1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/* $Id$ */
/***
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.Runtime.InteropServices;
namespace Avahi
{
public enum EntryGroupState {
Uncommited,
Registering,
Established,
Collision
}
internal delegate void EntryGroupCallback (IntPtr group, EntryGroupState state, IntPtr userdata);
public delegate void EntryGroupStateHandler (object o, EntryGroupState state);
public class EntryGroup : IDisposable
{
private Client client;
private IntPtr handle;
private EntryGroupCallback cb;
[DllImport ("avahi-client")]
private static extern IntPtr avahi_entry_group_new (IntPtr client, EntryGroupCallback cb, IntPtr userdata);
[DllImport ("avahi-client")]
private static extern void avahi_entry_group_commit (IntPtr group);
[DllImport ("avahi-client")]
private static extern void avahi_entry_group_reset (IntPtr group);
[DllImport ("avahi-client")]
private static extern EntryGroupState avahi_entry_group_get_state (IntPtr group);
[DllImport ("avahi-client")]
private static extern bool avahi_entry_group_is_empty (IntPtr group);
[DllImport ("avahi-client")]
private static extern void avahi_entry_group_add_service_strlst (IntPtr group, int iface, Protocol proto,
IntPtr name, IntPtr type, IntPtr domain,
IntPtr host, UInt16 port, IntPtr strlst);
[DllImport ("avahi-client")]
private static extern void avahi_entry_group_free (IntPtr group);
[DllImport ("avahi-common")]
private static extern IntPtr avahi_string_list_new (IntPtr txt);
[DllImport ("avahi-common")]
private static extern IntPtr avahi_string_list_add (IntPtr list, IntPtr txt);
[DllImport ("avahi-common")]
private static extern void avahi_string_list_free (IntPtr list);
public event EntryGroupStateHandler StateChanged;
public EntryGroupState State
{
get {
lock (client) {
return avahi_entry_group_get_state (handle);
}
}
}
public bool IsEmpty
{
get {
lock (client) {
return avahi_entry_group_is_empty (handle);
}
}
}
public EntryGroup (Client client)
{
this.client = client;
cb = OnEntryGroupCallback;
lock (client) {
handle = avahi_entry_group_new (client.Handle, cb, IntPtr.Zero);
client.CheckError ();
}
}
~EntryGroup ()
{
Dispose ();
}
public void Dispose ()
{
if (client.Handle != IntPtr.Zero && handle != IntPtr.Zero) {
lock (client) {
avahi_entry_group_free (handle);
handle = IntPtr.Zero;
}
}
}
public void Commit ()
{
lock (client) {
avahi_entry_group_commit (handle);
client.CheckError ();
}
}
public void Reset ()
{
lock (client) {
avahi_entry_group_reset (handle);
client.CheckError ();
}
}
public void AddService (string name, string type, string domain,
UInt16 port, params string[] txt)
{
AddService (-1, Protocol.Unspecified, name, type, domain, null, port, txt);
}
public void AddService (int iface, Protocol proto, string name, string type, string domain,
string host, UInt16 port, params string[] txt)
{
IntPtr list = avahi_string_list_new (IntPtr.Zero);
if (txt != null) {
foreach (string item in txt) {
IntPtr itemPtr = Utility.StringToPtr (item);
list = avahi_string_list_add (list, itemPtr);
Utility.Free (itemPtr);
}
}
IntPtr namePtr = Utility.StringToPtr (name);
IntPtr typePtr = Utility.StringToPtr (type);
IntPtr domainPtr = Utility.StringToPtr (domain);
IntPtr hostPtr = Utility.StringToPtr (host);
lock (client) {
avahi_entry_group_add_service_strlst (handle, iface, proto, namePtr, typePtr, domainPtr,
hostPtr, port, list);
}
avahi_string_list_free (list);
client.CheckError ();
}
private void OnEntryGroupCallback (IntPtr group, EntryGroupState state, IntPtr userdata)
{
if (StateChanged != null)
StateChanged (this, state);
}
}
}
|
