/**
* @brief 发送MQTT Connet报文，登录鉴权
* @param ctx:上下文变量
* @retval ret:0,成功，<0 失败
**/
static int MqttSample_CmdConnect(struct MqttSampleContext *ctx)
{
int err;
int bytes = 0;
printf("%s %d\n", __func__, __LINE__);
err = Mqtt_PackConnectPkt(ctx->mqttbuf, 0, ctx->devid, 1, "WillTopic",
"will message-test", 17, MQTT_QOS_LEVEL0, 0, ctx->proid,
ctx->apikey, strlen(ctx->apikey));
if(MQTTERR_NOERROR != err)
{
printf("Failed to pack the MQTT CONNECT PACKET, errcode is %d.\n", err);
return -1;
}
bytes = Mqtt_SendPkt(ctx->mqttctx, ctx->mqttbuf, 0);
MqttBuffer_Reset(ctx->mqttbuf);
return 0;
}
//-------------------------------- Commands ------------------------------------------------------
static int MqttSample_CmdConnect(struct MqttSampleContext *ctx)
{
int err, flags;
struct epoll_event event;
if(ctx->mqttfd >= 0) {
close(ctx->mqttfd);
epoll_ctl(ctx->epfd, EPOLL_CTL_DEL, ctx->mqttfd, NULL);
}
ctx->mqttfd = MqttSample_CreateTcpConnect(ctx->host, ctx->port);
if(ctx->mqttfd < 0) {
return -1;
}
ctx->mqttctx->read_func_arg = (void*)(size_t)ctx->mqttfd;
ctx->mqttctx->writev_func_arg = (void*)(size_t)ctx->mqttfd;
flags = fcntl(ctx->mqttfd, F_GETFL, 0);
if(-1 == flags) {
printf("Failed to get the socket file flags, errcode is %d.\n", errno);
}
if(fcntl(ctx->mqttfd, F_SETFL, flags | O_NONBLOCK) < 0) {
printf("Failed to set the socket to nonblock mode, errcode is %d.\n", errno);
return -1;
}
event.data.fd = ctx->mqttfd;
event.events = EPOLLIN | EPOLLONESHOT | EPOLLET;
if(epoll_ctl(ctx->epfd, EPOLL_CTL_ADD, ctx->mqttfd, &event) < 0) {
printf("Failed to add the socket to the epoll, errcode is %d.\n", errno);
return -1;
}
err = Mqtt_PackConnectPkt(ctx->mqttbuf, 0, ctx->devid, 1, "WillTopic",
"will message-xxxx", 17, MQTT_QOS_LEVEL0, 0, ctx->proid,
ctx->apikey, strlen(ctx->apikey));
if(MQTTERR_NOERROR != err) {
printf("Failed to pack the MQTT CONNECT PACKET, errcode is %d.\n", err);
return -1;
}
return 0;
}
