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今天就介绍一下vs2013 下面调试libevent源码。不需要创建sln解决方案，只需要创建工程，包含

源码目录即可源码调试。 

1、手工添加test/print-winsocke-errors.c文件，不然nmake编译的时候会报错。

print-winsock-errors.c源代码程序：

#include 
   
    #include 
    
     #include 
     
      #include 
      
       #include "event2/event.h"#include "event2/util.h"#include "event2/thread.h"#define E(x) printf (#x " -> \"%s\"\n", evutil_socket_error_to_string (x));int main (int argc, char **argv){  int i, j;  const char *s1, *s2;#ifdef EVTHREAD_USE_WINDOWS_THREADS_IMPLEMENTED  evthread_use_windows_threads ();#endif  s1 = evutil_socket_error_to_string (WSAEINTR);  for (i = 0; i < 3; i++) {    printf ("\niteration %d:\n\n", i);    E(WSAEINTR);    E(WSAEACCES);    E(WSAEFAULT);    E(WSAEINVAL);    E(WSAEMFILE);    E(WSAEWOULDBLOCK);    E(WSAEINPROGRESS);    E(WSAEALREADY);    E(WSAENOTSOCK);    E(WSAEDESTADDRREQ);    E(WSAEMSGSIZE);    E(WSAEPROTOTYPE);    E(WSAENOPROTOOPT);    E(WSAEPROTONOSUPPORT);    E(WSAESOCKTNOSUPPORT);    E(WSAEOPNOTSUPP);    E(WSAEPFNOSUPPORT);    E(WSAEAFNOSUPPORT);    E(WSAEADDRINUSE);    E(WSAEADDRNOTAVAIL);    E(WSAENETDOWN);    E(WSAENETUNREACH);    E(WSAENETRESET);    E(WSAECONNABORTED);    E(WSAECONNRESET);    E(WSAENOBUFS);    E(WSAEISCONN);    E(WSAENOTCONN);    E(WSAESHUTDOWN);    E(WSAETIMEDOUT);    E(WSAECONNREFUSED);    E(WSAEHOSTDOWN);    E(WSAEHOSTUNREACH);    E(WSAEPROCLIM);    E(WSASYSNOTREADY);    E(WSAVERNOTSUPPORTED);    E(WSANOTINITIALISED);    E(WSAEDISCON);    E(WSATYPE_NOT_FOUND);    E(WSAHOST_NOT_FOUND);    E(WSATRY_AGAIN);    E(WSANO_RECOVERY);    E(WSANO_DATA);    E(0xdeadbeef); /* test the case where no message is available */    /* fill up the hash table a bit to make sure it grows properly */    for (j = 0; j < 50; j++) {      int err;      evutil_secure_rng_get_bytes(&err, sizeof(err));      evutil_socket_error_to_string(err);    }  }  s2 = evutil_socket_error_to_string (WSAEINTR);  if (s1 != s2)    printf ("caching failed!\n");  libevent_global_shutdown ();  return EXIT_SUCCESS;}
      
     
    
   

2、修改Makefile.nmake 

将 

CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /nologo

改为 

CFLAGS=$(CFLAGS) /Od /W3 /wd4996 /nologo /Zi

使用/Od禁止优化，使用/Zi 生成调试信息。

3、vs2013命令行编译：nmake /f Makefile.nmake

编译生成：

4、新建工程，附加源码调试

解决方案包含源代码目录：

　　以上三个目录添加到VC的附加库目录。

　   lib包含目录添加刚才生成的

　　所在目录

5、源码跟踪调试

F11跳入源码调试：

// libevent-test.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#pragma comment(lib,"ws2_32.lib")#pragma comment(lib,"wsock32.lib")#pragma comment(lib,"libevent.lib")#pragma comment(lib,"libevent_core.lib")#pragma comment(lib,"libevent_extras.lib")#include 
   
    #include 
    
     #include 
     
      #ifndef _WIN32#include 
      
       #include 
       
        #endif#include 
        
         #ifdef EVENT__HAVE_SYS_TIME_H#include 
         
          #endif#include 
          
           #include 
           
            #include 
            
             #include 
             
              #include 
              
               #include 
               
                #include 
                
                 #include 
                 
                  #ifdef _WIN32#include 
                  
                   #endifstruct timeval lasttime;int event_is_persistent;static voidtimeout_cb(evutil_socket_t fd, short event, void *arg){ struct timeval newtime, difference; struct event *timeout = (struct event *)arg; double elapsed; evutil_gettimeofday(&newtime, NULL); evutil_timersub(&newtime, &lasttime, &difference); elapsed = difference.tv_sec + (difference.tv_usec / 1.0e6); printf("timeout_cb called at %d: %.3f seconds elapsed.\n", (int)newtime.tv_sec, elapsed); lasttime = newtime; if (!event_is_persistent) { struct timeval tv; evutil_timerclear(&tv); tv.tv_sec = 2; event_add(timeout, &tv); }}intmain(int argc, char **argv){ struct event timeout; struct timeval tv; struct event_base *base; int flags;#ifdef _WIN32 WORD wVersionRequested; WSADATA wsaData; wVersionRequested = MAKEWORD(2, 2); (void)WSAStartup(wVersionRequested, &wsaData);#endif if (argc == 2 && !strcmp(argv[1], "-p")) { event_is_persistent = 1; flags = EV_PERSIST; } else { event_is_persistent = 0; flags = 0; } /* Initalize the event library */ base = event_base_new(); /* Initalize one event */ event_assign(&timeout, base, -1, flags, timeout_cb, (void*)&timeout); evutil_timerclear(&tv); tv.tv_sec = 2; event_add(&timeout, &tv); evutil_gettimeofday(&lasttime, NULL); event_base_dispatch(base); return (0);}
                  
                 
                
               
              
             
            
           
          
         
        
       
      
     
    
   

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