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