49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_UniqueContentParentKeepAlive_h
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#define mozilla_dom_UniqueContentParentKeepAlive_h
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#include "mozilla/RefPtr.h"
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#include "mozilla/UniquePtr.h"
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#include "nsIDOMProcessParent.h"
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namespace mozilla::dom {
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class ContentParent;
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class ThreadsafeContentParentHandle;
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struct ContentParentKeepAliveDeleter {
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void operator()(ContentParent* aProcess);
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void operator()(ThreadsafeContentParentHandle* aHandle);
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uint64_t mBrowserId = 0;
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};
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// Helper for managing a ContentParent combined with the KeepAlive which is
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// keeping it alive for use by a specific BrowserId.
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//
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// This generally should not be created directly, but rather should be created
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// using `ContentParent::AddKeepAlive`.
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using UniqueContentParentKeepAlive =
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UniquePtr<ContentParent, ContentParentKeepAliveDeleter>;
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using UniqueThreadsafeContentParentKeepAlive =
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UniquePtr<ThreadsafeContentParentHandle, ContentParentKeepAliveDeleter>;
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UniqueContentParentKeepAlive UniqueContentParentKeepAliveFromThreadsafe(
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UniqueThreadsafeContentParentKeepAlive aKeepAlive);
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UniqueThreadsafeContentParentKeepAlive UniqueContentParentKeepAliveToThreadsafe(
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UniqueContentParentKeepAlive aKeepAlive);
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// Wrap a UniqueContentParentKeepAlive to make it usable from JS.
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//
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// Should not be called on a KeepAlive for a still-launching ContentParent.
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already_AddRefed<nsIContentParentKeepAlive> WrapContentParentKeepAliveForJS(
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UniqueContentParentKeepAlive aKeepAlive);
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} // namespace mozilla::dom
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#endif // mozilla_dom_UniqueContentParentKeepAlive_h
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