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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "device/core/device_client.h" | 5 #include "device/core/device_client.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 | 8 |
9 namespace device { | 9 namespace device { |
10 | 10 |
11 namespace { | 11 namespace { |
12 | 12 |
13 DeviceClient* g_instance = NULL; | 13 DeviceClient* g_instance; |
14 | 14 |
15 } // namespace | 15 } // namespace |
16 | 16 |
17 DeviceClient::DeviceClient() { | 17 DeviceClient::DeviceClient() { |
18 DCHECK(!g_instance); | |
19 g_instance = this; | 18 g_instance = this; |
20 } | 19 } |
21 | 20 |
22 DeviceClient::~DeviceClient() { | 21 DeviceClient::~DeviceClient() { |
23 g_instance = NULL; | 22 g_instance = nullptr; |
24 } | 23 } |
25 | 24 |
26 /* static */ | 25 /* static */ |
27 DeviceClient* DeviceClient::Get() { | 26 DeviceClient* DeviceClient::Get() { |
28 DCHECK(g_instance); | 27 DCHECK(g_instance); |
29 return g_instance; | 28 return g_instance; |
30 } | 29 } |
31 | 30 |
32 UsbService* DeviceClient::GetUsbService() { | 31 UsbService* DeviceClient::GetUsbService() { |
33 // This should never be called by clients which do not support the USB API. | 32 // This should never be called by clients which do not support the USB API. |
34 NOTREACHED(); | 33 NOTREACHED(); |
35 return NULL; | 34 return nullptr; |
36 } | 35 } |
37 | 36 |
38 HidService* DeviceClient::GetHidService() { | 37 HidService* DeviceClient::GetHidService() { |
39 // This should never be called by clients which do not support the HID API. | 38 // This should never be called by clients which do not support the HID API. |
40 NOTREACHED(); | 39 NOTREACHED(); |
41 return NULL; | 40 return nullptr; |
42 } | 41 } |
43 | 42 |
44 } // namespace device | 43 } // namespace device |
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