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// Copyright 2020 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_ANDROID_NETWORK_ACTIVATION_REQUEST_H_
#define NET_ANDROID_NETWORK_ACTIVATION_REQUEST_H_
#include "base/android/jni_android.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner.h"
#include "net/base/net_export.h"
#include "net/base/network_change_notifier.h"
namespace net {
namespace android {
// NetworkActivationRequest asks Android to activate a network connection which
// fits a specified set of constraints. The system may choose to fulfill the
// request with an already-established network connection, or it may activate a
// new connection specifically to satisfy this request. In the latter case the
// connection may be deactivated upon destruction of this object.
class NET_EXPORT_PRIVATE NetworkActivationRequest {
public:
using NetworkHandle = NetworkChangeNotifier::NetworkHandle;
enum class TransportType {
// Requests a network connection which uses a mobile network for transport.
kMobile,
};
// Requests an Internet-connected network which satisfies the given
// `transport` constraint.
explicit NetworkActivationRequest(TransportType transport);
NetworkActivationRequest(const NetworkActivationRequest&) = delete;
NetworkActivationRequest& operator=(const NetworkActivationRequest&) = delete;
~NetworkActivationRequest();
// Exposes a handle to the network currently activated by the system on behalf
// of this request, if any.
const absl::optional<NetworkHandle>& activated_network() const {
return activated_network_;
}
// Called from Java via JNI. May be called from any thread, but the ability
// to call it is managed synchronously at construction and destruction of this
// NetworkActivationRequest.
void NotifyAvailable(JNIEnv* env, NetworkHandle network);
private:
void NotifyAvailableOnCorrectSequence(NetworkHandle network);
const scoped_refptr<base::SequencedTaskRunner> task_runner_;
base::WeakPtr<NetworkActivationRequest> weak_self_;
base::android::ScopedJavaGlobalRef<jobject> java_request_;
absl::optional<NetworkHandle> activated_network_;
base::WeakPtrFactory<NetworkActivationRequest> weak_ptr_factory_{this};
};
} // namespace android
} // namespace net
#endif // NET_ANDROID_NETWORK_ACTIVATION_REQUEST_H_
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