[MLton] Writing memory to disk ...

[Adam Goode]

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig59CF35985443AC88F2D908AA
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Wesley W. Terpstra wrote:
> On May 24, 2006, at 10:06 PM, Henry Cejtin wrote:
>> It isn't enough for write_safe to not abort.  You really want to do
>> the unlink
>> before the write.  The point is that if you don't, then if I kill the
>> ap via
>> control-C while it is doing the slow disk write and read (not
>> unlikely) then
>> the disk file is going to be left around.
>=20
> I already said I agree that this is better on Unix.
> However, you can't delete an open file under windows.
> If it's special-cased to be different, then fine.
>=20

Actually, you can sort of do this. There's a way to mark files so that
they are deleted on close. (I think this is how DeleteFile works in the
normal case on Windows.)


To make a temporary file for this heap-dumping on Windows:

First, you call GetTempPath to get the path for temporary files.

Then call GetTempFileName, passing the result of GetTempPath.

Finally, call CreateFile with the result of GetTempFileName. If you pass
 FILE_FLAG_DELETE_ON_CLOSE to CreateFile, the system will clean it up
for you.


I haven't tested this, just read the reference documentation:

http://msdn.microsoft.com/library/default.asp?url=3D/library/en-us/fileio=
/fs/createfile.asp
http://msdn.microsoft.com/library/default.asp?url=3D/library/en-us/fileio=
/fs/deletefile.asp


Thanks,

Adam




--------------enig59CF35985443AC88F2D908AA
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org

iD8DBQFEdMoXlenB4PQRJawRAiKKAKCWi9dD+k8xqa5BRXEMPc249GZkSACfcgvd
W6DX+nOrAiVeKns3QRrBHdM=
=z4yV
-----END PGP SIGNATURE-----

--------------enig59CF35985443AC88F2D908AA--