libevent學(xué)習(xí)之六：VS2013調(diào)試libevent源碼
[導(dǎo)讀]今天就介紹一下vs2013 下面調(diào)試libevent源碼。不需要?jiǎng)?chuàng)建sln解決方案，只需要?jiǎng)?chuàng)建工程，包含源碼目錄即可源碼調(diào)試。?1、手工添加test/print-winsocke-errors.c文件
今天就介紹一下vs2013 下面調(diào)試libevent源碼。不需要?jiǎng)?chuàng)建sln解決方案，只需要?jiǎng)?chuàng)建工程，包含
源碼目錄即可源碼調(diào)試。?
1、手工添加test/print-winsocke-errors.c文件，不然nmake編譯的時(shí)候會(huì)報(bào)錯(cuò)。
print-winsock-errors.c源代碼程序：
#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:nn",?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?
將?
CFLAGS=$(CFLAGS)?/Ox?/W3?/wd4996?/nologo
改為?
CFLAGS=$(CFLAGS)?/Od?/W3?/wd4996?/nologo?/Zi
使用/Od禁止優(yōu)化，使用/Zi 生成調(diào)試信息。
3、vs2013命令行編譯：nmake /f Makefile.nmake
編譯生成：
4、新建工程，附加源碼調(diào)試
解決方案包含源代碼目錄：
?
以上三個(gè)目錄添加到VC的附加庫(kù)目錄。
? lib包含目錄添加剛才生成的
所在目錄
5、源碼跟蹤調(diào)試
F11跳入源碼調(diào)試：
附上測(cè)試代碼：
//?libevent-test.cpp?:?定義控制臺(tái)應(yīng)用程序的入口點(diǎn)。
//
#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#endif
struct?timeval?lasttime;
int?event_is_persistent;
static?void
timeout_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);
????}
}
int
main(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);
}原文鏈接：https://www.cnblogs.com/Forever-Kenlen-Ja/p/7487207.html
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