Tcl and Threads

Using Threads and Tcl

Some consolidated rules for embedding Tcl in a threaded application (from http://wiki.tcl.tk/1339)

You can NEVER use the same interpreter from more than one thread
If you only have one Tcl Interpreter:
- You can use either Unthreaded or Threaded Tcl
- No Big Global Mutex is required for Unthreaded Tcl Build (Never required for Threaded Tcl build)
If you have Multiple Tcl Interpreters:
- If you are using an Unthreaded Tcl Big Global Mutex is required for ALL calls to functions in libtcl
- If you are using a Threaded Tcl, no mutex locks are required