| /** @file |
| |
| Http2FrequencyCounter |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| #include "Http2FrequencyCounter.h" |
| |
| void |
| Http2FrequencyCounter::increment(uint16_t amount) |
| { |
| ink_hrtime hrtime_sec = this->_get_hrtime(); |
| uint8_t counter_index = ((hrtime_sec % 60) >= 30); |
| uint8_t last_index = ((this->_last_update % 60) >= 30); |
| |
| if (hrtime_sec - this->_last_update > 60) { |
| this->_count[0] = 0; |
| this->_count[1] = 0; |
| } else if (hrtime_sec - this->_last_update > 30) { |
| if (counter_index == last_index) { |
| this->_count[0] = 0; |
| this->_count[1] = 0; |
| } else { |
| this->_count[counter_index] = 0; |
| } |
| } else if (counter_index != last_index) { // hrtime_sec - this->_last_update is less than 30 |
| this->_count[counter_index] = 0; |
| } |
| |
| this->_count[counter_index] += amount; |
| this->_last_update = hrtime_sec; |
| } |
| |
| uint32_t |
| Http2FrequencyCounter::get_count() |
| { |
| return this->_count[0] + this->_count[1]; |
| } |
| |
| ink_hrtime |
| Http2FrequencyCounter::_get_hrtime() |
| { |
| return ink_hrtime_to_sec(Thread::get_hrtime()); |
| } |