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Quota clients need a way to track RemoteQuotaObjectParents, so they can release their directory locks only when RemoteQuotaObjectParents are destroyed (which releases the CanonicalQuotaObject). Differential Revision: https://phabricator.services.mozilla.com/D164341
73 lines
2.4 KiB
C++
73 lines
2.4 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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#include "QuotaObject.h"
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#include "CanonicalQuotaObject.h"
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#include "mozilla/dom/quota/IPCQuotaObject.h"
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#include "mozilla/dom/quota/PRemoteQuotaObject.h"
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#include "mozilla/dom/quota/RemoteQuotaObjectChild.h"
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#include "mozilla/dom/quota/RemoteQuotaObjectParent.h"
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#include "mozilla/dom/quota/RemoteQuotaObjectParentTracker.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "RemoteQuotaObject.h"
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namespace mozilla::dom::quota {
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CanonicalQuotaObject* QuotaObject::AsCanonicalQuotaObject() {
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return mIsRemote ? nullptr : static_cast<CanonicalQuotaObject*>(this);
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}
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RemoteQuotaObject* QuotaObject::AsRemoteQuotaObject() {
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return mIsRemote ? static_cast<RemoteQuotaObject*>(this) : nullptr;
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}
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IPCQuotaObject QuotaObject::Serialize(nsIInterfaceRequestor* aCallbacks) {
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MOZ_RELEASE_ASSERT(XRE_IsParentProcess());
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MOZ_RELEASE_ASSERT(!NS_IsMainThread());
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MOZ_RELEASE_ASSERT(!mozilla::ipc::IsOnBackgroundThread());
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MOZ_RELEASE_ASSERT(!GetCurrentThreadWorkerPrivate());
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MOZ_RELEASE_ASSERT(!mIsRemote);
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mozilla::ipc::Endpoint<PRemoteQuotaObjectParent> parentEndpoint;
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mozilla::ipc::Endpoint<PRemoteQuotaObjectChild> childEndpoint;
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MOZ_ALWAYS_SUCCEEDS(
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PRemoteQuotaObject::CreateEndpoints(&parentEndpoint, &childEndpoint));
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nsCOMPtr<RemoteQuotaObjectParentTracker> tracker =
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do_GetInterface(aCallbacks);
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auto actor =
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MakeRefPtr<RemoteQuotaObjectParent>(AsCanonicalQuotaObject(), tracker);
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if (tracker) {
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tracker->RegisterRemoteQuotaObjectParent(WrapNotNull(actor));
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}
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parentEndpoint.Bind(actor);
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IPCQuotaObject ipcQuotaObject;
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ipcQuotaObject.childEndpoint() = std::move(childEndpoint);
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return ipcQuotaObject;
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}
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// static
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RefPtr<QuotaObject> QuotaObject::Deserialize(IPCQuotaObject& aQuotaObject) {
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MOZ_RELEASE_ASSERT(!NS_IsMainThread());
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MOZ_RELEASE_ASSERT(!mozilla::ipc::IsOnBackgroundThread());
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MOZ_RELEASE_ASSERT(!GetCurrentThreadWorkerPrivate());
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auto actor = MakeRefPtr<RemoteQuotaObjectChild>();
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aQuotaObject.childEndpoint().Bind(actor);
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return MakeRefPtr<RemoteQuotaObject>(actor);
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}
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} // namespace mozilla::dom::quota
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