mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 00:06:09 +03:00
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
|
// Copyright (c) 2014 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_BASE_NETWORK_ACTIVITY_MONITOR_H_
|
||
|
|
#define NET_BASE_NETWORK_ACTIVITY_MONITOR_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#include "base/lazy_instance.h"
|
||
|
|
#include "base/macros.h"
|
||
|
|
#include "base/synchronization/lock.h"
|
||
|
|
#include "base/time/time.h"
|
||
|
|
#include "net/base/net_export.h"
|
||
|
|
|
||
|
|
namespace net {
|
||
|
|
|
||
|
|
namespace test {
|
||
|
|
|
||
|
|
class NetworkActivityMonitorPeer;
|
||
|
|
|
||
|
|
} // namespace test
|
||
|
|
|
||
|
|
// NetworkActivityMonitor tracks network activity across all sockets and
|
||
|
|
// provides cumulative statistics about bytes sent to and received from
|
||
|
|
// the network. It uses a lock to ensure thread-safety.
|
||
|
|
//
|
||
|
|
// There are a few caveats:
|
||
|
|
// * Bytes "sent" includes all send attempts and may include
|
||
|
|
// some bytes which were actually never sent over the network.
|
||
|
|
// * Bytes received includes only bytes actually received from the network,
|
||
|
|
// and does not include any bytes read from the the cache.
|
||
|
|
// * Network activity not initiated directly using chromium sockets won't
|
||
|
|
// be reflected here (for instance DNS queries issued by getaddrinfo()).
|
||
|
|
class NET_EXPORT_PRIVATE NetworkActivityMonitor {
|
||
|
|
public:
|
||
|
|
// Returns the singleton instance of the monitor.
|
||
|
|
static NetworkActivityMonitor* GetInstance();
|
||
|
|
|
||
|
|
void IncrementBytesReceived(uint64_t bytes_received);
|
||
|
|
void IncrementBytesSent(uint64_t bytes_sent);
|
||
|
|
|
||
|
|
uint64_t GetBytesReceived() const;
|
||
|
|
uint64_t GetBytesSent() const;
|
||
|
|
|
||
|
|
base::TimeDelta GetTimeSinceLastReceived() const;
|
||
|
|
base::TimeDelta GetTimeSinceLastSent() const;
|
||
|
|
|
||
|
|
private:
|
||
|
|
friend class test::NetworkActivityMonitorPeer;
|
||
|
|
|
||
|
|
NetworkActivityMonitor();
|
||
|
|
~NetworkActivityMonitor();
|
||
|
|
friend struct base::LazyInstanceTraitsBase<NetworkActivityMonitor>;
|
||
|
|
|
||
|
|
// Protects all the following members.
|
||
|
|
mutable base::Lock lock_;
|
||
|
|
|
||
|
|
uint64_t bytes_received_;
|
||
|
|
uint64_t bytes_sent_;
|
||
|
|
|
||
|
|
base::TimeTicks last_received_ticks_;
|
||
|
|
base::TimeTicks last_sent_ticks_;
|
||
|
|
|
||
|
|
DISALLOW_COPY_AND_ASSIGN(NetworkActivityMonitor);
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace net
|
||
|
|
|
||
|
|
#endif // NET_BASE_NETWORK_ACTIVITY_MONITOR_H_
|