请帮助解决heapalloc问题

问题描述

限时删除！！

我的程序在Visual Studio 2017中以常规C编写，并在Windows 10上运行。



它将二进制文件读入内存并提取信息。如果我处理大量（超过100个）非常大的文件（50-75MB），我会收到HeapAlloc错误。我正在做一个HeapAlloc，处理文件，然后做HeapFree。由于某种原因，堆的大小不断增加，直到达到32位应用程序的限制。



我的印象是，如果我做了HeapFree，下一个HeapAlloc会重用堆已经使用的内存。看来事实并非如此。



我应该做些什么不同的事情？



我尝试过：

My program is written in regular C in Visual Studio 2017 and runs on Windows 10.

It reads binary files into memory and extracts out information. If I process a large number (over 100) of really large files (50-75MB) I get a HeapAlloc error. I'm doing a HeapAlloc, processing the file, and then doing HeapFree. For some reason the heap keeps increasing in size until it hits the limit for 32bit applications.

I was under the impression that if I did a HeapFree, the next HeapAlloc would reuse the memory already used by the heap. It appears that isn't the case.

What should I be doing differently?

What I have tried:

// do this once at the start
hHeap = GetProcessHeap();

// the following once per file

hFile = CreateFile(lpszLibraryName,GENERIC_READ, FILE_SHARE_READ, NULL,
                    OPEN_EXISTING, 0, NULL);

dwFileSize = GetFileSize(hFile, &dwSizeHigh);

lpHeapData = HeapAlloc(hHeap, HEAP_ZERO_MEMORY, dwFileSize + 1);

ReadFile(hFile, lpHeapData, dwFileSize, &dwBytesRead, NULL);

... process the file data ...

HeapFree(hHeap, 0, lpHeapData);

CloseHandle(hFile);

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