112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_COUNTLOOLKITPROCESSES_HPP
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#define INCLUDED_COUNTLOOLKITPROCESSES_HPP
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#include <Poco/DirectoryIterator.h>
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#include <Poco/StringTokenizer.h>
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/// Counts the number of LoolKit process instances without wiating.
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static int getLoolKitProcessCount()
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{
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int result = 0;
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for (auto i = Poco::DirectoryIterator(std::string("/proc")); i != Poco::DirectoryIterator(); ++i)
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{
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try
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{
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Poco::Path procEntry = i.path();
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const std::string& fileName = procEntry.getFileName();
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int pid;
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std::size_t endPos = 0;
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try
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{
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pid = std::stoi(fileName, &endPos);
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}
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catch (const std::invalid_argument&)
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{
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pid = 0;
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}
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if (pid > 1 && endPos == fileName.length())
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{
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Poco::FileInputStream stat(procEntry.toString() + "/stat");
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std::string statString;
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Poco::StreamCopier::copyToString(stat, statString);
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Poco::StringTokenizer tokens(statString, " ");
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if (tokens.count() > 3 && tokens[1] == "(loolkit)")
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{
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switch (tokens[2].c_str()[0])
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{
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// Dead marker for old and new kernels.
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case 'x':
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case 'X':
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// Don't ignore zombies.
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break;
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default:
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++result;
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break;
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}
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// std::cout << "Process:" << pid << ", '" << tokens[1] << "'" << " state: " << tokens[2] << std::endl;
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}
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}
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}
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catch (const std::exception& ex)
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{
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// 'File not found' is common here, since there is a race
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// between iterating the /proc directory and opening files,
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// the process in question might have been gone.
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//std::cerr << "Error while iterating processes: " << ex.what() << std::endl;
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}
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}
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return result;
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}
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static int countLoolKitProcesses(const int expected)
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{
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std::cerr << "Waiting to have " << expected << " loolkit processes. Loolkits: ";
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// We have to wait at least for the time the call docBroker->autoSave(forceSave,
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// COMMAND_TIMEOUT_MS)) in ClientRequestHandler:::handleGetRequest() can take to wait for
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// information about a successful auto-save. In the HTTPWSTest::testConnectNoLoad() there is
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// nothing to auto-save, so it waits in vain.
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// This does not need to depend on any constant from Common.hpp.
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// The shorter the better (the quicker the test runs).
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const auto sleepMs = 100;
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// This has to cause waiting for at least COMMAND_TIMEOUT_MS. Add one second for safety.
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const size_t repeat = ((COMMAND_TIMEOUT_MS + 1000) / sleepMs);
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auto count = getLoolKitProcessCount();
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for (size_t i = 0; i < repeat; ++i)
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{
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std::cerr << count << ' ';
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if (count == expected)
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{
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break;
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}
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// Give polls in the lool processes time to time out etc
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Poco::Thread::sleep(sleepMs);
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count = getLoolKitProcessCount();
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}
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std::cerr << std::endl;
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if (expected != count)
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{
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std::cerr << "Found " << count << " LoKit processes but was expecting " << expected << "." << std::endl;
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}
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return count;
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}
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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