176 lines
7.6 KiB
Diff
176 lines
7.6 KiB
Diff
From a63a30097cb93decbd8735d557a4d32ece9c2451 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Fri, 28 Nov 2014 13:43:11 -0600
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Subject: [PATCH] Player lookup improvements
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Minecraft and CraftBukkit both use Arrays to store online players,
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and any time a player needs to be looked up by name or UUID,
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the system iterates all online players and does a name or UUID comparison.
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This is very ineffecient and can reduce performance on servers with high player count.
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By using a map based approach for player lookups, player lookup should
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be consistent in performance regardless of how many players are online.
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diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
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index 9664482..a92a369 100644
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--- a/src/main/java/net/minecraft/server/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/PlayerList.java
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@@ -48,6 +48,31 @@ public abstract class PlayerList {
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private static final SimpleDateFormat i = new SimpleDateFormat("yyyy-MM-dd \'at\' HH:mm:ss z");
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private final MinecraftServer server;
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public final List players = new java.util.concurrent.CopyOnWriteArrayList(); // CraftBukkit - ArrayList -> CopyOnWriteArrayList: Iterator safety
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+ // PaperSpigot start - Player lookup improvements
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+ public final Map<String, EntityPlayer> playerMap = new java.util.HashMap<String, EntityPlayer>() {
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+ @Override
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+ public EntityPlayer put(String key, EntityPlayer value) {
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+ return super.put(key.toLowerCase(), value);
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+ }
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+
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+ @Override
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+ public EntityPlayer get(Object key) {
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+ // put the .playerConnection check done in other places here
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+ EntityPlayer player = super.get(key instanceof String ? ((String) key).toLowerCase() : key);
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+ return (player != null && player.playerConnection != null) ? player : null;
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+ }
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+
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+ @Override
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+ public boolean containsKey(Object key) {
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+ return get(key) != null;
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+ }
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+
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+ @Override
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+ public EntityPlayer remove(Object key) {
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+ return super.remove(key instanceof String ? ((String) key).toLowerCase() : key);
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+ }
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+ };
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+ // PaperSpigot end
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public final Map f = Maps.newHashMap();
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private final GameProfileBanList k;
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private final IpBanList l;
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@@ -253,6 +278,7 @@ public abstract class PlayerList {
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public void onPlayerJoin(EntityPlayer entityplayer) {
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this.players.add(entityplayer);
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+ this.playerMap.put(entityplayer.getName(), entityplayer); // PaperSpigot
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this.f.put(entityplayer.getUniqueID(), entityplayer);
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// this.sendAll(new PacketPlayOutPlayerInfo(EnumPlayerInfoAction.ADD_PLAYER, new EntityPlayer[] { entityplayer})); // CraftBukkit - replaced with loop below
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WorldServer worldserver = this.server.getWorldServer(entityplayer.dimension);
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@@ -324,6 +350,7 @@ public abstract class PlayerList {
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worldserver.kill(entityplayer);
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worldserver.getPlayerChunkMap().removePlayer(entityplayer);
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this.players.remove(entityplayer);
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+ this.playerMap.remove(entityplayer.getName()); // PaperSpigot
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this.f.remove(entityplayer.getUniqueID());
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this.o.remove(entityplayer.getUniqueID());
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// CraftBukkit start
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@@ -355,6 +382,8 @@ public abstract class PlayerList {
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EntityPlayer entityplayer;
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+ // PaperSpigot - Use exact lookup below
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+ /*
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for (int i = 0; i < this.players.size(); ++i) {
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entityplayer = (EntityPlayer) this.players.get(i);
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if (entityplayer.getUniqueID().equals(uuid)) {
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@@ -366,6 +395,8 @@ public abstract class PlayerList {
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while (iterator.hasNext()) {
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entityplayer = (EntityPlayer) iterator.next();
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+ */
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+ if ((entityplayer = this.a(uuid)) != null) {
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savePlayerFile(entityplayer); // CraftBukkit - Force the player's inventory to be saved
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entityplayer.playerConnection.disconnect("You logged in from another location");
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}
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@@ -957,6 +988,7 @@ public abstract class PlayerList {
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}
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public EntityPlayer getPlayer(String s) {
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+ if (true) { return playerMap.get(s); } // PaperSpigot
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Iterator iterator = this.players.iterator();
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EntityPlayer entityplayer;
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java b/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
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index 8be0698..4a908c6 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftOfflinePlayer.java
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@@ -144,14 +144,10 @@ public class CraftOfflinePlayer implements OfflinePlayer, ConfigurationSerializa
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}
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public Player getPlayer() {
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- for (Object obj : server.getHandle().players) {
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- EntityPlayer player = (EntityPlayer) obj;
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- if (player.getUniqueID().equals(getUniqueId())) {
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- return (player.playerConnection != null) ? player.playerConnection.getPlayer() : null;
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- }
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- }
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-
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- return null;
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+ // PaperSpigot - Improved player lookup, replace entire method
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+ final EntityPlayer playerEntity = server.getHandle().a(getUniqueId());
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+ return playerEntity != null ? playerEntity.getBukkitEntity() : null;
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+ // PaperSpigot end
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}
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@Override
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 590fe28..54e595d 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -397,7 +397,12 @@ public final class CraftServer implements Server {
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public Player getPlayer(final String name) {
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Validate.notNull(name, "Name cannot be null");
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- Player found = null;
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+ // PaperSpigot start - Improved player lookup changes
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+ Player found = getPlayerExact(name);
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+ if (found != null) {
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+ return found;
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+ }
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+ // PaperSpigot end
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String lowerName = name.toLowerCase();
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int delta = Integer.MAX_VALUE;
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for (Player player : getOnlinePlayers()) {
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@@ -418,15 +423,10 @@ public final class CraftServer implements Server {
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public Player getPlayerExact(String name) {
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Validate.notNull(name, "Name cannot be null");
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- String lname = name.toLowerCase();
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-
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- for (Player player : getOnlinePlayers()) {
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- if (player.getName().equalsIgnoreCase(lname)) {
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- return player;
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- }
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- }
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-
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- return null;
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+ // PaperSpigot start - Improved player lookup, replace whole method
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+ EntityPlayer player = playerList.playerMap.get(name);
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+ return player != null ? player.getBukkitEntity() : null;
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+ // PaperSpigot end
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}
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@Override
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diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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index f07a3a8..b1646e5 100644
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--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
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@@ -103,13 +103,7 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
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}
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public boolean isOnline() {
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- for (Object obj : server.getHandle().players) {
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- EntityPlayer player = (EntityPlayer) obj;
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- if (player.getName().equalsIgnoreCase(getName())) {
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- return true;
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- }
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- }
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- return false;
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+ return server.getHandle().a(getUniqueId()) != null; // PaperSpigot - replace whole method
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}
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public InetSocketAddress getAddress() {
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--
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1.9.1
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