dom/quota/RemoteQuotaObjectParent.cpp

   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