ThreadedSocketService panics while accepting connection

[wikylyu]

I'm learning to use gio. And below is my code

use glib::MainContext;
use glib::MainLoop;
use gio::ThreadedSocketService;
use gio::prelude::*;

fn main() {
    let mainloop = MainLoop::new(Some(&MainContext::default()),false);

    let service  = ThreadedSocketService::new(-1);

    if let Err(err) = service.add_inet_port::<glib::Object>(32321, None) {
        return;
    }
    println!("listen 32321");

    service.connect_run(move |_,c,_|->bool{
        println!("{:?}",c);
        return false;
    });

    mainloop.run();
}

When ThreadedSocketService receives a connection, it panics.

   Compiling gtk v0.1.0 (/home/wiky/temp/rust/gtk)
warning: unused variable: `err`
  --> src/main.rs:11:16
   |
11 |     if let Err(err) = service.add_inet_port::<glib::Object>(32321, None) {
   |                ^^^ help: consider prefixing with an underscore: `_err`
   |
   = note: `#[warn(unused_variables)]` on by default

    Finished dev [unoptimized + debuginfo] target(s) in 1.67s
     Running `target/debug/gtk`
listen 32321

connection established

thread '<unnamed>' panicked at 'assertion failed: crate::types::instance_of::<Self>(ptr as *const _)', <::std::macros::panic macros>:2:4
stack backtrace:
   0:     0x55d6a79929f4 - backtrace::backtrace::libunwind::trace::h5d52ba5f20882f09
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
   1:     0x55d6a79929f4 - backtrace::backtrace::trace_unsynchronized::hceee092869668a74
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
   2:     0x55d6a79929f4 - std::sys_common::backtrace::_print_fmt::ha312c2904605e4d5
                               at src/libstd/sys_common/backtrace.rs:78
   3:     0x55d6a79929f4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5b9981092140b727
                               at src/libstd/sys_common/backtrace.rs:59
   4:     0x55d6a79ab7fc - core::fmt::write::h5f6d7d8de88b4173
                               at src/libcore/fmt/mod.rs:1063
   5:     0x55d6a7990f33 - std::io::Write::write_fmt::h893169117de3cc15
                               at src/libstd/io/mod.rs:1426
   6:     0x55d6a7994fa5 - std::sys_common::backtrace::_print::h8ab61d4120f7a335
                               at src/libstd/sys_common/backtrace.rs:62
   7:     0x55d6a7994fa5 - std::sys_common::backtrace::print::h8aae19fbb153bf2a
                               at src/libstd/sys_common/backtrace.rs:49
   8:     0x55d6a7994fa5 - std::panicking::default_hook::{{closure}}::h1ee5b7d8b6f83429
                               at src/libstd/panicking.rs:204
   9:     0x55d6a7994cf2 - std::panicking::default_hook::hd6c32c13403f9210
                               at src/libstd/panicking.rs:224
  10:     0x55d6a7995562 - std::panicking::rust_panic_with_hook::h1f2449d529a25f22
                               at src/libstd/panicking.rs:470
  11:     0x55d6a798b441 - std::panicking::begin_panic::h5a36cc3b26b56542
                               at /rustc/8d69840ab92ea7f4d323420088dd8c9775f180cd/src/libstd/panicking.rs:397
  12:     0x55d6a798540a - <glib::object::Object as glib::translate::FromGlibPtrBorrow<*mut gobject_sys::GObject>>::from_glib_borrow::hfc80280ad2f153ca
                               at /home/wiky/.cargo/registry/src/github.com-1ecc6299db9ec823/gio-0.8.1/<::std::macros::panic macros>:2
  13:     0x55d6a79849ee - glib::translate::from_glib_borrow::h80f9642bc3606747
                               at /home/wiky/.cargo/registry/src/github.com-1ecc6299db9ec823/glib-0.9.3/src/translate.rs:1228
  14:     0x55d6a7983498 - <O as gio::auto::threaded_socket_service::ThreadedSocketServiceExt>::connect_run::run_trampoline::hb9b61c2da889377e
                               at /home/wiky/.cargo/registry/src/github.com-1ecc6299db9ec823/gio-0.8.1/src/auto/threaded_socket_service.rs:87
  15:     0x7f6b126f53b7 - <unknown>
  16:     0x7f6b12625a56 - <unknown>
  17:     0x7f6b12643dd1 - g_signal_emit_valist
  18:     0x7f6b126450d3 - g_signal_emit
  19:     0x7f6b12729e39 - <unknown>
  20:     0x7f6b125641d4 - <unknown>
  21:     0x7f6b12563931 - <unknown>
  22:     0x7f6b124c8609 - start_thread
  23:     0x7f6b123d2103 - __clone
  24:                0x0 - <unknown>
fatal runtime error: failed to initiate panic, error 5
Aborted (core dumped)

[sdroege]

Indeed, fixing. Thanks for reporting :)

[sdroege]

See #301

[wikylyu]

That's cool. thanks for your work. And when will new version be released?

[sdroege]

In 2-3 weeks I hope