| // Copyright (c) 2010 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // Implements PlatformSwitch by reading in the switch file (CHSW) and converting |
| // its contents to an unsigned integer which is bitwise-ANDed with the |
| // subclass-defined bitmask(). |
| |
| #include "platform_switch.h" |
| |
| #include "helpers.h" |
| |
| namespace cros_boot_mode { |
| |
| const char *PlatformSwitch::kPositionText[] = { "disabled", "enabled" }; |
| |
| PlatformSwitch::PlatformSwitch() { } |
| PlatformSwitch::~PlatformSwitch() { } |
| |
| const char *PlatformSwitch::c_str() const { |
| return (value() >= 0 ? kPositionText[value()] : "unsupported"); |
| } |
| |
| int PlatformSwitch::Process(const char *file_contents, size_t length) { |
| int read_int = helpers::to_int(file_contents, length); |
| if (read_int < 0) |
| return kUnsupported; |
| unsigned int position = static_cast<unsigned int>(read_int); |
| return !((position & bitmask()) == 0); |
| } |
| |
| } // namespace cros_boot_mode |