git.m6w6.name Git - awesomized/libmemcached/blob - test/lib/Retry.hpp

   1 /*
   2     +--------------------------------------------------------------------+
   3     | libmemcached - C/C++ Client Library for memcached                  |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted under the terms of the BSD license.    |
   7     | You should have received a copy of the license in a bundled file   |
   8     | named LICENSE; in case you did not receive a copy you can review   |
   9     | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
  10     +--------------------------------------------------------------------+
  11     | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
  12     | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
  13     +--------------------------------------------------------------------+
  14 */
  15
  16 #pragma once
  17
  18 #include "common.hpp"
  19
  20 class Retry {
  21 public:
  22   using predicate = function<bool()>;
  23
  24   explicit Retry(predicate pred_, unsigned max_ = 10, chrono::milliseconds sleep_for_ = 100ms);
  25
  26   bool operator()();
  27
  28 private:
  29   const unsigned growth = 3;
  30   unsigned max;
  31   chrono::milliseconds sleep_for;
  32   predicate pred;
  33 };