| Index: net/dns/mdns_cache.h
|
| diff --git a/net/dns/mdns_cache.h b/net/dns/mdns_cache.h
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| deleted file mode 100644
|
| index 6a38fc8f0e28dc4d99cbcce35681cdec5ecebe5b..0000000000000000000000000000000000000000
|
| --- a/net/dns/mdns_cache.h
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| +++ /dev/null
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| @@ -1,120 +0,0 @@
|
| -// Copyright (c) 2013 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_MDNS_CACHE_H_
|
| -#define NET_DNS_MDNS_CACHE_H_
|
| -
|
| -#include <map>
|
| -#include <string>
|
| -#include <vector>
|
| -
|
| -#include "base/callback.h"
|
| -#include "base/memory/scoped_ptr.h"
|
| -#include "base/time/time.h"
|
| -#include "net/base/net_export.h"
|
| -
|
| -namespace net {
|
| -
|
| -class ParsedDnsRecord;
|
| -class RecordParsed;
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| -
|
| -// mDNS Cache
|
| -// This is a cache of mDNS records. It keeps track of expiration times and is
|
| -// guaranteed not to return expired records. It also has facilities for timely
|
| -// record expiration.
|
| -class NET_EXPORT_PRIVATE MDnsCache {
|
| - public:
|
| - // Key type for the record map. It is a 3-tuple of type, name and optional
|
| - // value ordered by type, then name, then optional value. This allows us to
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| - // query for all records of a certain type and name, while also allowing us
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| - // to set records of a certain type, name and optionally value as unique.
|
| - class Key {
|
| - public:
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| - Key(unsigned type, const std::string& name, const std::string& optional);
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| - Key(const Key&);
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| - Key& operator=(const Key&);
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| - ~Key();
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| - bool operator<(const Key& key) const;
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| - bool operator==(const Key& key) const;
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| -
|
| - unsigned type() const { return type_; }
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| - const std::string& name() const { return name_; }
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| - const std::string& optional() const { return optional_; }
|
| -
|
| - // Create the cache key corresponding to |record|.
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| - static Key CreateFor(const RecordParsed* record);
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| - private:
|
| - unsigned type_;
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| - std::string name_;
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| - std::string optional_;
|
| - };
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| -
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| - typedef base::Callback<void(const RecordParsed*)> RecordRemovedCallback;
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| -
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| - enum UpdateType {
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| - RecordAdded,
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| - RecordChanged,
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| - RecordRemoved,
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| - NoChange
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| - };
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| -
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| - MDnsCache();
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| - ~MDnsCache();
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| -
|
| - // Return value indicates whether the record was added, changed
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| - // (existed previously with different value) or not changed (existed
|
| - // previously with same value).
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| - UpdateType UpdateDnsRecord(scoped_ptr<const RecordParsed> record);
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| -
|
| - // Check cache for record with key |key|. Return the record if it exists, or
|
| - // NULL if it doesn't.
|
| - const RecordParsed* LookupKey(const Key& key);
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| -
|
| - // Return records with type |type| and name |name|. Expired records will not
|
| - // be returned. If |type| is zero, return all records with name |name|.
|
| - void FindDnsRecords(unsigned type,
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| - const std::string& name,
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| - std::vector<const RecordParsed*>* records,
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| - base::Time now) const;
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| -
|
| - // Remove expired records, call |record_removed_callback| for every removed
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| - // record.
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| - void CleanupRecords(base::Time now,
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| - const RecordRemovedCallback& record_removed_callback);
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| -
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| - // Returns a time less than or equal to the next time a record will expire.
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| - // Is updated when CleanupRecords or UpdateDnsRecord are called. Returns
|
| - // base::Time when the cache is empty.
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| - base::Time next_expiration() const { return next_expiration_; }
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| -
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| - // Remove a record from the cache. Returns a scoped version of the pointer
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| - // passed in if it was removed, scoped null otherwise.
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| - scoped_ptr<const RecordParsed> RemoveRecord(const RecordParsed* record);
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| -
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| - void Clear();
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| -
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| - private:
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| - typedef std::map<Key, const RecordParsed*> RecordMap;
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| -
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| - // Get the effective expiration of a cache entry, based on its creation time
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| - // and TTL. Does adjustments so entries with a TTL of zero will have a
|
| - // nonzero TTL, as explained in RFC 6762 Section 10.1.
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| - static base::Time GetEffectiveExpiration(const RecordParsed* entry);
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| -
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| - // Get optional part of the DNS key for shared records. For example, in PTR
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| - // records this is the pointed domain, since multiple PTR records may exist
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| - // for the same name.
|
| - static std::string GetOptionalFieldForRecord(
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| - const RecordParsed* record);
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| -
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| - RecordMap mdns_cache_;
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| -
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| - base::Time next_expiration_;
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| -
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| - DISALLOW_COPY_AND_ASSIGN(MDnsCache);
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| -};
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| -
|
| -} // namespace net
|
| -
|
| -#endif // NET_DNS_MDNS_CACHE_H_
|
|
|