> I implemented a trivial "database", stored in ordinary files, > and had to > ensure mutual exclusion of database access between > simultaneously running > CGI scripts. Since each CGI run is short, I simply locked the entire > database for the entire run. Claiming a lock on a file is > easy in C (well, > it takes 18 lines...), but there's nothing in the standard Haskell > libraries that can do it. So I borrowed a little C code from > the net, and > called it via the FFI.
Locking support is available in the unix package distributed with GHC. See: http://www.haskell.org/ghc/docs/latest/html/unix/System.Posix.IO.html#7 Cheers, Simon _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell
