fixed the "user" kernel module getting the wrong IDs when creating tasks

when the user kernel module creates a task, it used to count the amount
of processes in the system, which can lead to some processes having the
same IDs as another, which causes havoc. this has been fixed by using
the ID counter in the tsched kernel module.

halyde/kernel/modules/tsched.lua

@@ -16,7 +16,7 @@ function module.init()
   local gpu = component.gpu
   local log = require("log")
 
-  local idCounter = 1
+  tsched.idCounter = 1
 
   function _G._PUBLIC.tsched.runAsTask(path, ...)
     checkArg(1, path, "string")
@@ -68,20 +68,27 @@ function module.init()
     checkArg(1, func, "function")
     checkArg(2, name, "string")
     local task = coroutine.create(func)
-    local taskInfo = { ["task"] = task, ["name"] = name, ["id"] = idCounter}
+    local taskInfo = { ["task"] = task, ["name"] = name, ["id"] = tsched.idCounter }
     if type(tsched.currentTask) == "table" and type(tsched.currentTask.id) == "number" then
       taskInfo.parent = tsched.currentTask.id
       taskInfo.user = tsched.currentTask.user
     end
     table.insert(tsched.tasks, taskInfo)
-    idCounter = idCounter + 1
+    tsched.idCounter = tsched.idCounter + 1
     if taskInfo.parent then
       log.kernel.info(
-        ("[tsched] Created task %s (PID %d) by parent PID %d as UID %d"):format(name, idCounter - 1, taskInfo.parent, taskInfo.user)
+        ("[tsched] Created task %s (PID %d) by parent PID %d as UID %d"):format(
+          name,
+          tsched.idCounter - 1,
+          taskInfo.parent,
+          taskInfo.user
+        )
       )
     else
       taskInfo.user = 1 -- It's probably being run from kernel level
-      log.kernel.info(string.format("[tsched] Created task %s (PID %d) as UID 1 (no parent found)", name, idCounter - 1))
+      log.kernel.info(
+        string.format("[tsched] Created task %s (PID %d) as UID 1 (no parent found)", name, tsched.idCounter - 1)
+      )
     end
     return task, taskInfo
   end