extern int x1f4_join_lxport(void *lxport);
x1f4_join_lxport function waits for every started process still
registered with the
lxport library object and deregister the waited
It is meant to be called after program execution completion to pick up failed child processes. It does wait for every registered process and it cannot identify the program that started waited processes.
The function returns
0 for success and an error class code for failure
x1f4_pick_lxport returns are taken as failures).
See Error Classes.