调式日志封装 #C++ #windows

log.cpp

#include "log.h"
#include <windows.h>
#include <tchar.h>
#include <iostream>

void OutputDebugStringEx(const wchar_t * format, ...)
{
	wchar_t buf[512];
	va_list args;
	va_start(args, format);
	int len = _vstprintf_s(buf, format, args);
	va_end(args);
	OutputDebugString(buf);
}

void PrintLog(const wchar_t * wmsgbuf, int nLevel, const char* _func, const char * _file, int _line)
{
	DWORD func_BufSize = MultiByteToWideChar(CP_UTF8, 0, _func, -1, NULL, 0);
	DWORD file_BufSize = MultiByteToWideChar(CP_UTF8, 0, _file, -1, NULL, 0);
	wchar_t* wfunc = new wchar_t[func_BufSize];
	wchar_t* wfile = new wchar_t[file_BufSize];
	wmemset(wfunc, 0, func_BufSize);
	wmemset(wfile, 0, file_BufSize);
	MultiByteToWideChar(CP_UTF8, 0, _func, -1, LPWSTR(wfunc), func_BufSize);
	MultiByteToWideChar(CP_UTF8, 0, _file, -1, LPWSTR(wfile), file_BufSize);

	switch (nLevel) {
	case LOG_LEVEL::Info:
		OutputDebugStringEx(L"Info : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Warm:
		OutputDebugStringEx(L"Warm : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Error:
		OutputDebugStringEx(L"Error : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Fatal:
		OutputDebugStringEx(L"Fatal : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	}
	delete wfunc;
	delete wfile;
}

void PrintLog(std::string msgbuf, int nLevel, const char* _func, const char * _file, int _line)
{
	DWORD msgbuf_BufSize = MultiByteToWideChar(CP_UTF8, 0, msgbuf.c_str(), -1, NULL, 0);
	DWORD func_BufSize = MultiByteToWideChar(CP_UTF8, 0, _func, -1, NULL, 0);
	DWORD file_BufSize = MultiByteToWideChar(CP_UTF8, 0, _file, -1, NULL, 0);
	wchar_t* wmsgbuf = new wchar_t[msgbuf_BufSize];
	wchar_t* wfunc = new wchar_t[func_BufSize];
	wchar_t* wfile = new wchar_t[file_BufSize];
	wmemset(wmsgbuf, 0, msgbuf_BufSize);
	wmemset(wfunc, 0, func_BufSize);
	wmemset(wfile, 0, file_BufSize);
	MultiByteToWideChar(CP_UTF8, 0, msgbuf.c_str(), -1, LPWSTR(wmsgbuf), msgbuf_BufSize);
	MultiByteToWideChar(CP_UTF8, 0, _func, -1, LPWSTR(wfunc), func_BufSize);
	MultiByteToWideChar(CP_UTF8, 0, _file, -1, LPWSTR(wfile), file_BufSize);

	switch (nLevel) {
	case LOG_LEVEL::Info:
		OutputDebugStringEx(L"Info : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Warm:
		OutputDebugStringEx(L"Warm : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Error:
		OutputDebugStringEx(L"Error : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	case LOG_LEVEL::Fatal:
		OutputDebugStringEx(L"Fatal : %s...[%s(%d) %s]\n", wmsgbuf, wfile, _line, wfunc);
		break;
	}
	delete wmsgbuf;
	delete wfunc;
	delete wfile;
}

log.hpp

#pragma once
#include <iostream>

enum LOG_LEVEL {
	Info,
	Warm,
	Error,
	Fatal
};

//OutputDebugStringW扩展版
void OutputDebugStringEx(const wchar_t * format, ...);

/*
*@brief 打印Debug信息(中文可能有问题)
*@param msgbuf 提示信息
*@param nLevel log等级 LOG_LEVEL : Info,Warm,Error,Fatal
*@param _func 宏 __DUNCTION__ 函数名
*@param _file 宏 __FILE__ 文件名
*@param _line 宏 __LINE__ 行数
*/
void PrintLog(const wchar_t * wmsgbuf, int nLevel, const char* _func, const char * _file, int _line);

void PrintLog(std::string msgbuf, int nLevel, const char* _func, const char * _file, int _line);