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#include "midimonster.h"
MM_PLUGIN_API int init();
static int mqtt_configure(char* option, char* value);
static int mqtt_configure_instance(instance* inst, char* option, char* value);
static int mqtt_instance(instance* inst);
static channel* mqtt_channel(instance* inst, char* spec, uint8_t flags);
static int mqtt_set(instance* inst, size_t num, channel** c, channel_value* v);
static int mqtt_handle(size_t num, managed_fd* fds);
static int mqtt_start(size_t n, instance** inst);
static int mqtt_shutdown(size_t n, instance** inst);
#define MQTT_PORT "1883"
#define MQTT_TLS_PORT "8883"
#define MQTT_BUFFER_LENGTH 8192
#define MQTT_KEEPALIVE 10
#define MQTT_VERSION_DEFAULT 0x05
#define MQTT5_NO_LOCAL 0x04
enum /*_mqtt_property_storage_classes*/ {
STORAGE_U8,
STORAGE_U16,
STORAGE_U32,
STORAGE_VARINT,
STORAGE_PREFIXED,
STORAGE_PREFIXPAIR
};
enum {
MSG_RESERVED = 0x00,
MSG_CONNECT = 0x10,
MSG_CONNACK = 0x20,
MSG_PUBLISH = 0x30,
MSG_PUBACK = 0x40,
MSG_PUBREC = 0x50,
MSG_PUBREL = 0x60,
MSG_PUBCOMP = 0x70,
MSG_SUBSCRIBE = 0x82,
MSG_SUBACK = 0x90,
MSG_UNSUBSCRIBE = 0xA0,
MSG_UNSUBACK = 0xB0,
MSG_PINGREQ = 0xC0,
MSG_PINGRESP = 0xD0,
MSG_DISCONNECT = 0xE0,
MSG_AUTH = 0xF0
};
typedef struct /*_mqtt_value_mapping*/ {
double min;
double max;
double normal;
char* discrete;
} mqtt_channel_value;
typedef struct /*_mqtt_channel*/ {
char* topic;
uint16_t topic_alias_sent;
uint16_t topic_alias_rcvd;
uint8_t flags;
size_t values;
mqtt_channel_value* value;
} mqtt_channel_data;
typedef struct /*_mqtt_instance_data*/ {
uint8_t tls;
char* host;
char* port;
uint8_t mqtt_version;
char* user;
char* password;
char* client_id;
size_t nchannels;
mqtt_channel_data* channel;
int fd;
uint8_t receive_buffer[MQTT_BUFFER_LENGTH];
size_t receive_offset;
uint64_t last_control;
uint16_t packet_identifier;
uint16_t server_max_alias;
uint16_t current_alias;
} mqtt_instance_data;
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