Re: [Caml-list] Using C threads

[Dmitry Bely <dmitry.bely@gmail.com>]

I see. Not ocaml thread function is used so threads.cma is not linked.
You are right. Probably this deserves a bug report:
caml_c_thread_register() can check that no master lock still exists
and initialize it if necessary.

- Dmitry Bely

On Fri, Mar 4, 2011 at 2:46 AM, Niki Yoshiuchi <aplusbi@gmail.com> wrote:
> My main program is in OCaml.  Thread.thread_initialize is only called
> if you actually use the module in question.  I tested this with some
> simple code:
>
> main.ml: (ocamlc -c main.ml)
>
> let _ = Printf.printf "Main\n"
>
> test.ml: (ocamlc -c test.ml)
>
> let _ = Printf.printf "Test\n"
>
> test2.ml: (ocamlc -o test2.cma -a test2.ml)
>
> let _ Printf.printf "Test2\n"
>
> ocamlc test2.cma test.cmo main.cmo
> ./a.out
> Test
> Main
>
> "Test2" never gets printed.
>
> On Thu, Mar 3, 2011 at 6:38 PM, Dmitry Bely <dmitry.bely@gmail.com> wrote:
>> On Fri, Mar 4, 2011 at 2:23 AM, Niki Yoshiuchi <aplusbi@gmail.com> wrote:
>>> Yes, I have (you can't use caml_c_thread_register() without it).
>>> However it appears that the flag doesn't run the code in the module.
>>
>> If you link your program as described in the manual:
>>
>> ocamlc -thread other options unix.cma threads.cma other files
>> ocamlopt -thread other options unix.cmxa threads.cmxa other files
>>
>> Thread.thread_initialize should be called automatically by ocaml
>> runtime during startup. If it's not called, something is broken in
>> your system. Do you have the main program in Ocaml? If not, do you
>> call caml_startup() from your C code?
>>
>> - Dmitry Bely
>>
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