/**************************************************************************/
/* signal_awaiter_utils.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 "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) {
}
Codebase Browser
godot