/* Copyright (C) 2014 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _RREAPER_H_INCLUDED_
#define _RREAPER_H_INCLUDED_
#include <string>
#include <list>
#include <queue>
#include <iostream>
#include <unordered_set>
#include <QDebug>
#include <QThread>
#include <upnp/upnp.h>
#include "libupnpp/control/cdirectory.hxx"
class RecursiveReaper : public QThread {
Q_OBJECT;
public:
RecursiveReaper(UPnPClient::CDSH server, std::string objid,
QObject *parent = 0)
: QThread(parent), m_serv(server), m_cancel(false)
{
m_ctobjids.push(objid);
m_allctobjids.insert(objid);
}
~RecursiveReaper()
{
}
virtual void run() {
qDebug() << "RecursiveReaper::run";
m_status = UPNP_E_SUCCESS;
while (!m_ctobjids.empty()) {
if (m_cancel) {
qDebug() << "RecursiveReaper:: cancelled";
break;
}
// We don't stop on a container scan error, minimserver for one
// sometimes has dialog hiccups with libupnp, this is not fatal.
scanContainer(m_ctobjids.front());
m_ctobjids.pop();
}
emit done(m_status);
qDebug() << "RecursiveReaper::done";
}
void setCancel() {
m_cancel = true;
}
signals:
void sliceAvailable(UPnPClient::UPnPDirContent*);
void done(int);
private:
virtual bool scanContainer(const std::string& objid) {
//qDebug() << "RecursiveReaper::scanCT: objid:" << objid.c_str();
int offset = 0;
int toread = 20; // read small count the first time
int total = 1000;// Updated on first read.
int count;
while (offset < total) {
if (m_cancel) {
qDebug() << "RecursiveReaper:: cancelled";
break;
}
UPnPClient::UPnPDirContent& slice =
*(new UPnPClient::UPnPDirContent());
unsigned int lastctidx = slice.m_containers.size();
// Read entries
m_status = m_serv->readDirSlice(objid, offset, toread,
slice, &count, &total);
if (m_status != UPNP_E_SUCCESS) {
return false;
}
offset += count;
// Put containers aside for later exploration
for (auto it = slice.m_containers.begin() + lastctidx;
it != slice.m_containers.end(); it++) {
if (it->m_title.empty())
continue;
if (m_serv->getKind() ==
UPnPClient::ContentDirectory::CDSKIND_MINIM &&
it->m_title.size() >= 2 && it->m_title[0] == '>' &&
it->m_title[1] == '>') {
continue;
}
if (m_allctobjids.find(it->m_id) != m_allctobjids.end()) {
qDebug() << "scanContainer: loop detected";
continue;
}
//qDebug()<< "scanContainer: pushing objid " << it->m_id.c_str()
// << " title " << it->m_title.c_str();
m_allctobjids.insert(it->m_id);
m_ctobjids.push(it->m_id);
}
slice.m_containers.clear();
// Make items available
if (!slice.m_items.empty()) {
qDebug() << "RecursiveReaper::scanCT got " <<
slice.m_items.size() << " items";
emit sliceAvailable(&slice);
}
toread = m_serv->goodSliceSize();
}
return true;
}
UPnPClient::CDSH m_serv;
std::queue<std::string> m_ctobjids;
std::unordered_set<std::string> m_allctobjids;
int m_status;
bool m_cancel;
};
#endif /* _RREAPER_H_INCLUDED_ */