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Improve Timings stack protection more

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Ensures in more places that exceptions will not corrupt the Timings stack.

Timings will now better report stack corruption and auto repair itself too.
This commit is contained in:
Aikar
2019-03-26 00:31:34 -04:00
parent 9329e1383d
commit 92059ef6ba
3 changed files with 35 additions and 15 deletions
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36
Spigot-API-Patches/Timings-v2.patch
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@@ -475,7 +475,7 @@ index 000000000..a5d13a1e4
+}
diff --git a/src/main/java/co/aikar/timings/TimingHandler.java b/src/main/java/co/aikar/timings/TimingHandler.java
new file mode 100644
index 000000000..2a727994a
index 000000000..bb46cb633
--- /dev/null
+++ b/src/main/java/co/aikar/timings/TimingHandler.java
@@ -0,0 +0,0 @@
@@ -520,7 +520,7 @@ index 000000000..2a727994a
+class TimingHandler implements Timing {
+
+ private static AtomicInteger idPool = new AtomicInteger(1);
+ static Deque<TimingHandler> TIMING_STACK = new ArrayDeque<>();
+ private static Deque<TimingHandler> TIMING_STACK = new ArrayDeque<>();
+ final int id = idPool.getAndIncrement();
+
+ final TimingIdentifier identifier;
@@ -587,10 +587,16 @@ index 000000000..2a727994a
+
+ public void stopTiming() {
+ if (enabled && timingDepth > 0 && Bukkit.isPrimaryThread() && --timingDepth == 0 && start != 0) {
+ TimingHandler last = TIMING_STACK.removeLast();
+ if (last != this) {
+ Logger.getGlobal().log(Level.SEVERE, "TIMING_STACK_CORRUPTION - Report this to Paper! ( " + this.identifier + ":" + last +")", new Throwable());
+ TIMING_STACK.addLast(last); // Add it back
+ TimingHandler last;
+ while ((last = TIMING_STACK.removeLast()) != this) {
+ last.timingDepth = 0;
+ String reportTo;
+ if ("minecraft".equals(last.identifier.group)) {
+ reportTo = "Paper! This is a potential bug in Paper";
+ } else {
+ reportTo = "the plugin " + last.identifier.group + "(Look for errors above this in the logs)";
+ }
+ Logger.getGlobal().log(Level.SEVERE, "TIMING_STACK_CORRUPTION - Report this to " + reportTo + " (" + last.identifier +" did not stopTiming)", new Throwable());
+ }
+ addDiff(System.nanoTime() - start, TIMING_STACK.peekLast());
+
@@ -3356,7 +3362,7 @@ index 000000000..ca1893e9f
+
+}
diff --git a/src/main/java/org/bukkit/command/SimpleCommandMap.java b/src/main/java/org/bukkit/command/SimpleCommandMap.java
index 1586f6480..f7ec2e55f 100644
index 1586f6480..6a786b8c5 100644
--- a/src/main/java/org/bukkit/command/SimpleCommandMap.java
+++ b/src/main/java/org/bukkit/command/SimpleCommandMap.java
@@ -0,0 +0,0 @@ public class SimpleCommandMap implements CommandMap {
@@ -3387,8 +3393,22 @@ index 1586f6480..f7ec2e55f 100644
+ // Paper end
+
try {
target.timings.startTiming(); // Spigot
- target.timings.startTiming(); // Spigot
+ try (co.aikar.timings.Timing ignored = target.timings.startTiming()) { // Paper - use try with resources
// Note: we don't return the result of target.execute as thats success / failure, we return handled (true) or not handled (false)
target.execute(sender, sentCommandLabel, Arrays.copyOfRange(args, 1, args.length));
- target.timings.stopTiming(); // Spigot
+ } // target.timings.stopTiming(); // Spigot // Paper
} catch (CommandException ex) {
- target.timings.stopTiming(); // Spigot
+ //target.timings.stopTiming(); // Spigot // Paper
throw ex;
} catch (Throwable ex) {
- target.timings.stopTiming(); // Spigot
+ //target.timings.stopTiming(); // Spigot // Paper
throw new CommandException("Unhandled exception executing '" + commandLine + "' in " + target, ex);
}
diff --git a/src/main/java/org/bukkit/command/defaults/TimingsCommand.java b/src/main/java/org/bukkit/command/defaults/TimingsCommand.java
deleted file mode 100644
index 1e6e7033d..000000000