Re: [Boost-users] [interprocess] managed_shm->find call causes assertion

Subject: Re: [Boost-users] [interprocess] managed_shm->find call causes assertion
From: Moritz (mokoman_at_[hidden])
Date: 2010-04-08 13:32:24

Hi again,

the problem seems to be that I work with templates. I wrote a method 
that looks like this:

template <typename ObjectType> ObjectType * get_object_pointer() const
{
std::pair<ObjectType*, std::size_t> p = _managed_shm->find<ObjectType>( 
ipc::unique_instance );
return p.first;
}

If I remove the template and add a type the assert will not appear.

I am confused ...

Moritz wrote:
> 
> Hi,
> 
> posted the wrong line number. Should be 107:
> 
> inline void interprocess_recursive_mutex::unlock()
> {
>    int res = 0;
>    res = pthread_mutex_unlock(&m_mut);
>    assert(res == 0); // <- HERE!
> }
> 
> 
> Moritz wrote:
>> Hi,
>>
>> I have a managed_shared_memory segment which contains a 
>> unique_instance of an object. When I try to call
>>         managed_shm->find<ObjectType>( ipc::unique_instance );
>>
>> I get the following assertion:
>>
>> /usr/include/boost/interprocess/sync/posix/interprocess_recursive_mutex.hpp:110: 
>> void boost::interprocess::interprocess_recursive_mutex::unlock(): 
>> Assertion `res == 0' failed.
>> Aborted
>>
>> This only happens in Release-Mode (with gcc -s -O2). I am not able to 
>> build a minimum example but I also can not track the problem. Any 
>> suggests?
>>
>> Kind regards