Having one coroutine exit stops the entire program.

[BookOwl]

For some reason whenever one of the coroutines created with this crate exit, my entire program also exits. Here is a simple test case that demonstrates the issue:

extern crate coroutine;
use coroutine::asymmetric::*;

fn main() {
    let mut c = Coroutine::spawn(move|h, data| {
        h.yield_with(0);
        h.yield_with(0);
        0
    });
    println!("{:?}", c.state());
    c.resume(0);
    println!("{:?}", c.state());
    c.resume(0);
    println!("{:?}", c.state());
    c.resume(0); // exits here
    println!("{:?}", c.state());
    println!("goodbye", );
}

[BookOwl]

Here is the log generated:

10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:255] Coroutine `0x107800d70`: yielding to Context(0x1078005d8)
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:198] Coroutine `0x107800d70`: yielding to Context(0x7fff58d2cc78)
Parked
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:255] Coroutine `0x107800d70`: yielding to Context(0x107800348)
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:198] Coroutine `0x107800d70`: yielding to Context(0x7fff58d2cc78)
Parked
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:255] Coroutine `0x107800d70`: yielding to Context(0x107800348)
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:72] Coroutine `0x107800d70`: returned from callback with result 0
10:14:21 [TRACE] coroutine::asymmetric: [/Users/matthew/.cargo/registry/src/github.com-1ecc6299db9ec823/coroutine-0.7.0/src/asymmetric.rs:78] Coroutine `0x107800d70`: finished => dropping stack

[zonyitoo]

Well, I think it just crash right there. Because the internal state of Coroutine has been destroyed after the third c.resume(0) call. So the next c.state() crashed.

[zonyitoo]

Please try the latest commit, it should fix your issue.

[BookOwl]

thanks, it works fine now.