user, const char *pass):
Adafruit_MQTT(server, port, cid, user, pass),
fona(f)
{}
const char *cid, const char *user, const char *pass)
: Adafruit_MQTT(server, port, cid, user, pass), fona(f) {}
Adafruit_MQTT_FONA(Adafruit_FONA *f, const char *server, uint16_t port,
const char *user="", const char *pass=""):
Adafruit_MQTT(server, port, user, pass),
fona(f)
{}
const char *user = "", const char *pass = "")
: Adafruit_MQTT(server, port, user, pass), fona(f) {}
bool connectServer() {
char server[40];
@ -59,9 +54,7 @@ class Adafruit_MQTT_FONA : public Adafruit_MQTT {
return fona->TCPconnect(server, portnum);
}
bool disconnectServer() {
return fona->TCPclose();
}
bool disconnectServer() { return fona->TCPclose(); }
bool connected() {
// Return true if connected, false if not connected.
@ -72,48 +65,52 @@ class Adafruit_MQTT_FONA : public Adafruit_MQTT {
uint8_t *buffp = buffer;
DEBUG_PRINTLN(F("Reading data.."));
if (!fona->TCPconnected()) return 0;
if (!fona->TCPconnected())
return 0;
/* Read data until either the connection is closed, or the idle timeout is reached. */
/* Read data until either the connection is closed, or the idle timeout is
* reached. */
uint16_t len = 0;
int16_t t = timeout;
uint16_t avail;
while (fona->TCPconnected() && (timeout >= 0)) {
//DEBUG_PRINT('.');
// DEBUG_PRINT('.');
while (avail = fona->TCPavailable()) {
//DEBUG_PRINT('!');
// DEBUG_PRINT('!');
if (len + avail > maxlen) {
avail = maxlen - len;
if (avail == 0) return len;
avail = maxlen - len;
if (avail == 0)
return len;
}
// try to read the data into the end of the pointer
if (! fona->TCPread(buffp, avail)) return len;
if (!fona->TCPread(buffp, avail))
return len;
// read it! advance pointer
buffp += avail;
len += avail;
timeout = t; // reset the timeout
timeout = t; // reset the timeout
//DEBUG_PRINTLN((uint8_t)c, HEX);
// DEBUG_PRINTLN((uint8_t)c, HEX);
if (len == maxlen) { // we read all we want, bail
if (len == maxlen) { // we read all we want, bail
DEBUG_PRINT(F("Read:\t"));
DEBUG_PRINTBUFFER(buffer, len);
return len;
return len;
}
}
#ifdef ADAFRUIT_SLEEPYDOG_H
Watchdog.reset();
#endif
timeout -= MQTT_FONA_INTERAVAILDELAY;
timeout -= MQTT_FONA_QUERYDELAY; // this is how long it takes to query the FONA for avail()
timeout -= MQTT_FONA_QUERYDELAY; // this is how long it takes to query the
// FONA for avail()
delay(MQTT_FONA_INTERAVAILDELAY);
}
return len;
}
@ -121,7 +118,7 @@ class Adafruit_MQTT_FONA : public Adafruit_MQTT {
DEBUG_PRINTLN(F("Writing packet"));
if (fona->TCPconnected()) {
boolean ret = fona->TCPsend((char *)buffer, len);
//DEBUG_PRINT(F("sendPacket returned: ")); DEBUG_PRINTLN(ret);
// DEBUG_PRINT(F("sendPacket returned: ")); DEBUG_PRINTLN(ret);
if (!ret) {
DEBUG_PRINTLN("Failed to send packet.");
return false;
@ -133,10 +130,9 @@ class Adafruit_MQTT_FONA : public Adafruit_MQTT {
return true;
}
private:
private:
uint32_t serverip;
Adafruit_FONA *fona;
};
#endif

2
README.md
View File

@ -1,4 +1,4 @@
# Adafruit MQTT Library [![Build Status](https://travis-ci.com/adafruit/Adafruit_MQTT_Library.svg?branch=master)](https://travis-ci.com/adafruit/Adafruit_MQTT_Library)
# Adafruit MQTT Library [![Build Status](https://github.com/adafruit/Adafruit_MQTT_Library/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/Adafruit_MQTT_Library/actions)
Arduino library for MQTT support, including access to Adafruit IO. Works with
the Adafruit FONA, Arduino Yun, ESP8266 Arduino platforms, and anything that supports

31
examples/mqtt_fona/fonahelper.cpp
View File

@ -1,20 +1,27 @@
#include "Adafruit_FONA.h"
#include <Adafruit_SleepyDog.h>
#include <SoftwareSerial.h>
#include "Adafruit_FONA.h"
#define halt(s) { Serial.println(F( s )); while(1); }
#define halt(s) \
{ \
Serial.println(F(s)); \
while (1) \
; \
}
extern Adafruit_FONA fona;
extern SoftwareSerial fonaSS;
boolean FONAconnect(const __FlashStringHelper *apn, const __FlashStringHelper *username, const __FlashStringHelper *password) {
boolean FONAconnect(const __FlashStringHelper *apn,
const __FlashStringHelper *username,
const __FlashStringHelper *password) {
Watchdog.reset();
Serial.println(F("Initializing FONA....(May take 3 seconds)"));
fonaSS.begin(4800); // if you're using software serial
if (! fona.begin(fonaSS)) { // can also try fona.begin(Serial1)
if (!fona.begin(fonaSS)) { // can also try fona.begin(Serial1)
Serial.println(F("Couldn't find FONA"));
return false;
}
@ -23,25 +30,25 @@ boolean FONAconnect(const __FlashStringHelper *apn, const __FlashStringHelper *u
Watchdog.reset();
Serial.println(F("Checking for network..."));
while (fona.getNetworkStatus() != 1) {
delay(500);
delay(500);
}
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
fona.setGPRSNetworkSettings(apn, username, password);
Serial.println(F("Disabling GPRS"));
fona.enableGPRS(false);
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
Serial.println(F("Enabling GPRS"));
if (!fona.enableGPRS(true)) {
Serial.println(F("Failed to turn GPRS on"));
Serial.println(F("Failed to turn GPRS on"));
return false;
}
Watchdog.reset();

3
library.properties
View File

@ -1,5 +1,5 @@
name=Adafruit MQTT Library
version=1.0.3
version=1.1.0
author=Adafruit
maintainer=Adafruit <info@adafruit.com>
sentence=MQTT library that supports the FONA, ESP8266, Yun, and generic Arduino Client hardware.
@ -7,3 +7,4 @@ paragraph=Simple MQTT library that supports the bare minimum to publish and subs
category=Communication
url=https://github.com/adafruit/Adafruit_MQTT_Library
architectures=*
depends=Adafruit SleepyDog Library, Adafruit FONA Library, WiFi101