supervisor sessions work in progress
This commit is contained in:
Mikayla Fischler
248
supervisor/session/plc.lua
Normal file
248
supervisor/session/plc.lua
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-- #REQUIRES mqueue.lua
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-- #REQUIRES comms.lua
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-- #REQUIRES log.lua
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-- #REQUIRES util.lua
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local RPLC_TYPES = comms.RPLC_TYPES
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PLC_S_COMMANDS = {
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SCRAM = 0,
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ENABLE = 1,
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ISS_CLEAR = 2
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}
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-- PLC supervisor session
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function new_session(id, for_reactor, in_queue, out_queue)
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local log_header = "plc_session(" .. id .. "): "
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local self = {
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id = id,
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for_reactor = for_reactor,
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in_q = in_queue,
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out_q = out_queue,
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commanded_state = false,
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-- connection properties
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seq_num = 0,
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connected = true,
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received_struct = false,
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plc_conn_watchdog = util.new_watchdog(3)
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-- when to next retry one of these requests
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retry_times = {
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struct_req = 0,
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scram_req = 0,
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enable_req = 0
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},
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-- session PLC status database
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sDB = {
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control_state = false,
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overridden = false,
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degraded = false,
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iss_status = {
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dmg_crit = false,
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ex_hcool = false,
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ex_waste = false,
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high_temp = false,
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no_fuel = false,
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no_cool = false,
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timed_out = false
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},
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mek_status = {
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heating_rate = 0,
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status = false,
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burn_rate = 0,
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act_burn_rate = 0,
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temp = 0,
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damage = 0,
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boil_eff = 0,
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env_loss = 0,
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fuel = 0,
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fuel_need = 0,
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fuel_fill = 0,
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waste = 0,
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waste_need = 0,
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waste_fill = 0,
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cool_type = "?",
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cool_amnt = 0,
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cool_need = 0,
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cool_fill = 0,
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hcool_type = "?",
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hcool_amnt = 0,
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hcool_need = 0,
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hcool_fill = 0
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},
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mek_struct = {
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heat_cap = 0,
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fuel_asm = 0,
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fuel_sa = 0,
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fuel_cap = 0,
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waste_cap = 0,
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cool_cap = 0,
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hcool_cap = 0,
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max_burn = 0
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}
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}
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}
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local _copy_iss_status = function (iss_status)
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self.sDB.iss_status.dmg_crit = iss_status[1]
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self.sDB.iss_status.ex_hcool = iss_status[2]
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self.sDB.iss_status.ex_waste = iss_status[3]
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self.sDB.iss_status.high_temp = iss_status[4]
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self.sDB.iss_status.no_fuel = iss_status[5]
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self.sDB.iss_status.no_cool = iss_status[6]
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self.sDB.iss_status.timed_out = iss_status[7]
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end
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local _copy_status = function (heating_rate, mek_data)
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self.sDB.mek_status.heating_rate = heating_rate
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for key, value in pairs(mek_data) do
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self.sDB.mek_status[key] = value
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end
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end
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local _copy_struct = function (mek_data)
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for key, value in pairs(mek_data) do
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self.sDB.mek_struct[key] = value
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end
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end
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local _get_ack = function (pkt)
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if rplc_packet.length == 1 then
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return rplc_packet.data[1]
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else
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log._warning(log_header .. "RPLC ACK length mismatch")
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return nil
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end
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end
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local get_id = function () return self.id end
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local close = function () self.connected = false end
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local check_wd = function (timer)
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return timer == plc_conn_watchdog
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end
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local get_struct = function ()
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if self.received_struct then
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return self.sDB.mek_struct
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else
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-- @todo: need a system in place to re-request this periodically
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return nil
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end
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end
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local iterate = function ()
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if self.connected and ~self.in_q.empty() then
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-- get a new message to process
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local message = self.in_q.pop()
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if message.qtype == mqueue.TYPE.PACKET then
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-- handle an incoming packet from the PLC
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rplc_pkt = message.message.get()
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if rplc_pkt.id == for_reactor then
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if rplc_pkt.type == RPLC_TYPES.KEEP_ALIVE then
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-- periodic keep alive
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elseif rplc_pkt.type == RPLC_TYPES.STATUS then
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-- status packet received, update data
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if rplc_packet.length == 6 then
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-- @todo [1] is timestamp, determine how this will be used (if at all)
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self.sDB.control_state = rplc_packet.data[2]
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self.sDB.overridden = rplc_packet.data[3]
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self.sDB.degraded = rplc_packet.data[4]
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-- attempt to read mek_data table
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if rplc_packet.data[6] ~= nil then
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local status = pcall(_copy_status, rplc_packet.data[5], rplc_packet.data[6])
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if status then
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-- copied in status data OK
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else
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-- error copying status data
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log._error(log_header .. "failed to parse status packet data")
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end
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else
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self.sDB.mek_status.heating_rate = rplc_packet.data[5]
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end
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else
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log._warning(log_header .. "RPLC status packet length mismatch")
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end
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elseif rplc_pkt.type == RPLC_TYPES.MEK_STRUCT then
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-- received reactor structure, record it
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if rplc_packet.length == 1 then
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local status = pcall(_copy_struct, rplc_packet.data[1])
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if status then
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-- copied in structure data OK
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else
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-- error copying structure data
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log._error(log_header .. "failed to parse struct packet data")
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end
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else
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log._warning(log_header .. "RPLC struct packet length mismatch")
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end
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elseif rplc_pkt.type == RPLC_TYPES.MEK_SCRAM then
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-- SCRAM acknowledgement
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local ack = _get_ack(rplc_pkt)
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if ack then
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self.sDB.control_state = false
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elseif ack == false then
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log._warning(log_header .. "SCRAM failed!")
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end
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elseif rplc_pkt.type == RPLC_TYPES.MEK_ENABLE then
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-- enable acknowledgement
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local ack = _get_ack(rplc_pkt)
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if ack then
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self.sDB.control_state = true
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elseif ack == false then
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log._warning(log_header .. "enable failed!")
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end
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elseif rplc_pkt.type == RPLC_TYPES.MEK_BURN_RATE then
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-- burn rate acknowledgement
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if _get_ack(rplc_pkt) == false then
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log._warning(log_header .. "burn rate update failed!")
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end
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elseif rplc_pkt.type == RPLC_TYPES.ISS_STATUS then
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-- ISS status packet received, copy data
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if rplc_packet.length == 1 then
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local status = pcall(_copy_iss_status, rplc_packet.data[1])
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if status then
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-- copied in ISS status data OK
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else
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-- error copying ISS status data
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log._error(log_header .. "failed to parse ISS status packet data")
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end
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else
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log._warning(log_header .. "RPLC ISS status packet length mismatch")
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end
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elseif rplc_pkt.type == RPLC_TYPES.ISS_ALARM then
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-- ISS alarm
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self.sDB.overridden = true
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-- @todo
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elseif rplc_pkt.type == RPLC_TYPES.ISS_CLEAR then
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-- ISS clear acknowledgement
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-- @todo
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else
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log._warning(log_header .. "handler received unsupported RPLC packet type " .. rplc_pkt.type)
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end
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else
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log._warning(log_header .. "RPLC packet with ID not matching reactor ID: reactor " .. self.for_reactor .. " != " .. rplc_pkt.id)
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end
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elseif message.qtype == mqueue.TYPE.COMMAND then
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-- handle instruction
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end
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end
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return self.connected
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end
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return {
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get_id = get_id,
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check_wd = check_wd,
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get_struct = get_struct,
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close = close,
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iterate = iterate
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}
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end
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