Re: [Boost-users] the thread safe boost serialization library is threadsafe?

From: Andrej van der Zee (mavdzee_at_[hidden])
Date: 2007-07-10 19:26:59

Thanks. That makes the library much less appealing
though. Is this threading-bug on all platforms, all
compilers, etc? Is it already, or will it be soon
fixed in SVN?
Cheers,
Andrej

--- Fei Liu <feiliu_at_[hidden]> wrote:

> I have verified that wrapping static mutex object
> around serialization 
> methods work. The performance degradation is quite
> noticeable though.
> 
> Fei
> Andrej van der Zee wrote:
> > For the time being, is it possible to use
> > serialization in multi-thread applications using
> > mutexes around serialization methods, or should it
> > totally be avoided?
> > Thanks,
> > Andrej
> >
> >
> >
> > --- Robert Ramey <ramey_at_[hidden]> wrote:
> >
> >   
> >> It has been determined that the boost
> serialization
> >> - contrary to
> >> intention - is not currently thread safe.  This
> will
> >> be addressed
> >> in a future release.
> >>
> >> Robert Ramey
> >>
> >> Fei Liu wrote:
> >>     
> >>> I am testing a multi-thread app which uses boost
> >>>       
> >> serialization
> >>     
> >>> library..I got the dreaded error:
> >>> *** glibc detected *** double free or corruption
> >>>       
> >> (fasttop):
> >>     
> >>> 0x0aed93d0 *** Aborted
> >>>
> >>> Using a core dump and gdb, here is a backtrace.
> It
> >>>       
> >> appears it crashed
> >>     
> >>> inside the multi-thread library. Any advice is
> >>>       
> >> appreciated..
> >>     
> >>> #0  0xb7f9a6be in
> >>>
> >>>       
> >
>
boost::serialization::extended_type_info::type_info_key_cmp
> >   
> >> ()
> >>     
> >>>   from
> >>>       
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >>> (gdb) bt
> >>> #0  0xb7f9a6be in
> >>>
> >>>       
> >
>
boost::serialization::extended_type_info::type_info_key_cmp
> >   
> >> ()
> >>     
> >>>   from
> >>>       
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >>> #1  0xb7f9a6f2 in
> >>>       
> >>
> boost::serialization::extended_type_info::operator<
> >>     
> >>> () from
> >>>       
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >>> #2  0xb7f9b43e in
> >>>
> >>>       
> >
>
std::_Rb_tree<boost::serialization::extended_type_info
> >   
> >> const*,
> >>     
> >>> boost::serialization::extended_type_info const*,
> >>>
> >>>       
> >
>
std::_Identity<boost::serialization::extended_type_info
> >   
> >> const*>,
> >>     
> >
>
boost::serialization::detail::tkmap::type_info_compare,
> >   
> >
>
std::allocator<boost::serialization::extended_type_info
> >   
> >> const*>
> >>     
> >>>>>> insert_unique () from
> >>>>>>             
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >>> #3  0xb7f9adfb in
> >>>  
> >>>       
> >
>
boost::serialization::extended_type_info::self_register
> >   
> >> () from
> >>     
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >> #4
> >>     
> >>> 0x08053c23 in
> >>>
> >>>       
> >
>
boost::archive::detail::iserializer<boost::archive::xml_iarchive,
> >   
> >>> std::map<std::string, std::string,
> >>>       
> >> std::less<std::string>,
> >>     
> >>> std::allocator<std::pair<std::string const,
> >>>       
> >> std::string> > >
> >>     
> >>>>>> load_object_data (this=0x805ba7c,
> >>>>>>             
> >> ar=@0x933f71e0, x=0x933f73a8,
> >>     
> >>>    file_version=2470408016) at
> >>>       
> >> extended_type_info_typeid.hpp:77
> >>     
> >>> #5  0xb7f91900 in
> >>>       
> >>
> boost::archive::detail::basic_iarchive::load_object
> >>     
> >>> () from
> >>>       
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >>> #6  0x080537a7 in
> >>>
> >>>       
> >
>
boost::archive::detail::iserializer<boost::archive::xml_iarchive,
> >   
> >>> ns::ge::rule>::load_object_data (this=0x805ba60,
> >>>    ar=@0x933f71e0, x=0x933f73a8, file_version=4)
> >>>       
> >> at
> >>     
> >>> iserializer.hpp:143 #7  0xb7f91900 in
> >>>
> >>>       
> >>
> boost::archive::detail::basic_iarchive::load_object
> >> () from
> >>     
> >
>
/usr/lib/libboost_serialization-gcc34-mt-1_34.so.1.34.0
> >   
> >> #8
> >>     
> >>> 0x08052c82 in
> >>>       
> >> utils::xml::deserialize<ns::ge::rule> (s=@0x4,
> >>     
> >>> is=@0xb7fb7f1e) at iserializer.hpp:143 #9 
> >>>       
> >> 0x08052f41 in
> >>     
> >>> ns::ge::rules<ns::ge::rule>::process_xml
> >>>       
> >> (this=0x805b9a0,
> >>     
> >>> xml=@0x933f7410) at ns_ge_rules.h:54 #10
> >>>       
> >> 0x08053353 in
> >>     
> 
=== message truncated ===

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