arduino/Adafruit_MQTT_Library
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max receivable MQTT packet is 16 bits (tested with 300 byte packet receive)

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also fixd buffer printer to have 16 bit length
This commit is contained in:
ladyada
2016-07-06 17:20:02 -04:00
parent 121aa3865c
commit b26b4eb32c
6 changed files with 22 additions and 17 deletions
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8
Adafruit_MQTT.h
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@ -78,7 +78,7 @@
// Largest full packet we're able to send.
// Need to be able to store at least ~90 chars for a connect packet with full
// 23 char client ID.
#define MAXBUFFERSIZE (125)
#define MAXBUFFERSIZE (150)
#define MQTT_CONN_USERNAMEFLAG 0x80
#define MQTT_CONN_PASSWORDFLAG 0x40
@ -99,7 +99,7 @@
//and returns an int
typedef void (*SubscribeCallbackType)(char *);
extern void printBuffer(uint8_t *buffer, uint8_t len);
extern void printBuffer(uint8_t *buffer, uint16_t len);
class Adafruit_MQTT_Subscribe; // forward decl
@ -201,10 +201,10 @@ class Adafruit_MQTT {
// 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, uint8_t maxlen, int16_t timeout) = 0;
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 timeout);
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);