用最简单的方式实现基于libevent框架的http client客户端

忘是亡心i 2022-09-16 13:24 160阅读 0赞

\#include <event2/event\_struct.h>  
\#include <event2/event.h>  
\#include <event2/bufferevent.h>  
\#include <event2/http.h>  
\#include <evhttp.h>  
   
void http\_request\_done(struct evhttp\_request \*req, void \*arg)  
\{  
    printf("send request ok...\\n");  
    size\_t len = evbuffer\_get\_length(req->input\_buffer);  
    unsigned char \* str = evbuffer\_pullup(req->input\_buffer, len);  
    char buf\[256\] = \{ 0 \};  
    memcpy(buf, str, len);  
    if(str == NULL)  
    \{  
        printf("len = %d, str == NULL\\n", len);  
    \}  
    else  
    \{  
        printf("len = %d, str = %s\\n", len, buf);  
    \}  
   
    event\_base\_loopbreak((struct event\_base\*)arg);  
\}  
   
int main()  
\{  
    struct event\_base\* base;  
    struct evhttp\_connection\* conn;  
    struct evhttp\_request\* req;  
   
    base = event\_base\_new();  
    //conn = evhttp\_connection\_new(base, NULL, "192.168.1.109", 8081);  
    conn = evhttp\_connection\_new("192.168.1.109", 8081);  
    evhttp\_connection\_set\_base(conn, base);  
   
   
    req = evhttp\_request\_new(http\_request\_done, base);  
    evhttp\_add\_header(req->output\_headers, "Host", "localhost");  
    evhttp\_make\_request(conn, req, EVHTTP\_REQ\_GET, "/test");  
    evhttp\_connection\_set\_timeout(req->evcon, 600);  
    event\_base\_dispatch(base);  
   
    evhttp\_connection\_free(conn);  
    event\_base\_free(base);  
    printf("run over...\\n");  
    return 0;  
\}

服务端程序参考我之前的服务端代码  服务端代码

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原文链接：https://blog.csdn.net/qq849635649/article/details/51689699