f3eade2f62
Drop the AGPL license in favor of a source-available license. See the blog post [1] for details. [1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*/
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#pragma once
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#include <seastar/core/sleep.hh>
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#include <seastar/util/noncopyable_function.hh>
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#include "seastarx.hh"
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inline
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void eventually(noncopyable_function<void ()> f, size_t max_attempts = 17) {
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size_t attempts = 0;
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while (true) {
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try {
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f();
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break;
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} catch (...) {
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if (++attempts < max_attempts) {
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sleep(std::chrono::milliseconds(1 << attempts)).get();
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} else {
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throw;
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}
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}
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}
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}
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inline
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bool eventually_true(noncopyable_function<bool ()> f) {
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const unsigned max_attempts = 15;
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unsigned attempts = 0;
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while (true) {
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if (f()) {
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return true;
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}
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if (++attempts < max_attempts) {
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seastar::sleep(std::chrono::milliseconds(1 << attempts)).get();
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} else {
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return false;
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}
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}
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return false;
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}
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#define REQUIRE_EVENTUALLY_EQUAL(a, b) BOOST_REQUIRE(eventually_true([&] { return a == b; }))
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#define CHECK_EVENTUALLY_EQUAL(a, b) BOOST_CHECK(eventually_true([&] { return a == b; }))
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