在linux上为同一个C套接字设置read()和send()超时

#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdio.h>

int main() {
    int sockfd;
    struct sockaddr_in servaddr;
    struct timeval read_timeout, write_timeout;

    // 创建套接字
    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        perror("socket creation failed");
        return -1;
    }

    // 设置服务器地址
    memset(&servaddr, 0, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_port = htons(8080);
    inet_pton(AF_INET, "127.0.0.1", &servaddr.sin_addr);

    // 设置读超时
    read_timeout.tv_sec = 5;  // 5秒
    read_timeout.tv_usec = 0;
    setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (char *)&read_timeout, sizeof(read_timeout));

    // 设置写超时
    write_timeout.tv_sec = 5;  // 5秒
    write_timeout.tv_usec = 0;
    setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *)&write_timeout, sizeof(write_timeout));

    // 连接服务器
    if (connect(sockfd, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0) {
        perror("connection failed");
        close(sockfd);
        return -1;
    }

    // 进行读写操作...

    close(sockfd);
    return 0;
}