+++ /dev/null
-/***
- 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.
-***/
-
-using System;
-using System.Net;
-using System.Collections;
-using System.Runtime.InteropServices;
-using System.Text;
-
-namespace Avahi
-{
-
- public delegate void RecordInfoHandler (object o, RecordInfoArgs args);
-
- internal delegate void RecordBrowserCallback (IntPtr browser, int iface, Protocol proto, BrowserEvent bevent,
- IntPtr name, ushort clazz, ushort type, IntPtr rdata, int size,
- LookupResultFlags flags, IntPtr userdata);
-
- public enum RecordClass {
- In = 1
- }
-
- public enum RecordType {
- A = 1,
- Ns = 2,
- Cname = 5,
- Soa = 6,
- Ptr = 12,
- Hinfo = 13,
- Mx = 15,
- Txt = 16,
- Aaa = 28,
- Srv = 33
- }
-
- public struct RecordInfo
- {
- public int NetworkInterface;
- public Protocol Protocol;
- public string Name;
- public RecordClass Class;
- public RecordType Type;
- public byte[] Data;
- public LookupResultFlags Flags;
- }
-
- public class RecordInfoArgs : EventArgs
- {
- private RecordInfo record;
-
- public RecordInfo Record {
- get { return record; }
- }
-
- public RecordInfoArgs (RecordInfo record)
- {
- this.record = record;
- }
- }
-
- public class RecordBrowser : BrowserBase, IDisposable
- {
- private IntPtr handle;
- private ArrayList infos = new ArrayList ();
- private Client client;
- private int iface;
- private Protocol proto;
- private string name;
- private RecordClass clazz;
- private RecordType type;
- private LookupFlags flags;
- private RecordBrowserCallback cb;
-
- private ArrayList addListeners = new ArrayList ();
- private ArrayList removeListeners = new ArrayList ();
-
- [DllImport ("avahi-client")]
- private static extern IntPtr avahi_record_browser_new (IntPtr client, int iface, Protocol proto,
- byte[] name, ushort clazz, ushort type,
- LookupFlags flags, RecordBrowserCallback cb,
- IntPtr userdata);
-
-
- [DllImport ("avahi-client")]
- private static extern void avahi_record_browser_free (IntPtr handle);
-
- public event RecordInfoHandler RecordAdded
- {
- add {
- addListeners.Add (value);
- Start ();
- }
- remove {
- addListeners.Remove (value);
- Stop (false);
- }
- }
-
- public event RecordInfoHandler RecordRemoved
- {
- add {
- removeListeners.Add (value);
- Start ();
- }
- remove {
- removeListeners.Remove (value);
- Stop (false);
- }
- }
-
- public RecordInfo[] Records
- {
- get { return (RecordInfo[]) infos.ToArray (typeof (RecordInfo)); }
- }
-
- public RecordBrowser (Client client, string name, RecordType type) :
- this (client, -1, Protocol.Unspecified, name, RecordClass.In, type, LookupFlags.None)
- {
- }
-
- public RecordBrowser (Client client, int iface, Protocol proto, string name, RecordClass clazz,
- RecordType type, LookupFlags flags)
- {
- this.client = client;
- this.iface = iface;
- this.proto = proto;
- this.name = name;
- this.clazz = clazz;
- this.type = type;
- this.flags = flags;
- cb = OnRecordBrowserCallback;
- }
-
- ~RecordBrowser ()
- {
- Dispose ();
- }
-
- public void Dispose ()
- {
- Stop (true);
- }
-
- private void Start ()
- {
- if (client.Handle == IntPtr.Zero || handle != IntPtr.Zero ||
- (addListeners.Count == 0 && removeListeners.Count == 0))
- return;
-
- lock (client) {
- handle = avahi_record_browser_new (client.Handle, iface, proto, Utility.StringToBytes (name),
- (ushort) clazz, (ushort) type, flags, cb, IntPtr.Zero);
-
- if (handle == IntPtr.Zero)
- client.ThrowError ();
- }
- }
-
- private void Stop (bool force)
- {
- if (client.Handle != IntPtr.Zero && handle != IntPtr.Zero &&
- (force || (addListeners.Count == 0 && removeListeners.Count == 0))) {
-
- lock (client) {
- avahi_record_browser_free (handle);
- handle = IntPtr.Zero;
- }
- }
- }
-
- private void OnRecordBrowserCallback (IntPtr browser, int iface, Protocol proto, BrowserEvent bevent,
- IntPtr name, ushort clazz, ushort type, IntPtr rdata, int size,
- LookupResultFlags flags, IntPtr userdata)
- {
- RecordInfo info;
- info.NetworkInterface = iface;
- info.Protocol = proto;
- info.Name = Utility.PtrToString (name);
- info.Class = (RecordClass) clazz;
- info.Type = (RecordType) type;
- info.Flags = flags;
- info.Data = new byte[size];
-
- if (rdata != IntPtr.Zero) {
- Marshal.Copy (rdata, info.Data, 0, size);
- }
-
- switch (bevent) {
- case BrowserEvent.Added:
- infos.Add (info);
-
- foreach (RecordInfoHandler handler in addListeners)
- handler (this, new RecordInfoArgs (info));
-
- break;
- case BrowserEvent.Removed:
- infos.Remove (info);
-
- foreach (RecordInfoHandler handler in removeListeners)
- handler (this, new RecordInfoArgs (info));
-
- break;
- default:
- EmitBrowserEvent (bevent);
- break;
- }
- }
- }
-}
projects / catta / blobdiff