Use faster method to wipe files

[Andrew Ziem]

To improve speed, use mmap (when available) to wipe overwrite files and overwrite free space.

[ROCKNROLLKID (slinger1410-deactivatedaccount)]

Hello Andrew. Have you investigated in this to see if this actually does improve the speed of wiping free space? If so, I would like to see how much of a improvement this is.

[Andrew Ziem (ahziem1)]

I have not checked in BleachBit, but I expect a significant boost.

[ROCKNROLLKID (slinger1410-deactivatedaccount)]

Maybe you could also check into what Eraser uses for wipe methods. There might even be something even better then mmap to use.

Eraser is open-source, so it should be easy to figure out how it works and all. Here is there source code: https://sourceforge.net/p/eraser/code/HEAD/tree/

[Andrew Ziem (ahziem1)]

The new method in the "wipe" branch (not the "master") branch on Windows systems with local NTFS and FAT32 file systems uses a more accurate and probably faster method. The last alpha (January 15) had it, but it was was buggy, so soon I will publish another release.

[Andrew Ziem (ahziem1)]

I re-scoped this ticket to just wiping files. Feel free to open another ticket for free space. I'm trying to put all new requests in GitHub, so feel free to file it there. Thanks.