#53 RTU redstone parse checks

rtu/startup.lua

@@ -103,6 +103,19 @@ for entry_idx = 1, #rtu_redstone do
 
     log.debug("init> starting redstone RTU I/O linking for reactor " .. io_reactor .. "...")
 
+    local continue = true
+
+    for i = 1, #units do
+        local unit = units[i]   ---@type rtu_unit_registry_entry
+        if unit.reactor == io_reactor and unit.type == rtu_t.redstone then
+            -- duplicate entry
+            log.warning("init> skipping definition block #" .. entry_idx .. " for reactor " .. io_reactor .. " with already defined redstone I/O")
+            continue = false
+            break
+        end
+    end
+
+    if continue then
         for i = 1, #io_table do
             local valid = false
             local conf = io_table[i]
@@ -125,11 +138,21 @@ for entry_idx = 1, #rtu_redstone do
                 -- link redstone in RTU
                 local mode = rsio.get_io_mode(conf.channel)
                 if mode == rsio.IO_MODE.DIGITAL_IN then
+                    -- can't have duplicate inputs
+                    if util.table_contains(capabilities, conf.channel) then
+                        log.warning("init> skipping duplicate input for channel " .. rsio.to_string(conf.channel) .. " on side " .. conf.side)
+                    else
                         rs_rtu.link_di(conf.side, conf.bundled_color)
+                    end
                 elseif mode == rsio.IO_MODE.DIGITAL_OUT then
                     rs_rtu.link_do(conf.channel, conf.side, conf.bundled_color)
                 elseif mode == rsio.IO_MODE.ANALOG_IN then
+                    -- can't have duplicate inputs
+                    if util.table_contains(capabilities, conf.channel) then
+                        log.warning("init> skipping duplicate input for channel " .. rsio.to_string(conf.channel) .. " on side " .. conf.side)
+                    else
                         rs_rtu.link_ai(conf.side)
+                    end
                 elseif mode == rsio.IO_MODE.ANALOG_OUT then
                     rs_rtu.link_ao(conf.side)
                 else
@@ -162,6 +185,7 @@ for entry_idx = 1, #rtu_redstone do
 
         log.debug("init> initialized RTU unit #" .. #units .. ": redstone_io (redstone) [1] for reactor " .. io_reactor)
     end
+end
 
 -- mounted peripherals
 for i = 1, #rtu_devices do

scada-common/util.lua

@@ -107,6 +107,17 @@ util.filter_table = function (t, f, on_delete)
     end
 end
 
+-- check if a table contains the provided element
+---@param t table table to check
+---@param element any element to check for
+util.table_contains = function (t, element)
+    for i = 1, #t do
+        if t[i] == element then return true end
+    end
+
+    return false
+end
+
 -- MEKANISM POWER --
 
 -- function kFE(fe) return fe / 1000 end