Dougal Stanton ha scritto:
On Wed, Sep 17, 2008 at 1:17 PM, Manlio Perillo
<[EMAIL PROTECTED]> wrote:
The Python tempfile module, as an example, implements a wrapper around
mkstemp function that does exactly this, and the code is portable; on
Windows it uses O_TEMPORARY_FILE flag, on POSIX systems the file is
unlink-ed as soon as it is created (but note that the code is not signal
safe - well, many functions in the Python standard library are not signal
safe).
Something like:
withTempFile :: String -> ((FilePath, Handle) -> IO b) -> IO b
withTempFile name action = do
tmpdir <- getTemporaryDirectory
bracket
(openTempFile tmpdir name)
(\(fp,h) -> hClose h >> removeFile fp)
action
I don't know if this has the safety requirements you mean?
Yes, this is the ideal solution for Haskell.
But since GHC does not implement such a function, I was curious to know
why it don't even implement a function that make sure the temporary file
is removed.
Thanks Manlio Perillo
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