Resource Manager

Major resource manager changes.  Things now properly lazy load.  There code for deferred loading, but its not currently active
This commit is contained in:
Marc Hernandez 2019-07-04 06:17:37 -07:00
parent d9a6e8215c
commit 98db61a4a5
7 changed files with 374 additions and 173 deletions

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@ -17,29 +17,6 @@ public class DescAttribute : Attribute
}
[Serializable]
public class ResRefConfig<T> : res.Ref<T> where T: Config
{
public ResRefConfig()
{
}
public ResRefConfig( string filename, T cfg )
: base( filename, cfg )
{
}
override public void OnDeserialize( object enclosing )
{
base.OnDeserialize( enclosing );
var cfg = Config.load<T>( filename );
res = cfg;
}
}
[Serializable]
public class Config
{
@ -52,20 +29,22 @@ public class Config
static public void startup()
{
res.Mgr.register<Config>( res_load );
res.Mgr.registerSub<Config>( res_load );
res.Mgr.register<Config>( load );
res.Mgr.registerSub(typeof(Config));
}
#region SaveLoad
static public ResRefConfig<Config> res_load( string filename )
/*
static public res.Ref<Config> res_load( string filename )
{
return new ResRefConfig<Config>( filename, load( filename ) );
return new res.Ref<Config>( filename, load( filename ) );
}
*/
static public ResRefConfig<T> res_load<T>( string filename ) where T : Config
static public T res_load<T>( string filename ) where T : Config
{
return new ResRefConfig<T>( filename, load<T>( filename ) );
return load<T>( filename );
}
/*

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@ -20,7 +20,7 @@ public interface IProcess
public class Conn
public class Conn
{
public Socket Sock { get { return m_socket; } }
public Stream Stream { get { return m_streamNet; } }

15
Imm.cs Normal file
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@ -0,0 +1,15 @@
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
// A spot for immutable helpers
public static class imm
{
}

32
Log.cs
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@ -90,7 +90,7 @@ namespace lib
s_log = null;
}
static private Log s_log;
static public Log s_log;
/*
static public Log log
@ -103,37 +103,37 @@ namespace lib
*/
// Forwards.
static public void fatal( string msg, string cat = "unknown", object obj = null )
static public void fatal( string msg, string cat = "unk", object obj = null )
{
log(msg, LogType.Fatal, cat, obj);
}
static public void error( string msg, string cat = "unknown", object obj = null )
static public void error( string msg, string cat = "unk", object obj = null )
{
log(msg, LogType.Error, cat, obj);
}
static public void warn( string msg, string cat = "unknown", object obj = null )
static public void warn( string msg, string cat = "unk", object obj = null )
{
log( msg, LogType.Warn, cat, obj );
}
static public void info( string msg, string cat = "unknown", object obj = null )
static public void info( string msg, string cat = "unk", object obj = null )
{
log(msg, LogType.Info, cat, obj);
}
static public void debug( string msg, string cat = "unknown", object obj = null )
static public void debug( string msg, string cat = "unk", object obj = null )
{
log(msg, LogType.Debug, cat, obj);
}
static public void trace( string msg, string cat = "unknown", object obj = null )
static public void trace( string msg, string cat = "unk", object obj = null )
{
log(msg, LogType.Trace, cat, obj);
}
static public void log( string msg, LogType type = LogType.Debug, string cat = "unknown", object obj = null )
static public void log( string msg, LogType type = LogType.Debug, string cat = "unk", object obj = null )
{
lock(s_log)
{
@ -143,6 +143,22 @@ namespace lib
}
}
//This might seem a little odd, but the intent is that usually you wont need to set notExpectedValue.
static public void expected<T>( T value, string falseString, string trueString = "", T notExpectedValue = default(T) )
{
var name = nameof(value);
if( !value.Equals( notExpectedValue ) )
{
lib.Log.info( $"Properly got {value}{trueString}" );
}
else
{
lib.Log.warn( $"Got {notExpectedValue} instead of {value}{falseString}" );
}
}
private Log( string filename )
{

View File

@ -44,6 +44,9 @@
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Collections.Immutable, Version=1.2.4.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
<HintPath>..\..\packages\System.Collections.Immutable.1.6.0-preview3.19128.7\lib\netstandard2.0\System.Collections.Immutable.dll</HintPath>
</Reference>
<Reference Include="System.Core">
<RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>
@ -67,6 +70,7 @@
<Compile Include="Clock.cs" />
<Compile Include="Config.cs" />
<Compile Include="Helpers.cs" />
<Compile Include="Imm.cs" />
<Compile Include="Log.cs" />
<Compile Include="math\AngleSingle.cs" />
<Compile Include="math\AngleType.cs" />
@ -131,6 +135,9 @@
<Compile Include="XmlFormatter.cs" />
<Compile Include="XmlFormatter2.cs" />
</ItemGroup>
<ItemGroup>
<None Include="packages.config" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.

4
packages.config Normal file
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@ -0,0 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="System.Collections.Immutable" version="1.6.0-preview3.19128.7" targetFramework="net462" />
</packages>

View File

@ -5,169 +5,349 @@ using System.Text;
//using System.Threading.Tasks;
using System.Diagnostics;
using System.Reflection;
using System.Collections.Immutable;
using System.Threading;
namespace res
{
[Serializable]
public class Ref : lib.I_Serialize
{
public string filename { get { return m_filename; } }
using ImmDefLoad = ImmutableQueue<(string name, Ref)>;
//For construction
public Ref()
[Serializable]
public class Ref : lib.I_Serialize
{
}
public string filename { get { return m_filename; } }
public Ref( string filename )
{
m_filename = filename;
}
virtual public void OnSerialize()
{
}
virtual public void OnDeserialize( object enclosing )
{
}
virtual public void OnChange()
{
}
private string m_filename;
}
[Serializable]
public class Ref<T> : Ref
{
public T res{ get{ return m_res; } set{ m_res = value; } }
//For construction
public Ref()
{
}
public Ref( string filename )
: base( filename )
{
}
public Ref( string filename, T res ) : base( filename )
{
m_res = res;
}
[NonSerialized]
private T m_res;
}
public class Resource
{
static public Mgr mgr;
}
/*
public class Loader<T>
{
static public T load( string filename )
{
Debug.Assert( false, "Specialize Loader for your type for file" );
return default(T);
}
}
*/
public delegate Ref Load( string filename );
public delegate Ref LoadType( string filename, Type t );
public class Mgr
{
static public void startup()
{
Resource.mgr = new Mgr();
}
static public void register<T>( Load loader )
{
Debug.Assert( !Resource.mgr.m_loaders.ContainsKey( typeof( T ) ) );
Resource.mgr.m_loaders[ typeof( T ) ] = loader;
}
//Register all subclasses of a particular type
static public void registerSub<T>( Load loaderOfType )
{
Type[] typeParams = new Type[1];
foreach( var mi in typeof( T ).GetMethods() )
//For construction
public Ref()
{
if( mi.Name == "res_load" && mi.IsGenericMethod )
}
public Ref( string filename )
{
m_filename = filename;
}
virtual public void OnSerialize()
{
}
virtual public void OnDeserialize( object enclosing )
{
}
virtual public void OnChange()
{
}
virtual internal void load()
{
}
private string m_filename;
}
[Serializable]
public class Ref<T> : Ref where T : class
{
public T res => m_res != null ? m_res : m_res = Mgr.load<T>( filename );
//For serialization
public Ref()
{
}
public Ref( string filename )
:
base( filename )
{
}
public Ref( string filename, T res ) : base( filename )
{
m_res = res;
}
override internal void load()
{
m_res = Mgr.load<T>( filename );
}
[NonSerialized]
private T m_res;
}
public class Resource
{
static public Mgr mgr;
}
/*
public class Loader<T>
{
static public T load( string filename )
{
Debug.Assert( false, "Specialize Loader for your type for file" );
return default(T);
}
}
*/
public delegate T Load<out T>( string filename );
class LoadHolder
{
internal virtual object load()
{
return null;
}
}
class LoadHolder<T> : LoadHolder
{
public LoadHolder( Load<T> _dlgtLoad )
{
dlgtLoad = _dlgtLoad;
}
public Load<T> dlgtLoad;
internal override object load()
{
return load();
}
}
//generic classes make a new static per generic type
class ResCache<T> where T : class
{
public static T s_default = default;
public static ImmutableDictionary<string, WeakReference<T>> s_cache = ImmutableDictionary<string, WeakReference<T>>.Empty;
}
public class Mgr
{
static public void startup()
{
Resource.mgr = new Mgr();
}
static public void register<T>( Load<T> loader )
{
Debug.Assert( !Resource.mgr.m_loaders.ContainsKey( typeof( T ) ) );
var lh = new LoadHolder<T>( loader );
ImmutableInterlocked.TryAdd( ref Resource.mgr.m_loaders, typeof(T), lh );
}
//Register all subclasses of a particular type
//???? Should we just always do this?
static public void registerSub( Type baseType )
{
Type[] typeParams = new Type[1];
foreach( var mi in baseType.GetMethods() )
{
foreach( var ass in AppDomain.CurrentDomain.GetAssemblies() )
if( mi.Name == "res_load" && mi.IsGenericMethod )
{
foreach( var t in ass.GetTypes() )
foreach( var ass in AppDomain.CurrentDomain.GetAssemblies() )
{
if( t.IsSubclassOf( typeof( T ) ) )
foreach( var t in ass.GetTypes() )
{
typeParams[0] = t;
var mi_ng = mi.MakeGenericMethod( typeParams );
Resource.mgr.m_loaders[ t ] = (Load)Delegate.CreateDelegate( typeof(Load), mi_ng );
if( t.IsSubclassOf( baseType ) )
{
typeParams[0] = t;
var mi_ng = mi.MakeGenericMethod( typeParams );
var loadGenType = typeof(Load<>);
var loadType = loadGenType.MakeGenericType( t );
var loader = Delegate.CreateDelegate( loadType, mi_ng );
var lhGenType = typeof(LoadHolder<>);
var lhType = lhGenType.MakeGenericType( t );
var lh = Activator.CreateInstance( lhType, loader ) as LoadHolder;
ImmutableInterlocked.TryAdd( ref Resource.mgr.m_loaders, t, lh );
}
}
}
return;
}
return;
}
}
}
static public Ref<T> load<T>( string filename ) where T : class
{
Load loader;
Resource.mgr.m_loaders.TryGetValue( typeof( T ), out loader );
if( loader != null )
static public Ref<T> lookup<T>( string filename ) where T : class
{
var rf_raw = loader( filename );
Ref<T> rf = rf_raw as Ref<T>;
return rf;
/*
LoadHolder loader_gen;
Resource.mgr.m_loaders.TryGetValue( typeof( T ), out loader_gen );
var loaderHolder = loader_gen as LoadHolder<T>;
if( loaderHolder != null )
{
var rf_raw = loaderHolder.dlgtLoad( filename );
Ref<T> rf = rf_raw as Ref<T>;
return rf;
}
*/
return new Ref<T>( filename );
}
return new Ref<T>( filename );
}
static public Ref load( string filename, Type t )
{
Load loader;
Resource.mgr.m_loaders.TryGetValue( t, out loader );
if( loader != null )
//*
static public Ref lookup( string filename, Type t )
{
var rf_raw = loader( filename );
return rf_raw;
/*
LoadHolder loader_gen;
Resource.mgr.m_loaders.TryGetValue( t, out loader_gen );
var lhGenType = typeof(LoadHolder<>);
if( loaderHolder != null )
{
var rf_raw = loaderHolder.load( filename );
return rf_raw;
}
*/
return new Ref( filename );
}
//*/
static public T load<T>( string filename ) where T : class
{
if( ResCache<T>.s_cache.TryGetValue( filename, out var wr ) )
{
if( wr.TryGetTarget(out var v) ) return v;
lib.Log.info( $"{filename} was in cache, but its been dropped, reloading." );
}
lib.Log.warn( $"Block Loading {filename}." );
var newV = actualLoad<T>( filename );
return newV;
}
return new Ref<object>( filename );
}
static public T actualLoad<T>( string filename ) where T : class
{
if( s_loading.TryGetValue( filename, out var evt ) )
{
evt.WaitOne();
private Mgr()
{
if( ResCache<T>.s_cache.TryGetValue( filename, out var wr ) )
{
if( wr.TryGetTarget( out var v ) )
return v;
lib.Log.error( $"{filename} was in cache, but its been dropped, reloading." );
}
}
var evtNew = new AutoResetEvent( false );
if( ImmutableInterlocked.TryAdd( ref s_loading, filename, evtNew ) )
{
if( Resource.mgr.m_loaders.TryGetValue( typeof(T), out var loaderGen ) )
{
var loader = loaderGen as LoadHolder<T>;
var v = loader.dlgtLoad( filename );
var weak = new WeakReference<T>( v );
var alreadyAdded = !ImmutableInterlocked.TryAdd( ref ResCache<T>.s_cache, filename, weak );
evtNew.Set();
//Done loading
if( !ImmutableInterlocked.TryRemove( ref s_loading, filename, out var oldEvt ) )
{
lib.Log.error( $"Error removing loading event for {filename}" );
}
if( alreadyAdded )
{
lib.Log.error( $"Key {filename} already existed, though it shouldnt." );
}
return v;
}
else
{
lib.Log.error( $"Loader could not be found for type {typeof(T)}" );
return ResCache<T>.s_default;
}
}
return actualLoad<T>( filename );
}
static object s_loadingLock = new object();
static ImmutableDictionary< string, AutoResetEvent > s_loading = ImmutableDictionary< string, AutoResetEvent >.Empty;
static ImmDefLoad s_deferredLoad = ImmDefLoad.Empty;
Mgr()
{
var ts = new ThreadStart( deferredLoader );
m_deferredLoader = new Thread( ts );
m_deferredLoader.Start();
}
void deferredLoader()
{
while( true )
{
Thread.Sleep( 1 );
if( ImmutableInterlocked.TryDequeue( ref s_deferredLoad, out var v ) )
{
v.Item2.load();
}
}
}
ImmutableDictionary<Type, LoadHolder> m_loaders = ImmutableDictionary<Type, LoadHolder>.Empty;
Thread m_deferredLoader;
}
private Dictionary<Type, Load> m_loaders = new Dictionary<Type, Load>();
//private Dictionary<Type, LoadType> m_loadersOfType = new Dictionary<Type, LoadType>();
}