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Implement cached lookup because rednet is stupid

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osmarks 2018-07-27 10:26:37 +01:00
parent 92ac4d0fbc
commit f274328871
1 changed files with 12 additions and 1 deletions
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13
lib.lua
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@ -64,6 +64,17 @@ end
local protocol = "wyvern" local protocol = "wyvern"
local lookup_cache = {}
local function cached_lookup(protocol)
if lookup_cache[protocol] then return lookup_cache[protocol]
else
local ID = rednet.lookup(protocol)
lookup_cache[protocol] = ID
return ID
end
end
local function init_screen(scr, bg, fg) local function init_screen(scr, bg, fg)
scr.setCursorPos(1, 1) scr.setCursorPos(1, 1)
scr.setBackgroundColor(bg) scr.setBackgroundColor(bg)
@ -145,7 +156,7 @@ local function query_by_ID(ID, request, max_tries)
end end
local function query_by_type(type, request, tries) local function query_by_type(type, request, tries)
local ID = rednet.lookup(protocol .. "/" .. type) local ID = cached_lookup(protocol .. "/" .. type)
if not ID then return errors.make(errors.NOMATCHINGNODE, type) end if not ID then return errors.make(errors.NOMATCHINGNODE, type) end
return query_by_ID(ID, request, tries) return query_by_ID(ID, request, tries)
end end