| TcpKeepAlive Structure |
A struct suitable for use with interop calls that require a tcp_keepalive block.
Namespace: VirtualRadar.Interop
Assembly: VirtualRadar.Interop (in VirtualRadar.Interop.dll) Version: 1.0.0.0 (1.0.0.0)
SyntaxThe TcpKeepAlive type exposes the following members.
Methods| Name | Description | |
|---|---|---|
 | BuildBuffer |
Returns a managed array of bytes representing the struct content.
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| Equals | Indicates whether this instance and a specified object are equal. (Inherited from ValueType.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Returns the hash code for this instance. (Inherited from ValueType.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns the fully qualified type name of this instance. (Inherited from ValueType.) |
Fields| Name | Description | |
|---|---|---|
 | KeepAliveInterval |
The interval in milliseconds between successive keep-alive packets.
|
| KeepAliveTime |
The timeout in milliseconds.
|
| OnOff |
Indicates whether TCP keep-alive is enabled or disabled.
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RemarksSee http://msdn.microsoft.com/en-us/library/dd877220(VS.85).aspx, C version is tcp_keepalive and is associated with SIO_KEEPALIVE_VALS control code.
By default BeginRead on a socket will wait forever with no heartbeat. If the connection breaks you get no indication. By specifying a hearbeat check with SIO_KEEPALIVE_VALS you can force it to throw a SocketException after a connection has remained broken for a given period of time.
See Also