root/chrome/browser/media_galleries/win/snapshot_file_details.cc

DEFINITIONS

1. error_callback
2. bytes_written_
3. set_file_info
4. set_device_file_stream
5. set_optimal_transfer_size
6. IsSnapshotFileWriteComplete
7. AddBytesWritten

// 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.

#include "chrome/browser/media_galleries/win/snapshot_file_details.h"

#include "base/basictypes.h"

///////////////////////////////////////////////////////////////////////////////
//                       SnapshotRequestInfo                                 //
///////////////////////////////////////////////////////////////////////////////

SnapshotRequestInfo::SnapshotRequestInfo(
    const base::FilePath& device_file_path,
    const base::FilePath& snapshot_file_path,
    const MTPDeviceAsyncDelegate::CreateSnapshotFileSuccessCallback&
        success_callback,
    const MTPDeviceAsyncDelegate::ErrorCallback& error_callback)
    : device_file_path(device_file_path),
      snapshot_file_path(snapshot_file_path),
      success_callback(success_callback),
      error_callback(error_callback) {
}

///////////////////////////////////////////////////////////////////////////////
//                       SnapshotFileDetails                                 //
///////////////////////////////////////////////////////////////////////////////

SnapshotFileDetails::SnapshotFileDetails(
    const SnapshotRequestInfo& request_info)
    : request_info_(request_info),
      optimal_transfer_size_(0),
      bytes_written_(0) {
}

SnapshotFileDetails::~SnapshotFileDetails() {
  file_stream_.Release();
}

void SnapshotFileDetails::set_file_info(const base::File::Info& file_info) {
  file_info_ = file_info;
}

void SnapshotFileDetails::set_device_file_stream(
    IStream* file_stream) {
  file_stream_ = file_stream;
}

void SnapshotFileDetails::set_optimal_transfer_size(
    DWORD optimal_transfer_size) {
  optimal_transfer_size_ = optimal_transfer_size;
}

bool SnapshotFileDetails::IsSnapshotFileWriteComplete() const {
  return bytes_written_ == file_info_.size;
}

bool SnapshotFileDetails::AddBytesWritten(DWORD bytes_written) {
  if ((bytes_written == 0) ||
      (bytes_written_ > kuint64max - bytes_written) ||
      (bytes_written_ + bytes_written > file_info_.size))
    return false;

  bytes_written_ += bytes_written;
  return true;
}