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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_FILESYSTEMWRITABLEFILESTREAM_H_
#define DOM_FS_FILESYSTEMWRITABLEFILESTREAM_H_
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/MozPromise.h"
#include "mozilla/dom/FlippedOnce.h"
#include "mozilla/dom/PFileSystemManager.h"
#include "mozilla/dom/WritableStream.h"
#include "mozilla/dom/quota/ForwardDecls.h"
class nsIGlobalObject;
class nsIRandomAccessStream;
namespace mozilla {
template <typename T>
class Buffer;
class ErrorResult;
class TaskQueue;
namespace ipc {
class RandomAccessStreamParams;
}
namespace dom {
class ArrayBufferViewOrArrayBufferOrBlobOrUTF8StringOrWriteParams;
class Blob;
class FileSystemManager;
class FileSystemWritableFileStreamChild;
class OwningArrayBufferViewOrArrayBufferOrBlobOrUSVString;
class Promise;
class StrongWorkerRef;
namespace fs {
class FileSystemThreadSafeStreamOwner;
}
class FileSystemWritableFileStream final : public WritableStream {
public:
using WriteDataPromise =
MozPromise<Maybe<int64_t>, CopyableErrorResult, /* IsExclusive */ true>;
static Result<RefPtr<FileSystemWritableFileStream>, nsresult> Create(
const nsCOMPtr<nsIGlobalObject>& aGlobal,
RefPtr<FileSystemManager>& aManager,
mozilla::ipc::RandomAccessStreamParams&& aStreamParams,
RefPtr<FileSystemWritableFileStreamChild> aActor,
const fs::FileSystemEntryMetadata& aMetadata);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(FileSystemWritableFileStream,
WritableStream)
void LastRelease() override;
void ClearActor();
class Command;
RefPtr<Command> CreateCommand();
bool IsCommandActive() const;
bool IsOpen() const;
bool IsFinishing() const;
bool IsDone() const;
[[nodiscard]] RefPtr<BoolPromise> BeginAbort();
[[nodiscard]] RefPtr<BoolPromise> BeginClose();
[[nodiscard]] RefPtr<BoolPromise> OnDone();
already_AddRefed<Promise> Write(JSContext* aCx, JS::Handle<JS::Value> aChunk,
ErrorResult& aError);
// WebIDL Boilerplate
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
// WebIDL Interface
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Write(
const ArrayBufferViewOrArrayBufferOrBlobOrUTF8StringOrWriteParams& aData,
ErrorResult& aError);
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Seek(uint64_t aPosition,
ErrorResult& aError);
MOZ_CAN_RUN_SCRIPT already_AddRefed<Promise> Truncate(uint64_t aSize,
ErrorResult& aError);
private:
class CloseHandler;
FileSystemWritableFileStream(
const nsCOMPtr<nsIGlobalObject>& aGlobal,
RefPtr<FileSystemManager>& aManager,
mozilla::ipc::RandomAccessStreamParams&& aStreamParams,
RefPtr<FileSystemWritableFileStreamChild> aActor,
already_AddRefed<TaskQueue> aTaskQueue,
const fs::FileSystemEntryMetadata& aMetadata);
virtual ~FileSystemWritableFileStream();
[[nodiscard]] RefPtr<BoolPromise> BeginFinishing(bool aShouldAbort);
RefPtr<WriteDataPromise> Write(
ArrayBufferViewOrArrayBufferOrBlobOrUTF8StringOrWriteParams& aData);
template <typename T>
RefPtr<Int64Promise> Write(const T& aData, const Maybe<uint64_t> aPosition);
RefPtr<Int64Promise> WriteImpl(nsCOMPtr<nsIInputStream> aInputStream,
const Maybe<uint64_t> aPosition);
RefPtr<BoolPromise> Seek(uint64_t aPosition);
RefPtr<BoolPromise> Truncate(uint64_t aSize);
nsresult EnsureStream();
void NoteFinishedCommand();
[[nodiscard]] RefPtr<BoolPromise> Finish();
RefPtr<FileSystemManager> mManager;
RefPtr<FileSystemWritableFileStreamChild> mActor;
RefPtr<TaskQueue> mTaskQueue;
RefPtr<fs::FileSystemThreadSafeStreamOwner> mStreamOwner;
RefPtr<StrongWorkerRef> mWorkerRef;
mozilla::ipc::RandomAccessStreamParams mStreamParams;
fs::FileSystemEntryMetadata mMetadata;
RefPtr<CloseHandler> mCloseHandler;
MozPromiseHolder<BoolPromise> mFinishPromiseHolder;
bool mCommandActive;
};
} // namespace dom
} // namespace mozilla
#endif // DOM_FS_FILESYSTEMWRITABLEFILESTREAM_H_
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