01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
119 Zeilen
6.0 KiB
Diff
119 Zeilen
6.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: underscore11code <minecrafter11mrt@gmail.com>
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Date: Fri, 23 Jul 2021 23:01:42 -0700
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Subject: [PATCH] Add System.out/err catcher
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diff --git a/src/main/java/io/papermc/paper/logging/SysoutCatcher.java b/src/main/java/io/papermc/paper/logging/SysoutCatcher.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..76d0d00cd6742991e3f3ec827a75ee87d856b6c9
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/logging/SysoutCatcher.java
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@@ -0,0 +1,94 @@
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+package io.papermc.paper.logging;
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+
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+import org.bukkit.Bukkit;
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+import org.bukkit.plugin.java.JavaPlugin;
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+import org.jetbrains.annotations.NotNull;
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+import org.jetbrains.annotations.Nullable;
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+
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+import java.io.OutputStream;
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+import java.io.PrintStream;
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+import java.util.Objects;
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+import java.util.concurrent.ConcurrentHashMap;
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+import java.util.concurrent.ConcurrentMap;
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+import java.util.concurrent.TimeUnit;
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+import java.util.logging.Level;
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+
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+public final class SysoutCatcher {
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+ private static final boolean SUPPRESS_NAGS = Boolean.getBoolean("io.papermc.paper.suppress.sout.nags");
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+ // Nanoseconds between nag at most; if interval is caught first, this is reset.
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+ // <= 0 for disabling.
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+ private static final long NAG_TIMEOUT = TimeUnit.MILLISECONDS.toNanos(
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+ Long.getLong("io.papermc.paper.sout.nags.timeout", TimeUnit.MINUTES.toMillis(5L)));
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+ // Count since last nag; if timeout is first, this is reset.
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+ // <= 0 for disabling.
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+ private static final long NAG_INTERVAL = Long.getLong("io.papermc.paper.sout.nags.interval", 200L);
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+
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+ // We don't particularly care about how correct this is at any given moment; let's do it on a best attempt basis.
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+ // The records are also pretty small, so let's just go for a size of 64 to start...
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+ //
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+ // Content: Plugin name => nag object
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+ // Why plugin name?: This doesn't store a reference to the plugin; keeps the reload ability.
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+ // Why not clean on reload?: Effort.
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+ private final ConcurrentMap<String, PluginNag> nagRecords = new ConcurrentHashMap<>(64);
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+
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+ public SysoutCatcher() {
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+ System.setOut(new WrappedOutStream(System.out, Level.INFO, "[STDOUT] "));
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+ System.setErr(new WrappedOutStream(System.err, Level.SEVERE, "[STDERR] "));
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+ }
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+
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+ private final class WrappedOutStream extends PrintStream {
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+ private static final StackWalker STACK_WALKER = StackWalker.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE);
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+ private final Level level;
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+ private final String prefix;
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+
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+ public WrappedOutStream(@NotNull final OutputStream out, final Level level, final String prefix) {
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+ super(out);
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+ this.level = level;
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+ this.prefix = prefix;
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+ }
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+
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+ @Override
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+ public void println(@Nullable final String line) {
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+ final Class<?> clazz = STACK_WALKER.getCallerClass();
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+ try {
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+ final JavaPlugin plugin = JavaPlugin.getProvidingPlugin(clazz);
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+
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+ // Instead of just printing the message, send it to the plugin's logger
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+ plugin.getLogger().log(this.level, this.prefix + line);
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+
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+ if (SysoutCatcher.SUPPRESS_NAGS) {
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+ return;
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+ }
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+ if (SysoutCatcher.NAG_INTERVAL > 0 || SysoutCatcher.NAG_TIMEOUT > 0) {
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+ final PluginNag nagRecord = SysoutCatcher.this.nagRecords.computeIfAbsent(plugin.getName(), k -> new PluginNag());
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+ final boolean hasTimePassed = SysoutCatcher.NAG_TIMEOUT > 0
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+ && (nagRecord.lastNagTimestamp == Long.MIN_VALUE
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+ || nagRecord.lastNagTimestamp + SysoutCatcher.NAG_TIMEOUT <= System.nanoTime());
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+ final boolean hasMessagesPassed = SysoutCatcher.NAG_INTERVAL > 0
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+ && (nagRecord.messagesSinceNag == Long.MIN_VALUE
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+ || ++nagRecord.messagesSinceNag >= SysoutCatcher.NAG_INTERVAL);
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+ if (!hasMessagesPassed && !hasTimePassed) {
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+ return;
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+ }
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+ nagRecord.lastNagTimestamp = System.nanoTime();
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+ nagRecord.messagesSinceNag = 0;
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+ }
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+ Bukkit.getLogger().warning(
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+ String.format("Nag author(s): '%s' of '%s' about their usage of System.out/err.print. "
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+ + "Please use your plugin's logger instead (JavaPlugin#getLogger).",
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+ plugin.getDescription().getAuthors(),
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+ plugin.getName())
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+ );
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+ } catch (final IllegalArgumentException | IllegalStateException e) {
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+ // If anything happens, the calling class doesn't exist, there is no JavaPlugin that "owns" the calling class, etc
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+ // Just print out normally, with some added information
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+ Bukkit.getLogger().log(this.level, String.format("%s[%s] %s", this.prefix, clazz.getName(), line));
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+ }
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+ }
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+ }
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+
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+ private static class PluginNag {
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+ private long lastNagTimestamp = Long.MIN_VALUE;
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+ private long messagesSinceNag = Long.MIN_VALUE;
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+ }
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+}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 60224fce02148ac7e8a28524b8769372eff98817..7c5dd4a3bf98599356022539f203ef276c29cbab 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -284,6 +284,7 @@ public final class CraftServer implements Server {
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public int reloadCount;
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private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
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public static Exception excessiveVelEx; // Paper - Velocity warnings
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+ private final io.papermc.paper.logging.SysoutCatcher sysoutCatcher = new io.papermc.paper.logging.SysoutCatcher(); // Paper
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static {
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ConfigurationSerialization.registerClass(CraftOfflinePlayer.class);
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