It works! It works! With lots of hacks it works!

Cargo.lock

@@ -2,6 +2,10 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "ablewasi"
+version = "0.1.0"
+
 [[package]]
 name = "ahash"
 version = "0.7.6"

Cargo.toml

@@ -2,4 +2,4 @@ resolver = "2"
 
 
 [workspace]
-members = ["kernel", "repbuild"]
+members = ["kernel", "repbuild", "user/ablewasi"]

kernel/src/handle.rs

@@ -1,6 +1,18 @@
-use crate::arch::hardware_random_u64;
-use alloc::vec::Vec;
-use core::fmt::{self, Formatter};
+use spin::Lazy;
+
+use spin::{Mutex};
+
+use crate::interp::objects::{Object,HandleTarget, TARGETS};
+
+use {
+    crate::arch::hardware_random_u64,
+    alloc::vec::Vec,
+    core::fmt::{self, Formatter},
+};
+
+use alloc::{
+    collections::BTreeMap,
+};
 #[derive(Debug, Eq, Hash, PartialEq, Clone, Copy)]
 pub struct OSHandle {
     pub id: u64,
@@ -19,21 +31,30 @@ impl OSHandle {
 
 #[derive(Debug, Eq, Hash, PartialEq, Clone, Copy)]
 pub struct Handle {
-    id: OSHandle,
-    perms: Permissions,
+    pub id: OSHandle,
+    pub perms: Permissions,
+    pub r#ref: usize,
 }
 
 impl Handle {
-    pub fn new() -> Handle {
+    pub fn new(r#ref: usize) -> Handle {
         Handle {
             id: OSHandle::random_new(),
             perms: Permissions::new(),
+            r#ref,
         }
     }
 
     pub fn as_u64(&self) -> u64 {
         self.id.id
     }
+
+    pub fn get<R, F: for<'a> FnOnce(Option<&'a mut HandleTarget>) -> R>(&self, f: F) -> R {
+        let l = TARGETS;
+        let mut olock = l.lock();
+        let a = olock.get_mut(self.r#ref).and_then(|a| a.as_mut());
+        return f(a);
+    }
 }
 
 impl fmt::Display for Handle {
@@ -57,3 +78,8 @@ impl Permissions {
         }
     }
 }
+
+pub const GLOBALS: Lazy<Mutex<BTreeMap<[u64; 4], Handle>>> = Lazy::new(|| {
+    let mut globals = BTreeMap::new();
+    Mutex::new(globals)
+});

kernel/src/interp/host_functions.rs

@@ -1,5 +1,5 @@
 use {
-    crate::interp::{HFIDT, OBJECTS},
+    crate::interp::{HFIDT, TARGETS},
     alloc::string::String,
     log::trace,
     wasmi::{Caller, TypedFunc},
@@ -34,7 +34,14 @@ pub fn host_register_idt_handler(
     0
 }
 
-use crate::interp::Handle;
+use crate::{
+    arch::hardware_random_u64,
+    handle::GLOBALS,
+    interp::{
+        objects::{HandleTarget, Object},
+        Handle,
+    },
+};
 
 pub fn host_make_object(
     mut caller: Caller<'_, HostState>,
@@ -54,17 +61,13 @@ pub fn host_make_object(
         name.push(ch);
     }
     trace!("Object Name {}", name);
-    let hand = Handle::new();
-    {
-        let binding = OBJECTS;
-        let mut olock = binding.lock();
-        let obj = xml::XMLElement::new(name);
+    let binding = TARGETS;
+    let mut olock = binding.lock();
+    let hand = Handle::new(olock.len());
+    let obj = xml::XMLElement::new(name);
 
-        olock.push(Some(obj))
-    }
-    caller.data_mut().handles.push(hand);
-    // hand.into()
-    hand.as_u64().try_into().unwrap()
+    olock.push(Some(HandleTarget::Object(Object { xml: obj })));
+    caller.data_mut().add_handle(hand).try_into().unwrap()
 }
 
 pub type WFIDT = TypedFunc<(), ()>;
@@ -74,3 +77,33 @@ fn get_fn_from_wc(wc: WasmContext, function_name: String) -> WFIDT {
         .get_typed_func(wc.store, &function_name)
         .unwrap()
 }
+
+pub fn host_make_global(mut caller: Caller<'_, HostState>, h: i64) -> (u64, u64, u64, u64) {
+    let binding = GLOBALS;
+    let Some(hand): Option<&mut Option<Handle>> = caller.data_mut().handles.get_mut(h as usize) else {
+        return (0,0,0,0);
+    };
+    let Some(t) = hand.take() else {
+        return (0,0,0,0);
+    };
+    let a = [hardware_random_u64(); 4];
+    let mut l = binding.lock();
+    l.insert(a, t);
+    return (a[0], a[1], a[2], a[3]);
+}
+
+pub fn host_take_global(mut caller: Caller<'_, HostState>, a: u64, b: u64, c: u64, d: u64) -> i64 {
+    let binding = GLOBALS;
+    let mut l = binding.lock();
+    let mut j: [u64; 4] = [0u64; 4];
+    j[0] = a;
+    j[1] = b;
+    j[2] = c;
+    j[3] = d;
+    let Some(m) = l.remove::<[u64; 4]>({
+        &j
+    }) else{
+        return -1;
+    };
+    caller.data_mut().add_handle(m) as i64
+}

kernel/src/interp/mod.rs

@@ -1,9 +1,9 @@
 mod host_functions;
-mod objects;
+pub mod objects;
 use {
     crate::{
         handle::{self, Handle},
-        interp::{host_functions::host_make_object, objects::OBJECTS},
+        interp::{host_functions::host_make_object, objects::TARGETS},
     },
     alloc::{string::String, vec::Vec},
     hashbrown::HashMap,
@@ -13,7 +13,12 @@ use {
     xml::XMLElement,
 };
 // Seperate use statement
-use alloc::vec;
+use {
+    alloc::{fmt::format, format, vec},
+    wasmi::Value,
+};
+
+use self::objects::HandleTarget;
 
 #[derive(Debug)]
 
@@ -94,7 +99,20 @@ pub fn wasm() -> Result<(), wasmi::Error> {
 
 #[derive(Clone, Debug)]
 pub struct HostState {
-    handles: Vec<Handle>,
+    handles: Vec<Option<Handle>>,
+}
+
+impl HostState {
+    pub fn add_handle(&mut self, hand: Handle) -> usize {
+        for (i, h) in self.handles.iter_mut().enumerate() {
+            if let None = h {
+                *h = Some(hand);
+                return i;
+            }
+        }
+        self.handles.push(Some(hand));
+        return (self.handles.len() - 1);
+    }
 }
 
 pub fn read_memory_address(caller: Caller<'_, HostState>, address: i32) -> i32 {
@@ -104,27 +122,60 @@ pub fn read_memory_address(caller: Caller<'_, HostState>, address: i32) -> i32 {
 }
 
 pub fn host_read_object_attribute(
-    caller: Caller<'_, HostState>,
+    mut caller: Caller<'_, HostState>,
     handle: i64,
     address_start: i32,
     length_of_string: i32,
 ) -> (i32, i32) {
-    {
-        let binding = OBJECTS;
-        let mut olock = binding.lock();
+    let binding = TARGETS;
+    let mut olock = binding.lock();
 
-        // olock.get(&handle);
-    }
+    // olock.get(&handle);
 
     let mem = caller.get_export("memory").unwrap().into_memory().unwrap();
-    let mem_array = mem.data(&caller);
+    let mem_array = mem.data_mut(&mut caller);
     let mut name = String::new();
     for i in address_start..(address_start + length_of_string) {
         let ch = mem_array[i as usize] as char;
         name.push(ch);
     }
+    let Some(Some(a)) = caller.data().handles.get(handle as usize) else {
+        return (0,0);
+    };
+    let Some(Some(HandleTarget::Object(o))) = olock.get(a.r#ref) else{
+        return (0,0);
+    };
+    let Some(r) = o.xml.attributes.iter().find(|a|{
+        let f = format!("{:?}",a);
+        f.contains(&format!("Attribute{{ name: \"{}",name))
+    })else{
+        return (0,0);
+    };
+    let f = format!("{:?}", r);
+    let p = format!("Attribute{{ name: \"{}\", value: \"", name);
+    let s = format!("\" }}");
+    let h = f.replace(&p, "").replace(&s, "");
 
-    (0, 0)
+    let i = vec![Value::I32(h.len().try_into().unwrap())];
+    let mut o = vec![Value::I32(0)];
+
+    let a = caller
+        .get_export("malloc")
+        .unwrap()
+        .into_func()
+        .unwrap()
+        .call(&mut caller, &i, &mut o);
+    let mem_array = mem.data_mut(&mut caller);
+
+    let Value::I32(a) = o[0] else{
+    panic!("invalid malloc");
+    };
+
+    for (s, b) in h.clone().into_bytes().iter().enumerate() {
+        mem_array[(a as usize) + s] = *b;
+    }
+
+    (a, h.len().try_into().unwrap())
 }
 
 pub fn build_wasm_context(bytes: Vec<u8>) -> Result<WasmContext, wasmi::Error> {

kernel/src/interp/objects.rs

@@ -1,11 +1,19 @@
-use alloc::vec;
-use alloc::vec::Vec;
+use alloc::{vec, vec::Vec, collections::BTreeMap};
 
 use spin::{Lazy, Mutex};
 
-pub type HostObjects = Vec<Option<xml::XMLElement>>;
+use crate::handle::Handle;
 
-pub const OBJECTS: Lazy<Mutex<HostObjects>> = Lazy::new(|| {
+pub struct  Object{
+    pub xml: xml::XMLElement
+}
+pub enum HandleTarget{
+    Object(Object)
+}
+
+pub type HostTargets = Vec<Option<HandleTarget>>;
+
+pub const TARGETS: Lazy<Mutex<HostTargets>> = Lazy::new(|| {
     let mut obj = vec![];
     Mutex::new(obj)
 });

user/ablewasi/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "ablewasi"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

user/ablewasi/src/api.rs

@@ -0,0 +1,36 @@
+use crate::sys;
+
+pub struct Object{
+    pub id: i64
+}
+
+impl Drop for Object{
+    fn drop(&mut self) {
+        unsafe{
+            sys::drop_object(self.id);
+        }
+    }
+}
+
+impl Object{
+    pub fn to_global(self) -> [u64; 4]{
+        let b = unsafe {
+            sys::make_global(self.id).into()
+        };
+        core::mem::forget(self);
+        return b;
+    }
+    
+    pub fn from_global(a: [u64; 4]) -> Object{
+        return Object{id: unsafe {
+            sys::take_global(a.into())
+        }};
+    }
+
+    pub fn new(name: &str) -> Object{
+        return Object{id: unsafe {
+            let a = name.as_ptr();
+            sys::create_object(a, name.len() as i32)
+        }};
+    }
+}

user/ablewasi/src/lib.rs

@@ -0,0 +1,8 @@
+pub mod sys;
+pub mod api;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+}

user/ablewasi/src/sys.rs

@@ -0,0 +1,29 @@
+#[repr(C)]
+pub struct ROAResult(*const u8,i32);
+
+pub type LocalObject = i64;
+
+
+#[repr(C)]
+pub struct GlobalObject(u64,u64,u64,u64);
+
+impl From<[u64;4]> for GlobalObject {
+    fn from(value: [u64;4]) -> Self {
+        GlobalObject(value[0], value[1], value[2], value[3])
+    }
+}
+
+impl From<GlobalObject> for [u64; 4]{
+    fn from(value: GlobalObject) -> Self {
+        let GlobalObject(a,b,c,d) = value;
+        [a,b,c,d]
+    }
+}
+
+extern "C"{
+    pub fn create_object(a: *const u8, b: i32) -> LocalObject;
+    pub fn read_object_attribute(a: LocalObject, b: *const i8, c: i32) -> ROAResult;
+    pub fn take_global(a: GlobalObject) -> LocalObject;
+    pub fn make_global(a: LocalObject) -> GlobalObject;
+    pub fn drop_object(a: LocalObject);
+}