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Change C++ API to use the ComponentHandle

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This commit is contained in:
Olivier Goffart 2020-11-10 19:28:34 +01:00
parent 8f362ead43
commit d6a440aa4a
65 changed files with 222 additions and 141 deletions
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31
api/sixtyfps-cpp/include/vtable.h
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@ -65,9 +65,10 @@ struct VRcInner {
template<typename VTable_, typename X_> friend class VRc;
template<typename VTable_, typename X_> friend class VWeak;
private:
const VTable *vtable;
int strong_ref;
int weak_ref;
VRcInner() : layout {} {}
const VTable *vtable = &X::component_type;
int strong_ref = 1;
int weak_ref = 1;
union {
X data;
Layout layout;
@ -79,17 +80,17 @@ struct Dyn {};
template<typename VTable, typename X = Dyn>
class VRc {
VRcInner<VTable, X> *inner;
VRc(VRcInner<VTable, X> inner) : inner(inner) {}
VRc(VRcInner<VTable, X> *inner) : inner(inner) {}
template<typename VTable_, typename X_> friend class VWeak;
public:
~VRc() {
if (--inner->strong_ref) {
Layout layout = inner->vtable->drop_in_place(&inner->data);
if (!--inner->strong_ref) {
Layout layout = inner->vtable->drop_in_place({inner->vtable, &inner->data});
layout.size += sizeof(const VTable *) + 2 * sizeof(int);
layout.align = std::max<size_t>(layout.align, alignof(VRcInner<VTable, Dyn>));
inner->layout = layout;
if (--inner->weak_ref) {
inner->vtable->dealloc(layout);
if (!--inner->weak_ref) {
inner->vtable->dealloc(inner->vtable, reinterpret_cast<uint8_t*>(inner), layout);
}
}
}
@ -104,12 +105,16 @@ public:
return *this;
}
template<typename ...Args> static VRc make(Args... args) {
return VRc(new VRcInner<VTable, X>{
X::component_type, 1, 1, X(args...)
});
auto mem = ::operator new(sizeof(VRcInner<VTable, X>), static_cast<std::align_val_t>(alignof(VRcInner<VTable, X>)));
auto inner = new (mem) VRcInner<VTable, X>;
new (&inner->data) X(args...);
return VRc(inner);
}
const X* operator->() const {
return &inner->data;
}
const X& operator*() const {
return inner->data;
}
};
@ -120,8 +125,8 @@ class VWeak {
public:
VWeak() = default;
~VWeak() {
if (inner && --inner->weak_ref) {
inner->vtable->dealloc(inner->layout);
if (inner && !--inner->weak_ref) {
inner->vtable->dealloc(inner->vtable, reinterpret_cast<uint8_t*>(inner), inner->layout);
}
}
VWeak(const VWeak &other): inner(other.inner) {