Important: The readlib command has been deprecated. Procedures are automatically invoked from the library without the need of a readlib call.

In order to display the source code to any library function, use interface(verboseproc=2); print(foo), where foo is the name of the function you want to look at.

The readlib command is thread-safe as of Maple 15.

For more information on thread safety, see index/threadsafe.