/*************************************************************************/ /* managed_callable.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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_marshal.h" #include "mono_gd/gd_mono_utils.h" #ifdef GD_MONO_HOT_RELOAD SelfList<ManagedCallable>::List ManagedCallable::instances; Map<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); MonoDelegate *delegate_a = (MonoDelegate *)a->delegate_handle.get_target(); MonoDelegate *delegate_b = (MonoDelegate *)b->delegate_handle.get_target(); if (!delegate_a || !delegate_b) { if (!delegate_a && !delegate_b) { return true; } return false; } // Call Delegate's 'Equals' return GDMonoUtils::mono_delegate_equal(delegate_a, delegate_b); } 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 { // hmm uint32_t hash = delegate_invoke->get_name().hash(); return hash_djb2_one_64(delegate_handle.handle, hash); } 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 { // TODO: If the delegate target extends Godot.Object, use that instead! return CSharpLanguage::get_singleton()->get_managed_callable_middleman()->get_instance_id(); } 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(); #ifdef GD_MONO_HOT_RELOAD // Lost during hot-reload ERR_FAIL_NULL(delegate_invoke); ERR_FAIL_COND(delegate_handle.is_released()); #endif ERR_FAIL_COND(delegate_invoke->get_parameters_count() < p_argcount); MonoObject *delegate = delegate_handle.get_target(); MonoException *exc = nullptr; MonoObject *ret = delegate_invoke->invoke(delegate, p_arguments, &exc); if (exc) { GDMonoUtils::set_pending_exception(exc); } else { r_return_value = GDMonoMarshal::mono_object_to_variant(ret); r_call_error.error = Callable::CallError::CALL_OK; } } void ManagedCallable::set_delegate(MonoDelegate *p_delegate) { delegate_handle = MonoGCHandleData::new_strong_handle((MonoObject *)p_delegate); MonoMethod *delegate_invoke_raw = mono_get_delegate_invoke(mono_object_get_class((MonoObject *)p_delegate)); const StringName &delegate_invoke_name = CSharpLanguage::get_singleton()->get_string_names().delegate_invoke_method_name; delegate_invoke = memnew(GDMonoMethod(delegate_invoke_name, delegate_invoke_raw)); // TODO: Use pooling for this GDMonoMethod instances } ManagedCallable::ManagedCallable(MonoDelegate *p_delegate) { #ifdef DEBUG_ENABLED CRASH_COND(p_delegate == nullptr); #endif set_delegate(p_delegate); #ifdef GD_MONO_HOT_RELOAD { MutexLock lock(instances_mutex); instances.add(&self_instance); } #endif } ManagedCallable::~ManagedCallable() { #ifdef GD_MONO_HOT_RELOAD { MutexLock lock(instances_mutex); instances.remove(&self_instance); instances_pending_reload.erase(this); } #endif delegate_handle.release(); }