Daily update on 20250316-095544 by Nitload Youmu. Additional Message : Linear math inmprovement
Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
This commit is contained in:
Nitload
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="TimeSpanProvider.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Threading;
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namespace StgSharp.Timing
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{
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/// <summary>
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/// A microsecond-accuracy timer. It will refresh every a certain time span.
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/// </summary>
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public class TimeSpanProvider
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{
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private bool _subscribed;
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private ConcurrentQueue<TimeSpanAwaitingToken> _tokenToAdd = new ConcurrentQueue<TimeSpanAwaitingToken>(
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);
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private ConcurrentQueue<TimeSpanAwaitingToken> _tokenToQuit;
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private Counter<int> timeSpanCount = new Counter<int>( -1, 1, 1 );
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private HashSet<TimeSpanAwaitingToken> _awaitingTokens;
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private long _maxSpanCount;
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private long _spanBegin;
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private readonly long _spanLength;
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private readonly TimeSourceProviderBase _timeSource;
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/// <summary>
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/// Create a new <see cref="TimeSpanProvider" /> and define the length of time span. Length
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/// of a single time span is defined in microseconds.
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/// </summary>
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/// <param _name="spanMicroSeconds"></param>
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/// <param _name="provider"></param>
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public TimeSpanProvider(
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long spanMicroSeconds,
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TimeSourceProviderBase provider )
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{
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if( provider == null ) {
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throw new ArgumentNullException( nameof( provider ) );
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}
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_timeSource = provider;
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_spanLength = spanMicroSeconds;
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_maxSpanCount = int.MaxValue;
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provider.AddSubscriber( this );
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_subscribed = true;
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_awaitingTokens = new HashSet<TimeSpanAwaitingToken>();
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_tokenToQuit = new ConcurrentQueue<TimeSpanAwaitingToken>();
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}
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/// <summary>
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/// Create a new <see cref="TimeSpanProvider" /> and define the length of time span. Length
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/// of a single time span is defined in seconds.
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/// </summary>
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/// <param _name="spanSeconds"></param>
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/// <param _name="provider"></param>
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public TimeSpanProvider(
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double spanSeconds,
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TimeSourceProviderBase provider )
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{
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if( provider == null ) {
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throw new ArgumentNullException( nameof( provider ) );
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}
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_timeSource = provider;
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_spanLength = ( long )( spanSeconds * 1000L * 1000L );
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_spanBegin = -_spanLength;
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_maxSpanCount = long.MaxValue;
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provider.AddSubscriber( this );
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_subscribed = true;
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_awaitingTokens = new HashSet<TimeSpanAwaitingToken>();
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_tokenToQuit = new ConcurrentQueue<TimeSpanAwaitingToken>();
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}
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/// <summary>
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/// Create a new <see cref="TimeSpanProvider" /> and define the length of time span. Length
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/// of a single time span is defined in microseconds.
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/// </summary>
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/// <param _name="spanLength"></param>
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/// <param _name="maxSpan"></param>
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/// <param _name="provider"></param>
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public TimeSpanProvider(
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long spanLength,
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long maxSpan,
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TimeSourceProviderBase provider )
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{
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if( provider == null ) {
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throw new ArgumentNullException( nameof( provider ) );
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}
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if( maxSpan <= 0 ) {
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throw new ArgumentException(
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"Sapn count cannot be smaller than zero" );
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}
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_timeSource = provider;
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_spanLength = spanLength;
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_spanBegin = -_spanLength;
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provider.AddSubscriber( this );
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_subscribed = true;
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_awaitingTokens = new HashSet<TimeSpanAwaitingToken>();
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_tokenToQuit = new ConcurrentQueue<TimeSpanAwaitingToken>();
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}
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public double SpanLength
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{
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get => ( _spanLength * 1.0 ) / ( 1000L * 1000L );
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}
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public float CurrentSecond
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{
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get => timeSpanCount.Value * SpanLengthLowPrecession;
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}
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public float SpanLengthLowPrecession
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{
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get => ( _spanLength * 1.0f ) / ( 1000 * 1000 );
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}
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public int CurrentSpan
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{
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get => timeSpanCount.Value;
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}
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/// <summary>
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/// Time source provider provided in <see cref="StgSharp" /> internal framework.
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/// </summary>
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public static TimeSourceProviderBase DefaultProvider => StgSharpTime.OnlyInstance;
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public TimeSpanAwaitingToken ParticipantSpanAwaiting( int count )
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{
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TimeSpanAwaitingToken token = new TimeSpanAwaitingToken(
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this, count );
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_tokenToAdd.Enqueue( token );
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return token;
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}
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public void QuitSpanAwaiting( TimeSpanAwaitingToken token )
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{
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_tokenToQuit.Enqueue( token );
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}
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public void StopSpanProviding()
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{
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Interlocked.Exchange( ref _maxSpanCount, 0 );
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}
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public void SubscribeToTimeSource(
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TimeSourceProviderBase serviceHandler )
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{
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if( serviceHandler == null ) {
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throw new ArgumentNullException( nameof( serviceHandler ) );
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}
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if( _subscribed ) {
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return;
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}
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_subscribed = true;
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serviceHandler.AddSubscriber( this );
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}
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public int ToInt32()
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{
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return timeSpanCount.Value;
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}
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internal bool CheckTime( long microseconds )
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{
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if( microseconds - _spanBegin < _spanLength ) {
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return true;
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}
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while( !_tokenToAdd.IsEmpty ) {
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_tokenToAdd.TryDequeue( out TimeSpanAwaitingToken tokenAdd );
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_awaitingTokens.Add( tokenAdd );
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}
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while( !_tokenToQuit.IsEmpty ) {
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_tokenToQuit.TryDequeue( out TimeSpanAwaitingToken tokenQuit );
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_awaitingTokens.Remove( tokenQuit );
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InternalIO.InternalWriteLog(
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$"Awaiting token {tokenQuit!.TokenID} has been removed.",
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LogType.Info );
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}
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_spanBegin = microseconds;
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timeSpanCount++;
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foreach( TimeSpanAwaitingToken item in _awaitingTokens ) {
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if( item.AwaitingSemaphoreSlim.CurrentCount == 0 ) {
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item.AwaitingSemaphoreSlim.Release();
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item.Refresh();
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} else {
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item.MissRefresh();
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}
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}
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return timeSpanCount < _maxSpanCount;
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}
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public static explicit operator int(
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[NotNull]TimeSpanProvider provider )
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{
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return provider.ToInt32();
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}
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}
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}
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