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chan: Lock PartBundle while binding animation

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This seems like the right thing to do that could prevent some potential race conditions; let me known if this is breaking anything.
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rdb 2021-11-28 16:21:59 +01:00
parent 480226a97a
commit c980643649
1 changed files with 4 additions and 1 deletions
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5
panda/src/chan/partBundle.cxx
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@ -599,6 +599,10 @@ do_bind_anim(AnimControl *control, AnimBundle *anim,
return false;
}
// Grabbing the lock early prevents any other thread in stage 0 from also
// trying to modify the channel list at the same time.
CDLockedReader cdata(_cycler);
plist<int> holes;
int channel_index = 0;
pick_channel_index(holes, channel_index);
@ -616,7 +620,6 @@ do_bind_anim(AnimControl *control, AnimBundle *anim,
subset.is_include_empty(), bound_joints, subset);
control->setup_anim(this, anim, channel_index, bound_joints);
CDReader cdata(_cycler);
determine_effective_channels(cdata);
return true;