From b5bf869dfb976503ec146d79b588eeff61f13e50 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Tue, 20 Apr 2021 23:55:07 +0800
Subject: [PATCH] Add mqtt folder in iotd

---
 iotd/main.c |  277 ++++++------------------------------------------------
 1 files changed, 34 insertions(+), 243 deletions(-)

diff --git a/iotd/main.c b/iotd/main.c
index f504b8f..e7833ff 100644
--- a/iotd/main.c
+++ b/iotd/main.c
@@ -26,17 +26,14 @@
 #include "lylib/util_proc.h"
 #include "hal/hal.h"
 #include "conf/conf.h"
+#include "mqtt/mqtt.h"
 
 #define PROG_VERSION               "v1.0.0"
 #define DAEMON_PIDFILE             "/tmp/.iotd.pid"
 
 
-int check_set_program_running(int daemon);
-void *mqtt_sub_worker(void *args);
-
 static void program_usage(char *progname)
 {
-    
     printf("Usage: %s [OPTION]...\n", progname);
     printf(" %s is LingYun studio MQTT daemon program running on RaspberryPi\n", progname);
 
@@ -48,12 +45,6 @@
 
     printf("\n%s version %s\n", progname, PROG_VERSION);
     return;
-}
-
-void auto_light_off(int signum)
-{
-    log_nrml("turn hallway auto light off now\n");
-    //turn_light(LIGHT_HALLWAY, OFF);
 }
 
 int main (int argc, char **argv)
@@ -133,19 +124,46 @@
     }
 
     install_default_signal();
-    signal(SIGALRM, auto_light_off);
 
-    if( check_set_program_running(daemon) < 0 ) 
+    if( check_set_program_running(daemon, DAEMON_PIDFILE) < 0 ) 
         goto OUT;
 
     mosquitto_lib_init();
 
-    if( thread_start(&tid, mqtt_sub_worker, &ctx ) < 0 )
+
+    /*+--------------------------------------------+
+     *|  Start  MQTT subsciber thread if enable    |
+     *+--------------------------------------------+*/
+    if( ctx.mqtt_ctx.sub_enable ) 
     {
-        log_fatal("Start MQTT subsciber worker thread failure\n");
-        goto OUT;
+        if( thread_start(&tid, mqtt_sub_worker, &ctx ) < 0 )
+        {
+            log_fatal("Start MQTT subsciber worker thread failure\n");
+            goto OUT;
+        }
+        else 
+        {
+            log_nrml("Start MQTT subsciber worker thread ok\n"); 
+        }
     }
-    log_nrml("Start MQTT subsciber worker thread ok\n");
+
+
+    /*+--------------------------------------------+
+     *|  Start  MQTT publisher thread if enable    |
+     *+--------------------------------------------+*/
+    if( ctx.mqtt_ctx.pub_enable ) 
+    {
+        if( thread_start(&tid, mqtt_pub_worker, &ctx ) < 0 )
+        {
+            log_fatal("Start MQTT publisher worker thread failure\n");
+            goto OUT;
+        }
+        else 
+        {
+            log_nrml("Start MQTT publisher worker thread ok\n"); 
+        }
+    }
+
 
     log_nrml("Start infrared monitor thread working...\n");
     while( ! g_signal.stop )
@@ -180,231 +198,4 @@
     return 0;
 } /* ----- End of main() ----- */
 
-int check_set_program_running(int daemon)
-{
-    if( check_daemon_running(DAEMON_PIDFILE) ) 
-    {
-        log_err("Program already running, process exit now");
-        return -1;
-    }
-
-    if( daemon ) 
-    {
-        if( set_daemon_running(DAEMON_PIDFILE) < 0 )
-        {
-            log_err("set program running as daemon failure\n");
-            return -2;
-        }
-    }
-    else
-    {
-        if( record_daemon_pid(DAEMON_PIDFILE) < 0 )
-        {
-            log_err("record program running PID failure\n");
-            return -3;
-        }
-    }
-
-    return 0;
-}
-
-
-void sub_connect_callback(struct mosquitto *mosq, void *userdata, int result)
-{
-    iotd_ctx_t             *ctx = (iotd_ctx_t *)userdata;
-
-    if( result )
-    {
-        log_err("Subscriber connect to broker server failed, rv=%d\n", result);
-        return ;
-    }
-    
-    log_nrml("Subscriber connect to broker server[%s:%d] successfully\n", ctx->mqtt_ctx.host, ctx->mqtt_ctx.port); 
-    mosquitto_subscribe(mosq, NULL, ctx->mqtt_ctx.subTopic, ctx->mqtt_ctx.subQos);
-}
-
-void sub_disconnect_callback(struct mosquitto *mosq, void *userdata, int result)
-{
-    iotd_ctx_t             *ctx = (iotd_ctx_t *)userdata;
-
-    log_warn("Subscriber disconnect to broker server[%s:%d], reason=%d\n", 
-		    ctx->mqtt_ctx.host, ctx->mqtt_ctx.port, result); 
-}
-
-void proc_json_items(cJSON *root)
-{
-    int                    i;
-    char                  *value;
-    cJSON                 *item; 
-    cJSON                 *array;
-
-    if( !root )
-    {
-        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 )
-        {
-            value = cJSON_Print(item);
-
-            /* light controled by relay */
-            if( !strcasecmp(item->string, "hallway") )
-            {
-                if( strcasestr(value, "on") )
-                {
-                    //turn_light(LIGHT_HALLWAY, ON);
-                    log_nrml("Turn on hallway light\n");
-                }
-                else if( strcasestr(value, "off") )
-                {
-                    //turn_light(LIGHT_HALLWAY, OFF);
-                    log_nrml("Turn off hallway light\n");
-                }
-            }
-            else if( !strcasecmp(item->string, "livroom_left") )
-            {
-                if( strcasestr(value, "on") )
-                {
-                    //turn_light(LIGHT_LVROOM_LEFT, ON);
-                    log_nrml("Turn on livingroom left light\n");
-                }
-                else if( strcasestr(value, "off") )
-                {
-                    //turn_light(LIGHT_LVROOM_LEFT, OFF);
-                    log_nrml("Turn off livingroom left light\n");
-                }
-            }
-            if( !strcasecmp(item->string, "livroom_right") )
-            {
-                if( strcasestr(value, "on") )
-                {
-                    //turn_light(LIGHT_LVROOM_RIGHT, ON);
-                    log_nrml("Turn on livingroom right light\n");
-                }
-                else if( strcasestr(value, "off") )
-                {
-                    //turn_light(LIGHT_LVROOM_RIGHT, OFF);
-                    log_nrml("Turn off livingroom right light\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)
-{
-    iotd_ctx_t             *ctx = (iotd_ctx_t *)userdata;
-
-    cJSON                  *root = NULL;
-    cJSON                  *item;
-    char                   *value;
-
-
-    if ( !message->payloadlen )
-    {
-        log_err("%s (null)\n", message->topic);
-        return ;
-    }
-
-    log_dbg("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 ;
-    }
-
-    /* check ID matched or not */
-    item = cJSON_GetObjectItem(root, "id");
-    if( !item )
-    {
-        log_err("cJSON_Parse get ID failure: %s\n", cJSON_GetErrorPtr());
-        goto OUT;
-    }
-
-    value = cJSON_PrintUnformatted(item);
-    if( strcasecmp(value, ctx->mqtt_ctx.id) )
-    {
-        log_warn("cJSON_Parse get ID not matchs [%s<->%s], drop this message!\n", value, ctx->mqtt_ctx.id);
-        free(value);
-        goto OUT;
-    }
-    
-    free(value); 
-
-    /* proc JSON mesage */
-    proc_json_items(root); 
-
-OUT:
-    cJSON_Delete(root); /* must delete it, or it will result memory leak */
-    return ;
-}
-
-
-void *mqtt_sub_worker(void *args)
-{
-    struct mosquitto       *mosq;
-    bool                    session = true;
-
-    iotd_ctx_t             *ctx = (iotd_ctx_t *)args;
-    mqtt_ctx_t             *mqtt_ctx;
-
-    if( !ctx )
-    {
-        log_err("Invalid input arguments\n");
-	return NULL;
-    }
-
-    mqtt_ctx = &ctx->mqtt_ctx;
-
-
-    mosq = mosquitto_new(NULL, session, ctx);
-    if( !mosq )
-    {
-        log_err("mosquitto_new failure\n");
-        return NULL;
-    }
-
-    /* set connnect to broker username and password  */
-    if( strlen(mqtt_ctx->uid)> 0  && strlen(mqtt_ctx->pwd)> 0 )
-        mosquitto_username_pw_set(mosq, mqtt_ctx->uid, mqtt_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, mqtt_ctx->host, mqtt_ctx->port, mqtt_ctx->keepalive) )
-        {
-            log_err("Subscriber connect to broker[%s:%d] failure: %s\n", mqtt_ctx->host, mqtt_ctx->port, strerror(errno)); 
-            msleep(1000);
-            continue;
-        }
-
-        /* -1: use default timeout 1000ms  1: unused */
-        mosquitto_loop_forever(mosq, -1, 1);
-    }
-
-    mosquitto_destroy(mosq);
-    return NULL;
-}
 

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