首页 › libevent › windows下编译及使用libevent

windows下编译及使用libevent

第七根弦 2016 年 2 月 18 日 libevent 发表评论 (0)

Libevent官网：http://libevent.org/
windows下编译：
编译环境： windows 7 + VS2010
（1）解压libevent到F:\libevent\libevent-2.0.21-stable
（2）打开Microsoft visual studio 2010命令行工具
（3）修改以下三个文件，添加宏定义：

在以下3个文件开头添加“#define _WIN32_WINNT 0x0500”
libevent-2.0.21-stable\event_iocp.c
libevent-2.0.21-stable\evthread_win32.c
libevent-2.0.21-stable\listener.c

（4）使用VS命令提示工具编译：
cd/d F:\libevent\libevent-2.0.21-stable
nmake /f Makefile.nmake

（5）编译结果：
libevent_core.lib：All core event and buffer functionality. This library contains all the event_base, evbuffer, bufferevent, and utility functions.
libevent_extras.lib：This library defines protocol-specific functionality that you may or may not want for your application, including HTTP, DNS, and RPC.
libevent.lib：This library exists for historical reasons; it contains the contents of both libevent_core and libevent_extra. You shouldn’t use it; it may go away in a future version of Libevent.

（6）VS2010下使用lib
新建一个VC++控制台项目：
环境配置：
项目下建一个Lib目录，将上面三个lib文件copy到该目录下。
新建一个Include目录，将F:\libevent\libevent-2.0.21-stable\include下的文件和文件夹copy到该目录下，F:\libevent\libevent-2.0.21-stable\WIN32-Code下的文件copy到该目录下，2个event2目录下的文件可合并一起。

main代码：

C++
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
// LibeventTest.cpp : 定义控制台应用程序的入口点。
//
 
#include "stdafx.h"
 
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <signal.h>
 
#ifndef WIN32
#include <netinet/in.h>
# ifdef _XOPEN_SOURCE_EXTENDED
#  include <arpa/inet.h>
# endif
#include <sys/socket.h>
#endif
 
#include "event2/bufferevent.h"
#include "event2/buffer.h"
#include "event2/listener.h"
#include "event2/util.h"
#include "event2/event.h"
 
#include <WinSock2.h>
 
static const char MESSAGE[] = "Hello, World!\n";
 
static const int PORT = 9995;
 
 
static void conn_writecb(struct bufferevent *bev, void *user_data)
{
    struct evbuffer *output = bufferevent_get_output(bev);
    if (evbuffer_get_length(output) == 0)
    {
        printf("flushed answer\n");
        bufferevent_free(bev);
    }
}
 
static void conn_eventcb(struct bufferevent *bev, short events, void *user_data)
{
    if (events & BEV_EVENT_EOF)
    {
        printf("Connection closed.\n");
    }
    else if (events & BEV_EVENT_ERROR)
    {
        printf("Got an error on the connection: %s\n",
            strerror(errno));/*XXX win32*/
    }
    /* None of the other events can happen here, since we haven't enabled
     * timeouts */
    bufferevent_free(bev);
}
 
static void signal_cb(evutil_socket_t sig, short events, void *user_data)
{
    struct event_base *base = (struct event_base *)user_data;
    struct timeval delay = { 2, 0 };
 
    printf("Caught an interrupt signal; exiting cleanly in two seconds.\n");
 
    event_base_loopexit(base, &delay);
}
 
static void listener_cb(struct evconnlistener *listener, evutil_socket_t fd,
    struct sockaddr *sa, int socklen, void *user_data)
{
    struct event_base *base = (struct event_base *)user_data;
    struct bufferevent *bev;
 
    bev = bufferevent_socket_new(base, fd, BEV_OPT_CLOSE_ON_FREE);
    if (!bev)
    {
        fprintf(stderr, "Error constructing bufferevent!");
        event_base_loopbreak(base);
        return;
    }
    bufferevent_setcb(bev, NULL, conn_writecb, conn_eventcb, NULL);
    bufferevent_enable(bev, EV_WRITE);
    bufferevent_disable(bev, EV_READ);
 
    bufferevent_write(bev, MESSAGE, strlen(MESSAGE));
}
 
int main(int argc, char **argv)
{
    struct event_base *base;
    struct evconnlistener *listener;
    struct event *signal_event;
 
    struct sockaddr_in sin;
 
#ifdef WIN32
    WSADATA wsa_data;
    WSAStartup(0x0201, &wsa_data);
#endif
 
    base = event_base_new();
    if (!base)
    {
        fprintf(stderr, "Could not initialize libevent!\n");
        return 1;
    }
 
    memset(&sin, 0, sizeof(sin));
    sin.sin_family = AF_INET;
    sin.sin_port = htons(PORT);
 
    listener = evconnlistener_new_bind(base, listener_cb, (void *)base,
        LEV_OPT_REUSEABLE|LEV_OPT_CLOSE_ON_FREE, -1,
        (struct sockaddr*)&sin,
        sizeof(sin));
 
    if (!listener)
    {
        fprintf(stderr, "Could not create a listener!\n");
        return 1;
    }
 
    signal_event = evsignal_new(base, SIGINT, signal_cb, (void *)base);
 
    if (!signal_event || event_add(signal_event, NULL)<0)
    {
        fprintf(stderr, "Could not create/add a signal event!\n");
        return 1;
    }
 
    event_base_dispatch(base);
 
    evconnlistener_free(listener);
    event_free(signal_event);
    event_base_free(base);
 
    printf("done\n");
    return 0;
}

项目属性设置：
VC++目录：
包含目录，添加：F:\Projects\LibeventTest\LibeventTest\Include;
库目录，添加：F:\Projects\LibeventTest\LibeventTest\Lib;

C/C++：
代码生成–>运行库：多线程调试 (/MTd)（Debug下），多线程 (/MT)（Release下）

连接器：
输入：ws2_32.lib;wsock32.lib;libevent.lib;libevent_core.lib;libevent_extras.lib;
ws2_32.lib;wsock32.lib;是用来编译Windows网络相关的程序库。

编译，生成！

|

发表评论