make it os agnostic

Signed-off-by: Jorge Prendes <[email protected]>

crates/containerd-shim-wasm/src/lib.rs

@@ -9,5 +9,4 @@ pub mod services;
 #[cfg_attr(windows, path = "sys/windows/mod.rs")]
 pub(crate) mod sys;
 
-#[cfg(all(feature = "libcontainer", not(target_os = "windows")))]
 pub mod container;

crates/containerd-shim-wasm/src/sys/common/container/instance.rs

@@ -0,0 +1,26 @@
+use crate::container::engine::Engine;
+use crate::sandbox::instance::Wait;
+use crate::sandbox::{Error as SandboxError, Instance as SandboxInstance, InstanceConfig};
+
+pub struct Instance<E: Engine> {
+    engine: std::marker::PhantomData<E>,
+}
+
+impl<E: Engine> SandboxInstance for Instance<E> {
+    type Engine = E;
+    fn new(_id: String, _cfg: Option<&InstanceConfig<Self::Engine>>) -> Self {
+        todo!();
+    }
+    fn start(&self) -> Result<u32, SandboxError> {
+        todo!();
+    }
+    fn kill(&self, _signal: u32) -> Result<(), SandboxError> {
+        todo!();
+    }
+    fn delete(&self) -> Result<(), SandboxError> {
+        todo!();
+    }
+    fn wait(&self, _waiter: &Wait) -> Result<(), SandboxError> {
+        todo!();
+    }
+}

crates/containerd-shim-wasm/src/sys/unix/mod.rs

@@ -1,3 +1,5 @@
+#[cfg_attr(feature = "libcontainer", path = "./container/mod.rs")]
+#[cfg_attr(not(feature = "libcontainer"), path = "../common/container/mod.rs")]
 pub mod container;
 pub mod metrics;
 pub mod networking;

crates/containerd-shim-wasm/src/sys/windows/mod.rs

@@ -1,3 +1,4 @@
+#[path = "../common/container/mod.rs"]
 pub mod container;
 pub mod metrics;
 pub mod networking;

crates/containerd-shim-wasmedge/src/lib.rs

@@ -2,8 +2,6 @@ use std::env;
 
 use containerd_shim::parse;
 
-#[cfg_attr(unix, path = "instance/instance_linux.rs")]
-#[cfg_attr(windows, path = "instance/instance_windows.rs")]
 pub mod instance;
 
 pub use instance::WasmEdgeInstance;

crates/containerd-shim-wasmtime/src/lib.rs

@@ -2,8 +2,6 @@ use std::env;
 
 use containerd_shim::parse;
 
-#[cfg_attr(unix, path = "instance/instance_linux.rs")]
-#[cfg_attr(windows, path = "instance/instance_windows.rs")]
 pub mod instance;
 
 pub use instance::WasmtimeInstance;