initial commit, 4.5 stable

modules/mono/managed_callable.cpp

@@ -0,0 +1,134 @@
+/**************************************************************************/
+/*  managed_callable.cpp                                                  */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "managed_callable.h"
+
+#include "csharp_script.h"
+#include "mono_gd/gd_mono_cache.h"
+
+#ifdef GD_MONO_HOT_RELOAD
+SelfList<ManagedCallable>::List ManagedCallable::instances;
+RBMap<ManagedCallable *, Array> ManagedCallable::instances_pending_reload;
+Mutex ManagedCallable::instances_mutex;
+#endif
+
+bool ManagedCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const ManagedCallable *a = static_cast<const ManagedCallable *>(p_a);
+	const ManagedCallable *b = static_cast<const ManagedCallable *>(p_b);
+
+	if (a->delegate_handle.value == b->delegate_handle.value) {
+		return true;
+	}
+	if (!a->delegate_handle.value || !b->delegate_handle.value) {
+		return false;
+	}
+
+	// Call Delegate's 'Equals'
+	return GDMonoCache::managed_callbacks.DelegateUtils_DelegateEquals(
+			a->delegate_handle, b->delegate_handle);
+}
+
+bool ManagedCallable::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
+	if (compare_equal(p_a, p_b)) {
+		return false;
+	}
+	return p_a < p_b;
+}
+
+uint32_t ManagedCallable::hash() const {
+	return GDMonoCache::managed_callbacks.DelegateUtils_DelegateHash(delegate_handle);
+}
+
+String ManagedCallable::get_as_text() const {
+	return "Delegate::Invoke";
+}
+
+CallableCustom::CompareEqualFunc ManagedCallable::get_compare_equal_func() const {
+	return compare_equal_func_ptr;
+}
+
+CallableCustom::CompareLessFunc ManagedCallable::get_compare_less_func() const {
+	return compare_less_func_ptr;
+}
+
+ObjectID ManagedCallable::get_object() const {
+	if (object_id != ObjectID()) {
+		return object_id;
+	}
+	return CSharpLanguage::get_singleton()->get_managed_callable_middleman()->get_instance_id();
+}
+
+int ManagedCallable::get_argument_count(bool &r_is_valid) const {
+	return GDMonoCache::managed_callbacks.DelegateUtils_GetArgumentCount(delegate_handle, &r_is_valid);
+}
+
+void ManagedCallable::call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
+	r_call_error.error = Callable::CallError::CALL_ERROR_INVALID_METHOD; // Can't find anything better
+	r_return_value = Variant();
+
+	ERR_FAIL_NULL(delegate_handle.value);
+
+	GDMonoCache::managed_callbacks.DelegateUtils_InvokeWithVariantArgs(
+			delegate_handle, trampoline, p_arguments, p_argcount, &r_return_value);
+
+	r_call_error.error = Callable::CallError::CALL_OK;
+}
+
+void ManagedCallable::release_delegate_handle() {
+	if (delegate_handle.value) {
+		GDMonoCache::managed_callbacks.GCHandleBridge_FreeGCHandle(delegate_handle);
+		delegate_handle = { nullptr };
+	}
+}
+
+// Why you do this clang-format...
+/* clang-format off */
+ManagedCallable::ManagedCallable(GCHandleIntPtr p_delegate_handle, void *p_trampoline, ObjectID p_object_id) :
+		delegate_handle(p_delegate_handle), trampoline(p_trampoline), object_id(p_object_id) {
+#ifdef GD_MONO_HOT_RELOAD
+	{
+		MutexLock lock(instances_mutex);
+		instances.add(&self_instance);
+	}
+#endif
+}
+/* clang-format on */
+
+ManagedCallable::~ManagedCallable() {
+#ifdef GD_MONO_HOT_RELOAD
+	{
+		MutexLock lock(instances_mutex);
+		instances.remove(&self_instance);
+		instances_pending_reload.erase(this);
+	}
+#endif
+
+	release_delegate_handle();
+}