00001 #ifndef QPID_BROKER_RATETRACKER_H 00002 #define QPID_BROKER_RATETRACKER_H 00003 00004 /* 00005 * 00006 * Licensed to the Apache Software Foundation (ASF) under one 00007 * or more contributor license agreements. See the NOTICE file 00008 * distributed with this work for additional information 00009 * regarding copyright ownership. The ASF licenses this file 00010 * to you under the Apache License, Version 2.0 (the 00011 * "License"); you may not use this file except in compliance 00012 * with the License. You may obtain a copy of the License at 00013 * 00014 * http://www.apache.org/licenses/LICENSE-2.0 00015 * 00016 * Unless required by applicable law or agreed to in writing, 00017 * software distributed under the License is distributed on an 00018 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 00019 * KIND, either express or implied. See the License for the 00020 * specific language governing permissions and limitations 00021 * under the License. 00022 * 00023 */ 00024 00025 #include "qpid/sys/Time.h" 00026 00027 namespace qpid { 00028 namespace broker { 00029 00034 class RateTracker 00035 { 00036 public: 00037 RateTracker(); 00043 RateTracker& operator++(); 00049 double sampleRatePerSecond(); 00050 private: 00051 volatile int32_t currentCount; 00052 int32_t lastCount; 00053 qpid::sys::AbsTime lastTime; 00054 }; 00055 }} // namespace qpid::broker 00056 00057 #endif