extension_throttle_entry.h | Explore in Territory

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_RENDERER_EXTENSION_THROTTLE_ENTRY_H_
#define EXTENSIONS_RENDERER_EXTENSION_THROTTLE_ENTRY_H_

#include <stdint.h>

#include <string>

#include "base/containers/queue.h"
#include "base/time/time.h"
#include "net/base/backoff_entry.h"

namespace extensions {

// ExtensionThrottleEntry represents an entry of ExtensionThrottleManager.
// It analyzes requests of a specific URL over some period of time, in order to
// deduce the back-off time for every request.
// The back-off algorithm consists of two parts. Firstly, exponential back-off
// is used when receiving 5XX server errors or malformed response bodies.
// The exponential back-off rule is enforced by URLRequestHttpJob. Any
// request sent during the back-off period will be cancelled.
// Secondly, a sliding window is used to count recent requests to a given
// destination and provide guidance (to the application level only) on whether
// too many requests have been sent and when a good time to send the next one
// would be. This is never used to deny requests at the network level.
class ExtensionThrottleEntry { … };

}  // namespace extensions

#endif  // EXTENSIONS_RENDERER_EXTENSION_THROTTLE_ENTRY_H_
chromium/extensions/renderer/extension_throttle_entry.h
