Commit graph

16 commits

Author SHA1 Message Date
Aikar
56d8694bd9 Add Urgent API for Async Chunks API and use it for Async Teleport
This also cleans up the implementation of Async Chunks to get rid of most
Consumer callbacks and instead return futures.

This lets us propogate errors correctly up the future chain
(barring one isn't lost even deeper in the chain...)

So exceptions can now bubble to plugins using getChunkAtAsync
2020-05-09 22:30:28 -04:00
Aikar
1127deb87d Rebuild all patches using the new rebuild pattern 2020-05-06 05:48:49 -04:00
Aikar
fd5c98a9ef Optimize Network Manager to not need synchronization
Removes synchronization from sending packets
Makes normal packet sends no longer need to be wrapped and queued like it use to work.
Adds more packet queue immunities on top of keep alive to let the following scenarios go out
without delay:
  - Keep Alive
  - Chat
  - Kick
  - All of the packets during the Player Joined World event

Hoping that latter one helps join timeout issues more too for slow connections.

Removes processing packet queue off of main thread
  - for the few cases where it is allowed, order is not necessary nor
    should it even be happening concurrently in first place (handshaking/login/status)

Ensures packets sent asynchronously are dispatched on main thread

This helps ensure safety for ProtocolLib as packet listeners
are commonly accessing world state. This will allow you to schedule
a packet to be sent async, but itll be dispatched sync for packet
listeners to process.

This should solve some deadlock risks

This may provide a decent performance improvement because thread synchronization incurs a cache reset
so by avoiding ever entering a synchronized block, we get to avoid that, and packet sending is a really
hot activity.
2020-05-06 05:22:03 -04:00
Spottedleaf
fbe8958237 Use distance map to optimise entity tracker / Misc Utils
Use the distance map to find candidate players for tracking.

This also ports a few utility changes from Tuinity
2020-05-06 03:44:47 -04:00
Aikar
b06cb423cb Updated Upstream (Bukkit/CraftBukkit)
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

Bukkit Changes:
b999860d SPIGOT-2304: Add LootGenerateEvent

CraftBukkit Changes:
77fd87e4 SPIGOT-2304: Implement LootGenerateEvent
a1a705ee SPIGOT-5566: Doused campfires & fires should call EntityChangeBlockEvent
41712edd SPIGOT-5707: PersistentDataHolder not Persistent on API dropped Item
2020-05-01 18:03:47 -04:00
Aikar
f42b510b51 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

Bukkit Changes:
220bc594 #486: Add method to get player's attack cooldown
21853d39 SPIGOT-5681: Increase max plugin channel size
5b972adc Improve build process
b55e58d9 Note which custom generator is missing required method

CraftBukkit Changes:
893ad93b #650: Add method to get player's attack cooldown
ef706b06 #655: Added support for the VM tag jansi.passthrough when processing messages sent to a ColouredConsoleSender.
e0cfb347 SPIGOT-5689: Fireball.setDirection increases velocity too much
94cb030f SPIGOT-5673: swingHand API does not show to self
b331a055 SPIGOT-5680: isChunkGenerated creates empty region files
e1335932 Improve build process
a8ec1d60 Add a couple of method null checks to CraftWorld
ce66f693 Misc checkstyle fixes
8bd0e9ab SPIGOT-5669: Fix Beehive.isSedated

Spigot Changes:
2040c4c4 SPIGOT-5677, MC-114796: Fix portals generating outside world border
ab8f6b5a Rebuild patches
e7dc2f53 Rebuild patches
2020-04-27 03:34:45 -04:00
Aikar
879269f221 Improve mid tick chunk loading, Fix Oversleep, other improvements
Process loads outside of any canSleep check. Original intent was to
only apply those restrictions to generations but realized I had some
checks higher up the call chain.

Reworked the back off strategy to just run every 1 millisecond per world,
and to apply the per tick limit to generations only.

This guarantees that your chunk will load with at most around 1ms delay.

Additionally, fire midTick processing in a few more places, notably the
oversleep section so we can keep processing loads here too which has
a large up to 50ms window...

Speaking of oversleep, we had a bug in our implementation changes for
Timings that caused oversleep to not sleep the correct amount.

Because we now moved it into the NEXT tick instead of THIS tick, the
value of nextTick had already been increased to +50ms, resulting in
the risk of sleeping more than it should, but, more importantly, this
caused every task that was trying to NOT run during oversleep to actually
run during oversleep.

This is now fixed.

Another small tweak is to the /tps command, to no longer show the star when
TPS is right at 20.

Due to ineffeciencies in the sleep precision, TPS is commonly 20.02.
This causes the star to show up almost constantly, so now only show it if
we actually hit a real "catchup".

This commit also improves the changes to the CallbackExecutor, in that
it now is also recursion safe.

It was possible that the executor could run tasks out of desired order
if the executor task scheduled more executor tasks.

We solve this by ensuring new additions do not enter the currently iterated queue.

Each depth level will have its own queue.

Fixes #3220
2020-04-25 23:47:29 -04:00
Aikar
9c59e219f6 Improve Async Login so pending connections dont get exposed
We still keep vanilla process of waiting for existing session to be removed before logging in
by storing a separate map of pending.

also fire the callback using executor incase further recursion causes any trouble
2020-04-24 05:33:33 -04:00
Ytnoos
f7e48582b5 Revert "Re-track players that dismount from other players" 2020-04-22 00:06:30 +02:00
Spottedleaf
d77bc736a0 Improve async login (#3189)
Add helper functions to ChunkProviderServer to make this easier
for other uses

Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
2020-04-19 10:58:02 -07:00
Aikar
9fc8102ef5 Load Spawn Chunks Asynchronously and Spiral Out
Ensures absolute center is first in priority
Speeds up server startup
2020-04-19 06:01:07 -04:00
Spottedleaf
973a5271c3 Port 04-Util.patch from Tuinity (#3136) 2020-04-12 22:34:18 -07:00
Aikar
81a57f3fde Fix issues with 167 causing crashes due to missing chunks - Fixes #3122
Forgot to flip the pending boolean back to false, causing it to copy
empty data on the next tick if nothing else triggered a load.

haven't managed to actually reproduce the crash others got, but did
verify that the bad copy was occurring erasing the data.

also fixed a bug with chunk load callback not executing before
another one was scheduled.
2020-04-10 14:11:46 -04:00
Aikar
587c1e02a5 Improve Optimize Memory use logic to make iterator safer and fix bad plugins like P2
Accessing world state async is bad mkay. But we know you didn't do it city <3
2020-04-08 21:07:59 -04:00
Aikar
00570dc4bb Fix incorrect keyword use on visibleChunksClone 2020-04-08 04:12:48 -04:00
Aikar
988431a872 Optimize PlayerChunkMap memory use for visibleChunks
No longer clones visible chunks which is causing massive memory
allocation issues, likely the source of Humongous Objects on large servers.

Instead we just synchronize, clear and rebuild, reusing the same object buffers
as before with only 2 small objects created (FastIterator/MapEntry)

This should result in siginificant memory use reduction and improved GC behavior.
2020-04-08 03:09:05 -04:00