| | |
| | | #include <mosquitto.h> |
| | | |
| | | #include "logger.h" |
| | | #include "cJSON.h" |
| | | #include "proc.h" |
| | | #include "hal.h" |
| | | |
| | |
| | | |
| | | typedef struct mqtt_ctx_s |
| | | { |
| | | /* Broker settings */ |
| | | char host[128]; /* MQTT broker server name */ |
| | | int port; /* MQTT broker listen port */ |
| | | int keepalive; /* MQTT broker send PING message to subsciber/publisher keepalive timeout<seconds> */ |
| | | char uid[64]; /* username */ |
| | | char pwd[64]; /* password */ |
| | | |
| | | /* Publisher */ |
| | | int pubQos; |
| | | /* Publisher settings */ |
| | | int pubQos; /* Publisher Qos */ |
| | | int interval; /* Publish sensor data interval time, unit seconds */ |
| | | |
| | | /* Subscriber */ |
| | | int subQos; |
| | | /* Subscriber settings */ |
| | | int subQos; /* Subscriber Qos */ |
| | | |
| | | } mqtt_ctx_t; |
| | | |
| | | |
| | |
| | | strcpy(ctx.host, "127.0.0.1"); |
| | | ctx.port = 10883; |
| | | ctx.keepalive = 60; |
| | | strcpy(ctx.uid, "lingyun"); |
| | | strcpy(ctx.pwd, "lingyun-emb"); |
| | | |
| | | ctx.pubQos = Qos0; |
| | | ctx.interval = 300; |
| | | ctx.subQos = Qos2; |
| | | |
| | | //if( logger_init("mqttd.log", LOG_LEVEL_DEBUG, 1024) < 0 ) |
| | |
| | | return 0; |
| | | } |
| | | |
| | | |
| | | void pub_connect_callback(struct mosquitto *mosq, void *userdata, int result) |
| | | { |
| | | mqtt_ctx_t *ctx = (mqtt_ctx_t *)userdata; |
| | | int rv = 0; |
| | | char msg[128]; |
| | | float temp = 25.64; |
| | | float rh = 65.35; |
| | | char light[] = "on"; |
| | | |
| | | if( result ) |
| | | { |
| | | log_err("Publisher connect to broker server[%s:%d] failed, rv=%d\n", ctx->host, ctx->port, result); |
| | | return ; |
| | | } |
| | | |
| | | log_nrml("Publisher connect to broker server[%s:%d] successfully\n", ctx->host, ctx->port); |
| | | |
| | | memset(msg, 0, sizeof(msg)); |
| | | snprintf(msg, sizeof(msg), "{ \"temp\":\"%.2f\", \"R&H\":\"%.2f%%\" }", temp, rh); |
| | | |
| | | rv = mosquitto_publish(mosq, NULL, MQTT_SYS_ULINK_TOPIC, strlen(msg)+1, msg, ctx->pubQos, 0); |
| | | if( rv ) |
| | | { |
| | | log_err("Publisher broadcast message '%s' failure: %d\n", msg, rv); |
| | | } |
| | | else |
| | | { |
| | | log_nrml("Publisher broadcast message '%s' ok\n", msg); |
| | | } |
| | | |
| | | memset(msg, 0, sizeof(msg)); |
| | | snprintf(msg, sizeof(msg), "{ \"light\":\"%s\" }", light); |
| | | |
| | | rv = mosquitto_publish(mosq, NULL, MQTT_SYS_ULINK_TOPIC, strlen(msg)+1, msg, ctx->pubQos, 0); |
| | | if( rv ) |
| | | { |
| | | log_err("Publisher broadcast message failure: %d\n", rv); |
| | | } |
| | | else |
| | | { |
| | | log_nrml("Publisher broadcast message '%s' ok\n", msg); |
| | | } |
| | | |
| | | log_nrml("Publisher broadcast over and disconnect broker now\n", ctx->host, ctx->port); |
| | | mosquitto_disconnect(mosq); |
| | | |
| | | return ; |
| | | } |
| | | |
| | | |
| | | void *mqtt_pub_worker(void *args) |
| | | { |
| | | mqtt_ctx_t *ctx = (mqtt_ctx_t *)args; |
| | | struct mosquitto *mosq; |
| | | bool session = true; |
| | | char msg[128]; |
| | | float temp = 25.64; |
| | | float rh = 65.35; |
| | | int rv = 0; |
| | | |
| | | |
| | | mosq = mosquitto_new(NULL, session, ctx); |
| | | if( !mosq ) |
| | |
| | | return NULL; |
| | | } |
| | | |
| | | /* set connnect to broker username and password */ |
| | | if( strlen(ctx->uid)> 0 && strlen(ctx->pwd)> 0 ) |
| | | mosquitto_username_pw_set(mosq, ctx->uid, ctx->pwd); |
| | | |
| | | /* set callback functions */ |
| | | mosquitto_connect_callback_set(mosq, pub_connect_callback); |
| | | |
| | | while( !g_signal.stop ) |
| | | { |
| | | /* connect to MQTT broker */ |
| | | if( mosquitto_connect(mosq, ctx->host, ctx->port, ctx->keepalive) ) |
| | | { |
| | | log_err("Publisher connect to broker[%s:%d] failure: %s\n", ctx->host, ctx->port, strerror(errno)); |
| | | msleep(1000); |
| | | continue; |
| | | } |
| | | log_nrml("Publisher connect to broker server[%s:%d] successfully\n", ctx->host, ctx->port); |
| | | |
| | | /* -1: use default timeout 1000ms 1: unused */ |
| | | mosquitto_loop_forever(mosq, -1, 1); |
| | | |
| | | memset(msg, 0, sizeof(msg)); |
| | | snprintf(msg, sizeof(msg), "{ \"temp\":\"%.2f\", \"R&H\":\"%.2f%%\" }", temp, rh); |
| | | |
| | | |
| | | rv = mosquitto_publish(mosq, NULL, MQTT_SYS_ULINK_TOPIC, strlen(msg)+1, msg, ctx->pubQos, 0); |
| | | if( rv ) |
| | | { |
| | | log_err("Publisher publish message failure: %d\n", rv); |
| | | } |
| | | else |
| | | { |
| | | log_nrml("Publisher publish message '%s' ok\n", msg); |
| | | } |
| | | |
| | | |
| | | mosquitto_disconnect(mosq); |
| | | msleep(3000); |
| | | /* Publisher broadcast sensors data message interval time, unit seconds */ |
| | | sleep( ctx->interval ); |
| | | } |
| | | |
| | | mosquitto_destroy(mosq); |
| | | return NULL; |
| | | } |
| | | |
| | | |
| | | void sub_connect_callback(struct mosquitto *mosq, void *userdata, int result) |
| | | { |
| | |
| | | } |
| | | |
| | | log_nrml("Subscriber connect to broker server[%s:%d] successfully\n", ctx->host, ctx->port); |
| | | mosquitto_subscribe(mosq, NULL, MQTT_SYS_TOPIC"#", ctx->subQos); |
| | | //mosquitto_subscribe(mosq, NULL, MQTT_SYS_DLINK_TOPIC, 2); |
| | | mosquitto_subscribe(mosq, NULL, MQTT_SYS_DLINK_TOPIC, 2); |
| | | } |
| | | |
| | | void sub_disconnect_callback(struct mosquitto *mosq, void *userdata, int result) |
| | |
| | | } |
| | | |
| | | |
| | | void sub_message_callback(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *message) |
| | | void proc_json_items(cJSON *root) |
| | | { |
| | | if(message->payloadlen) |
| | | int i; |
| | | char *value; |
| | | cJSON *item; |
| | | cJSON *array; |
| | | |
| | | if( !root ) |
| | | { |
| | | log_nrml("Subscriber Recv: %s->%s\n", message->topic, message->payload); |
| | | log_err("Invalid input arguments $root\n"); |
| | | return ; |
| | | } |
| | | |
| | | for( i=0; i<cJSON_GetArraySize(root); i++ ) |
| | | { |
| | | item = cJSON_GetArrayItem(root, i); |
| | | if( !item ) |
| | | break; |
| | | |
| | | /* if item is cJSON_Object, then recursive call proc_json */ |
| | | if( cJSON_Object == item->type ) |
| | | { |
| | | proc_json_items(item); |
| | | } |
| | | else if( cJSON_Array == item->type ) |
| | | { |
| | | /* RGB colors led control */ |
| | | if( !strcasecmp(item->string, "led") ) |
| | | { |
| | | array = cJSON_GetArrayItem(item, 0); |
| | | if( NULL != array ) |
| | | { |
| | | cJSON *led_item; |
| | | |
| | | if( NULL != (led_item=cJSON_GetObjectItem(array , "red")) ) |
| | | { |
| | | log_nrml("turn red led '%s'\n", led_item->valuestring); |
| | | } |
| | | |
| | | if( NULL != (led_item=cJSON_GetObjectItem(array , "green")) ) |
| | | { |
| | | log_nrml("turn green led '%s'\n", led_item->valuestring); |
| | | } |
| | | |
| | | if( NULL != (led_item=cJSON_GetObjectItem(array , "blue")) ) |
| | | { |
| | | log_nrml("turn blue led '%s'\n", led_item->valuestring); |
| | | } |
| | | } |
| | | } |
| | | } |
| | | else |
| | | { |
| | | log_nrml("%s (null)\n", message->topic); |
| | | value = cJSON_Print(item); |
| | | |
| | | /* light controled by relay */ |
| | | if( !strcasecmp(item->string, "light") ) |
| | | { |
| | | if( strcasestr(value, "on") ) |
| | | { |
| | | log_nrml("Turn light on\n"); |
| | | } |
| | | else if( strcasestr(value, "off") ) |
| | | { |
| | | log_nrml("Turn light off\n"); |
| | | } |
| | | } |
| | | |
| | | /* buzzer */ |
| | | if( !strcasecmp(item->string, "buzzer") ) |
| | | { |
| | | if( strcasestr(value, "on") ) |
| | | { |
| | | log_nrml("Turn buzzer on\n"); |
| | | } |
| | | else if( strcasestr(value, "music") ) |
| | | { |
| | | log_nrml("Turn buzzer play music\n"); |
| | | } |
| | | } |
| | | |
| | | free(value); /* must free it, or it will result memory leak */ |
| | | } |
| | | } |
| | | |
| | | } |
| | | |
| | | void sub_message_callback(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *message) |
| | | { |
| | | cJSON *root = NULL; |
| | | char *out; |
| | | |
| | | |
| | | if ( !message->payloadlen ) |
| | | { |
| | | log_err("%s (null)\n", message->topic); |
| | | return ; |
| | | } |
| | | |
| | | log_nrml("Subscriber receive message: '%s'\n", message->payload); |
| | | |
| | | root = cJSON_Parse(message->payload); |
| | | if( !root ) |
| | | { |
| | | log_err("cJSON_Parse parser failure: %s\n", cJSON_GetErrorPtr()); |
| | | return ; |
| | | } |
| | | |
| | | proc_json_items(root); |
| | | |
| | | cJSON_Delete(root); /* must delete it, or it will result memory leak */ |
| | | return ; |
| | | } |
| | | |
| | | |
| | |
| | | return NULL; |
| | | } |
| | | |
| | | /* set connnect to broker username and password */ |
| | | if( strlen(ctx->uid)> 0 && strlen(ctx->pwd)> 0 ) |
| | | mosquitto_username_pw_set(mosq, ctx->uid, ctx->pwd); |
| | | |
| | | /* set callback functions */ |
| | | mosquitto_connect_callback_set(mosq, sub_connect_callback); |
| | | mosquitto_disconnect_callback_set(mosq, sub_disconnect_callback); |
| | | mosquitto_message_callback_set(mosq, sub_message_callback); |
| | | |
| | | |
| | | while( !g_signal.stop ) |
| | | { |
| | | /* connect to MQTT broker */ |
| | | if( mosquitto_connect(mosq, ctx->host, ctx->port, ctx->keepalive) ) |
| | | { |
| | | log_err("Subscriber connect to broker[%s:%d] failure: %s\n", ctx->host, ctx->port, strerror(errno)); |