// stdafx.cpp : 只包括标准包含文件的源文件
// CCEXPipe.pch 将作为预编译头
// stdafx.obj 将包含预编译类型信息

#include "stdafx.h"
#include <stdio.h>

// TODO: 在 STDAFX.H 中
// 引用任何所需的附加头文件，而不是在此文件中引用


void LogOutToFile(const char* fmt, ...)
{
	static CRITICAL_SECTION stCritical;
	static BOOL bInit = FALSE;
	static char acLogPath[2148] = {0};
	if (FALSE == bInit)
	{
		bInit = TRUE;
		GetModuleFileName(NULL, acLogPath, 2047);

		for (int i = strlen(acLogPath)-1; i > 0; i--)
		{
			if (acLogPath[i] == '\\')
			{
				acLogPath[i] = '\0';
				break;
			}
		}
		strcat(acLogPath, "\\CCEXPipe.log");

		InitializeCriticalSection(&stCritical);
	}

	EnterCriticalSection(&stCritical);

	va_list ap;
	va_start(ap, fmt);
	char pBuffer[800] = "";
	if (vsnprintf_s(pBuffer, 796,_TRUNCATE, fmt, ap) > 0)
	{
		if (strlen(pBuffer) == 0 || pBuffer[strlen(pBuffer)-1] != '\n')
		{
			pBuffer[strlen(pBuffer)+1] = '\0';
			pBuffer[strlen(pBuffer)] = '\n';
		}
	}
	va_end(ap);

	FILE* pFile = NULL;
	fopen_s(&pFile, acLogPath, "ab+");
	if (NULL != pFile)
	{
		char acTime[32] = {0};
		SYSTEMTIME stTime;
		GetLocalTime(&stTime);
		sprintf_s(acTime, "[%02d-%02d %02d:%02d:%02d.%03d]  ", stTime.wMonth, stTime.wDay, stTime.wHour, stTime.wMinute, stTime.wSecond, stTime.wMilliseconds);
		fwrite(acTime, 1, strlen(acTime), pFile);
		fwrite(pBuffer, 1, strlen(pBuffer), pFile);
		fwrite("\r\n", 1, strlen("\r\n"), pFile);
		fclose(pFile);
	}
	LeaveCriticalSection(&stCritical);
}