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#include <QtCore/QDebug>
#include <libudev.h>
#include "smartpenmanager.h"
SmartpenManager::SmartpenManager(QObject *parent)
: QObject(parent), _udev(udev_new()), _monitor(udev_monitor_new_from_netlink(_udev, "udev")),
_notifier(new QSocketNotifier(udev_monitor_get_fd(_monitor), QSocketNotifier::Read))
{
udev_monitor_filter_add_match_tag(_monitor, "livescribe-pen");
connect(_notifier, SIGNAL(activated(int)), SLOT(handleMonitorActivity()));
udev_monitor_enable_receiving(_monitor);
udev_enumerate *scan = udev_enumerate_new(_udev);
udev_enumerate_add_match_tag(scan, "livescribe-pen");
if (udev_enumerate_scan_devices(scan) == 0) {
udev_list_entry *l = udev_enumerate_get_list_entry(scan), *i;
udev_list_entry_foreach(i, l) {
const char *path = udev_list_entry_get_name(i);
udev_device *dev = udev_device_new_from_syspath(_udev, path);
processDevice(dev);
udev_device_unref(dev);
}
} else {
qWarning() << "Failed to scan for devices";
}
udev_enumerate_unref(scan);
}
SmartpenManager::~SmartpenManager()
{
delete _notifier;
udev_monitor_unref(_monitor);
udev_unref(_udev);
}
QStringList SmartpenManager::pensBeingSynchronized() const
{
QStringList pens;
pens.reserve(_syncers.size());
for (QMap<Smartpen::Address, SmartpenSyncer*>::const_iterator it = _syncers.begin();
it != _syncers.end(); ++it) {
QString name = it.value()->penName();
if (name.isEmpty()) {
Smartpen::Address addr = it.value()->penAddress();
name = QString("%1-%2").arg(addr.first, addr.second);
}
pens.append(name);
}
return pens;
}
void SmartpenManager::handleMonitorActivity()
{
qDebug() << "udev activity";
udev_device *dev = udev_monitor_receive_device(_monitor);
if (dev) {
processDevice(dev);
udev_device_unref(dev);
}
}
void SmartpenManager::handleSyncerFinished()
{
SmartpenSyncer *syncer = static_cast<SmartpenSyncer*>(sender());
Smartpen::Address addr = syncer->penAddress();
qDebug() << "Finished synchronization with pen with address:" << addr;
_syncers.remove(addr);
syncer->deleteLater();
emit pensBeingSynchronizedChanged();
}
void SmartpenManager::processDevice(udev_device *dev)
{
uint busnum = atol(udev_device_get_sysattr_value(dev, "busnum"));
uint devnum = atol(udev_device_get_sysattr_value(dev, "devnum"));
Smartpen::Address addr(busnum, devnum);
if (!_syncers.contains(addr)) {
SmartpenSyncer *syncer = new SmartpenSyncer(addr, this);
_syncers.insert(addr, syncer);
connect(syncer, SIGNAL(finished()), SLOT(handleSyncerFinished()));
connect(syncer, SIGNAL(penNameChanged()), SIGNAL(pensBeingSynchronizedChanged()));
syncer->start();
emit pensBeingSynchronizedChanged();
}
}
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