godot/modules/mono/mono_gc_handle.cpp

/*************************************************************************/
/*  mono_gc_handle.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
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/* "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 */
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/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/*************************************************************************/
#include "mono_gc_handle.h"

#include "mono_gd/gd_mono.h"

uint32_t MonoGCHandle::make_strong_handle(MonoObject *p_object) {

	return mono_gchandle_new(
			p_object,
			false /* do not pin the object */
			);
}

uint32_t MonoGCHandle::make_weak_handle(MonoObject *p_object) {

	return mono_gchandle_new_weakref(
			p_object,
			true /* track_resurrection: allows us to invoke _notification(NOTIFICATION_PREDELETE) while disposing */
			);
}

Ref<MonoGCHandle> MonoGCHandle::create_strong(MonoObject *p_object) {

	return memnew(MonoGCHandle(make_strong_handle(p_object)));
}

Ref<MonoGCHandle> MonoGCHandle::create_weak(MonoObject *p_object) {

	return memnew(MonoGCHandle(make_weak_handle(p_object)));
}

void MonoGCHandle::release() {

#ifdef DEBUG_ENABLED
	CRASH_COND(GDMono::get_singleton() == NULL);
#endif

	if (!released && GDMono::get_singleton()->is_runtime_initialized()) {
		mono_gchandle_free(handle);
		released = true;
	}
}

MonoGCHandle::MonoGCHandle(uint32_t p_handle) {

	released = false;
	handle = p_handle;
}

MonoGCHandle::~MonoGCHandle() {

	release();
}