profnsched/queue.lua

102 lines
2.4 KiB
Lua

scheduler = {}
-- scheduler.queue = {[1]={first=1, last=2, groups={[1]={}, [2]={}}}}
scheduler.queue = {[1]={cur={}, nxt={}, ncur=1, nnxt=1}}
function scheduler.add(priority, job)
-- get asked class
local class = scheduler.queue[priority]
local p = priority
while not class do -- create all classes under 'priority'
--scheduler.queue[p] = {first=1, last=2, groups={[1]={}, [2]={}}}
scheduler.queue[p] = {cur={}, nxt={}, ncur=1, nnxt=1}
p = p-1
class = scheduler.queue[p]
end
class = scheduler.queue[priority]
class.nxt[class.nnxt] = job
class.nnxt = class.nnxt+1
-- get last group
--local grp = class.groups[class.last]
-- add job into last group
--grp[#grp+1] = job
end
function scheduler.asap(priority, func)
scheduler.add(priority, {
mod_name = core.get_last_run_mod(),
func_id = "#"..debug.getinfo(2, "S").linedefined, --imprecis
func_code = func,
arg = {},
})
end
function scheduler.mdebug(s)
minetest.debug("[Profnsched] "..s)
end
function scheduler.shift()
local nb = scheduler.waitingjobs()
local qnext = nil
for class,q in ipairs(scheduler.queue) do
q.cur = q.nxt
q.nxt = {}
q.ncur = q.nnxt
q.nnxt = 1
--local tnext = class+1
qnext = scheduler.queue[class+1]
if qnext then
local src = qnext.cur
for i,j in pairs(src) do
q.cur[q.ncur] = j
q.ncur = q.ncur+1
src[i] = nil
end
qnext.cur = {}
qnext.ncur = 1
end
end
--[[
q.groups[q.first] = q.groups[q.last]
q.groups[q.last] = {}
local tnext = class+1
tnext = scheduler.queue[tnext]
if tnext then
tsrc = tnext.groups[tnext.first]
tdst = q.groups[q.first]
for i,j in pairs(tsrc) do
tdst[#tdst+1] = j
tsrc[i] = nil
end
end
end]]
if nb ~= scheduler.waitingjobs() then --This should never happen, left because it was used during debug phase
mdebug("ERROR, This should never happen ! Lost jobs, some mod may not work from now, please restart the server.")
end
--
end
function scheduler.fulldebug()
minetest.log("[Profnsched]"..#scheduler.queue.." classes")
for class,q in pairs(scheduler.queue) do
minetest.log("[Profnsched] class "..class..":")
minetest.log("[Profnsched] current "..q.ncur)
minetest.log("[Profnsched] next "..q.nnxt)
end
minetest.log("[Profnsched] end")
end
function scheduler.waitingjobs()
local n = 0
for class, q in pairs(scheduler.queue) do
for i,grp in pairs(q.cur) do
n = n+1
end
for i,grp in pairs(q.nxt) do
n = n+1
end
end
return n
end