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Parse metadata in EventSource
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parent
72cb856e31
commit
388c3bff7b
1 changed files with 88 additions and 6 deletions
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@ -6,7 +6,9 @@ use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::EventSourceBinding::{EventSourceInit, EventSourceMethods, Wrap};
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use dom::bindings::codegen::Bindings::EventSourceBinding::{EventSourceInit, EventSourceMethods, Wrap};
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use dom::bindings::error::{Error, Fallible};
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use dom::bindings::error::{Error, Fallible};
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::Root;
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use dom::bindings::js::Root;
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use dom::bindings::refcounted::Trusted;
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use dom::bindings::reflector::reflect_dom_object;
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use dom::bindings::reflector::reflect_dom_object;
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use dom::bindings::str::DOMString;
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use dom::bindings::str::DOMString;
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use dom::eventtarget::EventTarget;
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use dom::eventtarget::EventTarget;
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@ -14,19 +16,22 @@ use dom::globalscope::GlobalScope;
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use hyper::header::{Accept, qitem};
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use hyper::header::{Accept, qitem};
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use ipc_channel::ipc;
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use ipc_channel::ipc;
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use ipc_channel::router::ROUTER;
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use ipc_channel::router::ROUTER;
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use mime::{Mime, TopLevel, SubLevel};
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use net_traits::{CoreResourceMsg, FetchMetadata, FetchResponseListener, NetworkError};
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use net_traits::{CoreResourceMsg, FetchMetadata, FetchResponseListener, NetworkError};
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use net_traits::request::{CacheMode, CorsSettings, CredentialsMode};
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use net_traits::request::{CacheMode, CorsSettings, CredentialsMode};
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use net_traits::request::{RequestInit, RequestMode};
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use net_traits::request::{RequestInit, RequestMode};
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use network_listener::{NetworkListener, PreInvoke};
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use network_listener::{NetworkListener, PreInvoke};
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use script_thread::{Runnable, RunnableWrapper};
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use std::cell::Cell;
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use std::cell::Cell;
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use std::sync::{Arc, Mutex};
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use std::sync::{Arc, Mutex};
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use task_source::TaskSource;
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use task_source::networking::NetworkingTaskSource;
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use url::Url;
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use url::Url;
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#[derive(JSTraceable, PartialEq, Copy, Clone, Debug, HeapSizeOf)]
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#[derive(JSTraceable, PartialEq, Copy, Clone, Debug, HeapSizeOf)]
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/// https://html.spec.whatwg.org/multipage/#dom-eventsource-readystate
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/// https://html.spec.whatwg.org/multipage/#dom-eventsource-readystate
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enum ReadyState {
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enum ReadyState {
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Connecting = 0,
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Connecting = 0,
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#[allow(dead_code)]
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Open = 1,
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Open = 1,
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Closed = 2
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Closed = 2
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}
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}
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@ -36,12 +41,32 @@ pub struct EventSource {
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eventtarget: EventTarget,
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eventtarget: EventTarget,
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url: DOMRefCell<Option<Url>>,
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url: DOMRefCell<Option<Url>>,
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request: DOMRefCell<Option<RequestInit>>,
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request: DOMRefCell<Option<RequestInit>>,
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ready_state: Cell<EventSourceReadyState>,
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ready_state: Cell<ReadyState>,
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with_credentials: bool,
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with_credentials: bool,
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last_event_id: DOMRefCell<DOMString>
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last_event_id: DOMRefCell<DOMString>
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}
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}
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struct EventSourceContext;
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struct EventSourceContext {
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event_source: Trusted<EventSource>,
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networking_task_source: NetworkingTaskSource,
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wrapper: RunnableWrapper
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}
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impl EventSourceContext {
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fn announce_the_connection(&self) {
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let runnable = box AnnounceConnectionRunnable {
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event_source: self.event_source.clone()
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};
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let _ = self.networking_task_source.queue_with_wrapper(runnable, &self.wrapper);
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}
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fn fail_the_connection(&self) {
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let runnable = box FailConnectionRunnable {
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event_source: self.event_source.clone()
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};
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let _ = self.networking_task_source.queue_with_wrapper(runnable, &self.wrapper);
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}
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}
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impl FetchResponseListener for EventSourceContext {
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impl FetchResponseListener for EventSourceContext {
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fn process_request_body(&mut self) {
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fn process_request_body(&mut self) {
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@ -52,8 +77,27 @@ impl FetchResponseListener for EventSourceContext {
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// TODO
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// TODO
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}
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}
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fn process_response(&mut self, _metadata: Result<FetchMetadata, NetworkError>) {
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fn process_response(&mut self, metadata: Result<FetchMetadata, NetworkError>) {
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// TODO
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match metadata {
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Ok(fm) => {
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let meta = match fm {
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FetchMetadata::Unfiltered(m) => m,
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FetchMetadata::Filtered { unsafe_, .. } => unsafe_
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};
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match meta.content_type {
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None => self.fail_the_connection(),
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Some(ct) => match ct.into_inner().0 {
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Mime(TopLevel::Text, SubLevel::EventStream, _) =>
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self.announce_the_connection(),
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_ => self.fail_the_connection()
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}
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}
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}
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Err(_) => {
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// FIXME: Fail the connection for now, but it should really attempt to re-establish
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self.fail_the_connection();
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}
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}
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}
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}
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fn process_response_chunk(&mut self, mut _chunk: Vec<u8>) {
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fn process_response_chunk(&mut self, mut _chunk: Vec<u8>) {
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@ -129,7 +173,11 @@ impl EventSource {
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// Step 12
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// Step 12
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*ev.request.borrow_mut() = Some(request.clone());
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*ev.request.borrow_mut() = Some(request.clone());
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// Step 14
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// Step 14
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let context = EventSourceContext;
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let context = EventSourceContext {
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event_source: Trusted::new(&ev),
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networking_task_source: global.networking_task_source(),
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wrapper: global.get_runnable_wrapper()
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};
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let listener = NetworkListener {
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let listener = NetworkListener {
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context: Arc::new(Mutex::new(context)),
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context: Arc::new(Mutex::new(context)),
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task_source: global.networking_task_source(),
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task_source: global.networking_task_source(),
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@ -176,3 +224,37 @@ impl EventSourceMethods for EventSource {
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// TODO: Terminate ongoing fetch
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// TODO: Terminate ongoing fetch
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}
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}
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}
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}
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pub struct AnnounceConnectionRunnable {
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event_source: Trusted<EventSource>,
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}
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impl Runnable for AnnounceConnectionRunnable {
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fn name(&self) -> &'static str { "EventSource AnnounceConnectionRunnable" }
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// https://html.spec.whatwg.org/multipage/#announce-the-connection
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fn handler(self: Box<AnnounceConnectionRunnable>) {
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let event_source = self.event_source.root();
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if event_source.ready_state.get() != ReadyState::Closed {
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event_source.ready_state.set(ReadyState::Open);
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event_source.upcast::<EventTarget>().fire_event(atom!("open"));
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}
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}
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}
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pub struct FailConnectionRunnable {
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event_source: Trusted<EventSource>,
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}
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impl Runnable for FailConnectionRunnable {
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fn name(&self) -> &'static str { "EventSource FailConnectionRunnable" }
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// https://html.spec.whatwg.org/multipage/#fail-the-connection
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fn handler(self: Box<FailConnectionRunnable>) {
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let event_source = self.event_source.root();
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if event_source.ready_state.get() != ReadyState::Closed {
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event_source.ready_state.set(ReadyState::Closed);
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event_source.upcast::<EventTarget>().fire_event(atom!("error"));
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}
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}
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}
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