Page Speed Optimization Libraries
1.7.30.2
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00001 /* 00002 * Copyright 2013 Google Inc. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http:///www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00034 00035 #ifndef NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_FINDER_SUPPORT_UTIL_H_ 00036 #define NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_FINDER_SUPPORT_UTIL_H_ 00037 00038 #include "net/instaweb/util/public/basictypes.h" 00039 #include "net/instaweb/util/public/property_cache.h" 00040 #include "net/instaweb/util/public/string.h" 00041 #include "net/instaweb/util/public/string_util.h" 00042 #include "net/instaweb/util/public/timer.h" 00043 00044 namespace net_instaweb { 00045 00047 const int64 kMinBeaconIntervalMs = 5 * Timer::kSecondMs; 00048 const int64 kBeaconTimeoutIntervalMs = Timer::kMinuteMs; 00049 00050 class CriticalKeys; 00051 class MessageHandler; 00052 class NonceGenerator; 00053 class RewriteDriver; 00054 00055 enum BeaconStatus { 00056 kDoNotBeacon, 00057 kBeaconNoNonce, 00058 kBeaconWithNonce 00059 }; 00060 00061 struct BeaconMetadata { 00062 BeaconMetadata() : status(kDoNotBeacon) { } 00063 BeaconStatus status; 00064 GoogleString nonce; 00065 }; 00066 00072 bool ValidateAndExpireNonce(int64 now_ms, StringPiece nonce, 00073 CriticalKeys* critical_keys); 00074 00081 void GetCriticalKeysFromProto(int64 support_percentage, 00082 const CriticalKeys& critical_keys, 00083 StringSet* keys); 00084 00090 void UpdateCriticalKeys(bool require_prior_support, 00091 const StringSet& new_set, int support_value, 00092 CriticalKeys* critical_keys); 00093 00101 void WriteCriticalKeysToPropertyCache( 00102 const StringSet& new_keys, StringPiece nonce, int support_interval, 00103 bool should_replace_prior_result, bool require_prior_support, 00104 StringPiece property_name, const PropertyCache* cache, 00105 const PropertyCache::Cohort* cohort, AbstractPropertyPage* page, 00106 MessageHandler* message_handler, Timer* timer); 00107 00116 void PrepareForBeaconInsertionHelper( 00117 const StringSet& keys, CriticalKeys* proto, int support_interval, 00118 NonceGenerator* nonce_generator, RewriteDriver* driver, 00119 BeaconMetadata* result); 00120 00121 } 00122 00123 #endif ///< NET_INSTAWEB_REWRITER_PUBLIC_CRITICAL_FINDER_SUPPORT_UTIL_H_