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1 // Copyright 2016 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 "content/browser/gamepad/gamepad_shared_buffer_impl.h" | |
6 | |
7 #include "content/common/gamepad_hardware_buffer.h" | |
8 | |
9 namespace content { | |
10 | |
11 GamepadSharedBufferImpl::GamepadSharedBufferImpl() { | |
12 size_t data_size = sizeof(GamepadHardwareBuffer); | |
13 bool res = shared_memory_.CreateAndMapAnonymous(data_size); | |
14 CHECK(res); | |
15 | |
16 void* mem = shared_memory_.memory(); | |
17 DCHECK(mem); | |
18 // Placement new | |
scottmg
2016/07/01 22:25:39
This is a weird comment (unnecessary I think).
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19 new (mem) GamepadHardwareBuffer(); | |
20 | |
21 //GamepadHardwareBuffer* hwbuf = hardware_buffer(); | |
scottmg
2016/07/01 22:25:39
Remove these lines.
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22 //memset(hwbuf, 0, sizeof(GamepadHardwareBuffer)); | |
23 } | |
24 | |
25 GamepadSharedBufferImpl::~GamepadSharedBufferImpl() { | |
26 | |
scottmg
2016/07/01 22:25:39
nit; remove empty line
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27 } | |
28 | |
29 base::SharedMemory* GamepadSharedBufferImpl::shared_memory() { | |
30 return &shared_memory_; | |
31 } | |
32 | |
33 blink::WebGamepads* GamepadSharedBufferImpl::buffer() { | |
34 return &(hardware_buffer()->buffer); | |
35 } | |
36 | |
37 GamepadHardwareBuffer* GamepadSharedBufferImpl::hardware_buffer() { | |
38 void* mem = shared_memory_.memory(); | |
39 DCHECK(mem); | |
40 return static_cast<GamepadHardwareBuffer*>(mem); | |
41 } | |
42 | |
43 void GamepadSharedBufferImpl::WriteBegin() { | |
44 hardware_buffer()->sequence.WriteBegin(); | |
45 } | |
46 | |
47 void GamepadSharedBufferImpl::WriteEnd() { | |
48 hardware_buffer()->sequence.WriteEnd(); | |
49 } | |
50 | |
51 } // namespace content | |
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