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Prevent recursion of &on_change handlers.

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This change prevents &on_change handlers for a table from running if an
&on_change handler for the same table is already running.
This commit is contained in:
Johanna Amann 2020-02-03 12:33:13 -08:00
parent 7166cb7373
commit 7f9f66fce9
5 changed files with 46 additions and 3 deletions
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5
src/Val.cc
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@ -1933,7 +1933,7 @@ ListVal* TableVal::RecoverIndex(const HashKey* k) const
void TableVal::CallChangeFunc(const Val* index, Val* old_value, OnChangeType tpe)
{
if ( ! change_func || ! index )
if ( ! change_func || ! index || in_change_func )
return;
if ( ! table_type->IsSet() && ! old_value )
@ -1978,12 +1978,15 @@ void TableVal::CallChangeFunc(const Val* index, Val* old_value, OnChangeType tpe
if ( ! table_type->IsSet() )
vl.append(old_value->Ref());
in_change_func = true;
f->Call(&vl);
Unref(thefunc);
}
catch ( InterpreterException& e )
{
}
in_change_func = false;
}
Val* TableVal::Delete(const Val* index)