42fdb3b079
Also, drop the pointless use of POLL_TIMEOUT_MS, we first multiplied by it and then divided.
98 lines
2.9 KiB
C++
98 lines
2.9 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
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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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case 'x':
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case 'X': // Kinds of dead-ness.
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case 'Z': // zombies
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break; // ignore
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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 Poco::Exception&)
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{
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}
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}
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std::cerr << "Number of loolkit processes: " << result << std::endl;
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return result;
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}
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static
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int countLoolKitProcesses(const int expected)
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{
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// Fairly random number, I don't think there is any actual reason for using exactly this repeat
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// count.
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const size_t repeat = 21;
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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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if (count == expected)
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{
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return count;
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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(POLL_TIMEOUT_MS / 2);
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count = getLoolKitProcessCount();
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}
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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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