blob: 0f66fc797730a0d4a1751f31e1f54e005b39b92e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "data_fetcher_shared_memory.h"
#include "base/logging.h"
namespace content {
DataFetcherSharedMemory::~DataFetcherSharedMemory() {
if (started_)
StopFetchingDeviceMotionData();
}
bool DataFetcherSharedMemory::NeedsPolling() {
return false;
}
bool DataFetcherSharedMemory::FetchDeviceMotionDataIntoBuffer() {
NOTREACHED();
return false;
}
bool DataFetcherSharedMemory::StartFetchingDeviceMotionData(
DeviceMotionHardwareBuffer* buffer) {
DCHECK(buffer);
device_motion_buffer_ = buffer;
device_motion_buffer_->seqlock.WriteBegin();
device_motion_buffer_->data.allAvailableSensorsAreActive = true;
device_motion_buffer_->seqlock.WriteEnd();
started_ = true;
return true;
}
void DataFetcherSharedMemory::StopFetchingDeviceMotionData() {
device_motion_buffer_->seqlock.WriteBegin();
device_motion_buffer_->data.allAvailableSensorsAreActive = false;
device_motion_buffer_->seqlock.WriteEnd();
started_ = false;
}
} // namespace content
|
