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Side by Side Diff: device/generic_sensor/public/cpp/sensor_reading.h

Issue 2587883002: Fix ODR violations caused by mojoms being included in multiple components. (Closed)
Patch Set: Created 3 years, 12 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 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 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 #ifndef DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_ 5 #ifndef DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_
6 #define DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_ 6 #define DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_
7 7
8 #include "device/base/synchronization/one_writer_seqlock.h" 8 #include "device/base/synchronization/one_writer_seqlock.h"
9 #include "device/generic_sensor/generic_sensor_export.h" 9 #include "device/generic_sensor/public/cpp/generic_sensor_public_export.h"
10 #include "device/generic_sensor/public/interfaces/sensor.mojom.h" 10 #include "device/generic_sensor/public/interfaces/sensor.mojom.h"
11 11
12 namespace device { 12 namespace device {
13 13
14 // This class is guarantied to have a fixed size of 64 bits on every platform. 14 // This class is guarantied to have a fixed size of 64 bits on every platform.
15 // It is introduce to simplify sensors shared buffer memory calculation. 15 // It is introduce to simplify sensors shared buffer memory calculation.
16 template <typename Data> 16 template <typename Data>
17 class SensorReadingField { 17 class SensorReadingField {
18 public: 18 public:
19 static_assert(sizeof(Data) <= sizeof(int64_t), 19 static_assert(sizeof(Data) <= sizeof(int64_t),
(...skipping 13 matching lines...) Expand all
33 union Storage { 33 union Storage {
34 int64_t unused; 34 int64_t unused;
35 Data value; 35 Data value;
36 Storage() { new (&value) Data(); } 36 Storage() { new (&value) Data(); }
37 ~Storage() { value.~Data(); } 37 ~Storage() { value.~Data(); }
38 }; 38 };
39 Storage storage_; 39 Storage storage_;
40 }; 40 };
41 41
42 // This structure represents sensor reading data: timestamp and 3 values. 42 // This structure represents sensor reading data: timestamp and 3 values.
43 struct DEVICE_GENERIC_SENSOR_EXPORT SensorReading { 43 struct DEVICE_GENERIC_SENSOR_PUBLIC_EXPORT SensorReading {
44 SensorReading(); 44 SensorReading();
45 ~SensorReading(); 45 ~SensorReading();
46 SensorReading(const SensorReading& other); 46 SensorReading(const SensorReading& other);
47 SensorReadingField<double> timestamp; 47 SensorReadingField<double> timestamp;
48 SensorReadingField<double> values[3]; 48 SensorReadingField<double> values[3];
49 }; 49 };
50 50
51 // This structure represents sensor reading buffer: sensor reading and seqlock 51 // This structure represents sensor reading buffer: sensor reading and seqlock
52 // for synchronization. 52 // for synchronization.
53 struct DEVICE_GENERIC_SENSOR_EXPORT SensorReadingSharedBuffer { 53 struct DEVICE_GENERIC_SENSOR_PUBLIC_EXPORT SensorReadingSharedBuffer {
54 SensorReadingSharedBuffer(); 54 SensorReadingSharedBuffer();
55 ~SensorReadingSharedBuffer(); 55 ~SensorReadingSharedBuffer();
56 SensorReadingField<OneWriterSeqLock> seqlock; 56 SensorReadingField<OneWriterSeqLock> seqlock;
57 SensorReading reading; 57 SensorReading reading;
58 58
59 // Gets the shared reading buffer offset for the given sensor type. 59 // Gets the shared reading buffer offset for the given sensor type.
60 static uint64_t GetOffset(mojom::SensorType type); 60 static uint64_t GetOffset(mojom::SensorType type);
61 }; 61 };
62 62
63 } // namespace device 63 } // namespace device
64 64
65 #endif // DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_ 65 #endif // DEVICE_GENERIC_SENSOR_PUBLIC_CPP_SENSOR_READING_H_
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