| /* |
| * |
| * 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 "proton/reconnect_timer.hpp" |
| #include "proton/error.hpp" |
| #include "msg.hpp" |
| #include <proton/types.h> |
| #include <proton/reactor.h> |
| |
| namespace proton { |
| |
| reconnect_timer::reconnect_timer(uint32_t first, int32_t max, uint32_t increment, |
| bool doubling, int32_t max_retries, int32_t timeout) : |
| first_delay_(first), max_delay_(max), increment_(increment), doubling_(doubling), |
| max_retries_(max_retries), timeout_(timeout), retries_(0), next_delay_(-1), timeout_deadline_(0) |
| {} |
| |
| void reconnect_timer::reset() { |
| retries_ = 0; |
| next_delay_ = 0; |
| timeout_deadline_ = 0; |
| } |
| |
| int reconnect_timer::next_delay(timestamp now) { |
| retries_++; |
| if (max_retries_ >= 0 && retries_ > max_retries_) |
| return -1; |
| |
| if (retries_ == 1) { |
| if (timeout_ >= duration(0)) |
| timeout_deadline_ = now + timeout_; |
| next_delay_ = first_delay_; |
| } else if (retries_ == 2) { |
| next_delay_ = next_delay_ + increment_; |
| } else { |
| next_delay_ = next_delay_ + ( doubling_ ? next_delay_ : increment_ ); |
| } |
| if (timeout_deadline_ != timestamp(0) && now >= timeout_deadline_) |
| return -1; |
| if (max_delay_ >= duration(0) && next_delay_ > max_delay_) |
| next_delay_ = max_delay_; |
| if (timeout_deadline_ != timestamp(0) && (now + next_delay_ > timeout_deadline_)) |
| next_delay_ = timeout_deadline_ - now; |
| return next_delay_.milliseconds(); |
| } |
| |
| } |