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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef STORAGE_BROWSER_FILE_SYSTEM_SANDBOX_FILE_STREAM_WRITER_H_
#define STORAGE_BROWSER_FILE_SYSTEM_SANDBOX_FILE_STREAM_WRITER_H_
#include <stdint.h>
#include <memory>
#include "base/component_export.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "components/services/storage/public/cpp/quota_error_or.h"
#include "storage/browser/blob/shareable_file_reference.h"
#include "storage/browser/file_system/file_stream_writer.h"
#include "storage/browser/file_system/file_system_url.h"
#include "storage/browser/file_system/task_runner_bound_observer_list.h"
#include "storage/common/file_system/file_system_types.h"
#include "third_party/blink/public/mojom/quota/quota_types.mojom.h"
namespace storage {
class FileSystemContext;
class FileStreamWriter;
class COMPONENT_EXPORT(STORAGE_BROWSER) SandboxFileStreamWriter
: public FileStreamWriter {
public:
SandboxFileStreamWriter(FileSystemContext* file_system_context,
const FileSystemURL& url,
int64_t initial_offset,
const UpdateObserverList& observers);
SandboxFileStreamWriter(const SandboxFileStreamWriter&) = delete;
SandboxFileStreamWriter& operator=(const SandboxFileStreamWriter&) = delete;
~SandboxFileStreamWriter() override;
// FileStreamWriter overrides.
int Write(net::IOBuffer* buf,
int buf_len,
net::CompletionOnceCallback callback) override;
int Cancel(net::CompletionOnceCallback callback) override;
int Flush(FlushMode flush_mode,
net::CompletionOnceCallback callback) override;
// Used only by tests.
void set_default_quota(int64_t quota) { default_quota_ = quota; }
private:
// Performs quota calculation and calls file_writer_->Write().
// Will either return synchronously, or run asynchronously and call
// |write_callback_|.
int WriteInternal(net::IOBuffer* buf, int buf_len);
// Callbacks that are chained for the first write. This eventually calls
// WriteInternal.
void DidCreateSnapshotFile(net::CompletionOnceCallback callback,
base::File::Error file_error,
const base::File::Info& file_info,
const base::FilePath& platform_path,
scoped_refptr<ShareableFileReference> file_ref);
void DidGetBucketSpaceRemaining(
net::CompletionOnceCallback callback,
storage::QuotaErrorOr<int64_t> space_remaining);
void DidInitializeForWrite(net::IOBuffer* buf, int buf_len, int init_status);
// Will call |write_callback_| if set, or return synchronously.
void DidWrite(int write_response);
void DidFlush(net::CompletionOnceCallback callback, int result);
// Stops the in-flight operation, calls |cancel_callback_| and returns true
// if there's a pending cancel request.
bool CancelIfRequested();
scoped_refptr<FileSystemContext> file_system_context_;
FileSystemURL url_;
int64_t initial_offset_;
std::unique_ptr<FileStreamWriter> file_writer_;
net::CompletionOnceCallback write_callback_;
net::CompletionOnceCallback cancel_callback_;
UpdateObserverList observers_;
base::FilePath file_path_;
int64_t file_size_;
int64_t total_bytes_written_;
int64_t allowed_bytes_to_write_;
bool has_pending_operation_;
int64_t default_quota_;
base::WeakPtrFactory<SandboxFileStreamWriter> weak_factory_{this};
};
} // namespace storage
#endif // STORAGE_BROWSER_FILE_SYSTEM_SANDBOX_FILE_STREAM_WRITER_H_
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