MQTT protocol iOS Port porting 1

MQTTClient.h

#import <Foundation/Foundation.h> @protocol mqttdelegate <nsobject>/** * @brief Connection Server * * @param [in] n/A * @pa Ram [out] N/A * @return void * @note */-(void) Didconnect: (Nsuinteger) code;/** * @brief disconnected from the server * * @param [in] n/A * @ param [out] n/A * @return void * @note */-(void) diddisconnect;/** * @brief * * @param [in] n/A * @param [out] n/A * @re  turn void * @note */-(void) Didpublish: (nsuinteger) messageid;//fixme:create mosquittomessage class/** * @brief receive messages * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) Didreceivemessage: (nsstring*) message topic: (NSSTR ing*) topic;/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) Didsubscribe: (Nsuintege R) messageId Grantedqos: (nsarray*) qos;/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void    ) Didunsubscribe: (Nsuinteger) messageId; @end @interface mqttclient:nsobject{struct Mosquitto *mosq;    NSString *host; Unsigned Short Port;    NSString *username;    NSString *password;    unsigned short keepAlive;        BOOL cleansession;    Id<mqttdelegate> delegate; Nstimer *timer;} @property (Readwrite,retain) nsstring *host; @property (readwrite,assign) unsigned short port; @property ( Readwrite,retain) NSString *username; @property (readwrite,retain) nsstring *password; @property (re adwrite,assign) unsigned short keepAlive; @property (readwrite,assign) BOOL cleansession; @property (r 　eadwrite,assign) id<mqttdelegate> delegate;/** * @brief Singleton mode Setting * * @param [in] n/A * @param [out] n/A * @return void * @note */+ (mqttclient *) getmqttinstance;/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */+ (void) initialize;/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */+ (nsstring*) version;/ * * @brief * *@param [in] n/A * @param [out] n/A * @return void * @note */-(mqttclient *) Initwithclientid: (nsstring*) clientid;/** *  @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) Setmessageretry: (Nsuinteger) seconds;/** * @brief Connection Server * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) connect;/** * @brief connected to host * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) Connecttohost: (nsstring*) host;/** * @brief * * @pa Ram [in] n/A * @param [out] n/A * @return void * @note */-(void) reconnect;/** * @brief * * @param [in] n/A * @param [out ] N/A * @return void * @note */-(void) disconnect;/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @n OTE */-(void) publishstring: (NSString *) payload totopic: (NSString *) topic retain: (BOOL) retain;//-(void) publishmessage/** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */-(void) Subscribe: (NSString *) topic;/** * @brief * * @param [in] n/A *@param [out] n/A * @return void * @note */-(void) Subscribe: (NSString *) topic Withqos: (Nsuinteger) qos;/** * @brief * * @p Aram [in] n/A * @param [out] n/A * @return void * @note */-(void) Unsubscribe: (NSString *) topic;//this is called Automat ically when connected-(void) Loop: (Nstimer *) timer; @end

Mqttclient.m

#import "MQTTClient.h" #import "mosquitto.h" @implementation mqttclient@synthesize host; @synthesize Port; @synthesize Username, @synthesize password, @synthesize keepAlive, @synthesize cleansession; @synthesize delegate;/** * @brief Setting of the Singleton mode * * @param [in] n/A * @param [out] n/A * @return void * @note */static mqttclient *qttinstance = nil;+ (mqttclient        *) getmqttinstance{@synchronized (self) {if (Qttinstance==nil) {qttinstance=[[self alloc]init]; }}return qttinstance;} /** * @brief Connection to MQTT * * @param [in] n/A * @param [out] n/A * @return void * @note */static void on_connect (struct Mosquitt    o *mosq, void *obj, int rc) {mqttclient* client = (mqttclient *) obj; [[Client Delegate] Didconnect: (Nsuinteger) RC];} /** * @brief disconnected from MQTT * * @param [in] n/A * @param [out] n/A * @return void * @note */static void on_disconnect (struct m    Osquitto *mosq, void *obj, int rc) {mqttclient* client = (mqttclient *) obj; [[Client delegate] diddisconnect];} /** * @brief Publish message * * @param [in]　N/A * @param [out] n/A * @return void * @note */static void on_publish (struct Mosquitto *mosq, void *obj, int message_id)    {mqttclient* client = (mqttclient *) obj; [[Client Delegate] Didpublish: (Nsuinteger) message_id];} /** * @brief Receive Message * * @param [in] n/A * @param [out] n/A * @return void * @note */static void On_message (Struc    T Mosquitto *mosq, void *obj, const struct Mosquitto_message *message) {mqttclient * client = (mqttclient *) obj;    NSString *topic = [NSString stringwithutf8string:message->topic];                                                  NSString *payload = [[[NSString Alloc] Initwithbytes:message->payload        Length:message->payloadlen encoding:nsutf8stringencoding] autorelease]; Fixme:create Mosquittomessage class instead [[Client delegate] Didreceivemessage:payload Topic:topic];} /** * @brief didsubscribe * * @param [in] n/A * @param [out] n/A * @return void * @note */static voiD on_subscribe (struct Mosquitto *mosq, void *obj, int message_id, int qos_count, const int *granted_qos) {Mqttclient *    Client = (mqttclient *) obj; Fixme:implement this [[client delegate] didsubscribe:message_id Grantedqos:nil];} /** * @brief * * @param [in] n/A * @param [out] n/A * @return void * @note */static void on_unsubscribe (struct mosquitto    *mosq, void *obj, int message_id) {mqttclient * client = (mqttclient *) obj; [[Client delegate] didunsubscribe:message_id];} /** * @brief Initialize is called just before the first object was allocated * * @param [in] n/A * @param [out] n/A * @ret urn void * @note */+ (void) initialize{mosquitto_lib_init ();} /** * @brief Version information * * @param [in] n/A * @param [out] n/A * @return void * @note */+ (nsstring*) version{int Major, Mino    R, Revision;    Mosquitto_lib_version (&major, &minor, &revision); return [NSString stringwithformat:@ "%d.%d.%d", major, minor, revision];} /** * @brief Set some parameter status configuration * * @param [in] n/A * @pAram [out] N/A * @return void * @note */-(mqttclient *) Initwithclientid: (nsstring*) clientid{if (self = [Super ini        T]) {const char* Cstrclientid = [ClientId cstringusingencoding:nsutf8stringencoding];        [Self sethost:nil];        [Self setport:1883];        [Self setkeepalive:60];                [Self setcleansession:yes];        MOSQ = Mosquitto_new (Cstrclientid, cleansession, self);        Mosquitto_connect_callback_set (MOSQ, on_connect);        Mosquitto_disconnect_callback_set (MOSQ, on_disconnect);        Mosquitto_publish_callback_set (MOSQ, on_publish);        Mosquitto_message_callback_set (MOSQ, on_message);        Mosquitto_subscribe_callback_set (MOSQ, on_subscribe);        Mosquitto_unsubscribe_callback_set (MOSQ, on_unsubscribe);    Timer = nil; } return self;}    -(void) connect{const char *cstrhost = [host cstringusingencoding:nsasciistringencoding];        const char *cstrusername = NULL, *cstrpassword = NULL; if (username) CSTrusername = [username cstringusingencoding:nsutf8stringencoding];        if (password) Cstrpassword = [Password cstringusingencoding:nsutf8stringencoding];        Fixme:check for errors Mosquitto_username_pw_set (MOSQ, Cstrusername, Cstrpassword);        int ret = Mosquitto_connect (MOSQ, Cstrhost, Port, keepAlive);    NSLog (@ "Mqtt-ret-code =%d", ret);    if (ret = = 0) {NSLog (@ "//connection successfully set UD");    } else {NSLog (@ "//Connection Failed");    }//Setup timer to handle network events//Fixme:better-do this-hook into IOS Run Loop select ()?    or run in seperate thread?                                           Timer = [Nstimer scheduledtimerwithtimeinterval:0.01//10ms target:self                                            Selector: @selector (loop:) Userinfo:nil Repeats:yes];} -(void) Connecttohost: (nsstring*) ahost{[self sethost:ahost];   [Self connect];} -(void) reconnect{mosquitto_reconnect (MOSQ);}-(void) disconnect{mosquitto_disconnect (MOSQ);} -(void) Loop: (Nstimer *) timer{Mosquitto_loop (MOSQ, 1, 1);} Fixme:add QoS parameter?-(void) publishstring: (NSString *) payload totopic: (NSString *) topic retain: (BOOL) retain{C    Onst char* cstrtopic = [topic cstringusingencoding:nsutf8stringencoding];    Const uint8_t* Cstrpayload = (const uint8_t*) [payload cstringusingencoding:nsutf8stringencoding]; Mosquitto_publish (MOSQ, NULL, cstrtopic, [payload length], cstrpayload, 0, retain);} -(void) Subscribe: (NSString *) topic{[self subscribe:topic withqos:0];} -(void) Subscribe: (NSString *) topic Withqos: (nsuinteger) qos{const char* cstrtopic = [Topic Cstringusingencoding:nsutf    8StringEncoding]; Mosquitto_subscribe (MOSQ, NULL, Cstrtopic, QoS);}    -(void) Unsubscribe: (NSString *) topic{const char* cstrtopic = [topic cstringusingencoding:nsutf8stringencoding]; Mosquitto_unsubscribe (MOSQ, NULL, Cstrtopic);} -(void) Setmessageretry: (Nsuinteger) seconds{Mosquitto_message_retry_set (mosq, (unsigned int) seconds);}        -(void) dealloc{if (mosq) {Mosquitto_destroy (MOSQ);    MOSQ = NULL;        } if (timer) {[Timer invalidate];    Timer = nil; } [Super Dealloc];} Fixme:how and when to call Mosquitto_lib_cleanup ()? @end