godot/modules/mono/mono_gc_handle.cpp

/*************************************************************************/
/*  mono_gc_handle.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
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#include "mono_gc_handle.h"

#include "mono_gd/gd_mono.h"

uint32_t MonoGCHandle::new_strong_handle(MonoObject *p_object) {

	return mono_gchandle_new(p_object, /* pinned: */ false);
}

uint32_t MonoGCHandle::new_strong_handle_pinned(MonoObject *p_object) {

	return mono_gchandle_new(p_object, /* pinned: */ true);
}

uint32_t MonoGCHandle::new_weak_handle(MonoObject *p_object) {

	return mono_gchandle_new_weakref(p_object, /* track_resurrection: */ false);
}

void MonoGCHandle::free_handle(uint32_t p_gchandle) {

	mono_gchandle_free(p_gchandle);
}

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

	return memnew(MonoGCHandle(new_strong_handle(p_object), STRONG_HANDLE));
}

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

	return memnew(MonoGCHandle(new_weak_handle(p_object), WEAK_HANDLE));
}

void MonoGCHandle::release() {

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

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

MonoGCHandle::MonoGCHandle(uint32_t p_handle, HandleType p_handle_type) {

	released = false;
	weak = p_handle_type == WEAK_HANDLE;
	handle = p_handle;
}

MonoGCHandle::~MonoGCHandle() {

	release();
}