Create fileapi/ subdirectory under c/b/cros/drive.

chrome/browser/chromeos/drive/fileapi_worker.h

-// Copyright 2013 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.
-//
-// This file provides the core implementation of fileapi methods.
-// The functions should be called on UI thread.
-// Note that most method invocation of fileapi is done on IO thread. The gap is
-// filled by FileSystemProxy.
-// Also, the order of arguments for the functions which take FileSystemInterface
-// at the last is intentional. The instance of FileSystemInterface should be
-// accessible only on UI thread, but arguments are passed on IO thread.
-// So, here is an intended use case:
-//   1) Bind arguments on IO thread. Then a callback instance whose type is
-//      Callback<void(FileSysstemInterface*)> is created.
-//   2) Post the task to the UI thread.
-//   3) On UI thread, check if the instance of FileSystemInterface is alive or
-//      not. If yes, Run the callback with it.
-
-#ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WORKER_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WORKER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/memory/weak_ptr.h"
-#include "base/platform_file.h"
-#include "chrome/browser/chromeos/drive/file_errors.h"
-#include "webkit/common/blob/scoped_file.h"
-
-namespace base {
-class FilePath;
-}  // namespace base
-
-namespace fileapi {
-struct DirectoryEntry;
-}  // namespace fileapi
-
-namespace drive {
-
-class FileSystemInterface;
-
-namespace fileapi_internal {
-
-typedef base::Callback<FileSystemInterface*()> FileSystemGetter;
-
-typedef base::Callback<
-    void(base::File::Error result)> StatusCallback;
-typedef base::Callback<
-    void(base::File::Error result,
-         const base::File::Info& file_info)> GetFileInfoCallback;
-typedef base::Callback<
-    void(base::File::Error result,
-         const std::vector<fileapi::DirectoryEntry>& file_list,
-         bool has_more)> ReadDirectoryCallback;
-typedef base::Callback<
-    void(base::File::Error result,
-         const base::File::Info& file_info,
-         const base::FilePath& snapshot_file_path,
-         webkit_blob::ScopedFile::ScopeOutPolicy scope_out_policy)>
-    CreateSnapshotFileCallback;
-typedef base::Callback<
-    void(base::File::Error result,
-         const base::FilePath& snapshot_file_path,
-         const base::Closure& close_callback)>
-    CreateWritableSnapshotFileCallback;
-typedef base::Callback<
-    void(base::File::Error result,
-         base::PlatformFile platform_file,
-         const base::Closure& close_callback)> OpenFileCallback;
-
-// Runs |file_system_getter| to obtain the instance of FileSystemInstance,
-// and then runs |callback| with it.
-// If |file_system_getter| returns NULL, runs |error_callback| instead.
-// This function must be called on UI thread.
-// |file_system_getter| and |callback| must not be null, but
-// |error_callback| can be null (if no operation is necessary for error
-// case).
-void RunFileSystemCallback(
-    const FileSystemGetter& file_system_getter,
-    const base::Callback<void(FileSystemInterface*)>& callback,
-    const base::Closure& error_callback);
-
-// Returns the metadata info of the file at |file_path|.
-// Called from FileSystemProxy::GetFileInfo().
-void GetFileInfo(const base::FilePath& file_path,
-                 const GetFileInfoCallback& callback,
-                 FileSystemInterface* file_system);
-
-// Copies a file from |src_file_path| to |dest_file_path|.
-// Called from FileSystemProxy::Copy().
-void Copy(const base::FilePath& src_file_path,
-          const base::FilePath& dest_file_path,
-          bool preserve_last_modified,
-          const StatusCallback& callback,
-          FileSystemInterface* file_system);
-
-// Moves a file from |src_file_path| to |dest_file_path|.
-// Called from FileSystemProxy::Move().
-void Move(const base::FilePath& src_file_path,
-          const base::FilePath& dest_file_path,
-          bool preserve_last_modified,
-          const StatusCallback& callback,
-          FileSystemInterface* file_system);
-
-
-// Copies a file at |src_foreign_file_path|, which is not managed by Drive File
-// System, to |dest_file_path|.
-void CopyInForeignFile(const base::FilePath& src_foreign_file_path,
-                       const base::FilePath& dest_file_path,
-                       const StatusCallback& callback,
-                       FileSystemInterface* file_system);
-
-// Reads the contents of the directory at |file_path|.
-// Called from FileSystemProxy::ReadDirectory().
-void ReadDirectory(const base::FilePath& file_path,
-                   const ReadDirectoryCallback& callback,
-                   FileSystemInterface* file_system);
-
-// Removes a file at |file_path|. Called from FileSystemProxy::Remove().
-void Remove(const base::FilePath& file_path,
-            bool is_recursive,
-            const StatusCallback& callback,
-            FileSystemInterface* file_system);
-
-// Creates a new directory at |file_path|.
-// Called from FileSystemProxy::CreateDirectory().
-void CreateDirectory(const base::FilePath& file_path,
-                     bool is_exclusive,
-                     bool is_recursive,
-                     const StatusCallback& callback,
-                     FileSystemInterface* file_system);
-
-// Creates a new file at |file_path|.
-// Called from FileSystemProxy::CreateFile().
-void CreateFile(const base::FilePath& file_path,
-                bool is_exclusive,
-                const StatusCallback& callback,
-                FileSystemInterface* file_system);
-
-// Truncates the file at |file_path| to |length| bytes.
-// Called from FileSystemProxy::Truncate().
-void Truncate(const base::FilePath& file_path,
-              int64 length,
-              const StatusCallback& callback,
-              FileSystemInterface* file_system);
-
-// Creates a snapshot for the file at |file_path|.
-// Called from FileSystemProxy::CreateSnapshotFile().
-void CreateSnapshotFile(const base::FilePath& file_path,
-                        const CreateSnapshotFileCallback& callback,
-                        FileSystemInterface* file_system);
-
-// Creates a writable snapshot for the file at |file_path|.
-// After writing operation is done, |close_callback| must be called.
-void CreateWritableSnapshotFile(
-    const base::FilePath& file_path,
-    const CreateWritableSnapshotFileCallback& callback,
-    FileSystemInterface* file_system);
-
-// Opens the file at |file_path| with options |file_flags|.
-// Called from FileSystemProxy::OpenFile.
-void OpenFile(const base::FilePath& file_path,
-              int file_flags,
-              const OpenFileCallback& callback,
-              FileSystemInterface* file_system);
-
-// Changes timestamp of the file at |file_path| to |last_access_time| and
-// |last_modified_time|. Called from FileSystemProxy::TouchFile().
-void TouchFile(const base::FilePath& file_path,
-               const base::Time& last_access_time,
-               const base::Time& last_modified_time,
-               const StatusCallback& callback,
-               FileSystemInterface* file_system);
-
-}  // namespace fileapi_internal
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WORKER_H_