Index: net/dns/host_cache.h |
diff --git a/net/dns/host_cache.h b/net/dns/host_cache.h |
deleted file mode 100644 |
index e8628fb04ecbc1b64b6480502d41b94d7cb11a00..0000000000000000000000000000000000000000 |
--- a/net/dns/host_cache.h |
+++ /dev/null |
@@ -1,124 +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_DNS_HOST_CACHE_H_ |
-#define NET_DNS_HOST_CACHE_H_ |
- |
-#include <functional> |
-#include <string> |
- |
-#include "base/gtest_prod_util.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "base/threading/non_thread_safe.h" |
-#include "base/time/time.h" |
-#include "net/base/address_family.h" |
-#include "net/base/address_list.h" |
-#include "net/base/expiring_cache.h" |
-#include "net/base/net_export.h" |
- |
-namespace net { |
- |
-// Cache used by HostResolver to map hostnames to their resolved result. |
-class NET_EXPORT HostCache : NON_EXPORTED_BASE(public base::NonThreadSafe) { |
- public: |
- // Stores the latest address list that was looked up for a hostname. |
- struct NET_EXPORT Entry { |
- Entry(int error, const AddressList& addrlist, base::TimeDelta ttl); |
- // Use when |ttl| is unknown. |
- Entry(int error, const AddressList& addrlist); |
- ~Entry(); |
- |
- bool has_ttl() const { return ttl >= base::TimeDelta(); } |
- |
- // The resolve results for this entry. |
- int error; |
- AddressList addrlist; |
- // TTL obtained from the nameserver. Negative if unknown. |
- base::TimeDelta ttl; |
- }; |
- |
- struct Key { |
- Key(const std::string& hostname, AddressFamily address_family, |
- HostResolverFlags host_resolver_flags) |
- : hostname(hostname), |
- address_family(address_family), |
- host_resolver_flags(host_resolver_flags) {} |
- |
- bool operator<(const Key& other) const { |
- // |address_family| and |host_resolver_flags| are compared before |
- // |hostname| under assumption that integer comparisons are faster than |
- // string comparisons. |
- if (address_family != other.address_family) |
- return address_family < other.address_family; |
- if (host_resolver_flags != other.host_resolver_flags) |
- return host_resolver_flags < other.host_resolver_flags; |
- return hostname < other.hostname; |
- } |
- |
- std::string hostname; |
- AddressFamily address_family; |
- HostResolverFlags host_resolver_flags; |
- }; |
- |
- struct EvictionHandler { |
- void Handle(const Key& key, |
- const Entry& entry, |
- const base::TimeTicks& expiration, |
- const base::TimeTicks& now, |
- bool onGet) const; |
- }; |
- |
- typedef ExpiringCache<Key, Entry, base::TimeTicks, |
- std::less<base::TimeTicks>, |
- EvictionHandler> EntryMap; |
- |
- // Constructs a HostCache that stores up to |max_entries|. |
- explicit HostCache(size_t max_entries); |
- |
- ~HostCache(); |
- |
- // Returns a pointer to the entry for |key|, which is valid at time |
- // |now|. If there is no such entry, returns NULL. |
- const Entry* Lookup(const Key& key, base::TimeTicks now); |
- |
- // Overwrites or creates an entry for |key|. |
- // |entry| is the value to set, |now| is the current time |
- // |ttl| is the "time to live". |
- void Set(const Key& key, |
- const Entry& entry, |
- base::TimeTicks now, |
- base::TimeDelta ttl); |
- |
- // Empties the cache |
- void clear(); |
- |
- // Returns the number of entries in the cache. |
- size_t size() const; |
- |
- // Following are used by net_internals UI. |
- size_t max_entries() const; |
- |
- const EntryMap& entries() const; |
- |
- // Creates a default cache. |
- static scoped_ptr<HostCache> CreateDefaultCache(); |
- |
- private: |
- FRIEND_TEST_ALL_PREFIXES(HostCacheTest, NoCache); |
- |
- // Returns true if this HostCache can contain no entries. |
- bool caching_is_disabled() const { |
- return entries_.max_entries() == 0; |
- } |
- |
- // Map from hostname (presumably in lowercase canonicalized format) to |
- // a resolved result entry. |
- EntryMap entries_; |
- |
- DISALLOW_COPY_AND_ASSIGN(HostCache); |
-}; |
- |
-} // namespace net |
- |
-#endif // NET_DNS_HOST_CACHE_H_ |