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/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "FileHandle.h"
#include "FileSystemHandleIdentifier.h"
#include "FileSystemSyncAccessHandleIdentifier.h"
#include "FileSystemWritableFileStreamIdentifier.h"
#include "FileSystemWriteCloseReason.h"
#include "FileSystemWriteCommandType.h"
#include "ProcessQualified.h"
#include "ScriptExecutionContextIdentifier.h"
#include <wtf/CompletionHandler.h>
#include <wtf/HashMap.h>
#include <wtf/ThreadSafeRefCounted.h>
namespace WebCore {
class FileSystemDirectoryHandle;
class FileSystemFileHandle;
class FileHandle;
class FileSystemHandleCloseScope;
class FileSystemSyncAccessHandle;
class FileSystemWritableFileStream;
template<typename> class ExceptionOr;
class FileSystemStorageConnection : public ThreadSafeRefCounted<FileSystemStorageConnection> {
public:
virtual ~FileSystemStorageConnection() { }
using SameEntryCallback = CompletionHandler<void(ExceptionOr<bool>&&)>;
using GetHandleCallback = CompletionHandler<void(ExceptionOr<Ref<FileSystemHandleCloseScope>>&&)>;
using ResolveCallback = CompletionHandler<void(ExceptionOr<Vector<String>>&&)>;
struct SyncAccessHandleInfo {
FileSystemSyncAccessHandleIdentifier identifier;
FileHandle file;
uint64_t capacity { 0 };
SyncAccessHandleInfo isolatedCopy() && { return { identifier, WTFMove(file).isolatedCopy(), capacity }; }
};
using GetAccessHandleCallback = CompletionHandler<void(ExceptionOr<SyncAccessHandleInfo>&&)>;
using VoidCallback = CompletionHandler<void(ExceptionOr<void>&&)>;
using EmptyCallback = CompletionHandler<void()>;
using GetHandleNamesCallback = CompletionHandler<void(ExceptionOr<Vector<String>>&&)>;
using StringCallback = CompletionHandler<void(ExceptionOr<String>&&)>;
using StreamCallback = CompletionHandler<void(ExceptionOr<FileSystemWritableFileStreamIdentifier>&&)>;
using RequestCapacityCallback = CompletionHandler<void(std::optional<uint64_t>&&)>;
virtual bool isWorker() const { return false; }
virtual void closeHandle(FileSystemHandleIdentifier) = 0;
virtual void isSameEntry(FileSystemHandleIdentifier, FileSystemHandleIdentifier, SameEntryCallback&&) = 0;
virtual void move(FileSystemHandleIdentifier, FileSystemHandleIdentifier, const String& newName, VoidCallback&&) = 0;
virtual void getFileHandle(FileSystemHandleIdentifier, const String& name, bool createIfNecessary, GetHandleCallback&&) = 0;
virtual void getDirectoryHandle(FileSystemHandleIdentifier, const String& name, bool createIfNecessary, GetHandleCallback&&) = 0;
virtual void removeEntry(FileSystemHandleIdentifier, const String& name, bool deleteRecursively, VoidCallback&&) = 0;
virtual void resolve(FileSystemHandleIdentifier, FileSystemHandleIdentifier, ResolveCallback&&) = 0;
virtual void getFile(FileSystemHandleIdentifier, StringCallback&&) = 0;
virtual void createSyncAccessHandle(FileSystemHandleIdentifier, GetAccessHandleCallback&&) = 0;
virtual void closeSyncAccessHandle(FileSystemHandleIdentifier, FileSystemSyncAccessHandleIdentifier, EmptyCallback&&) = 0;
virtual void requestNewCapacityForSyncAccessHandle(FileSystemHandleIdentifier, FileSystemSyncAccessHandleIdentifier, uint64_t newCapacity, RequestCapacityCallback&&) = 0;
virtual void registerSyncAccessHandle(FileSystemSyncAccessHandleIdentifier, ScriptExecutionContextIdentifier) = 0;
virtual void unregisterSyncAccessHandle(FileSystemSyncAccessHandleIdentifier) = 0;
virtual void invalidateAccessHandle(WebCore::FileSystemSyncAccessHandleIdentifier) = 0;
virtual void createWritable(ScriptExecutionContextIdentifier, FileSystemHandleIdentifier, bool keepExistingData, StreamCallback&&) = 0;
virtual void closeWritable(FileSystemHandleIdentifier, FileSystemWritableFileStreamIdentifier, FileSystemWriteCloseReason, VoidCallback&&) = 0;
virtual void executeCommandForWritable(FileSystemHandleIdentifier, FileSystemWritableFileStreamIdentifier, FileSystemWriteCommandType, std::optional<uint64_t> position, std::optional<uint64_t> size, std::span<const uint8_t> dataBytes, bool hasDataError, VoidCallback&&) = 0;
virtual void getHandleNames(FileSystemHandleIdentifier, GetHandleNamesCallback&&) = 0;
virtual void getHandle(FileSystemHandleIdentifier, const String& name, GetHandleCallback&&) = 0;
WEBCORE_EXPORT bool errorFileSystemWritable(FileSystemWritableFileStreamIdentifier);
void registerFileSystemWritable(FileSystemWritableFileStreamIdentifier, FileSystemWritableFileStream&);
void unregisterFileSystemWritable(FileSystemWritableFileStreamIdentifier);
private:
HashMap<FileSystemWritableFileStreamIdentifier, WeakPtr<FileSystemWritableFileStream>> m_writables;
};
} // namespace WebCore
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