uint myth_system(const QString &command, uint flags, uint timeout)
{
flags |= kMSRunShell | kMSAutoCleanup;
MythSystem *ms = new MythSystem(command, flags);
ms->Run(timeout);
uint result = ms->Wait(0);
if (!ms->GetSetting("RunInBackground"))
delete ms;
return result;
}
void myth_system_jump_abort(void)
{
MythSystem ms;
ms.JumpAbort();
}
/**
* \brief Returns the device special file associated with the /sys/block node.
* \param sysfs system filesystem path of removable block device.
* \return path to the device special file
*/
QString MediaMonitorUnix::GetDeviceFile(const QString &sysfs)
{
QString msg = LOC + ":GetDeviceFile(" + sysfs + ")";
QString ret = sysfs;
// In case of error, a working default? (device names usually match)
ret.replace(QRegExp(".*/"), "/dev/");
#ifdef linux
#if HAVE_LIBUDEV
// Use libudev to determine the name
ret.clear();
struct udev *udev = udev_new();
if (udev != NULL)
{
struct udev_device *device =
udev_device_new_from_syspath(udev, sysfs.toAscii().constData());
if (device != NULL)
{
const char *name = udev_device_get_devnode(device);
if (name != NULL)
ret = tr(name);
else
{
// This can happen when udev sends an AddDevice for a block
// device with partitions. FindPartition locates a partition
// in sysfs but udev hasn't created the devnode for it yet.
// Udev will send another AddDevice for the partition later.
LOG(VB_MEDIA, LOG_DEBUG, msg + " devnode not (yet) known");
}
udev_device_unref(device);
}
else
{
LOG(VB_GENERAL, LOG_ALERT,
msg + " udev_device_new_from_syspath returned NULL");
ret = "";
}
udev_unref(udev);
}
else
LOG(VB_GENERAL, LOG_ALERT,
"MediaMonitorUnix::GetDeviceFile udev_new failed");
#else // HAVE_LIBUDEV
// Use udevadm info to determine the name
QStringList args;
args << "info" << "-q" << "name"
<< "-rp" << sysfs;
uint flags = kMSStdOut | kMSBuffered;
if (VERBOSE_LEVEL_CHECK(VB_MEDIA, LOG_DEBUG))
flags |= kMSStdErr;
// TODO: change this to a MythSystem on the stack?
MythSystem *udevinfo = new MythSystem("udevinfo", args, flags);
udevinfo->Run(4);
if( udevinfo->Wait() != GENERIC_EXIT_OK )
{
delete udevinfo;
return ret;
}
if (VERBOSE_LEVEL_CHECK(VB_MEDIA, LOG_DEBUG))
{
QTextStream estream(udevinfo->ReadAllErr());
while( !estream.atEnd() )
LOG(VB_MEDIA, LOG_DEBUG,
msg + " - udevadm info error...\n" + estream.readLine());
}
QTextStream ostream(udevinfo->ReadAll());
QString udevLine = ostream.readLine();
if (!udevLine.startsWith("device not found in database") )
ret = udevLine;
delete udevinfo;
#endif // HAVE_LIBUDEV
#endif // linux
LOG(VB_MEDIA, LOG_INFO, msg + "->'" + ret + "'");
return ret;
}