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
|
// Copyright (C) 2016-2017 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[macro_export]
macro_rules! panic_to_error(
($element:expr, $panicked:expr, $ret:expr, $code:block) => {{
use std::panic::{self, AssertUnwindSafe};
use std::sync::atomic::Ordering;
if $panicked.load(Ordering::Relaxed) {
$element.post_error_message(&gst_error_msg!(gst::LibraryError::Failed, ["Panicked"]));
$ret
} else {
let result = panic::catch_unwind(AssertUnwindSafe(|| $code));
match result {
Ok(result) => result,
Err(err) => {
$panicked.store(true, Ordering::Relaxed);
if let Some(cause) = err.downcast_ref::<&str>() {
$element.post_error_message(&gst_error_msg!(gst::LibraryError::Failed, ["Panicked: {}", cause]));
} else if let Some(cause) = err.downcast_ref::<String>() {
$element.post_error_message(&gst_error_msg!(gst::LibraryError::Failed, ["Panicked: {}", cause]));
} else {
$element.post_error_message(&gst_error_msg!(gst::LibraryError::Failed, ["Panicked"]));
}
$ret
}
}
}
}};
);
|