/**
* @brief 初始化MQTT上下文，开发者主要替换设备ID，项目ID和API_KEY
* @param ctx:上下文变量
* @retval ret:0,成功，<0 失败
**/
static int MqttSample_Init(struct MqttSampleContext *ctx)
{
int err;
ctx->sendedbytes = 0;
ctx->proid = MQTT_DEVICE_PROJ_ID;
ctx->devid = MQTT_DEVICE_ID;
ctx->apikey = MQTT_DEVICE_API_KEY;
ctx->publish_state = 0;
err = Mqtt_InitContext(ctx->mqttctx, 1 << 8);
if(MQTTERR_NOERROR != err)
{
printf("Failed to init the MQTT context errcode is %d", err);
return -1;
}
ctx->mqttctx->read_func = MqttSample_RecvPkt;
ctx->mqttctx->writev_func = MqttSample_SendPkt;
ctx->mqttctx->handle_conn_ack = MqttSample_HandleConnAck;
ctx->mqttctx->handle_conn_ack_arg = ctx;
ctx->mqttctx->handle_ping_resp = MqttSample_HandlePingResp;
ctx->mqttctx->handle_ping_resp_arg = ctx;
ctx->mqttctx->handle_publish = MqttSample_HandlePublish;
ctx->mqttctx->handle_publish_arg = ctx;
ctx->mqttctx->handle_pub_ack = MqttSample_HandlePubAck;
ctx->mqttctx->handle_pub_ack_arg = ctx;
ctx->mqttctx->handle_pub_rec = MqttSample_HandlePubRec;
ctx->mqttctx->handle_pub_rec_arg = ctx;
ctx->mqttctx->handle_pub_rel = MqttSample_HandlePubRel;
ctx->mqttctx->handle_pub_rel_arg = ctx;
ctx->mqttctx->handle_pub_comp = MqttSample_HandlePubComp;
ctx->mqttctx->handle_pub_comp_arg = ctx;
ctx->mqttctx->handle_sub_ack = MqttSample_HandleSubAck;
ctx->mqttctx->handle_sub_ack_arg = ctx;
ctx->mqttctx->handle_unsub_ack = MqttSample_HandleUnsubAck;
ctx->mqttctx->handle_unsub_ack_arg = ctx;
ctx->mqttctx->handle_cmd = MqttSample_HandleCmd;
ctx->mqttctx->handle_cmd_arg = ctx;
ctx->cmdid[0] = '\0';
MqttBuffer_Init(ctx->mqttbuf);
return 0;
}
static int MqttSample_Init(struct MqttSampleContext *ctx)
{
struct epoll_event event;
int err;
ctx->sendedbytes = -1;
ctx->mqttfd = -1;
ctx->host = "192.168.200.218";
ctx->port = 6002;
ctx->proid = "433223";
ctx->devid = "45523";
ctx->apikey = "Bs04OCJioNgpmvjRphRak15j7Z8=";
err = Mqtt_InitContext(ctx->mqttctx, 1 << 20);
if(MQTTERR_NOERROR != err) {
printf("Failed to init the MQTT context errcode is %d", err);
return -1;
}
ctx->mqttctx->read_func = MqttSample_RecvPkt;
ctx->mqttctx->read_func_arg = (void*)(size_t)ctx->mqttfd;
ctx->mqttctx->writev_func_arg = (void*)(size_t)ctx->mqttfd;
ctx->mqttctx->writev_func = MqttSample_SendPkt;
ctx->mqttctx->handle_conn_ack = MqttSample_HandleConnAck;
ctx->mqttctx->handle_conn_ack_arg = ctx;
ctx->mqttctx->handle_ping_resp = MqttSample_HandlePingResp;
ctx->mqttctx->handle_ping_resp_arg = ctx;
ctx->mqttctx->handle_publish = MqttSample_HandlePublish;
ctx->mqttctx->handle_publish_arg = ctx;
ctx->mqttctx->handle_pub_ack = MqttSample_HandlePubAck;
ctx->mqttctx->handle_pub_ack_arg = ctx;
ctx->mqttctx->handle_pub_rec = MqttSample_HandlePubRec;
ctx->mqttctx->handle_pub_rec_arg = ctx;
ctx->mqttctx->handle_pub_rel = MqttSample_HandlePubRel;
ctx->mqttctx->handle_pub_rel_arg = ctx;
ctx->mqttctx->handle_pub_comp = MqttSample_HandlePubComp;
ctx->mqttctx->handle_pub_comp_arg = ctx;
ctx->mqttctx->handle_sub_ack = MqttSample_HandleSubAck;
ctx->mqttctx->handle_sub_ack_arg = ctx;
ctx->mqttctx->handle_unsub_ack = MqttSample_HandleUnsubAck;
ctx->mqttctx->handle_unsub_ack_arg = ctx;
ctx->mqttctx->handle_cmd = MqttSample_HandleCmd;
ctx->mqttctx->handle_cmd_arg = ctx;
ctx->cmdid[0] = '\0';
MqttBuffer_Init(ctx->mqttbuf);
ctx->epfd = epoll_create(10);
if(ctx->epfd < 0) {
printf("Failed to create the epoll instance.\n");
return -1;
}
if(fcntl(STDIN_FILENO, F_SETFL, O_NONBLOCK) < 0) {
printf("Failed to set the stdin to nonblock mode, errcode is %d.\n", errno);
return -1;
}
event.data.fd = STDIN_FILENO;
event.events = EPOLLIN;
if(epoll_ctl(ctx->epfd, EPOLL_CTL_ADD, STDIN_FILENO, &event) < 0) {
printf("Failed to add the stdin to epoll, errcode is %d.\n", errno);
return -1;
}
return 0;
}
