14.10.21.5 Description

This method sets the context for the current application-managed thread. The context parameter provided must have been obtained in a previously-executed thread that is managed by the Oracle Tuxedo system or in an application-managed thread that has already been initialized.

Note:

Do not call the set_ctx method in a thread that is managed by the Oracle Tuxedo system. The Oracle Tuxedo system performs the appropriate context propagation automatically for the threads it manages. If your application calls this method on a thread managed by the Oracle Tuxedo system, the BAD_PARAM exception is thrown.