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C#: Use get_instance_binding instead of set #84947

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merged 1 commit into from
Apr 4, 2024
Merged

C#: Use get_instance_binding instead of set #84947

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34 changes: 13 additions & 21 deletions modules/mono/csharp_script.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1442,7 +1442,11 @@ GDExtensionBool CSharpLanguage::_instance_binding_reference_callback(void *p_tok
}

void *CSharpLanguage::get_instance_binding(Object *p_object) {
void *binding = p_object->get_instance_binding(get_singleton(), &_instance_binding_callbacks);
return p_object->get_instance_binding(get_singleton(), &_instance_binding_callbacks);
}

void *CSharpLanguage::get_instance_binding_with_setup(Object *p_object) {
void *binding = get_instance_binding(p_object);

// Initially this was in `_instance_binding_create_callback`. However, after the new instance
// binding re-write it was resulting in a deadlock in `_instance_binding_reference`, as
Expand All @@ -1467,11 +1471,7 @@ void *CSharpLanguage::get_existing_instance_binding(Object *p_object) {
#ifdef DEBUG_ENABLED
CRASH_COND(p_object->has_instance_binding(p_object));
#endif
return p_object->get_instance_binding(get_singleton(), &_instance_binding_callbacks);
}

void CSharpLanguage::set_instance_binding(Object *p_object, void *p_binding) {
p_object->set_instance_binding(get_singleton(), p_binding, &_instance_binding_callbacks);
return get_instance_binding(p_object);
}

bool CSharpLanguage::has_instance_binding(Object *p_object) {
Expand All @@ -1498,13 +1498,6 @@ void CSharpLanguage::tie_native_managed_to_unmanaged(GCHandleIntPtr p_gchandle_i
// Another reason for doing this is that this instance could outlive CSharpLanguage, which would
// be problematic when using a script. See: https://github.com/godotengine/godot/issues/25621

CSharpScriptBinding script_binding;

script_binding.inited = true;
script_binding.type_name = *p_native_name;
script_binding.gchandle = gchandle;
script_binding.owner = p_unmanaged;

if (p_ref_counted) {
// Unsafe refcount increment. The managed instance also counts as a reference.
// This way if the unmanaged world has no references to our owner
Expand All @@ -1520,14 +1513,13 @@ void CSharpLanguage::tie_native_managed_to_unmanaged(GCHandleIntPtr p_gchandle_i
// The object was just created, no script instance binding should have been attached
CRASH_COND(CSharpLanguage::has_instance_binding(p_unmanaged));

void *data;
{
MutexLock lock(CSharpLanguage::get_singleton()->get_language_bind_mutex());
data = (void *)CSharpLanguage::get_singleton()->insert_script_binding(p_unmanaged, script_binding);
}
void *binding = CSharpLanguage::get_singleton()->get_instance_binding(p_unmanaged);

// Should be thread safe because the object was just created and nothing else should be referencing it
CSharpLanguage::set_instance_binding(p_unmanaged, data);
CSharpScriptBinding &script_binding = ((RBMap<Object *, CSharpScriptBinding>::Element *)binding)->value();
script_binding.inited = true;
script_binding.type_name = *p_native_name;
script_binding.gchandle = gchandle;
script_binding.owner = p_unmanaged;
}

void CSharpLanguage::tie_user_managed_to_unmanaged(GCHandleIntPtr p_gchandle_intptr, Object *p_unmanaged, Ref<CSharpScript> *p_script, bool p_ref_counted) {
Expand Down Expand Up @@ -2097,7 +2089,7 @@ CSharpInstance::~CSharpInstance() {
bool die = _unreference_owner_unsafe();
CRASH_COND(die); // `owner_keep_alive` holds a reference, so it can't die

void *data = CSharpLanguage::get_instance_binding(owner);
void *data = CSharpLanguage::get_instance_binding_with_setup(owner);
CRASH_COND(data == nullptr);
CSharpScriptBinding &script_binding = ((RBMap<Object *, CSharpScriptBinding>::Element *)data)->get();
CRASH_COND(!script_binding.inited);
Expand Down
2 changes: 1 addition & 1 deletion modules/mono/csharp_script.h
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Original file line number Diff line number Diff line change
Expand Up @@ -364,7 +364,7 @@ class CSharpLanguage : public ScriptLanguage {
public:
static void *get_instance_binding(Object *p_object);
static void *get_existing_instance_binding(Object *p_object);
static void set_instance_binding(Object *p_object, void *p_binding);
static void *get_instance_binding_with_setup(Object *p_object);
static bool has_instance_binding(Object *p_object);

const Mutex &get_language_bind_mutex() {
Expand Down
4 changes: 2 additions & 2 deletions modules/mono/glue/runtime_interop.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -239,7 +239,7 @@ GCHandleIntPtr godotsharp_internal_unmanaged_get_instance_binding_managed(Object
CRASH_COND(!p_unmanaged);
#endif

void *data = CSharpLanguage::get_instance_binding(p_unmanaged);
void *data = CSharpLanguage::get_instance_binding_with_setup(p_unmanaged);
ERR_FAIL_NULL_V(data, { nullptr });
CSharpScriptBinding &script_binding = ((RBMap<Object *, CSharpScriptBinding>::Element *)data)->value();
ERR_FAIL_COND_V(!script_binding.inited, { nullptr });
Expand All @@ -252,7 +252,7 @@ GCHandleIntPtr godotsharp_internal_unmanaged_instance_binding_create_managed(Obj
CRASH_COND(!p_unmanaged);
#endif

void *data = CSharpLanguage::get_instance_binding(p_unmanaged);
void *data = CSharpLanguage::get_instance_binding_with_setup(p_unmanaged);
ERR_FAIL_NULL_V(data, { nullptr });
CSharpScriptBinding &script_binding = ((RBMap<Object *, CSharpScriptBinding>::Element *)data)->value();
ERR_FAIL_COND_V(!script_binding.inited, { nullptr });
Expand Down
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