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/***
This file is part of avahi.
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
avahi 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 Lesser General
Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <sys/time.h>
#ifdef QT4
#include <Qt/qsocketnotifier.h>
#include <Qt/qobject.h>
#include <Qt/qtimer.h>
#else
#include <qsocketnotifier.h>
#include <qobject.h>
#include <qtimer.h>
#endif
#include <avahi-common/timeval.h>
#include "qt-watch.h"
class AvahiWatch : public QObject
{
Q_OBJECT
public:
AvahiWatch(int fd, AvahiWatchEvent event, AvahiWatchCallback callback, void* userdata);
~AvahiWatch() {}
AvahiWatchEvent getEvents() const { return m_incallback ? m_lastEvent : (AvahiWatchEvent)0; }
void setWatchedEvents(AvahiWatchEvent event);
private slots:
void gotIn();
void gotOut();
private:
QSocketNotifier* m_in;
QSocketNotifier* m_out;
//FIXME: ERR and HUP?
AvahiWatchCallback m_callback;
AvahiWatchEvent m_lastEvent;
int m_fd;
void* m_userdata;
bool m_incallback;
};
class AvahiTimeout : public QObject
{
Q_OBJECT
public:
AvahiTimeout(const struct timeval* tv, AvahiTimeoutCallback callback, void* userdata);
~AvahiTimeout() {}
void update(const struct timeval* tv);
private slots:
void timeout();
private:
QTimer m_timer;
AvahiTimeoutCallback m_callback;
void* m_userdata;
};
AvahiWatch::AvahiWatch(int fd, AvahiWatchEvent event, AvahiWatchCallback callback, void* userdata) :
m_in(0), m_out(0), m_callback(callback), m_fd(fd), m_userdata(userdata), m_incallback(false)
{
setWatchedEvents(event);
}
void AvahiWatch::gotIn()
{
m_lastEvent = AVAHI_WATCH_IN;
m_incallback=true;
m_callback(this,m_fd,m_lastEvent,m_userdata);
m_incallback=false;
}
void AvahiWatch::gotOut()
{
m_lastEvent = AVAHI_WATCH_IN;
m_incallback=true;
m_callback(this,m_fd,m_lastEvent,m_userdata);
m_incallback=false;
}
void AvahiWatch::setWatchedEvents(AvahiWatchEvent event)
{
if (!(event & AVAHI_WATCH_IN)) { delete m_in; m_in=0; }
if (!(event & AVAHI_WATCH_OUT)) { delete m_out; m_out=0; }
if (event & AVAHI_WATCH_IN) {
m_in = new QSocketNotifier(m_fd,QSocketNotifier::Read, this);
connect(m_in,SIGNAL(activated(int)),SLOT(gotIn()));
}
if (event & AVAHI_WATCH_OUT) {
m_out = new QSocketNotifier(m_fd,QSocketNotifier::Write, this);
connect(m_out,SIGNAL(activated(int)),SLOT(gotOut()));
}
}
AvahiTimeout::AvahiTimeout(const struct timeval* tv, AvahiTimeoutCallback callback, void *userdata) :
m_callback(callback), m_userdata(userdata)
{
connect(&m_timer, SIGNAL(timeout()), this, SLOT(timeout()));
#ifdef QT4
m_timer.setSingleShot(true);
#endif
update(tv);
}
void AvahiTimeout::update(const struct timeval *tv)
{
m_timer.stop();
if (tv) {
AvahiUsec u = avahi_age(tv)/1000;
#ifdef QT4
m_timer.start( (u>0) ? 0 : -u);
#else
m_timer.start( (u>0) ? 0 : -u,true);
#endif
}
}
void AvahiTimeout::timeout()
{
m_callback(this,m_userdata);
}
static AvahiWatch* q_watch_new(const AvahiPoll *api, int fd, AvahiWatchEvent event, AvahiWatchCallback callback,
void *userdata)
{
return new AvahiWatch(fd, event, callback, userdata);
}
static void q_watch_update(AvahiWatch *w, AvahiWatchEvent events)
{
w->setWatchedEvents(events);
}
static AvahiWatchEvent q_watch_get_events(AvahiWatch *w)
{
return w->getEvents();
}
static void q_watch_free(AvahiWatch *w)
{
delete w;
}
static AvahiTimeout* q_timeout_new(const AvahiPoll *api, const struct timeval *tv, AvahiTimeoutCallback callback,
void *userdata)
{
return new AvahiTimeout(tv, callback, userdata);
}
static void q_timeout_update(AvahiTimeout *t, const struct timeval *tv)
{
t->update(tv);
}
static void q_timeout_free(AvahiTimeout *t)
{
delete t;
}
const AvahiPoll* avahi_qt_poll_get(void)
{
static const AvahiPoll qt_poll = {
NULL,
q_watch_new,
q_watch_update,
q_watch_get_events,
q_watch_free,
q_timeout_new,
q_timeout_update,
q_timeout_free
};
return &qt_poll;
}
#ifdef QT4
#include "qt-watch.moc4"
#else
#include "qt-watch.moc3"
#endif
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