386 lines
14 KiB
C
386 lines
14 KiB
C
/*
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* 这个例程适用于`RTOS`这类支持Task的设备, 它演示了用SDK配置MQTT参数并建立连接, 之后创建2个线程
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*
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* + 一个线程用于保活长连接
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* + 一个线程用于接收消息, 并在有消息到达时进入默认的数据回调, 在连接状态变化时进入事件回调
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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 "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 "ali_demo.h"
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#include "ql_api_osi.h"
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#include "ql_api_nw.h"
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#include "ali_demo.h"
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#include "ql_log.h"
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#include "ql_api_datacall.h"
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#include "sockets.h"
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#include "lwip/ip_addr.h"
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#include "lwip/ip6_addr.h"
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#include "lwip/netdb.h"
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#include "lwip/netif.h"
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#include "lwip/inet.h"
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#include "lwip/tcp.h"
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#define QL_SOCKET_LOG_LEVEL QL_LOG_LEVEL_INFO
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#define uart_printf(msg, ...) QL_LOG(QL_SOCKET_LOG_LEVEL, "linkSDK ", msg, ##__VA_ARGS__)
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#define mqtt_broadcast_profile_idx 1
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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 ql_task_t ql_alisdk_mqtt_broadcast_task_ref;
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static ql_task_t ql_alisdk_mqtt_broadcast_process_task_ref;
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static ql_task_t ql_alisdk_mqtt_broadcast_recv_task_ref;
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static uint8_t g_mqtt_broadcast_process_task_running = 0;
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static uint8_t g_mqtt_broadcast_recv_task_running = 0;
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static int datacall_satrt(void)
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{
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int ret = 0;
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int i = 0;
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ql_data_call_info_s info;
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char ip4_addr_str[16] = {0};
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uint8_t nSim = 0;
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ql_rtos_task_sleep_s(10);
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uart_printf("========== socket demo start ==========");
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uart_printf("wait for network register done");
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while ((ret = ql_network_register_wait(nSim, 120)) != 0 && i < 10)
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{
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i++;
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ql_rtos_task_sleep_s(1);
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}
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if (ret == 0)
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{
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i = 0;
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uart_printf("====network registered!!!!====");
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}
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else
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{
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uart_printf("====network register failure!!!!!====");
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goto exit;
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}
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ql_set_data_call_asyn_mode(nSim, mqtt_broadcast_profile_idx, 0);
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uart_printf("===start data call====");
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ret = ql_start_data_call(nSim, mqtt_broadcast_profile_idx, QL_PDP_TYPE_IP, "uninet", NULL, NULL, 0);
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uart_printf("===data call result:%d", ret);
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if (ret != 0)
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{
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uart_printf("====data call failure!!!!=====");
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}
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memset(&info, 0x00, sizeof(ql_data_call_info_s));
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ret = ql_get_data_call_info(nSim, mqtt_broadcast_profile_idx, &info);
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if (ret != 0)
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{
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uart_printf("ql_get_data_call_info ret: %d", ret);
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ql_stop_data_call(nSim, mqtt_broadcast_profile_idx);
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goto exit;
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}
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uart_printf("info->mqtt_profile_idx: %d", info.profile_idx);
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uart_printf("info->ip_version: %d", info.ip_version);
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uart_printf("info->v4.state: %d", info.v4.state);
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inet_ntop(AF_INET, &info.v4.addr.ip, ip4_addr_str, sizeof(ip4_addr_str));
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uart_printf("info.v4.addr.ip: %s\r\n", ip4_addr_str);
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inet_ntop(AF_INET, &info.v4.addr.pri_dns, ip4_addr_str, sizeof(ip4_addr_str));
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uart_printf("info.v4.addr.pri_dns: %s\r\n", ip4_addr_str);
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inet_ntop(AF_INET, &info.v4.addr.sec_dns, ip4_addr_str, sizeof(ip4_addr_str));
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uart_printf("info.v4.addr.sec_dns: %s\r\n", ip4_addr_str);
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return 0;
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exit:
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return -1;
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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] mqtt_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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uart_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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static 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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uart_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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uart_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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uart_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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static 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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uart_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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uart_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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uart_printf("pub, qos: %d, topic: %d %s\n", packet->data.pub.qos, packet->data.pub.topic_len, packet->data.pub.topic);
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uart_printf("pub, payload: %d %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, 此处打印broadcast的报文 */
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/* 值得注意的是，云端下发的广播topic格式为 /sys/${product_key}/${device_name}/broadcast/request/+ */
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}
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break;
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case AIOT_MQTTRECV_PUB_ACK: {
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uart_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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static 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_broadcast_process_task_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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ql_rtos_task_sleep_s(1);
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}
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return ;
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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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static 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_broadcast_recv_task_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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ql_rtos_task_sleep_s(1);
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}
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}
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return ;
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}
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static void ql_alisdk_mqtt_broadcast_task(void *arg)
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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 = "a1TSu2F29co";
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char *device_name = "000001";
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char *device_secret = "bd220c3a9c6a5b3f5921485d091497e1";
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int time_delay_ms = 5000;
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int pdp = mqtt_broadcast_profile_idx;
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/*执行拨号操作，设备联网*/
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if(datacall_satrt() != 0)
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goto exit;
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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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/* 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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uart_printf("aiot_mqtt_init failed\n");
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goto exit;
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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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/* 配置MQTT连接超时时间 */
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_CONNECT_TIMEOUT_MS, (void *)&time_delay_ms);
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/* 配置拨号profile_idx信息(quectel平台必须执行此操作)*/
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aiot_mqtt_setopt(mqtt_handle, AIOT_MQTTOPT_PROFILE_IDX, (void *)&pdp);
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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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uart_printf("aiot_mqtt_connect failed: -0x%04X\n", -res);
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goto exit;
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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_broadcast_process_task_running = 1;
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res = ql_rtos_task_create(&ql_alisdk_mqtt_broadcast_recv_task_ref, 24576, 24, "client_task", demo_mqtt_process_thread, (void *)mqtt_handle, 5);
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if (res < 0) {
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uart_printf("pthread_create demo_mqtt_process_thread failed: %d\n", res);
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goto exit;
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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_broadcast_recv_task_running = 1;
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res = ql_rtos_task_create(&ql_alisdk_mqtt_broadcast_recv_task_ref, 24576, 25, "recv_test", demo_mqtt_recv_thread, (void *)mqtt_handle, 5);
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if (res < 0) {
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uart_printf("pthread_create demo_mqtt_recv_thread failed: %d\n", res);
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goto exit;
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}
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/* 主循环进入休眠 */
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while (1) {
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ql_rtos_task_sleep_s(1);
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}
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/* 断开MQTT连接, 一般不会运行到这里 */
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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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uart_printf("aiot_mqtt_disconnect failed: -0x%04X\n", -res);
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goto exit;
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}
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/* 销毁MQTT实例, 一般不会运行到这里 */
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res = aiot_mqtt_deinit(&mqtt_handle);
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if (res < STATE_SUCCESS) {
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uart_printf("aiot_mqtt_deinit failed: -0x%04X\n", -res);
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goto exit;
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}
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g_mqtt_broadcast_process_task_running = 0;
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g_mqtt_broadcast_recv_task_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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ql_rtos_task_delete(ql_alisdk_mqtt_broadcast_process_task_ref);
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ql_rtos_task_delete(ql_alisdk_mqtt_broadcast_recv_task_ref);
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return;
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exit:
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ql_rtos_task_delete(NULL);
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}
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#define QL_ALI_TASK_STACK_SIZE 10240
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#define QL_ALI_TASK_PRIO APP_PRIORITY_NORMAL
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#define QL_ALI_TASK_EVENT_CNT 5
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int ql_ali_sdk_mqtt_broadcast_test_init(void)
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{
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QlOSStatus status;
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int count = 0;
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/* 主循环进入休眠 */
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while (count < 10)
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{
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count++;
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ql_rtos_task_sleep_s(1);
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uart_printf("ql_ali_sdk_mqtt_client_test_init -0x%04X\n", count);
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}
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status =ql_rtos_task_create(&ql_alisdk_mqtt_broadcast_task_ref, QL_ALI_TASK_STACK_SIZE, APP_PRIORITY_NORMAL, "broad_task", ql_alisdk_mqtt_broadcast_task, NULL, QL_ALI_TASK_EVENT_CNT);
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if (status != QL_OSI_SUCCESS)
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{
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uart_printf("ql_ali_sdk_mqtt_broadcast_test_init error");
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||
return -1;
|
||
}
|
||
return 0;
|
||
}
|
||
|