Improved error case return codes of many functions.
/* $Id$ */
digraph pdo_entry_conf {
start [fontname="Helvetica"]
start -> zero_entry_count [weight=10]
zero_entry_count [fontname="Helvetica"]
zero_entry_count -> end [fontname="Helvetica",label="No Entries"]
zero_entry_count -> action_map [fontname="Helvetica",label="Add first entry", weight=10]
action_map [shape=point,label=""]
action_map -> map_entry [weight=10]
map_entry [fontname="Helvetica"]
map_entry -> action_map [fontname="Helvetica",label="Next entry"]
map_entry -> set_entry_count [fontname="Helvetica",label="No more Entries", weight=10]
set_entry_count [fontname="Helvetica"]
set_entry_count -> end [weight=10]
end [fontname="Helvetica"]
end
}