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SIGSEGV when a sleep isn't done after a dispatch #15

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L-as opened this issue Feb 17, 2018 · 2 comments
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SIGSEGV when a sleep isn't done after a dispatch #15

L-as opened this issue Feb 17, 2018 · 2 comments
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bug Something isn't working

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@L-as
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L-as commented Feb 17, 2018

The following code crashes:

#![allow(unused_imports)]

use std::thread::{spawn, sleep};
use std::time::Duration;
use urlencoding;
use web_view as webview;

pub fn main() {
	let size      = (800, 600);
	let resizable = true;
	let debug     = true;
	let url       = "data:text/html,".to_string() + &urlencoding::encode(HTML);
	webview::run("timer example", &url, Some(size), resizable, debug, move |webview| {
		spawn(move || {
			webview.dispatch(|_webview, _userdata| {});
			//sleep(Duration::from_millis(100));
		});
	}, move |_webview, _arg, _userdata| {
	}, ());
}

const HTML: &'static str = r#"
<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>laspad</title>
	</head>
	<body>
	</body>
</html>
"#;

If you uncomment the sleep, it runs successfully.
@Boscop Boscop added the bug Something isn't working label Feb 22, 2018
@Boscop
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Boscop commented Feb 22, 2018

Hm, weird..
Any idea why?

It must be caused by the thread exiting before the dispatched closure gets called. But the closure should be callable independently of the thread, right?

@L-as
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L-as commented Feb 22, 2018

I honestly have no idea, and it seems to only happen on one of my machines (I think). Does it happen on yours too?

Also, I'm using the latest linux kernel on arch linux with nightly rust (last updated a few days ago).

@wezm wezm mentioned this issue Jul 5, 2018
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@green-s green-s mentioned this issue Nov 4, 2018
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@Boscop @L-as