mirror of
https://github.com/mkxp-z/mkxp-z.git
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031245491f
This commit adds `sb()->create_object()`, `sb()->get_object()`, `sb()->check_object_type()` and `sb()->destroy_object()` in libretro builds to keep track of all C++ objects allocated by the bindings in libretro builds. This has some benefits: * Any C++ objects allocated by the bindings that are still alive when the game terminates can now be deallocated instead of being leaked like before. * We now keep track of the types of all objects allocated by the bindings, so we will be able to detect when the bindings attempt to access objects of mismatching type. * Keeping track of all allocated objects is required to implement libretro save states. * Objects are now kept track of using numeric keys whose sizes are the same on every platform rather than pointers, which helps with making save states portable across platforms.
77 lines
2.9 KiB
C++
77 lines
2.9 KiB
C++
/*
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** serializable-binding.h
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**
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** This file is part of mkxp.
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**
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** Copyright (C) 2013 - 2021 Amaryllis Kulla <ancurio@mapleshrine.eu>
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**
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** mkxp is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 2 of the License, or
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** (at your option) any later version.
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**
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** mkxp is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with mkxp. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MKXPZ_SANDBOX_SERIALIZABLE_BINDING_H
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#define MKXPZ_SANDBOX_SERIALIZABLE_BINDING_H
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#include "binding-util.h"
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namespace mkxp_sandbox {
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template <class C> VALUE serializable_load(VALUE klass, VALUE src) {
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struct coro : boost::asio::coroutine {
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typedef decl_slots<wasm_ptr_t, wasm_size_t, VALUE> slots;
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VALUE operator()(VALUE klass, VALUE src) {
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BOOST_ASIO_CORO_REENTER (this) {
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SANDBOX_AWAIT_S(2, rb_obj_alloc, klass);
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SANDBOX_AWAIT_S(0, rb_string_value_ptr, &src);
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SANDBOX_AWAIT_S(1, get_bytesize, src);
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SANDBOX_GUARD(set_private_data(SANDBOX_SLOT(2), C::deserialize(sb().e, (const char *)sb()->ptr(SANDBOX_SLOT(0)), SANDBOX_SLOT(1))));
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}
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return SANDBOX_SLOT(2);
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}
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};
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return sb()->bind<struct coro>()()(klass, src);
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}
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template <class C> VALUE serializable_dump(VALUE self, VALUE depth) {
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struct coro : boost::asio::coroutine {
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typedef decl_slots<wasm_ptr_t, wasm_size_t, VALUE> slots;
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VALUE operator()(VALUE self) {
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BOOST_ASIO_CORO_REENTER (this) {
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SANDBOX_SLOT(1) = get_private_data<C>(self)->serialSize();
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SANDBOX_AWAIT_S(2, rb_str_new_cstr, "");
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SANDBOX_AWAIT(rb_str_resize, SANDBOX_SLOT(2), SANDBOX_SLOT(1));
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SANDBOX_AWAIT_S(0, rb_string_value_ptr, &SANDBOX_SLOT(2));
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get_private_data<C>(self)->serialize((char *)sb()->ptr(SANDBOX_SLOT(0)));
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}
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return SANDBOX_SLOT(2);
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}
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};
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return sb()->bind<struct coro>()()(self);
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}
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template <class C> struct serializable_binding_init : boost::asio::coroutine {
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void operator()(VALUE klass) {
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BOOST_ASIO_CORO_REENTER (this) {
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SANDBOX_AWAIT(rb_define_singleton_method, klass, "_load", (VALUE (*)(ANYARGS))serializable_load<C>, 1);
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SANDBOX_AWAIT(rb_define_method, klass, "_dump", (VALUE (*)(ANYARGS))serializable_dump<C>, 1);
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}
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}
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};
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}
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#endif // MKXPZ_SANDBOX_SERIALIZABLE_BINDING_H
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