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