/*************************************************************************/ /* signal_awaiter_utils.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "signal_awaiter_utils.h" #include "csharp_script.h" #include "mono_gd/gd_mono_cache.h" Error gd_mono_connect_signal_awaiter(Object *p_source, const StringName &p_signal, Object *p_target, GCHandleIntPtr p_awaiter_handle_ptr) { ERR_FAIL_NULL_V(p_source, ERR_INVALID_DATA); ERR_FAIL_NULL_V(p_target, ERR_INVALID_DATA); // TODO: Use pooling for ManagedCallable instances. MonoGCHandleData awaiter_handle(p_awaiter_handle_ptr, gdmono::GCHandleType::STRONG_HANDLE); SignalAwaiterCallable *awaiter_callable = memnew(SignalAwaiterCallable(p_target, awaiter_handle, p_signal)); Callable callable = Callable(awaiter_callable); return p_source->connect(p_signal, callable, Object::CONNECT_ONE_SHOT); } bool SignalAwaiterCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) { // Only called if both instances are of type SignalAwaiterCallable. Static cast is safe. const SignalAwaiterCallable *a = static_cast<const SignalAwaiterCallable *>(p_a); const SignalAwaiterCallable *b = static_cast<const SignalAwaiterCallable *>(p_b); return a->awaiter_handle.handle.value == b->awaiter_handle.handle.value; } bool SignalAwaiterCallable::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 SignalAwaiterCallable::hash() const { uint32_t hash = signal.hash(); return hash_murmur3_one_64(target_id, hash); } String SignalAwaiterCallable::get_as_text() const { Object *base = ObjectDB::get_instance(target_id); if (base) { String class_name = base->get_class(); Ref<Script> script = base->get_script(); if (script.is_valid() && script->get_path().is_resource_file()) { class_name += "(" + script->get_path().get_file() + ")"; } return class_name + "::SignalAwaiterMiddleman::" + String(signal); } else { return "null::SignalAwaiterMiddleman::" + String(signal); } } CallableCustom::CompareEqualFunc SignalAwaiterCallable::get_compare_equal_func() const { return compare_equal_func_ptr; } CallableCustom::CompareLessFunc SignalAwaiterCallable::get_compare_less_func() const { return compare_less_func_ptr; } ObjectID SignalAwaiterCallable::get_object() const { return target_id; } StringName SignalAwaiterCallable::get_signal() const { return signal; } void SignalAwaiterCallable::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 DEBUG_ENABLED ERR_FAIL_COND_MSG(target_id.is_valid() && !ObjectDB::get_instance(target_id), "Resumed after await, but class instance is gone."); #endif bool awaiter_is_null = false; GDMonoCache::managed_callbacks.SignalAwaiter_SignalCallback(awaiter_handle.get_intptr(), p_arguments, p_argcount, &awaiter_is_null); if (awaiter_is_null) { r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL; return; } r_call_error.error = Callable::CallError::CALL_OK; } SignalAwaiterCallable::SignalAwaiterCallable(Object *p_target, MonoGCHandleData p_awaiter_handle, const StringName &p_signal) : target_id(p_target->get_instance_id()), awaiter_handle(p_awaiter_handle), signal(p_signal) { } SignalAwaiterCallable::~SignalAwaiterCallable() { awaiter_handle.release(); } bool EventSignalCallable::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) { const EventSignalCallable *a = static_cast<const EventSignalCallable *>(p_a); const EventSignalCallable *b = static_cast<const EventSignalCallable *>(p_b); if (a->owner != b->owner) { return false; } if (a->event_signal_name != b->event_signal_name) { return false; } return true; } bool EventSignalCallable::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 EventSignalCallable::hash() const { uint32_t hash = event_signal_name.hash(); return hash_murmur3_one_64(owner->get_instance_id(), hash); } String EventSignalCallable::get_as_text() const { String class_name = owner->get_class(); Ref<Script> script = owner->get_script(); if (script.is_valid() && script->get_path().is_resource_file()) { class_name += "(" + script->get_path().get_file() + ")"; } return class_name + "::EventSignalMiddleman::" + String(event_signal_name); } CallableCustom::CompareEqualFunc EventSignalCallable::get_compare_equal_func() const { return compare_equal_func_ptr; } CallableCustom::CompareLessFunc EventSignalCallable::get_compare_less_func() const { return compare_less_func_ptr; } ObjectID EventSignalCallable::get_object() const { return owner->get_instance_id(); } StringName EventSignalCallable::get_signal() const { return event_signal_name; } void EventSignalCallable::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(); CSharpInstance *csharp_instance = CAST_CSHARP_INSTANCE(owner->get_script_instance()); ERR_FAIL_NULL(csharp_instance); GCHandleIntPtr owner_gchandle_intptr = csharp_instance->get_gchandle_intptr(); bool awaiter_is_null = false; GDMonoCache::managed_callbacks.ScriptManagerBridge_RaiseEventSignal( owner_gchandle_intptr, &event_signal_name, p_arguments, p_argcount, &awaiter_is_null); if (awaiter_is_null) { r_call_error.error = Callable::CallError::CALL_ERROR_INSTANCE_IS_NULL; return; } r_call_error.error = Callable::CallError::CALL_OK; } EventSignalCallable::EventSignalCallable(Object *p_owner, const StringName &p_event_signal_name) : owner(p_owner), event_signal_name(p_event_signal_name) { }