cloud_util/
panic_hook.rs

1// Copyright Rivtower Technologies LLC.
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
15use backtrace::Backtrace;
16use std::{panic, thread};
17
18use crate::graceful_shutdown::ExitType;
19
20/// Set the panic hook
21pub(crate) fn set_panic_handler(tx: flume::Sender<ExitType>) {
22    panic::set_hook(Box::new(move |info| {
23        let location = info.location();
24        let file = location.as_ref().map(|l| l.file()).unwrap_or("<unknown>");
25        let line = location.as_ref().map(|l| l.line()).unwrap_or(0);
26        let msg = match info.payload().downcast_ref::<&'static str>() {
27            Some(s) => *s,
28            None => match info.payload().downcast_ref::<String>() {
29                Some(s) => &s[..],
30                None => "Box<Any>",
31            },
32        };
33        let thread = thread::current();
34        let name = thread.name().unwrap_or("<unnamed>");
35        let backtrace = Backtrace::new();
36        let error = format!(
37            "\n============================\n\
38            {backtrace:?}\n\n\
39            position:\n\
40            Thread {name} panicked at {msg}, {file}:{line}\n\
41            ============================\n\
42            "
43        );
44        eprintln!("{}", error);
45        let _ = tx.send(ExitType::Panic);
46    }));
47}
cloud_util/panic_hook.rs

cloud_util/
panic_hook.rs
