Re: [Boost-users] Thread safety in Boost msm

Subject: Re: [Boost-users] Thread safety in Boost msm
From: Christophe Henry (christophe.j.henry_at_[hidden])
Date: 2013-02-18 16:34:50

>Hi,

>I am new to boost meta state library. I am building one app, where I have to use msm.

>My application has two threads, where they use same msm object as a shared resources. 

>Now will the msm be thread safe if both threads call process_event on the same msm object?

>Any idea is welcome.

>Thanks,

>Soumya P. Ukil 

Hi,

msm is as thread-safe as a STL container: it's not.
Different threads should not call process_event on the same state
machine object.
This means you'll have to serialize your calls to the object through a
synchronization mechanism.

HTH,
Christophe