C++设计实现压力测试工具参考iperf源代码 客户端和服务端 代码

您可以参考以下代码来实现C++的压力测试工具，这里以iperf为例，包括客户端和服务端代码：

服务端代码：

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

#define PORT 5001
#define MAXLINE 1024

int main(int argc, char **argv) {
    int listenfd, connfd;
    struct sockaddr_in servaddr, cliaddr;
    socklen_t cliaddr_len;
    char buf[MAXLINE];
    ssize_t n;

    if ((listenfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    memset(&servaddr, 0, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
    servaddr.sin_port = htons(PORT);

    if (bind(listenfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) == -1) {
        perror("bind");
        exit(EXIT_FAILURE);
    }

    if (listen(listenfd, 5) == -1) {
        perror("listen");
        exit(EXIT_FAILURE);
    }

    printf("server listening on port %d...\n", PORT);

    while (1) {
        cliaddr_len = sizeof(cliaddr);

        if ((connfd = accept(listenfd, (struct sockaddr *) &cliaddr, &cliaddr_len)) == -1) {
            perror("accept");
            exit(EXIT_FAILURE);
        }

        printf("connection from %s, port %d\n", inet_ntoa(cliaddr.sin_addr), ntohs(cliaddr.sin_port));

        while ((n = read(connfd, buf, MAXLINE)) > 0) {
            if (write(connfd, buf, n) != n) {
                perror("write");
                exit(EXIT_FAILURE);
            }
        }

        if (n < 0) {
            perror("read");
            exit(EXIT_FAILURE);
        }

        close(connfd);
    }

    return 0;
}

客户端代码：

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

#define PORT 5001
#define MAXLINE 1024

int main(int argc, char **argv) {
    int sockfd;
    struct sockaddr_in servaddr;
    char sendline[MAXLINE], recvline[MAXLINE];
    ssize_t n;

    if (argc != 2) {
        fprintf(stderr, "usage: %s <server IP address>\n", argv[0]);
        exit(EXIT_FAILURE);
    }

    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }

    memset(&servaddr, 0, sizeof(servaddr));
    servaddr.sin_family = AF_INET;
    servaddr.sin_port = htons(PORT);

    if (inet_pton(AF_INET, argv[1], &servaddr.sin_addr) <= 0) {
        fprintf(stderr, "inet_pton error for %s\n", argv[1]);
        exit(EXIT_FAILURE);
    }

    if (connect(sockfd, (struct sockaddr *) &servaddr, sizeof(servaddr)) == -1) {
        perror("connect");
        exit(EXIT_FAILURE);
    }

    printf("connected to server on %s:%d\n", argv[1], PORT);

    while (fgets(sendline, MAXLINE, stdin) != NULL) {
        if (write(sockfd, sendline, strlen(sendline)) == -1) {
            perror("write");
            exit(EXIT_FAILURE);
        }

        if ((n = read(sockfd, recvline, MAXLINE)) == -1) {
            perror("read");
            exit(EXIT_FAILURE);
        }

        recvline[n] = '\0';

        if (fputs(recvline, stdout) == EOF) {
            perror("fputs");
            exit(EXIT_FAILURE);
        }
    }

    if (n < 0) {
        perror("read");
        exit(EXIT_FAILURE);
    }

    close(sockfd);

    return 0;
}

这段代码实现了一个简单的TCP服务器和客户端，服务器监听本地的5001端口，客户端连接到指定的服务器IP和端口，发送一条消息并等待回复。您可以根据自己的需求进行修改和扩展。