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Pascal Engélibert 2023-04-01 07:52:41 +02:00
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[workspace]
members = [
"executor",
"common",
"runtime-interface",
"runtime-interface-macro",
"runtime",
]
[profile.release]
lto = "fat"

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## Idées
Idées pour un jeu comme [LeekWars](https://leekwars.com) :
* gradient de réaction chimique (à être appliqué par le serveur)
* population décentralisée, une instance de l'IA par case colonisée ou par cellule, ressources très restreintes (idée 1000i100)
* Ferris
* autres mascottes de langages
Nom : Cultivar ou Cultivars
## Problèmes
* passer des objets contenant des références ou pointeurs
* sandbox sûre
* limitation de mémoire et de temps d'exécution (watchdog ?)
* isoler les instances d'IA
* comment exposer des fonctions de l'hôte avec sc-executor ?
* ne pas exposer de fonctions, seulement tout donner en argument et récupérer une liste d'actions ensuite
mais c'est gênant pour les fonctions non-déterministes du point de vue du WASM, et il faut que le WASM maintienne l'état du jeu à jour
* comment le WASM peut-il appeler des méthodes sur une struct de l'hôte ?
* forker sc-executor-wasmtime pour que `create_runtime` prenne `&mut impl HostFunctions` et non juste son type. Mais alors si on veut exposer des méthodes `&self` il faut le refléter dans `#[runtime_interface]` or le WASM ne connaît pas le pointeur vers le `HostFunctions`.
* Un wrapper de `HostFunctions` ?
* créer une variante de `#[runtime_interface]` qui ajoute qqchose comme `&mut Context` dans les fonctions côté hôte
* https://github.com/demille/wasm-ffi
* https://demille.github.io/wasm-ffi/docs/rust/
* http://jakegoulding.com/rust-ffi-omnibus/
* refaire wasm-bindgen sans JS ?
* sp-runtime-interface mais virer les trucs inutiles
## Build
### Runtime (AI)
cargo build --release -p runtime
### Executor
cargo run -p executor

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[package]
name = "cultivar-common"
version = "0.1.0"
edition = "2021"
[dependencies]
num-traits = { version = "0.2.15", default-features = false }
parity-scale-codec = "3.4.0"
sp-runtime-interface = { version = "15.0.0", default-features = false }
[features]
std = ["sp-runtime-interface/std"]

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use crate::board::*;
pub trait Ai {
fn run(board: &mut Board);
}

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use sp_runtime_interface::runtime_interface;
#[runtime_interface]
pub trait Api {
/*fn print_hello(nb: u32) -> u32 {
println!("hello {nb}");
nb + 42
}
fn walk(sim_id: SimId, entity_id: EntityId, direction: Direction) {
if let Some(sim) = sims.read().get_mut(&sim_id) {
if let Some(entity) = sim.entities.get_mut(&entity_id) {
entity.walk(direction)
}
}
}*/
}

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use num_traits::{One, Signed, Zero};
use parity_scale_codec::{Encode, Decode};
#[derive(Debug, Default)]
pub struct Board {
pub size: (usize, usize),
}
pub trait Position {
fn get_position(&self) -> (i32, i32);
}
#[derive(Clone, Copy, Debug, Decode, Encode, Eq, PartialEq, Hash)]
pub enum Direction {
East,
North,
South,
West,
}
impl Direction {
pub fn to_position<T: One + Signed + Zero>(&self) -> (T, T) {
match self {
Self::East => (T::one(), T::zero()),
Self::North => (T::zero(), T::one().neg()),
Self::South => (T::zero(), T::one()),
Self::West => (T::one().neg(), T::zero()),
}
}
}
impl sp_runtime_interface::pass_by::PassBy for Direction {
type PassBy = sp_runtime_interface::pass_by::Codec<Self>;
}

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use crate::prelude::*;
use crate::std_bis::*;
pub mod ferris;
pub mod traits {
use super::*;
pub trait Entity {}
pub trait Walker {
fn walk(&mut self, board: &Board, direction: Direction);
}
}
pub enum Entity {
Ferris(Box<ferris::Ferris>),
}
pub enum WalkError {
OutOfBoard,
}

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use super::traits::*;
use crate::board::*;
pub struct Ferris {
position: (i32, i32),
}
impl Entity for Ferris {}
impl Position for Ferris {
fn get_position(&self) -> (i32, i32) {
self.position
}
}
impl Walker for Ferris {
fn walk(&mut self, board: &Board, direction: Direction) {
let dpos = direction.to_position::<i32>();
self.position.0 += dpos.0;
self.position.1 += dpos.1;
}
}

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#![cfg_attr(not(feature = "std"), no_std)]
pub mod ai;
#[cfg(not(feature = "std"))]
pub mod api;
pub mod board;
pub mod entities;
pub mod sim;
#[cfg(not(feature = "std"))]
extern crate alloc;
use std_bis::*;
pub mod std_bis {
#[cfg(not(feature = "std"))]
pub use alloc::{boxed::Box, vec, vec::Vec};
}
#[cfg(feature = "std")]
pub mod prelude {
pub use crate::{
ai::Ai,
//api::Api,
board::{Board, Direction},
entities::{WalkError, Entity, traits::Walker},
sim::{Sim, SimId, EntityId},
};
}
#[cfg(not(feature = "std"))]
pub mod prelude {
pub use crate::{
ai::Ai,
//api::Api,
board::{Board, Direction},
entities::WalkError,
sim::{SimId, EntityId},
};
}
/*#[runtime_interface]
pub trait Api {
fn foo(a: i32) -> i32 {
1.0f32.cos();
a.wrapping_add(42)
}
}*/

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use crate::std_bis::*;
use crate::{board, entities};
use parity_scale_codec::{Decode, Encode};
#[cfg(feature = "std")]
use std::collections::BTreeMap;
#[derive(Clone, Copy, Debug, Decode, Encode, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct SimId(pub [u8; 16]);
#[derive(Clone, Copy, Debug, Decode, Encode, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct EntityId(pub u32);
impl sp_runtime_interface::pass_by::PassBy for SimId {
type PassBy = sp_runtime_interface::pass_by::Codec<Self>;
}
impl sp_runtime_interface::pass_by::PassBy for EntityId {
type PassBy = sp_runtime_interface::pass_by::Codec<Self>;
}
#[cfg(feature = "std")]
pub struct Sim {
pub board: board::Board,
pub entities: BTreeMap<EntityId, entities::Entity>,
pub entity_counter: u32,
}

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[package]
name = "executor"
version = "0.1.0"
edition = "2021"
[dependencies]
dashmap = "5.4.0"
cultivar-common = { path = "../common", features = ["std"] }
once_cell = "1.17.1"
parity-scale-codec = "3.4.0"
parking_lot = "0.12.1"
sc-executor-common = "0.20.0"
sc-executor-wasmtime = "0.20.0"
sp-runtime-interface = { version = "15.0.0", default-features = false, features = ["std"] }
sp-wasm-interface = "12.0.0"
[features]
default = ["std"]
# This is needed for proc macro runtime-interface
std = []

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use crate::{sims};
use cultivar_common::prelude::*;
use sp_runtime_interface::runtime_interface;
#[runtime_interface]
pub trait Api {
fn print_hello(nb: u32) -> u32 {
println!("hello {nb}");
nb + 42
}
fn walk(sim_id: SimId, entity_id: EntityId, direction: Direction) {
if let Some(mut sim) = (*sims.write()).sims.get_mut(&sim_id) {
let sim = sim.value_mut();
if let Some(entity) = sim.entities.get_mut(&entity_id) {
match entity {
Entity::Ferris(entity) => entity.walk(&sim.board, direction)
}
}
}
}
}

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mod api;
mod runtime_interface;
mod sim;
use cultivar_common::prelude::*;
use once_cell::sync::Lazy;
use parity_scale_codec::Encode;
use parking_lot::RwLock;
use sc_executor_common::wasm_runtime::WasmModule;
use sp_wasm_interface::{Function, FunctionContext, HostFunctions, Signature};
use std::cell::Cell;
static sims: Lazy<RwLock<sim::Sims>> = Lazy::new(|| RwLock::new(sim::Sims::new()));
/*use sp_runtime_interface::runtime_interface;
#[runtime_interface]
pub trait Api {
/*fn print_hello(nb: u32) -> u32 {
println!("hello {nb}");
nb + 42
}
fn walk(sim_id: SimId, entity_id: EntityId, direction: Direction) {
if let Some(sim) = sims.read().get_mut(&sim_id) {
if let Some(entity) = sim.entities.get_mut(&entity_id) {
entity.walk(direction)
}
}
}*/
}*/
/*struct FungiHostFunctions;
impl HostFunctions for FungiHostFunctions {
fn host_functions() -> Vec<&'static dyn Function> {
vec![
&FooFunction
]
}
fn register_static<T>(registry: &mut T) -> Result<(), T::Error>
where T: HostFunctionRegistry {
}
}
struct FooFunction;
impl Function for FooFunction {
fn name(&self) -> &str {
"foo"
}
fn signature(&self) -> Signature {
Signature {
args: std::borrow::Cow::from(&vec![]),
return_value: Some(sp_wasm_interface::ValueType::I32)
}
}
fn execute(&self, context: &mut dyn FunctionContext,args: &mut dyn Iterator<Item = sp_wasm_interface::Value>
) -> sp_wasm_interface::Result<Option<sp_wasm_interface::Value>> {
Ok(None)
}
}
fn foo() -> u8 {
44
}*/
fn main() {
let sim_id = {
sims.read().new_sim(Sim {
board: Board {
size: (4, 4)
},
entities: Default::default(),
entity_counter: 0,
})
};
let ai_code = std::fs::read("target/wasm32-unknown-unknown/release/runtime.wasm")
.expect("Cannot read runtime file");
/*let runtime = sc_executor_wasmtime::create_runtime::<
api::api::ApiHostFunctions,
>(
sc_executor_common::runtime_blob::RuntimeBlob::new(&ai_code).unwrap(),
sc_executor_wasmtime::Config {
allow_missing_func_imports: false,
cache_path: Some("/dev/shm".into()),
semantics: sc_executor_wasmtime::Semantics {
instantiation_strategy:
sc_executor_wasmtime::InstantiationStrategy::PoolingCopyOnWrite,
deterministic_stack_limit: Some(sc_executor_wasmtime::DeterministicStackLimit {
logical_max: 4 * 1024 * 1024,
native_stack_max: 8 * 1024 * 1024,
}),
canonicalize_nans: true,
parallel_compilation: true,
heap_alloc_strategy: sc_executor_common::wasm_runtime::HeapAllocStrategy::Dynamic {
maximum_pages: Some(32),
},
},
},
)
.unwrap();
let mut instance = runtime.new_instance().unwrap();
dbg!(instance
.call_export("run", &sim_id.encode())
.unwrap());*/
/*let mut state = ();
let mut env = sp_sandbox::EnvironmentDefinitionBuilder::new();
let mut instance = sp_sandbox::Instance::new(&ai_code, &env, &mut state).unwrap();
dbg!(instance.invoke("run", &[], &mut state).unwrap());*/
/*let engine = Engine::default();
let module = Module::new(&engine, ai_code).unwrap();
let mut store = Store::new(&engine, 4);
/*let host_foo = Func::wrap(&mut store, |caller: Caller<'_, u32>, param: u32| {
println!("Got {} from WebAssembly", param);
println!("my host state is: {}", caller.data());
param + 10
});*/
let instance = Instance::new(&mut store, &module, &[/*host_foo.into()*/]).unwrap();
let ai_run = instance
.get_typed_func::<(), (), _>(&mut store, "run")
.unwrap();
dbg!(ai_run
.call(&mut store, ())
.unwrap());*/
}

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use cultivar_common::prelude::*;
use dashmap::DashMap;
pub struct Sims {
pub sims: DashMap<SimId, Sim>,
}
impl Sims {
pub fn new() -> Self {
Self {
sims: DashMap::new(),
}
}
pub fn new_sim(&self, sim: Sim) -> SimId {
let sim_id = SimId([0; 16]);
self.sims.insert(sim_id, sim);
sim_id
}
}

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[package]
name = "cultivar-runtime-interface-macro"
version = "0.1.0"
edition = "2021"
[lib]
proc-macro = true
[dependencies]
quote = "1.0.23"
syn = { version = "1.0.109", features = [ "full" ] }

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//#![feature(trace_macros)]
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, ItemFn};
//trace_macros!(true);
#[proc_macro_attribute]
pub fn export_fn(_args: TokenStream, input: TokenStream) -> TokenStream {
let ItemFn {
attrs,
vis,
sig,
block,
} = parse_macro_input!(input);
let stmts = &block.stmts;
quote! {
#(#attrs)* #vis #sig {
#(#stmts)*
}
}
.into()
}

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[package]
name = "cultivar-runtime-interface"
version = "0.1.0"
edition = "2021"
[dependencies]
cultivar-common = { path = "../common" }
#cultivar-runtime-interface-macro = { path = "../runtime-interface-macro" }

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#![no_std]
//#![feature(core_intrinsics)]
//#![feature(alloc_error_handler)]
use fungi_common::prelude::*;
/*#[panic_handler]
#[no_mangle]
pub fn panic(_info: &core::panic::PanicInfo) -> ! {
core::intrinsics::abort()
}*/
/*#[alloc_error_handler]
#[no_mangle]
pub fn oom(_: core::alloc::Layout) -> ! {
core::intrinsics::abort();
}*/
pub mod prelude {
use crate::*;
//pub use fungi_runtime_interface_macro::export_fn;
}

7
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
[[package]]
name = "runtime"
version = "0.1.0"

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cargo-features = ["per-package-target"]
[package]
name = "runtime"
version = "0.1.0"
edition = "2021"
forced-target = "wasm32-unknown-unknown"
[lib]
path = "src/lib.rs"
crate-type = ["cdylib", "staticlib"]
[dependencies]
#dlmalloc = { version = "0.2.4", features = ["global"] }
cultivar-common = { path = "../common" }
cultivar-runtime-interface = { path = "../runtime-interface" }
parity-scale-codec = "3.4.0"
wee_alloc = "0.4.5"

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#![feature(vec_into_raw_parts)]
#![no_std]
use core::alloc::GlobalAlloc;
use fungi_common::{prelude::*, std_bis::*};
use fungi_runtime_interface::prelude::*;
use parity_scale_codec::Decode;
//use fungi_runtime_interface::*;
#[global_allocator]
static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
//static ALLOC: dlmalloc::GlobalDlmalloc = dlmalloc::GlobalDlmalloc;
struct MyAi {}
/*impl Ai for MyAi {
fn run(_board: &mut Board) {}
}*/
/// # Safety
/// The pointer given in argument must be valid, or undefined data will be read.
#[export_name = "run"]
pub unsafe fn run(ptr: *mut u8, len: usize) -> u64 {
let mut data = unsafe { Vec::from_raw_parts(ptr, len, len) };
let sim_id = SimId::decode(&mut &data[..]).unwrap();
run_inner(sim_id);
let (ptr, len, _) = data.into_raw_parts();
(len as u64) << 32 | ptr as u64
}
fn run_inner(sim_id: SimId) {
fungi_common::api::walk(sim_id, EntityId(0), Direction::East);
}

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hard_tabs = true
newline_style = "unix"
unstable_features = true
format_code_in_doc_comments = true
format_macro_bodies = true
format_macro_matchers = true
format_strings = true