Items can be found either by name or by position. When a noticeboard is found a private copy of its item descriptors is made in which all non NIL pointers are relocated by the virtual address of the start of the relevant noticeboard. Thus, once a noticeboard has been found, all information pertaining to it can in fact be accessed using standard C structures.
- NBS_FIND_NOTICEBOARD:
- Find a named noticeboard and return an identifier to it
- NBS_FIND_ITEM:
- Find an item with a specified name contained in a structure associated with a specified identifier and return the located item's ID
- NBS_FIND_NTH_ITEM:
- Find the Nth item contained in a structure associated with a specified identifier and return the located item'sID
NBS The Noticeboard System