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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef STORAGE_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_
#define STORAGE_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_
#include <stdint.h>
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "storage/browser/blob/shareable_file_reference.h"
#include "storage/browser/fileapi/file_stream_writer.h"
#include "storage/browser/fileapi/file_system_url.h"
#include "storage/browser/fileapi/task_runner_bound_observer_list.h"
#include "storage/browser/storage_browser_export.h"
#include "storage/common/fileapi/file_system_types.h"
#include "storage/common/quota/quota_types.h"
#include "url/gurl.h"
namespace storage {
class FileSystemContext;
class FileSystemQuotaUtil;
class FileStreamWriter;
class STORAGE_EXPORT SandboxFileStreamWriter
: public NON_EXPORTED_BASE(FileStreamWriter) {
public:
SandboxFileStreamWriter(FileSystemContext* file_system_context,
const FileSystemURL& url,
int64_t initial_offset,
const UpdateObserverList& observers);
~SandboxFileStreamWriter() override;
// FileStreamWriter overrides.
int Write(net::IOBuffer* buf,
int buf_len,
const net::CompletionCallback& callback) override;
int Cancel(const net::CompletionCallback& callback) override;
int Flush(const net::CompletionCallback& callback) override;
// Used only by tests.
void set_default_quota(int64_t quota) { default_quota_ = quota; }
private:
// Performs quota calculation and calls local_file_writer_->Write().
int WriteInternal(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback);
// Callbacks that are chained for the first write. This eventually calls
// WriteInternal.
void DidCreateSnapshotFile(
const net::CompletionCallback& callback,
base::File::Error file_error,
const base::File::Info& file_info,
const base::FilePath& platform_path,
const scoped_refptr<storage::ShareableFileReference>& file_ref);
void DidGetUsageAndQuota(const net::CompletionCallback& callback,
storage::QuotaStatusCode status,
int64_t usage,
int64_t quota);
void DidInitializeForWrite(net::IOBuffer* buf, int buf_len,
const net::CompletionCallback& callback,
int init_status);
void DidWrite(const net::CompletionCallback& callback, int write_response);
// 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_;
scoped_ptr<FileStreamWriter> local_file_writer_;
net::CompletionCallback 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_;
DISALLOW_COPY_AND_ASSIGN(SandboxFileStreamWriter);
};
} // namespace storage
#endif // STORAGE_BROWSER_FILEAPI_SANDBOX_FILE_STREAM_WRITER_H_