433 lines
15 KiB
C
433 lines
15 KiB
C
/*
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* 这个例程适用于`Linux`这类支持pthread的POSIX设备, 它演示了......
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*
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* 需要用户关注或修改的部分, 已经用 TODO 在注释中标明
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <pthread.h>
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#include "aiot_state_api.h"
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#include "aiot_sysdep_api.h"
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#include "aiot_mqtt_api.h"
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#include "aiot_subdev_api.h"
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/* 位于portfiles/aiot_port文件夹下的系统适配函数集合 */
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extern aiot_sysdep_portfile_t g_aiot_sysdep_portfile;
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/* 位于external/ali_ca_cert.c中的服务器证书 */
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extern const char *ali_ca_cert;
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static pthread_t g_mqtt_process_thread;
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static pthread_t g_mqtt_recv_thread;
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static uint8_t g_mqtt_process_thread_running = 0;
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static uint8_t g_mqtt_recv_thread_running = 0;
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aiot_subdev_dev_t g_subdev[] = {
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{
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"a13FN5TplKq",
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"subdev_basic_demo_01",
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"768XBgQwgOakz3K4uhOiLeeh9xjJQx6h",
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"y7GSILD480lBSsP8"
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},
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{
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"a13FN5TplKq",
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"subdev_basic_demo_02",
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"iwTZrbjbgNVChfuJkihjE5asekoyKoYv",
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"y7GSILD480lBSsP8"
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},
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{
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"a13FN5TplKq",
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"subdev_basic_demo_03",
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"fdutq35iKMYdcWWBuIINY26hsNhgFXWE",
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"y7GSILD480lBSsP8"
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},
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{
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"a13FN5TplKq",
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"subdev_basic_demo_04",
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"HCKv50YqgwdKhy5cE0Vz4aydmK2ojPvr",
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"y7GSILD480lBSsP8"
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}
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};
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/* TODO: 如果要关闭日志, 就把这个函数实现为空, 如果要减少日志, 可根据code选择不打印
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*
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* 例如: [1577589489.033][LK-0317] subdev_basic_demo&a13FN5TplKq
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*
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* 上面这条日志的code就是0317(十六进制), code值的定义见core/aiot_state_api.h
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*
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*/
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/* 日志回调函数, SDK的日志会从这里输出 */
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static int32_t demo_state_logcb(int32_t code, char *message)
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{
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printf("%s", message);
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return 0;
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}
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/* MQTT事件回调函数, 当网络连接/重连/断开时被触发, 事件定义见core/aiot_mqtt_api.h */
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void demo_mqtt_event_handler(void *handle, const aiot_mqtt_event_t *event, void *userdata)
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{
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switch (event->type) {
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/* SDK因为用户调用了aiot_mqtt_connect()接口, 与mqtt服务器建立连接已成功 */
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case AIOT_MQTTEVT_CONNECT: {
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printf("AIOT_MQTTEVT_CONNECT\n");
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/* TODO: 处理SDK建连成功, 不可以在这里调用耗时较长的阻塞函数 */
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}
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break;
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/* SDK因为网络状况被动断连后, 自动发起重连已成功 */
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case AIOT_MQTTEVT_RECONNECT: {
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printf("AIOT_MQTTEVT_RECONNECT\n");
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/* TODO: 处理SDK重连成功, 不可以在这里调用耗时较长的阻塞函数 */
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}
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break;
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/* SDK因为网络的状况而被动断开了连接, network是底层读写失败, heartbeat是没有按预期得到服务端心跳应答 */
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case AIOT_MQTTEVT_DISCONNECT: {
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char *cause = (event->data.disconnect == AIOT_MQTTDISCONNEVT_NETWORK_DISCONNECT) ? ("network disconnect") :
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("heartbeat disconnect");
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printf("AIOT_MQTTEVT_DISCONNECT: %s\n", cause);
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/* TODO: 处理SDK被动断连, 不可以在这里调用耗时较长的阻塞函数 */
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}
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break;
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default: {
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}
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}
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}
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/* MQTT默认消息处理回调, 当SDK从服务器收到MQTT消息时, 且无对应用户回调处理时被调用 */
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void demo_mqtt_default_recv_handler(void *handle, const aiot_mqtt_recv_t *packet, void *userdata)
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{
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switch (packet->type) {
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case AIOT_MQTTRECV_HEARTBEAT_RESPONSE: {
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printf("heartbeat response\n");
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/* TODO: 处理服务器对心跳的回应, 一般不处理 */
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}
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break;
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case AIOT_MQTTRECV_SUB_ACK: {
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printf("suback, res: -0x%04X, packet id: %d, max qos: %d\n",
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-packet->data.sub_ack.res, packet->data.sub_ack.packet_id, packet->data.sub_ack.max_qos);
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/* TODO: 处理服务器对订阅请求的回应, 一般不处理 */
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}
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break;
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case AIOT_MQTTRECV_PUB: {
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printf("pub, qos: %d, topic: %.*s\n", packet->data.pub.qos, packet->data.pub.topic_len, packet->data.pub.topic);
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printf("pub, payload: %.*s\n", packet->data.pub.payload_len, packet->data.pub.payload);
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/* TODO: 处理服务器下发的业务报文 */
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}
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break;
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case AIOT_MQTTRECV_PUB_ACK: {
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printf("puback, packet id: %d\n", packet->data.pub_ack.packet_id);
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/* TODO: 处理服务器对QoS1上报消息的回应, 一般不处理 */
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}
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break;
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default: {
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}
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}
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}
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/* 执行aiot_mqtt_process的线程, 包含心跳发送和QoS1消息重发 */
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void *demo_mqtt_process_thread(void *args)
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{
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int32_t res = STATE_SUCCESS;
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while (g_mqtt_process_thread_running) {
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res = aiot_mqtt_process(args);
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if (res == STATE_USER_INPUT_EXEC_DISABLED) {
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break;
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}
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sleep(1);
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}
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return NULL;
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}
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/* 执行aiot_mqtt_recv的线程, 包含网络自动重连和从服务器收取MQTT消息 */
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void *demo_mqtt_recv_thread(void *args)
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{
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int32_t res = STATE_SUCCESS;
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while (g_mqtt_recv_thread_running) {
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res = aiot_mqtt_recv(args);
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if (res < STATE_SUCCESS) {
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if (res == STATE_USER_INPUT_EXEC_DISABLED) {
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break;
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}
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sleep(1);
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}
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}
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return NULL;
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}
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int32_t demo_mqtt_start(void **handle)
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{
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int32_t res = STATE_SUCCESS;
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void *mqtt_handle = NULL;
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char *url = "iot-as-mqtt.cn-shanghai.aliyuncs.com"; /* 阿里云平台上海站点的域名后缀 */
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char host[100] = {0}; /* 用这个数组拼接设备连接的云平台站点全地址, 规则是 ${productKey}.iot-as-mqtt.cn-shanghai.aliyuncs.com */
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uint16_t port = 443; /* 无论设备是否使用TLS连接阿里云平台, 目的端口都是443 */
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aiot_sysdep_network_cred_t cred; /* 安全凭据结构体, 如果要用TLS, 这个结构体中配置CA证书等参数 */
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/* TODO: 替换为自己设备的三元组 */
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char *product_key = "a1Zv737gW43";
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char *device_name = "EC200U_QUECTEL_01";
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char *device_secret = "05e47a1c7f55b2d828b16733dd6457dd";
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/* 创建SDK的安全凭据, 用于建立TLS连接 */
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memset(&cred, 0, sizeof(aiot_sysdep_network_cred_t));
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cred.option = AIOT_SYSDEP_NETWORK_CRED_SVRCERT_CA; /* 使用RSA证书校验MQTT服务端 */
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cred.max_tls_fragment = 16384; /* 最大的分片长度为16K, 其它可选值还有4K, 2K, 1K, 0.5K */
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cred.sni_enabled = 1; /* TLS建连时, 支持Server Name Indicator */
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cred.x509_server_cert = ali_ca_cert; /* 用来验证MQTT服务端的RSA根证书 */
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cred.x509_server_cert_len = strlen(ali_ca_cert); /* 用来验证MQTT服务端的RSA根证书长度 */
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/* 创建1个MQTT客户端实例并内部初始化默认参数 */
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mqtt_handle = aiot_mqtt_init();
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if (mqtt_handle == NULL) {
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printf("aiot_mqtt_init failed\n");
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return -1;
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}
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/* TODO: 如果以下代码不被注释, 则例程会用TCP而不是TLS连接云平台 */
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/*
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{
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memset(&cred, 0, sizeof(aiot_sysdep_network_cred_t));
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cred.option = AIOT_SYSDEP_NETWORK_CRED_NONE;
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}
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*/
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snprintf(host, 100, "%s.%s", product_key, url);
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/* 配置MQTT服务器地址 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_HOST, (void *)host);
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/* 配置MQTT服务器端口 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_PORT, (void *)&port);
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/* 配置设备productKey */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_PRODUCT_KEY, (void *)product_key);
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/* 配置设备deviceName */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_DEVICE_NAME, (void *)device_name);
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/* 配置设备deviceSecret */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_DEVICE_SECRET, (void *)device_secret);
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/* 配置网络连接的安全凭据, 上面已经创建好了 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_NETWORK_CRED, (void *)&cred);
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/* 配置MQTT默认消息接收回调函数 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_RECV_HANDLER, (void *)demo_mqtt_default_recv_handler);
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/* 配置MQTT事件回调函数 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_EVENT_HANDLER, (void *)demo_mqtt_event_handler);
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/* 与服务器建立MQTT连接 */
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res = aiot_mqtt_connect(mqtt_handle);
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if (res < STATE_SUCCESS) {
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/* 尝试建立连接失败, 销毁MQTT实例, 回收资源 */
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aiot_mqtt_deinit(&mqtt_handle);
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printf("aiot_mqtt_connect failed: -0x%04X\n", -res);
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return -1;
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}
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/* 创建一个单独的线程, 专用于执行aiot_mqtt_process, 它会自动发送心跳保活, 以及重发QoS1的未应答报文 */
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g_mqtt_process_thread_running = 1;
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res = pthread_create(&g_mqtt_process_thread, NULL, demo_mqtt_process_thread, mqtt_handle);
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if (res < 0) {
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printf("pthread_create demo_mqtt_process_thread failed: %d\n", res);
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aiot_mqtt_deinit(&mqtt_handle);
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return -1;
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}
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/* 创建一个单独的线程用于执行aiot_mqtt_recv, 它会循环收取服务器下发的MQTT消息, 并在断线时自动重连 */
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g_mqtt_recv_thread_running = 1;
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res = pthread_create(&g_mqtt_recv_thread, NULL, demo_mqtt_recv_thread, mqtt_handle);
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if (res < 0) {
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printf("pthread_create demo_mqtt_recv_thread failed: %d\n", res);
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g_mqtt_process_thread_running = 0;
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pthread_join(g_mqtt_process_thread, NULL);
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aiot_mqtt_deinit(&mqtt_handle);
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return -1;
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}
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*handle = mqtt_handle;
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return 0;
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}
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int32_t demo_mqtt_stop(void **handle)
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{
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int32_t res = STATE_SUCCESS;
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void *mqtt_handle = NULL;
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mqtt_handle = *handle;
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g_mqtt_process_thread_running = 0;
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g_mqtt_recv_thread_running = 0;
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pthread_join(g_mqtt_process_thread, NULL);
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pthread_join(g_mqtt_recv_thread, NULL);
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/* 断开MQTT连接 */
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res = aiot_mqtt_disconnect(mqtt_handle);
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if (res < STATE_SUCCESS) {
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aiot_mqtt_deinit(&mqtt_handle);
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printf("aiot_mqtt_disconnect failed: -0x%04X\n", -res);
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return -1;
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}
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/* 销毁MQTT实例 */
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res = aiot_mqtt_deinit(&mqtt_handle);
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if (res < STATE_SUCCESS) {
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printf("aiot_mqtt_deinit failed: -0x%04X\n", -res);
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return -1;
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}
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return 0;
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}
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void demo_subdev_recv_handler(void *handle, const aiot_subdev_recv_t *packet, void *user_data)
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{
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switch (packet->type) {
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case AIOT_SUBDEVRECV_TOPO_ADD_REPLY:
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case AIOT_SUBDEVRECV_TOPO_DELETE_REPLY:
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case AIOT_SUBDEVRECV_TOPO_GET_REPLY:
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case AIOT_SUBDEVRECV_BATCH_LOGIN_REPLY:
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case AIOT_SUBDEVRECV_BATCH_LOGOUT_REPLY:
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case AIOT_SUBDEVRECV_SUB_REGISTER_REPLY:
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case AIOT_SUBDEVRECV_PRODUCT_REGISTER_REPLY: {
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printf("msgid : %d\n", packet->data.generic_reply.msg_id);
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printf("code : %d\n", packet->data.generic_reply.code);
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printf("product key : %s\n", packet->data.generic_reply.product_key);
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printf("device name : %s\n", packet->data.generic_reply.device_name);
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printf("message : %s\n", (packet->data.generic_reply.message == NULL)?("NULL"):(packet->data.generic_reply.message));
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printf("data : %s\n", packet->data.generic_reply.data);
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}
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break;
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case AIOT_SUBDEVRECV_TOPO_CHANGE_NOTIFY: {
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printf("msgid : %d\n", packet->data.generic_notify.msg_id);
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printf("product key : %s\n", packet->data.generic_notify.product_key);
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printf("device name : %s\n", packet->data.generic_notify.device_name);
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printf("params : %s\n", packet->data.generic_notify.params);
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}
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break;
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default: {
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}
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}
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}
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int main(int argc, char *argv[])
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{
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int32_t res = STATE_SUCCESS;
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void *mqtt_handle = NULL, *subdev_handle = NULL;
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/* 配置SDK的底层依赖 */
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aiot_sysdep_set_portfile(&g_aiot_sysdep_portfile);
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/* 配置SDK的日志输出 */
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aiot_state_set_logcb(demo_state_logcb);
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res = demo_mqtt_start(&mqtt_handle);
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if (res < 0) {
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printf("demo_mqtt_start failed\n");
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return -1;
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}
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subdev_handle = aiot_subdev_init();
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if (subdev_handle == NULL) {
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printf("aiot_subdev_init failed\n");
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demo_mqtt_stop(&mqtt_handle);
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return -1;
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}
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aiot_subdev_setopt(subdev_handle, AIOT_SUBDEVOPT_MQTT_HANDLE, mqtt_handle);
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aiot_subdev_setopt(subdev_handle, AIOT_SUBDEVOPT_RECV_HANDLER, demo_subdev_recv_handler);
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res = aiot_subdev_send_topo_add(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
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if (res < STATE_SUCCESS) {
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printf("aiot_subdev_send_topo_add failed, res: -0x%04X\n", -res);
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aiot_subdev_deinit(&subdev_handle);
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demo_mqtt_stop(&mqtt_handle);
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return -1;
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}
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sleep(2);
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// aiot_subdev_send_topo_delete(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
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// if (res < STATE_SUCCESS) {
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// printf("aiot_subdev_send_topo_delete failed, res: -0x%04X\n", -res);
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// aiot_subdev_deinit(&subdev_handle);
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// demo_mqtt_stop(&mqtt_handle);
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// return -1;
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// }
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// sleep(2);
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// aiot_subdev_send_topo_get(subdev_handle);
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// if (res < STATE_SUCCESS) {
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// printf("aiot_subdev_send_topo_get failed, res: -0x%04X\n", -res);
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// aiot_subdev_deinit(&subdev_handle);
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// demo_mqtt_stop(&mqtt_handle);
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// return -1;
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// }
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// sleep(2);
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// aiot_subdev_send_sub_register(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
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// if (res < STATE_SUCCESS) {
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// printf("aiot_subdev_send_sub_register failed, res: -0x%04X\n", -res);
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// aiot_subdev_deinit(&subdev_handle);
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// demo_mqtt_stop(&mqtt_handle);
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// return -1;
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// }
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// sleep(2);
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// aiot_subdev_send_product_register(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
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// if (res < STATE_SUCCESS) {
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// printf("aiot_subdev_send_product_register failed, res: -0x%04X\n", -res);
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// aiot_subdev_deinit(&subdev_handle);
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// demo_mqtt_stop(&mqtt_handle);
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// return -1;
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// }
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// sleep(2);
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aiot_subdev_send_batch_login(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
|
|
if (res < STATE_SUCCESS) {
|
|
printf("aiot_subdev_send_batch_login failed, res: -0x%04X\n", -res);
|
|
aiot_subdev_deinit(&subdev_handle);
|
|
demo_mqtt_stop(&mqtt_handle);
|
|
return -1;
|
|
}
|
|
|
|
sleep(2);
|
|
|
|
// aiot_subdev_send_batch_logout(subdev_handle, g_subdev, sizeof(g_subdev)/sizeof(aiot_subdev_dev_t));
|
|
// if (res < STATE_SUCCESS) {
|
|
// printf("aiot_subdev_send_batch_logout failed, res: -0x%04X\n", -res);
|
|
// aiot_subdev_deinit(&subdev_handle);
|
|
// demo_mqtt_stop(&mqtt_handle);
|
|
// return -1;
|
|
// }
|
|
|
|
while(1) {
|
|
sleep(1);
|
|
}
|
|
|
|
res = aiot_subdev_deinit(&subdev_handle);
|
|
if (res < STATE_SUCCESS) {
|
|
printf("aiot_subdev_deinit failed: -0x%04X\n", res);
|
|
}
|
|
|
|
res = demo_mqtt_stop(&mqtt_handle);
|
|
if (res < 0) {
|
|
printf("demo_start_stop failed\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|