--- libaitmqtt/inc/mqttapi.h 2012/04/25 16:26:38 1.1.2.4 +++ libaitmqtt/inc/mqttapi.h 2012/05/09 13:48:31 1.1.2.10 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: mqttapi.h,v 1.1.2.4 2012/04/25 16:26:38 misho Exp $ +* $Id: mqttapi.h,v 1.1.2.10 2012/05/09 13:48:31 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -50,29 +50,31 @@ SUCH DAMAGE. #include "aitmqtt.h" +#ifdef API_SERVER_SIDE /* MQTT server structure & hooks */ -/* MQTT command callback. 1st argument is (mqtt_srv_t*) server handle */ -typedef int (*mqtt_cb_t)(void* /*mqtt_srv_t**/, void *); +/* MQTT command callback. 1st argument is (mqtt_srv_t*) server handle, 2nd is ready length */ +typedef int (*mqtt_cb_t)(void* /*mqtt_srv_t**/, int, void *); typedef struct { mqtt_cb_t cmds[MQTT_TYPE_MAX]; int sock; + unsigned short timeout; mqtt_msg_t *buf; } mqtt_srv_t; #define mqtt_srv_setCmd(x, _cmd, _func) (assert((x)), (x)->cmds[(_cmd)] = (_func)) #define mqtt_srv_getCmd(x, _cmd) (assert((x)), (x)->cmds[(_cmd)]) -#ifdef API_SERVER_SIDE /* * mqtt_srv_Init() Init server side actor * * @sock = Client socket from accept() * @buf = Message buffer + * @timeout = timeout * return: NULL error or !=NULL allocated server handle */ -mqtt_srv_t *mqtt_srv_Init(int sock, mqtt_msg_t * __restrict buf); +mqtt_srv_t *mqtt_srv_Init(int sock, mqtt_msg_t * __restrict buf, unsigned short timeout); /* * mqtt_srv_Fini() Finish MQTT server side support * @@ -84,10 +86,11 @@ void mqtt_srv_Fini(mqtt_srv_t ** __restrict psrv); * mqtt_srv_Dispatch() MQTT server dispatcher * * @srv = Server handle + * @rlen = Ready bytes to parse * @arg = Argument pass to command callback * return: -1 error or 0 ok */ -int mqtt_srv_Dispatch(mqtt_srv_t * __restrict srv, void *arg); +int mqtt_srv_Dispatch(mqtt_srv_t * __restrict srv, int rlen, void *arg); #endif /* @@ -100,7 +103,76 @@ int mqtt_srv_Dispatch(mqtt_srv_t * __restrict srv, voi */ int mqtt_KeepAlive(int sock, unsigned short ka, unsigned char tries); + #ifdef API_CLIENT_SIDE +/* MQTT client structure */ + +typedef struct { + int sock; + unsigned short timeout; + mqtt_msg_t *buf; +} mqtt_cli_t; + + +/* + * mqtt_cli_Open() - Open client connection to MQTT broker + * + * @addr = brokers address + * @timeout = timeout + * return: NULL error or !=NULL connected to broker + */ +mqtt_cli_t *mqtt_cli_Open(struct sockaddr *addr, unsigned short timeout); +/* + * mqtt_cli_Close() - Close client connection + * + * @cli = connected client + * return: -1 error or 0 disconnected client and freed all resources + */ +int mqtt_cli_Close(mqtt_cli_t ** __restrict cli); + +/* + * mqtt_cli_Subscribe() - Subscribe to broker + * + * @cli = connected client + * @Topics = Topics for subscribes + * @msgID = Message ID + * @Dup = Duplicated request + * @QoS = Message QoS + * return: NULL error or !=NULL allocated array with subscribed QoS responses, + * must be free() result! + */ +unsigned char *mqtt_cli_Subscribe(mqtt_cli_t * __restrict cli, + mqtt_subscr_t * __restrict Topics, unsigned short msgID, + unsigned char Dup, unsigned char QoS); +/* + * mqtt_cli_Unsubscribe() - Unsubscribe from broker + * + * @cli = connected client + * @Topics = Topics for unsubscribes + * @msgID = Message ID + * @Dup = Duplicated request + * @QoS = Message QoS + * return: -1 error or 0 ok + */ +int mqtt_cli_Unsubscribe(mqtt_cli_t * __restrict cli, + mqtt_subscr_t * __restrict Topics, unsigned short msgID, + unsigned char Dup, unsigned char QoS); +/* + * mqtt_cli_Publish() - Publish message to broker + * + * @cli = connected client + * @msgID = Message ID + * @Dup = Duplicated request + * @QoS = Message QoS + * @Retain = Retain message + * @csTopic = Topic + * @pData = Data + * @datLen = Data length + * return: -1 error or 0 ok + */ +int mqtt_cli_Publish(mqtt_cli_t * __restrict cli, unsigned short msgID, + unsigned char Dup, unsigned char QoS, unsigned char Retain, + const char *csTopic, const void *pData, int datLen); #endif