mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 13:45:27 +00:00
4502 lines
109 KiB
C++
4502 lines
109 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 "BlobChild.h"
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#include "BlobParent.h"
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#include "BackgroundParent.h"
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#include "ContentChild.h"
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#include "ContentParent.h"
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#include "FileDescriptorSetChild.h"
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#include "jsapi.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/ClearOnShutdown.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/Monitor.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/unused.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/nsIContentParent.h"
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#include "mozilla/dom/nsIContentChild.h"
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#include "mozilla/dom/PBlobStreamChild.h"
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#include "mozilla/dom/PBlobStreamParent.h"
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#include "mozilla/dom/indexedDB/FileSnapshot.h"
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#include "mozilla/dom/IndexedDatabaseManager.h"
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#include "mozilla/ipc/InputStreamUtils.h"
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#include "mozilla/ipc/PBackgroundChild.h"
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#include "mozilla/ipc/PBackgroundParent.h"
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#include "mozilla/ipc/PFileDescriptorSetParent.h"
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#include "MultipartBlobImpl.h"
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#include "nsDataHashtable.h"
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#include "nsHashKeys.h"
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#include "nsID.h"
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#include "nsIInputStream.h"
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#include "nsIIPCSerializableInputStream.h"
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#include "nsIMultiplexInputStream.h"
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#include "nsIRemoteBlob.h"
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#include "nsISeekableStream.h"
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#include "nsIUUIDGenerator.h"
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#include "nsNetCID.h"
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#include "nsServiceManagerUtils.h"
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#include "nsStringStream.h"
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#include "nsThreadUtils.h"
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#include "nsXULAppAPI.h"
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#include "WorkerPrivate.h"
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#ifdef DEBUG
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#include "BackgroundChild.h" // BackgroundChild::GetForCurrentThread().
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#endif
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#ifdef OS_POSIX
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#include "chrome/common/file_descriptor_set_posix.h"
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#endif
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#define DISABLE_ASSERTS_FOR_FUZZING 0
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#if DISABLE_ASSERTS_FOR_FUZZING
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#define ASSERT_UNLESS_FUZZING(...) do { } while (0)
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#else
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#define ASSERT_UNLESS_FUZZING(...) MOZ_ASSERT(false, __VA_ARGS__)
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#endif
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#define PRIVATE_REMOTE_INPUT_STREAM_IID \
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{0x30c7699f, 0x51d2, 0x48c8, {0xad, 0x56, 0xc0, 0x16, 0xd7, 0x6f, 0x71, 0x27}}
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namespace mozilla {
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namespace dom {
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using namespace mozilla::ipc;
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using namespace mozilla::dom::indexedDB;
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using namespace mozilla::dom::workers;
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namespace {
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const char kUUIDGeneratorContractId[] = "@mozilla.org/uuid-generator;1";
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const uint32_t kMaxFileDescriptorsPerMessage = 250;
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#ifdef OS_POSIX
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// Keep this in sync with other platforms.
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static_assert(FileDescriptorSet::MAX_DESCRIPTORS_PER_MESSAGE == 250,
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"MAX_DESCRIPTORS_PER_MESSAGE mismatch!");
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#endif
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StaticRefPtr<nsIUUIDGenerator> gUUIDGenerator;
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GeckoProcessType gProcessType = GeckoProcessType_Invalid;
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void
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CommonStartup()
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{
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MOZ_ASSERT(NS_IsMainThread());
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gProcessType = XRE_GetProcessType();
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MOZ_ASSERT(gProcessType != GeckoProcessType_Invalid);
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nsCOMPtr<nsIUUIDGenerator> uuidGen = do_GetService(kUUIDGeneratorContractId);
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MOZ_RELEASE_ASSERT(uuidGen);
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gUUIDGenerator = uuidGen;
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ClearOnShutdown(&gUUIDGenerator);
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}
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template <class ManagerType>
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struct ConcreteManagerTypeTraits;
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template <>
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struct ConcreteManagerTypeTraits<nsIContentChild>
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{
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typedef ContentChild Type;
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};
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template <>
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struct ConcreteManagerTypeTraits<PBackgroundChild>
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{
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typedef PBackgroundChild Type;
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};
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template <>
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struct ConcreteManagerTypeTraits<nsIContentParent>
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{
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typedef ContentParent Type;
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};
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template <>
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struct ConcreteManagerTypeTraits<PBackgroundParent>
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{
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typedef PBackgroundParent Type;
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};
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void
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AssertCorrectThreadForManager(nsIContentChild* aManager)
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{
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MOZ_ASSERT(NS_IsMainThread());
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}
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void
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AssertCorrectThreadForManager(nsIContentParent* aManager)
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{
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MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
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MOZ_ASSERT(NS_IsMainThread());
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}
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void
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AssertCorrectThreadForManager(PBackgroundChild* aManager)
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{
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#ifdef DEBUG
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if (aManager) {
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PBackgroundChild* backgroundChild = BackgroundChild::GetForCurrentThread();
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MOZ_ASSERT(backgroundChild);
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MOZ_ASSERT(backgroundChild == aManager);
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}
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#endif
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}
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void
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AssertCorrectThreadForManager(PBackgroundParent* aManager)
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{
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MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
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AssertIsOnBackgroundThread();
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}
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intptr_t
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ActorManagerProcessID(nsIContentParent* aManager)
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{
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AssertCorrectThreadForManager(aManager);
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MOZ_ASSERT(aManager);
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return reinterpret_cast<intptr_t>(aManager);
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}
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intptr_t
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ActorManagerProcessID(PBackgroundParent* aManager)
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{
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AssertCorrectThreadForManager(aManager);
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MOZ_ASSERT(aManager);
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return BackgroundParent::GetRawContentParentForComparison(aManager);
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}
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bool
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ActorManagerIsSameProcess(nsIContentParent* aManager)
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{
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AssertCorrectThreadForManager(aManager);
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MOZ_ASSERT(aManager);
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return false;
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}
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bool
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ActorManagerIsSameProcess(PBackgroundParent* aManager)
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{
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AssertCorrectThreadForManager(aManager);
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MOZ_ASSERT(aManager);
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return !BackgroundParent::IsOtherProcessActor(aManager);
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}
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bool
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EventTargetIsOnCurrentThread(nsIEventTarget* aEventTarget)
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{
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if (!aEventTarget) {
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return NS_IsMainThread();
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}
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bool current;
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MOZ_ALWAYS_SUCCEEDS(aEventTarget->IsOnCurrentThread(¤t));
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return current;
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}
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class CancelableRunnableWrapper final
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: public CancelableRunnable
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{
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nsCOMPtr<nsIRunnable> mRunnable;
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#ifdef DEBUG
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nsCOMPtr<nsIEventTarget> mDEBUGEventTarget;
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#endif
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public:
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CancelableRunnableWrapper(nsIRunnable* aRunnable,
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nsIEventTarget* aEventTarget)
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: mRunnable(aRunnable)
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#ifdef DEBUG
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, mDEBUGEventTarget(aEventTarget)
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#endif
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{
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MOZ_ASSERT(aRunnable);
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MOZ_ASSERT(aEventTarget);
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}
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NS_DECL_ISUPPORTS_INHERITED
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private:
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~CancelableRunnableWrapper()
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{ }
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NS_DECL_NSIRUNNABLE
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nsresult Cancel() override;
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};
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NS_IMPL_ISUPPORTS_INHERITED0(CancelableRunnableWrapper, CancelableRunnable)
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NS_IMETHODIMP
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CancelableRunnableWrapper::Run()
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{
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DebugOnly<bool> onTarget;
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MOZ_ASSERT(mDEBUGEventTarget);
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MOZ_ASSERT(NS_SUCCEEDED(mDEBUGEventTarget->IsOnCurrentThread(&onTarget)));
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MOZ_ASSERT(onTarget);
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nsCOMPtr<nsIRunnable> runnable;
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mRunnable.swap(runnable);
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if (runnable) {
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return runnable->Run();
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}
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return NS_OK;
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}
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nsresult
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CancelableRunnableWrapper::Cancel()
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{
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DebugOnly<bool> onTarget;
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MOZ_ASSERT(mDEBUGEventTarget);
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MOZ_ASSERT(NS_SUCCEEDED(mDEBUGEventTarget->IsOnCurrentThread(&onTarget)));
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MOZ_ASSERT(onTarget);
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if (NS_WARN_IF(!mRunnable)) {
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return NS_ERROR_UNEXPECTED;
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}
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Unused << Run();
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MOZ_ASSERT(!mRunnable);
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return NS_OK;
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}
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// Ensure that a nsCOMPtr/nsRefPtr is released on the target thread.
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template <template <class> class SmartPtr, class T>
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void
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ReleaseOnTarget(SmartPtr<T>& aDoomed, nsIEventTarget* aTarget)
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{
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MOZ_ASSERT(aDoomed);
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MOZ_ASSERT(!EventTargetIsOnCurrentThread(aTarget));
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T* doomedRaw;
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aDoomed.forget(&doomedRaw);
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auto* doomedSupports = static_cast<nsISupports*>(doomedRaw);
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nsCOMPtr<nsIRunnable> releaseRunnable =
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NewNonOwningRunnableMethod(doomedSupports, &nsISupports::Release);
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MOZ_ASSERT(releaseRunnable);
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if (aTarget) {
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// If we're targeting a non-main thread then make sure the runnable is
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// cancelable.
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releaseRunnable = new CancelableRunnableWrapper(releaseRunnable, aTarget);
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MOZ_ALWAYS_SUCCEEDS(aTarget->Dispatch(releaseRunnable,
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NS_DISPATCH_NORMAL));
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} else {
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MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(releaseRunnable));
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}
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}
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template <class ManagerType>
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void
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ConstructFileDescriptorSet(ManagerType* aManager,
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nsTArray<FileDescriptor>& aFDs,
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OptionalFileDescriptorSet& aOptionalFDSet)
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{
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typedef typename ConcreteManagerTypeTraits<ManagerType>::Type
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ConcreteManagerType;
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MOZ_ASSERT(aManager);
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if (aFDs.IsEmpty()) {
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aOptionalFDSet = void_t();
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return;
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}
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if (aFDs.Length() <= kMaxFileDescriptorsPerMessage) {
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aOptionalFDSet = nsTArray<FileDescriptor>();
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aOptionalFDSet.get_ArrayOfFileDescriptor().SwapElements(aFDs);
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return;
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}
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auto* concreteManager = static_cast<ConcreteManagerType*>(aManager);
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PFileDescriptorSetParent* fdSet =
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concreteManager->SendPFileDescriptorSetConstructor(aFDs[0]);
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if (!fdSet) {
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aOptionalFDSet = void_t();
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return;
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}
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for (uint32_t index = 1; index < aFDs.Length(); index++) {
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if (!fdSet->SendAddFileDescriptor(aFDs[index])) {
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aOptionalFDSet = void_t();
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return;
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}
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}
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aOptionalFDSet = fdSet;
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}
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void
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OptionalFileDescriptorSetToFDs(OptionalFileDescriptorSet& aOptionalSet,
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nsTArray<FileDescriptor>& aFDs)
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{
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MOZ_ASSERT(aFDs.IsEmpty());
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switch (aOptionalSet.type()) {
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case OptionalFileDescriptorSet::Tvoid_t:
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return;
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case OptionalFileDescriptorSet::TArrayOfFileDescriptor:
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aOptionalSet.get_ArrayOfFileDescriptor().SwapElements(aFDs);
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return;
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case OptionalFileDescriptorSet::TPFileDescriptorSetChild: {
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FileDescriptorSetChild* fdSetActor =
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static_cast<FileDescriptorSetChild*>(
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aOptionalSet.get_PFileDescriptorSetChild());
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MOZ_ASSERT(fdSetActor);
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fdSetActor->ForgetFileDescriptors(aFDs);
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MOZ_ASSERT(!aFDs.IsEmpty());
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PFileDescriptorSetChild::Send__delete__(fdSetActor);
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return;
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}
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default:
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MOZ_CRASH("Unknown type!");
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}
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MOZ_CRASH("Should never get here!");
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}
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class NS_NO_VTABLE IPrivateRemoteInputStream
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: public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(PRIVATE_REMOTE_INPUT_STREAM_IID)
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// This will return the underlying stream.
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virtual nsIInputStream*
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BlockAndGetInternalStream() = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(IPrivateRemoteInputStream,
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PRIVATE_REMOTE_INPUT_STREAM_IID)
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// This class exists to keep a blob alive at least as long as its internal
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// stream.
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class BlobInputStreamTether final
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: public nsIMultiplexInputStream
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, public nsISeekableStream
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, public nsIIPCSerializableInputStream
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{
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nsCOMPtr<nsIInputStream> mStream;
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RefPtr<BlobImpl> mBlobImpl;
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nsIMultiplexInputStream* mWeakMultiplexStream;
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nsISeekableStream* mWeakSeekableStream;
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nsIIPCSerializableInputStream* mWeakSerializableStream;
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_FORWARD_NSIINPUTSTREAM(mStream->)
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NS_FORWARD_SAFE_NSIMULTIPLEXINPUTSTREAM(mWeakMultiplexStream)
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NS_FORWARD_SAFE_NSISEEKABLESTREAM(mWeakSeekableStream)
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NS_FORWARD_SAFE_NSIIPCSERIALIZABLEINPUTSTREAM(mWeakSerializableStream)
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BlobInputStreamTether(nsIInputStream* aStream, BlobImpl* aBlobImpl)
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: mStream(aStream)
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, mBlobImpl(aBlobImpl)
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, mWeakMultiplexStream(nullptr)
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, mWeakSeekableStream(nullptr)
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, mWeakSerializableStream(nullptr)
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{
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MOZ_ASSERT(aStream);
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MOZ_ASSERT(aBlobImpl);
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nsCOMPtr<nsIMultiplexInputStream> multiplexStream =
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do_QueryInterface(aStream);
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if (multiplexStream) {
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MOZ_ASSERT(SameCOMIdentity(aStream, multiplexStream));
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mWeakMultiplexStream = multiplexStream;
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}
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nsCOMPtr<nsISeekableStream> seekableStream = do_QueryInterface(aStream);
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if (seekableStream) {
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MOZ_ASSERT(SameCOMIdentity(aStream, seekableStream));
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mWeakSeekableStream = seekableStream;
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}
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nsCOMPtr<nsIIPCSerializableInputStream> serializableStream =
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do_QueryInterface(aStream);
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if (serializableStream) {
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MOZ_ASSERT(SameCOMIdentity(aStream, serializableStream));
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mWeakSerializableStream = serializableStream;
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}
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}
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private:
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~BlobInputStreamTether()
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{ }
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};
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|
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NS_IMPL_ADDREF(BlobInputStreamTether)
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|
NS_IMPL_RELEASE(BlobInputStreamTether)
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|
|
NS_INTERFACE_MAP_BEGIN(BlobInputStreamTether)
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|
NS_INTERFACE_MAP_ENTRY(nsIInputStream)
|
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIMultiplexInputStream,
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mWeakMultiplexStream)
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NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsISeekableStream, mWeakSeekableStream)
|
|
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsIIPCSerializableInputStream,
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mWeakSerializableStream)
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|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIInputStream)
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NS_INTERFACE_MAP_END
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|
|
class RemoteInputStream final
|
|
: public nsIInputStream
|
|
, public nsISeekableStream
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|
, public nsIIPCSerializableInputStream
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|
, public IPrivateRemoteInputStream
|
|
{
|
|
Monitor mMonitor;
|
|
BlobChild* mActor;
|
|
nsCOMPtr<nsIInputStream> mStream;
|
|
RefPtr<BlobImpl> mBlobImpl;
|
|
nsCOMPtr<nsIEventTarget> mEventTarget;
|
|
nsISeekableStream* mWeakSeekableStream;
|
|
uint64_t mStart;
|
|
uint64_t mLength;
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|
|
|
public:
|
|
RemoteInputStream(BlobImpl* aBlobImpl,
|
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uint64_t aStart,
|
|
uint64_t aLength);
|
|
|
|
RemoteInputStream(BlobChild* aActor,
|
|
BlobImpl* aBlobImpl,
|
|
uint64_t aStart,
|
|
uint64_t aLength);
|
|
|
|
bool
|
|
IsOnOwningThread() const
|
|
{
|
|
return EventTargetIsOnCurrentThread(mEventTarget);
|
|
}
|
|
|
|
void
|
|
AssertIsOnOwningThread() const
|
|
{
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
bool
|
|
IsWorkerStream() const
|
|
{
|
|
return !!mActor;
|
|
}
|
|
|
|
void
|
|
SetStream(nsIInputStream* aStream);
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
|
|
private:
|
|
~RemoteInputStream();
|
|
|
|
nsresult
|
|
BlockAndWaitForStream();
|
|
|
|
void
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|
ReallyBlockAndWaitForStream();
|
|
|
|
bool
|
|
IsSeekableStream();
|
|
|
|
NS_DECL_NSIINPUTSTREAM
|
|
NS_DECL_NSISEEKABLESTREAM
|
|
NS_DECL_NSIIPCSERIALIZABLEINPUTSTREAM
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|
|
|
virtual nsIInputStream*
|
|
BlockAndGetInternalStream() override;
|
|
};
|
|
|
|
class InputStreamChild final
|
|
: public PBlobStreamChild
|
|
{
|
|
RefPtr<RemoteInputStream> mRemoteStream;
|
|
|
|
public:
|
|
explicit
|
|
InputStreamChild(RemoteInputStream* aRemoteStream)
|
|
: mRemoteStream(aRemoteStream)
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|
{
|
|
MOZ_ASSERT(aRemoteStream);
|
|
aRemoteStream->AssertIsOnOwningThread();
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|
}
|
|
|
|
InputStreamChild()
|
|
{ }
|
|
|
|
~InputStreamChild()
|
|
{ }
|
|
|
|
private:
|
|
// This method is only called by the IPDL message machinery.
|
|
virtual bool
|
|
Recv__delete__(const InputStreamParams& aParams,
|
|
const OptionalFileDescriptorSet& aFDs) override;
|
|
};
|
|
|
|
class InputStreamParent final
|
|
: public PBlobStreamParent
|
|
{
|
|
typedef mozilla::ipc::InputStreamParams InputStreamParams;
|
|
typedef mozilla::ipc::OptionalFileDescriptorSet OptionalFileDescriptorSet;
|
|
|
|
bool* mSyncLoopGuard;
|
|
InputStreamParams* mParams;
|
|
OptionalFileDescriptorSet* mFDs;
|
|
|
|
#ifdef DEBUG
|
|
PRThread* mOwningThread;
|
|
#endif
|
|
|
|
public:
|
|
InputStreamParent()
|
|
: mSyncLoopGuard(nullptr)
|
|
, mParams(nullptr)
|
|
, mFDs(nullptr)
|
|
{
|
|
#ifdef DEBUG
|
|
mOwningThread = PR_GetCurrentThread();
|
|
#endif
|
|
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_CTOR(InputStreamParent);
|
|
}
|
|
|
|
InputStreamParent(bool* aSyncLoopGuard,
|
|
InputStreamParams* aParams,
|
|
OptionalFileDescriptorSet* aFDs)
|
|
: mSyncLoopGuard(aSyncLoopGuard)
|
|
, mParams(aParams)
|
|
, mFDs(aFDs)
|
|
{
|
|
#ifdef DEBUG
|
|
mOwningThread = PR_GetCurrentThread();
|
|
#endif
|
|
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aSyncLoopGuard);
|
|
MOZ_ASSERT(!*aSyncLoopGuard);
|
|
MOZ_ASSERT(aParams);
|
|
MOZ_ASSERT(aFDs);
|
|
|
|
MOZ_COUNT_CTOR(InputStreamParent);
|
|
}
|
|
|
|
~InputStreamParent()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_DTOR(InputStreamParent);
|
|
}
|
|
|
|
void
|
|
AssertIsOnOwningThread() const
|
|
{
|
|
#ifdef DEBUG
|
|
MOZ_ASSERT(PR_GetCurrentThread() == mOwningThread);
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
Destroy(const InputStreamParams& aParams,
|
|
const OptionalFileDescriptorSet& aFDs)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mSyncLoopGuard) {
|
|
MOZ_ASSERT(!*mSyncLoopGuard);
|
|
|
|
*mSyncLoopGuard = true;
|
|
*mParams = aParams;
|
|
*mFDs = aFDs;
|
|
|
|
// We're not a live actor so manage the memory ourselves.
|
|
delete this;
|
|
return true;
|
|
}
|
|
|
|
// This will be destroyed by BlobParent::DeallocPBlobStreamParent.
|
|
return PBlobStreamParent::Send__delete__(this, aParams, aFDs);
|
|
}
|
|
|
|
private:
|
|
// This method is only called by the IPDL message machinery.
|
|
virtual void
|
|
ActorDestroy(ActorDestroyReason aWhy) override
|
|
{
|
|
// Nothing needs to be done here.
|
|
}
|
|
};
|
|
|
|
struct MOZ_STACK_CLASS CreateBlobImplMetadata final
|
|
{
|
|
nsString mContentType;
|
|
nsString mName;
|
|
uint64_t mLength;
|
|
int64_t mLastModifiedDate;
|
|
bool mHasRecursed;
|
|
const bool mIsSameProcessActor;
|
|
|
|
explicit CreateBlobImplMetadata(bool aIsSameProcessActor)
|
|
: mLength(0)
|
|
, mLastModifiedDate(0)
|
|
, mHasRecursed(false)
|
|
, mIsSameProcessActor(aIsSameProcessActor)
|
|
{
|
|
MOZ_COUNT_CTOR(CreateBlobImplMetadata);
|
|
|
|
mName.SetIsVoid(true);
|
|
}
|
|
|
|
~CreateBlobImplMetadata()
|
|
{
|
|
MOZ_COUNT_DTOR(CreateBlobImplMetadata);
|
|
}
|
|
|
|
bool
|
|
IsFile() const
|
|
{
|
|
return !mName.IsVoid();
|
|
}
|
|
};
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImpl(const nsID& aKnownBlobIDData,
|
|
const CreateBlobImplMetadata& aMetadata)
|
|
{
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
MOZ_ASSERT(aMetadata.mHasRecursed);
|
|
|
|
RefPtr<BlobImpl> blobImpl = BlobParent::GetBlobImplForID(aKnownBlobIDData);
|
|
if (NS_WARN_IF(!blobImpl)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(blobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImpl(const nsTArray<uint8_t>& aMemoryData,
|
|
const CreateBlobImplMetadata& aMetadata)
|
|
{
|
|
static_assert(sizeof(aMemoryData.Length()) <= sizeof(size_t),
|
|
"String length won't fit in size_t!");
|
|
static_assert(sizeof(size_t) <= sizeof(uint64_t),
|
|
"size_t won't fit in uint64_t!");
|
|
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
|
|
if (auto length = static_cast<size_t>(aMemoryData.Length())) {
|
|
static MOZ_CONSTEXPR_VAR size_t elementSizeMultiplier =
|
|
sizeof(aMemoryData[0]) / sizeof(char);
|
|
|
|
if (!aMetadata.mHasRecursed &&
|
|
NS_WARN_IF(aMetadata.mLength != uint64_t(length))) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
void* buffer = malloc(length * elementSizeMultiplier);
|
|
if (NS_WARN_IF(!buffer)) {
|
|
return nullptr;
|
|
}
|
|
|
|
memcpy(buffer, aMemoryData.Elements(), length * elementSizeMultiplier);
|
|
|
|
if (!aMetadata.mHasRecursed && aMetadata.IsFile()) {
|
|
blobImpl =
|
|
new BlobImplMemory(buffer,
|
|
uint64_t(length),
|
|
aMetadata.mName,
|
|
aMetadata.mContentType,
|
|
aMetadata.mLastModifiedDate);
|
|
} else {
|
|
blobImpl =
|
|
new BlobImplMemory(buffer, uint64_t(length), aMetadata.mContentType);
|
|
}
|
|
} else if (!aMetadata.mHasRecursed && aMetadata.IsFile()) {
|
|
blobImpl =
|
|
new EmptyBlobImpl(aMetadata.mName,
|
|
aMetadata.mContentType,
|
|
aMetadata.mLastModifiedDate);
|
|
} else {
|
|
blobImpl = new EmptyBlobImpl(aMetadata.mContentType);
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(blobImpl->SetMutable(false));
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImpl(const nsTArray<BlobData>& aBlobData,
|
|
CreateBlobImplMetadata& aMetadata);
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImplFromBlobData(const BlobData& aBlobData,
|
|
CreateBlobImplMetadata& aMetadata)
|
|
{
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
|
|
switch (aBlobData.type()) {
|
|
case BlobData::TnsID: {
|
|
blobImpl = CreateBlobImpl(aBlobData.get_nsID(), aMetadata);
|
|
break;
|
|
}
|
|
|
|
case BlobData::TArrayOfuint8_t: {
|
|
blobImpl = CreateBlobImpl(aBlobData.get_ArrayOfuint8_t(), aMetadata);
|
|
break;
|
|
}
|
|
|
|
case BlobData::TArrayOfBlobData: {
|
|
blobImpl = CreateBlobImpl(aBlobData.get_ArrayOfBlobData(), aMetadata);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown params!");
|
|
}
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImpl(const nsTArray<BlobData>& aBlobDatas,
|
|
CreateBlobImplMetadata& aMetadata)
|
|
{
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
// Special case for a multipart blob with only one part.
|
|
if (aBlobDatas.Length() == 1) {
|
|
const BlobData& blobData = aBlobDatas[0];
|
|
|
|
RefPtr<BlobImpl> blobImpl =
|
|
CreateBlobImplFromBlobData(blobData, aMetadata);
|
|
if (NS_WARN_IF(!blobImpl)) {
|
|
return nullptr;
|
|
}
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(blobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
FallibleTArray<RefPtr<BlobImpl>> fallibleBlobImpls;
|
|
if (NS_WARN_IF(!fallibleBlobImpls.SetLength(aBlobDatas.Length(), fallible))) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsTArray<RefPtr<BlobImpl>> blobImpls;
|
|
fallibleBlobImpls.SwapElements(blobImpls);
|
|
|
|
const bool hasRecursed = aMetadata.mHasRecursed;
|
|
aMetadata.mHasRecursed = true;
|
|
|
|
for (uint32_t count = aBlobDatas.Length(), index = 0;
|
|
index < count;
|
|
index++) {
|
|
const BlobData& blobData = aBlobDatas[index];
|
|
RefPtr<BlobImpl>& blobImpl = blobImpls[index];
|
|
|
|
blobImpl = CreateBlobImplFromBlobData(blobData, aMetadata);
|
|
if (NS_WARN_IF(!blobImpl)) {
|
|
return nullptr;
|
|
}
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(blobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
}
|
|
|
|
ErrorResult rv;
|
|
RefPtr<BlobImpl> blobImpl;
|
|
if (!hasRecursed && aMetadata.IsFile()) {
|
|
blobImpl = MultipartBlobImpl::Create(blobImpls, aMetadata.mName,
|
|
aMetadata.mContentType, rv);
|
|
} else {
|
|
blobImpl = MultipartBlobImpl::Create(blobImpls, aMetadata.mContentType, rv);
|
|
}
|
|
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(blobImpl->SetMutable(false));
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
CreateBlobImpl(const ParentBlobConstructorParams& aParams,
|
|
const BlobData& aBlobData,
|
|
bool aIsSameProcessActor)
|
|
{
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
MOZ_ASSERT(aParams.blobParams().type() ==
|
|
AnyBlobConstructorParams::TNormalBlobConstructorParams ||
|
|
aParams.blobParams().type() ==
|
|
AnyBlobConstructorParams::TFileBlobConstructorParams);
|
|
|
|
CreateBlobImplMetadata metadata(aIsSameProcessActor);
|
|
|
|
if (aParams.blobParams().type() ==
|
|
AnyBlobConstructorParams::TNormalBlobConstructorParams) {
|
|
const NormalBlobConstructorParams& params =
|
|
aParams.blobParams().get_NormalBlobConstructorParams();
|
|
|
|
if (NS_WARN_IF(params.length() == UINT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
metadata.mContentType = params.contentType();
|
|
metadata.mLength = params.length();
|
|
} else {
|
|
const FileBlobConstructorParams& params =
|
|
aParams.blobParams().get_FileBlobConstructorParams();
|
|
|
|
if (NS_WARN_IF(params.length() == UINT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
if (NS_WARN_IF(params.modDate() == INT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
metadata.mContentType = params.contentType();
|
|
metadata.mName = params.name();
|
|
metadata.mLength = params.length();
|
|
metadata.mLastModifiedDate = params.modDate();
|
|
}
|
|
|
|
RefPtr<BlobImpl> blobImpl =
|
|
CreateBlobImplFromBlobData(aBlobData, metadata);
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
void
|
|
BlobDataFromBlobImpl(BlobImpl* aBlobImpl, BlobData& aBlobData)
|
|
{
|
|
MOZ_ASSERT(gProcessType != GeckoProcessType_Default);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
const nsTArray<RefPtr<BlobImpl>>* subBlobs = aBlobImpl->GetSubBlobImpls();
|
|
|
|
if (subBlobs) {
|
|
MOZ_ASSERT(subBlobs->Length());
|
|
|
|
aBlobData = nsTArray<BlobData>();
|
|
|
|
nsTArray<BlobData>& subBlobDatas = aBlobData.get_ArrayOfBlobData();
|
|
subBlobDatas.SetLength(subBlobs->Length());
|
|
|
|
for (uint32_t count = subBlobs->Length(), index = 0;
|
|
index < count;
|
|
index++) {
|
|
BlobDataFromBlobImpl(subBlobs->ElementAt(index), subBlobDatas[index]);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryInterface(aBlobImpl);
|
|
if (remoteBlob) {
|
|
BlobChild* actor = remoteBlob->GetBlobChild();
|
|
MOZ_ASSERT(actor);
|
|
|
|
aBlobData = actor->ParentID();
|
|
return;
|
|
}
|
|
|
|
ErrorResult rv;
|
|
nsCOMPtr<nsIInputStream> inputStream;
|
|
aBlobImpl->GetInternalStream(getter_AddRefs(inputStream), rv);
|
|
MOZ_ALWAYS_TRUE(!rv.Failed());
|
|
|
|
DebugOnly<bool> isNonBlocking;
|
|
MOZ_ASSERT(NS_SUCCEEDED(inputStream->IsNonBlocking(&isNonBlocking)));
|
|
MOZ_ASSERT(isNonBlocking);
|
|
|
|
uint64_t available;
|
|
MOZ_ALWAYS_SUCCEEDS(inputStream->Available(&available));
|
|
|
|
MOZ_ASSERT(available <= uint64_t(UINT32_MAX));
|
|
|
|
aBlobData = nsTArray<uint8_t>();
|
|
|
|
nsTArray<uint8_t>& blobData = aBlobData.get_ArrayOfuint8_t();
|
|
|
|
blobData.SetLength(size_t(available));
|
|
|
|
uint32_t readCount;
|
|
MOZ_ALWAYS_SUCCEEDS(
|
|
inputStream->Read(reinterpret_cast<char*>(blobData.Elements()),
|
|
uint32_t(available),
|
|
&readCount));
|
|
}
|
|
|
|
RemoteInputStream::RemoteInputStream(BlobImpl* aBlobImpl,
|
|
uint64_t aStart,
|
|
uint64_t aLength)
|
|
: mMonitor("RemoteInputStream.mMonitor")
|
|
, mActor(nullptr)
|
|
, mBlobImpl(aBlobImpl)
|
|
, mWeakSeekableStream(nullptr)
|
|
, mStart(aStart)
|
|
, mLength(aLength)
|
|
{
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
mEventTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mEventTarget);
|
|
}
|
|
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
RemoteInputStream::RemoteInputStream(BlobChild* aActor,
|
|
BlobImpl* aBlobImpl,
|
|
uint64_t aStart,
|
|
uint64_t aLength)
|
|
: mMonitor("RemoteInputStream.mMonitor")
|
|
, mActor(aActor)
|
|
, mBlobImpl(aBlobImpl)
|
|
, mEventTarget(NS_GetCurrentThread())
|
|
, mWeakSeekableStream(nullptr)
|
|
, mStart(aStart)
|
|
, mLength(aLength)
|
|
{
|
|
MOZ_ASSERT(!NS_IsMainThread());
|
|
MOZ_ASSERT(aActor);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
RemoteInputStream::~RemoteInputStream()
|
|
{
|
|
if (!IsOnOwningThread()) {
|
|
mStream = nullptr;
|
|
mWeakSeekableStream = nullptr;
|
|
|
|
if (mBlobImpl) {
|
|
ReleaseOnTarget(mBlobImpl, mEventTarget);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
RemoteInputStream::SetStream(nsIInputStream* aStream)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aStream);
|
|
|
|
nsCOMPtr<nsIInputStream> stream = aStream;
|
|
nsCOMPtr<nsISeekableStream> seekableStream = do_QueryInterface(aStream);
|
|
|
|
MOZ_ASSERT_IF(seekableStream, SameCOMIdentity(aStream, seekableStream));
|
|
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
MOZ_ASSERT_IF(mStream, IsWorkerStream());
|
|
|
|
if (!mStream) {
|
|
MOZ_ASSERT(!mWeakSeekableStream);
|
|
|
|
mStream.swap(stream);
|
|
mWeakSeekableStream = seekableStream;
|
|
|
|
mMonitor.Notify();
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
RemoteInputStream::BlockAndWaitForStream()
|
|
{
|
|
if (IsOnOwningThread()) {
|
|
if (NS_IsMainThread()) {
|
|
NS_WARNING("Blocking the main thread is not supported!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
MOZ_ASSERT(IsWorkerStream());
|
|
|
|
InputStreamParams params;
|
|
OptionalFileDescriptorSet optionalFDs;
|
|
|
|
mActor->SendBlobStreamSync(mStart, mLength, ¶ms, &optionalFDs);
|
|
|
|
nsTArray<FileDescriptor> fds;
|
|
OptionalFileDescriptorSetToFDs(optionalFDs, fds);
|
|
|
|
nsCOMPtr<nsIInputStream> stream = DeserializeInputStream(params, fds);
|
|
MOZ_ASSERT(stream);
|
|
|
|
SetStream(stream);
|
|
return NS_OK;
|
|
}
|
|
|
|
ReallyBlockAndWaitForStream();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
RemoteInputStream::ReallyBlockAndWaitForStream()
|
|
{
|
|
MOZ_ASSERT(!IsOnOwningThread());
|
|
|
|
DebugOnly<bool> waited;
|
|
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
waited = !mStream;
|
|
|
|
while (!mStream) {
|
|
mMonitor.Wait();
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(mStream);
|
|
|
|
#ifdef DEBUG
|
|
if (waited && mWeakSeekableStream) {
|
|
int64_t position;
|
|
if (NS_SUCCEEDED(mWeakSeekableStream->Tell(&position))) {
|
|
MOZ_ASSERT(!position, "Stream not starting at 0!");
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
RemoteInputStream::IsSeekableStream()
|
|
{
|
|
if (IsOnOwningThread()) {
|
|
if (!mStream) {
|
|
NS_WARNING("Don't know if this stream is seekable yet!");
|
|
return true;
|
|
}
|
|
} else {
|
|
ReallyBlockAndWaitForStream();
|
|
}
|
|
|
|
return !!mWeakSeekableStream;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(RemoteInputStream)
|
|
NS_IMPL_RELEASE(RemoteInputStream)
|
|
|
|
NS_INTERFACE_MAP_BEGIN(RemoteInputStream)
|
|
NS_INTERFACE_MAP_ENTRY(nsIInputStream)
|
|
NS_INTERFACE_MAP_ENTRY(nsIIPCSerializableInputStream)
|
|
NS_INTERFACE_MAP_ENTRY_CONDITIONAL(nsISeekableStream, IsSeekableStream())
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIInputStream)
|
|
NS_INTERFACE_MAP_ENTRY(IPrivateRemoteInputStream)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::Close()
|
|
{
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
mBlobImpl.swap(blobImpl);
|
|
|
|
rv = mStream->Close();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::Available(uint64_t* aAvailable)
|
|
{
|
|
if (!IsOnOwningThread()) {
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mStream->Available(aAvailable);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (NS_IsMainThread()) {
|
|
NS_WARNING("Someone is trying to do main-thread I/O...");
|
|
}
|
|
#endif
|
|
|
|
nsresult rv;
|
|
|
|
// See if we already have our real stream.
|
|
nsCOMPtr<nsIInputStream> inputStream;
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
inputStream = mStream;
|
|
}
|
|
|
|
// If we do then just call through.
|
|
if (inputStream) {
|
|
rv = inputStream->Available(aAvailable);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// If the stream is already closed then we can't do anything.
|
|
if (!mBlobImpl) {
|
|
return NS_BASE_STREAM_CLOSED;
|
|
}
|
|
|
|
// Otherwise fake it...
|
|
NS_WARNING("Available() called before real stream has been delivered, "
|
|
"guessing the amount of data available!");
|
|
|
|
ErrorResult error;
|
|
*aAvailable = mBlobImpl->GetSize(error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::Read(char* aBuffer, uint32_t aCount, uint32_t* aResult)
|
|
{
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mStream->Read(aBuffer, aCount, aResult);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::ReadSegments(nsWriteSegmentFun aWriter,
|
|
void* aClosure,
|
|
uint32_t aCount,
|
|
uint32_t* aResult)
|
|
{
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mStream->ReadSegments(aWriter, aClosure, aCount, aResult);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::IsNonBlocking(bool* aNonBlocking)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aNonBlocking);
|
|
|
|
*aNonBlocking = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::Seek(int32_t aWhence, int64_t aOffset)
|
|
{
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!mWeakSeekableStream) {
|
|
NS_WARNING("Underlying blob stream is not seekable!");
|
|
return NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
rv = mWeakSeekableStream->Seek(aWhence, aOffset);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::Tell(int64_t* aResult)
|
|
{
|
|
// We can cheat here and assume that we're going to start at 0 if we don't yet
|
|
// have our stream. Though, really, this should abort since most input streams
|
|
// could block here.
|
|
if (IsOnOwningThread() && !mStream) {
|
|
*aResult = 0;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!mWeakSeekableStream) {
|
|
NS_WARNING("Underlying blob stream is not seekable!");
|
|
return NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
rv = mWeakSeekableStream->Tell(aResult);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
RemoteInputStream::SetEOF()
|
|
{
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!mWeakSeekableStream) {
|
|
NS_WARNING("Underlying blob stream is not seekable!");
|
|
return NS_ERROR_NO_INTERFACE;
|
|
}
|
|
|
|
rv = mWeakSeekableStream->SetEOF();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
RemoteInputStream::Serialize(InputStreamParams& aParams,
|
|
FileDescriptorArray& /* aFDs */)
|
|
{
|
|
MOZ_RELEASE_ASSERT(mBlobImpl);
|
|
|
|
nsCOMPtr<nsIRemoteBlob> remote = do_QueryInterface(mBlobImpl);
|
|
MOZ_ASSERT(remote);
|
|
|
|
BlobChild* actor = remote->GetBlobChild();
|
|
MOZ_ASSERT(actor);
|
|
|
|
aParams = RemoteInputStreamParams(actor->ParentID());
|
|
}
|
|
|
|
bool
|
|
RemoteInputStream::Deserialize(const InputStreamParams& /* aParams */,
|
|
const FileDescriptorArray& /* aFDs */)
|
|
{
|
|
// See InputStreamUtils.cpp to see how deserialization of a
|
|
// RemoteInputStream is special-cased.
|
|
MOZ_CRASH("RemoteInputStream should never be deserialized");
|
|
}
|
|
|
|
nsIInputStream*
|
|
RemoteInputStream::BlockAndGetInternalStream()
|
|
{
|
|
MOZ_ASSERT(!IsOnOwningThread());
|
|
|
|
nsresult rv = BlockAndWaitForStream();
|
|
NS_ENSURE_SUCCESS(rv, nullptr);
|
|
|
|
return mStream;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
StaticAutoPtr<BlobParent::IDTable> BlobParent::sIDTable;
|
|
StaticAutoPtr<Mutex> BlobParent::sIDTableMutex;
|
|
|
|
/*******************************************************************************
|
|
* BlobParent::IDTableEntry Declaration
|
|
******************************************************************************/
|
|
|
|
class BlobParent::IDTableEntry final
|
|
{
|
|
const nsID mID;
|
|
const intptr_t mProcessID;
|
|
const RefPtr<BlobImpl> mBlobImpl;
|
|
|
|
public:
|
|
static already_AddRefed<IDTableEntry>
|
|
Create(const nsID& aID, intptr_t aProcessID, BlobImpl* aBlobImpl)
|
|
{
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
return GetOrCreateInternal(aID,
|
|
aProcessID,
|
|
aBlobImpl,
|
|
/* aMayCreate */ true,
|
|
/* aMayGet */ false,
|
|
/* aIgnoreProcessID */ false);
|
|
}
|
|
|
|
static already_AddRefed<IDTableEntry>
|
|
Get(const nsID& aID, intptr_t aProcessID)
|
|
{
|
|
return GetOrCreateInternal(aID,
|
|
aProcessID,
|
|
nullptr,
|
|
/* aMayCreate */ false,
|
|
/* aMayGet */ true,
|
|
/* aIgnoreProcessID */ false);
|
|
}
|
|
|
|
static already_AddRefed<IDTableEntry>
|
|
Get(const nsID& aID)
|
|
{
|
|
return GetOrCreateInternal(aID,
|
|
0,
|
|
nullptr,
|
|
/* aMayCreate */ false,
|
|
/* aMayGet */ true,
|
|
/* aIgnoreProcessID */ true);
|
|
}
|
|
|
|
static already_AddRefed<IDTableEntry>
|
|
GetOrCreate(const nsID& aID, intptr_t aProcessID, BlobImpl* aBlobImpl)
|
|
{
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
return GetOrCreateInternal(aID,
|
|
aProcessID,
|
|
aBlobImpl,
|
|
/* aMayCreate */ true,
|
|
/* aMayGet */ true,
|
|
/* aIgnoreProcessID */ false);
|
|
}
|
|
|
|
const nsID&
|
|
ID() const
|
|
{
|
|
return mID;
|
|
}
|
|
|
|
intptr_t
|
|
ProcessID() const
|
|
{
|
|
return mProcessID;
|
|
}
|
|
|
|
BlobImpl*
|
|
GetBlobImpl() const
|
|
{
|
|
return mBlobImpl;
|
|
}
|
|
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(IDTableEntry)
|
|
|
|
private:
|
|
IDTableEntry(const nsID& aID, intptr_t aProcessID, BlobImpl* aBlobImpl);
|
|
~IDTableEntry();
|
|
|
|
static already_AddRefed<IDTableEntry>
|
|
GetOrCreateInternal(const nsID& aID,
|
|
intptr_t aProcessID,
|
|
BlobImpl* aBlobImpl,
|
|
bool aMayCreate,
|
|
bool aMayGet,
|
|
bool aIgnoreProcessID);
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* BlobParent::OpenStreamRunnable Declaration
|
|
******************************************************************************/
|
|
|
|
// Each instance of this class will be dispatched to the network stream thread
|
|
// pool to run the first time where it will open the file input stream. It will
|
|
// then dispatch itself back to the owning thread to send the child process its
|
|
// response (assuming that the child has not crashed). The runnable will then
|
|
// dispatch itself to the thread pool again in order to close the file input
|
|
// stream.
|
|
class BlobParent::OpenStreamRunnable final
|
|
: public Runnable
|
|
{
|
|
friend class nsRevocableEventPtr<OpenStreamRunnable>;
|
|
|
|
// Only safe to access these pointers if mRevoked is false!
|
|
BlobParent* mBlobActor;
|
|
InputStreamParent* mStreamActor;
|
|
|
|
nsCOMPtr<nsIInputStream> mStream;
|
|
nsCOMPtr<nsIIPCSerializableInputStream> mSerializable;
|
|
nsCOMPtr<nsIEventTarget> mActorTarget;
|
|
nsCOMPtr<nsIThread> mIOTarget;
|
|
|
|
bool mRevoked;
|
|
bool mClosing;
|
|
|
|
public:
|
|
OpenStreamRunnable(BlobParent* aBlobActor,
|
|
InputStreamParent* aStreamActor,
|
|
nsIInputStream* aStream,
|
|
nsIIPCSerializableInputStream* aSerializable,
|
|
nsIThread* aIOTarget)
|
|
: mBlobActor(aBlobActor)
|
|
, mStreamActor(aStreamActor)
|
|
, mStream(aStream)
|
|
, mSerializable(aSerializable)
|
|
, mIOTarget(aIOTarget)
|
|
, mRevoked(false)
|
|
, mClosing(false)
|
|
{
|
|
MOZ_ASSERT(aBlobActor);
|
|
aBlobActor->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aStreamActor);
|
|
MOZ_ASSERT(aStream);
|
|
// aSerializable may be null.
|
|
MOZ_ASSERT(aIOTarget);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
AssertIsOnBackgroundThread();
|
|
|
|
mActorTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mActorTarget);
|
|
}
|
|
|
|
AssertIsOnOwningThread();
|
|
}
|
|
|
|
nsresult
|
|
Dispatch()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mIOTarget);
|
|
|
|
nsresult rv = mIOTarget->Dispatch(this, NS_DISPATCH_NORMAL);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
private:
|
|
~OpenStreamRunnable()
|
|
{ }
|
|
|
|
bool
|
|
IsOnOwningThread() const
|
|
{
|
|
return EventTargetIsOnCurrentThread(mActorTarget);
|
|
}
|
|
|
|
void
|
|
AssertIsOnOwningThread() const
|
|
{
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
void
|
|
Revoke()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
#ifdef DEBUG
|
|
mBlobActor = nullptr;
|
|
mStreamActor = nullptr;
|
|
#endif
|
|
mRevoked = true;
|
|
}
|
|
|
|
nsresult
|
|
OpenStream()
|
|
{
|
|
MOZ_ASSERT(!IsOnOwningThread());
|
|
MOZ_ASSERT(mStream);
|
|
|
|
if (!mSerializable) {
|
|
nsCOMPtr<IPrivateRemoteInputStream> remoteStream =
|
|
do_QueryInterface(mStream);
|
|
MOZ_ASSERT(remoteStream, "Must QI to IPrivateRemoteInputStream here!");
|
|
|
|
nsCOMPtr<nsIInputStream> realStream =
|
|
remoteStream->BlockAndGetInternalStream();
|
|
NS_ENSURE_TRUE(realStream, NS_ERROR_FAILURE);
|
|
|
|
mSerializable = do_QueryInterface(realStream);
|
|
if (!mSerializable) {
|
|
MOZ_ASSERT(false, "Must be serializable!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mStream.swap(realStream);
|
|
}
|
|
|
|
// To force the stream open we call Available(). We don't actually care
|
|
// how much data is available.
|
|
uint64_t available;
|
|
if (NS_FAILED(mStream->Available(&available))) {
|
|
NS_WARNING("Available failed on this stream!");
|
|
}
|
|
|
|
if (mActorTarget) {
|
|
nsresult rv = mActorTarget->Dispatch(this, NS_DISPATCH_NORMAL);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
} else {
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(this));
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
CloseStream()
|
|
{
|
|
MOZ_ASSERT(!IsOnOwningThread());
|
|
MOZ_ASSERT(mStream);
|
|
|
|
// Going to always release here.
|
|
nsCOMPtr<nsIInputStream> stream;
|
|
mStream.swap(stream);
|
|
|
|
nsCOMPtr<nsIThread> ioTarget;
|
|
mIOTarget.swap(ioTarget);
|
|
|
|
NS_WARN_IF_FALSE(NS_SUCCEEDED(stream->Close()), "Failed to close stream!");
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(NewRunnableMethod(ioTarget, &nsIThread::Shutdown)));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
SendResponse()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mStream);
|
|
MOZ_ASSERT(mSerializable);
|
|
MOZ_ASSERT(mIOTarget);
|
|
MOZ_ASSERT(!mClosing);
|
|
|
|
nsCOMPtr<nsIIPCSerializableInputStream> serializable;
|
|
mSerializable.swap(serializable);
|
|
|
|
if (mRevoked) {
|
|
MOZ_ASSERT(!mBlobActor);
|
|
MOZ_ASSERT(!mStreamActor);
|
|
}
|
|
else {
|
|
MOZ_ASSERT(mBlobActor);
|
|
MOZ_ASSERT(mBlobActor->HasManager());
|
|
MOZ_ASSERT(mStreamActor);
|
|
|
|
InputStreamParams params;
|
|
nsTArray<FileDescriptor> fds;
|
|
serializable->Serialize(params, fds);
|
|
|
|
MOZ_ASSERT(params.type() != InputStreamParams::T__None);
|
|
|
|
OptionalFileDescriptorSet optionalFDSet;
|
|
if (nsIContentParent* contentManager = mBlobActor->GetContentManager()) {
|
|
ConstructFileDescriptorSet(contentManager, fds, optionalFDSet);
|
|
} else {
|
|
ConstructFileDescriptorSet(mBlobActor->GetBackgroundManager(),
|
|
fds,
|
|
optionalFDSet);
|
|
}
|
|
|
|
mStreamActor->Destroy(params, optionalFDSet);
|
|
|
|
mBlobActor->NoteRunnableCompleted(this);
|
|
|
|
#ifdef DEBUG
|
|
mBlobActor = nullptr;
|
|
mStreamActor = nullptr;
|
|
#endif
|
|
}
|
|
|
|
// If our luck is *really* bad then it is possible for the CloseStream() and
|
|
// nsIThread::Shutdown() functions to run before the Dispatch() call here
|
|
// finishes... Keep the thread alive until this method returns.
|
|
nsCOMPtr<nsIThread> kungFuDeathGrip = mIOTarget;
|
|
|
|
mClosing = true;
|
|
|
|
nsresult rv = mIOTarget->Dispatch(this, NS_DISPATCH_NORMAL);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHOD
|
|
Run() override
|
|
{
|
|
MOZ_ASSERT(mIOTarget);
|
|
|
|
if (IsOnOwningThread()) {
|
|
return SendResponse();
|
|
}
|
|
|
|
if (!mClosing) {
|
|
return OpenStream();
|
|
}
|
|
|
|
return CloseStream();
|
|
}
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(BlobParent::OpenStreamRunnable, Runnable)
|
|
|
|
/*******************************************************************************
|
|
* BlobChild::RemoteBlobImpl Declaration
|
|
******************************************************************************/
|
|
|
|
class BlobChild::RemoteBlobImpl
|
|
: public BlobImplBase
|
|
, public nsIRemoteBlob
|
|
{
|
|
protected:
|
|
class CreateStreamHelper;
|
|
|
|
BlobChild* mActor;
|
|
nsCOMPtr<nsIEventTarget> mActorTarget;
|
|
|
|
// We use this pointer to keep a live a blobImpl coming from a different
|
|
// process until this one is fully created. We set it to null when
|
|
// SendCreatedFromKnownBlob() is received. This is used only with KnownBlob
|
|
// params in the CTOR of a IPC BlobImpl.
|
|
RefPtr<BlobImpl> mDifferentProcessBlobImpl;
|
|
|
|
RefPtr<BlobImpl> mSameProcessBlobImpl;
|
|
|
|
const bool mIsSlice;
|
|
|
|
public:
|
|
// For File.
|
|
RemoteBlobImpl(BlobChild* aActor,
|
|
BlobImpl* aRemoteBlobImpl,
|
|
const nsAString& aName,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
int64_t aModDate,
|
|
bool aIsSameProcessBlob);
|
|
|
|
// For Blob.
|
|
RemoteBlobImpl(BlobChild* aActor,
|
|
BlobImpl* aRemoteBlobImpl,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
bool aIsSameProcessBlob);
|
|
|
|
// For mystery blobs.
|
|
explicit
|
|
RemoteBlobImpl(BlobChild* aActor);
|
|
|
|
void
|
|
NoteDyingActor();
|
|
|
|
BlobChild*
|
|
GetActor() const
|
|
{
|
|
MOZ_ASSERT(ActorEventTargetIsOnCurrentThread());
|
|
|
|
return mActor;
|
|
}
|
|
|
|
nsIEventTarget*
|
|
GetActorEventTarget() const
|
|
{
|
|
return mActorTarget;
|
|
}
|
|
|
|
bool
|
|
ActorEventTargetIsOnCurrentThread() const
|
|
{
|
|
return EventTargetIsOnCurrentThread(BaseRemoteBlobImpl()->mActorTarget);
|
|
}
|
|
|
|
bool
|
|
IsSlice() const
|
|
{
|
|
return mIsSlice;
|
|
}
|
|
|
|
RemoteBlobSliceImpl*
|
|
AsSlice() const;
|
|
|
|
RemoteBlobImpl*
|
|
BaseRemoteBlobImpl() const;
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
virtual void
|
|
GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) const override;
|
|
|
|
virtual already_AddRefed<BlobImpl>
|
|
CreateSlice(uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv) override;
|
|
|
|
virtual void
|
|
GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv) override;
|
|
|
|
virtual int64_t
|
|
GetFileId() override;
|
|
|
|
virtual int64_t
|
|
GetLastModified(ErrorResult& aRv) override;
|
|
|
|
virtual void
|
|
SetLastModified(int64_t aLastModified) override;
|
|
|
|
virtual nsresult
|
|
SetMutable(bool aMutable) override;
|
|
|
|
virtual BlobChild*
|
|
GetBlobChild() override;
|
|
|
|
virtual BlobParent*
|
|
GetBlobParent() override;
|
|
|
|
void
|
|
NullifyDifferentProcessBlobImpl()
|
|
{
|
|
MOZ_ASSERT(mDifferentProcessBlobImpl);
|
|
mDifferentProcessBlobImpl = nullptr;
|
|
}
|
|
|
|
protected:
|
|
// For SliceImpl.
|
|
RemoteBlobImpl(const nsAString& aContentType, uint64_t aLength);
|
|
|
|
~RemoteBlobImpl()
|
|
{
|
|
MOZ_ASSERT_IF(mActorTarget,
|
|
EventTargetIsOnCurrentThread(mActorTarget));
|
|
}
|
|
|
|
void
|
|
CommonInit(BlobChild* aActor);
|
|
|
|
void
|
|
Destroy();
|
|
};
|
|
|
|
class BlobChild::RemoteBlobImpl::CreateStreamHelper final
|
|
: public Runnable
|
|
{
|
|
Monitor mMonitor;
|
|
RefPtr<RemoteBlobImpl> mRemoteBlobImpl;
|
|
RefPtr<RemoteInputStream> mInputStream;
|
|
const uint64_t mStart;
|
|
const uint64_t mLength;
|
|
bool mDone;
|
|
|
|
public:
|
|
explicit CreateStreamHelper(RemoteBlobImpl* aRemoteBlobImpl);
|
|
|
|
nsresult
|
|
GetStream(nsIInputStream** aInputStream);
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_NSIRUNNABLE
|
|
|
|
private:
|
|
~CreateStreamHelper()
|
|
{
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(!mInputStream);
|
|
MOZ_ASSERT(mDone);
|
|
}
|
|
|
|
void
|
|
RunInternal(RemoteBlobImpl* aBaseRemoteBlobImpl, bool aNotify);
|
|
};
|
|
|
|
class BlobChild::RemoteBlobSliceImpl final
|
|
: public RemoteBlobImpl
|
|
{
|
|
RefPtr<RemoteBlobImpl> mParent;
|
|
bool mActorWasCreated;
|
|
|
|
public:
|
|
RemoteBlobSliceImpl(RemoteBlobImpl* aParent,
|
|
uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType);
|
|
|
|
RemoteBlobImpl*
|
|
Parent() const
|
|
{
|
|
MOZ_ASSERT(mParent);
|
|
|
|
return const_cast<RemoteBlobImpl*>(mParent.get());
|
|
}
|
|
|
|
uint64_t
|
|
Start() const
|
|
{
|
|
return mStart;
|
|
}
|
|
|
|
void
|
|
EnsureActorWasCreated()
|
|
{
|
|
MOZ_ASSERT_IF(!ActorEventTargetIsOnCurrentThread(),
|
|
mActorWasCreated);
|
|
|
|
if (!mActorWasCreated) {
|
|
EnsureActorWasCreatedInternal();
|
|
}
|
|
}
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
virtual BlobChild*
|
|
GetBlobChild() override;
|
|
|
|
private:
|
|
~RemoteBlobSliceImpl()
|
|
{ }
|
|
|
|
void
|
|
EnsureActorWasCreatedInternal();
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* BlobParent::RemoteBlobImpl Declaration
|
|
******************************************************************************/
|
|
|
|
class BlobParent::RemoteBlobImpl final
|
|
: public BlobImpl
|
|
, public nsIRemoteBlob
|
|
{
|
|
BlobParent* mActor;
|
|
nsCOMPtr<nsIEventTarget> mActorTarget;
|
|
RefPtr<BlobImpl> mBlobImpl;
|
|
|
|
public:
|
|
RemoteBlobImpl(BlobParent* aActor, BlobImpl* aBlobImpl);
|
|
|
|
void
|
|
NoteDyingActor();
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
virtual void
|
|
GetName(nsAString& aName) const override;
|
|
|
|
virtual void
|
|
GetPath(nsAString& aPath) const override;
|
|
|
|
virtual void
|
|
SetPath(const nsAString& aPath) override;
|
|
|
|
virtual int64_t
|
|
GetLastModified(ErrorResult& aRv) override;
|
|
|
|
virtual void
|
|
SetLastModified(int64_t aLastModified) override;
|
|
|
|
virtual void
|
|
GetMozFullPath(nsAString& aName, ErrorResult& aRv) const override;
|
|
|
|
virtual void
|
|
GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) const override;
|
|
|
|
virtual uint64_t
|
|
GetSize(ErrorResult& aRv) override;
|
|
|
|
virtual void
|
|
GetType(nsAString& aType) override;
|
|
|
|
virtual uint64_t
|
|
GetSerialNumber() const override;
|
|
|
|
virtual already_AddRefed<BlobImpl>
|
|
CreateSlice(uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv) override;
|
|
|
|
virtual const nsTArray<RefPtr<BlobImpl>>*
|
|
GetSubBlobImpls() const override;
|
|
|
|
virtual void
|
|
GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv) override;
|
|
|
|
virtual int64_t
|
|
GetFileId() override;
|
|
|
|
virtual nsresult
|
|
GetSendInfo(nsIInputStream** aBody,
|
|
uint64_t* aContentLength,
|
|
nsACString& aContentType,
|
|
nsACString& aCharset) override;
|
|
|
|
virtual nsresult
|
|
GetMutable(bool* aMutable) const override;
|
|
|
|
virtual nsresult
|
|
SetMutable(bool aMutable) override;
|
|
|
|
virtual void
|
|
SetLazyData(const nsAString& aName,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
int64_t aLastModifiedDate) override;
|
|
|
|
virtual bool
|
|
IsMemoryFile() const override;
|
|
|
|
virtual bool
|
|
IsSizeUnknown() const override;
|
|
|
|
virtual bool
|
|
IsDateUnknown() const override;
|
|
|
|
virtual bool
|
|
IsFile() const override;
|
|
|
|
virtual bool
|
|
MayBeClonedToOtherThreads() const override;
|
|
|
|
virtual BlobChild*
|
|
GetBlobChild() override;
|
|
|
|
virtual BlobParent*
|
|
GetBlobParent() override;
|
|
|
|
private:
|
|
~RemoteBlobImpl()
|
|
{
|
|
MOZ_ASSERT_IF(mActorTarget,
|
|
EventTargetIsOnCurrentThread(mActorTarget));
|
|
}
|
|
|
|
void
|
|
Destroy();
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* BlobChild::RemoteBlobImpl
|
|
******************************************************************************/
|
|
|
|
BlobChild::
|
|
RemoteBlobImpl::RemoteBlobImpl(BlobChild* aActor,
|
|
BlobImpl* aRemoteBlobImpl,
|
|
const nsAString& aName,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
int64_t aModDate,
|
|
bool aIsSameProcessBlob)
|
|
: BlobImplBase(aName, aContentType, aLength, aModDate)
|
|
, mIsSlice(false)
|
|
{
|
|
if (aIsSameProcessBlob) {
|
|
MOZ_ASSERT(aRemoteBlobImpl);
|
|
mSameProcessBlobImpl = aRemoteBlobImpl;
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
} else {
|
|
mDifferentProcessBlobImpl = aRemoteBlobImpl;
|
|
}
|
|
|
|
CommonInit(aActor);
|
|
}
|
|
|
|
BlobChild::
|
|
RemoteBlobImpl::RemoteBlobImpl(BlobChild* aActor,
|
|
BlobImpl* aRemoteBlobImpl,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
bool aIsSameProcessBlob)
|
|
: BlobImplBase(aContentType, aLength)
|
|
, mIsSlice(false)
|
|
{
|
|
if (aIsSameProcessBlob) {
|
|
MOZ_ASSERT(aRemoteBlobImpl);
|
|
mSameProcessBlobImpl = aRemoteBlobImpl;
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
} else {
|
|
mDifferentProcessBlobImpl = aRemoteBlobImpl;
|
|
}
|
|
|
|
CommonInit(aActor);
|
|
}
|
|
|
|
BlobChild::
|
|
RemoteBlobImpl::RemoteBlobImpl(BlobChild* aActor)
|
|
: BlobImplBase(EmptyString(), EmptyString(), UINT64_MAX, INT64_MAX)
|
|
, mIsSlice(false)
|
|
{
|
|
CommonInit(aActor);
|
|
}
|
|
|
|
BlobChild::
|
|
RemoteBlobImpl::RemoteBlobImpl(const nsAString& aContentType, uint64_t aLength)
|
|
: BlobImplBase(aContentType, aLength)
|
|
, mActor(nullptr)
|
|
, mIsSlice(true)
|
|
{
|
|
mImmutable = true;
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::CommonInit(BlobChild* aActor)
|
|
{
|
|
MOZ_ASSERT(aActor);
|
|
aActor->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(!mIsSlice);
|
|
|
|
mActor = aActor;
|
|
mActorTarget = aActor->EventTarget();
|
|
|
|
mImmutable = true;
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::NoteDyingActor()
|
|
{
|
|
MOZ_ASSERT(mActor);
|
|
mActor->AssertIsOnOwningThread();
|
|
|
|
mActor = nullptr;
|
|
}
|
|
|
|
BlobChild::RemoteBlobSliceImpl*
|
|
BlobChild::
|
|
RemoteBlobImpl::AsSlice() const
|
|
{
|
|
MOZ_ASSERT(IsSlice());
|
|
|
|
return static_cast<RemoteBlobSliceImpl*>(const_cast<RemoteBlobImpl*>(this));
|
|
}
|
|
|
|
BlobChild::RemoteBlobImpl*
|
|
BlobChild::
|
|
RemoteBlobImpl::BaseRemoteBlobImpl() const
|
|
{
|
|
if (IsSlice()) {
|
|
return AsSlice()->Parent()->BaseRemoteBlobImpl();
|
|
}
|
|
|
|
return const_cast<RemoteBlobImpl*>(this);
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::Destroy()
|
|
{
|
|
if (EventTargetIsOnCurrentThread(mActorTarget)) {
|
|
if (mActor) {
|
|
mActor->AssertIsOnOwningThread();
|
|
mActor->NoteDyingRemoteBlobImpl();
|
|
}
|
|
|
|
delete this;
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> destroyRunnable =
|
|
NewNonOwningRunnableMethod(this, &RemoteBlobImpl::Destroy);
|
|
|
|
if (mActorTarget) {
|
|
destroyRunnable =
|
|
new CancelableRunnableWrapper(destroyRunnable, mActorTarget);
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mActorTarget->Dispatch(destroyRunnable,
|
|
NS_DISPATCH_NORMAL));
|
|
} else {
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(destroyRunnable));
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ADDREF(BlobChild::RemoteBlobImpl)
|
|
NS_IMPL_RELEASE_WITH_DESTROY(BlobChild::RemoteBlobImpl, Destroy())
|
|
NS_IMPL_QUERY_INTERFACE_INHERITED(BlobChild::RemoteBlobImpl,
|
|
BlobImpl,
|
|
nsIRemoteBlob)
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::GetMozFullPathInternal(nsAString& aFilePath,
|
|
ErrorResult& aRv) const
|
|
{
|
|
if (!EventTargetIsOnCurrentThread(mActorTarget)) {
|
|
MOZ_CRASH("Not implemented!");
|
|
}
|
|
|
|
if (mSameProcessBlobImpl) {
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
mSameProcessBlobImpl->GetMozFullPathInternal(aFilePath, aRv);
|
|
return;
|
|
}
|
|
|
|
if (!mActor) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return;
|
|
}
|
|
|
|
nsString filePath;
|
|
if (!mActor->SendGetFilePath(&filePath)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
aFilePath = filePath;
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
BlobChild::
|
|
RemoteBlobImpl::CreateSlice(uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv)
|
|
{
|
|
// May be called on any thread.
|
|
if (mSameProcessBlobImpl) {
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
return mSameProcessBlobImpl->CreateSlice(aStart,
|
|
aLength,
|
|
aContentType,
|
|
aRv);
|
|
}
|
|
|
|
RefPtr<RemoteBlobSliceImpl> slice =
|
|
new RemoteBlobSliceImpl(this, aStart, aLength, aContentType);
|
|
return slice.forget();
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv)
|
|
{
|
|
// May be called on any thread.
|
|
if (mSameProcessBlobImpl) {
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
nsCOMPtr<nsIInputStream> realStream;
|
|
mSameProcessBlobImpl->GetInternalStream(getter_AddRefs(realStream), aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return;
|
|
}
|
|
|
|
RefPtr<BlobInputStreamTether> tether =
|
|
new BlobInputStreamTether(realStream, mSameProcessBlobImpl);
|
|
tether.forget(aStream);
|
|
return;
|
|
}
|
|
|
|
RefPtr<CreateStreamHelper> helper = new CreateStreamHelper(this);
|
|
aRv = helper->GetStream(aStream);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
int64_t
|
|
BlobChild::
|
|
RemoteBlobImpl::GetFileId()
|
|
{
|
|
if (!EventTargetIsOnCurrentThread(mActorTarget)) {
|
|
MOZ_CRASH("Not implemented!");
|
|
}
|
|
|
|
if (mSameProcessBlobImpl) {
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
return mSameProcessBlobImpl->GetFileId();
|
|
}
|
|
|
|
int64_t fileId;
|
|
if (mActor && mActor->SendGetFileId(&fileId)) {
|
|
return fileId;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
int64_t
|
|
BlobChild::
|
|
RemoteBlobImpl::GetLastModified(ErrorResult& aRv)
|
|
{
|
|
if (IsDateUnknown()) {
|
|
return 0;
|
|
}
|
|
|
|
return mLastModificationDate;
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobImpl::SetLastModified(int64_t aLastModified)
|
|
{
|
|
MOZ_CRASH("SetLastModified of a remote blob is not allowed!");
|
|
}
|
|
|
|
nsresult
|
|
BlobChild::
|
|
RemoteBlobImpl::SetMutable(bool aMutable)
|
|
{
|
|
if (!aMutable && IsSlice()) {
|
|
// Make sure that slices are backed by a real actor now while we are still
|
|
// on the correct thread.
|
|
AsSlice()->EnsureActorWasCreated();
|
|
}
|
|
|
|
nsresult rv = BlobImplBase::SetMutable(aMutable);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
MOZ_ASSERT_IF(!aMutable, mImmutable);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
BlobChild*
|
|
BlobChild::
|
|
RemoteBlobImpl::GetBlobChild()
|
|
{
|
|
return mActor;
|
|
}
|
|
|
|
BlobParent*
|
|
BlobChild::
|
|
RemoteBlobImpl::GetBlobParent()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobChild::RemoteBlobImpl::CreateStreamHelper
|
|
******************************************************************************/
|
|
|
|
BlobChild::RemoteBlobImpl::
|
|
CreateStreamHelper::CreateStreamHelper(RemoteBlobImpl* aRemoteBlobImpl)
|
|
: mMonitor("BlobChild::RemoteBlobImpl::CreateStreamHelper::mMonitor")
|
|
, mRemoteBlobImpl(aRemoteBlobImpl)
|
|
, mStart(aRemoteBlobImpl->IsSlice() ? aRemoteBlobImpl->AsSlice()->Start() : 0)
|
|
, mLength(0)
|
|
, mDone(false)
|
|
{
|
|
// This may be created on any thread.
|
|
MOZ_ASSERT(aRemoteBlobImpl);
|
|
|
|
ErrorResult rv;
|
|
const_cast<uint64_t&>(mLength) = aRemoteBlobImpl->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
}
|
|
|
|
nsresult
|
|
BlobChild::RemoteBlobImpl::
|
|
CreateStreamHelper::GetStream(nsIInputStream** aInputStream)
|
|
{
|
|
// This may be called on any thread.
|
|
MOZ_ASSERT(aInputStream);
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
MOZ_ASSERT(!mInputStream);
|
|
MOZ_ASSERT(!mDone);
|
|
|
|
RefPtr<RemoteBlobImpl> baseRemoteBlobImpl =
|
|
mRemoteBlobImpl->BaseRemoteBlobImpl();
|
|
MOZ_ASSERT(baseRemoteBlobImpl);
|
|
|
|
if (EventTargetIsOnCurrentThread(baseRemoteBlobImpl->GetActorEventTarget())) {
|
|
RunInternal(baseRemoteBlobImpl, false);
|
|
} else {
|
|
MOZ_ASSERT(!NS_IsMainThread());
|
|
|
|
nsCOMPtr<nsIEventTarget> target = baseRemoteBlobImpl->GetActorEventTarget();
|
|
if (!target) {
|
|
target = do_GetMainThread();
|
|
}
|
|
|
|
MOZ_ASSERT(target);
|
|
|
|
nsresult rv = target->Dispatch(this, NS_DISPATCH_NORMAL);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
DebugOnly<bool> warned = false;
|
|
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
while (!mDone) {
|
|
#ifdef DEBUG
|
|
if (!warned) {
|
|
NS_WARNING("RemoteBlobImpl::GetInternalStream() called on thread "
|
|
"that can't send messages, blocking here to wait for the "
|
|
"actor's thread to send the message!");
|
|
}
|
|
#endif
|
|
lock.Wait();
|
|
}
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mDone);
|
|
|
|
if (!mInputStream) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
mInputStream.forget(aInputStream);
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
BlobChild::RemoteBlobImpl::
|
|
CreateStreamHelper::RunInternal(RemoteBlobImpl* aBaseRemoteBlobImpl,
|
|
bool aNotify)
|
|
{
|
|
MOZ_ASSERT(aBaseRemoteBlobImpl);
|
|
MOZ_ASSERT(aBaseRemoteBlobImpl->ActorEventTargetIsOnCurrentThread());
|
|
MOZ_ASSERT(!mInputStream);
|
|
MOZ_ASSERT(!mDone);
|
|
|
|
if (BlobChild* actor = aBaseRemoteBlobImpl->GetActor()) {
|
|
RefPtr<RemoteInputStream> stream;
|
|
|
|
if (!NS_IsMainThread() && GetCurrentThreadWorkerPrivate()) {
|
|
stream =
|
|
new RemoteInputStream(actor, mRemoteBlobImpl, mStart, mLength);
|
|
} else {
|
|
stream = new RemoteInputStream(mRemoteBlobImpl, mStart, mLength);
|
|
}
|
|
|
|
InputStreamChild* streamActor = new InputStreamChild(stream);
|
|
if (actor->SendPBlobStreamConstructor(streamActor, mStart, mLength)) {
|
|
stream.swap(mInputStream);
|
|
}
|
|
}
|
|
|
|
mRemoteBlobImpl = nullptr;
|
|
|
|
if (aNotify) {
|
|
MonitorAutoLock lock(mMonitor);
|
|
mDone = true;
|
|
lock.Notify();
|
|
} else {
|
|
mDone = true;
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(BlobChild::RemoteBlobImpl::CreateStreamHelper,
|
|
Runnable)
|
|
|
|
NS_IMETHODIMP
|
|
BlobChild::RemoteBlobImpl::
|
|
CreateStreamHelper::Run()
|
|
{
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
MOZ_ASSERT(mRemoteBlobImpl->ActorEventTargetIsOnCurrentThread());
|
|
|
|
RefPtr<RemoteBlobImpl> baseRemoteBlobImpl =
|
|
mRemoteBlobImpl->BaseRemoteBlobImpl();
|
|
MOZ_ASSERT(baseRemoteBlobImpl);
|
|
|
|
RunInternal(baseRemoteBlobImpl, true);
|
|
return NS_OK;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobChild::RemoteBlobSliceImpl
|
|
******************************************************************************/
|
|
|
|
BlobChild::
|
|
RemoteBlobSliceImpl::RemoteBlobSliceImpl(RemoteBlobImpl* aParent,
|
|
uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType)
|
|
: RemoteBlobImpl(aContentType, aLength)
|
|
, mParent(aParent->BaseRemoteBlobImpl())
|
|
, mActorWasCreated(false)
|
|
{
|
|
MOZ_ASSERT(mParent);
|
|
MOZ_ASSERT(mParent->BaseRemoteBlobImpl() == mParent);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aParent->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
ErrorResult rv;
|
|
uint64_t parentSize = aParent->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
MOZ_ASSERT(parentSize >= aStart + aLength);
|
|
}
|
|
#endif
|
|
|
|
// Account for the offset of the parent slice, if any.
|
|
mStart = aParent->IsSlice() ? aParent->AsSlice()->mStart + aStart : aStart;
|
|
}
|
|
|
|
void
|
|
BlobChild::
|
|
RemoteBlobSliceImpl::EnsureActorWasCreatedInternal()
|
|
{
|
|
MOZ_ASSERT(ActorEventTargetIsOnCurrentThread());
|
|
MOZ_ASSERT(!mActorWasCreated);
|
|
|
|
mActorWasCreated = true;
|
|
|
|
BlobChild* baseActor = mParent->GetActor();
|
|
MOZ_ASSERT(baseActor);
|
|
MOZ_ASSERT(baseActor->HasManager());
|
|
|
|
nsID id;
|
|
MOZ_ALWAYS_SUCCEEDS(gUUIDGenerator->GenerateUUIDInPlace(&id));
|
|
|
|
ParentBlobConstructorParams params(
|
|
SlicedBlobConstructorParams(nullptr /* sourceParent */,
|
|
baseActor /* sourceChild */,
|
|
id /* id */,
|
|
mStart /* begin */,
|
|
mStart + mLength /* end */,
|
|
mContentType /* contentType */));
|
|
|
|
if (nsIContentChild* contentManager = baseActor->GetContentManager()) {
|
|
mActor = SendSliceConstructor(contentManager, this, params);
|
|
} else {
|
|
mActor =
|
|
SendSliceConstructor(baseActor->GetBackgroundManager(), this, params);
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(BlobChild::RemoteBlobSliceImpl,
|
|
BlobChild::RemoteBlobImpl)
|
|
|
|
BlobChild*
|
|
BlobChild::
|
|
RemoteBlobSliceImpl::GetBlobChild()
|
|
{
|
|
EnsureActorWasCreated();
|
|
|
|
return RemoteBlobImpl::GetBlobChild();
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobParent::RemoteBlobImpl
|
|
******************************************************************************/
|
|
|
|
BlobParent::
|
|
RemoteBlobImpl::RemoteBlobImpl(BlobParent* aActor, BlobImpl* aBlobImpl)
|
|
: mActor(aActor)
|
|
, mActorTarget(aActor->EventTarget())
|
|
, mBlobImpl(aBlobImpl)
|
|
{
|
|
MOZ_ASSERT(aActor);
|
|
aActor->AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::NoteDyingActor()
|
|
{
|
|
MOZ_ASSERT(mActor);
|
|
mActor->AssertIsOnOwningThread();
|
|
|
|
mActor = nullptr;
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::Destroy()
|
|
{
|
|
if (EventTargetIsOnCurrentThread(mActorTarget)) {
|
|
if (mActor) {
|
|
mActor->AssertIsOnOwningThread();
|
|
mActor->NoteDyingRemoteBlobImpl();
|
|
}
|
|
|
|
delete this;
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> destroyRunnable =
|
|
NewNonOwningRunnableMethod(this, &RemoteBlobImpl::Destroy);
|
|
|
|
if (mActorTarget) {
|
|
destroyRunnable =
|
|
new CancelableRunnableWrapper(destroyRunnable, mActorTarget);
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mActorTarget->Dispatch(destroyRunnable,
|
|
NS_DISPATCH_NORMAL));
|
|
} else {
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(destroyRunnable));
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ADDREF(BlobParent::RemoteBlobImpl)
|
|
NS_IMPL_RELEASE_WITH_DESTROY(BlobParent::RemoteBlobImpl, Destroy())
|
|
NS_IMPL_QUERY_INTERFACE_INHERITED(BlobParent::RemoteBlobImpl,
|
|
BlobImpl,
|
|
nsIRemoteBlob)
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetName(nsAString& aName) const
|
|
{
|
|
mBlobImpl->GetName(aName);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetPath(nsAString& aPath) const
|
|
{
|
|
mBlobImpl->GetPath(aPath);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::SetPath(const nsAString& aPath)
|
|
{
|
|
mBlobImpl->SetPath(aPath);
|
|
}
|
|
|
|
int64_t
|
|
BlobParent::
|
|
RemoteBlobImpl::GetLastModified(ErrorResult& aRv)
|
|
{
|
|
return mBlobImpl->GetLastModified(aRv);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::SetLastModified(int64_t aLastModified)
|
|
{
|
|
MOZ_CRASH("SetLastModified of a remote blob is not allowed!");
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetMozFullPath(nsAString& aName, ErrorResult& aRv) const
|
|
{
|
|
mBlobImpl->GetMozFullPath(aName, aRv);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetMozFullPathInternal(nsAString& aFileName, ErrorResult& aRv) const
|
|
{
|
|
mBlobImpl->GetMozFullPathInternal(aFileName, aRv);
|
|
}
|
|
|
|
uint64_t
|
|
BlobParent::
|
|
RemoteBlobImpl::GetSize(ErrorResult& aRv)
|
|
{
|
|
return mBlobImpl->GetSize(aRv);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetType(nsAString& aType)
|
|
{
|
|
mBlobImpl->GetType(aType);
|
|
}
|
|
|
|
uint64_t
|
|
BlobParent::
|
|
RemoteBlobImpl::GetSerialNumber() const
|
|
{
|
|
return mBlobImpl->GetSerialNumber();
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
BlobParent::
|
|
RemoteBlobImpl::CreateSlice(uint64_t aStart,
|
|
uint64_t aLength,
|
|
const nsAString& aContentType,
|
|
ErrorResult& aRv)
|
|
{
|
|
return mBlobImpl->CreateSlice(aStart, aLength, aContentType, aRv);
|
|
}
|
|
|
|
const nsTArray<RefPtr<BlobImpl>>*
|
|
BlobParent::
|
|
RemoteBlobImpl::GetSubBlobImpls() const
|
|
{
|
|
return mBlobImpl->GetSubBlobImpls();
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::GetInternalStream(nsIInputStream** aStream, ErrorResult& aRv)
|
|
{
|
|
mBlobImpl->GetInternalStream(aStream, aRv);
|
|
}
|
|
|
|
int64_t
|
|
BlobParent::
|
|
RemoteBlobImpl::GetFileId()
|
|
{
|
|
return mBlobImpl->GetFileId();
|
|
}
|
|
|
|
nsresult
|
|
BlobParent::
|
|
RemoteBlobImpl::GetSendInfo(nsIInputStream** aBody,
|
|
uint64_t* aContentLength,
|
|
nsACString& aContentType,
|
|
nsACString& aCharset)
|
|
{
|
|
return mBlobImpl->GetSendInfo(aBody,
|
|
aContentLength,
|
|
aContentType,
|
|
aCharset);
|
|
}
|
|
|
|
nsresult
|
|
BlobParent::
|
|
RemoteBlobImpl::GetMutable(bool* aMutable) const
|
|
{
|
|
return mBlobImpl->GetMutable(aMutable);
|
|
}
|
|
|
|
nsresult
|
|
BlobParent::
|
|
RemoteBlobImpl::SetMutable(bool aMutable)
|
|
{
|
|
return mBlobImpl->SetMutable(aMutable);
|
|
}
|
|
|
|
void
|
|
BlobParent::
|
|
RemoteBlobImpl::SetLazyData(const nsAString& aName,
|
|
const nsAString& aContentType,
|
|
uint64_t aLength,
|
|
int64_t aLastModifiedDate)
|
|
{
|
|
MOZ_CRASH("This should never be called!");
|
|
}
|
|
|
|
bool
|
|
BlobParent::
|
|
RemoteBlobImpl::IsMemoryFile() const
|
|
{
|
|
return mBlobImpl->IsMemoryFile();
|
|
}
|
|
|
|
bool
|
|
BlobParent::
|
|
RemoteBlobImpl::IsSizeUnknown() const
|
|
{
|
|
return mBlobImpl->IsSizeUnknown();
|
|
}
|
|
|
|
bool
|
|
BlobParent::
|
|
RemoteBlobImpl::IsDateUnknown() const
|
|
{
|
|
return mBlobImpl->IsDateUnknown();
|
|
}
|
|
|
|
bool
|
|
BlobParent::
|
|
RemoteBlobImpl::IsFile() const
|
|
{
|
|
return mBlobImpl->IsFile();
|
|
}
|
|
|
|
bool
|
|
BlobParent::
|
|
RemoteBlobImpl::MayBeClonedToOtherThreads() const
|
|
{
|
|
return mBlobImpl->MayBeClonedToOtherThreads();
|
|
}
|
|
|
|
BlobChild*
|
|
BlobParent::
|
|
RemoteBlobImpl::GetBlobChild()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
BlobParent*
|
|
BlobParent::
|
|
RemoteBlobImpl::GetBlobParent()
|
|
{
|
|
return mActor;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobChild
|
|
******************************************************************************/
|
|
|
|
BlobChild::BlobChild(nsIContentChild* aManager, BlobImpl* aBlobImpl)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aBlobImpl);
|
|
}
|
|
|
|
BlobChild::BlobChild(PBackgroundChild* aManager, BlobImpl* aBlobImpl)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
mEventTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mEventTarget);
|
|
}
|
|
|
|
CommonInit(aBlobImpl);
|
|
}
|
|
|
|
BlobChild::BlobChild(nsIContentChild* aManager, BlobChild* aOther)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aOther, /* aBlobImpl */ nullptr);
|
|
}
|
|
|
|
BlobChild::BlobChild(PBackgroundChild* aManager,
|
|
BlobChild* aOther,
|
|
BlobImpl* aBlobImpl)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
mEventTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mEventTarget);
|
|
}
|
|
|
|
CommonInit(aOther, aBlobImpl);
|
|
}
|
|
|
|
BlobChild::BlobChild(nsIContentChild* aManager,
|
|
const ChildBlobConstructorParams& aParams)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aParams);
|
|
}
|
|
|
|
BlobChild::BlobChild(PBackgroundChild* aManager,
|
|
const ChildBlobConstructorParams& aParams)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
mEventTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mEventTarget);
|
|
}
|
|
|
|
CommonInit(aParams);
|
|
}
|
|
|
|
BlobChild::BlobChild(nsIContentChild* aManager,
|
|
const nsID& aParentID,
|
|
RemoteBlobSliceImpl* aRemoteBlobSliceImpl)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aParentID, aRemoteBlobSliceImpl);
|
|
}
|
|
|
|
BlobChild::BlobChild(PBackgroundChild* aManager,
|
|
const nsID& aParentID,
|
|
RemoteBlobSliceImpl* aRemoteBlobSliceImpl)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
mEventTarget = do_GetCurrentThread();
|
|
MOZ_ASSERT(mEventTarget);
|
|
}
|
|
|
|
CommonInit(aParentID, aRemoteBlobSliceImpl);
|
|
}
|
|
|
|
BlobChild::~BlobChild()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_DTOR(BlobChild);
|
|
}
|
|
|
|
void
|
|
BlobChild::CommonInit(BlobImpl* aBlobImpl)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
MOZ_COUNT_CTOR(BlobChild);
|
|
|
|
mBlobImpl = aBlobImpl;
|
|
mRemoteBlobImpl = nullptr;
|
|
|
|
mBlobImpl->AddRef();
|
|
mOwnsBlobImpl = true;
|
|
|
|
memset(&mParentID, 0, sizeof(mParentID));
|
|
}
|
|
|
|
void
|
|
BlobChild::CommonInit(BlobChild* aOther, BlobImpl* aBlobImpl)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aOther);
|
|
MOZ_ASSERT_IF(mContentManager, aOther->GetBackgroundManager());
|
|
MOZ_ASSERT_IF(mContentManager, !aBlobImpl);
|
|
MOZ_ASSERT_IF(mBackgroundManager, aBlobImpl);
|
|
|
|
RefPtr<BlobImpl> otherImpl;
|
|
if (mBackgroundManager && aOther->GetBackgroundManager()) {
|
|
otherImpl = aBlobImpl;
|
|
} else {
|
|
otherImpl = aOther->GetBlobImpl();
|
|
}
|
|
MOZ_ASSERT(otherImpl);
|
|
|
|
nsString contentType;
|
|
otherImpl->GetType(contentType);
|
|
|
|
ErrorResult rv;
|
|
uint64_t length = otherImpl->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
RemoteBlobImpl* remoteBlob = nullptr;
|
|
if (otherImpl->IsFile()) {
|
|
nsString name;
|
|
otherImpl->GetName(name);
|
|
|
|
int64_t modDate = otherImpl->GetLastModified(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
remoteBlob = new RemoteBlobImpl(this, otherImpl, name, contentType, length,
|
|
modDate, false /* SameProcessBlobImpl */);
|
|
} else {
|
|
remoteBlob = new RemoteBlobImpl(this, otherImpl, contentType, length,
|
|
false /* SameProcessBlobImpl */);
|
|
}
|
|
|
|
// This RemoteBlob must be kept alive untill RecvCreatedFromKnownBlob is
|
|
// called because the parent will send this notification and we must be able
|
|
// to manage it.
|
|
MOZ_ASSERT(remoteBlob);
|
|
remoteBlob->AddRef();
|
|
|
|
CommonInit(aOther->ParentID(), remoteBlob);
|
|
}
|
|
|
|
void
|
|
BlobChild::CommonInit(const ChildBlobConstructorParams& aParams)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_CTOR(BlobChild);
|
|
|
|
const AnyBlobConstructorParams& blobParams = aParams.blobParams();
|
|
|
|
AnyBlobConstructorParams::Type paramsType = blobParams.type();
|
|
MOZ_ASSERT(paramsType != AnyBlobConstructorParams::T__None &&
|
|
paramsType !=
|
|
AnyBlobConstructorParams::TSlicedBlobConstructorParams &&
|
|
paramsType !=
|
|
AnyBlobConstructorParams::TKnownBlobConstructorParams);
|
|
|
|
RefPtr<RemoteBlobImpl> remoteBlob;
|
|
|
|
switch (paramsType) {
|
|
case AnyBlobConstructorParams::TNormalBlobConstructorParams: {
|
|
const NormalBlobConstructorParams& params =
|
|
blobParams.get_NormalBlobConstructorParams();
|
|
remoteBlob =
|
|
new RemoteBlobImpl(this, nullptr, params.contentType(), params.length(),
|
|
false /* SameProcessBlobImpl */);
|
|
break;
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TFileBlobConstructorParams: {
|
|
const FileBlobConstructorParams& params =
|
|
blobParams.get_FileBlobConstructorParams();
|
|
remoteBlob = new RemoteBlobImpl(this,
|
|
nullptr,
|
|
params.name(),
|
|
params.contentType(),
|
|
params.length(),
|
|
params.modDate(),
|
|
false /* SameProcessBlobImpl */);
|
|
break;
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TSameProcessBlobConstructorParams: {
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
|
|
const SameProcessBlobConstructorParams& params =
|
|
blobParams.get_SameProcessBlobConstructorParams();
|
|
MOZ_ASSERT(params.addRefedBlobImpl());
|
|
|
|
RefPtr<BlobImpl> blobImpl =
|
|
dont_AddRef(reinterpret_cast<BlobImpl*>(params.addRefedBlobImpl()));
|
|
|
|
ErrorResult rv;
|
|
uint64_t size = blobImpl->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
nsString contentType;
|
|
blobImpl->GetType(contentType);
|
|
|
|
if (blobImpl->IsFile()) {
|
|
nsString name;
|
|
blobImpl->GetName(name);
|
|
|
|
int64_t lastModifiedDate = blobImpl->GetLastModified(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
remoteBlob =
|
|
new RemoteBlobImpl(this,
|
|
blobImpl,
|
|
name,
|
|
contentType,
|
|
size,
|
|
lastModifiedDate,
|
|
true /* SameProcessBlobImpl */);
|
|
} else {
|
|
remoteBlob = new RemoteBlobImpl(this, blobImpl, contentType, size,
|
|
true /* SameProcessBlobImpl */);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TMysteryBlobConstructorParams: {
|
|
remoteBlob = new RemoteBlobImpl(this);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown params!");
|
|
}
|
|
|
|
MOZ_ASSERT(remoteBlob);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(remoteBlob->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
mRemoteBlobImpl = remoteBlob;
|
|
|
|
remoteBlob.forget(&mBlobImpl);
|
|
mOwnsBlobImpl = true;
|
|
|
|
mParentID = aParams.id();
|
|
}
|
|
|
|
void
|
|
BlobChild::CommonInit(const nsID& aParentID, RemoteBlobImpl* aRemoteBlobImpl)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aRemoteBlobImpl);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aRemoteBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
MOZ_COUNT_CTOR(BlobChild);
|
|
|
|
RefPtr<RemoteBlobImpl> remoteBlob = aRemoteBlobImpl;
|
|
|
|
mRemoteBlobImpl = remoteBlob;
|
|
|
|
remoteBlob.forget(&mBlobImpl);
|
|
mOwnsBlobImpl = true;
|
|
|
|
mParentID = aParentID;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
void
|
|
BlobChild::AssertIsOnOwningThread() const
|
|
{
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
#endif // DEBUG
|
|
|
|
// static
|
|
void
|
|
BlobChild::Startup(const FriendKey& /* aKey */)
|
|
{
|
|
MOZ_ASSERT(!XRE_IsParentProcess());
|
|
|
|
CommonStartup();
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::GetOrCreate(nsIContentChild* aManager, BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return GetOrCreateFromImpl(aManager, aBlobImpl);
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::GetOrCreate(PBackgroundChild* aManager, BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return GetOrCreateFromImpl(aManager, aBlobImpl);
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::Create(nsIContentChild* aManager,
|
|
const ChildBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return CreateFromParams(aManager, aParams);
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::Create(PBackgroundChild* aManager,
|
|
const ChildBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return CreateFromParams(aManager, aParams);
|
|
}
|
|
|
|
// static
|
|
template <class ChildManagerType>
|
|
BlobChild*
|
|
BlobChild::GetOrCreateFromImpl(ChildManagerType* aManager,
|
|
BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
// If the blob represents a wrapper around real blob implementation (so called
|
|
// snapshot) then we need to get the real one.
|
|
if (nsCOMPtr<PIBlobImplSnapshot> snapshot = do_QueryInterface(aBlobImpl)) {
|
|
aBlobImpl = snapshot->GetBlobImpl();
|
|
if (!aBlobImpl) {
|
|
// The snapshot is not valid anymore.
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
// If the blob represents a remote blob then we can simply pass its actor back
|
|
// here.
|
|
if (nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryInterface(aBlobImpl)) {
|
|
BlobChild* actor =
|
|
MaybeGetActorFromRemoteBlob(remoteBlob, aManager, aBlobImpl);
|
|
if (actor) {
|
|
return actor;
|
|
}
|
|
}
|
|
|
|
// All blobs shared between threads or processes must be immutable.
|
|
if (NS_WARN_IF(NS_FAILED(aBlobImpl->SetMutable(false)))) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(!aBlobImpl->IsSizeUnknown());
|
|
MOZ_ASSERT(!aBlobImpl->IsDateUnknown());
|
|
|
|
AnyBlobConstructorParams blobParams;
|
|
|
|
if (gProcessType == GeckoProcessType_Default) {
|
|
RefPtr<BlobImpl> sameProcessImpl = aBlobImpl;
|
|
auto addRefedBlobImpl =
|
|
reinterpret_cast<intptr_t>(sameProcessImpl.forget().take());
|
|
|
|
blobParams = SameProcessBlobConstructorParams(addRefedBlobImpl);
|
|
} else {
|
|
BlobData blobData;
|
|
BlobDataFromBlobImpl(aBlobImpl, blobData);
|
|
|
|
nsString contentType;
|
|
aBlobImpl->GetType(contentType);
|
|
|
|
ErrorResult rv;
|
|
uint64_t length = aBlobImpl->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
if (aBlobImpl->IsFile()) {
|
|
nsString name;
|
|
aBlobImpl->GetName(name);
|
|
|
|
int64_t modDate = aBlobImpl->GetLastModified(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
blobParams =
|
|
FileBlobConstructorParams(name, contentType, length, modDate, blobData);
|
|
} else {
|
|
blobParams = NormalBlobConstructorParams(contentType, length, blobData);
|
|
}
|
|
}
|
|
|
|
BlobChild* actor = new BlobChild(aManager, aBlobImpl);
|
|
|
|
ParentBlobConstructorParams params(blobParams);
|
|
|
|
if (NS_WARN_IF(!aManager->SendPBlobConstructor(actor, params))) {
|
|
return nullptr;
|
|
}
|
|
|
|
return actor;
|
|
}
|
|
|
|
// static
|
|
template <class ChildManagerType>
|
|
BlobChild*
|
|
BlobChild::CreateFromParams(ChildManagerType* aManager,
|
|
const ChildBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
const AnyBlobConstructorParams& blobParams = aParams.blobParams();
|
|
|
|
switch (blobParams.type()) {
|
|
case AnyBlobConstructorParams::TNormalBlobConstructorParams:
|
|
case AnyBlobConstructorParams::TFileBlobConstructorParams:
|
|
case AnyBlobConstructorParams::TSameProcessBlobConstructorParams:
|
|
case AnyBlobConstructorParams::TMysteryBlobConstructorParams: {
|
|
return new BlobChild(aManager, aParams);
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TSlicedBlobConstructorParams: {
|
|
MOZ_CRASH("Parent should never send SlicedBlobConstructorParams!");
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TKnownBlobConstructorParams: {
|
|
MOZ_CRASH("Parent should never send KnownBlobConstructorParams!");
|
|
}
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown params!");
|
|
}
|
|
|
|
MOZ_CRASH("Should never get here!");
|
|
}
|
|
|
|
// static
|
|
template <class ChildManagerType>
|
|
BlobChild*
|
|
BlobChild::SendSliceConstructor(ChildManagerType* aManager,
|
|
RemoteBlobSliceImpl* aRemoteBlobSliceImpl,
|
|
const ParentBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aRemoteBlobSliceImpl);
|
|
MOZ_ASSERT(aParams.blobParams().type() ==
|
|
AnyBlobConstructorParams::TSlicedBlobConstructorParams);
|
|
|
|
const nsID& id = aParams.blobParams().get_SlicedBlobConstructorParams().id();
|
|
|
|
BlobChild* newActor = new BlobChild(aManager, id, aRemoteBlobSliceImpl);
|
|
|
|
if (aManager->SendPBlobConstructor(newActor, aParams)) {
|
|
if (gProcessType != GeckoProcessType_Default || !NS_IsMainThread()) {
|
|
newActor->SendWaitForSliceCreation();
|
|
}
|
|
return newActor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::MaybeGetActorFromRemoteBlob(nsIRemoteBlob* aRemoteBlob,
|
|
nsIContentChild* aManager,
|
|
BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aRemoteBlob);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
if (BlobChild* actor = aRemoteBlob->GetBlobChild()) {
|
|
if (actor->GetContentManager() == aManager) {
|
|
return actor;
|
|
}
|
|
|
|
MOZ_ASSERT(actor->GetBackgroundManager());
|
|
|
|
actor = new BlobChild(aManager, actor);
|
|
|
|
ParentBlobConstructorParams params(
|
|
KnownBlobConstructorParams(actor->ParentID()));
|
|
|
|
aManager->SendPBlobConstructor(actor, params);
|
|
|
|
return actor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// static
|
|
BlobChild*
|
|
BlobChild::MaybeGetActorFromRemoteBlob(nsIRemoteBlob* aRemoteBlob,
|
|
PBackgroundChild* aManager,
|
|
BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aRemoteBlob);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
if (BlobChild* actor = aRemoteBlob->GetBlobChild()) {
|
|
if (actor->GetBackgroundManager() == aManager) {
|
|
return actor;
|
|
}
|
|
|
|
actor = new BlobChild(aManager, actor, aBlobImpl);
|
|
|
|
ParentBlobConstructorParams params(
|
|
KnownBlobConstructorParams(actor->ParentID()));
|
|
|
|
aManager->SendPBlobConstructor(actor, params);
|
|
|
|
return actor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
const nsID&
|
|
BlobChild::ParentID() const
|
|
{
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
|
|
return mParentID;
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
BlobChild::GetBlobImpl()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
|
|
// Remote blobs are held alive until the first call to GetBlobImpl. Thereafter
|
|
// we only hold a weak reference. Normal blobs are held alive until the actor
|
|
// is destroyed.
|
|
if (mRemoteBlobImpl && mOwnsBlobImpl) {
|
|
blobImpl = dont_AddRef(mBlobImpl);
|
|
mOwnsBlobImpl = false;
|
|
} else {
|
|
blobImpl = mBlobImpl;
|
|
}
|
|
|
|
MOZ_ASSERT(blobImpl);
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
bool
|
|
BlobChild::SetMysteryBlobInfo(const nsString& aName,
|
|
const nsString& aContentType,
|
|
uint64_t aLength,
|
|
int64_t aLastModifiedDate)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
MOZ_ASSERT(aLastModifiedDate != INT64_MAX);
|
|
|
|
mBlobImpl->SetLazyData(aName, aContentType, aLength, aLastModifiedDate);
|
|
|
|
FileBlobConstructorParams params(aName,
|
|
aContentType,
|
|
aLength,
|
|
aLastModifiedDate,
|
|
void_t() /* optionalBlobData */);
|
|
return SendResolveMystery(params);
|
|
}
|
|
|
|
bool
|
|
BlobChild::SetMysteryBlobInfo(const nsString& aContentType, uint64_t aLength)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
|
|
nsString voidString;
|
|
voidString.SetIsVoid(true);
|
|
|
|
mBlobImpl->SetLazyData(voidString, aContentType, aLength, INT64_MAX);
|
|
|
|
NormalBlobConstructorParams params(aContentType,
|
|
aLength,
|
|
void_t() /* optionalBlobData */);
|
|
return SendResolveMystery(params);
|
|
}
|
|
|
|
void
|
|
BlobChild::NoteDyingRemoteBlobImpl()
|
|
{
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
MOZ_ASSERT(!mOwnsBlobImpl);
|
|
|
|
// This may be called on any thread due to the fact that RemoteBlobImpl is
|
|
// designed to be passed between threads. We must start the shutdown process
|
|
// on the owning thread, so we proxy here if necessary.
|
|
if (!IsOnOwningThread()) {
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
NewNonOwningRunnableMethod(this, &BlobChild::NoteDyingRemoteBlobImpl);
|
|
|
|
if (mEventTarget) {
|
|
runnable = new CancelableRunnableWrapper(runnable, mEventTarget);
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mEventTarget->Dispatch(runnable,
|
|
NS_DISPATCH_NORMAL));
|
|
} else {
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// Must do this before calling Send__delete__ or we'll crash there trying to
|
|
// access a dangling pointer.
|
|
mBlobImpl = nullptr;
|
|
mRemoteBlobImpl = nullptr;
|
|
|
|
PBlobChild::Send__delete__(this);
|
|
}
|
|
|
|
bool
|
|
BlobChild::IsOnOwningThread() const
|
|
{
|
|
return EventTargetIsOnCurrentThread(mEventTarget);
|
|
}
|
|
|
|
void
|
|
BlobChild::ActorDestroy(ActorDestroyReason aWhy)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mRemoteBlobImpl) {
|
|
mRemoteBlobImpl->NoteDyingActor();
|
|
}
|
|
|
|
if (mBlobImpl && mOwnsBlobImpl) {
|
|
mBlobImpl->Release();
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
mBlobImpl = nullptr;
|
|
mRemoteBlobImpl = nullptr;
|
|
mBackgroundManager = nullptr;
|
|
mContentManager = nullptr;
|
|
mOwnsBlobImpl = false;
|
|
#endif
|
|
}
|
|
|
|
PBlobStreamChild*
|
|
BlobChild::AllocPBlobStreamChild(const uint64_t& aStart,
|
|
const uint64_t& aLength)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
return new InputStreamChild();
|
|
}
|
|
|
|
bool
|
|
BlobChild::DeallocPBlobStreamChild(PBlobStreamChild* aActor)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
delete static_cast<InputStreamChild*>(aActor);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobChild::RecvCreatedFromKnownBlob()
|
|
{
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
|
|
// Releasing the other blob now that this blob is fully created.
|
|
mRemoteBlobImpl->NullifyDifferentProcessBlobImpl();
|
|
|
|
// Release the additional reference to ourself that was added in order to
|
|
// receive this RecvCreatedFromKnownBlob.
|
|
mRemoteBlobImpl->Release();
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobParent
|
|
******************************************************************************/
|
|
|
|
BlobParent::BlobParent(nsIContentParent* aManager, IDTableEntry* aIDTableEntry)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aIDTableEntry);
|
|
}
|
|
|
|
BlobParent::BlobParent(PBackgroundParent* aManager, IDTableEntry* aIDTableEntry)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
, mEventTarget(do_GetCurrentThread())
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(mEventTarget);
|
|
|
|
CommonInit(aIDTableEntry);
|
|
}
|
|
|
|
BlobParent::BlobParent(nsIContentParent* aManager,
|
|
BlobImpl* aBlobImpl,
|
|
IDTableEntry* aIDTableEntry)
|
|
: mBackgroundManager(nullptr)
|
|
, mContentManager(aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
CommonInit(aBlobImpl, aIDTableEntry);
|
|
}
|
|
|
|
BlobParent::BlobParent(PBackgroundParent* aManager,
|
|
BlobImpl* aBlobImpl,
|
|
IDTableEntry* aIDTableEntry)
|
|
: mBackgroundManager(aManager)
|
|
, mContentManager(nullptr)
|
|
, mEventTarget(do_GetCurrentThread())
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(mEventTarget);
|
|
|
|
CommonInit(aBlobImpl, aIDTableEntry);
|
|
}
|
|
|
|
BlobParent::~BlobParent()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
MOZ_COUNT_DTOR(BlobParent);
|
|
}
|
|
|
|
void
|
|
BlobParent::CommonInit(IDTableEntry* aIDTableEntry)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aIDTableEntry);
|
|
MOZ_ASSERT(aIDTableEntry->GetBlobImpl());
|
|
|
|
MOZ_COUNT_CTOR(BlobParent);
|
|
|
|
mBlobImpl = aIDTableEntry->GetBlobImpl();
|
|
mRemoteBlobImpl = nullptr;
|
|
|
|
mBlobImpl->AddRef();
|
|
mOwnsBlobImpl = true;
|
|
|
|
mIDTableEntry = aIDTableEntry;
|
|
}
|
|
|
|
void
|
|
BlobParent::CommonInit(BlobImpl* aBlobImpl, IDTableEntry* aIDTableEntry)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aBlobImpl);
|
|
MOZ_ASSERT(aIDTableEntry);
|
|
|
|
MOZ_COUNT_CTOR(BlobParent);
|
|
|
|
DebugOnly<bool> isMutable;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
RefPtr<RemoteBlobImpl> remoteBlobImpl = new RemoteBlobImpl(this, aBlobImpl);
|
|
|
|
MOZ_ASSERT(NS_SUCCEEDED(remoteBlobImpl->GetMutable(&isMutable)));
|
|
MOZ_ASSERT(!isMutable);
|
|
|
|
mRemoteBlobImpl = remoteBlobImpl;
|
|
|
|
remoteBlobImpl.forget(&mBlobImpl);
|
|
mOwnsBlobImpl = true;
|
|
|
|
mIDTableEntry = aIDTableEntry;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
void
|
|
BlobParent::AssertIsOnOwningThread() const
|
|
{
|
|
MOZ_ASSERT(IsOnOwningThread());
|
|
}
|
|
|
|
#endif // DEBUG
|
|
|
|
// static
|
|
void
|
|
BlobParent::Startup(const FriendKey& /* aKey */)
|
|
{
|
|
MOZ_ASSERT(XRE_IsParentProcess());
|
|
|
|
CommonStartup();
|
|
|
|
ClearOnShutdown(&sIDTable);
|
|
|
|
sIDTableMutex = new Mutex("BlobParent::sIDTableMutex");
|
|
ClearOnShutdown(&sIDTableMutex);
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::GetOrCreate(nsIContentParent* aManager, BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return GetOrCreateFromImpl(aManager, aBlobImpl);
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::GetOrCreate(PBackgroundParent* aManager, BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return GetOrCreateFromImpl(aManager, aBlobImpl);
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::Create(nsIContentParent* aManager,
|
|
const ParentBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return CreateFromParams(aManager, aParams);
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::Create(PBackgroundParent* aManager,
|
|
const ParentBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
return CreateFromParams(aManager, aParams);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<BlobImpl>
|
|
BlobParent::GetBlobImplForID(const nsID& aID)
|
|
{
|
|
if (NS_WARN_IF(gProcessType != GeckoProcessType_Default)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<IDTableEntry> idTableEntry = IDTableEntry::Get(aID);
|
|
if (NS_WARN_IF(!idTableEntry)) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<BlobImpl> blobImpl = idTableEntry->GetBlobImpl();
|
|
MOZ_ASSERT(blobImpl);
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
// static
|
|
template <class ParentManagerType>
|
|
BlobParent*
|
|
BlobParent::GetOrCreateFromImpl(ParentManagerType* aManager,
|
|
BlobImpl* aBlobImpl)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
MOZ_ASSERT(!nsCOMPtr<PIBlobImplSnapshot>(do_QueryInterface(aBlobImpl)));
|
|
|
|
// If the blob represents a remote blob for this manager then we can simply
|
|
// pass its actor back here.
|
|
if (nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryInterface(aBlobImpl)) {
|
|
BlobParent* actor = MaybeGetActorFromRemoteBlob(remoteBlob, aManager);
|
|
if (actor) {
|
|
return actor;
|
|
}
|
|
}
|
|
|
|
// All blobs shared between threads or processes must be immutable.
|
|
if (NS_WARN_IF(NS_FAILED(aBlobImpl->SetMutable(false)))) {
|
|
return nullptr;
|
|
}
|
|
|
|
AnyBlobConstructorParams blobParams;
|
|
|
|
if (ActorManagerIsSameProcess(aManager)) {
|
|
RefPtr<BlobImpl> sameProcessImpl = aBlobImpl;
|
|
auto addRefedBlobImpl =
|
|
reinterpret_cast<intptr_t>(sameProcessImpl.forget().take());
|
|
|
|
blobParams = SameProcessBlobConstructorParams(addRefedBlobImpl);
|
|
} else {
|
|
if (aBlobImpl->IsSizeUnknown() || aBlobImpl->IsDateUnknown()) {
|
|
// We don't want to call GetSize or GetLastModifiedDate yet since that may
|
|
// stat a file on the this thread. Instead we'll learn the size lazily
|
|
// from the other side.
|
|
blobParams = MysteryBlobConstructorParams();
|
|
} else {
|
|
nsString contentType;
|
|
aBlobImpl->GetType(contentType);
|
|
|
|
ErrorResult rv;
|
|
uint64_t length = aBlobImpl->GetSize(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
if (aBlobImpl->IsFile()) {
|
|
nsString name;
|
|
aBlobImpl->GetName(name);
|
|
|
|
int64_t modDate = aBlobImpl->GetLastModified(rv);
|
|
MOZ_ASSERT(!rv.Failed());
|
|
|
|
blobParams =
|
|
FileBlobConstructorParams(name, contentType, length, modDate,
|
|
void_t());
|
|
} else {
|
|
blobParams = NormalBlobConstructorParams(contentType, length, void_t());
|
|
}
|
|
}
|
|
}
|
|
|
|
nsID id;
|
|
MOZ_ALWAYS_SUCCEEDS(gUUIDGenerator->GenerateUUIDInPlace(&id));
|
|
|
|
RefPtr<IDTableEntry> idTableEntry =
|
|
IDTableEntry::GetOrCreate(id, ActorManagerProcessID(aManager), aBlobImpl);
|
|
MOZ_ASSERT(idTableEntry);
|
|
|
|
BlobParent* actor = new BlobParent(aManager, idTableEntry);
|
|
|
|
ChildBlobConstructorParams params(id, blobParams);
|
|
if (NS_WARN_IF(!aManager->SendPBlobConstructor(actor, params))) {
|
|
return nullptr;
|
|
}
|
|
|
|
return actor;
|
|
}
|
|
|
|
// static
|
|
template <class ParentManagerType>
|
|
BlobParent*
|
|
BlobParent::CreateFromParams(ParentManagerType* aManager,
|
|
const ParentBlobConstructorParams& aParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
const AnyBlobConstructorParams& blobParams = aParams.blobParams();
|
|
|
|
switch (blobParams.type()) {
|
|
case AnyBlobConstructorParams::TMysteryBlobConstructorParams: {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TNormalBlobConstructorParams:
|
|
case AnyBlobConstructorParams::TFileBlobConstructorParams: {
|
|
const OptionalBlobData& optionalBlobData =
|
|
blobParams.type() ==
|
|
AnyBlobConstructorParams::TNormalBlobConstructorParams ?
|
|
blobParams.get_NormalBlobConstructorParams().optionalBlobData() :
|
|
blobParams.get_FileBlobConstructorParams().optionalBlobData();
|
|
|
|
if (NS_WARN_IF(optionalBlobData.type() != OptionalBlobData::TBlobData)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<BlobImpl> blobImpl =
|
|
CreateBlobImpl(aParams,
|
|
optionalBlobData.get_BlobData(),
|
|
ActorManagerIsSameProcess(aManager));
|
|
if (NS_WARN_IF(!blobImpl)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
nsID id;
|
|
MOZ_ALWAYS_SUCCEEDS(gUUIDGenerator->GenerateUUIDInPlace(&id));
|
|
|
|
RefPtr<IDTableEntry> idTableEntry =
|
|
IDTableEntry::Create(id, ActorManagerProcessID(aManager), blobImpl);
|
|
if (NS_WARN_IF(!idTableEntry)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
return new BlobParent(aManager, blobImpl, idTableEntry);
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TSlicedBlobConstructorParams: {
|
|
const SlicedBlobConstructorParams& params =
|
|
blobParams.get_SlicedBlobConstructorParams();
|
|
|
|
if (NS_WARN_IF(params.end() < params.begin())) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
auto* actor =
|
|
const_cast<BlobParent*>(
|
|
static_cast<const BlobParent*>(params.sourceParent()));
|
|
MOZ_ASSERT(actor);
|
|
|
|
RefPtr<BlobImpl> source = actor->GetBlobImpl();
|
|
MOZ_ASSERT(source);
|
|
|
|
ErrorResult rv;
|
|
RefPtr<BlobImpl> slice =
|
|
source->CreateSlice(params.begin(),
|
|
params.end() - params.begin(),
|
|
params.contentType(),
|
|
rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(slice->SetMutable(false));
|
|
|
|
RefPtr<IDTableEntry> idTableEntry =
|
|
IDTableEntry::Create(params.id(),
|
|
ActorManagerProcessID(aManager),
|
|
slice);
|
|
if (NS_WARN_IF(!idTableEntry)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
return new BlobParent(aManager, slice, idTableEntry);
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TKnownBlobConstructorParams: {
|
|
const KnownBlobConstructorParams& params =
|
|
blobParams.get_KnownBlobConstructorParams();
|
|
|
|
RefPtr<IDTableEntry> idTableEntry =
|
|
IDTableEntry::Get(params.id(), ActorManagerProcessID(aManager));
|
|
if (NS_WARN_IF(!idTableEntry)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
return new BlobParent(aManager, idTableEntry);
|
|
}
|
|
|
|
case AnyBlobConstructorParams::TSameProcessBlobConstructorParams: {
|
|
if (NS_WARN_IF(!ActorManagerIsSameProcess(aManager))) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
const SameProcessBlobConstructorParams& params =
|
|
blobParams.get_SameProcessBlobConstructorParams();
|
|
|
|
RefPtr<BlobImpl> blobImpl =
|
|
dont_AddRef(reinterpret_cast<BlobImpl*>(params.addRefedBlobImpl()));
|
|
MOZ_ASSERT(blobImpl);
|
|
|
|
nsID id;
|
|
MOZ_ALWAYS_SUCCEEDS(gUUIDGenerator->GenerateUUIDInPlace(&id));
|
|
|
|
RefPtr<IDTableEntry> idTableEntry =
|
|
IDTableEntry::Create(id, ActorManagerProcessID(aManager), blobImpl);
|
|
MOZ_ASSERT(idTableEntry);
|
|
|
|
return new BlobParent(aManager, blobImpl, idTableEntry);
|
|
}
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown params!");
|
|
}
|
|
|
|
MOZ_CRASH("Should never get here!");
|
|
}
|
|
|
|
// static
|
|
template <class ParentManagerType>
|
|
BlobParent*
|
|
BlobParent::SendSliceConstructor(
|
|
ParentManagerType* aManager,
|
|
const ParentBlobConstructorParams& aParams,
|
|
const ChildBlobConstructorParams& aOtherSideParams)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
BlobParent* newActor = BlobParent::Create(aManager, aParams);
|
|
MOZ_ASSERT(newActor);
|
|
|
|
if (aManager->SendPBlobConstructor(newActor, aOtherSideParams)) {
|
|
return newActor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::MaybeGetActorFromRemoteBlob(nsIRemoteBlob* aRemoteBlob,
|
|
nsIContentParent* aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aRemoteBlob);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
BlobParent* actor = aRemoteBlob->GetBlobParent();
|
|
if (actor && actor->GetContentManager() == aManager) {
|
|
return actor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
// static
|
|
BlobParent*
|
|
BlobParent::MaybeGetActorFromRemoteBlob(nsIRemoteBlob* aRemoteBlob,
|
|
PBackgroundParent* aManager)
|
|
{
|
|
AssertCorrectThreadForManager(aManager);
|
|
MOZ_ASSERT(aRemoteBlob);
|
|
MOZ_ASSERT(aManager);
|
|
|
|
BlobParent* actor = aRemoteBlob->GetBlobParent();
|
|
if (actor && actor->GetBackgroundManager() == aManager) {
|
|
return actor;
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
already_AddRefed<BlobImpl>
|
|
BlobParent::GetBlobImpl()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
|
|
// Remote blobs are held alive until the first call to GetBlobImpl. Thereafter
|
|
// we only hold a weak reference. Normal blobs are held alive until the actor
|
|
// is destroyed.
|
|
if (mRemoteBlobImpl && mOwnsBlobImpl) {
|
|
blobImpl = dont_AddRef(mBlobImpl);
|
|
mOwnsBlobImpl = false;
|
|
} else {
|
|
blobImpl = mBlobImpl;
|
|
}
|
|
|
|
MOZ_ASSERT(blobImpl);
|
|
|
|
return blobImpl.forget();
|
|
}
|
|
|
|
void
|
|
BlobParent::NoteDyingRemoteBlobImpl()
|
|
{
|
|
MOZ_ASSERT(mRemoteBlobImpl);
|
|
MOZ_ASSERT(!mOwnsBlobImpl);
|
|
|
|
// This may be called on any thread due to the fact that RemoteBlobImpl is
|
|
// designed to be passed between threads. We must start the shutdown process
|
|
// on the main thread, so we proxy here if necessary.
|
|
if (!IsOnOwningThread()) {
|
|
nsCOMPtr<nsIRunnable> runnable =
|
|
NewNonOwningRunnableMethod(this, &BlobParent::NoteDyingRemoteBlobImpl);
|
|
|
|
if (mEventTarget) {
|
|
runnable = new CancelableRunnableWrapper(runnable, mEventTarget);
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mEventTarget->Dispatch(runnable,
|
|
NS_DISPATCH_NORMAL));
|
|
} else {
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable));
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
// Must do this before calling Send__delete__ or we'll crash there trying to
|
|
// access a dangling pointer.
|
|
mBlobImpl = nullptr;
|
|
mRemoteBlobImpl = nullptr;
|
|
|
|
Unused << PBlobParent::Send__delete__(this);
|
|
}
|
|
|
|
void
|
|
BlobParent::NoteRunnableCompleted(OpenStreamRunnable* aRunnable)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aRunnable);
|
|
|
|
for (uint32_t count = mOpenStreamRunnables.Length(), index = 0;
|
|
index < count;
|
|
index++) {
|
|
nsRevocableEventPtr<OpenStreamRunnable>& runnable =
|
|
mOpenStreamRunnables[index];
|
|
|
|
if (runnable.get() == aRunnable) {
|
|
runnable.Forget();
|
|
mOpenStreamRunnables.RemoveElementAt(index);
|
|
return;
|
|
}
|
|
}
|
|
|
|
MOZ_CRASH("Runnable not in our array!");
|
|
}
|
|
|
|
bool
|
|
BlobParent::IsOnOwningThread() const
|
|
{
|
|
return EventTargetIsOnCurrentThread(mEventTarget);
|
|
}
|
|
|
|
void
|
|
BlobParent::ActorDestroy(ActorDestroyReason aWhy)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (mRemoteBlobImpl) {
|
|
mRemoteBlobImpl->NoteDyingActor();
|
|
}
|
|
|
|
if (mBlobImpl && mOwnsBlobImpl) {
|
|
mBlobImpl->Release();
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
mBlobImpl = nullptr;
|
|
mRemoteBlobImpl = nullptr;
|
|
mBackgroundManager = nullptr;
|
|
mContentManager = nullptr;
|
|
mOwnsBlobImpl = false;
|
|
#endif
|
|
}
|
|
|
|
PBlobStreamParent*
|
|
BlobParent::AllocPBlobStreamParent(const uint64_t& aStart,
|
|
const uint64_t& aLength)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
if (NS_WARN_IF(mRemoteBlobImpl)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return nullptr;
|
|
}
|
|
|
|
return new InputStreamParent();
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvPBlobStreamConstructor(PBlobStreamParent* aActor,
|
|
const uint64_t& aStart,
|
|
const uint64_t& aLength)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aActor);
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
auto* actor = static_cast<InputStreamParent*>(aActor);
|
|
|
|
// Make sure we can't overflow.
|
|
if (NS_WARN_IF(UINT64_MAX - aLength < aStart)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
ErrorResult errorResult;
|
|
uint64_t blobLength = mBlobImpl->GetSize(errorResult);
|
|
MOZ_ASSERT(!errorResult.Failed());
|
|
|
|
if (NS_WARN_IF(aStart + aLength > blobLength)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
RefPtr<BlobImpl> blobImpl;
|
|
|
|
if (!aStart && aLength == blobLength) {
|
|
blobImpl = mBlobImpl;
|
|
} else {
|
|
nsString type;
|
|
mBlobImpl->GetType(type);
|
|
|
|
blobImpl = mBlobImpl->CreateSlice(aStart, aLength, type, errorResult);
|
|
if (NS_WARN_IF(errorResult.Failed())) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIInputStream> stream;
|
|
blobImpl->GetInternalStream(getter_AddRefs(stream), errorResult);
|
|
if (NS_WARN_IF(errorResult.Failed())) {
|
|
return false;
|
|
}
|
|
|
|
// If the stream is entirely backed by memory then we can serialize and send
|
|
// it immediately.
|
|
if (mBlobImpl->IsMemoryFile()) {
|
|
InputStreamParams params;
|
|
nsTArray<FileDescriptor> fds;
|
|
SerializeInputStream(stream, params, fds);
|
|
|
|
MOZ_ASSERT(params.type() != InputStreamParams::T__None);
|
|
MOZ_ASSERT(fds.IsEmpty());
|
|
|
|
return actor->Destroy(params, void_t());
|
|
}
|
|
|
|
nsCOMPtr<nsIRemoteBlob> remoteBlob = do_QueryInterface(mBlobImpl);
|
|
nsCOMPtr<IPrivateRemoteInputStream> remoteStream;
|
|
if (remoteBlob) {
|
|
remoteStream = do_QueryInterface(stream);
|
|
}
|
|
|
|
// There are three cases in which we can use the stream obtained from the blob
|
|
// directly as our serialized stream:
|
|
//
|
|
// 1. The blob is not a remote blob.
|
|
// 2. The blob is a remote blob that represents this actor.
|
|
// 3. The blob is a remote blob representing a different actor but we
|
|
// already have a non-remote, i.e. serialized, serialized stream.
|
|
//
|
|
// In all other cases we need to be on a background thread before we can get
|
|
// to the real stream.
|
|
nsCOMPtr<nsIIPCSerializableInputStream> serializableStream;
|
|
if (!remoteBlob ||
|
|
remoteBlob->GetBlobParent() == this ||
|
|
!remoteStream) {
|
|
serializableStream = do_QueryInterface(stream);
|
|
if (!serializableStream) {
|
|
MOZ_ASSERT(false, "Must be serializable!");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIThread> target;
|
|
errorResult = NS_NewNamedThread("Blob Opener", getter_AddRefs(target));
|
|
if (NS_WARN_IF(errorResult.Failed())) {
|
|
return false;
|
|
}
|
|
|
|
RefPtr<OpenStreamRunnable> runnable =
|
|
new OpenStreamRunnable(this, actor, stream, serializableStream, target);
|
|
|
|
errorResult = runnable->Dispatch();
|
|
if (NS_WARN_IF(errorResult.Failed())) {
|
|
return false;
|
|
}
|
|
|
|
// nsRevocableEventPtr lacks some of the operators needed for anything nicer.
|
|
*mOpenStreamRunnables.AppendElement() = runnable;
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobParent::DeallocPBlobStreamParent(PBlobStreamParent* aActor)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
|
|
delete static_cast<InputStreamParent*>(aActor);
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvResolveMystery(const ResolveMysteryParams& aParams)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(aParams.type() != ResolveMysteryParams::T__None);
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
switch (aParams.type()) {
|
|
case ResolveMysteryParams::TNormalBlobConstructorParams: {
|
|
const NormalBlobConstructorParams& params =
|
|
aParams.get_NormalBlobConstructorParams();
|
|
|
|
if (NS_WARN_IF(params.length() == UINT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
nsString voidString;
|
|
voidString.SetIsVoid(true);
|
|
|
|
mBlobImpl->SetLazyData(voidString,
|
|
params.contentType(),
|
|
params.length(),
|
|
INT64_MAX);
|
|
return true;
|
|
}
|
|
|
|
case ResolveMysteryParams::TFileBlobConstructorParams: {
|
|
const FileBlobConstructorParams& params =
|
|
aParams.get_FileBlobConstructorParams();
|
|
if (NS_WARN_IF(params.name().IsVoid())) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
if (NS_WARN_IF(params.length() == UINT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
if (NS_WARN_IF(params.modDate() == INT64_MAX)) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
mBlobImpl->SetLazyData(params.name(),
|
|
params.contentType(),
|
|
params.length(),
|
|
params.modDate());
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
MOZ_CRASH("Unknown params!");
|
|
}
|
|
|
|
MOZ_CRASH("Should never get here!");
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvBlobStreamSync(const uint64_t& aStart,
|
|
const uint64_t& aLength,
|
|
InputStreamParams* aParams,
|
|
OptionalFileDescriptorSet* aFDs)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
bool finished = false;
|
|
|
|
{
|
|
// Calling RecvPBlobStreamConstructor() may synchronously delete the actor
|
|
// we pass in so don't touch it outside this block.
|
|
auto* streamActor = new InputStreamParent(&finished, aParams, aFDs);
|
|
|
|
if (NS_WARN_IF(!RecvPBlobStreamConstructor(streamActor, aStart, aLength))) {
|
|
// If RecvPBlobStreamConstructor() returns false then it is our
|
|
// responsibility to destroy the actor.
|
|
delete streamActor;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (finished) {
|
|
// The actor is already dead and we have already set our out params.
|
|
return true;
|
|
}
|
|
|
|
// The actor is alive and will be doing asynchronous work to load the stream.
|
|
// Spin a nested loop here while we wait for it.
|
|
nsIThread* currentThread = NS_GetCurrentThread();
|
|
MOZ_ASSERT(currentThread);
|
|
|
|
while (!finished) {
|
|
MOZ_ALWAYS_TRUE(NS_ProcessNextEvent(currentThread));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvWaitForSliceCreation()
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
// The whole point of this message is to ensure that the sliced blob created
|
|
// by the child has been inserted into our IDTable.
|
|
MOZ_ASSERT(mIDTableEntry);
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
MOZ_ASSERT(sIDTableMutex);
|
|
MutexAutoLock lock(*sIDTableMutex);
|
|
|
|
MOZ_ASSERT(sIDTable);
|
|
MOZ_ASSERT(sIDTable->Contains(mIDTableEntry->ID()));
|
|
}
|
|
#endif
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvGetFileId(int64_t* aFileId)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
if (NS_WARN_IF(!IndexedDatabaseManager::InTestingMode())) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
|
|
*aFileId = mBlobImpl->GetFileId();
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
BlobParent::RecvGetFilePath(nsString* aFilePath)
|
|
{
|
|
AssertIsOnOwningThread();
|
|
MOZ_ASSERT(mBlobImpl);
|
|
MOZ_ASSERT(!mRemoteBlobImpl);
|
|
MOZ_ASSERT(mOwnsBlobImpl);
|
|
|
|
// In desktop e10s the file picker code sends this message.
|
|
|
|
#if defined(MOZ_CHILD_PERMISSIONS) && !defined(MOZ_GRAPHENE)
|
|
if (NS_WARN_IF(!IndexedDatabaseManager::InTestingMode())) {
|
|
ASSERT_UNLESS_FUZZING();
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
nsString filePath;
|
|
ErrorResult rv;
|
|
mBlobImpl->GetMozFullPathInternal(filePath, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
return false;
|
|
}
|
|
|
|
*aFilePath = filePath;
|
|
return true;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* BlobParent::IDTableEntry
|
|
******************************************************************************/
|
|
|
|
BlobParent::
|
|
IDTableEntry::IDTableEntry(const nsID& aID,
|
|
intptr_t aProcessID,
|
|
BlobImpl* aBlobImpl)
|
|
: mID(aID)
|
|
, mProcessID(aProcessID)
|
|
, mBlobImpl(aBlobImpl)
|
|
{
|
|
MOZ_ASSERT(aBlobImpl);
|
|
}
|
|
|
|
BlobParent::
|
|
IDTableEntry::~IDTableEntry()
|
|
{
|
|
MOZ_ASSERT(sIDTableMutex);
|
|
sIDTableMutex->AssertNotCurrentThreadOwns();
|
|
MOZ_ASSERT(sIDTable);
|
|
|
|
{
|
|
MutexAutoLock lock(*sIDTableMutex);
|
|
MOZ_ASSERT(sIDTable->Get(mID) == this);
|
|
|
|
sIDTable->Remove(mID);
|
|
|
|
if (!sIDTable->Count()) {
|
|
sIDTable = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<BlobParent::IDTableEntry>
|
|
BlobParent::
|
|
IDTableEntry::GetOrCreateInternal(const nsID& aID,
|
|
intptr_t aProcessID,
|
|
BlobImpl* aBlobImpl,
|
|
bool aMayCreate,
|
|
bool aMayGet,
|
|
bool aIgnoreProcessID)
|
|
{
|
|
MOZ_ASSERT(gProcessType == GeckoProcessType_Default);
|
|
MOZ_ASSERT(sIDTableMutex);
|
|
sIDTableMutex->AssertNotCurrentThreadOwns();
|
|
|
|
RefPtr<IDTableEntry> entry;
|
|
|
|
{
|
|
MutexAutoLock lock(*sIDTableMutex);
|
|
|
|
if (!sIDTable) {
|
|
if (NS_WARN_IF(!aMayCreate)) {
|
|
return nullptr;
|
|
}
|
|
|
|
sIDTable = new IDTable();
|
|
}
|
|
|
|
entry = sIDTable->Get(aID);
|
|
|
|
if (entry) {
|
|
MOZ_ASSERT_IF(aBlobImpl, entry->GetBlobImpl() == aBlobImpl);
|
|
|
|
if (NS_WARN_IF(!aMayGet)) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!aIgnoreProcessID && NS_WARN_IF(entry->mProcessID != aProcessID)) {
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
if (NS_WARN_IF(!aMayCreate)) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(aBlobImpl);
|
|
|
|
entry = new IDTableEntry(aID, aProcessID, aBlobImpl);
|
|
|
|
sIDTable->Put(aID, entry);
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(entry);
|
|
|
|
return entry.forget();
|
|
}
|
|
|
|
/*******************************************************************************
|
|
* Other stuff
|
|
******************************************************************************/
|
|
|
|
bool
|
|
InputStreamChild::Recv__delete__(const InputStreamParams& aParams,
|
|
const OptionalFileDescriptorSet& aOptionalSet)
|
|
{
|
|
MOZ_ASSERT(mRemoteStream);
|
|
mRemoteStream->AssertIsOnOwningThread();
|
|
|
|
nsTArray<FileDescriptor> fds;
|
|
OptionalFileDescriptorSetToFDs(
|
|
// XXX Fix this somehow...
|
|
const_cast<OptionalFileDescriptorSet&>(aOptionalSet),
|
|
fds);
|
|
|
|
nsCOMPtr<nsIInputStream> stream = DeserializeInputStream(aParams, fds);
|
|
MOZ_ASSERT(stream);
|
|
|
|
mRemoteStream->SetStream(stream);
|
|
return true;
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|