Tcl Library Source Code

Files in directory examples/tie of check-in f6eb7e4e99c69b23

Documentation of the tie examples
=================================

metakit.tcl
	This is the implementation of a data source storing the array
	in a metakit database.

server.tcl
sending_client.tcl
receiving_client.tcl

	These three scripts belong together. They demonstrate how to
	sharing an array across processes. It uses the package "comm"
	and the data source "remotearray".

	server.tcl

		is invoked without arguments. It will print the id of
		the TCP server port it is listening on. It has a
		single array 'server'. Changes to the array are
		reported on stdout.

	sending_client.tcl

		is invoked with the id of the server as its only
		argument. It has a local array 'sender'. Changes to
		'sender' are exported to the server vie tie,
		remotearray, and comm. The changes made are hardwired
		into the script and executed with a delay of 1/10th of
		a second between them, after a 2 second startup delay.

	receiving_client.tcl

		is invoked with the id of the server as its only
		argument. It has a local array 'receiver'. Changes to
		receiver are reported to stdout. The script imports
		the server array, and any changes on the server are
		mirrored in the receiver.

	Open three xterm and start the three scripts in them, in the
	order
		server.tcl
		receiving_client.tcl
		sending_client.tcl

	Two seconds after the sending client has started both server
	and receiver start to report the changes made by the sender to
	its array and broadcast to server and then the receiver.

transceiver.tcl

	A combination of both sending_client.tcl and
	receiving_client.tcl. Exports the local array to the server,
	and imports the server array to the local one. Performs
	changes both local and on the server, showing that both
	changes get distributed to both partners, independent where
	the change was made.