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Side by Side Diff: device/bluetooth/dbus/bluetooth_gatt_characteristic_service_provider_impl.h

Issue 1914893002: DBus changes for implementing local GATT attributes. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@bluetooth_classes
Patch Set: test leak fix Created 4 years, 7 months ago
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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 #ifndef DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_SERVICE_PROVIDER_IMP L_H_
6 #define DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_SERVICE_PROVIDER_IMP L_H_
7
8 #include <stdint.h>
9 #include <string>
10 #include <vector>
11
12 #include "base/macros.h"
13 #include "base/memory/ref_counted.h"
14 #include "base/memory/weak_ptr.h"
15 #include "base/threading/platform_thread.h"
16 #include "dbus/bus.h"
17 #include "dbus/exported_object.h"
18 #include "dbus/message.h"
19 #include "dbus/object_path.h"
20 #include "device/bluetooth/dbus/bluetooth_gatt_attribute_value_delegate.h"
21 #include "device/bluetooth/dbus/bluetooth_gatt_characteristic_service_provider.h "
22
23 namespace bluez {
24
25 // The BluetoothGattCharacteristicServiceProvider implementation used in
26 // production.
27 class DEVICE_BLUETOOTH_EXPORT BluetoothGattCharacteristicServiceProviderImpl
28 : public BluetoothGattCharacteristicServiceProvider {
29 public:
30 BluetoothGattCharacteristicServiceProviderImpl(
31 dbus::Bus* bus,
32 const dbus::ObjectPath& object_path,
33 std::unique_ptr<BluetoothGattAttributeValueDelegate> delegate,
34 const std::string& uuid,
35 const std::vector<std::string>& flags,
36 const std::vector<std::string>& permissions,
37 const dbus::ObjectPath& service_path);
38
39 ~BluetoothGattCharacteristicServiceProviderImpl() override;
40
41 // For testing.
42 BluetoothGattCharacteristicServiceProviderImpl(
43 const dbus::ObjectPath& object_path,
44 const std::string& uuid,
45 const dbus::ObjectPath& service_path);
46
47 // BluetoothGattCharacteristicServiceProvider override.
48 void SendValueChanged(const std::vector<uint8_t>& value) override;
49
50 private:
51 // Returns true if the current thread is on the origin thread.
52 bool OnOriginThread();
53
54 // Called by dbus:: when the Bluetooth daemon fetches a single property of
55 // the characteristic.
56 void Get(dbus::MethodCall* method_call,
57 dbus::ExportedObject::ResponseSender response_sender);
58
59 // Called by dbus:: when the Bluetooth daemon sets a single property of the
60 // characteristic.
61 void Set(dbus::MethodCall* method_call,
62 dbus::ExportedObject::ResponseSender response_sender);
63
64 // Called by dbus:: when the Bluetooth daemon fetches all properties of the
65 // characteristic.
66 void GetAll(dbus::MethodCall* method_call,
67 dbus::ExportedObject::ResponseSender response_sender);
68
69 // Called by dbus:: when a method is exported.
70 void OnExported(const std::string& interface_name,
71 const std::string& method_name,
72 bool success);
73
74 // Called by the Delegate in response to a method to call to get all
75 // properties, in which the delegate has successfully returned the
76 // characteristic value.
77 void OnGetAll(dbus::MethodCall* method_call,
78 dbus::ExportedObject::ResponseSender response_sender,
79 const std::vector<uint8_t>& value);
80
81 // Writes an array of the service's properties into the provided writer.
82 void WriteProperties(dbus::MessageWriter* writer,
83 const std::vector<uint8_t>* value) override;
84
85 // Called by the Delegate in response to a successful method call to get the
86 // characteristic value.
87 void OnGet(dbus::MethodCall* method_call,
88 dbus::ExportedObject::ResponseSender response_sender,
89 const std::vector<uint8_t>& value);
90
91 // Called by the Delegate in response to a successful method call to set the
92 // characteristic value.
93 void OnSet(dbus::MethodCall* method_call,
94 dbus::ExportedObject::ResponseSender response_sender);
95
96 // Called by the Delegate in response to a failed method call to get or set
97 // the characteristic value.
98 void OnFailure(dbus::MethodCall* method_call,
99 dbus::ExportedObject::ResponseSender response_sender);
100
101 const dbus::ObjectPath& object_path() const override;
102
103 // Origin thread (i.e. the UI thread in production).
104 base::PlatformThreadId origin_thread_id_;
105
106 // 128-bit characteristic UUID of this object.
107 std::string uuid_;
108
109 // D-Bus bus object is exported on, not owned by this object and must
110 // outlive it.
111 dbus::Bus* bus_;
112
113 // Incoming methods to get and set the "Value" property are passed on to the
114 // delegate and callbacks passed to generate a reply. |delegate_| is generally
115 // the object that owns this one and must outlive it.
116 std::unique_ptr<BluetoothGattAttributeValueDelegate> delegate_;
117
118 // D-Bus object path of object we are exporting, kept so we can unregister
119 // again in our destructor.
120 dbus::ObjectPath object_path_;
121
122 // Object path of the GATT service that the exported characteristic belongs
123 // to.
124 dbus::ObjectPath service_path_;
125
126 // D-Bus object we are exporting, owned by this object.
127 scoped_refptr<dbus::ExportedObject> exported_object_;
128
129 // Weak pointer factory for generating 'this' pointers that might live longer
130 // than we do.
131 // Note: This should remain the last member so it'll be destroyed and
132 // invalidate its weak pointers before any other members are destroyed.
133 base::WeakPtrFactory<BluetoothGattCharacteristicServiceProviderImpl>
134 weak_ptr_factory_;
135
136 DISALLOW_COPY_AND_ASSIGN(BluetoothGattCharacteristicServiceProviderImpl);
137 };
138
139 } // namespace bluez
140
141 #endif // DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_SERVICE_PROVIDER_ IMPL_H_
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