libreoffice-online/loolwsd/test/countloolkits.hpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_COUNTLOOLKITPROCESSES_HPP
#define INCLUDED_COUNTLOOLKITPROCESSES_HPP
#include <Poco/DirectoryIterator.h>
#include <Poco/StringTokenizer.h>
/// Counts the number of LoolKit process instances without wiating.
static
int getLoolKitProcessCount()
{
int result = 0;
for (auto i = Poco::DirectoryIterator(std::string("/proc")); i != Poco::DirectoryIterator(); ++i)
{
try
{
Poco::Path procEntry = i.path();
const std::string& fileName = procEntry.getFileName();
int pid;
std::size_t endPos = 0;
try
{
pid = std::stoi(fileName, &endPos);
}
catch (const std::invalid_argument&)
{
pid = 0;
}
if (pid > 1 && endPos == fileName.length())
{
Poco::FileInputStream stat(procEntry.toString() + "/stat");
std::string statString;
Poco::StreamCopier::copyToString(stat, statString);
Poco::StringTokenizer tokens(statString, " ");
if (tokens.count() > 3 && tokens[1] == "(loolkit)")
{
switch (tokens[2].c_str()[0])
{
case 'x':
case 'X': // Kinds of dead-ness.
case 'Z': // zombies
break; // ignore
default:
result++;
break;
}
// std::cout << "Process:" << pid << ", '" << tokens[1] << "'" << " state: " << tokens[2] << std::endl;
}
}
}
catch (const Poco::Exception&)
{
}
}
return result;
}
static
int countLoolKitProcesses(const int expected)
{
std::cerr << "Waiting to have " << expected << " loolkit processes. Loolkits: ";
// Retry for about 3 seconds.
const auto sleepMs = static_cast<int>(POLL_TIMEOUT_MS / 3);
const size_t repeat = (3000 / sleepMs) + 1;
auto count = getLoolKitProcessCount();
for (size_t i = 0; i < repeat; ++i)
{
std::cerr << count << ' ';
if (count == expected)
{
break;
}
// Give polls in the lool processes time to time out etc
Poco::Thread::sleep(sleepMs);
count = getLoolKitProcessCount();
}
std::cerr << std::endl;
if (expected != count)
{
std::cerr << "Found " << count << " LoKit processes but was expecting " << expected << "." << std::endl;
}
return count;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */