Will Haskell be commercialized in the future?

Hannah Schroeter uk1o@rz.uni-karlsruhe.de
Thu, 18 Jan 2001 00:35:28 +0100


[a somewhat older mail]

On Mon, Nov 27, 2000 at 08:53:05PM +0100, Michal Gajda wrote:
> [...]

> I often use Haskell in imperative style(for example writting a toy
> [...]

I also do. Perhaps not super-often, but more than once.

- A program to interface to BSD's /dev/tun* and/or /dev/bpf* to
  simulate network links with losses/delays (configurable).
  ~150 lines of C + ~ 1700 lines of Haskell with some GHC extensions.
  One efficiency optimization was that I used network buffers
  constructed out of MutableByteArray#s together with some
  administrative information (an offset into the MBA to designate
  the real packet start - necessary to leave room for in-place header
  prefixing / removal, the real packet length, the buffer length ...).
  Written single threaded with manual select calls (no conc Haskell).

- HTTP testers (two of them with slightly different tasks).

- file generators/translators (diverse, e.g. a generator for test
  scripts for one of the above-named HTTP tester)
  Of course, the latter often are something like
    foo <- readFile bar
    let baz = process_somehow foo
    writeFile blurb baz

Kind regards,