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added simple publish method with retained flag #34

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added simple publish method with retained flag #34

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8653931
added simple publish method with retained flag
doebi Sep 2, 2015
4cb975a
added default constructor
doebi Jan 3, 2016
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11 changes: 11 additions & 0 deletions src/PubSubClient.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@
#include "PubSubClient.h"
#include <string.h>

PubSubClient::PubSubClient(){}

PubSubClient::PubSubClient(Client& c) :
_callback(NULL),
_client(&c),
Expand Down Expand Up @@ -227,6 +229,15 @@ bool PubSubClient::publish(String topic, String payload) {
return publish(pub);
}

bool PubSubClient::publish(String topic, String payload, bool retained) {
if (!connected())
return false;

MQTT::Publish pub(topic, payload);
pub.set_retain(retained);
return publish(pub);
}

bool PubSubClient::publish(String topic, const uint8_t* payload, uint32_t plength, bool retained) {
if (!connected())
return false;
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9 changes: 9 additions & 0 deletions src/PubSubClient.h
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Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,7 @@ class PubSubClient {
/*!
Use set_server() before connect()
*/
PubSubClient();
PubSubClient(Client& c);

//! Constructor with the server ip address
Expand Down Expand Up @@ -131,6 +132,14 @@ class PubSubClient {
*/
bool publish(String topic, String payload);

//! Publish a string payload
/*!
\param topic Topic of the message
\param payload String text of the message
\param retained If true, this message will be stored on the server and
*/
bool publish(String topic, String payload, bool retained);

//! Publish an arbitrary data payload
/*!
\param topic Topic of the message
Expand Down