ESP8266 SDK 2.0 学习记录7

TCPServer
#include "esp_common.h"

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"

#include "lwip/sockets.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "espressif/espconn.h"
#include "espressif/airkiss.h"
#include "tcpserver.h"

#define SERVERADDR "192.168.0.106"
#define SERVERPORT 6008

void ATaskTcpServer(void *pvParameters)
{

    int iVariableExample = 0;
    int fd = -1;
    int cfd = -1;
    int NetTimerOut = 5000;
    int ret;
    struct sockaddr_in serverAddr;
    struct sockaddr ClientAddr;
    socklen_t ClientAddrlen = sizeof(struct sockaddr);
    char Tcpmsg[48];
    STATION_STATUS StaStatus;

    //等待连接wifi
    do
    {
        StaStatus = wifi_station_get_connect_status();
        vTaskDelay(100);
    } while (StaStatus != STATION_GOT_IP);

    //建立socket
    fd = socket(PF_INET, SOCK_STREAM, 0);
    if (fd == -1)
    {
        printf("get socket fail!\n");
        vTaskDelete(NULL);
    }

    //设置socket超时时间
    setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &NetTimerOut, sizeof(int));

    //设置socket信息,ip,端口号
    memset(&serverAddr, 0, sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = INADDR_ANY;
    serverAddr.sin_port = htons(SERVERPORT);
    serverAddr.sin_len = sizeof(serverAddr);

    //绑定ip信息
    if(bind(fd, (struct sockaddr *)&serverAddr, serverAddr.sin_len) != 0)
    {
        printf("bind socket fail!\n");
        vTaskDelete(NULL);
        return;
    }

    //最大连接数5
    if(listen(fd, 5)!=0)
    {
        printf("listen socket fail!\n");
        vTaskDelete(NULL);
        return;
    }


    for (;;)
    {
        //等待客户端连接
        cfd = accept(fd, &ClientAddr, &ClientAddrlen);
        if(cfd != -1)
        {
            ret = recv(cfd, Tcpmsg, 48, 0);
            if (ret > 0)
            {
                printf("TcpClient:%s\n", Tcpmsg);
                send(cfd, "I am TcpServer", sizeof("I am TcpServer"), 0);
            }
            else
            {
                printf("TcpClient data is no!\n");
                /* code */
            }

        }
        //关闭连接
        close(cfd);

    }

    vTaskDelete(NULL);
}

void tcdServer_int(void)
{
    xTaskCreate(ATaskTcpServer, "tcpServer", 256, NULL, 4, NULL);
}
测试结果
来源：CSDN
作者：cloudstep
链接：https://blog.csdn.net/cloudstep/article/details/104226661
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