Mono.Zeroconf – Blame information for rev 1
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1 | office | 1 | // |
2 | // ServiceBrowser.cs |
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3 | // |
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4 | // Author: |
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5 | // Aaron Bockover <abockover@novell.com> |
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6 | // |
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7 | // Copyright (C) 2007-2008 Novell, Inc. |
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8 | // |
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9 | // Permission is hereby granted, free of charge, to any person obtaining |
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10 | // a copy of this software and associated documentation files (the |
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11 | // "Software"), to deal in the Software without restriction, including |
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12 | // without limitation the rights to use, copy, modify, merge, publish, |
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13 | // distribute, sublicense, and/or sell copies of the Software, and to |
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14 | // permit persons to whom the Software is furnished to do so, subject to |
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15 | // the following conditions: |
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16 | // |
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17 | // The above copyright notice and this permission notice shall be |
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18 | // included in all copies or substantial portions of the Software. |
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19 | // |
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20 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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21 | // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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22 | // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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23 | // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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24 | // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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25 | // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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26 | // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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27 | // |
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28 | |||
29 | using System; |
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30 | using System.Threading; |
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31 | using NDesk.DBus; |
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32 | |||
33 | namespace Mono.Zeroconf.Providers.AvahiDBus |
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34 | { |
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35 | public class RegisterService : Service, IRegisterService |
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36 | { |
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37 | private ushort port; |
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38 | private IAvahiEntryGroup entry_group; |
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39 | |||
40 | public event RegisterServiceEventHandler Response; |
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41 | |||
42 | public RegisterService () |
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43 | { |
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44 | } |
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45 | |||
46 | public RegisterService (string name, string regtype, string replyDomain, int @interface, Protocol aprotocol) |
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47 | : base (name, regtype, replyDomain, @interface, aprotocol) |
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48 | { |
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49 | } |
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50 | |||
51 | public void Register () |
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52 | { |
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53 | RegisterDBus (); |
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54 | |||
55 | byte [][] txt_record = TxtRecord == null |
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56 | ? new byte[0][] |
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57 | : Mono.Zeroconf.Providers.AvahiDBus.TxtRecord.Render (TxtRecord); |
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58 | |||
59 | entry_group.AddService (AvahiInterface, AvahiProtocol, PublishFlags.None, |
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60 | Name ?? String.Empty, RegType ?? String.Empty, ReplyDomain ?? String.Empty, |
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61 | String.Empty, port, txt_record); |
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62 | |||
63 | entry_group.Commit (); |
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64 | } |
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65 | |||
66 | private void RegisterDBus () |
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67 | { |
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68 | try { |
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69 | Monitor.Enter (this); |
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70 | DBusManager.Bus.TrapSignals (); |
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71 | |||
72 | if (entry_group != null) { |
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73 | entry_group.Reset (); |
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74 | return; |
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75 | } |
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76 | |||
77 | if (DBusManager.Server.GetState () != AvahiServerState.Running) { |
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78 | throw new ApplicationException ("Avahi Server is not in the Running state"); |
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79 | } |
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80 | |||
81 | ObjectPath path = DBusManager.Server.EntryGroupNew (); |
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82 | entry_group = DBusManager.GetObject<IAvahiEntryGroup> (path); |
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83 | |||
84 | Monitor.Exit (this); |
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85 | |||
86 | entry_group.StateChanged += OnEntryGroupStateChanged; |
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87 | } finally { |
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88 | Monitor.Exit (this); |
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89 | DBusManager.Bus.UntrapSignals (); |
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90 | } |
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91 | } |
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92 | |||
93 | private void OnEntryGroupStateChanged (EntryGroupState state, string error) |
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94 | { |
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95 | switch (state) { |
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96 | case EntryGroupState.Collision: |
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97 | if (!OnResponse (ErrorCode.Collision)) { |
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98 | throw new ApplicationException (); |
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99 | } |
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100 | break; |
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101 | case EntryGroupState.Failure: |
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102 | if (!OnResponse (ErrorCode.Failure)) { |
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103 | throw new ApplicationException (); |
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104 | } |
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105 | break; |
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106 | case EntryGroupState.Established: |
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107 | OnResponse (ErrorCode.Ok); |
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108 | break; |
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109 | } |
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110 | } |
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111 | |||
112 | protected virtual bool OnResponse (ErrorCode errorCode) |
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113 | { |
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114 | RegisterServiceEventArgs args = new RegisterServiceEventArgs (); |
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115 | |||
116 | args.Service = this; |
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117 | args.IsRegistered = false; |
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118 | args.ServiceError = AvahiUtils.ErrorCodeToServiceError (errorCode); |
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119 | |||
120 | if (errorCode == ErrorCode.Ok) { |
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121 | args.IsRegistered = true; |
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122 | } |
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123 | |||
124 | RegisterServiceEventHandler handler = Response; |
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125 | if (handler != null) { |
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126 | handler (this, args); |
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127 | return true; |
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128 | } |
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129 | |||
130 | return false; |
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131 | } |
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132 | |||
133 | public void Dispose () |
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134 | { |
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135 | lock (this) { |
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136 | if (entry_group != null) { |
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137 | entry_group.Reset (); |
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138 | entry_group.Free (); |
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139 | entry_group = null; |
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140 | } |
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141 | } |
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142 | } |
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143 | |||
144 | public short Port { |
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145 | get { return (short)UPort; } |
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146 | set { UPort = (ushort)value; } |
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147 | } |
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148 | |||
149 | public ushort UPort { |
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150 | get { return port; } |
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151 | set { port = value; } |
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152 | } |
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153 | } |
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154 | } |