109 Zeilen
5.8 KiB
Diff
109 Zeilen
5.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: egg82 <phantom_zero@ymail.com>
|
|
Date: Tue, 7 Aug 2018 01:24:23 -0600
|
|
Subject: [PATCH] Use ConcurrentHashMap in JsonList
|
|
|
|
This is specifically aimed at fixing #471
|
|
|
|
Using a ConcurrentHashMap because thread safety
|
|
The performance benefit of Map over ConcurrentMap is negligabe at best in this scenaio, as most operations will be get and not add or remove
|
|
Even without considering the use-case the benefits are still negligable
|
|
|
|
Original ideas for the system included an expiration policy and/or handler
|
|
The simpler solution was to use a computeIfPresent in the get method
|
|
This will simultaneously have an O(1) lookup time and automatically expire any values
|
|
Since the get method (nor other similar methods) don't seem to have a critical need to flush the map to disk at any of these points further processing is simply wasteful
|
|
Meaning the original function expired values unrelated to the current value without actually having any explicit need to
|
|
|
|
The h method was heavily modified to be much more efficient in its processing
|
|
Also instead of being called on every get, it's now called just before a save
|
|
This will eliminate stale values being flushed to disk
|
|
|
|
Modified isEmpty to use the isEmpty() method instead of the slightly confusing size() < 1
|
|
The point of this is readability, but does have a side-benefit of a small microptimization
|
|
|
|
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
index e68a0c86f73325189a67186b058062509663f6e7..455f14d758551229d15d703990bb5225fff37700 100644
|
|
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
|
|
@@ -634,7 +634,7 @@ public abstract class PlayerList {
|
|
} else if (!this.isWhiteListed(gameprofile, event)) { // Paper - ProfileWhitelistVerifyEvent
|
|
//ichatmutablecomponent = Component.translatable("multiplayer.disconnect.not_whitelisted"); // Paper
|
|
//event.disallow(PlayerLoginEvent.Result.KICK_WHITELIST, net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserialize(org.spigotmc.SpigotConfig.whitelistMessage)); // Spigot // Paper - Adventure - moved to isWhitelisted
|
|
- } else if (this.getIpBans().isBanned(socketaddress) && !this.getIpBans().get(socketaddress).hasExpired()) {
|
|
+ } else if (this.getIpBans().isBanned(socketaddress) && getIpBans().get(socketaddress) != null && !this.getIpBans().get(socketaddress).hasExpired()) { // Paper - fix NPE with temp ip bans
|
|
IpBanListEntry ipbanentry = this.ipBans.get(socketaddress);
|
|
|
|
ichatmutablecomponent = Component.translatable("multiplayer.disconnect.banned_ip.reason", ipbanentry.getReason());
|
|
diff --git a/src/main/java/net/minecraft/server/players/StoredUserList.java b/src/main/java/net/minecraft/server/players/StoredUserList.java
|
|
index 4d6f5e627d386f9ca2d7653b0f485c82a13557f5..35f973cc2c0989256fa21abaf0327c2f36dbe4c9 100644
|
|
--- a/src/main/java/net/minecraft/server/players/StoredUserList.java
|
|
+++ b/src/main/java/net/minecraft/server/players/StoredUserList.java
|
|
@@ -31,7 +31,7 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
|
|
private static final Logger LOGGER = LogUtils.getLogger();
|
|
private static final Gson GSON = (new GsonBuilder()).setPrettyPrinting().create();
|
|
private final File file;
|
|
- private final Map<String, V> map = Maps.newHashMap();
|
|
+ private final Map<String, V> map = Maps.newConcurrentMap(); // Paper - Use ConcurrentHashMap in JsonList
|
|
|
|
public StoredUserList(File file) {
|
|
this.file = file;
|
|
@@ -54,8 +54,11 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
|
|
|
|
@Nullable
|
|
public V get(K key) {
|
|
- this.removeExpired();
|
|
- return (V) this.map.get(this.getKeyForUser(key)); // CraftBukkit - fix decompile error
|
|
+ // Paper start - Use ConcurrentHashMap in JsonList
|
|
+ return (V) this.map.computeIfPresent(this.getKeyForUser(key), (k, v) -> {
|
|
+ return v.hasExpired() ? null : v;
|
|
+ });
|
|
+ // Paper end - Use ConcurrentHashMap in JsonList
|
|
}
|
|
|
|
public void remove(K key) {
|
|
@@ -78,7 +81,7 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
|
|
}
|
|
|
|
public boolean isEmpty() {
|
|
- return this.map.size() < 1;
|
|
+ return this.map.isEmpty(); // Paper - Use ConcurrentHashMap in JsonList
|
|
}
|
|
|
|
protected String getKeyForUser(K profile) {
|
|
@@ -90,25 +93,7 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
|
|
}
|
|
|
|
private void removeExpired() {
|
|
- List<K> list = Lists.newArrayList();
|
|
- Iterator iterator = this.map.values().iterator();
|
|
-
|
|
- while (iterator.hasNext()) {
|
|
- V v0 = (V) iterator.next(); // CraftBukkit - decompile error
|
|
-
|
|
- if (v0.hasExpired()) {
|
|
- list.add(v0.getUser());
|
|
- }
|
|
- }
|
|
-
|
|
- iterator = list.iterator();
|
|
-
|
|
- while (iterator.hasNext()) {
|
|
- K k0 = (K) iterator.next(); // CraftBukkit - decompile error
|
|
-
|
|
- this.map.remove(this.getKeyForUser(k0));
|
|
- }
|
|
-
|
|
+ this.map.values().removeIf(StoredUserEntry::hasExpired); // Paper - Use ConcurrentHashMap in JsonList
|
|
}
|
|
|
|
protected abstract StoredUserEntry<K> createEntry(JsonObject json);
|
|
@@ -118,6 +103,7 @@ public abstract class StoredUserList<K, V extends StoredUserEntry<K>> {
|
|
}
|
|
|
|
public void save() throws IOException {
|
|
+ this.removeExpired(); // Paper - remove expired values before saving
|
|
JsonArray jsonarray = new JsonArray();
|
|
Stream<JsonObject> stream = this.map.values().stream().map((jsonlistentry) -> { // CraftBukkit - decompile error
|
|
JsonObject jsonobject = new JsonObject();
|