ProcDataList processList(const ProcDataList & /*previous*/)
{
ProcDataList rc;
PROCESSENTRY32 pe;
pe.dwSize = sizeof(PROCESSENTRY32);
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (snapshot == INVALID_HANDLE_VALUE)
return rc;
for (bool hasNext = Process32First(snapshot, &pe);
hasNext;
hasNext = Process32Next(snapshot, &pe)) {
ProcData procData;
procData.ppid = QString::number(pe.th32ProcessID);
procData.name = QString::fromUtf16(reinterpret_cast<ushort *>(pe.szExeFile));
const ProcessInfo processInf = processInfo(pe.th32ProcessID);
procData.image = processInf.imageName;
procData.user = processInf.processOwner;
procData.abi = s_abiDetector.abiForProcess(pe.th32ProcessID);
rc.push_back(procData);
}
CloseHandle(snapshot);
return rc;
}
// Determine UNIX processes by running ps
static ProcDataList unixProcessListPS(const ProcDataList &previous)
{
#ifdef Q_OS_MAC
// command goes last, otherwise it is cut off
static const char formatC[] = "pid state user command";
#else
static const char formatC[] = "pid,state,user,cmd";
#endif
ProcDataList rc;
QProcess psProcess;
QStringList args;
args << QLatin1String("-e") << QLatin1String("-o") << QLatin1String(formatC);
psProcess.start(QLatin1String("ps"), args);
if (!psProcess.waitForStarted()) {
return rc;
}
psProcess.waitForFinished();
QByteArray output = psProcess.readAllStandardOutput();
// Split "457 S+ /Users/foo.app"
const QStringList lines = QString::fromLocal8Bit(output).split(QLatin1Char('\n'));
const int lineCount = lines.size();
const QChar blank = QLatin1Char(' ');
for (int l = 1; l < lineCount; l++) { // Skip header
const QString line = lines.at(l).simplified();
// we can't just split on blank as the process name might
// contain them
const int endOfPid = line.indexOf(blank);
const int endOfState = line.indexOf(blank, endOfPid+1);
const int endOfUser = line.indexOf(blank, endOfState+1);
if (endOfPid >= 0 && endOfState >= 0 && endOfUser >= 0) {
ProcData procData;
procData.ppid = line.left(endOfPid);
procData.state = line.mid(endOfPid+1, endOfState-endOfPid-1);
procData.user = line.mid(endOfState+1, endOfUser-endOfState-1);
procData.name = line.right(line.size()-endOfUser-1);
ProcDataList::ConstIterator it =
std::find_if(previous.constBegin(), previous.constEnd(),
PidAndNameMatch(procData.ppid, procData.name));
if (it != previous.constEnd()) {
procData.type = it->type;
} else {
procData.type = processIsQtApp(procData.ppid) ?
ProcData::QtApp :
ProcData::NoQtApp;
}
rc.push_back(procData);
}
}
return rc;
}
// Determine UNIX processes by reading "/proc". Default to ps if
// it does not exist
ProcDataList processList(const ProcDataList& previous)
{
const QDir procDir(QLatin1String("/proc/"));
if (!procDir.exists())
return unixProcessListPS(previous);
ProcDataList rc;
const QStringList procIds = procDir.entryList();
if (procIds.isEmpty())
return rc;
foreach (const QString &procId, procIds) {
if (!isUnixProcessId(procId))
continue;
QString filename = QLatin1String("/proc/");
filename += procId;
filename += QLatin1String("/stat");
QFile file(filename);
if (!file.open(QIODevice::ReadOnly))
continue; // process may have exited
const QStringList data = QString::fromLocal8Bit(file.readAll()).split(' ');
ProcData proc;
proc.ppid = procId;
proc.name = data.at(1);
if (proc.name.startsWith(QLatin1Char('(')) && proc.name.endsWith(QLatin1Char(')'))) {
proc.name.truncate(proc.name.size() - 1);
proc.name.remove(0, 1);
}
proc.state = data.at(2);
// PPID is element 3
proc.user = QFileInfo(file).owner();
file.close();
QFile cmdFile(QLatin1String("/proc/") + procId + QLatin1String("/cmdline"));
if(cmdFile.open(QFile::ReadOnly)) {
QByteArray cmd = cmdFile.readAll();
cmd.replace('\0', ' ');
if ( !cmd.isEmpty() )
proc.name = QString::fromLocal8Bit(cmd);
}
cmdFile.close();
QFile maps(QLatin1String("/proc/") + procId + QLatin1String("/maps"));
if (!maps.open(QIODevice::ReadOnly))
continue; // process may have exited
proc.type = ProcData::NoQtApp;
forever {
const QByteArray line = maps.readLine();
if (line.isEmpty()) {
break;
}
if (line.contains(QByteArray("/libQtCore.so"))) {
proc.type = ProcData::QtApp;
break;
}
}
rc.push_back(proc);
}
return rc;
}
