forked from jbagg/QtZeroConf
134 lines
3.4 KiB
C++
134 lines
3.4 KiB
C++
/***
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This file is part of avahi.
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avahi is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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avahi is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with avahi; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <sys/time.h>
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#include <avahi-common/timeval.h>
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#include "qt-watch.h"
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#include "qt-watch_p.h"
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AvahiWatch::AvahiWatch(int fd, AvahiWatchEvent event, AvahiWatchCallback callback, void* userdata) :
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m_in(0), m_out(0), m_callback(callback), m_fd(fd), m_userdata(userdata), m_incallback(false)
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{
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setWatchedEvents(event);
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}
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void AvahiWatch::gotIn()
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{
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m_lastEvent = AVAHI_WATCH_IN;
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m_incallback=true;
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m_callback(this,m_fd,m_lastEvent,m_userdata);
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m_incallback=false;
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}
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void AvahiWatch::gotOut()
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{
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m_lastEvent = AVAHI_WATCH_IN;
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m_incallback=true;
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m_callback(this,m_fd,m_lastEvent,m_userdata);
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m_incallback=false;
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}
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void AvahiWatch::setWatchedEvents(AvahiWatchEvent event)
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{
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if (!(event & AVAHI_WATCH_IN)) { delete m_in; m_in=0; }
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if (!(event & AVAHI_WATCH_OUT)) { delete m_out; m_out=0; }
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if (event & AVAHI_WATCH_IN) {
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m_in = new QSocketNotifier(m_fd,QSocketNotifier::Read, this);
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connect(m_in,SIGNAL(activated(int)),SLOT(gotIn()));
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}
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if (event & AVAHI_WATCH_OUT) {
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m_out = new QSocketNotifier(m_fd,QSocketNotifier::Write, this);
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connect(m_out,SIGNAL(activated(int)),SLOT(gotOut()));
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}
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}
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AvahiTimeout::AvahiTimeout(const struct timeval* tv, AvahiTimeoutCallback callback, void *userdata) :
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m_callback(callback), m_userdata(userdata)
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{
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connect(&m_timer, SIGNAL(timeout()), this, SLOT(timeout()));
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m_timer.setSingleShot(true);
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update(tv);
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}
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void AvahiTimeout::update(const struct timeval *tv)
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{
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m_timer.stop();
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if (tv) {
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AvahiUsec u = avahi_age(tv)/1000;
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m_timer.start( (u>0) ? 0 : -u);
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}
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}
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void AvahiTimeout::timeout()
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{
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m_callback(this,m_userdata);
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}
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static AvahiWatch* q_watch_new(const AvahiPoll *, int fd, AvahiWatchEvent event, AvahiWatchCallback callback,
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void *userdata)
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{
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return new AvahiWatch(fd, event, callback, userdata);
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}
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static void q_watch_update(AvahiWatch *w, AvahiWatchEvent events)
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{
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w->setWatchedEvents(events);
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}
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static AvahiWatchEvent q_watch_get_events(AvahiWatch *w)
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{
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return w->getEvents();
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}
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static void q_watch_free(AvahiWatch *w)
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{
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delete w;
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}
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static AvahiTimeout* q_timeout_new(const AvahiPoll *, const struct timeval *tv, AvahiTimeoutCallback callback,
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void *userdata)
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{
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return new AvahiTimeout(tv, callback, userdata);
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}
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static void q_timeout_update(AvahiTimeout *t, const struct timeval *tv)
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{
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t->update(tv);
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}
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static void q_timeout_free(AvahiTimeout *t)
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{
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delete t;
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}
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const AvahiPoll* avahi_qt_poll_get(void)
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{
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static const AvahiPoll qt_poll = {
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NULL,
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q_watch_new,
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q_watch_update,
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q_watch_get_events,
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q_watch_free,
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q_timeout_new,
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q_timeout_update,
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q_timeout_free
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};
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return &qt_poll;
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}
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