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