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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/. */
#ifndef DOM_FS_FILESYSTEMSYNCACCESSHANDLE_H_
#define DOM_FS_FILESYSTEMSYNCACCESSHANDLE_H_
#include "mozilla/dom/PFileSystemManager.h"
#include "mozilla/dom/quota/ForwardDecls.h"
#include "nsCOMPtr.h"
#include "nsISupports.h"
#include "nsWrapperCache.h"
class nsIGlobalObject;
namespace mozilla {
class ErrorResult;
class TaskQueue;
namespace dom {
class FileSystemAccessHandleChild;
struct FileSystemReadWriteOptions;
class FileSystemManager;
class MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer;
class Promise;
class StrongWorkerRef;
class FileSystemSyncAccessHandle final : public nsISupports,
public nsWrapperCache {
public:
enum struct State : uint8_t { Initial = 0, Open, Closing, Closed };
static Result<RefPtr<FileSystemSyncAccessHandle>, nsresult> Create(
nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
RefPtr<FileSystemAccessHandleChild> aActor,
mozilla::ipc::RandomAccessStreamParams&& aStreamParams,
const fs::FileSystemEntryMetadata& aMetadata);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(FileSystemSyncAccessHandle)
void LastRelease();
void ClearActor();
bool IsOpen() const;
bool IsClosing() const;
bool IsClosed() const;
[[nodiscard]] RefPtr<BoolPromise> BeginClose();
[[nodiscard]] RefPtr<BoolPromise> OnClose();
// WebIDL Boilerplate
nsIGlobalObject* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL Interface
uint64_t Read(
const MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer& aBuffer,
const FileSystemReadWriteOptions& aOptions, ErrorResult& aRv);
uint64_t Write(
const MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer& aBuffer,
const FileSystemReadWriteOptions& aOptions, ErrorResult& aRv);
void Truncate(uint64_t aSize, ErrorResult& aError);
uint64_t GetSize(ErrorResult& aError);
void Flush(ErrorResult& aError);
void Close();
private:
FileSystemSyncAccessHandle(
nsIGlobalObject* aGlobal, RefPtr<FileSystemManager>& aManager,
RefPtr<FileSystemAccessHandleChild> aActor,
RefPtr<TaskQueue> aIOTaskQueue,
mozilla::ipc::RandomAccessStreamParams&& aStreamParams,
const fs::FileSystemEntryMetadata& aMetadata);
virtual ~FileSystemSyncAccessHandle();
uint64_t ReadOrWrite(
const MaybeSharedArrayBufferViewOrMaybeSharedArrayBuffer& aBuffer,
const FileSystemReadWriteOptions& aOptions, const bool aRead,
ErrorResult& aRv);
nsresult EnsureStream();
nsCOMPtr<nsIGlobalObject> mGlobal;
RefPtr<FileSystemManager> mManager;
RefPtr<FileSystemAccessHandleChild> mActor;
RefPtr<TaskQueue> mIOTaskQueue;
nsCOMPtr<nsIRandomAccessStream> mStream;
RefPtr<StrongWorkerRef> mWorkerRef;
MozPromiseHolder<BoolPromise> mClosePromiseHolder;
mozilla::ipc::RandomAccessStreamParams mStreamParams;
const fs::FileSystemEntryMetadata mMetadata;
State mState;
};
} // namespace dom
} // namespace mozilla
#endif // DOM_FS_FILESYSTEMSYNCACCESSHANDLE_H_
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