Update to latest edge-net; proper init for GattResponse

Cargo.toml

@@ -16,7 +16,7 @@ rust-version = "1.78"
 #[patch.'https://github.com/ivmarkov/async-io-mini']
 #async-io-mini = { path = "../async-io-mini" }
 #[patch.'https://github.com/ivmarkov/rs-matter-stack']
-#rs-matter-stack = { path = "../rs-matter-stack", default-features = false, features = ["std"], optional = true }
+#rs-matter-stack = { path = "../rs-matter-stack" }
 
 [patch.crates-io]
 rs-matter = { git = "https://github.com/ivmarkov/rs-matter", branch = "tip" }
@@ -52,9 +52,9 @@ esp-idf-svc = { version = "0.49.1", default-features = false, features = ["alloc
 embedded-svc = { version = "0.28", default-features = false }
 rs-matter = { version = "0.1", default-features = false, features = ["rustcrypto"] }
 async-io = { version = "=2.0.0", default-features = false } # Workaround for https://github.com/smol-rs/async-lock/issues/84
-rs-matter-stack = { git = "https://github.com/ivmarkov/rs-matter-stack", branch = "tip", default-features = false, features = ["std"], optional = true }
-edge-nal = "0.2"
-edge-nal-std = { version = "0.2", default-features = false, optional = true }
+rs-matter-stack = { git = "https://github.com/ivmarkov/rs-matter-stack", branch = "in-place-init", default-features = false, features = ["std"], optional = true }
+edge-nal = "0.3"
+edge-nal-std = { version = "0.3", default-features = false, optional = true }
 
 [build-dependencies]
 embuild = "0.32"

examples/light.rs

@@ -47,7 +47,7 @@ fn main() -> Result<(), anyhow::Error> {
     // confused by the low priority of the ESP IDF main task
     // Also allocate a very large stack (for now) as `rs-matter` futures do occupy quite some space
     let thread = std::thread::Builder::new()
-        .stack_size(40 * 1024)
+        .stack_size(55 * 1024)
         .spawn(|| {
             // Eagerly initialize `async-io` to minimize the risk of stack blowups later on
             init_async_io()?;

src/ble.rs

@@ -77,7 +77,7 @@ impl State {
             c2_handle: None,
             c2_cccd_handle: None,
             connections <- rs_matter::utils::storage::Vec::init(),
-            response: GattResponse::new(), // TODO
+            response <- gatt_response::init(),
         })
     }
 }
@@ -845,3 +845,36 @@ where
         Ok(())
     }
 }
+
+mod gatt_response {
+    use esp_idf_svc::bt::ble::gatt::GattResponse;
+    use esp_idf_svc::sys::{esp_gatt_rsp_t, esp_gatt_value_t};
+
+    use rs_matter::utils::init::{init, init_from_closure, zeroed, Init};
+
+    /// Return an in-place initializer for `GattResponse`.
+    ///
+    /// Works by initializing the `GattResponse` struct in-place using the `esp_gatt_rsp_t` type,
+    /// which is possible because `GattResponse` is a `#[repr(transparent)]` newtype over `esp_gatt_rsp_t`.
+    pub fn init() -> impl Init<GattResponse> {
+        unsafe {
+            init_from_closure(|slot: *mut GattResponse| {
+                let slot = slot as *mut esp_gatt_rsp_t;
+
+                init_esp_gatt_response().__init(slot)
+            })
+        }
+    }
+
+    fn init_esp_gatt_response() -> impl Init<esp_gatt_rsp_t> {
+        init!(esp_gatt_rsp_t {
+           attr_value <- init!(esp_gatt_value_t {
+               len: 0,
+               value <- zeroed(),
+               handle: 0,
+               offset: 0,
+               auth_req: 0,
+           }),
+        })
+    }
+}