linux下使用NetBeans调试libevent库

最新推荐文章于 2021-07-12 11:08:24 发布

unix21

最新推荐文章于 2021-07-12 11:08:24 发布

阅读量1.6k

点赞数

分类专栏：调试

本文链接：https://blog.youkuaiyun.com/unix21/article/details/8684146

版权

调试专栏收录该内容

25 篇文章

订阅专栏

本文介绍了如何在Linux系统中利用NetBeans进行libevent库的调试。首先，详细讲述了libevent的安装步骤，然后指导如何安装并配置NetBeans，包括添加libevent的头文件路径和设置链接器选项。完成配置后，即可运行和调试程序，甚至能够深入到libevent的源代码中。最后指出，如果是C语言项目，只需选择相应选项。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1.安装libevent

参考：http://blog.youkuaiyun.com/unix21/article/details/8679269

libevent安装在usr/local/libevent下

2.安装netBeans

http://www.netbeans.org

3.配置netBeans

1)打开项目的属性选项，选择包含目录，把/usr//local/libevent/include目录加进来

2) 链接器，在【其他库目录】把libevent的lib目录加上，在【库】中把要链接的库文件设为libevent/lib中的libevent.so即可。

3)运行程序

4）调试程序

可以跳入到libevent的代码下

5) 程序：

#include <cstdlib>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <event2/event.h>
#include <event2/event_struct.h>
#include <unistd.h>

using namespace std;

#define N 300

#define BUFLEN 256

struct timeval lasttime;

struct ST_EventWithDescription
{
    struct event *p_event;
    int time_interval;
    char lable[BUFLEN];
};

static void timeout_cb(evutil_socket_t fd, short event, void *arg)
{
    struct timeval newtime, difference;
    struct ST_EventWithDescription *pSTEvent = (ST_EventWithDescription*)arg;
    struct event *timeout = pSTEvent->p_event;
    double elapsed;
    evutil_gettimeofday(&newtime, NULL);
    evutil_timersub(&newtime, &lasttime, &difference);
    elapsed = difference.tv_sec + (difference.tv_usec / 1.0e6);

    printf("%s called at %d: %.3f seconds since my last work.\n",
          (char*)pSTEvent->lable,(int)newtime.tv_sec, elapsed);
    lasttime = newtime;

    struct timeval tv;
    evutil_timerclear(&tv);
    tv.tv_sec = pSTEvent->time_interval;
    event_add(timeout, &tv);
}

void setParam(struct ST_EventWithDescription *stEventDescription,
              struct event *m_event,int time_interval,char* m_lable)
{
    stEventDescription->p_event = m_event;
    stEventDescription->time_interval = time_interval;
    memset(stEventDescription->lable,0,sizeof(stEventDescription->lable));
    memcpy(stEventDescription->lable,m_lable,strlen(m_lable)+1);
}

void setTimeIntervalArr(int *arr,int n)
{
    int i;
    srand(time(NULL));
    for(i=0; i<n; ++i)
    {
        *(arr+i) = rand()%n + 1;
        //*(arr+i) = i+1;
    }
}

int main(int argc, char** argv) {

    struct event timeout[N];
    struct ST_EventWithDescription stEvent[N];
    int time_interval[N];
    int i=0;

    struct timeval tv;
    struct event_base *base;
    int flags = 0;

    setTimeIntervalArr(time_interval,N);

    base = event_base_new();
    evutil_timerclear(&tv);

    for(i=0; i<N; ++i)
    {
        char buf[BUFLEN]= {0};
        sprintf(buf,"task%d",i+1);
        setParam(stEvent+i,timeout+i,time_interval[i],buf);
        event_assign(timeout+i, base, -1, flags, timeout_cb, (void*)(stEvent+i));
        event_add(timeout+i, &tv);
    }
    
    evutil_gettimeofday(&lasttime, NULL);
    event_base_dispatch(base);
    
    return 0;
}

4.说明

如果是C语言选对应选项即可

原文参考：http://hi.baidu.com/492943457/item/ca73933c34698e27b3c0c528