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/pattern.h"
  12 #include "base/strings/string_util.h"
  13
  14 namespace device {
  15
  16 // static
  17 scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
  18   return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorMac());
  19 }
  20
  21 SerialDeviceEnumeratorMac::SerialDeviceEnumeratorMac() {}
  22
  23 SerialDeviceEnumeratorMac::~SerialDeviceEnumeratorMac() {}
  24
  25 // TODO(rockot): Use IOKit to enumerate serial interfaces.
  26 mojo::Array<serial::DeviceInfoPtr> SerialDeviceEnumeratorMac::GetDevices() {
  27   const base::FilePath kDevRoot("/dev");
  28   const int kFilesAndSymLinks =
  29       base::FileEnumerator::FILES | base::FileEnumerator::SHOW_SYM_LINKS;
  30
  31   std::set<std::string> valid_patterns;
  32   valid_patterns.insert("/dev/*Bluetooth*");
  33   valid_patterns.insert("/dev/*Modem*");
  34   valid_patterns.insert("/dev/*bluetooth*");
  35   valid_patterns.insert("/dev/*modem*");
  36   valid_patterns.insert("/dev/*serial*");
  37   valid_patterns.insert("/dev/tty.*");
  38   valid_patterns.insert("/dev/cu.*");
  39
  40   mojo::Array<serial::DeviceInfoPtr> devices(0);
  41   base::FileEnumerator enumerator(kDevRoot, false, kFilesAndSymLinks);
  42   do {
  43     const base::FilePath next_device_path(enumerator.Next());
  44     const std::string next_device = next_device_path.value();
  45     if (next_device.empty())
  46       break;
  47
  48     std::set<std::string>::const_iterator i = valid_patterns.begin();
  49     for (; i != valid_patterns.end(); ++i) {
  50       if (base::MatchPattern(next_device, *i)) {
  51         serial::DeviceInfoPtr info(serial::DeviceInfo::New());
  52         info->path = next_device;
  53         devices.push_back(info.Pass());
  54         break;
  55       }
  56     }
  57   } while (true);
  58   return devices.Pass();
  59 }
  60
  61 }  // namespace device