arduino/Adafruit_MQTT_Library
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Add connected() function to MQTT class. Update examples with robust reconnect logic.

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This commit is contained in:
Tony DiCola
2015-07-05 14:29:13 -07:00
parent 207bcd44dd
commit 643c906aa6
7 changed files with 148 additions and 93 deletions
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11
Adafruit_MQTT.h
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@ -66,7 +66,7 @@
#define MQTT_CONN_KEEPALIVE 300
// Largest full packet we're able to send.
// Need to be able to store at least ~90 chars for a connect packet with full
// Need to be able to store at least ~90 chars for a connect packet with full
// 23 char client ID.
#define MAXBUFFERSIZE (105)
@ -92,7 +92,7 @@ class Adafruit_MQTT_Subscribe; // forward decl
class Adafruit_MQTT {
public:
Adafruit_MQTT(const char *server, uint16_t port, const char *cid,
Adafruit_MQTT(const char *server, uint16_t port, const char *cid,
const char *user, const char *pass);
virtual ~Adafruit_MQTT() {}
@ -111,10 +111,13 @@ class Adafruit_MQTT {
// otherwise.
virtual bool disconnect() = 0; // Subclasses need to fill this in!
// Return true if connected to the MQTT server, otherwise false.
virtual bool connected() = 0; // Subclasses need to fill this in!
// 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, char *payload, uint8_t qos);
// Add a subscription to receive messages for a topic. Returns true if the
// subscription could be added, false otherwise.
bool subscribe(Adafruit_MQTT_Subscribe *sub);
@ -173,7 +176,7 @@ class Adafruit_MQTT_Publish {
// This might be ignored and a higher precision value sent.
bool publish(int32_t i);
bool publish(uint32_t i);
private:
Adafruit_MQTT *mqtt;
const char *topic;