category:Geometry Service category:GSNet Protocol

![](../img/GSNet_Symbol.png)

The Geometry Service Network (GSNet) Protocol is a TCP/IP based protocol designed to facilitate socketed communications between Geometry Service Nodes on a network. A Geometry Service Node is defined as any softwares that supports communication via the GSNet Protocol.
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GSNet Msg Description

The header of the GSNet Msg contains the information necessary for quickly determining authenticity, type and length. Geometry Service's network library, libNetwork, has a header byte layout that looks like this:
Element Length Value
MsgType int16 (2 bytes)
MessageLength int32 (4 bytes) Does *NOT* include the type or length, so is packet size - 6
MessageUUID String (Variable bytes)
HasRegardingUUID Boolean (1 byte)
RegardingMessageUUID String (Variable bytes)
  • MsgType: 2 byte integer value that tells what type of message this is.
  • MessageUUID: Standard UUID for this message. Currently stored as a string.
  • HasRegardingUUID: Boolean flag that indicates whether there is a Regarding UUID or not.
  • RegardingMessageUUID: Standard UUID that indicates this NetMsg is a response to another NetMsg.

Data

The Data load of a NetMsg is, obivously, the important and unique part. Data Loads can be as small as zero (in the case of a TypeOnlyMsg) or many kilobytes long.

Here is a list of NetMsg types and here is a list of Common NetMsg Exchanges.