dordsor21 7a0dc39eb7 Apply a lot of synchronization to ChunkHolder (#941) ... This is basically the main "chunk" class for internal FAWE. Chunk operations should (and are) almost always single-threaded operations, however, under certain circumstances it is possible for the chunk to be "called" (flushed: written to the world and sent to the player) from a separate thread. This would specifically occur from SingleThreadQueueExtent when there are a lot of chunks being loaded in memory by FAWE (where the chunk would then be submitted to a multi-threaded queue). It would therefore be possible for a thread accessing the chunk to attempt to access it in the middle of the call, which can lead to a number of issues, and it is my opinion that the most frequent of these is the NPE seen during lighting operations, where new chunks can be accessed/loaded very quickly, increasing the likelihood for the aforementioned synchronisation issue to occur. Co-authored-by: Matt <4009945+MattBDev@users.noreply.github.com>		2021-03-03 15:26:00 +01:00
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boydti/fawe	Apply a lot of synchronization to ChunkHolder (#941)	2021-03-03 15:26:00 +01:00
sk89q	Show a message with install instructions when running the jar file	2021-02-25 22:58:17 +01:00