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https://github.com/mkxp-z/mkxp-z.git
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3ba12e5672
In big-endian libretro builds, the WebAssembly memory is reversed, so no byte-swapping is required to read from/write to WebAssembly memory (which is little-endian). However, that means the ways to get and set values in WebAssembly memory are endianness-dependent, so I've added the correct such ways for big-endian 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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set_private_data(SANDBOX_SLOT(2), C::deserialize((const char *)sb()->ptr(SANDBOX_SLOT(0)), SANDBOX_SLOT(1))); /* TODO: free when sandbox is deallocated */
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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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