内存泄漏&获取dump文件

在我们编写代码的过程中，避免不了内存泄漏问题和程序崩溃问题，常常为寻找程序崩溃点而烦恼。这篇文章主要为解决程序崩溃而写。以下是代码头文件getDump.h。

#pragma once

#include <DbgHelp.h>
#pragma comment(lib, "DbgHelp.lib")

int CreateDump(PEXCEPTION_POINTERS pExcrption) {
	std::cout << "crash!!!" << std::endl;
	SYSTEMTIME localTime;
	GetLocalTime(&localTime);

	TCHAR fileName[MAX_PATH] = {0};
	wsprintf(fileName, L"%04d-%02d-%02d-%02d-%02d-%02d", localTime.wYear, localTime.wMonth, localTime.wDay, localTime.wHour, localTime.wMinute, localTime.wSecond);
	
	HANDLE dumpFile = CreateFile(fileName, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);

	MINIDUMP_EXCEPTION_INFORMATION dumpInfo;
	dumpInfo.ExceptionPointers = pExcrption;
	dumpInfo.ThreadId = GetCurrentThreadId();
	dumpInfo.ClientPointers = TRUE;

	MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), dumpFile, MiniDumpNormal, &dumpInfo, NULL, NULL);
	
	CloseHandle(dumpFile);
	return 0;
}

下面是使用示例：

#include <iostream>
#include "getDump.h"

int main() {
	/* 启用getDump */
	SetUnhandledExceptionFilter(ExceptionFilter);

	/* 检测内存泄漏 */
	_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
	
	int* p = nullptr; //new int(100);
	std::cout << *p << std::endl;

	delete p; //释放或不释放 看检测结果
	 
	return 0;
}