Paper/Spigot-API-Patches/0149-Performance-Concurrency-Improvements-to-Permissions.patch
Shane Freeder ea855e2b46 Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Developers!: You will need to clean up your work/Minecraft/1.13.2 folder
for this

Also, restore a patch that was dropped in the last upstream

Bukkit Changes:
279eeab3 Fix command description not being set
96e2bb18 Remove debug print from SyntheticEventTest

CraftBukkit Changes:
d3ed1516 Fix dangerously threaded beacons
217a293d Don't relocate joptsimple to allow --help to work.
1be05a21 Prepare for imminent Java 12 release
a49270b2 Mappings Update
5259d80c SPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports

Spigot Changes:
e6eb36f2 Rebuild patches
2019-03-20 01:55:16 +00:00

116 Zeilen
5.0 KiB
Diff

From 875d7e1da48a97e3d239c85b153b5db4f8bc4296 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 13 Sep 2018 20:51:50 -0400
Subject: [PATCH] Performance & Concurrency Improvements to Permissions
Modifying of permissions was only half protected, enabling concurrency
issues to occur if permissions were modified async.
While no plugin really should be doing that, modifying operations
are not heavily called, so they are safe to add synchronization to.
Now, all modification API's will be synchronized ensuring safety.
Additionally, hasPermission was victim to a common java newbie mistake
of calling if (containsKey(k)) return get(k), resulting in 2 map lookups.
Optimized it to simply be a single get call cutting permission map
lookups in half.
diff --git a/src/main/java/org/bukkit/permissions/PermissibleBase.java b/src/main/java/org/bukkit/permissions/PermissibleBase.java
index 27c14c0f5..72fff64e0 100644
--- a/src/main/java/org/bukkit/permissions/PermissibleBase.java
+++ b/src/main/java/org/bukkit/permissions/PermissibleBase.java
@@ -70,8 +70,11 @@ public class PermissibleBase implements Permissible {
String name = inName.toLowerCase(java.util.Locale.ENGLISH);
- if (isPermissionSet(name)) {
- return permissions.get(name).getValue();
+ // Paper start
+ PermissionAttachmentInfo info = permissions.get(name);
+ if (info != null) {
+ return info.getValue();
+ // Paper end
} else {
Permission perm = Bukkit.getServer().getPluginManager().getPermission(name);
@@ -90,14 +93,17 @@ public class PermissibleBase implements Permissible {
String name = perm.getName().toLowerCase(java.util.Locale.ENGLISH);
- if (isPermissionSet(name)) {
- return permissions.get(name).getValue();
+ // Paper start
+ PermissionAttachmentInfo info = permissions.get(name);
+ if (info != null) {
+ return info.getValue();
}
+ // Paper end
return perm.getDefault().getValue(isOp());
}
@NotNull
- public PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value) {
+ public synchronized PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value) { // Paper - synchronized
if (name == null) {
throw new IllegalArgumentException("Permission name cannot be null");
} else if (plugin == null) {
@@ -115,7 +121,7 @@ public class PermissibleBase implements Permissible {
}
@NotNull
- public PermissionAttachment addAttachment(@NotNull Plugin plugin) {
+ public synchronized PermissionAttachment addAttachment(@NotNull Plugin plugin) { // Paper - synchronized
if (plugin == null) {
throw new IllegalArgumentException("Plugin cannot be null");
} else if (!plugin.isEnabled()) {
@@ -130,7 +136,7 @@ public class PermissibleBase implements Permissible {
return result;
}
- public void removeAttachment(@NotNull PermissionAttachment attachment) {
+ public synchronized void removeAttachment(@NotNull PermissionAttachment attachment) { // Paper - synchronized
if (attachment == null) {
throw new IllegalArgumentException("Attachment cannot be null");
}
@@ -149,7 +155,7 @@ public class PermissibleBase implements Permissible {
}
}
- public void recalculatePermissions() {
+ public synchronized void recalculatePermissions() { // Paper - synchronized
clearPermissions();
Set<Permission> defaults = Bukkit.getServer().getPluginManager().getDefaultPermissions(isOp());
Bukkit.getServer().getPluginManager().subscribeToDefaultPerms(isOp(), parent);
@@ -197,7 +203,7 @@ public class PermissibleBase implements Permissible {
}
@Nullable
- public PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value, int ticks) {
+ public synchronized PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value, int ticks) { // Paper
if (name == null) {
throw new IllegalArgumentException("Permission name cannot be null");
} else if (plugin == null) {
@@ -216,7 +222,7 @@ public class PermissibleBase implements Permissible {
}
@Nullable
- public PermissionAttachment addAttachment(@NotNull Plugin plugin, int ticks) {
+ public synchronized PermissionAttachment addAttachment(@NotNull Plugin plugin, int ticks) { // Paper - synchronized
if (plugin == null) {
throw new IllegalArgumentException("Plugin cannot be null");
} else if (!plugin.isEnabled()) {
@@ -235,7 +241,7 @@ public class PermissibleBase implements Permissible {
}
@NotNull
- public Set<PermissionAttachmentInfo> getEffectivePermissions() {
+ public synchronized Set<PermissionAttachmentInfo> getEffectivePermissions() { // Paper - synchronized
return new HashSet<PermissionAttachmentInfo>(permissions.values());
}
--
2.21.0