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make connection/emission debugging of PBD::Signal more useful/informative

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This commit is contained in:
Paul Davis 2025-06-06 09:07:45 -06:00
parent 5e83fc95b4
commit cc435bcd0f
1 changed files with 8 additions and 2 deletions
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10
libs/pbd/pbd/signals.h
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@ -435,7 +435,7 @@ SignalWithCombiner<Combiner, R(A...)>::operator() (A... a)
{
#ifdef DEBUG_PBD_SIGNAL_EMISSION
if (_debug_emission) {
std::cerr << "------ Signal @ " << this << " emission process begins\n";
std::cerr << "------ Signal @ " << this << " emission process begins with " << _slots.size() << std::endl;
PBD::stacktrace (std::cerr, 19);
}
#endif
@ -455,7 +455,7 @@ SignalWithCombiner<Combiner, R(A...)>::operator() (A... a)
* allocation. That will only happen if the number of
* connections to this signal exceeds the value of nslots
* defined above. As of April 2025, the maximum number of
* connections appears to be ntracks+1.
* connections appears to be ntracks+1.
*/
for (auto const & [connection,functor] : _slots) {
s.push_back (connection.get());
@ -492,7 +492,13 @@ SignalWithCombiner<Combiner, R(A...)>::operator() (A... a)
}
#endif
functor (a...);
} else {
#ifdef DEBUG_PBD_SIGNAL_EMISSION
if (_debug_emission) {
std::cerr << "signal @ " << this << " connection " << c << " of " << _slots.size() << " was no longer in the slot list\n";
}
}
#endif
}
#ifdef DEBUG_PBD_SIGNAL_EMISSION