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LibCore: Allow EventLoop to manage and cancel promises

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In this context, the promises are considered "jobs", and such jobs
depend in some way on the event loop. Therefore, they can be added to
the event loop, and the event loop will cancel all of its pending jobs
when it ends.
This commit is contained in:
kleines Filmröllchen 2022-12-29 13:20:44 +01:00 • committed by Linus Groh
parent bfd9f681f7
commit 30295bd988
2 changed files with 26 additions and 1 deletions
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7
Userland/Libraries/LibCore/EventLoop.h
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@ -1,6 +1,6 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, kleines Filmröllchen <malu.bertsch@gmail.com>
* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
@ -47,6 +47,8 @@ namespace Core {
//
// EventLoop has one final responsibility: Handling the InspectorServer connection and processing requests to the Object hierarchy.
class EventLoop {
friend struct EventLoopPusher;
public:
enum class MakeInspectable {
No,
@ -84,6 +86,8 @@ public:
void post_event(Object& receiver, NonnullOwnPtr<Event>&&, ShouldWake = ShouldWake::No);
void wake_once(Object& receiver, int custom_event_type);
void add_job(NonnullRefPtr<Promise<NonnullRefPtr<Object>>> job_promise);
void deferred_invoke(Function<void()> invokee)
{
auto context = DeferredInvocationContext::construct();
@ -141,6 +145,7 @@ private:
};
Vector<QueuedEvent, 64> m_queued_events;
Vector<NonnullRefPtr<Promise<NonnullRefPtr<Object>>>> m_pending_promises;
static pid_t s_pid;
bool m_exit_requested { false };