Boost C++ Libraries: Ticket #2681: lwm_pthread fails to catch initialization error

cc set

Tue, 27 Jan 2009 15:32:31 GMT

cc olivier.langlois@… added

I can give more details on how I stumbled on the problem. I had this bad statement in my code which had the intent of reseting boost::shared_ptr

reset shared pointer my_ptr = boost::shared_ptr<MyClass>(static_cast<MyClass *>(NULL));

So for each 'reset', a new ref counter with its mutex was created. After few thousands of 'reset', pthread_mutex_init() eventually returned ENOMEM which was not catched by boost as described in the initial description.

and finally on the next pthread_mutex_lock with the unitialized mutex, on my OS (CentOS 4), the program just block inside the call and never return.

cc, owner, component changed

Fri, 05 Jun 2009 16:57:10 GMT

cc jwakely.boost@… added
owner changed from Anthony Williams to Peter Dimov
component threads → smart_ptr

I think lwm_pthreads.hpp belongs to the smart_ptr component not threads.

Boost.Threads asserts that the pthread calls succeed, e.g.

        BOOST_VERIFY( !pthread_mutex_init(&m_, 0) );

but I don't know if lightweight_mutex wants to avoid that overhead.

Peter Dimov — Thu, 26 Nov 2009 20:55:06 GMT

(In [57953]) Add error checking to lwm_pthreads.hpp. Refs #2681.

status changed

Peter Dimov — Thu, 26 Nov 2009 22:18:44 GMT

status new → assigned

status changed; resolution set

Peter Dimov — Mon, 30 Nov 2009 20:25:03 GMT

status assigned → closed
resolution → fixed

(In [58065]) Merge [57953] to release. Fixes #2681.