74 lines
2.2 KiB
C++
74 lines
2.2 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/cache/ManagerId.h"
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#include "nsIPrincipal.h"
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#include "nsProxyRelease.h"
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#include "mozilla/RefPtr.h"
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#include "nsThreadUtils.h"
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namespace mozilla {
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namespace dom {
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namespace cache {
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// static
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nsresult
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ManagerId::Create(nsIPrincipal* aPrincipal, ManagerId** aManagerIdOut)
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{
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MOZ_ASSERT(NS_IsMainThread());
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// The QuotaManager::GetInfoFromPrincipal() has special logic for system
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// and about: principals. We need to use the same modified origin in
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// order to interpret calls from QM correctly.
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nsCString quotaOrigin;
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nsresult rv = QuotaManager::GetInfoFromPrincipal(aPrincipal,
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nullptr, //group
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"aOrigin,
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nullptr); // is app
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if (NS_WARN_IF(NS_FAILED(rv))) { return rv; }
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RefPtr<ManagerId> ref = new ManagerId(aPrincipal, quotaOrigin);
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ref.forget(aManagerIdOut);
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return NS_OK;
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}
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already_AddRefed<nsIPrincipal>
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ManagerId::Principal() const
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{
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MOZ_ASSERT(NS_IsMainThread());
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nsCOMPtr<nsIPrincipal> ref = mPrincipal;
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return ref.forget();
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}
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ManagerId::ManagerId(nsIPrincipal* aPrincipal, const nsACString& aQuotaOrigin)
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: mPrincipal(aPrincipal)
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, mQuotaOrigin(aQuotaOrigin)
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{
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MOZ_ASSERT(mPrincipal);
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}
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ManagerId::~ManagerId()
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{
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// If we're already on the main thread, then default destruction is fine
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if (NS_IsMainThread()) {
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return;
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}
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// Otherwise we need to proxy to main thread to do the release
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// The PBackground worker thread shouldn't be running after the main thread
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// is stopped. So main thread is guaranteed to exist here.
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nsCOMPtr<nsIThread> mainThread = do_GetMainThread();
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MOZ_ASSERT(mainThread);
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NS_ProxyRelease(mainThread, mPrincipal.forget().take());
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}
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} // namespace cache
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} // namespace dom
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} // namespace mozilla
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