Add proc table to error handler args

README.md

@@ -10,8 +10,8 @@ A ComputerCraft service thingamagoocus.
     - [X] Monitor processes
     - [ ] Introspection
         - [ ] See all running processes (IDs?)
-        - [ ] Error handlers
-             - [ ] Called with process table
+        - [X] Error handlers
+             - [X] Called with process table
              - [X] Called with error
  - [ ] Top-Level Coroutine Override
      - [ ] No multishell

process.lua

@@ -30,11 +30,12 @@ process.processes = {}
 
 local nextID = 0
 function process.spawn(fn,err)
+	if err==_G.error then err = nil end
 	local thisID = nextID
 	nextID = nextID + 1
 	local proc = {
 		co = coroutine.create(fn),
-		err = err or function(e) error(e) end,
+		err = err or function(e,p) error(e) end,
 		id = thisID,
 		status = process.status.ALIVE
 	}
@@ -58,7 +59,7 @@ function process.tick(proc,event)
 	end
 	local ok,err = coroutine.resume(proc.co,table.unpack(event))
 	if not ok then
-		proc.err(err)
+		proc.err(err,proc)
 		proc.status = process.status.DEAD
 	else
 		proc.filter = err