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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/bluetooth/bluetooth_gatt_notify_session.h"
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/task/single_thread_task_runner.h"
#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
namespace device {
// static
BluetoothGattNotifySession::Id BluetoothGattNotifySession::GetNextId() {
static Id::Generator generator;
return generator.GenerateNextId();
}
BluetoothGattNotifySession::BluetoothGattNotifySession(
base::WeakPtr<BluetoothRemoteGattCharacteristic> characteristic)
: characteristic_(characteristic),
characteristic_id_(characteristic.get() ? characteristic->GetIdentifier()
: std::string()),
active_(true),
unique_id_(GetNextId()) {}
BluetoothGattNotifySession::~BluetoothGattNotifySession() {
if (active_) {
Stop(base::DoNothing());
}
}
std::string BluetoothGattNotifySession::GetCharacteristicIdentifier() const {
return characteristic_id_;
}
BluetoothRemoteGattCharacteristic*
BluetoothGattNotifySession::GetCharacteristic() const {
return characteristic_.get();
}
bool BluetoothGattNotifySession::IsActive() {
return active_ && characteristic_ != nullptr &&
characteristic_->IsNotifying();
}
void BluetoothGattNotifySession::Stop(base::OnceClosure callback) {
active_ = false;
if (characteristic_ != nullptr) {
characteristic_->StopNotifySession(unique_id(), std::move(callback));
} else {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, std::move(callback));
}
}
} // namespace device
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