Update to heapless 0.9

Author: sosthene-nitrokey

Cargo.toml

@@ -9,8 +9,9 @@ license = "Apache-2.0 OR MIT"
 repository = "https://github.com/solokeys/ctaphid-dispatch"
 
 [workspace.dependencies]
-heapless-bytes = "0.3"
+heapless-bytes = "0.5"
 trussed-core = "0.1.0"
 
 [patch.crates-io]
 ctaphid-app.path = "app"
+trussed-core = { git = "https://github.com/trussed-dev/trussed.git", rev = "1e7b09a983dc8ae64a7ad8401ce541a9a77e5939"}

app/src/lib.rs

@@ -1,6 +1,6 @@
 #![no_std]
 
-use heapless_bytes::Bytes;
+use heapless_bytes::BytesView;
 use trussed_core::InterruptFlag;
 
 mod command;
@@ -10,7 +10,7 @@ pub use command::{Command, VendorCommand};
 /// trait interface for a CTAPHID application.
 /// The application chooses which commands to register to, and will be called upon
 /// when the commands are received in the CTAPHID layer.  Only one application can be registered to a particular command.
-pub trait App<'interrupt, const N: usize> {
+pub trait App<'interrupt> {
     /// Get access to the app interrupter
     fn interrupt(&self) -> Option<&'interrupt InterruptFlag> {
         None
@@ -27,7 +27,7 @@ pub trait App<'interrupt, const N: usize> {
         &mut self,
         command: Command,
         request: &[u8],
-        response: &mut Bytes<N>,
+        response: &mut BytesView,
     ) -> Result<(), Error>;
 }
 

dispatch/src/dispatch.rs

@@ -3,7 +3,7 @@ use core::sync::atomic::Ordering;
 use crate::types::{InterchangeResponse, Responder};
 
 use ctaphid_app::{App, Command, Error};
-use heapless_bytes::Bytes;
+use heapless_bytes::{Bytes, BytesView};
 use ref_swap::OptionRefSwap;
 use trussed_core::InterruptFlag;
 
@@ -34,8 +34,8 @@ impl<'pipe, 'interrupt, const N: usize> Dispatch<'pipe, 'interrupt, N> {
 
     fn find_app<'a, 'b>(
         command: Command,
-        apps: &'a mut [&'b mut dyn App<'interrupt, N>],
-    ) -> Option<&'a mut &'b mut dyn App<'interrupt, N>> {
+        apps: &'a mut [&'b mut dyn App<'interrupt>],
+    ) -> Option<&'a mut &'b mut dyn App<'interrupt>> {
         apps.iter_mut()
             .find(|app| app.commands().contains(&command))
     }
@@ -75,7 +75,7 @@ impl<'pipe, 'interrupt, const N: usize> Dispatch<'pipe, 'interrupt, N> {
     }
 
     #[inline(never)]
-    fn call_app(&mut self, app: &mut dyn App<'interrupt, N>, command: Command, request: &Bytes<N>) {
+    fn call_app(&mut self, app: &mut dyn App<'interrupt>, command: Command, request: &BytesView) {
         let response_buffer = self
             .responder
             .response_mut()
@@ -106,9 +106,9 @@ impl<'pipe, 'interrupt, const N: usize> Dispatch<'pipe, 'interrupt, N> {
     }
 
     #[inline(never)]
-    pub fn poll(&mut self, apps: &mut [&mut dyn App<'interrupt, N>]) -> bool {
+    pub fn poll(&mut self, apps: &mut [&mut dyn App<'interrupt>]) -> bool {
         // We could call take_request directly, but for some reason this doubles stack usage.
-        let mut message_buffer = Bytes::new();
+        let mut message_buffer = Bytes::<1024>::new();
         if let Ok((command, message)) = self.responder.request() {
             // info_now!("cmd: {}", u8::from(command));
             // info_now!("cmd: {:?}", command);