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Use IntrusivePtr in TableVal::CallExpireFunc

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This commit is contained in:
Jon Siwek 2020-03-23 12:07:11 -07:00
parent 7a4ce9fb51
commit 0b5a18495d
2 changed files with 6 additions and 20 deletions
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23
src/Val.cc
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@ -2348,7 +2348,7 @@ void TableVal::DoExpire(double t)
if ( expire_func ) if ( expire_func )
{ {
idx = RecoverIndex(k); idx = RecoverIndex(k);
double secs = CallExpireFunc(idx->Ref()); double secs = CallExpireFunc({NewRef{}, idx});
// It's possible that the user-provided // It's possible that the user-provided
// function modified or deleted the table // function modified or deleted the table
@ -2439,13 +2439,10 @@ double TableVal::GetExpireTime()
return -1; return -1;
} }
double TableVal::CallExpireFunc(Val* idx) double TableVal::CallExpireFunc(IntrusivePtr<Val> idx)
{ {
if ( ! expire_func ) if ( ! expire_func )
{
Unref(idx);
return 0; return 0;
}
double secs = 0; double secs = 0;
@ -2454,16 +2451,12 @@ double TableVal::CallExpireFunc(Val* idx)
auto vf = expire_func->Eval(nullptr); auto vf = expire_func->Eval(nullptr);
if ( ! vf ) if ( ! vf )
{
// Will have been reported already. // Will have been reported already.
Unref(idx);
return 0; return 0;
}
if ( vf->Type()->Tag() != TYPE_FUNC ) if ( vf->Type()->Tag() != TYPE_FUNC )
{ {
vf->Error("not a function"); vf->Error("not a function");
Unref(idx);
return 0; return 0;
} }
@ -2481,25 +2474,19 @@ double TableVal::CallExpireFunc(Val* idx)
{ {
for ( const auto& v : *idx->AsListVal()->Vals() ) for ( const auto& v : *idx->AsListVal()->Vals() )
vl.append(v->Ref()); vl.append(v->Ref());
Unref(idx);
} }
else else
{ {
ListVal* idx_list = idx->AsListVal(); ListVal* idx_list = idx->AsListVal();
// Flatten if only one element // Flatten if only one element
if ( idx_list->Length() == 1 ) if ( idx_list->Length() == 1 )
{ idx = {NewRef{}, idx_list->Index(0)};
Val* old = idx;
idx = idx_list->Index(0)->Ref();
Unref(old);
}
vl.append(idx); vl.append(idx.release());
} }
} }
else else
vl.append(idx); vl.append(idx.release());
auto result = f->Call(&vl); auto result = f->Call(&vl);

3
src/Val.h
View file

@ -851,8 +851,7 @@ protected:
double GetExpireTime(); double GetExpireTime();
// Calls &expire_func and returns its return interval; // Calls &expire_func and returns its return interval;
// takes ownership of the reference. double CallExpireFunc(IntrusivePtr<Val> idx);
double CallExpireFunc(Val *idx);
// Enum for the different kinds of changes an &on_change handler can see // Enum for the different kinds of changes an &on_change handler can see
enum OnChangeType { ELEMENT_NEW, ELEMENT_CHANGED, ELEMENT_REMOVED, ELEMENT_EXPIRED }; enum OnChangeType { ELEMENT_NEW, ELEMENT_CHANGED, ELEMENT_REMOVED, ELEMENT_EXPIRED };