OC-Tsuki/ksrc/threads.lua
2020-05-08 23:51:05 -04:00

56 lines
1.3 KiB
Lua

local thd = {}
local next_pause = 0
local max_proctime = 5 -- 5s of process time max.
local last_proctime = 0
local lastsig = {}
local threads = {}
local function run_threads()
local rthd = {}
local mfd = {}
for i=1, #thd do
if (threads[i].dead) then
mfd[#mfd+1] = i
elseif (threads[i].deadline >= computer.uptime()) then
rthd[#rthd+1] = threads[i]
end
end
table.sort(rthd, function(a, b)
if (a.priority == b.priority) then
return a.deadline < b.deadline
end
return a.priority < b.priority
end)
local starttime = computer.uptime()
local mindl = math.huge
for i=1, #rthd do
local ok, dl = coroutine.resume(rthd[i].coro, table.unpack(rthd[i].args or lastsig))
if (not ok or coroutine.status(rthd[i].coro) == "dead") then
signal.push(thd.get(rthd[i].parent), {"subproc", "dead", rthd[i].pid, (rthd[i].exitcode or (dl and 1) or 0)})
for j=1, #thd do
if (threads[j] == rthd[i]) then
mfd[#mfd+1] = j
break
end
end
else
mindl = ((mindl > dl) and dl) or mindl
buffers.update(rthd[i])
if (rthd[i].sigpushed) then
mindl = 0
rthd[i].sigpushed = false
end
end
if (computer.uptime() >= starttime+max_proctime) then
goto cleanup
end
end
::cleanup::
for i=#mfd, 1, -1 do
table.remove(threads, mfd[i])
end
lastsig = table.pack(computer.pullSignal(mindl))
end
function thd.add(tinfo)
end