Using pthread_exit_and_get when the IPT is the last thread

Table 1 describes the actions that are taken when pthread_exit_and_get is issued for a thread that is the IPT and is the last thread.

Table 1. Using pthread_exit_and_get when the IPT is the last thread
Step	IPT task is the only task	Thread 2 doesn't exist
1	A request to exit the pthread was issued.
2	Run thread cleanup routines before this thread terminates.
3	Call pthread_exit_and_get with the PTEXITTHREAD and PTFAILIFLASTTHREAD options to terminate the thread on the IPT.
4	A return value and reason code reporting a failure from pthread_exit_and_get indicates that this is the last thread.
5	Process the remaining thread and cleanup (such as running exits).
6	Call pthread_exit_and_get without the PTFAILIFLASTTHREAD option to terminate the last thread and the process.
7	Control is returned to the IPT from pthread_exit_and_get, and all threads terminate.
8	The mvsprocclp service is issued to clean up any remaining portions of the process. Control returns from this service after all subtasks created with pthread_create terminate, or until the time to do so has elapsed.
9	The IPT task gains control when the mvsprocclp service completes. All pthreads for this process and all subtasks of the IPT have terminated.
10	The IPT task is no longer associated with the kernel, and can now return to its caller or to the system.