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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_BLUETOOTH_BLUETOOTH_SOCKET_ANDROID_H_
#define DEVICE_BLUETOOTH_BLUETOOTH_SOCKET_ANDROID_H_
#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "base/functional/callback_forward.h"
#include "base/memory/scoped_refptr.h"
#include "device/bluetooth/bluetooth_socket.h"
#include "device/bluetooth/bluetooth_socket_thread.h"
#include "device/bluetooth/public/cpp/bluetooth_uuid.h"
#include "net/base/io_buffer.h"
namespace device {
class BluetoothSocketThread;
class Outcome;
class DEVICE_BLUETOOTH_EXPORT BluetoothSocketAndroid : public BluetoothSocket {
public:
static scoped_refptr<BluetoothSocketAndroid> Create(
base::android::ScopedJavaLocalRef<jobject>
socket_wrapper, // Java Type: BluetoothSocketWrapper
scoped_refptr<base::SequencedTaskRunner> ui_task_runner,
scoped_refptr<BluetoothSocketThread> socket_thread);
BluetoothSocketAndroid(base::android::ScopedJavaLocalRef<jobject> j_socket,
scoped_refptr<base::SequencedTaskRunner> task_runner,
scoped_refptr<BluetoothSocketThread> socket_thread);
BluetoothSocketAndroid(const BluetoothSocketAndroid&) = delete;
BluetoothSocketAndroid& operator=(const BluetoothSocketAndroid&) = delete;
// Returns the associated ChromeBluetoothSocket Java object.
base::android::ScopedJavaLocalRef<jobject> GetJavaObject() const;
// Connects this socket to the bound service. On a successful connection,
// the socket properties will be updated and |success_callback| called. On
// failure, |error_callback| will be called with a message explaining the
// cause of failure.
void Connect(base::OnceClosure success_callback,
ErrorCompletionCallback error_callback);
// BluetoothSocket:
void Disconnect(base::OnceClosure success_callback) override;
void Receive(int buffer_size,
ReceiveCompletionCallback success_callback,
ReceiveErrorCompletionCallback error_callback) override;
void Send(scoped_refptr<net::IOBuffer> buffer,
int buffer_size,
SendCompletionCallback success_callback,
ErrorCompletionCallback error_callback) override;
void Accept(AcceptCompletionCallback success_callback,
ErrorCompletionCallback error_callback) override;
private:
~BluetoothSocketAndroid() override;
void DispatchErrorCallback(ErrorCompletionCallback error_callback,
const Outcome& outcome); // Java Type: Outcome
void DoConnect(base::OnceClosure success_callback,
ErrorCompletionCallback error_callback);
void DoDisconnect(base::OnceClosure success_callback);
void DoReceive(size_t buffer_size,
ReceiveCompletionCallback success_callback,
ReceiveErrorCompletionCallback error_callback);
void DoSend(scoped_refptr<net::IOBuffer> buffer,
size_t buffer_size,
SendCompletionCallback success_callback,
ErrorCompletionCallback error_callback);
// UI thread task runner.
scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
// Socket thread used to perform blocking IO operations except receiving.
scoped_refptr<BluetoothSocketThread> socket_thread_;
// A dedicated thread for receiving data. Android Bluetooth socket uses Java's
// InputStream which requires a dedicated thread to listen to data.
std::unique_ptr<base::Thread> receiving_thread_;
// Java object org.chromium.device.bluetooth.ChromeBluetoothSocket.
base::android::ScopedJavaGlobalRef<jobject> j_socket_;
};
} // namespace device
#endif // DEVICE_BLUETOOTH_BLUETOOTH_SOCKET_ANDROID_H_
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