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Unified Diff: device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc

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, 8 months ago
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Index: device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc
diff --git a/device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc b/device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc
index 239be9ccc133a7015739d2da101c971336b72e32..5f85d9bf9e117b03639a152eadd55ea81d873330 100644
--- a/device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc
+++ b/device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.cc
@@ -4,438 +4,11 @@
#include "device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider.h"
-#include <stddef.h>
-
-#include <memory>
-#include <utility>
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/strings/string_util.h"
-#include "base/threading/platform_thread.h"
-#include "dbus/exported_object.h"
-#include "dbus/message.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_descriptor_service_provider_impl.h"
#include "device/bluetooth/dbus/bluez_dbus_manager.h"
#include "device/bluetooth/dbus/fake_bluetooth_gatt_descriptor_service_provider.h"
-#include "third_party/cros_system_api/dbus/service_constants.h"
namespace bluez {
-namespace {
-const char kErrorInvalidArgs[] = "org.freedesktop.DBus.Error.InvalidArgs";
-const char kErrorPropertyReadOnly[] =
- "org.freedesktop.DBus.Error.PropertyReadOnly";
-const char kErrorFailed[] = "org.freedesktop.DBus.Error.Failed";
-} // namespace
-
-// The BluetoothGattDescriptorServiceProvider implementation used in production.
-class BluetoothGattDescriptorServiceProviderImpl
- : public BluetoothGattDescriptorServiceProvider {
- public:
- BluetoothGattDescriptorServiceProviderImpl(
- dbus::Bus* bus,
- const dbus::ObjectPath& object_path,
- Delegate* delegate,
- const std::string& uuid,
- const std::vector<std::string>& permissions,
- const dbus::ObjectPath& characteristic_path)
- : origin_thread_id_(base::PlatformThread::CurrentId()),
- uuid_(uuid),
- bus_(bus),
- delegate_(delegate),
- object_path_(object_path),
- characteristic_path_(characteristic_path),
- weak_ptr_factory_(this) {
- VLOG(1) << "Created Bluetooth GATT characteristic descriptor: "
- << object_path.value() << " UUID: " << uuid;
- DCHECK(bus_);
- DCHECK(delegate_);
- DCHECK(!uuid_.empty());
- DCHECK(object_path_.IsValid());
- DCHECK(characteristic_path_.IsValid());
- DCHECK(base::StartsWith(object_path_.value(),
- characteristic_path_.value() + "/",
- base::CompareCase::SENSITIVE));
-
- exported_object_ = bus_->GetExportedObject(object_path_);
-
- exported_object_->ExportMethod(
- dbus::kDBusPropertiesInterface, dbus::kDBusPropertiesGet,
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::Get,
- weak_ptr_factory_.GetWeakPtr()),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnExported,
- weak_ptr_factory_.GetWeakPtr()));
-
- exported_object_->ExportMethod(
- dbus::kDBusPropertiesInterface, dbus::kDBusPropertiesSet,
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::Set,
- weak_ptr_factory_.GetWeakPtr()),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnExported,
- weak_ptr_factory_.GetWeakPtr()));
-
- exported_object_->ExportMethod(
- dbus::kDBusPropertiesInterface, dbus::kDBusPropertiesGetAll,
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::GetAll,
- weak_ptr_factory_.GetWeakPtr()),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnExported,
- weak_ptr_factory_.GetWeakPtr()));
- }
-
- ~BluetoothGattDescriptorServiceProviderImpl() override {
- VLOG(1) << "Cleaning up Bluetooth GATT characteristic descriptor: "
- << object_path_.value();
- bus_->UnregisterExportedObject(object_path_);
- }
-
- // BluetoothGattDescriptorServiceProvider override.
- void SendValueChanged(const std::vector<uint8_t>& value) override {
- VLOG(2) << "Emitting a PropertiesChanged signal for descriptor value.";
- dbus::Signal signal(dbus::kDBusPropertiesInterface,
- dbus::kDBusPropertiesChangedSignal);
- dbus::MessageWriter writer(&signal);
- dbus::MessageWriter array_writer(NULL);
- dbus::MessageWriter dict_entry_writer(NULL);
- dbus::MessageWriter variant_writer(NULL);
-
- // interface_name
- writer.AppendString(
- bluetooth_gatt_descriptor::kBluetoothGattDescriptorInterface);
-
- // changed_properties
- writer.OpenArray("{sv}", &array_writer);
- array_writer.OpenDictEntry(&dict_entry_writer);
- dict_entry_writer.AppendString(bluetooth_gatt_descriptor::kValueProperty);
- dict_entry_writer.OpenVariant("ay", &variant_writer);
- variant_writer.AppendArrayOfBytes(value.data(), value.size());
- dict_entry_writer.CloseContainer(&variant_writer);
- array_writer.CloseContainer(&dict_entry_writer);
- writer.CloseContainer(&array_writer);
-
- // invalidated_properties.
- writer.OpenArray("s", &array_writer);
- writer.CloseContainer(&array_writer);
-
- exported_object_->SendSignal(&signal);
- }
-
- private:
- // Returns true if the current thread is on the origin thread.
- bool OnOriginThread() {
- return base::PlatformThread::CurrentId() == origin_thread_id_;
- }
-
- // Called by dbus:: when the Bluetooth daemon fetches a single property of
- // the descriptor.
- void Get(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender) {
- VLOG(2) << "BluetoothGattDescriptorServiceProvider::Get: "
- << object_path_.value();
- DCHECK(OnOriginThread());
-
- dbus::MessageReader reader(method_call);
-
- std::string interface_name;
- std::string property_name;
- if (!reader.PopString(&interface_name) ||
- !reader.PopString(&property_name) || reader.HasMoreData()) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(method_call, kErrorInvalidArgs,
- "Expected 'ss'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Only the GATT descriptor interface is supported.
- if (interface_name !=
- bluetooth_gatt_descriptor::kBluetoothGattDescriptorInterface) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorInvalidArgs,
- "No such interface: '" + interface_name + "'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // If getting the "Value" property, obtain the value from the delegate.
- if (property_name == bluetooth_gatt_descriptor::kValueProperty) {
- DCHECK(delegate_);
- delegate_->GetDescriptorValue(
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnGet,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnFailure,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender));
- return;
- }
-
- std::unique_ptr<dbus::Response> response =
- dbus::Response::FromMethodCall(method_call);
- dbus::MessageWriter writer(response.get());
- dbus::MessageWriter variant_writer(NULL);
-
- // TODO(armansito): Process the "Permissions" property below.
- if (property_name == bluetooth_gatt_descriptor::kUUIDProperty) {
- writer.OpenVariant("s", &variant_writer);
- variant_writer.AppendString(uuid_);
- writer.CloseContainer(&variant_writer);
- } else if (property_name ==
- bluetooth_gatt_descriptor::kCharacteristicProperty) {
- writer.OpenVariant("o", &variant_writer);
- variant_writer.AppendObjectPath(characteristic_path_);
- writer.CloseContainer(&variant_writer);
- } else {
- response = dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorInvalidArgs,
- "No such property: '" + property_name + "'.");
- }
-
- response_sender.Run(std::move(response));
- }
-
- // Called by dbus:: when the Bluetooth daemon sets a single property of the
- // descriptor.
- void Set(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender) {
- VLOG(2) << "BluetoothGattDescriptorServiceProvider::Set: "
- << object_path_.value();
- DCHECK(OnOriginThread());
-
- dbus::MessageReader reader(method_call);
-
- std::string interface_name;
- std::string property_name;
- dbus::MessageReader variant_reader(NULL);
- if (!reader.PopString(&interface_name) ||
- !reader.PopString(&property_name) ||
- !reader.PopVariant(&variant_reader) || reader.HasMoreData()) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(method_call, kErrorInvalidArgs,
- "Expected 'ssv'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Only the GATT descriptor interface is allowed.
- if (interface_name !=
- bluetooth_gatt_descriptor::kBluetoothGattDescriptorInterface) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorInvalidArgs,
- "No such interface: '" + interface_name + "'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Only the "Value" property is writeable.
- if (property_name != bluetooth_gatt_descriptor::kValueProperty) {
- std::string error_name;
- std::string error_message;
- if (property_name == bluetooth_gatt_descriptor::kUUIDProperty ||
- property_name == bluetooth_gatt_descriptor::kCharacteristicProperty) {
- error_name = kErrorPropertyReadOnly;
- error_message = "Read-only property: '" + property_name + "'.";
- } else {
- error_name = kErrorInvalidArgs;
- error_message = "No such property: '" + property_name + "'.";
- }
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(method_call, error_name,
- error_message);
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Obtain the value.
- const uint8_t* bytes = NULL;
- size_t length = 0;
- if (!variant_reader.PopArrayOfBytes(&bytes, &length)) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorInvalidArgs,
- "Property '" + property_name + "' has type 'ay'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Pass the set request onto the delegate.
- std::vector<uint8_t> value(bytes, bytes + length);
- DCHECK(delegate_);
- delegate_->SetDescriptorValue(
- value, base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnSet,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnFailure,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender));
- }
-
- // Called by dbus:: when the Bluetooth daemon fetches all properties of the
- // descriptor.
- void GetAll(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender) {
- VLOG(2) << "BluetoothGattDescriptorServiceProvider::GetAll: "
- << object_path_.value();
- DCHECK(OnOriginThread());
-
- dbus::MessageReader reader(method_call);
-
- std::string interface_name;
- if (!reader.PopString(&interface_name) || reader.HasMoreData()) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(method_call, kErrorInvalidArgs,
- "Expected 's'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Only the GATT descriptor interface is supported.
- if (interface_name !=
- bluetooth_gatt_descriptor::kBluetoothGattDescriptorInterface) {
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorInvalidArgs,
- "No such interface: '" + interface_name + "'.");
- response_sender.Run(std::move(error_response));
- return;
- }
-
- // Try to obtain the value from the delegate. We will construct the
- // response in the success callback.
- DCHECK(delegate_);
- delegate_->GetDescriptorValue(
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnGetAll,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender),
- base::Bind(&BluetoothGattDescriptorServiceProviderImpl::OnFailure,
- weak_ptr_factory_.GetWeakPtr(), method_call,
- response_sender));
- }
-
- // Called by dbus:: when a method is exported.
- void OnExported(const std::string& interface_name,
- const std::string& method_name,
- bool success) {
- LOG_IF(WARNING, !success) << "Failed to export " << interface_name << "."
- << method_name;
- }
-
- // Called by the Delegate in response to a method to call to get all
- // properties, in which the delegate has successfully returned the
- // descriptor value.
- void OnGetAll(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender,
- const std::vector<uint8_t>& value) {
- VLOG(2) << "Descriptor value obtained from delegate. Responding to "
- << "GetAll.";
-
- std::unique_ptr<dbus::Response> response =
- dbus::Response::FromMethodCall(method_call);
- dbus::MessageWriter writer(response.get());
- dbus::MessageWriter array_writer(NULL);
- dbus::MessageWriter dict_entry_writer(NULL);
- dbus::MessageWriter variant_writer(NULL);
-
- writer.OpenArray("{sv}", &array_writer);
-
- array_writer.OpenDictEntry(&dict_entry_writer);
- dict_entry_writer.AppendString(bluetooth_gatt_descriptor::kUUIDProperty);
- dict_entry_writer.AppendVariantOfString(uuid_);
- array_writer.CloseContainer(&dict_entry_writer);
-
- array_writer.OpenDictEntry(&dict_entry_writer);
- dict_entry_writer.AppendString(
- bluetooth_gatt_descriptor::kCharacteristicProperty);
- dict_entry_writer.AppendVariantOfObjectPath(characteristic_path_);
- array_writer.CloseContainer(&dict_entry_writer);
-
- array_writer.OpenDictEntry(&dict_entry_writer);
- dict_entry_writer.AppendString(bluetooth_gatt_descriptor::kValueProperty);
- dict_entry_writer.OpenVariant("ay", &variant_writer);
- variant_writer.AppendArrayOfBytes(value.data(), value.size());
- dict_entry_writer.CloseContainer(&variant_writer);
- array_writer.CloseContainer(&dict_entry_writer);
-
- // TODO(armansito): Process "Permissions" property.
-
- writer.CloseContainer(&array_writer);
-
- response_sender.Run(std::move(response));
- }
-
- // Called by the Delegate in response to a successful method call to get the
- // descriptor value.
- void OnGet(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender,
- const std::vector<uint8_t>& value) {
- VLOG(2) << "Returning descriptor value obtained from delegate.";
- std::unique_ptr<dbus::Response> response =
- dbus::Response::FromMethodCall(method_call);
- dbus::MessageWriter writer(response.get());
- dbus::MessageWriter variant_writer(NULL);
-
- writer.OpenVariant("ay", &variant_writer);
- variant_writer.AppendArrayOfBytes(value.data(), value.size());
- writer.CloseContainer(&variant_writer);
-
- response_sender.Run(std::move(response));
- }
-
- // Called by the Delegate in response to a successful method call to set the
- // descriptor value.
- void OnSet(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender) {
- VLOG(2) << "Successfully set descriptor value. Return success.";
- response_sender.Run(dbus::Response::FromMethodCall(method_call));
- }
-
- // Called by the Delegate in response to a failed method call to get or set
- // the descriptor value.
- void OnFailure(dbus::MethodCall* method_call,
- dbus::ExportedObject::ResponseSender response_sender) {
- VLOG(2) << "Failed to get/set descriptor value. Report error.";
- std::unique_ptr<dbus::ErrorResponse> error_response =
- dbus::ErrorResponse::FromMethodCall(
- method_call, kErrorFailed, "Failed to get/set descriptor value.");
- response_sender.Run(std::move(error_response));
- }
-
- // Origin thread (i.e. the UI thread in production).
- base::PlatformThreadId origin_thread_id_;
-
- // 128-bit descriptor UUID of this object.
- std::string uuid_;
-
- // D-Bus bus object is exported on, not owned by this object and must
- // outlive it.
- dbus::Bus* bus_;
-
- // Incoming methods to get and set the "Value" property are passed on to the
- // delegate and callbacks passed to generate a reply. |delegate_| is generally
- // the object that owns this one and must outlive it.
- Delegate* delegate_;
-
- // D-Bus object path of object we are exporting, kept so we can unregister
- // again in our destructor.
- dbus::ObjectPath object_path_;
-
- // Object path of the GATT characteristic that the exported descriptor belongs
- // to.
- dbus::ObjectPath characteristic_path_;
-
- // D-Bus object we are exporting, owned by this object.
- scoped_refptr<dbus::ExportedObject> exported_object_;
-
- // Weak pointer factory for generating 'this' pointers that might live longer
- // than we do.
- // Note: This should remain the last member so it'll be destroyed and
- // invalidate its weak pointers before any other members are destroyed.
- base::WeakPtrFactory<BluetoothGattDescriptorServiceProviderImpl>
- weak_ptr_factory_;
-
- DISALLOW_COPY_AND_ASSIGN(BluetoothGattDescriptorServiceProviderImpl);
-};
BluetoothGattDescriptorServiceProvider::
BluetoothGattDescriptorServiceProvider() {}
@@ -448,16 +21,17 @@ BluetoothGattDescriptorServiceProvider*
BluetoothGattDescriptorServiceProvider::Create(
dbus::Bus* bus,
const dbus::ObjectPath& object_path,
- Delegate* delegate,
+ std::unique_ptr<BluetoothGattAttributeValueDelegate> delegate,
const std::string& uuid,
const std::vector<std::string>& permissions,
const dbus::ObjectPath& characteristic_path) {
if (!bluez::BluezDBusManager::Get()->IsUsingFakes()) {
return new BluetoothGattDescriptorServiceProviderImpl(
- bus, object_path, delegate, uuid, permissions, characteristic_path);
+ bus, object_path, std::move(delegate), uuid, permissions,
+ characteristic_path);
}
return new FakeBluetoothGattDescriptorServiceProvider(
- object_path, delegate, uuid, permissions, characteristic_path);
+ object_path, std::move(delegate), uuid, permissions, characteristic_path);
}
} // namespace bluez

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