Source of Qt mainloop adapter. Build system stuff will follow

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@493 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe

2 files changed, 220 insertions, 0 deletions

diff --git a/avahi-qt/qt-watch.cpp b/avahi-qt/qt-watch.cpp
new file mode 100644
index 0000000..fe8f2c3
--- /dev/null
+++ b/avahi-qt/qt-watch.cpp
@@ -0,0 +1,180 @@
+/***
+  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 "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_lastEvent; }
+    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;
+};
+
+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)
+{
+    setWatchedEvents(event);
+}
+
+void AvahiWatch::gotIn()
+{
+    m_lastEvent = AVAHI_WATCH_IN;
+    m_callback(this,m_fd,m_lastEvent,m_userdata);
+}
+
+void AvahiWatch::gotOut()
+{
+    m_lastEvent = AVAHI_WATCH_IN;
+    m_callback(this,m_fd,m_lastEvent,m_userdata);
+}
+
+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()));
+    update(tv);
+}
+
+void AvahiTimeout::update(const struct timeval *tv)
+{
+    m_timer.stop();
+    if (tv) {
+        struct timeval now;
+        gettimeofday(&now, 0);
+        m_timer.start((tv->tv_sec-now.tv_sec)*1000+(tv->tv_usec-now.tv_usec)/1000);
+    }
+}
+
+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;
+}
+
+
+void create_qt_poll(AvahiPoll *api) 
+{
+    api->userdata=0;
+    api->watch_new = q_watch_new;
+    api->watch_free = q_watch_free;
+    api->watch_update = q_watch_update;
+    api->watch_get_events = q_watch_get_events;
+    
+    api->timeout_new = q_timeout_new;
+    api->timeout_free = q_timeout_free;
+    api->timeout_update = q_timeout_update;
+}
+
+#include "qt-watch.moc"
diff --git a/avahi-qt/qt-watch.h b/avahi-qt/qt-watch.h
new file mode 100644
index 0000000..b49b45d
--- /dev/null
+++ b/avahi-qt/qt-watch.h
@@ -0,0 +1,40 @@
+#ifndef QAVAHI_H
+#define QAVAHI_H
+
+/***
+  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 <avahi-common/watch.h>
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+AVAHI_C_DECL_BEGIN
+#endif
+
+/**
+Setup abstract poll structure for integration with Qt main loop  */
+
+void create_qt_poll(AvahiPoll* poll);
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+AVAHI_C_DECL_END
+#endif
+
+
+
+#endif