author Mike Hommey <>
Wed, 01 Feb 2023 16:38:27 +0000
changeset 651404 b7f07512450399f35fc38a7e94241b19a4c2693c
parent 578353 5acd53fb30033afb78ce6b0514448121565b3514
permissions -rw-r--r--
Bug 1699228 - Update contribution quickref to point to the list of supported windows versions. r=firefox-build-system-reviewers,sylvestre,andi Differential Revision:

/* -*- 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 */

#include "mozilla/dom/cache/ManagerId.h"

#include "CacheCommon.h"

#include "mozilla/dom/quota/QuotaManager.h"
#include "nsIPrincipal.h"
#include "nsProxyRelease.h"
#include "mozilla/RefPtr.h"
#include "nsThreadUtils.h"

namespace mozilla::dom::cache {

using mozilla::dom::quota::QuotaManager;

// static
Result<SafeRefPtr<ManagerId>, nsresult> ManagerId::Create(
    nsIPrincipal* aPrincipal) {

  // QuotaManager::GetOriginFromPrincipal() has special logic for system
  // and about: principals.  We need to use the same modified origin in
  // order to interpret calls from QM correctly.
  QM_TRY_INSPECT(const auto& quotaOrigin,

  return MakeSafeRefPtr<ManagerId>(aPrincipal, quotaOrigin, ConstructorGuard{});

already_AddRefed<nsIPrincipal> ManagerId::Principal() const {
  nsCOMPtr<nsIPrincipal> ref = mPrincipal;
  return ref.forget();

ManagerId::ManagerId(nsIPrincipal* aPrincipal, const nsACString& aQuotaOrigin,
    : mPrincipal(aPrincipal), mQuotaOrigin(aQuotaOrigin) {

ManagerId::~ManagerId() {
  // If we're already on the main thread, then default destruction is fine
  if (NS_IsMainThread()) {

  // Otherwise we need to proxy to main thread to do the release

  // The PBackground worker thread shouldn't be running after the main thread
  // is stopped.  So main thread is guaranteed to exist here.
  NS_ReleaseOnMainThread("ManagerId::mPrincipal", mPrincipal.forget());

}  // namespace mozilla::dom::cache