-- :Minify:--
local kernel = ...
local io = {}
kernel.io = io
io.eventq = {}

function io.pushEvent(queue, ...)
    queue = tostring(queue)
    if not io.eventq[queue] then io.eventq[queue] = {} end
    io.eventq[queue][#io.eventq[queue] + 1] = {...}
end

function io.bind(queue)
    queue = tostring(queue)
    kernel.currentTask.eventq = queue
end

function io.pullEvent()
    if io.eventq[kernel.currentTask.eventq] then
        if #io.eventq[kernel.currentTask.eventq] == 1 then
            local event = table.remove(io.eventq[kernel.currentTask.eventq] or {}, 1)
            io.eventq[kernel.currentTask.eventq] = nil
            return table.unpack(event)
        end

        local event =
            table.remove(io.eventq[kernel.currentTask.eventq] or {}, 1)

        if not event then return end
        return table.unpack(event)
    end
end

function io.getBoundQueue() return kernel.currentTask.eventq end

kernel.syscalls["IO_pushEvent"] = io.pushEvent
kernel.syscalls["IO_pullEvent"] = io.pullEvent
kernel.syscalls["IO_bind"] = io.bind
kernel.syscalls["IO_getBoundQueue"] = io.getBoundQueue

kernel.log("IO pipeline initialized")