LindaSharp

LindaSharp is an implementation of the tuple space using C#.

The library is divided into multiple parts:

• Local: A tuple space that can be used in a single process.
• Server: A tuple space that can be used in a distributed environment.
• Clients: Clients that can connect to a server and interact with the tuple space.
  • .NET
  • Python
  • Java
  • JavaScript - Coming soon
  • Rust - Coming soon

Supported operations:

• out: Insert a tuple to the tuple space
• in: Take a tuple from the tuple space
• rd: Read a tuple from the tuple space (without removing it)
• inp: Try to take a tuple from the tuple space immediately
• rdp: Try to read a tuple from the tuple space immediately (without removing it)
• eval - Run task in the tuple space
  • Local tuple space will run the function in a separate thread
  • Server tuple space will run the script on the server side
  • Clients will send the script to the server to be executed

Server

Server is implemented using ASP.NET Core and supports:

• REST API
• gRPC - mainly used
• GUI dashboard

Scripting

Server supports running scripts that will be executed on the server side. Currently, only IronPython (.NET implementation of Python) is supported, but more languages will be added in the future.

Scripts will be executed in a separate thread and will have access to the tuple space through the linda object. Also, registered scripts can be invoked with a parameter, which can be accessed through the param variable.

Script execution status can be checked with an execution ID, which is returned when the script is started.

Example of an Ironpython script:

while True:
	if linda.try_query("done"):
		break
	
	_, a = linda.get("a", None)
	_, b = linda.get("b", None)
	_, ind = linda.get("ind", None)

	ind += 1
	c = a + b

	linda.put("fib", ind, c)

	linda.put("a", b)
	linda.put("b", c)
	linda.put("ind", ind)

Clients

Clients are written in way that is idiomatic to the language they are written in. Most of the clients are written in a way that can be used in an asynchronous environment.