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https://github.com/XeonSquared/OC-Copper.git
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aabbb554c6
In practice it is unlikely that data that's too big for the reliability layer won't need splitting anyway by the application at some point, and the libraries are already too open to OOM DoS.
51 lines
1.2 KiB
Lua
51 lines
1.2 KiB
Lua
-- I, 20kdc, release this into the public domain.
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-- No warranty is provided, implied or otherwise.
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-- Copper Reliability Layer
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-- Notably, this should be instantiated rather than the normal Copper instance.
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local culib = require("culib")
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-- onRReceive is now: (from, to, port, data, unreliablePacket)
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-- where to can be anything for unreliable packets, but otherwise is the current hostname.
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return function (hostname, transmit, onRReceive, time)
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-- node.hostname should be used for hostname generally.
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local node
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local onReceive = function (nfrom, nto, data)
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if data:len() < 6 then return end
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local port = data:byte(2) + (data:byte(1) * 256)
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if data:byte(7) == 0x0F then
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onRReceive(nfrom, nto, port, data, true)
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return
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end
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if nto ~= node.hostname then
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return
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end
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end
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node = culib(hostname, transmit, onReceive, time)
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-- Just an array, no special index.
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-- Contents : {
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-- trigger = function(),
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-- expiry = time,
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-- }
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local timers = {}
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local relib = {}
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relib.refresh = function ()
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node.refresh()
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local i = 1
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local t = time()
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while i <= #timers do
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if timers[i].expiry < t then
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table.remove(timers, i)
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else
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i = i + 1
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end
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end
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end
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relib.input = node.input
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relib.output = function ()
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end
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end
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