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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 "ActiveDOMObject.h"
#include "BufferSource.h"
#include "ExceptionOr.h"
#include "FileHandle.h"
#include "FileSystemSyncAccessHandleIdentifier.h"
#include "IDLTypes.h"
#include <wtf/Deque.h>
#include <wtf/FileSystem.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class FileSystemFileHandle;
template<typename> class DOMPromiseDeferred;
class FileSystemSyncAccessHandle : public ActiveDOMObject, public RefCounted<FileSystemSyncAccessHandle>, public CanMakeWeakPtr<FileSystemSyncAccessHandle> {
public:
struct FilesystemReadWriteOptions {
std::optional<unsigned long long> at;
};
static Ref<FileSystemSyncAccessHandle> create(ScriptExecutionContext&, FileSystemFileHandle&, FileSystemSyncAccessHandleIdentifier, FileHandle&&, uint64_t capacity);
~FileSystemSyncAccessHandle();
ExceptionOr<void> truncate(unsigned long long size);
ExceptionOr<unsigned long long> getSize();
ExceptionOr<void> flush();
ExceptionOr<void> close();
ExceptionOr<unsigned long long> read(BufferSource&&, FilesystemReadWriteOptions);
ExceptionOr<unsigned long long> write(BufferSource&&, FilesystemReadWriteOptions);
void invalidate();
private:
FileSystemSyncAccessHandle(ScriptExecutionContext&, FileSystemFileHandle&, FileSystemSyncAccessHandleIdentifier, FileHandle&&, uint64_t capacity);
using CloseCallback = CompletionHandler<void(ExceptionOr<void>&&)>;
enum class ShouldNotifyBackend : bool { No, Yes };
void closeInternal(ShouldNotifyBackend);
bool requestSpaceForWrite(uint64_t writeOffset, uint64_t writeLength);
// ActiveDOMObject
const char* activeDOMObjectName() const final;
void stop() final;
Ref<FileSystemFileHandle> m_source;
FileSystemSyncAccessHandleIdentifier m_identifier;
FileHandle m_file;
bool m_isClosed { false };
uint64_t m_capacity;
};
} // namespace WebCore
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