-
Notifications
You must be signed in to change notification settings - Fork 532
/
call_return_code.rs
56 lines (48 loc) · 1.65 KB
/
call_return_code.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
// This file is part of Substrate.
// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! This calls the supplied dest and transfers 100 balance during this call and copies
//! the return code of this call to the output buffer.
//! It also forwards its input to the callee.
#![no_std]
#![no_main]
use common::input;
use uapi::{HostFn, HostFnImpl as api};
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn deploy() {}
#[no_mangle]
#[polkavm_derive::polkavm_export]
pub extern "C" fn call() {
input!(
100,
callee_addr: [u8; 32],
input: [u8],
);
// Call the callee
let err_code = match api::call_v2(
uapi::CallFlags::empty(),
callee_addr,
0u64, // How much ref_time to devote for the execution. 0 = all.
0u64, // How much proof_size to devote for the execution. 0 = all.
None, // No deposit limit.
&100u64.to_le_bytes(), // Value transferred to the contract.
input,
None,
) {
Ok(_) => 0u32,
Err(code) => code as u32,
};
api::return_value(uapi::ReturnFlags::empty(), &err_code.to_le_bytes());
}