[executors] implement main thread executors in 1.13.2-

Author: SpaceWalkerRS

libraries/executors/README.md

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+# Executors API
+
+The Executors API provides an interface for main thread and background thread executors.

libraries/executors/build.gradle

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+setUpLibrary(project)
+
+dependencies {
+	implementation 'com.google.code.gson:gson:2.8.0'
+}

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/build.gradle

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+setUpModule(project)

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/gradle.properties

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+min_mc_version = 1.7.6-pre1
+max_mc_version = 1.7.10
+minecraft_dependency = >=1.7.6-rc.1 <=1.7.10
+
+minecraft_version = 1.7.10
+nests_build = 6

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/src/main/java/net/ornithemc/osl/executors/impl/mixin/client/MinecraftMixin.java

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+package net.ornithemc.osl.executors.impl.mixin.client;
+
+import java.util.concurrent.Executor;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+
+import com.google.common.util.concurrent.ListenableFuture;
+
+import net.minecraft.client.Minecraft;
+
+@Mixin(Minecraft.class)
+public class MinecraftMixin implements Executor {
+
+	@Shadow
+	private ListenableFuture<?> executeTask(Runnable task) { return null; }
+
+	@Override
+	public void execute(Runnable command) {
+		this.executeTask(command);
+	}
+}

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/src/main/java/net/ornithemc/osl/executors/impl/mixin/server/MinecraftServerMixin.java

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+package net.ornithemc.osl.executors.impl.mixin.server;
+
+import java.util.ArrayDeque;
+import java.util.Queue;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import net.minecraft.server.MinecraftServer;
+
+import net.ornithemc.osl.executors.api.Executors;
+import net.ornithemc.osl.executors.api.MainThreadExecutor;
+
+@Mixin(MinecraftServer.class)
+public class MinecraftServerMixin implements MainThreadExecutor {
+
+	@Unique
+	private final Queue<Runnable> pendingTasks = new ArrayDeque<>();
+
+	@Unique
+	private Thread thread;
+
+	@Inject(
+		method = "run",
+		at = @At(
+			value = "HEAD"
+		)
+	)
+	private void osl$executors$setThread(CallbackInfo ci) {
+		this.thread = Thread.currentThread();
+	}
+
+	@Override
+	public void execute(Runnable command) {
+		if (this.isOnSameThread()) {
+			command.run();
+		} else {
+			synchronized (this.pendingTasks) {
+				this.pendingTasks.add(command);
+			}
+		}
+	}
+
+	@Override
+	public boolean isOnSameThread() {
+		return Thread.currentThread() == this.thread;
+	}
+
+	@Inject(
+		method = "tick",
+		at  = @At(
+			value = "HEAD"
+		)
+	)
+	private void osl$executors$runPendingTasks(CallbackInfo ci) {
+		this.runPendingTasks();
+	}
+
+	@Unique
+	private void runPendingTasks() {
+		synchronized (this.pendingTasks) {
+			while (!this.pendingTasks.isEmpty()) {
+				this.runTask(this.pendingTasks.poll());
+			}
+		}
+	}
+
+	@Unique
+	private void runTask(Runnable task) {
+		try {
+			task.run();
+		} catch (Throwable t) {
+			Executors.LOGGER.fatal("Error running task", t);
+		}
+	}
+}

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/src/main/resources/fabric.mod.json

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+{
+  "schemaVersion": 1,
+  "id": "osl-executors",
+  "version": "0.1.0-alpha.1+mc1.7.6-pre1-mc1.7.10",
+  "environment": "*",
+  "mixins": [
+    "osl.executors.mixins.json"
+  ],
+  "accessWidener": "osl.executors.classtweaker",
+  "depends": {
+    "fabricloader": "\u003e\u003d0.17.3",
+    "minecraft": "\u003e\u003d1.7.6-rc.1 \u003c\u003d1.7.10",
+    "osl-core": "\u003e\u003d0.7.0"
+  },
+  "name": "OSL Executors",
+  "description": "Interface for main thread and background threads executors.",
+  "authors": [
+    "OrnitheMC"
+  ],
+  "contact": {
+    "homepage": "https://ornithemc.net/",
+    "issues": "https://github.com/OrnitheMC/ornithe-standard-libraries/issues",
+    "sources": "https://github.com/OrnitheMC/ornithe-standard-libraries"
+  },
+  "license": "Apache-2.0"
+}

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/src/main/resources/osl.executors.classtweaker

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+classTweaker	v1	named
+
+transitive-inject-interface	net/minecraft/client/Minecraft	java/util/concurrent/Executor
+transitive-inject-interface	net/minecraft/server/MinecraftServer	net/ornithemc/osl/executors/api/MainThreadExecutor

libraries/executors/executors-mc1.7.6-pre1-mc1.7.10/src/main/resources/osl.executors.mixins.json

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+{
+	"required": true,
+	"minVersion": "0.8",
+	"package": "net.ornithemc.osl.executors.impl.mixin",
+	"compatibilityLevel": "JAVA_8",
+	"mixins": [
+	],
+	"client": [
+		"client.MinecraftMixin"
+	],
+	"server": [
+		"server.MinecraftServerMixin"
+	],
+	"injectors": {
+		"defaultRequire": 1
+	}
+}

libraries/executors/executors-mc14w02a-mc14w06b/build.gradle

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+setUpModule(project)