1 // Licensed to the Apache Software Foundation (ASF) under one
2 // or more contributor license agreements. See the NOTICE file
3 // distributed with this work for additional information
4 // regarding copyright ownership. The ASF licenses this file
5 // to you under the Apache License, Version 2.0 (the
6 // "License"); you may not use this file except in compliance
7 // with the License. You may obtain a copy of the License at
8 //
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing,
12 // software distributed under the License is distributed on an
13 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14 // KIND, either express or implied. See the License for the
15 // specific language governing permissions and limitations
16 // under the License.
17
18 use optee_teec::{Context, Operation, ParamNone, ParamTmpRef, Session, Uuid};
19 use serde::Deserialize;
20 use proto::{UUID, Command};
21
22 #[derive(Deserialize, Debug)]
23 struct Point {
24 x: i32,
25 y: i32,
26 }
27
serde(session: &mut Session) -> optee_teec::Result<()>28 fn serde(session: &mut Session) -> optee_teec::Result<()> {
29 let mut buffer = [0u8; 128];
30 let p0 = ParamTmpRef::new_output(&mut buffer);
31 let mut operation = Operation::new(0, p0 , ParamNone, ParamNone, ParamNone);
32
33 session.invoke_command(Command::DefaultOp as u32, &mut operation)?;
34 let updated_size = operation.parameters().0.updated_size();
35
36 let p: Point = serde_json::from_slice(&buffer[..updated_size]).unwrap();
37 println!("{:?}", p);
38
39 Ok(())
40 }
41
main() -> optee_teec::Result<()>42 fn main() -> optee_teec::Result<()> {
43 let mut ctx = Context::new()?;
44 let uuid =
45 Uuid::parse_str(UUID).unwrap();
46 let mut session = ctx.open_session(uuid)?;
47
48 serde(&mut session)?;
49
50 println!("Success");
51 Ok(())
52 }
53