Description

   This routine copies the object name attribute from the thread
   attributes object specified by the attr argument to the buffer
   at the location specified by the name argument. Before calling
   this routine, your program must allocate the buffer indicated by
   name. A new thread created using the thread attributes object is
   initialized with the object name that was set in that attributes
   object.

   The object name is a C language string and provides an identifier
   that is meaningful to a person debugging a multithreaded
   application. The maximum number of characters in the object name
   is 31.

   If the specified thread attributes object has not been previously
   set with an object name, this routine copies a C language null
   string into the buffer at location name.

   This routine contrasts with pthread_getname_np(), which obtains
   the object name from the thread object for an existing thread.