arduino/Adafruit_MQTT_Library
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Use const pointers for payload

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The payload data is never modified by the library, so using const is
possible without any further changes. Using const allows using a string
literal, or String::c_str() as the payload.
This commit is contained in:
Matthijs Kooijman
2015-07-02 12:59:46 +02:00
parent d4e27c9b3f
commit 73f5be4e5c
2 changed files with 6 additions and 6 deletions
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6
Adafruit_MQTT.cpp
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@ -140,7 +140,7 @@ int8_t Adafruit_MQTT::connect() {
return 0;
}
bool Adafruit_MQTT::publish(const char *topic, char *data, uint8_t qos) {
bool Adafruit_MQTT::publish(const char *topic, const char *data, uint8_t qos) {
// Construct and send publish packet.
uint8_t len = publishPacket(buffer, topic, data, qos);
if (!sendPacket(buffer, len))
@ -294,7 +294,7 @@ uint8_t Adafruit_MQTT::connectPacket(uint8_t *packet) {
}
uint8_t Adafruit_MQTT::publishPacket(uint8_t *packet, const char *topic,
char *data, uint8_t qos) {
const char *data, uint8_t qos) {
uint8_t *p = packet;
uint16_t len;
@ -375,7 +375,7 @@ bool Adafruit_MQTT_Publish::publish(uint32_t i) {
return mqtt->publish(topic, payload, qos);
}
bool Adafruit_MQTT_Publish::publish(char *payload) {
bool Adafruit_MQTT_Publish::publish(const char *payload) {
return mqtt->publish(topic, payload, qos);
}