Upstream/Folia
1
0
Fork 0
mirror of https://github.com/PaperMC/Folia.git synced 2024-07-06 12:16:32 +02:00
Code Issues Packages Projects Releases Wiki Activity

Make ServerLevel#onTrackingEnd map data access thread-safe

Browse Source 
We need to synchronise on the map data object and on the
cache, as is done everywhere else for access of such data
This commit is contained in:
Spottedleaf 2023-03-02 23:39:55 -08:00
parent bb3f8a4aea
commit f9327302d8
1 changed files with 31 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
patches/server/0004-Threaded-Regions.patch
View File

@ -13615,7 +13615,7 @@ index 736f37979c882e41e7571202df38eb6a2923fcb0..06ad3857f04ec073ae753b6569c5ae2c
}
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 714637cdd9dcdbffa344b19e77944fb3c7541ff7..e96a348c231ae77efc3175834f52cbc864cb7253 100644
index 714637cdd9dcdbffa344b19e77944fb3c7541ff7..1a6ff553e8d286bdd8b46ce366a4cbd4485c0e6f 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -192,35 +192,34 @@ public class ServerLevel extends Level implements WorldGenLevel {
@ -14778,7 +14778,35 @@ index 714637cdd9dcdbffa344b19e77944fb3c7541ff7..e96a348c231ae77efc3175834f52cbc8
}
}
@@ -2666,7 +2835,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
@@ -2618,11 +2787,18 @@ public class ServerLevel extends Level implements WorldGenLevel {
{
com.google.common.collect.Streams.stream( ServerLevel.this.getServer().getAllLevels() ).map( ServerLevel::getDataStorage ).forEach( (worldData) ->
{
- for (Object o : worldData.cache.values() )
+ // Folia start - make map data thread-safe
+ List<Object> worldDataCache;
+ synchronized (worldData.cache) {
+ worldDataCache = new java.util.ArrayList<>(worldData.cache.values());
+ }
+ for (Object o : worldDataCache )
+ // Folia end - make map data thread-safe
{
if ( o instanceof MapItemSavedData )
{
MapItemSavedData map = (MapItemSavedData) o;
+ synchronized (map) { // Folia - make map data thread-safe
map.carriedByPlayers.remove( (Player) entity );
for ( Iterator<MapItemSavedData.HoldingPlayer> iter = (Iterator<MapItemSavedData.HoldingPlayer>) map.carriedBy.iterator(); iter.hasNext(); )
{
@@ -2632,6 +2808,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
iter.remove();
}
}
+ } // Folia - make map data thread-safe
}
}
} );
@@ -2666,7 +2843,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
Util.logAndPauseIfInIde("onTrackingStart called during navigation iteration", new IllegalStateException("onTrackingStart called during navigation iteration"));
}
@ -14787,7 +14815,7 @@ index 714637cdd9dcdbffa344b19e77944fb3c7541ff7..e96a348c231ae77efc3175834f52cbc8
}
if (entity instanceof EnderDragon) {
@@ -2677,13 +2846,16 @@ public class ServerLevel extends Level implements WorldGenLevel {
@@ -2677,13 +2854,16 @@ public class ServerLevel extends Level implements WorldGenLevel {
for (int j = 0; j < i; ++j) {
EnderDragonPart entitycomplexpart = aentitycomplexpart[j];