74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
/*
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* This file is open source software, licensed to you under the terms
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* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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* distributed with this work for additional information regarding copyright
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* ownership. You may not use this file except in compliance with the License.
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*
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Copyright (C) 2022 ScyllaDB
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*/
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#include <seastar/core/thread.hh>
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#include <seastar/core/manual_clock.hh>
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#include <seastar/testing/test_case.hh>
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#include <seastar/util/shared_token_bucket.hh>
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using namespace seastar;
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using namespace std::chrono_literals;
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SEASTAR_TEST_CASE(test_basic_non_capped_loop) {
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internal::shared_token_bucket<uint64_t, std::ratio<1>, internal::capped_release::no, manual_clock> tb(1, 1, 0, false);
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// Grab one token and make sure it's only available in 1s
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auto th = tb.grab(1);
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BOOST_REQUIRE(tb.deficiency(th) > 0);
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manual_clock::advance(1s);
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tb.replenish(manual_clock::now());
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BOOST_REQUIRE(tb.deficiency(th) == 0);
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// Grab one more token and check the same
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th = tb.grab(1);
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BOOST_REQUIRE(tb.deficiency(th) > 0);
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manual_clock::advance(1s);
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tb.replenish(manual_clock::now());
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BOOST_REQUIRE(tb.deficiency(th) == 0);
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return make_ready_future<>();
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}
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SEASTAR_TEST_CASE(test_basic_capped_loop) {
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internal::shared_token_bucket<uint64_t, std::ratio<1>, internal::capped_release::yes, manual_clock> tb(1, 1, 0, false);
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// Grab on token and make sure it's only available in 1s
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auto th = tb.grab(1);
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BOOST_REQUIRE(tb.deficiency(th) > 0);
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manual_clock::advance(1s);
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tb.replenish(manual_clock::now());
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BOOST_REQUIRE(tb.deficiency(th) == 0);
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// The 2nd time this trick only works after the 1st token is explicitly released
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th = tb.grab(1);
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BOOST_REQUIRE(tb.deficiency(th) > 0);
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manual_clock::advance(1s);
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tb.replenish(manual_clock::now());
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BOOST_REQUIRE(tb.deficiency(th) > 0);
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manual_clock::advance(1s);
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tb.release(1);
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tb.replenish(manual_clock::now());
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BOOST_REQUIRE(tb.deficiency(th) == 0);
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return make_ready_future<>();
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}
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