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/*
* This file is licensed under the MIT License, part of Roughly Enough Items.
* Copyright (c) 2018, 2019, 2020, 2021, 2022, 2023 shedaniel
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package me.shedaniel.rei.impl.common.plugins;
import com.google.common.base.Stopwatch;
import com.google.common.base.Suppliers;
import dev.architectury.platform.Platform;
import dev.architectury.utils.Env;
import me.shedaniel.rei.RoughlyEnoughItemsCore;
import me.shedaniel.rei.api.client.config.ConfigObject;
import me.shedaniel.rei.api.common.plugins.PluginManager;
import me.shedaniel.rei.api.common.plugins.REIPlugin;
import me.shedaniel.rei.api.common.registry.ReloadStage;
import me.shedaniel.rei.api.common.util.CollectionUtils;
import me.shedaniel.rei.impl.common.InternalLogger;
import net.fabricmc.api.EnvType;
import net.fabricmc.api.Environment;
import org.jetbrains.annotations.ApiStatus;
import org.jetbrains.annotations.Nullable;
import java.util.List;
import java.util.concurrent.*;
import java.util.function.Supplier;
@ApiStatus.Internal
public class ReloadManagerImpl {
private static final Supplier<Executor> RELOAD_PLUGINS = Suppliers.memoize(() -> Executors.newSingleThreadScheduledExecutor(task -> {
Thread thread = new Thread(task, "REI-ReloadPlugins");
thread.setDaemon(true);
thread.setUncaughtExceptionHandler(($, exception) -> {
if (exception instanceof InterruptedException) {
InternalLogger.getInstance().debug("Interrupted while reloading plugins, could be caused by a new request to reload plugins!", new UncaughtException(exception));
return;
}
InternalLogger.getInstance().throwException(new UncaughtException(exception));
});
return thread;
}));
private static final List<Task> RELOAD_TASKS = new CopyOnWriteArrayList<>();
private static class Task {
private final Future<?> future;
private boolean interrupted = false;
private boolean completed = false;
public Task(Future<?> future) {
this.future = future;
}
}
private static Executor executor() {
if (usesREIThread()) {
return RELOAD_PLUGINS.get();
} else {
return runnable -> {
try {
runnable.run();
} catch (Throwable throwable) {
InternalLogger.getInstance().throwException(throwable);
}
};
}
}
private static boolean usesREIThread() {
if (Platform.getEnvironment() == Env.CLIENT) {
return usesREIThreadClient();
} else {
return false;
}
}
@Environment(EnvType.CLIENT)
private static boolean usesREIThreadClient() {
return ConfigObject.getInstance().doesRegisterRecipesInAnotherThread();
}
public static int countRunningReloadTasks() {
return CollectionUtils.sumInt(RELOAD_TASKS, task -> !task.future.isDone() || !task.completed ? 1 : 0);
}
public static int countUninterruptedRunningReloadTasks() {
return CollectionUtils.sumInt(RELOAD_TASKS, task -> !task.interrupted && (!task.future.isDone() || !task.completed) ? 1 : 0);
}
public static void reloadPlugins(@Nullable ReloadStage start, ReloadInterruptionContext interruptionContext) {
InternalLogger.getInstance().debug("Starting Reload Plugins of stage " + start, new Throwable());
if (usesREIThread()) {
if ((start == ReloadStage.START || start == null) && countRunningReloadTasks() > 0) {
InternalLogger.getInstance().warn("Trying to start reload plugins of stage %s but found %d existing reload task(s)!", start, countRunningReloadTasks());
terminateReloadTasks();
}
if (!RELOAD_TASKS.isEmpty()) {
InternalLogger.getInstance().warn("Found %d existing reload task(s) after trying to terminate them!", RELOAD_TASKS.size());
}
Task[] task = new Task[1];
Future<?> future = CompletableFuture.runAsync(() -> reloadPlugins0(start, () -> interruptionContext.isInterrupted() || (task[0] != null && task[0].interrupted)), executor())
.whenComplete((unused, throwable) -> {
// Remove the future from the list of futures
if (task[0] != null) {
task[0].completed = true;
RELOAD_TASKS.remove(task[0]);
task[0] = null;
}
});
task[0] = new Task(future);
RELOAD_TASKS.add(task[0]);
} else {
reloadPlugins0(start, interruptionContext);
}
}
private static void reloadPlugins0(@Nullable ReloadStage stage, ReloadInterruptionContext interruptionContext) {
if (stage == null) {
for (ReloadStage reloadStage : ReloadStage.values()) {
reloadPlugins0(reloadStage, interruptionContext);
}
} else {
reloadPlugins0(PluginReloadContext.of(stage, interruptionContext));
}
}
private static void reloadPlugins0(PluginReloadContext context) {
if (context.stage() == ReloadStage.START) RoughlyEnoughItemsCore.PERFORMANCE_LOGGER.clear();
try {
for (PluginManager<? extends REIPlugin<?>> instance : PluginManager.getActiveInstances()) {
instance.view().pre(context);
}
for (PluginManager<? extends REIPlugin<?>> instance : PluginManager.getActiveInstances()) {
instance.view().reload(context);
}
for (PluginManager<? extends REIPlugin<?>> instance : PluginManager.getActiveInstances()) {
instance.view().post(context);
}
} catch (InterruptedException e) {
InternalLogger.getInstance().debug("Interrupted while reloading plugins, could be caused by a new request to reload plugins!", e);
} catch (Throwable throwable) {
InternalLogger.getInstance().throwException(throwable);
}
}
public static void terminateReloadTasks() {
if (countUninterruptedRunningReloadTasks() == 0) {
InternalLogger.getInstance().debug("Did not fulfill the request of termination of REI reload tasks because there are no uninterrupted running tasks. This is not an error.");
RELOAD_TASKS.clear();
return;
}
InternalLogger.getInstance().debug("Requested the termination of REI reload tasks.");
for (Task task : RELOAD_TASKS) {
task.interrupted = true;
}
long startTerminateTime = System.currentTimeMillis();
Stopwatch stopwatch = Stopwatch.createStarted();
while (countRunningReloadTasks() > 0) {
try {
Thread.sleep(50);
} catch (InterruptedException e) {
InternalLogger.getInstance().error("Thread interrupted while waiting for reload tasks to terminate!", e);
}
if (System.currentTimeMillis() - startTerminateTime > 5000) {
InternalLogger.getInstance().error("Took too long to terminate reload tasks (over 5 seconds)! Now forcefully terminating them!");
for (Task task : RELOAD_TASKS) {
task.future.cancel(Platform.isFabric());
}
break;
}
}
if (countRunningReloadTasks() == 0) {
RELOAD_TASKS.clear();
InternalLogger.getInstance().debug("Successfully terminated reload tasks in %s", stopwatch.stop());
} else {
InternalLogger.getInstance().error("Failed to terminate reload tasks! Found %d running tasks!", countRunningReloadTasks());
}
}
private static class UncaughtException extends Exception {
public UncaughtException(Throwable cause) {
super(cause);
}
}
}
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