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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

include protocol PBackgroundFileHandle;
include protocol PPendingIPCBlob;

using struct mozilla::void_t
  from "ipc/IPCMessageUtils.h";

namespace mozilla {
namespace dom {

struct FileRequestMetadata
{
  uint64_t? size;
  int64_t? lastModified;
};

struct FileRequestGetMetadataResponse
{
  FileRequestMetadata metadata;
};

struct FileRequestReadResponse
{
  nsCString data;
};

struct FileRequestWriteResponse
{
};

struct FileRequestTruncateResponse
{
};

struct FileRequestFlushResponse
{
};

struct FileRequestGetFileResponse
{
  PPendingIPCBlob file;
  FileRequestMetadata metadata;
};

union FileRequestResponse
{
  nsresult;
  FileRequestGetMetadataResponse;
  FileRequestReadResponse;
  FileRequestWriteResponse;
  FileRequestTruncateResponse;
  FileRequestFlushResponse;
  FileRequestGetFileResponse;
};

protocol PBackgroundFileRequest
{
  manager PBackgroundFileHandle;

child:
  async __delete__(FileRequestResponse response);

  async Progress(uint64_t progress,
                 uint64_t progressMax);
};

} // namespace dom
} // namespace mozilla