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Added support for 'await' operator to promises
Added support for 'await' operator to promises
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r138:f75cfa58e3d4 v2
r151:ec91a6dfa5b3 v2
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TaskController.cs
143 lines | 3.7 KiB | text/x-csharp | CSharpLexer
/ Implab / TaskController.cs
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cin
inital progress handling
 r7 using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
namespace Implab
{
/// <summary>
/// This class allows to interact with asyncronuos task.
/// </summary>
/// <remarks>
/// Members of this object are thread safe.
/// </remarks>
cin
refactoring
 r25 public class TaskController: IProgressNotifier, ITaskController
cin
inital progress handling
 r7 {
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implemeted new cancellable promises concept
 r10 readonly object m_lock;
cin
inital progress handling
 r7 string m_message;
float m_current;
float m_max;
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refactoring, added WorkerPool
 r12 bool m_cancelled;
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refactoring
 r25 public event EventHandler Cancelled;
cin
inital progress handling
 r7 public event EventHandler<ValueEventArgs<string>> MessageUpdated;
public event EventHandler<ValueEventArgs<float>> ProgressUpdated;
public event EventHandler<ProgressInitEventArgs> ProgressInit;
public TaskController()
{
m_lock = new Object();
}
public string Message
{
get
{
lock (m_lock)
return m_message;
}
set
{
lock (m_lock)
{
m_message = value;
OnMessageUpdated();
}
}
}
public float CurrentProgress
{
get
{
lock (m_lock)
return m_current;
}
set
{
lock (m_lock)
{
var prev = m_current;
m_current = value;
if (m_current >= m_max)
m_current = m_max;
if (m_current != prev)
OnProgressUpdated();
}
}
}
public void InitProgress(float current, float max, string message)
{
if (max < 0)
throw new ArgumentOutOfRangeException("max");
if (current < 0 || current > max)
throw new ArgumentOutOfRangeException("current");
lock(m_lock) {
m_current = current;
m_max = max;
m_message = message;
OnProgressInit();
}
}
cin
refactoring
 r25 public bool IsCancelled {
cin
refactoring, added WorkerPool
 r12 get {
lock (m_lock)
return m_cancelled;
}
}
cin
Refactoring of the IPromise<T> interface...
 r76 public void Cancel() {
cin
refactoring, added WorkerPool
 r12 lock (m_lock) {
cin
Refactoring of the IPromise<T> interface...
 r76 if (!m_cancelled)
cin
refactoring, added WorkerPool
 r12 m_cancelled = true;
}
}
cin
added ICancellable.Cancel(Exception) to allow specify the reason of cancellation
 r138 public void Cancel(Exception reason) {
lock (m_lock) {
if (!m_cancelled)
m_cancelled = true;
}
}
cin
refactoring
 r25 protected virtual void OnCancelled() {
var temp = Cancelled;
if (temp != null) {
temp(this,new EventArgs());
}
}
cin
inital progress handling
 r7 protected virtual void OnMessageUpdated()
{
var temp = MessageUpdated;
if (temp != null)
{
temp(this, new ValueEventArgs<string>(m_message));
}
}
protected virtual void OnProgressUpdated()
{
var temp = ProgressUpdated;
if (temp != null)
{
temp(this,new ValueEventArgs<float>(m_current));
}
}
protected virtual void OnProgressInit()
{
var temp = ProgressInit;
if (temp != null)
{
temp(this, new ProgressInitEventArgs(m_current,m_max, m_message));
}
}
}
}