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authorJohn Hurliman2009-10-14 16:48:27 -0700
committerJohn Hurliman2009-10-14 16:48:27 -0700
commit06990b074c17c2201ed379bf1ae4c7191ab3187f (patch)
treec15c9c46d3b139fc315f0f448e4f66d6bea0c553 /OpenSim/Region
parent* Clean up the SetThrottle() code and add a maxBurstRate parameter to allow m... (diff)
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Allow the LLUDP server to run in either synchronous or asynchronous mode with a config setting, defaulting to synchronous mode
Diffstat (limited to 'OpenSim/Region')
-rw-r--r--OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs7
-rw-r--r--OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs28
2 files changed, 29 insertions, 6 deletions
diff --git a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
index 890f701..545a0bc 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs
@@ -113,6 +113,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
113 /// is passed up to the operating system and used in the system networking 113 /// is passed up to the operating system and used in the system networking
114 /// stack. Use zero to leave this value as the default</summary> 114 /// stack. Use zero to leave this value as the default</summary>
115 private int m_recvBufferSize; 115 private int m_recvBufferSize;
116 /// <summary>Flag to process packets asynchronously or synchronously</summary>
117 private bool m_asyncPacketHandling;
116 118
117 /// <summary>The measured resolution of Environment.TickCount</summary> 119 /// <summary>The measured resolution of Environment.TickCount</summary>
118 public float TickCountResolution { get { return m_tickCountResolution; } } 120 public float TickCountResolution { get { return m_tickCountResolution; } }
@@ -143,6 +145,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
143 IConfig config = configSource.Configs["ClientStack.LindenUDP"]; 145 IConfig config = configSource.Configs["ClientStack.LindenUDP"];
144 if (config != null) 146 if (config != null)
145 { 147 {
148 m_asyncPacketHandling = config.GetBoolean("async_packet_handling", false);
146 m_recvBufferSize = config.GetInt("client_socket_rcvbuf_size", 0); 149 m_recvBufferSize = config.GetInt("client_socket_rcvbuf_size", 0);
147 sceneThrottleBps = config.GetInt("scene_throttle_max_bps", 0); 150 sceneThrottleBps = config.GetInt("scene_throttle_max_bps", 0);
148 } 151 }
@@ -156,7 +159,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
156 if (m_scene == null) 159 if (m_scene == null)
157 throw new InvalidOperationException("[LLUDPSERVER]: Cannot LLUDPServer.Start() without an IScene reference"); 160 throw new InvalidOperationException("[LLUDPSERVER]: Cannot LLUDPServer.Start() without an IScene reference");
158 161
159 base.Start(m_recvBufferSize); 162 m_log.Info("[LLUDPSERVER]: Starting the LLUDP server in " + (m_asyncPacketHandling ? "asynchronous" : "synchronous") + " mode");
163
164 base.Start(m_recvBufferSize, m_asyncPacketHandling);
160 165
161 // Start the incoming packet processing thread 166 // Start the incoming packet processing thread
162 Thread incomingThread = new Thread(IncomingPacketHandler); 167 Thread incomingThread = new Thread(IncomingPacketHandler);
diff --git a/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
index 44a6ed6..d16837d 100644
--- a/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/LindenUDP/OpenSimUDPBase.cs
@@ -62,6 +62,9 @@ namespace OpenMetaverse
62 /// <summary>UDP socket, used in either client or server mode</summary> 62 /// <summary>UDP socket, used in either client or server mode</summary>
63 private Socket m_udpSocket; 63 private Socket m_udpSocket;
64 64
65 /// <summary>Flag to process packets asynchronously or synchronously</summary>
66 private bool m_asyncPacketHandling;
67
65 /// <summary>The all important shutdown flag</summary> 68 /// <summary>The all important shutdown flag</summary>
66 private volatile bool m_shutdownFlag = true; 69 private volatile bool m_shutdownFlag = true;
67 70
@@ -73,7 +76,6 @@ namespace OpenMetaverse
73 /// </summary> 76 /// </summary>
74 /// <param name="bindAddress">Local IP address to bind the server to</param> 77 /// <param name="bindAddress">Local IP address to bind the server to</param>
75 /// <param name="port">Port to listening for incoming UDP packets on</param> 78 /// <param name="port">Port to listening for incoming UDP packets on</param>
76 ///
77 public OpenSimUDPBase(IPAddress bindAddress, int port) 79 public OpenSimUDPBase(IPAddress bindAddress, int port)
78 { 80 {
79 m_localBindAddress = bindAddress; 81 m_localBindAddress = bindAddress;
@@ -87,13 +89,19 @@ namespace OpenMetaverse
87 /// the UDP socket. This value is passed up to the operating system 89 /// the UDP socket. This value is passed up to the operating system
88 /// and used in the system networking stack. Use zero to leave this 90 /// and used in the system networking stack. Use zero to leave this
89 /// value as the default</param> 91 /// value as the default</param>
92 /// <param name="asyncPacketHandling">Set this to true to start
93 /// receiving more packets while current packet handler callbacks are
94 /// still running. Setting this to false will complete each packet
95 /// callback before the next packet is processed</param>
90 /// <remarks>This method will attempt to set the SIO_UDP_CONNRESET flag 96 /// <remarks>This method will attempt to set the SIO_UDP_CONNRESET flag
91 /// on the socket to get newer versions of Windows to behave in a sane 97 /// on the socket to get newer versions of Windows to behave in a sane
92 /// manner (not throwing an exception when the remote side resets the 98 /// manner (not throwing an exception when the remote side resets the
93 /// connection). This call is ignored on Mono where the flag is not 99 /// connection). This call is ignored on Mono where the flag is not
94 /// necessary</remarks> 100 /// necessary</remarks>
95 public void Start(int recvBufferSize) 101 public void Start(int recvBufferSize, bool asyncPacketHandling)
96 { 102 {
103 m_asyncPacketHandling = asyncPacketHandling;
104
97 if (m_shutdownFlag) 105 if (m_shutdownFlag)
98 { 106 {
99 const int SIO_UDP_CONNRESET = -1744830452; 107 const int SIO_UDP_CONNRESET = -1744830452;
@@ -209,8 +217,10 @@ namespace OpenMetaverse
209 // to AsyncBeginReceive 217 // to AsyncBeginReceive
210 if (!m_shutdownFlag) 218 if (!m_shutdownFlag)
211 { 219 {
212 // start another receive - this keeps the server going! 220 // Asynchronous mode will start another receive before the
213 AsyncBeginReceive(); 221 // callback for this packet is even fired. Very parallel :-)
222 if (m_asyncPacketHandling)
223 AsyncBeginReceive();
214 224
215 // get the buffer that was created in AsyncBeginReceive 225 // get the buffer that was created in AsyncBeginReceive
216 // this is the received data 226 // this is the received data
@@ -230,7 +240,15 @@ namespace OpenMetaverse
230 } 240 }
231 catch (SocketException) { } 241 catch (SocketException) { }
232 catch (ObjectDisposedException) { } 242 catch (ObjectDisposedException) { }
233 //finally { wrappedBuffer.Dispose(); } 243 finally
244 {
245 //wrappedBuffer.Dispose();
246
247 // Synchronous mode waits until the packet callback completes
248 // before starting the receive to fetch another packet
249 if (!m_asyncPacketHandling)
250 AsyncBeginReceive();
251 }
234 252
235 } 253 }
236 } 254 }