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Buffer.add_channel hangs
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Date: -- (:)
From: Stas Miasnikou <stas.miasnikou@g...>
Subject: Re: Buffer.add_channel hangs
On 3/17/10, Stas Miasnikou <stas.miasnikou@gmail.com> wrote:
> OCaml 3.11.1, OpenBSD 4.6, i386.
>
> I am trying to read whole file by doing:
>
> let read_file_bin name =
>   let ic = open_in_bin name in
>   let b = Buffer.create 1024 in
>   (try Buffer.add_channel b ic max_int with _ -> ()); (* <-- HERE *)
>   close_in ic;
>   Array.init (Buffer.length b) (fun i -> int_of_char (Buffer.nth b i))
>
> but it hangs on the line marked. Am I doing something wrong?

More on this, when doing:

let read_file_bin name =
  let ic = open_in_bin name in
  let b = Buffer.create 1024 in
  (try Buffer.add_channel b ic (n + 100) with _ -> ());
  close_in ic;
  print_int (Buffer.length b); print_newline ();
  Array.init (Buffer.length b) (fun i -> int_of_char (Buffer.nth b i))

With file length equal to n (65536) I get nothing read, i.e. after
reading Buffer.length b returns 0. Can anyone check this, so I know
whether this is OCaml or my OpenBSD 4.6 port of it issue?

Stas