Upstream/Minestom
1
0
Fork 0
mirror of https://github.com/Minestom/Minestom.git synced 2024-06-26 06:24:54 +02:00
Code Issues Projects Releases Wiki Activity

Prevent deadlock when adding/removing viewers very fast

Browse Source 
Signed-off-by: TheMode <themode@outlook.fr>
This commit is contained in:
TheMode 2021-09-20 18:42:31 +02:00
parent e65c9f6a79
commit 4e58d61345
1 changed files with 9 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/main/java/net/minestom/server/entity/Entity.java
View File

@ -131,11 +131,6 @@ public class Entity implements Viewable, Tickable, TagHandler, PermissionHandler
private final Acquirable<Entity> acquirable = Acquirable.of(this);
/**
* Lock used to support #switchEntityType
*/
private final Object entityTypeLock = new Object();
public Entity(@NotNull EntityType entityType, @NotNull UUID uuid) {
this.id = generateId();
this.entityType = entityType;
@ -310,10 +305,8 @@ public class Entity implements Viewable, Tickable, TagHandler, PermissionHandler
@Override
public final boolean addViewer(@NotNull Player player) {
synchronized (this.entityTypeLock) {
return addViewer0(player);
}
}
protected boolean addViewer0(@NotNull Player player) {
if (player == this || !this.viewers.add(player)) {
@ -338,10 +331,8 @@ public class Entity implements Viewable, Tickable, TagHandler, PermissionHandler
@Override
public final boolean removeViewer(@NotNull Player player) {
synchronized (this.entityTypeLock) {
return removeViewer0(player);
}
}
protected boolean removeViewer0(@NotNull Player player) {
if (player == this || !viewers.remove(player)) {
@ -369,8 +360,7 @@ public class Entity implements Viewable, Tickable, TagHandler, PermissionHandler
*
* @param entityType the new entity type
*/
public void switchEntityType(@NotNull EntityType entityType) {
synchronized (entityTypeLock) {
public synchronized void switchEntityType(@NotNull EntityType entityType) {
this.entityType = entityType;
this.metadata = new Metadata(this);
this.entityMeta = EntityTypeImpl.createMeta(entityType, this, this.metadata);
@ -379,7 +369,6 @@ public class Entity implements Viewable, Tickable, TagHandler, PermissionHandler
getViewers().forEach(this::removeViewer0);
viewers.forEach(this::addViewer0);
}
}
@NotNull
@Override