From 3db36154677343bf5490cd6d6df37544d8bd13ad Mon Sep 17 00:00:00 2001
From: osmarks <osmarks@protonmail.com>
Date: Tue, 14 Aug 2018 22:28:57 +0100
Subject: [PATCH] IO stuff

---
 IO.lua    | 6 +++---
 README.md | 5 +++++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/IO.lua b/IO.lua
index c30820a..3a5df65 100644
--- a/IO.lua
+++ b/IO.lua
@@ -24,17 +24,17 @@ while true do
             local request = w.string_to_item(item_name)
             request.type = "extract"
             request.destination_inventory = w.chest
-            w.query_by_type("storage", request)
+            w.unwrap(w.query_by_type("storage", request), "extracting items")
         end
     end
 
     for slot, item in pairs(stacks_stored) do
         if not conf.items[w.get_internal_identifier(item)] then -- if item is not in want list, send it back to storage
-            w.query_by_type("storage", {
+            w.unwrap(w.query_by_type("storage", {
                 type = "insert",
                 from_inventory = conf.chest,
                 from_slot = slot
-            })
+            }), "inserting items")
         end
     end
 
diff --git a/README.md b/README.md
index 2d059ed..1cb0ddb 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@ Client  Client  Client
 * **Server** is a computer running `backend-chests`. Other backends may eventually become available. It must be connected to the chests, clients, and both sides of the buffers.
 * **Client** is a crafty turtle running `client`. It must be connected to the server and external side of the buffers.
 * **Processing** will be used for autocrafting systems. It is not yet implemented.
+* **IO** units should be computers connected to chests.
 
 ### Configuration
 Configuration is stored in `wyvern_config.tbl` in lua table syntax as used by `textutils.(un)serialise`.
@@ -51,6 +52,10 @@ Configuration is stored in `wyvern_config.tbl` in lua table syntax as used by `t
 `buffer_external` must contain the network name of the buffer on the client side.
 `modem_internal` can contain the network name of the server on the chest side. This is only required if your network contains chests on the client side which are connected.
 
+#### IO
+`chest` must contain the network name of some sort of storage device to use for item IO.
+`items` must can contain the desired quantities of each item, with the item name in "minecraft:cobblestone:0" format as the key and desired quantity as value.
+
 ## Warnings
 * Inserting/extracting items manually into/out of chests will result in the index being desynchronised with the actual items. To correct the index, run `reindex` in the CLI client.
 * If you try and extract items when the storage server is still starting up, it may fail, as not all chests will have been indexed yet.