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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_net_ThrottleQueue_h
#define mozilla_net_ThrottleQueue_h
#include "mozilla/TimeStamp.h"
#include "nsINamed.h"
#include "nsIThrottledInputChannel.h"
#include "nsITimer.h"
#include "nsTArray.h"
namespace mozilla {
namespace net {
class ThrottleInputStream;
/**
* An implementation of nsIInputChannelThrottleQueue that can be used
* to throttle uploads. This class is not thread-safe.
* Initialization and calls to WrapStream may be done on any thread;
* but otherwise, after creation, it can only be used on the socket
* thread. It currently throttles with a one second granularity, so
* may be a bit choppy.
*/
class ThrottleQueue : public nsIInputChannelThrottleQueue,
public nsITimerCallback,
public nsINamed {
public:
static already_AddRefed<nsIInputChannelThrottleQueue> Create();
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINPUTCHANNELTHROTTLEQUEUE
NS_DECL_NSITIMERCALLBACK
NS_DECL_NSINAMED
void QueueStream(ThrottleInputStream* aStream);
void DequeueStream(ThrottleInputStream* aStream);
protected:
ThrottleQueue();
virtual ~ThrottleQueue();
struct ThrottleEntry {
TimeStamp mTime;
uint32_t mBytesRead = 0;
};
nsTArray<ThrottleEntry> mReadEvents;
uint32_t mMeanBytesPerSecond{0};
uint32_t mMaxBytesPerSecond{0};
uint64_t mBytesProcessed{0};
nsTArray<RefPtr<ThrottleInputStream>> mAsyncEvents;
nsCOMPtr<nsITimer> mTimer;
bool mTimerArmed{false};
};
} // namespace net
} // namespace mozilla
#endif // mozilla_net_ThrottleQueue_h
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