1 // Copyright 2025, The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 use crate::Transport; 16 use liberror::Result; 17 18 /// Trait for a device-local fastboot-like session. 19 pub trait LocalSession { 20 /// Updates the context of the local session. 21 /// Polls inputs, updates graphics, and so forth. update(&mut self, buf: &mut [u8]) -> Result<usize>22 async fn update(&mut self, buf: &mut [u8]) -> Result<usize>; 23 24 /// This is a hack to allow test structures to capture outgoing packets. process_outgoing_packet(&mut self, _: &[u8])25 async fn process_outgoing_packet(&mut self, _: &[u8]) {} 26 } 27 28 impl<T: LocalSession> Transport for T { receive_packet(&mut self, out: &mut [u8]) -> Result<usize>29 async fn receive_packet(&mut self, out: &mut [u8]) -> Result<usize> { 30 self.update(out).await 31 } 32 send_packet(&mut self, buf: &[u8]) -> Result<()>33 async fn send_packet(&mut self, buf: &[u8]) -> Result<()> { 34 self.process_outgoing_packet(buf).await; 35 Ok(()) 36 } 37 } 38