Files
array_init
bitflags
byteorder
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futures_task
futures_util
async_await
future
lock
sink
stream
task
gio
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action.rsaction_group.rsaction_map.rsapp_info.rsapp_info_monitor.rsapp_launch_context.rsapplication.rsapplication_command_line.rsbuffered_input_stream.rsbuffered_output_stream.rsbytes_icon.rscancellable.rscharset_converter.rsconstants.rsconverter.rsconverter_input_stream.rsconverter_output_stream.rscredentials.rsdata_input_stream.rsdata_output_stream.rsdesktop_app_info.rsdrive.rsemblem.rsemblemed_icon.rsenums.rsfile.rsfile_attribute_matcher.rsfile_enumerator.rsfile_icon.rsfile_info.rsfile_input_stream.rsfile_io_stream.rsfile_monitor.rsfile_output_stream.rsfilename_completer.rsfilter_input_stream.rsfilter_output_stream.rsflags.rsfunctions.rsicon.rsinet_address.rsinet_address_mask.rsinet_socket_address.rsinput_stream.rsio_stream.rsloadable_icon.rsmemory_input_stream.rsmemory_output_stream.rsmenu.rsmenu_attribute_iter.rsmenu_item.rsmenu_link_iter.rsmenu_model.rsmod.rsmount.rsmount_operation.rsnetwork_address.rsnetwork_monitor.rsnetwork_service.rsnotification.rsoutput_stream.rspermission.rspollable_input_stream.rspollable_output_stream.rsproperty_action.rsproxy.rsproxy_address.rsproxy_resolver.rsremote_action_group.rsresolver.rsresource.rsseekable.rssettings.rssettings_backend.rssettings_schema.rssettings_schema_key.rssettings_schema_source.rssimple_action.rssimple_action_group.rssimple_permission.rssocket.rssocket_address.rssocket_address_enumerator.rssocket_client.rssocket_connectable.rssocket_connection.rssocket_listener.rssocket_service.rssrv_target.rssubprocess.rssubprocess_launcher.rstcp_connection.rsthemed_icon.rsthreaded_socket_service.rstls_certificate.rstls_client_connection.rstls_connection.rstls_database.rstls_file_database.rstls_interaction.rstls_password.rstls_server_connection.rsunix_input_stream.rsunix_output_stream.rsunix_socket_address.rsvfs.rsvolume.rsvolume_monitor.rszlib_compressor.rszlib_decompressor.rs
subclass
gio_sys
glib
glib_sys
gobject_sys
gstreamer
gstreamer_app
gstreamer_app_sys
gstreamer_audio
gstreamer_audio_sys
gstreamer_base
gstreamer_base_sys
gstreamer_check
gstreamer_check_sys
gstreamer_editing_services
gstreamer_editing_services_sys
gstreamer_gl
gstreamer_gl_sys
gstreamer_net
gstreamer_net_sys
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gstreamer_pbutils_sys
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gstreamer_player_sys
gstreamer_rtp
gstreamer_rtp_sys
gstreamer_rtsp
gstreamer_rtsp_server
gstreamer_rtsp_server_sys
gstreamer_rtsp_sys
gstreamer_sdp
gstreamer_sdp_sys
gstreamer_sys
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gstreamer_video_sys
gstreamer_webrtc
gstreamer_webrtc_sys
lazy_static
libc
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num_integer
num_rational
num_traits
paste
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pin_utils
proc_macro2
proc_macro_hack
proc_macro_nested
quote
serde
serde_bytes
serde_derive
slab
syn
unicode_xid
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use std::fmt::{self, Debug};
use std::thread::{self, ThreadId};

/// ThreadBound is a Sync-maker and Send-maker that allows accessing a value
/// of type T only from the original thread on which the ThreadBound was
/// constructed.
pub struct ThreadBound<T> {
    value: T,
    thread_id: ThreadId,
}

unsafe impl<T> Sync for ThreadBound<T> {}

// Send bound requires Copy, as otherwise Drop could run in the wrong place.
unsafe impl<T: Copy> Send for ThreadBound<T> {}

impl<T> ThreadBound<T> {
    pub fn new(value: T) -> Self {
        ThreadBound {
            value,
            thread_id: thread::current().id(),
        }
    }

    pub fn get(&self) -> Option<&T> {
        if thread::current().id() == self.thread_id {
            Some(&self.value)
        } else {
            None
        }
    }
}

impl<T: Debug> Debug for ThreadBound<T> {
    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
        match self.get() {
            Some(value) => Debug::fmt(value, formatter),
            None => formatter.write_str("unknown"),
        }
    }
}