The Current Process

Each pset has a current process. The current process has a variety of uses in MP Prism:

• The source window displays the source code executing in the current process of the current pset.

• The Where graph centers around the call stack of the current pset's current process; see " Where Graph".

• The current process determines the scope used in interpreting the names of variables; see " Scope in MP Prism".

By default, the current process is the lowest-numbered process in the set. You can change this as described below.

• From the Psets window - Use one of these methods to change the current process via the Psets window:

  • Click on the cell representing the process in the displayed pset. The cell turns a darker shade of the color for the other processes (or, on a non-color workstation, gray).

  • To change the current process in the current pset, you can also edit the number in the box under Process at the top right of the window, then press Return.

• From the command line - Issue the process command to specify another current process for the current pset. For example,

(prism all) process 2
The current process is now 2.

Issue the process command without any arguments to print the current process of the current pset.

When you change a current process, by any of the methods described above, the pset keeps this new current process until you explicitly change it. That is, if you switch to a different current set, then switch back to the original set, the original set will still have the same current process.