tor-browser

The Tor Browser
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RemoteQuotaObjectParent.cpp (1995B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "RemoteQuotaObjectParent.h"
      8 
      9 #include "CanonicalQuotaObject.h"
     10 #include "mozilla/dom/quota/RemoteQuotaObjectParentTracker.h"
     11 #include "mozilla/dom/quota/ResultExtensions.h"
     12 #include "mozilla/ipc/BackgroundParent.h"
     13 
     14 namespace mozilla::dom::quota {
     15 
     16 RemoteQuotaObjectParent::RemoteQuotaObjectParent(
     17    RefPtr<CanonicalQuotaObject> aCanonicalQuotaObject,
     18    nsCOMPtr<RemoteQuotaObjectParentTracker> aTracker)
     19    : mCanonicalQuotaObject(std::move(aCanonicalQuotaObject)),
     20      mTracker(std::move(aTracker)) {}
     21 
     22 RemoteQuotaObjectParent::~RemoteQuotaObjectParent() { MOZ_ASSERT(!CanSend()); }
     23 
     24 mozilla::ipc::IPCResult RemoteQuotaObjectParent::RecvMaybeUpdateSize(
     25    int64_t aSize, bool aTruncate, bool* aResult) {
     26  MOZ_ASSERT(!NS_IsMainThread());
     27  MOZ_ASSERT(!mozilla::ipc::IsOnBackgroundThread());
     28  MOZ_ASSERT(!GetCurrentThreadWorkerPrivate());
     29 
     30  *aResult = mCanonicalQuotaObject->MaybeUpdateSize(aSize, aTruncate);
     31  return IPC_OK();
     32 }
     33 
     34 void RemoteQuotaObjectParent::ActorDestroy(ActorDestroyReason aWhy) {
     35  QM_WARNONLY_TRY(MOZ_TO_RESULT(CheckFileAfterClose()));
     36 
     37  mCanonicalQuotaObject = nullptr;
     38 
     39  if (mTracker) {
     40    mTracker->UnregisterRemoteQuotaObjectParent(WrapNotNullUnchecked(this));
     41  }
     42 }
     43 
     44 nsresult RemoteQuotaObjectParent::CheckFileAfterClose() {
     45  MOZ_ASSERT(mCanonicalQuotaObject);
     46 
     47  QM_TRY_INSPECT(const auto& file,
     48                 QM_NewLocalFile(mCanonicalQuotaObject->Path()));
     49 
     50  QM_TRY_UNWRAP(auto size, MOZ_TO_RESULT_INVOKE_MEMBER(file, GetFileSize));
     51 
     52  DebugOnly<bool> res =
     53      mCanonicalQuotaObject->MaybeUpdateSize(size, /* aTruncate */ true);
     54  MOZ_ASSERT(res);
     55 
     56  return NS_OK;
     57 }
     58 
     59 }  // namespace mozilla::dom::quota