From 5fbf3b88a31c63ed7742f477ffcbea8a3b7abbbd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20N=C3=BCcke?= <florian@nuecke.de>
Date: Fri, 3 Jan 2014 17:47:13 +0100
Subject: [PATCH] immediately flushing abstract bus packets now, avoids having
 to save the queue and issues that brings with it (remove card, insert
 somewhere else, continues working through remaining queue...)

---
 li/cil/oc/server/component/AbstractBus.scala | 58 +++++---------------
 1 file changed, 13 insertions(+), 45 deletions(-)

diff --git a/li/cil/oc/server/component/AbstractBus.scala b/li/cil/oc/server/component/AbstractBus.scala
index 0feb4dfc3..a34602fbc 100644
--- a/li/cil/oc/server/component/AbstractBus.scala
+++ b/li/cil/oc/server/component/AbstractBus.scala
@@ -3,10 +3,8 @@ package li.cil.oc.server.component
 import li.cil.oc.api
 import li.cil.oc.api.network.{Arguments, Context, LuaCallback, Visibility}
 import li.cil.oc.common.tileentity
-import li.cil.oc.util.ExtendedNBT._
-import net.minecraft.nbt.{NBTTagString, NBTTagList, NBTTagCompound}
+import net.minecraft.nbt.NBTTagCompound
 import scala.collection.convert.WrapAsScala._
-import scala.collection.mutable
 import stargatetech2.api.StargateTechAPI
 import stargatetech2.api.bus.{BusPacketLIP, BusPacket, IBusDriver, IBusInterface}
 
@@ -21,7 +19,7 @@ class AbstractBus(val owner: tileentity.Computer) extends ManagedComponent with
 
   protected var address = 0
 
-  protected val sendQueue = mutable.Queue.empty[QueuedPacket]
+  protected var sendQueue: Option[QueuedPacket] = None
 
   // ----------------------------------------------------------------------- //
 
@@ -31,19 +29,22 @@ class AbstractBus(val owner: tileentity.Computer) extends ManagedComponent with
     val lip = packet.getPlainText
     val data = Map(lip.getEntryList.map(key => (key, lip.get(key))): _*)
     // TODO do we want to push metadata, too?
-    owner.signal("bus_message", Int.box(packet.getProtocolID), Int.box(packet.getSender), Int.box(packet.getTarget), data)
+    val metadata = Map("mod" -> "", "device" -> "", "player" -> "")
+    owner.signal("bus_message", Int.box(packet.getProtocolID), Int.box(packet.getSender), Int.box(packet.getTarget), data, metadata)
   }
 
-  def getNextPacketToSend = if (sendQueue.nonEmpty) {
-    val info = sendQueue.dequeue()
+  def getNextPacketToSend = if (sendQueue.isDefined) {
+    val info = sendQueue.get
+    sendQueue = None
     val packet = new BusPacketLIP(info.sender, info.target)
     for ((key, value) <- info.data) {
       packet.set(key, value)
     }
-    // TODO generate metadata?
+    packet.setMetadata(new BusPacketLIP.LIPMetadata("OpenComputers", node.address, null))
     packet.finish()
     packet
-  } else null
+  }
+  else null
 
   def isInterfaceEnabled = isEnabled
 
@@ -73,7 +74,8 @@ class AbstractBus(val owner: tileentity.Computer) extends ManagedComponent with
   def send(context: Context, args: Arguments): Array[AnyRef] = {
     val target = args.checkInteger(0) & 0xFFFF
     val data = args.checkTable(1)
-    sendQueue += new QueuedPacket(address.toShort, target.toShort, Map(data.toSeq.map(entry => (entry._1.toString, entry._2.toString)): _*))
+    sendQueue = Some(new QueuedPacket(address.toShort, target.toShort, Map(data.toSeq.map(entry => (entry._1.toString, entry._2.toString)): _*)))
+    busInterface.sendAllPackets()
     result(true)
   }
 
@@ -84,9 +86,6 @@ class AbstractBus(val owner: tileentity.Computer) extends ManagedComponent with
     busInterface.readFromNBT(nbt, "bus")
     isEnabled = nbt.getBoolean("enabled")
     address = nbt.getInteger("address") & 0xFFFF
-    if (nbt.hasKey("queue")) {
-      sendQueue ++= nbt.getTagList("queue").map(QueuedPacket.readFromNBT)
-    }
   }
 
   override def save(nbt: NBTTagCompound) {
@@ -94,39 +93,8 @@ class AbstractBus(val owner: tileentity.Computer) extends ManagedComponent with
     busInterface.writeToNBT(nbt, "bus")
     nbt.setBoolean("enabled", isEnabled)
     nbt.setInteger("address", address)
-    if (sendQueue.nonEmpty) {
-      nbt.setNewTagList("queue", sendQueue.toIterable.map(packet => packet.writeToNBT(new NBTTagCompound())))
-    }
   }
 
-  protected class QueuedPacket(val sender: Short, val target: Short, val data: Map[String, String]) {
-    def writeToNBT(nbt: NBTTagCompound) = {
-      nbt.setShort("sender", sender)
-      nbt.setShort("target", target)
-      val list = new NBTTagList()
-      for ((key, value) <- data) {
-        list.append(key)
-        list.append(value)
-      }
-      nbt.setTag("data", list)
-      nbt
-    }
-  }
-
-  protected object QueuedPacket {
-    def readFromNBT(nbt: NBTTagCompound) = {
-      val sender = nbt.getShort("sender")
-      val target = nbt.getShort("target")
-      val list = nbt.getTagList("data")
-      val data = mutable.Map.empty[String, String]
-      for (i <- 0 until list.tagCount by 2) {
-        (list.tagAt(i), list.tagAt(i + 1)) match {
-          case (key: NBTTagString, value: NBTTagString) => data += key.data -> value.data
-          case _ =>
-        }
-      }
-      new QueuedPacket(sender, target, data.toMap)
-    }
-  }
+  protected class QueuedPacket(val sender: Short, val target: Short, val data: Map[String, String])
 
 }