Index: net/url_request/url_request_throttler_manager.h |
diff --git a/net/url_request/url_request_throttler_manager.h b/net/url_request/url_request_throttler_manager.h |
deleted file mode 100644 |
index ee2f2212799342f92e3b0c031f0d360da7c8b3fc..0000000000000000000000000000000000000000 |
--- a/net/url_request/url_request_throttler_manager.h |
+++ /dev/null |
@@ -1,166 +0,0 @@ |
-// Copyright (c) 2012 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_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_ |
-#define NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_ |
- |
-#include <map> |
-#include <set> |
-#include <string> |
- |
-#include "base/basictypes.h" |
-#include "base/memory/ref_counted.h" |
-#include "base/threading/non_thread_safe.h" |
-#include "base/threading/platform_thread.h" |
-#include "net/base/net_export.h" |
-#include "net/base/network_change_notifier.h" |
-#include "net/url_request/url_request_throttler_entry.h" |
-#include "url/gurl.h" |
- |
-namespace net { |
- |
-class BoundNetLog; |
-class NetLog; |
- |
-// Class that registers URL request throttler entries for URLs being accessed |
-// in order to supervise traffic. URL requests for HTTP contents should |
-// register their URLs in this manager on each request. |
-// |
-// URLRequestThrottlerManager maintains a map of URL IDs to URL request |
-// throttler entries. It creates URL request throttler entries when new URLs |
-// are registered, and does garbage collection from time to time in order to |
-// clean out outdated entries. URL ID consists of lowercased scheme, host, port |
-// and path. All URLs converted to the same ID will share the same entry. |
-class NET_EXPORT URLRequestThrottlerManager |
- : NON_EXPORTED_BASE(public base::NonThreadSafe), |
- public NetworkChangeNotifier::IPAddressObserver, |
- public NetworkChangeNotifier::ConnectionTypeObserver { |
- public: |
- URLRequestThrottlerManager(); |
- ~URLRequestThrottlerManager() override; |
- |
- // Must be called for every request, returns the URL request throttler entry |
- // associated with the URL. The caller must inform this entry of some events. |
- // Please refer to url_request_throttler_entry_interface.h for further |
- // informations. |
- scoped_refptr<URLRequestThrottlerEntryInterface> RegisterRequestUrl( |
- const GURL& url); |
- |
- // Adds the given host to a list of sites for which exponential back-off |
- // throttling will be disabled. Subdomains are not included, so they |
- // must be added separately. |
- void AddToOptOutList(const std::string& host); |
- |
- // Registers a new entry in this service and overrides the existing entry (if |
- // any) for the URL. The service will hold a reference to the entry. |
- // It is only used by unit tests. |
- void OverrideEntryForTests(const GURL& url, URLRequestThrottlerEntry* entry); |
- |
- // Explicitly erases an entry. |
- // This is useful to remove those entries which have got infinite lifetime and |
- // thus won't be garbage collected. |
- // It is only used by unit tests. |
- void EraseEntryForTests(const GURL& url); |
- |
- // Turns threading model verification on or off. Any code that correctly |
- // uses the network stack should preferably call this function to enable |
- // verification of correct adherence to the network stack threading model. |
- void set_enable_thread_checks(bool enable); |
- bool enable_thread_checks() const; |
- |
- // Whether throttling is enabled or not. |
- void set_enforce_throttling(bool enforce); |
- bool enforce_throttling(); |
- |
- // Sets the NetLog instance to use. |
- void set_net_log(NetLog* net_log); |
- NetLog* net_log() const; |
- |
- // IPAddressObserver interface. |
- void OnIPAddressChanged() override; |
- |
- // ConnectionTypeObserver interface. |
- void OnConnectionTypeChanged( |
- NetworkChangeNotifier::ConnectionType type) override; |
- |
- // Method that allows us to transform a URL into an ID that can be used in our |
- // map. Resulting IDs will be lowercase and consist of the scheme, host, port |
- // and path (without query string, fragment, etc.). |
- // If the URL is invalid, the invalid spec will be returned, without any |
- // transformation. |
- std::string GetIdFromUrl(const GURL& url) const; |
- |
- // Method that ensures the map gets cleaned from time to time. The period at |
- // which garbage collecting happens is adjustable with the |
- // kRequestBetweenCollecting constant. |
- void GarbageCollectEntriesIfNecessary(); |
- |
- // Method that does the actual work of garbage collecting. |
- void GarbageCollectEntries(); |
- |
- // When we switch from online to offline or change IP addresses, we |
- // clear all back-off history. This is a precaution in case the change in |
- // online state now lets us communicate without error with servers that |
- // we were previously getting 500 or 503 responses from (perhaps the |
- // responses are from a badly-written proxy that should have returned a |
- // 502 or 504 because it's upstream connection was down or it had no route |
- // to the server). |
- void OnNetworkChange(); |
- |
- // Used by tests. |
- int GetNumberOfEntriesForTests() const { return url_entries_.size(); } |
- |
- private: |
- // From each URL we generate an ID composed of the scheme, host, port and path |
- // that allows us to uniquely map an entry to it. |
- typedef std::map<std::string, scoped_refptr<URLRequestThrottlerEntry> > |
- UrlEntryMap; |
- |
- // We maintain a set of hosts that have opted out of exponential |
- // back-off throttling. |
- typedef std::set<std::string> OptOutHosts; |
- |
- // Maximum number of entries that we are willing to collect in our map. |
- static const unsigned int kMaximumNumberOfEntries; |
- // Number of requests that will be made between garbage collection. |
- static const unsigned int kRequestsBetweenCollecting; |
- |
- // Map that contains a list of URL ID and their matching |
- // URLRequestThrottlerEntry. |
- UrlEntryMap url_entries_; |
- |
- // Set of hosts that have opted out. |
- OptOutHosts opt_out_hosts_; |
- |
- // This keeps track of how many requests have been made. Used with |
- // GarbageCollectEntries. |
- unsigned int requests_since_last_gc_; |
- |
- // Valid after construction. |
- GURL::Replacements url_id_replacements_; |
- |
- // Certain tests do not obey the net component's threading policy, so we |
- // keep track of whether we're being used by tests, and turn off certain |
- // checks. |
- // |
- // TODO(joi): See if we can fix the offending unit tests and remove this |
- // workaround. |
- bool enable_thread_checks_; |
- |
- // Initially false, switches to true once we have logged because of back-off |
- // being disabled for localhost. |
- bool logged_for_localhost_disabled_; |
- |
- // NetLog to use, if configured. |
- BoundNetLog net_log_; |
- |
- // Valid once we've registered for network notifications. |
- base::PlatformThreadId registered_from_thread_; |
- |
- DISALLOW_COPY_AND_ASSIGN(URLRequestThrottlerManager); |
-}; |
- |
-} // namespace net |
- |
-#endif // NET_URL_REQUEST_URL_REQUEST_THROTTLER_MANAGER_H_ |