Crash when playing a scenario with a set trigger

[jcelerier]

Trace :

0   std::__cxx11::list<std::function<void (bool)>>::erase(std::_List_const_iterator<std::function<void (bool)>>)    list.tcc    155 0x7fffe4c7ef0c  
1   OSSIA::CallbackContainer<std::function<void (bool)>>::removeCallback(std::_List_const_iterator<std::function<void (bool)>>) CallbackContainer.h 52  0x7fffe4c7e5c4  
2   JamomaExpressionAtom::removeCallback(std::_List_const_iterator<std::function<void (bool)>>) ExpressionAtom.cpp  123 0x7fffe4c93e85  
3   JamomaTimeNode::observeExpressionResult TimeNode.cpp    236 0x7fffe4ca8b3a  
4   JamomaTimeNode::process TimeNode.cpp    211 0x7fffe4ca88aa  
5   JamomaTimeNode::process TimeNode.cpp    147 0x7fffe4ca82a3  
6   JamomaScenario::state   Scenario.cpp    74  0x7fffe4c64d1a  
7   JamomaTimeConstraint::state TimeConstraint.cpp  130 0x7fffe4c77b4e  
8   JamomaTimeConstraint::ClockCallback TimeConstraint.cpp  228 0x7fffe4c76c4c  
9   std::_Mem_fn_base<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char), true>::operator()<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char, void>(JamomaTimeConstraint *, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&) const   functional  600 0x7fffe4c7b6fb  
10  std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>::__call<void, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&, 0ul, 1ul, 2ul, 3ul>(std::tuple<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&>&&, std::_Index_tuple<0ul, 1ul, 2ul, 3ul>)  functional  1073    0x7fffe4c7b5c5  
11  std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>::operator()<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char, void>(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&) functional  1131    0x7fffe4c7b4c7  
12  std::_Function_handler<void (OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char), std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>>::_M_invoke(std::_Any_data const&, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&)  functional  1871    0x7fffe4c7b16c  
13  std::function<void (OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)>::operator()(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char) const    functional  2271    0x7fffe4c9a656  
14  JamomaClock::tick   Clock.cpp   186 0x7fffe4c99b08  
15  virtual thunk to JamomaClock::tick()    Clock.cpp   112 0x7fffe4c99c32  
16  JamomaScenario::state   Scenario.cpp    87  0x7fffe4c64f9c  
17  JamomaTimeConstraint::state TimeConstraint.cpp  130 0x7fffe4c77b4e  
18  JamomaTimeConstraint::ClockCallback TimeConstraint.cpp  228 0x7fffe4c76c4c  
19  std::_Mem_fn_base<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char), true>::operator()<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char, void>(JamomaTimeConstraint *, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&) const   functional  600 0x7fffe4c7b6fb  
20  std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>::__call<void, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&, 0ul, 1ul, 2ul, 3ul>(std::tuple<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&>&&, std::_Index_tuple<0ul, 1ul, 2ul, 3ul>)  functional  1073    0x7fffe4c7b5c5  
21  std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>::operator()<OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char, void>(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&) functional  1131    0x7fffe4c7b4c7  
22  std::_Function_handler<void (OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char), std::_Bind<std::_Mem_fn<void (JamomaTimeConstraint:: *)(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)> (JamomaTimeConstraint *, std::_Placeholder<1>, std::_Placeholder<2>, std::_Placeholder<3>)>>::_M_invoke(std::_Any_data const&, OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char&&)  functional  1871    0x7fffe4c7b16c  
23  std::function<void (OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char)>::operator()(OSSIA::TimeValue const&, OSSIA::TimeValue const&, unsigned char) const    functional  2271    0x7fffe4c9a656  
24  JamomaClock::tick   Clock.cpp   186 0x7fffe4c99b08  
25  JamomaClock::threadCallback Clock.cpp   294 0x7fffe4c99457  
26  std::_Mem_fn_base<void (JamomaClock:: *)(), true>::operator()<, void>(JamomaClock *) const  functional  600 0x7fffe4c9cca9  
27  std::_Bind_simple<std::_Mem_fn<void (JamomaClock:: *)()> (JamomaClock *)>::_M_invoke<0ul>(std::_Index_tuple<0ul>)   functional  1530    0x7fffe4c9cc12  
28  std::_Bind_simple<std::_Mem_fn<void (JamomaClock:: *)()> (JamomaClock *)>::operator()() functional  1520    0x7fffe4c9cbc5  
29  std::thread::_Impl<std::_Bind_simple<std::_Mem_fn<void (JamomaClock:: *)()> (JamomaClock *)>>::_M_run() thread  115 0x7fffe4c9c8d9  
30  ??          0x7ffff5ade5c0  
31  start_thread    /usr/lib/debug/lib/x86_64-linux-gnu/libpthread-2.19.so  309 0x7ffff4f520a4  
32  clone   /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so    111 0x7ffff524d06d  

From the looks of it it happens because on TimeNode.cpp:236, the argument of removeCallback is bogus.

[theod]

do you have a scenario to reproduce this crash ?
because I tried to do the same (with 1 == 2 expression) and it never crashes

[theod]

I've never encountered such a bug and it seems you have made some work to check the existence of the callback before to erase it so I close the issue

[jcelerier]

Yes, it occured because the value was not initialized, hence 90% of the
time it would be initialized to 0 which would work and sometimes it would
randomly crash.

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Jean-Michaël Celerier
http://www.jcelerier.name

On Fri, Nov 20, 2015 at 12:24 AM, theod [email protected] wrote:

Closed #3 #3.

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