/*********************************************************************************
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* Copyright: (C) 2019 LingYun IoT System Studio
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* All rights reserved.
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*
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* Filename: main.c
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* Description: This file
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*
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* Version: 1.0.0(29/01/19)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "29/01/19 15:34:41"
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*
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********************************************************************************/
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <libgen.h>
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#include <string.h>
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#include <cjson/cJSON.h>
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#include <mosquitto.h>
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#include "lylib/util_time.h"
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#include "lylib/logger.h"
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#include "lylib/util_proc.h"
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#include "hal/hal.h"
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#include "etc/conf.h"
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#define PROG_VERSION "v1.0.0"
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#define DAEMON_PIDFILE "/tmp/.lightd.pid"
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int check_set_program_running(int daemon);
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void *mqtt_sub_worker(void *args);
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static void program_usage(char *progname)
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{
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printf("Usage: %s [OPTION]...\n", progname);
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printf(" %s is LingYun studio MQTT daemon program running on RaspberryPi\n", progname);
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printf("\nMandatory arguments to long options are mandatory for short options too:\n");
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printf(" -d[debug ] Running in debug mode\n");
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printf(" -c[conf ] Specify configure file\n");
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printf(" -h[help ] Display this help information\n");
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printf(" -v[version ] Display the program version\n");
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printf("\n%s version %s\n", progname, PROG_VERSION);
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return;
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}
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void auto_light_off(int signum)
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{
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log_nrml("turn hallway auto light off now\n");
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turn_light(LIGHT_HALLWAY, OFF);
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}
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int main (int argc, char **argv)
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{
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float temp;
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float rh;
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int daemon = 1;
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pthread_t tid;
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lightd_ctx_t ctx;
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hal_ctx_t *hal_ctx = &ctx.hal_ctx;
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char *conf_file="/etc/lightd.conf";
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int debug = 0;
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int opt;
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char *progname=NULL;
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double lux = 0.0;
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struct option long_options[] = {
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{"conf", required_argument, NULL, 'c'},
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{"debug", no_argument, NULL, 'd'},
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{"version", no_argument, NULL, 'v'},
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{"help", no_argument, NULL, 'h'},
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{NULL, 0, NULL, 0}
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};
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progname = (char *)basename(argv[0]);
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/* Parser the command line parameters */
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while ((opt = getopt_long(argc, argv, "c:dvh", long_options, NULL)) != -1)
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{
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switch (opt)
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{
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case 'c': /* Set configure file */
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conf_file = optarg;
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break;
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case 'd': /* Set debug running */
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daemon = 0;
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debug = 1;
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break;
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case 'v': /* Get software version */
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printf("%s version %s\n", progname, PROG_VERSION);
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return 0;
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case 'h': /* Get help information */
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program_usage(progname);
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return 0;
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default:
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break;
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}
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}
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if( !conf_file )
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debug = 1;
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//printf("conf_file: %s debug:%d\n", conf_file, debug);
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if( parser_conf(conf_file, &ctx, debug)<0 )
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{
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fprintf(stderr, "Parser mqtted configure file failure\n");
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return -2;
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}
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if( hal_init(hal_ctx) < 0 )
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{
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log_err("Initialise hardware failure\n");
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return -3;
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}
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else
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{
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log_nrml("HAL initialise ok\n");
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}
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install_default_signal();
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signal(SIGALRM, auto_light_off);
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if( check_set_program_running(daemon) < 0 )
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goto OUT;
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mosquitto_lib_init();
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if( thread_start(&tid, mqtt_sub_worker, &ctx ) < 0 )
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{
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log_fatal("Start MQTT subsciber worker thread failure\n");
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goto OUT;
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}
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log_nrml("Start MQTT subsciber worker thread ok\n");
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log_nrml("Start infrared monitor thread working...\n");
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while( ! g_signal.stop )
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{
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if( infrared_detect() )
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{
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log_nrml("Someone incoming detected by infrared\n");
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turn_light(LIGHT_HALLWAY, ON);
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alarm(hal_ctx->light_intval);
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}
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}
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OUT:
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mosquitto_lib_cleanup();
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hal_term(hal_ctx);
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logger_term();
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return 0;
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} /* ----- End of main() ----- */
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int check_set_program_running(int daemon)
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{
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if( check_daemon_running(DAEMON_PIDFILE) )
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{
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log_err("Program already running, process exit now");
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return -1;
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}
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if( daemon )
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{
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if( set_daemon_running(DAEMON_PIDFILE) < 0 )
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{
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log_err("set program running as daemon failure\n");
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return -2;
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}
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}
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else
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{
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if( record_daemon_pid(DAEMON_PIDFILE) < 0 )
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{
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log_err("record program running PID failure\n");
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return -3;
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}
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}
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return 0;
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}
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void sub_connect_callback(struct mosquitto *mosq, void *userdata, int result)
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{
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lightd_ctx_t *ctx = (lightd_ctx_t *)userdata;
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if( result )
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{
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log_err("Subscriber connect to broker server failed, rv=%d\n", result);
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return ;
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}
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log_nrml("Subscriber connect to broker server[%s:%d] successfully\n", ctx->mqtt_ctx.host, ctx->mqtt_ctx.port);
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mosquitto_subscribe(mosq, NULL, ctx->mqtt_ctx.subTopic, ctx->mqtt_ctx.subQos);
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}
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void sub_disconnect_callback(struct mosquitto *mosq, void *userdata, int result)
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{
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lightd_ctx_t *ctx = (lightd_ctx_t *)userdata;
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log_warn("Subscriber disconnect to broker server[%s:%d], reason=%d\n",
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ctx->mqtt_ctx.host, ctx->mqtt_ctx.port, result);
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}
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void proc_json_items(cJSON *root)
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{
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int i;
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char *value;
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cJSON *item;
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cJSON *array;
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if( !root )
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{
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log_err("Invalid input arguments $root\n");
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return ;
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}
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for( i=0; i<cJSON_GetArraySize(root); i++ )
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{
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item = cJSON_GetArrayItem(root, i);
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if( !item )
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break;
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/* if item is cJSON_Object, then recursive call proc_json */
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if( cJSON_Object == item->type )
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{
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proc_json_items(item);
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}
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else if( cJSON_Array != item->type )
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{
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value = cJSON_Print(item);
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/* light controled by relay */
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if( !strcasecmp(item->string, "hallway") )
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{
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if( strcasestr(value, "on") )
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{
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turn_light(LIGHT_HALLWAY, ON);
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log_nrml("Turn on hallway light\n");
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}
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else if( strcasestr(value, "off") )
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{
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turn_light(LIGHT_HALLWAY, OFF);
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log_nrml("Turn off hallway light\n");
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}
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}
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else if( !strcasecmp(item->string, "livroom_left") )
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{
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if( strcasestr(value, "on") )
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{
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turn_light(LIGHT_LVROOM_LEFT, ON);
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log_nrml("Turn on livingroom left light\n");
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}
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else if( strcasestr(value, "off") )
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{
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turn_light(LIGHT_LVROOM_LEFT, OFF);
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log_nrml("Turn off livingroom left light\n");
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}
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}
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if( !strcasecmp(item->string, "livroom_right") )
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{
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if( strcasestr(value, "on") )
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{
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turn_light(LIGHT_LVROOM_RIGHT, ON);
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log_nrml("Turn on livingroom right light\n");
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}
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else if( strcasestr(value, "off") )
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{
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turn_light(LIGHT_LVROOM_RIGHT, OFF);
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log_nrml("Turn on livingroom right light\n");
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}
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}
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free(value); /* must free it, or it will result memory leak */
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}
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}
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}
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void sub_message_callback(struct mosquitto *mosq, void *userdata, const struct mosquitto_message *message)
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{
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lightd_ctx_t *ctx = (lightd_ctx_t *)userdata;
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cJSON *root = NULL;
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cJSON *item;
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char *value;
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if ( !message->payloadlen )
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{
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log_err("%s (null)\n", message->topic);
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return ;
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}
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log_dbg("Subscriber receive message: '%s'\n", message->payload);
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root = cJSON_Parse(message->payload);
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if( !root )
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{
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log_err("cJSON_Parse parser failure: %s\n", cJSON_GetErrorPtr());
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return ;
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}
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/* check ID matched or not */
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item = cJSON_GetObjectItem(root, "id");
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if( !item )
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{
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log_err("cJSON_Parse get ID failure: %s\n", cJSON_GetErrorPtr());
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goto OUT;
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}
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value = cJSON_PrintUnformatted(item);
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if( strcasecmp(value, ctx->mqtt_ctx.id) )
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{
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log_warn("cJSON_Parse get ID not matchs [%s<->%s], drop this message!\n", value, ctx->mqtt_ctx.id);
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free(value);
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goto OUT;
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}
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free(value);
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/* proc JSON mesage */
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proc_json_items(root);
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OUT:
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cJSON_Delete(root); /* must delete it, or it will result memory leak */
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return ;
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}
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void *mqtt_sub_worker(void *args)
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{
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struct mosquitto *mosq;
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bool session = true;
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lightd_ctx_t *ctx = (lightd_ctx_t *)args;
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mqtt_ctx_t *mqtt_ctx;
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if( !ctx )
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{
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log_err("Invalid input arguments\n");
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return NULL;
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}
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mqtt_ctx = &ctx->mqtt_ctx;
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mosq = mosquitto_new(NULL, session, ctx);
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if( !mosq )
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{
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log_err("mosquitto_new failure\n");
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return NULL;
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}
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/* set connnect to broker username and password */
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if( strlen(mqtt_ctx->uid)> 0 && strlen(mqtt_ctx->pwd)> 0 )
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mosquitto_username_pw_set(mosq, mqtt_ctx->uid, mqtt_ctx->pwd);
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/* set callback functions */
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mosquitto_connect_callback_set(mosq, sub_connect_callback);
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mosquitto_disconnect_callback_set(mosq, sub_disconnect_callback);
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mosquitto_message_callback_set(mosq, sub_message_callback);
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while( !g_signal.stop )
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{
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/* connect to MQTT broker */
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if( mosquitto_connect(mosq, mqtt_ctx->host, mqtt_ctx->port, mqtt_ctx->keepalive) )
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{
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log_err("Subscriber connect to broker[%s:%d] failure: %s\n", mqtt_ctx->host, mqtt_ctx->port, strerror(errno));
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msleep(1000);
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continue;
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}
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/* -1: use default timeout 1000ms 1: unused */
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mosquitto_loop_forever(mosq, -1, 1);
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}
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mosquitto_destroy(mosq);
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return NULL;
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}
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