bool QLockFilePrivate::isApparentlyStale() const
{
qint64 pid;
QString hostname, appname;
if (!getLockInfo(&pid, &hostname, &appname))
return false;
if (hostname.isEmpty() || hostname == localHostName()) {
if (::kill(pid, 0) == -1 && errno == ESRCH)
return true; // PID doesn't exist anymore
}
const qint64 age = QFileInfo(fileName).lastModified().secsTo(QDateTime::currentDateTime()) * 1000;
return staleLockTime > 0 && age > staleLockTime;
}
bool QLockFilePrivate::isApparentlyStale() const
{
qint64 pid;
QString hostname, appname;
if (getLockInfo(&pid, &hostname, &appname)) {
if (hostname.isEmpty() || hostname == QString::fromLocal8Bit(localHostName())) {
if (::kill(pid, 0) == -1 && errno == ESRCH)
return true; // PID doesn't exist anymore
const QString processName = processNameByPid(pid);
if (!processName.isEmpty()) {
QFileInfo fi(appname);
if (fi.isSymLink())
fi.setFile(fi.symLinkTarget());
if (processName != fi.fileName())
return true; // PID got reused by a different application.
}
}
}
const qint64 age = QFileInfo(fileName).lastModified().msecsTo(QDateTime::currentDateTime());
return staleLockTime > 0 && age > staleLockTime;
}
bool QLockFilePrivate::isApparentlyStale() const
{
qint64 pid;
QString hostname, appname;
if (!getLockInfo(&pid, &hostname, &appname))
return false;
// On WinRT there seems to be no way of obtaining information about other
// processes due to sandboxing
#ifndef Q_OS_WINRT
HANDLE procHandle = ::OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
if (!procHandle)
return true;
// We got a handle but check if process is still alive
DWORD dwR = ::WaitForSingleObject(procHandle, 0);
::CloseHandle(procHandle);
if (dwR == WAIT_TIMEOUT)
return true;
#endif // !Q_OS_WINRT
const qint64 age = QFileInfo(fileName).lastModified().msecsTo(QDateTime::currentDateTime());
return staleLockTime > 0 && age > staleLockTime;
}
