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https://issues.apache.org/jira/browse/PROTON-1371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Stitcher updated PROTON-1371:
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Description:
If you have a libqpid-proton-cpp compiled with C\+\+11 and then link to it
using a C\+\+03 and use the {{proton::container::schedule}} API then the
application will crash. This is because there is an extra virtual function
present in the middle of the C\+\+11 vtable compared to the C\+\+03 vtable. So
that when used from '03 the wrong member function gets called.
The extra member function is present because of conditional compilation
dependent on the C\+\+ version doing the compilation.
This should also be a problem the other way round too, so using a
libqpid-proton-cpp compiled with C\+\+03 from C\+\+11 will cause there to be
one fewer entry in the vtable, and using schedule will either get the wrong
version of schedule or call an entry of the end of the vtable.
was:
If you have a libqpid-proton-cpp compiled with C\+\+11 and then link to it
using a C\+\+03 and use the proton::container::schedule API then the
application will crash. This is because there is an extra virtual function
present in the middle of the C\+\+11 vtable compared to the C\+\+03 vtable. So
that when used from '03 the wrong member function gets called.
The extra member function is present because of conditional compilation
dependent on the C\+\+ version doing the compilation.
This should also be a problem the other way round too, so using a
libqpid-proton-cpp compiled with C\+\+03 from C\+\+11 will cause there to be
one fewer entry in the vtable, and using schedule will either get the wrong
version of schedule or call an entry of the end of the vtable.
> proton::container::schedule crashes when mixing different language versions
> ---------------------------------------------------------------------------
>
> Key: PROTON-1371
> URL: https://issues.apache.org/jira/browse/PROTON-1371
> Project: Qpid Proton
> Issue Type: Bug
> Components: cpp-binding
> Affects Versions: 0.14.0
> Reporter: Andrew Stitcher
> Assignee: Andrew Stitcher
> Priority: Blocker
> Fix For: 0.16.0
>
>
> If you have a libqpid-proton-cpp compiled with C\+\+11 and then link to it
> using a C\+\+03 and use the {{proton::container::schedule}} API then the
> application will crash. This is because there is an extra virtual function
> present in the middle of the C\+\+11 vtable compared to the C\+\+03 vtable.
> So that when used from '03 the wrong member function gets called.
> The extra member function is present because of conditional compilation
> dependent on the C\+\+ version doing the compilation.
> This should also be a problem the other way round too, so using a
> libqpid-proton-cpp compiled with C\+\+03 from C\+\+11 will cause there to be
> one fewer entry in the vtable, and using schedule will either get the wrong
> version of schedule or call an entry of the end of the vtable.
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