Código
#include <iostream> #include <thread> using namespace std; class FOO { public: void do_something () { cout<<"cout somethin\n"; } }; int main () { FOO foo; std::thread t (&FOO::do_something,&foo); t.join(); }
Cuando hago un
Código
valgrind --tool=drd ./oncordia
donde oncordia se llama mi ejecutable. Ejecuto varias veces ese comando hasta que en una oportunidad obtengo:
:
Código
==6218== drd, a thread error detector ==6218== Copyright (C) 2006-2010, and GNU GPL'd, by Bart Van Assche. ==6218== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==6218== Command: ./oncordia ==6218== cout somethin ==6218== Conflicting store by thread 1 at 0x05b5d050 size 8 ==6218== at 0x418E62: std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >::~_Impl() (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x419099: std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::operator()(std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*) const (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x418EDC: std::_Sp_counted_deleter<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2>::_M_dispose() (shared_ptr_base.h:351) ==6218== by 0x4180B7: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:146) ==6218== by 0x417F62: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count() (shared_ptr_base.h:551) ==6218== by 0x417E99: std::__shared_ptr<std::thread::_Impl_base, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr() (shared_ptr_base.h:751) ==6218== by 0x417EB3: std::shared_ptr<std::thread::_Impl_base>::~shared_ptr() (shared_ptr.h:93) ==6218== by 0x418037: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== by 0x417CCB: main (main.cpp:18) ==6218== Address 0x5b5d050 is at offset 32 from 0x5b5d030. Allocation context: ==6218== at 0x4C2AAB7: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_drd-amd64-linux.so) ==6218== by 0x418A5F: __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) (new_allocator.h:92) ==6218== by 0x418846: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:517) ==6218== by 0x418775: std::__shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:986) ==6218== by 0x4186C1: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:313) ==6218== by 0x4185A3: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::allocate_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:531) ==6218== by 0x418360: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::make_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:547) ==6218== by 0x4181BF: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::thread::_M_make_routine<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (thread:194) ==6218== by 0x418005: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== by 0x417CCB: main (main.cpp:18) ==6218== Other segment start (thread 2) ==6218== Other segment end (thread 2) ==6218== ==6218== Conflicting store by thread 1 at 0x05b5d050 size 8 ==6218== at 0x417EC6: std::thread::_Impl_base::~_Impl_base() (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x418E74: std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >::~_Impl() (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x419099: std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::operator()(std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*) const (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x418EDC: std::_Sp_counted_deleter<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2>::_M_dispose() (shared_ptr_base.h:351) ==6218== by 0x4180B7: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:146) ==6218== by 0x417F62: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count() (shared_ptr_base.h:551) ==6218== by 0x417E99: std::__shared_ptr<std::thread::_Impl_base, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr() (shared_ptr_base.h:751) ==6218== by 0x417EB3: std::shared_ptr<std::thread::_Impl_base>::~shared_ptr() (shared_ptr.h:93) ==6218== by 0x418037: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== by 0x417CCB: main (main.cpp:18) ==6218== Address 0x5b5d050 is at offset 32 from 0x5b5d030. Allocation context: ==6218== at 0x4C2AAB7: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_drd-amd64-linux.so) ==6218== by 0x418A5F: __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) (new_allocator.h:92) ==6218== by 0x418846: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:517) ==6218== by 0x418775: std::__shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:986) ==6218== by 0x4186C1: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:313) ==6218== by 0x4185A3: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::allocate_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:531) ==6218== by 0x418360: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::make_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:547) ==6218== by 0x4181BF: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::thread::_M_make_routine<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (thread:194) ==6218== by 0x418005: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== by 0x417CCB: main (main.cpp:18) ==6218== Other segment start (thread 2) ==6218== Other segment end (thread 2) ==6218== ==6218== Conflicting load by thread 1 at 0x05b5d060 size 8 ==6218== at 0x417F4C: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count() (shared_ptr_base.h:550) ==6218== by 0x417E99: std::__shared_ptr<std::thread::_Impl_base, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr() (shared_ptr_base.h:751) ==6218== by 0x417EB3: std::shared_ptr<std::thread::_Impl_base>::~shared_ptr() (shared_ptr.h:93) ==6218== by 0x417EDC: std::thread::_Impl_base::~_Impl_base() (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x418E74: std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >::~_Impl() (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x419099: std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::operator()(std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*) const (in /home/ezequiel/projects/oncordia/build/oncordia) ==6218== by 0x418EDC: std::_Sp_counted_deleter<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::_Sp_destroy_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2>::_M_dispose() (shared_ptr_base.h:351) ==6218== by 0x4180B7: std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() (shared_ptr_base.h:146) ==6218== by 0x417F62: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count() (shared_ptr_base.h:551) ==6218== by 0x417E99: std::__shared_ptr<std::thread::_Impl_base, (__gnu_cxx::_Lock_policy)2>::~__shared_ptr() (shared_ptr_base.h:751) ==6218== by 0x417EB3: std::shared_ptr<std::thread::_Impl_base>::~shared_ptr() (shared_ptr.h:93) ==6218== by 0x418037: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== Address 0x5b5d060 is at offset 48 from 0x5b5d030. Allocation context: ==6218== at 0x4C2AAB7: operator new(unsigned long) (in /usr/lib64/valgrind/vgpreload_drd-amd64-linux.so) ==6218== by 0x418A5F: __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) (new_allocator.h:92) ==6218== by 0x418846: std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >*, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:517) ==6218== by 0x418775: std::__shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr_base.h:986) ==6218== by 0x4186C1: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >::shared_ptr<std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Sp_make_shared_tag, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:313) ==6218== by 0x4185A3: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::allocate_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::allocator<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > const&, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:531) ==6218== by 0x418360: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::make_shared<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >, std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (shared_ptr.h:547) ==6218== by 0x4181BF: std::shared_ptr<std::thread::_Impl<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> > > std::thread::_M_make_routine<std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)> >(std::_Bind_result<void, std::_Mem_fn<void (FOO::*)()> ()(FOO*)>&&) (thread:194) ==6218== by 0x418005: std::thread::thread<void (FOO::*)(), FOO*>(void (FOO::*&&)(), FOO*&&) (thread:135) ==6218== by 0x417CCB: main (main.cpp:18) ==6218== Other segment start (thread 2) ==6218== Other segment end (thread 2) ==6218== ==6218== ==6218== For counts of detected and suppressed errors, rerun with: -v
gracias!