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4f74c59334
There are no changes to behavior. Changes in this commit are all additions, and are easiest to review using "git diff -U0 --word-diff-regex=." options. Motivation for this change is to keep util functions with really generic names like "Split" and "Join" out of the global namespace so it is easier to see where these functions are defined, and so they don't interfere with function overloading, especially since the util library is a dependency of the kernel library and intended to be used with external code.
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// Copyright (c) 2018-2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <util/string.h>
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#include <util/threadnames.h>
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#include <mutex>
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#include <set>
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#include <string>
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#include <thread>
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#include <vector>
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#include <config/bitcoin-config.h> // IWYU pragma: keep
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#include <boost/test/unit_test.hpp>
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using util::ToString;
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BOOST_AUTO_TEST_SUITE(util_threadnames_tests)
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const std::string TEST_THREAD_NAME_BASE = "test_thread.";
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/**
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* Run a bunch of threads to all call util::ThreadRename.
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*
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* @return the set of name each thread has after attempted renaming.
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*/
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std::set<std::string> RenameEnMasse(int num_threads)
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{
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std::vector<std::thread> threads;
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std::set<std::string> names;
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std::mutex lock;
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auto RenameThisThread = [&](int i) {
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util::ThreadRename(TEST_THREAD_NAME_BASE + ToString(i));
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std::lock_guard<std::mutex> guard(lock);
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names.insert(util::ThreadGetInternalName());
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};
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threads.reserve(num_threads);
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for (int i = 0; i < num_threads; ++i) {
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threads.emplace_back(RenameThisThread, i);
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}
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for (std::thread& thread : threads) thread.join();
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return names;
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}
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/**
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* Rename a bunch of threads with the same basename (expect_multiple=true), ensuring suffixes are
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* applied properly.
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*/
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BOOST_AUTO_TEST_CASE(util_threadnames_test_rename_threaded)
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{
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#if !defined(HAVE_THREAD_LOCAL)
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// This test doesn't apply to platforms where we don't have thread_local.
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return;
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#endif
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std::set<std::string> names = RenameEnMasse(100);
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BOOST_CHECK_EQUAL(names.size(), 100U);
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// Names "test_thread.[n]" should exist for n = [0, 99]
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for (int i = 0; i < 100; ++i) {
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BOOST_CHECK(names.find(TEST_THREAD_NAME_BASE + ToString(i)) != names.end());
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}
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}
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BOOST_AUTO_TEST_SUITE_END()
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