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From: Chris Vine <chris@cvine.freeserve.co.uk>
To: Panicz Maciej Godek <godek.maciek@gmail.com>
Cc: "guile-user@gnu.org" <guile-user@gnu.org>
Subject: Re: libguile thread safety
Date: Sat, 4 Jan 2014 00:22:52 +0000	[thread overview]
Message-ID: <20140104002252.465aef65@bother.homenet> (raw)
In-Reply-To: <CAMFYt2afwjUvp4nfs+oAB8Tbng8Boui+eFguHFVu1g4FNxkmog@mail.gmail.com>

On Sat, 4 Jan 2014 01:08:12 +0100
Panicz Maciej Godek <godek.maciek@gmail.com> wrote:
> Hi,
> I have never used the pthread library directly, but would it be
> possible for your program to use scm_spawn_thread instead? (according
> to the manual, it starts a new thread in guile mode, but I guess it
> needs to be run in guile mode as well)

That wouldn't help in my usage case I am afraid.  Essentially I am
trying to integrate some scheme code with some C++ code, which involves
running callable objects (tasks) on a thread pool.  Some will be native
C++ lambdas or other function objects, and some will be scheme code I
was intending to run on the guile VM. That seemed a natural fit for
libguile, but I was getting intermittent crashes when two tasks
involving scheme code on the VM tried to start at approximately the same
time.

I was hoping there was something obvious in the test case that I was
doing wrong. On the other hand, if it is a guile bug then I will have
to see if I can work around it.  If I can't, I may have to abandon this
aspect of the project and go C++ only.  If I have to serialize all
running of scheme code on libguile it would slow other stuff down too
much.

I am still hopeful someone will tell me I have got something wrong in
the test case.

Chris



  reply	other threads:[~2014-01-04  0:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-03 23:34 libguile thread safety Chris Vine
2014-01-04  0:00 ` Ludovic Courtès
2014-01-04 17:19   ` Chris Vine
2014-01-04  0:08 ` Panicz Maciej Godek
2014-01-04  0:22   ` Chris Vine [this message]
2014-01-04  0:56     ` Panicz Maciej Godek
2014-01-04  1:22       ` Panicz Maciej Godek
2014-01-04  9:39         ` Chris Vine
2014-01-04 21:28           ` Mark H Weaver
2014-01-04  1:59 ` Mark H Weaver
2014-01-04  9:50   ` Chris Vine
2014-01-04 12:44   ` Chris Vine
2014-01-04 15:01     ` Panicz Maciej Godek
2014-01-04 17:16       ` Chris Vine
2014-01-04 19:37       ` Mark H Weaver
2014-01-04 21:01         ` Chris Vine
2014-01-04 22:43           ` Panicz Maciej Godek
2014-01-04 23:31             ` Chris Vine
2014-01-05 13:15               ` Panicz Maciej Godek
2014-01-05 17:37                 ` Mark H Weaver
2014-03-18 10:49                   ` Chris Vine
2014-03-18 15:22                     ` Mark H Weaver
2014-03-18 19:32                       ` Chris Vine

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