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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "IDBMutableFile.h"
#include "ActorsChild.h"
#include "IDBDatabase.h"
#include "IDBFactory.h"
#include "IDBFileHandle.h"
#include "IDBFileRequest.h"
#include "IndexedDatabaseManager.h"
#include "MainThreadUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/IDBMutableFileBinding.h"
#include "mozilla/dom/indexedDB/PBackgroundIDBSharedTypes.h"
#include "mozilla/dom/quota/FileStreams.h"
#include "mozilla/dom/quota/QuotaManager.h"
#include "mozilla/ipc/BackgroundUtils.h"
#include "mozilla/ipc/PBackgroundSharedTypes.h"
#include "nsContentUtils.h"
#include "nsDebug.h"
#include "nsError.h"
#include "ReportInternalError.h"
namespace mozilla {
namespace dom {
using namespace mozilla::dom::indexedDB;
using namespace mozilla::dom::quota;
IDBMutableFile::IDBMutableFile(IDBDatabase* aDatabase,
BackgroundMutableFileChild* aActor,
const nsAString& aName, const nsAString& aType)
: DOMEventTargetHelper(aDatabase),
mDatabase(aDatabase),
mBackgroundActor(aActor),
mName(aName),
mType(aType),
mInvalidated(false) {
MOZ_ASSERT(aDatabase);
aDatabase->AssertIsOnOwningThread();
MOZ_ASSERT(aActor);
mDatabase->NoteLiveMutableFile(this);
}
IDBMutableFile::~IDBMutableFile() {
AssertIsOnOwningThread();
mDatabase->NoteFinishedMutableFile(this);
if (mBackgroundActor) {
mBackgroundActor->SendDeleteMeInternal();
MOZ_ASSERT(!mBackgroundActor, "SendDeleteMeInternal should have cleared!");
}
}
#ifdef DEBUG
void IDBMutableFile::AssertIsOnOwningThread() const {
MOZ_ASSERT(mDatabase);
mDatabase->AssertIsOnOwningThread();
}
#endif // DEBUG
int64_t IDBMutableFile::GetFileId() const {
AssertIsOnOwningThread();
int64_t fileId;
if (!mBackgroundActor ||
NS_WARN_IF(!mBackgroundActor->SendGetFileId(&fileId))) {
return -1;
}
return fileId;
}
void IDBMutableFile::Invalidate() {
AssertIsOnOwningThread();
MOZ_ASSERT(!mInvalidated);
mInvalidated = true;
AbortFileHandles();
}
void IDBMutableFile::RegisterFileHandle(IDBFileHandle* aFileHandle) {
AssertIsOnOwningThread();
MOZ_ASSERT(aFileHandle);
aFileHandle->AssertIsOnOwningThread();
MOZ_ASSERT(!mFileHandles.Contains(aFileHandle));
mFileHandles.PutEntry(aFileHandle);
}
void IDBMutableFile::UnregisterFileHandle(IDBFileHandle* aFileHandle) {
AssertIsOnOwningThread();
MOZ_ASSERT(aFileHandle);
aFileHandle->AssertIsOnOwningThread();
MOZ_ASSERT(mFileHandles.Contains(aFileHandle));
mFileHandles.RemoveEntry(aFileHandle);
}
void IDBMutableFile::AbortFileHandles() {
AssertIsOnOwningThread();
if (!mFileHandles.Count()) {
return;
}
nsTArray<RefPtr<IDBFileHandle>> fileHandlesToAbort;
fileHandlesToAbort.SetCapacity(mFileHandles.Count());
for (const auto& entry : mFileHandles) {
IDBFileHandle* const fileHandle = entry.GetKey();
MOZ_ASSERT(fileHandle);
fileHandle->AssertIsOnOwningThread();
if (!fileHandle->IsDone()) {
fileHandlesToAbort.AppendElement(fileHandle);
}
}
MOZ_ASSERT(fileHandlesToAbort.Length() <= mFileHandles.Count());
if (fileHandlesToAbort.IsEmpty()) {
return;
}
for (const auto& fileHandle : fileHandlesToAbort) {
MOZ_ASSERT(fileHandle);
fileHandle->Abort();
}
}
IDBDatabase* IDBMutableFile::Database() const {
AssertIsOnOwningThread();
return mDatabase;
}
RefPtr<IDBFileHandle> IDBMutableFile::Open(FileMode aMode,
ErrorResult& aError) {
AssertIsOnOwningThread();
if (QuotaManager::IsShuttingDown() || mDatabase->IsClosed() || !GetOwner()) {
aError.Throw(NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR);
return nullptr;
}
auto fileHandle = IDBFileHandle::Create(this, aMode);
if (NS_WARN_IF(!fileHandle)) {
aError.Throw(NS_ERROR_DOM_FILEHANDLE_UNKNOWN_ERR);
return nullptr;
}
BackgroundFileHandleChild* actor = new BackgroundFileHandleChild(fileHandle);
MOZ_ALWAYS_TRUE(
mBackgroundActor->SendPBackgroundFileHandleConstructor(actor, aMode));
fileHandle->SetBackgroundActor(actor);
return fileHandle;
}
NS_IMPL_ADDREF_INHERITED(IDBMutableFile, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(IDBMutableFile, DOMEventTargetHelper)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBMutableFile)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBMutableFile)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBMutableFile,
DOMEventTargetHelper)
tmp->AssertIsOnOwningThread();
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDatabase)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBMutableFile,
DOMEventTargetHelper)
tmp->AssertIsOnOwningThread();
// Don't unlink mDatabase!
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
JSObject* IDBMutableFile::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return IDBMutableFile_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla