6880e5e9ee
Details: - Assembly Mgmt Service for loading now a separate interface, not intended for normal use. - Assembly Loader work; implemented custom dictionary key and table. - Assembly loading work. - EventService completed. - Moved assembly extensions to ModUtils.cs - Work to event service. NetworkService work - Added ImpromptuInterfaces package. - Networking Service work to support NetVars - Event Service - Added assemblies references package for script compilation. Updated Roslyn version for compatibility. - Package Loading work. Swap Harmony to HarmonyX - More refactor conversion to FluentResults. - Updated StylesService to return Results. - Refactor of PackageService partially complete. - Made IService.Reset() required to return a Result. - Moved plugin/assembly related code to their own folder (same namespace). - Updated interfaces to reflect the use of Result<T>. - Partial refactor, incomplete. - Added 'FluentResults' so we can stop using cursed Exception-based flow control in loading code. - Added 'OneOf' nuget package: https://github.com/mcintyre321/OneOf for the implementation of the Optional<T> pattern and complex discrete return types instead of cursed enums (see current AssemblyManager.cs). - Reapplied old branch changes.
760 lines
24 KiB
C#
760 lines
24 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Collections.Immutable;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.Loader;
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using System.Threading;
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using FluentResults;
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using FluentResults.LuaCs;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp;
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// ReSharper disable EventNeverSubscribedTo.Global
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// ReSharper disable InconsistentNaming
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namespace Barotrauma.LuaCs.Services;
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/***
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* Note: This class was written to be thread-safe in order to allow parallelization in loading in the future if the need
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* becomes necessary as there is almost no serial performance overhead for adding threading protection.
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*/
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/// <summary>
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/// Provides functionality for the loading, unloading and management of plugins implementing IAssemblyPlugin.
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/// All plugins are loaded into their own AssemblyLoadContext along with their dependencies.
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/// </summary>
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[Obsolete]
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public class AssemblyManager : IAssemblyManagementService, IPluginManagementService
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{
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#region ExternalAPI
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public event Action<Assembly> OnAssemblyLoaded;
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public event Action<Assembly> OnAssemblyUnloading;
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public event Action<string, Exception> OnException;
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public event Action<Guid> OnACLUnload;
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public ImmutableList<WeakReference<MemoryFileAssemblyContextLoader>> StillUnloadingACLs
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{
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get
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{
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OpsLockUnloaded.EnterReadLock();
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try
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{
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return UnloadingACLs.ToImmutableList();
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}
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finally
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{
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OpsLockUnloaded.ExitReadLock();
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}
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}
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}
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public bool IsCurrentlyUnloading
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{
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get
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{
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OpsLockUnloaded.EnterReadLock();
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try
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{
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return UnloadingACLs.Any();
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}
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catch (Exception)
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{
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return false;
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}
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finally
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{
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OpsLockUnloaded.ExitReadLock();
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}
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}
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}
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public IEnumerable<Type> GetSubTypesInLoadedAssemblies<T>(bool rebuildList)
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{
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Type targetType = typeof(T);
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string typeName = targetType.FullName ?? targetType.Name;
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// rebuild
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if (rebuildList)
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RebuildTypesList();
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// check cache
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if (_subTypesLookupCache.TryGetValue(typeName, out var subTypeList))
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{
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return subTypeList;
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}
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// build from scratch
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OpsLockLoaded.EnterReadLock();
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try
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{
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// build list
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var list1 = _defaultContextTypes
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.Where(kvp1 => targetType.IsAssignableFrom(kvp1.Value) && !kvp1.Value.IsInterface)
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.Concat(LoadedACLs
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.SelectMany(kvp => kvp.Value.AssembliesTypes)
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.Where(kvp2 => targetType.IsAssignableFrom(kvp2.Value) && !kvp2.Value.IsInterface))
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.Select(kvp3 => kvp3.Value)
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.ToImmutableList();
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// only add if we find something
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if (list1.Count > 0)
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{
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if (!_subTypesLookupCache.TryAdd(typeName, list1))
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{
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ModUtils.Logging.PrintError(
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$"{nameof(AssemblyManager)}: Unable to add subtypes to cache of type {typeName}!");
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}
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}
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else
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{
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ModUtils.Logging.PrintMessage(
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$"{nameof(AssemblyManager)}: Warning: No types found during search for subtypes of {typeName}");
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}
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return list1;
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}
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catch (Exception e)
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{
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this.OnException?.Invoke($"{nameof(AssemblyManager)}::{nameof(GetSubTypesInLoadedAssemblies)}() | Error: {e.Message}", e);
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return ImmutableList<Type>.Empty;
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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}
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public bool TryGetSubTypesFromACL<T>(Guid id, out IEnumerable<Type> types)
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{
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Type targetType = typeof(T);
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if (TryGetACL(id, out var acl))
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{
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types = acl.AssembliesTypes
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.Where(kvp => targetType.IsAssignableFrom(kvp.Value) && !kvp.Value.IsInterface)
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.Select(kvp => kvp.Value);
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return true;
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}
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types = null;
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return false;
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}
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public bool TryGetSubTypesFromACL(Guid id, out IEnumerable<Type> types)
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{
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if (TryGetACL(id, out var acl))
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{
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types = acl.AssembliesTypes.Select(kvp => kvp.Value);
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return true;
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}
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types = null;
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return false;
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}
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public IEnumerable<Type> GetTypesByName(string typeName)
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{
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List<Type> types = new();
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if (typeName.IsNullOrWhiteSpace())
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return types;
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bool byRef = false;
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if (typeName.StartsWith("out ") || typeName.StartsWith("ref "))
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{
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typeName = typeName.Remove(0, 4);
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byRef = true;
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}
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TypesListHelper();
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if (types.Count > 0)
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return types;
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// we couldn't find it, rebuild and try one more time
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RebuildTypesList();
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TypesListHelper();
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if (types.Count > 0)
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return types;
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OpsLockLoaded.EnterReadLock();
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try
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{
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// fallback to Type.GetType
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Type t = Type.GetType(typeName, false, false);
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if (t is not null)
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{
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types.Add(byRef ? t.MakeByRefType() : t);
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return types;
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}
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foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
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{
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try
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{
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t = assembly.GetType(typeName, false, false);
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if (t is not null)
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types.Add(byRef ? t.MakeByRefType() : t);
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}
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catch (Exception e)
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{
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this.OnException?.Invoke(
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$"{nameof(AssemblyManager)}::{nameof(GetTypesByName)}() | Error: {e.Message}", e);
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}
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}
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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return types;
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void TypesListHelper()
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{
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if (_defaultContextTypes.TryGetValue(typeName, out var type1))
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{
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if (type1 is not null)
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types.Add(byRef ? type1.MakeByRefType() : type1);
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}
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OpsLockLoaded.EnterReadLock();
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try
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{
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foreach (KeyValuePair<Guid,LoadedACL> loadedAcl in LoadedACLs)
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{
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var at = loadedAcl.Value.AssembliesTypes;
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if (at.TryGetValue(typeName, out var type2))
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{
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if (type2 is not null)
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types.Add(byRef ? type2.MakeByRefType() : type2);
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}
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}
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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}
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}
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public IEnumerable<Type> GetAllTypesInLoadedAssemblies()
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{
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OpsLockLoaded.EnterReadLock();
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try
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{
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return _defaultContextTypes
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.Select(kvp => kvp.Value)
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.Concat(LoadedACLs
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.SelectMany(kvp => kvp.Value?.AssembliesTypes.Select(kv => kv.Value)))
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.ToImmutableList();
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}
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catch
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{
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return ImmutableList<Type>.Empty;
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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}
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public IEnumerable<LoadedACL> GetAllLoadedACLs()
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{
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OpsLockLoaded.EnterReadLock();
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try
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{
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if (!LoadedACLs.Any())
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{
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return ImmutableList<LoadedACL>.Empty;
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}
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return LoadedACLs.Select(kvp => kvp.Value).ToImmutableList();
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}
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catch
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{
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return ImmutableList<LoadedACL>.Empty;
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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}
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public bool IsAssemblyLoadedGlobal(string friendlyName)
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{
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throw new NotImplementedException();
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}
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#endregion
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#region InternalAPI
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[MethodImpl(MethodImplOptions.Synchronized | MethodImplOptions.NoInlining)]
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ImmutableList<LoadedACL> IAssemblyManagementService.UnsafeGetAllLoadedACLs()
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{
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if (LoadedACLs.IsEmpty)
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return ImmutableList<LoadedACL>.Empty;
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return LoadedACLs.Select(kvp => kvp.Value).ToImmutableList();
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}
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public event System.Func<LoadedACL, bool> IsReadyToUnloadACL;
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public AssemblyLoadingSuccessState LoadAssemblyFromMemory([NotNull] string compiledAssemblyName,
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[NotNull] IEnumerable<SyntaxTree> syntaxTree,
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IEnumerable<MetadataReference> externalMetadataReferences,
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[NotNull] CSharpCompilationOptions compilationOptions,
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string friendlyName,
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ref Guid id,
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IEnumerable<Assembly> externFileAssemblyRefs = null)
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{
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// validation
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if (compiledAssemblyName.IsNullOrWhiteSpace())
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return AssemblyLoadingSuccessState.BadName;
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if (syntaxTree is null)
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return AssemblyLoadingSuccessState.InvalidAssembly;
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if (!GetOrCreateACL(id, friendlyName, out var acl))
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return AssemblyLoadingSuccessState.ACLLoadFailure;
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id = acl.Id; // pass on true id returned
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// this acl is already hosting an in-memory assembly
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if (acl.Acl.CompiledAssembly is not null)
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return AssemblyLoadingSuccessState.AlreadyLoaded;
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// compile
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AssemblyLoadingSuccessState state;
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string messages;
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try
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{
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state = acl.Acl.CompileAndLoadScriptAssembly(compiledAssemblyName, syntaxTree, externalMetadataReferences,
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compilationOptions, out messages, externFileAssemblyRefs);
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}
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catch (Exception e)
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{
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ModUtils.Logging.PrintError($"{nameof(AssemblyManager)}::{nameof(LoadAssemblyFromMemory)}() | Failed to compile and load assemblies for [ {compiledAssemblyName} / {friendlyName} ]! Details: {e.Message} | {e.StackTrace}");
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return AssemblyLoadingSuccessState.InvalidAssembly;
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}
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// get types
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if (state is AssemblyLoadingSuccessState.Success)
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{
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_subTypesLookupCache.Clear();
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acl.RebuildTypesList();
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OnAssemblyLoaded?.Invoke(acl.Acl.CompiledAssembly);
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}
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else
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{
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ModUtils.Logging.PrintError($"Unable to compile assembly '{compiledAssemblyName}' due to errors: {messages}");
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}
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return state;
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}
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public bool SetACLToTemplateMode(Guid guid)
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{
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if (!TryGetACL(guid, out var acl))
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return false;
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acl.Acl.IsTemplateMode = true;
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return true;
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}
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public AssemblyLoadingSuccessState LoadAssembliesFromLocations([NotNull] IEnumerable<string> filePaths,
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string friendlyName, ref Guid id)
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{
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if (filePaths is null)
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{
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var exception = new ArgumentNullException(
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$"{nameof(AssemblyManager)}::{nameof(LoadAssembliesFromLocations)}() | file paths supplied is null!");
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this.OnException?.Invoke($"Error: {exception.Message}", exception);
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throw exception;
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}
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ImmutableList<string> assemblyFilePaths = filePaths.ToImmutableList(); // copy the list before loading
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if (!assemblyFilePaths.Any())
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{
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return AssemblyLoadingSuccessState.NoAssemblyFound;
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}
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if (GetOrCreateACL(id, friendlyName, out var loadedAcl))
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{
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var state = loadedAcl.Acl.LoadFromFiles(assemblyFilePaths);
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// if failure, we dispose of the acl
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if (state != AssemblyLoadingSuccessState.Success)
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{
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DisposeACL(loadedAcl.Id);
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ModUtils.Logging.PrintError($"ACL {friendlyName} failed, unloading...");
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return state;
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}
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// build types list
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_subTypesLookupCache.Clear();
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loadedAcl.RebuildTypesList();
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id = loadedAcl.Id;
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foreach (Assembly assembly in loadedAcl.Acl.Assemblies)
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{
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OnAssemblyLoaded?.Invoke(assembly);
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}
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return state;
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}
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return AssemblyLoadingSuccessState.ACLLoadFailure;
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public bool TryBeginDispose()
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{
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OpsLockLoaded.EnterWriteLock();
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OpsLockUnloaded.EnterWriteLock();
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try
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{
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_subTypesLookupCache.Clear();
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_defaultContextTypes = _defaultContextTypes.Clear();
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foreach (KeyValuePair<Guid, LoadedACL> loadedAcl in LoadedACLs)
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{
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if (loadedAcl.Value.Acl is not null)
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{
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if (IsReadyToUnloadACL is not null)
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{
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foreach (Delegate del in IsReadyToUnloadACL.GetInvocationList())
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{
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if (del is System.Func<LoadedACL, bool> { } func)
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{
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if (!func.Invoke(loadedAcl.Value))
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return false; // Not ready, exit
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}
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}
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}
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foreach (Assembly assembly in loadedAcl.Value.Acl.Assemblies)
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{
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OnAssemblyUnloading?.Invoke(assembly);
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}
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UnloadingACLs.Add(new WeakReference<MemoryFileAssemblyContextLoader>(loadedAcl.Value.Acl, true));
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loadedAcl.Value.ClearTypesList();
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loadedAcl.Value.Acl.Unload();
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loadedAcl.Value.ClearACLRef();
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OnACLUnload?.Invoke(loadedAcl.Value.Id);
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}
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}
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LoadedACLs.Clear();
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return true;
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}
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catch(Exception e)
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{
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// should never happen
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this.OnException?.Invoke($"{nameof(TryBeginDispose)}() | Error: {e.Message}", e);
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return false;
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}
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finally
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{
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OpsLockUnloaded.ExitWriteLock();
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OpsLockLoaded.ExitWriteLock();
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}
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public bool FinalizeDispose()
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{
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bool isUnloaded;
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OpsLockUnloaded.EnterUpgradeableReadLock();
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try
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{
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GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced); // force the gc to collect unloaded acls.
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List<WeakReference<MemoryFileAssemblyContextLoader>> toRemove = new();
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foreach (WeakReference<MemoryFileAssemblyContextLoader> weakReference in UnloadingACLs)
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{
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if (!weakReference.TryGetTarget(out _))
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{
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toRemove.Add(weakReference);
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}
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}
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if (toRemove.Any())
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{
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OpsLockUnloaded.EnterWriteLock();
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try
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{
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foreach (WeakReference<MemoryFileAssemblyContextLoader> reference in toRemove)
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{
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UnloadingACLs.Remove(reference);
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}
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}
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finally
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{
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OpsLockUnloaded.ExitWriteLock();
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}
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}
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isUnloaded = !UnloadingACLs.Any();
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}
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finally
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{
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OpsLockUnloaded.ExitUpgradeableReadLock();
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}
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return isUnloaded;
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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public bool TryGetACL(Guid id, out LoadedACL acl)
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{
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acl = null;
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OpsLockLoaded.EnterReadLock();
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try
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{
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if (id.Equals(Guid.Empty) || !LoadedACLs.ContainsKey(id))
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return false;
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acl = LoadedACLs[id];
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return true;
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}
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finally
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{
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OpsLockLoaded.ExitReadLock();
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}
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}
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|
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/// <summary>
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/// Gets or creates an AssemblyCtxLoader for the given ID. Creates if the ID is empty or no ACL can be found.
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/// [IMPORTANT] After calling this method, the id you use should be taken from the acl container (acl.Id).
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/// </summary>
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/// <param name="id"></param>
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/// <param name="friendlyName">A non-unique name for later reference. Optional.</param>
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/// <param name="acl"></param>
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/// <returns>Should only return false if an error occurs.</returns>
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[MethodImpl(MethodImplOptions.NoInlining)]
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private bool GetOrCreateACL(Guid id, string friendlyName, out LoadedACL acl)
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{
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OpsLockLoaded.EnterUpgradeableReadLock();
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try
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{
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if (id.Equals(Guid.Empty) || !LoadedACLs.ContainsKey(id) || LoadedACLs[id] is null)
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{
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OpsLockLoaded.EnterWriteLock();
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try
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{
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id = Guid.NewGuid();
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acl = new LoadedACL(id, this, friendlyName);
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LoadedACLs[id] = acl;
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return true;
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}
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finally
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{
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OpsLockLoaded.ExitWriteLock();
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}
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}
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else
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{
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acl = LoadedACLs[id];
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return true;
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}
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}
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catch(Exception e)
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{
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this.OnException?.Invoke($"{nameof(GetOrCreateACL)}Error: {e.Message}", e);
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acl = null;
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return false;
|
|
}
|
|
finally
|
|
{
|
|
OpsLockLoaded.ExitUpgradeableReadLock();
|
|
}
|
|
}
|
|
|
|
|
|
[MethodImpl(MethodImplOptions.NoInlining)]
|
|
private bool DisposeACL(Guid id)
|
|
{
|
|
OpsLockLoaded.EnterWriteLock();
|
|
OpsLockUnloaded.EnterWriteLock();
|
|
try
|
|
{
|
|
if (LoadedACLs.ContainsKey(id) && LoadedACLs[id] == null)
|
|
{
|
|
if (!LoadedACLs.TryRemove(id, out _))
|
|
{
|
|
ModUtils.Logging.PrintWarning($"An ACL with the GUID {id.ToString()} was found as null. Unable to remove null ACL entry.");
|
|
}
|
|
}
|
|
|
|
if (id.Equals(Guid.Empty) || !LoadedACLs.ContainsKey(id))
|
|
{
|
|
return false; // nothing to dispose of
|
|
}
|
|
|
|
var acl = LoadedACLs[id];
|
|
|
|
foreach (Assembly assembly in acl.Acl.Assemblies)
|
|
{
|
|
OnAssemblyUnloading?.Invoke(assembly);
|
|
}
|
|
|
|
_subTypesLookupCache.Clear();
|
|
UnloadingACLs.Add(new WeakReference<MemoryFileAssemblyContextLoader>(acl.Acl, true));
|
|
acl.Acl.Unload();
|
|
acl.ClearACLRef();
|
|
OnACLUnload?.Invoke(acl.Id);
|
|
|
|
return true;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
this.OnException?.Invoke($"{nameof(DisposeACL)}() | Error: {e.Message}", e);
|
|
return false;
|
|
}
|
|
finally
|
|
{
|
|
OpsLockLoaded.ExitWriteLock();
|
|
OpsLockUnloaded.ExitWriteLock();
|
|
}
|
|
}
|
|
|
|
internal AssemblyManager()
|
|
{
|
|
RebuildTypesList();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Rebuilds the list of types in the default assembly load context.
|
|
/// </summary>
|
|
private void RebuildTypesList()
|
|
{
|
|
try
|
|
{
|
|
_defaultContextTypes = AssemblyLoadContext.Default.Assemblies
|
|
.SelectMany(a => a.GetSafeTypes())
|
|
.ToImmutableDictionary(t => t.FullName ?? t.Name, t => t);
|
|
_subTypesLookupCache.Clear();
|
|
}
|
|
catch(ArgumentException ae)
|
|
{
|
|
this.OnException?.Invoke($"{nameof(RebuildTypesList)}() | Error: {ae.Message}", ae);
|
|
try
|
|
{
|
|
// some types must've had duplicate type names, build the list while filtering
|
|
Dictionary<string, Type> types = new();
|
|
foreach (var type in AssemblyLoadContext.Default.Assemblies.SelectMany(a => a.GetSafeTypes()))
|
|
{
|
|
try
|
|
{
|
|
types.TryAdd(type.FullName ?? type.Name, type);
|
|
}
|
|
catch
|
|
{
|
|
// ignore, null key exception
|
|
}
|
|
}
|
|
|
|
_defaultContextTypes = types.ToImmutableDictionary();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
this.OnException?.Invoke($"{nameof(RebuildTypesList)}() | Error: {e.Message}", e);
|
|
ModUtils.Logging.PrintError($"{nameof(AssemblyManager)}: Unable to create list of default assembly types! Default AssemblyLoadContext types searching not available.");
|
|
#if DEBUG
|
|
ModUtils.Logging.PrintError($"{nameof(AssemblyManager)}: Exception Details :{e.Message} | {e.InnerException}");
|
|
#endif
|
|
_defaultContextTypes = ImmutableDictionary<string, Type>.Empty;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Data
|
|
|
|
private readonly ConcurrentDictionary<string, ImmutableList<Type>> _subTypesLookupCache = new();
|
|
private ImmutableDictionary<string, Type> _defaultContextTypes;
|
|
private readonly ConcurrentDictionary<Guid, LoadedACL> LoadedACLs = new();
|
|
private readonly List<WeakReference<MemoryFileAssemblyContextLoader>> UnloadingACLs= new();
|
|
private readonly ReaderWriterLockSlim OpsLockLoaded = new ();
|
|
private readonly ReaderWriterLockSlim OpsLockUnloaded = new ();
|
|
|
|
#endregion
|
|
|
|
#region TypeDefs
|
|
|
|
|
|
public sealed class LoadedACL
|
|
{
|
|
public readonly Guid Id;
|
|
private ImmutableDictionary<string, Type> _assembliesTypes = ImmutableDictionary<string, Type>.Empty;
|
|
public MemoryFileAssemblyContextLoader Acl { get; private set; }
|
|
|
|
internal LoadedACL(Guid id, AssemblyManager manager, string friendlyName)
|
|
{
|
|
this.Id = id;
|
|
this.Acl = new(manager)
|
|
{
|
|
FriendlyName = friendlyName
|
|
};
|
|
}
|
|
public ref readonly ImmutableDictionary<string, Type> AssembliesTypes => ref _assembliesTypes;
|
|
|
|
/// <summary>
|
|
/// Warning: For use by the Assembly Manager only! Do not call this method otherwise.
|
|
/// </summary>
|
|
internal void ClearACLRef()
|
|
{
|
|
Acl = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Rebuild the list of types from assemblies loaded in the AsmCtxLoader.
|
|
/// </summary>
|
|
internal void RebuildTypesList()
|
|
{
|
|
if (this.Acl is null)
|
|
{
|
|
ModUtils.Logging.PrintWarning($"{nameof(RebuildTypesList)}() | ACL with GUID {Id.ToString()} is null, cannot rebuild.");
|
|
return;
|
|
}
|
|
|
|
ClearTypesList();
|
|
try
|
|
{
|
|
_assembliesTypes = this.Acl.Assemblies
|
|
.SelectMany(a => a.GetSafeTypes())
|
|
.ToImmutableDictionary(t => t.FullName ?? t.Name, t => t);
|
|
}
|
|
catch(ArgumentException)
|
|
{
|
|
// some types must've had duplicate type names, build the list while filtering
|
|
Dictionary<string, Type> types = new();
|
|
foreach (var type in this.Acl.Assemblies.SelectMany(a => a.GetSafeTypes()))
|
|
{
|
|
try
|
|
{
|
|
types.TryAdd(type.FullName ?? type.Name, type);
|
|
}
|
|
catch
|
|
{
|
|
// ignore, null key exception
|
|
}
|
|
}
|
|
|
|
_assembliesTypes = types.ToImmutableDictionary();
|
|
}
|
|
}
|
|
|
|
internal void ClearTypesList()
|
|
{
|
|
_assembliesTypes = ImmutableDictionary<string, Type>.Empty;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
public void Dispose()
|
|
{
|
|
TryBeginDispose();
|
|
}
|
|
|
|
public FluentResults.Result Reset()
|
|
{
|
|
return TryBeginDispose() ? FluentResults.Result.Ok()
|
|
: FluentResults.Result.Fail(new Error($"{nameof(AssemblyManager)}: failed to Reset service.")
|
|
.WithMetadata(MetadataType.ExceptionObject, this));
|
|
}
|
|
}
|
|
|
|
|