Start creating a staticlib with a node API for C

Cargo.lock

@@ -696,6 +696,14 @@ dependencies = [
  "zenoh-config",
 ]
 
+[[package]]
+name = "dora-node-api-c"
+version = "0.1.0"
+dependencies = [
+ "dora-node-api",
+ "futures",
+]
+
 [[package]]
 name = "dora-node-api-python"
 version = "0.1.0"

Cargo.toml

@@ -1,15 +1,14 @@
 [workspace]
 members = [
-  "apis/rust/node",
-  "apis/rust/operator",
-  "apis/rust/operator/macros",
+  "apis/c/node",
   "apis/python/node",
-  "binaries/coordinator",
-  "binaries/runtime",
-  "libraries/extensions/message",
-  "libraries/extensions/telemetry/metrics",
-  "libraries/extensions/telemetry/tracing",
-  "libraries/core",
+  "apis/rust/*",
+  "apis/rust/operator/macros",
+  "binaries/*",
   "examples/example-operator",
+  "libraries/core",
+  "libraries/extensions/message",
+  "libraries/extensions/telemetry/*",
+  "libraries/extensions/telemetry/*",
   "libraries/extensions/zenoh-logger",
 ]

apis/c/node/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "dora-node-api-c"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+crate-type = ["staticlib"]
+
+[dependencies]
+dora-node-api = { path = "../../rust/node" }
+futures = "0.3.21"

apis/c/node/src/lib.rs

@@ -0,0 +1,21 @@
+use std::ptr;
+
+use dora_node_api::DoraNode;
+use futures::executor::block_on;
+
+pub extern "C" fn init_dora_node_from_env() -> *mut () {
+    let node = match block_on(DoraNode::init_from_env()) {
+        Ok(n) => n,
+        Err(err) => {
+            eprintln!("{err:?}");
+            return ptr::null_mut();
+        }
+    };
+
+    Box::into_raw(Box::new(node)).cast()
+}
+
+pub extern "C" fn free_dora_node(node: *mut ()) {
+    let node: Box<DoraNode> = unsafe { Box::from_raw(node.cast()) };
+    let _ = node;
+}