[Turn]windows to compile and use libevent

Http://www.cnblogs.com/luxiaoxun/p/3603399.html

Libevent Official website: http://libevent.org/

Windows 7 under compilation:

Compilation environment: Windows 7 + VS2010

(1) Unzip libevent to F:\libevent\libevent-2.0.21-stable

(2) Open the Microsoft Visual Studio 2010 command-line tool

(3) Modify the following three files to add a macro definition:

Add "#define _WIN32_WINNT 0x0500" at the beginning of the following 3 files

Libevent-2.0.21-stable\event_iocp.c

Libevent-2.0.21-stable\evthread_win32.c

Libevent-2.0.21-stable\listener.c

(4) compile with the VS Command prompt tool:

CD/D F:\libevent\libevent-2.0.21-stable

nmake/f Makefile.nmake

(5) Compile result:

Libevent_core.lib:All core event and buffer functionality. This library is contains all the Event_base, Evbuffer, bufferevent, and utility functions.

Libevent_extras.lib:This Library defines protocol-specific functionality that's 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) using Lib under VS2010

To create a new VC + + Console project:

Environment configuration:

Project to build a Lib directory, the above three lib files to copy to the directory.

Create a new include directory, copy the files and folders under F:\libevent\libevent-2.0.21-stable\include to this directory, F:\libevent\libevent-2.0.21-stable\ Win32-code files under this directory, the files under the 2 Event2 directories can be merged together.

Main code:

LibeventTest.cpp: Defines the entry point of the console application. #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) {Struc    T 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 E Vents 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 seconds.\n "); Event_base_loopexit (base, &delay);} static void Listener_cb (struct evconnlistener *listener, evutil_socket_t fd, struct sockaddr *sa, int socklen, void *us    Er_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;}

Project Property settings:

VC + + Directory:

Include directory, add: F:\Projects\LibeventTest\LibeventTest\Include;

Library directory, add: F:\Projects\LibeventTest\LibeventTest\Lib;

C + +:

Code Generation--Runtime: Multithreaded Debugging (/MTD) (Debug), Multithreading (/MT) (under release)

Connector:

Input: Ws2_32.lib;wsock32.lib;libevent.lib;libevent_core.lib;libevent_extras.lib;

Ws2_32.lib;wsock32.lib; is used to compile Windows network-related libraries.

Compile, Build!

Compiled libevent lib download libevent2.0.21.rar

[Turn]windows to compile and use libevent