device/serial/serial_device_enumerator_mac.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "device/serial/serial_device_enumerator_mac.h"
   6
   7 #include "base/files/file_enumerator.h"
   8 #include "base/files/file_path.h"
   9 #include "base/files/file_util.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/strings/string_util.h"
  12
  13 namespace device {
  14
  15 // static
  16 scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
  17   return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorMac());
  18 }
  19
  20 SerialDeviceEnumeratorMac::SerialDeviceEnumeratorMac() {}
  21
  22 SerialDeviceEnumeratorMac::~SerialDeviceEnumeratorMac() {}
  23
  24 // TODO(rockot): Use IOKit to enumerate serial interfaces.
  25 mojo::Array<serial::DeviceInfoPtr> SerialDeviceEnumeratorMac::GetDevices() {
  26   const base::FilePath kDevRoot("/dev");
  27   const int kFilesAndSymLinks =
  28       base::FileEnumerator::FILES | base::FileEnumerator::SHOW_SYM_LINKS;
  29
  30   std::set<std::string> valid_patterns;
  31   valid_patterns.insert("/dev/*Bluetooth*");
  32   valid_patterns.insert("/dev/*Modem*");
  33   valid_patterns.insert("/dev/*bluetooth*");
  34   valid_patterns.insert("/dev/*modem*");
  35   valid_patterns.insert("/dev/*serial*");
  36   valid_patterns.insert("/dev/tty.*");
  37   valid_patterns.insert("/dev/cu.*");
  38
  39   mojo::Array<serial::DeviceInfoPtr> devices(0);
  40   base::FileEnumerator enumerator(kDevRoot, false, kFilesAndSymLinks);
  41   do {
  42     const base::FilePath next_device_path(enumerator.Next());
  43     const std::string next_device = next_device_path.value();
  44     if (next_device.empty())
  45       break;
  46
  47     std::set<std::string>::const_iterator i = valid_patterns.begin();
  48     for (; i != valid_patterns.end(); ++i) {
  49       if (MatchPattern(next_device, *i)) {
  50         serial::DeviceInfoPtr info(serial::DeviceInfo::New());
  51         info->path = next_device;
  52         devices.push_back(info.Pass());
  53         break;
  54       }
  55     }
  56   } while (true);
  57   return devices.Pass();
  58 }
  59
  60 }  // namespace device