device/hid/hid_service_mac.h

   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 #ifndef DEVICE_HID_HID_SERVICE_MAC_H_
   6 #define DEVICE_HID_HID_SERVICE_MAC_H_
   7
   8 #include <CoreFoundation/CoreFoundation.h>
   9 #include <IOKit/IOKitLib.h>
  10
  11 #include <string>
  12
  13 #include "base/mac/foundation_util.h"
  14 #include "base/mac/scoped_ioobject.h"
  15 #include "base/memory/ref_counted.h"
  16 #include "device/hid/hid_service.h"
  17
  18 namespace base {
  19 class SingleThreadTaskRunner;
  20 }
  21
  22 namespace device {
  23
  24 class HidConnection;
  25
  26 class HidServiceMac : public HidService {
  27  public:
  28   HidServiceMac(scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
  29   ~HidServiceMac() override;
  30
  31   void Connect(const HidDeviceId& device_id,
  32                const ConnectCallback& connect) override;
  33
  34  private:
  35   // IOService matching callbacks.
  36   static void FirstMatchCallback(void* context, io_iterator_t iterator);
  37   static void TerminatedCallback(void* context, io_iterator_t iterator);
  38
  39   void AddDevices();
  40   void RemoveDevices();
  41
  42   static scoped_refptr<device::HidDeviceInfo> CreateDeviceInfo(
  43       io_service_t device);
  44
  45   // Platform notification port.
  46   IONotificationPortRef notify_port_;
  47   base::mac::ScopedIOObject<io_iterator_t> devices_added_iterator_;
  48   base::mac::ScopedIOObject<io_iterator_t> devices_removed_iterator_;
  49
  50   // The task runner for the thread on which this service was created.
  51   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
  52
  53   // The task runner for the FILE thread of the application using this service
  54   // on which slow running I/O operations can be performed.
  55   scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
  56
  57   DISALLOW_COPY_AND_ASSIGN(HidServiceMac);
  58 };
  59
  60 }  // namespace device
  61
  62 #endif  // DEVICE_HID_HID_SERVICE_MAC_H_