From 9975d0805419b43ec1ba99549537f7ffdc0b72d4 Mon Sep 17 00:00:00 2001
From: Graham Kelly <gkgoat6700@gmail.com>
Date: Tue, 11 Apr 2023 19:48:05 -0400
Subject: [PATCH] ablelib

---
 Cargo.lock               |  4 ++++
 Cargo.toml               |  2 +-
 user/ablewasi/Cargo.toml |  8 ++++++++
 user/ablewasi/src/api.rs | 29 +++++++++++++++++++++++++++++
 user/ablewasi/src/lib.rs |  8 ++++++++
 user/ablewasi/src/sys.rs | 29 +++++++++++++++++++++++++++++
 6 files changed, 79 insertions(+), 1 deletion(-)
 create mode 100644 user/ablewasi/Cargo.toml
 create mode 100644 user/ablewasi/src/api.rs
 create mode 100644 user/ablewasi/src/lib.rs
 create mode 100644 user/ablewasi/src/sys.rs

diff --git a/Cargo.lock b/Cargo.lock
index 44e9cca7..f53a7888 100644
--- a/Cargo.lock
+++ b/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"
diff --git a/Cargo.toml b/Cargo.toml
index af2ccc0d..b463cecd 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,4 +2,4 @@ resolver = "2"
 
 
 [workspace]
-members = ["kernel", "repbuild"]
+members = ["kernel", "repbuild", "user/ablewasi"]
diff --git a/user/ablewasi/Cargo.toml b/user/ablewasi/Cargo.toml
new file mode 100644
index 00000000..00e1bcb5
--- /dev/null
+++ b/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]
diff --git a/user/ablewasi/src/api.rs b/user/ablewasi/src/api.rs
new file mode 100644
index 00000000..c44a8db5
--- /dev/null
+++ b/user/ablewasi/src/api.rs
@@ -0,0 +1,29 @@
+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{
+    fn to_global(self) -> [u64; 4]{
+        let b = unsafe {
+            sys::make_global(self.id).into()
+        };
+        core::mem::forget(self);
+        return b;
+    }
+    
+    fn from_global(a: [u64; 4]) -> Object{
+        return Object{id: unsafe {
+            sys::take_global(a.into())
+        }};
+    }
+}
\ No newline at end of file
diff --git a/user/ablewasi/src/lib.rs b/user/ablewasi/src/lib.rs
new file mode 100644
index 00000000..7b04e1be
--- /dev/null
+++ b/user/ablewasi/src/lib.rs
@@ -0,0 +1,8 @@
+pub mod sys;
+pub mod api;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+}
diff --git a/user/ablewasi/src/sys.rs b/user/ablewasi/src/sys.rs
new file mode 100644
index 00000000..8b69dd3b
--- /dev/null
+++ b/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);
+}
\ No newline at end of file