| #region Using Statements␊ |
| using System;␊ |
| using System.IO;␊ |
| using System.Threading;␊ |
| using System.Runtime.Remoting.Messaging;␊ |
| #endregion␊ |
| ␊ |
|
| ␊ |
| ␉␉private PlayerIndex? devicePlayer;␊ |
| ␊ |
| ␉␉private StorageContainer deviceContainer;␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␊ |
| ␉␉#region Private Static Variables␊ |
|
| ␊ |
| ␉␉#region Private Delegates␊ |
| ␊ |
| ␉␉private delegate StorageDevice ShowSelectorAsynchronous(␊ |
| ␉␉␉PlayerIndex? player,␊ |
| ␉␉␉int sizeInBytes,␊ |
| ␉␉␉int directoryCount␊ |
| ␉␉);␊ |
| ␊ |
| ␉␉private delegate StorageContainer OpenContainerAsynchronous(string displayName);␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␊ |
| ␉␉#region Private XNA Lies␊ |
| ␊ |
| ␉␉private class NotAsyncLie : IAsyncResult␊ |
| ␉␉{␊ |
| ␉␉␉public object AsyncState␊ |
| ␉␉␉{␊ |
| ␉␉␉␉get;␊ |
| ␉␉␉␉private set;␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉public bool CompletedSynchronously␊ |
| ␉␉␉{␊ |
| ␉␉␉␉get␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉return true;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉public bool IsCompleted␊ |
| ␉␉␉{␊ |
| ␉␉␉␉get␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉return true;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉public WaitHandle AsyncWaitHandle␊ |
| ␉␉␉{␊ |
| ␉␉␉␉get;␊ |
| ␉␉␉␉private set;␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉public NotAsyncLie(object state)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉AsyncState = state;␊ |
| ␉␉␉␉AsyncWaitHandle = new ManualResetEvent(true);␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉private class ShowSelectorLie : NotAsyncLie␊ |
| ␉␉{␊ |
| ␉␉␉public readonly PlayerIndex? PlayerIndex;␊ |
| ␊ |
| ␉␉␉public ShowSelectorLie(object state, PlayerIndex? playerIndex) : base(state)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉PlayerIndex = playerIndex;␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉private class OpenContainerLie : NotAsyncLie␊ |
| ␉␉{␊ |
| ␉␉␉public readonly string DisplayName;␊ |
| ␊ |
| ␉␉␉public OpenContainerLie(object state, string displayName) : base(state)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉DisplayName = displayName;␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␊ |
| ␉␉#region Internal Constructors␊ |
| ␊ |
| ␉␉/// <summary>␊ |
| ␉␉/// Creates a new <see cref="StorageDevice"/> instance.␊ |
| ␉␉/// </summary>␊ |
| ␉␉/// <param name="player">The playerIndex of the player.</param>␊ |
| ␉␉/// <param name="sizeInBytes">Size of the storage device.</param>␊ |
| ␉␉/// <param name="directoryCount"></param>␊ |
| ␉␉internal StorageDevice(PlayerIndex? player, int sizeInBytes, int directoryCount)␊ |
| ␉␉internal StorageDevice(PlayerIndex? player)␊ |
| ␉␉{␊ |
| ␉␉␉devicePlayer = player;␊ |
| ␉␉}␊ |
|
| ␉␉␉AsyncCallback callback,␊ |
| ␉␉␉object state␊ |
| ␉␉) {␊ |
| ␉␉␉try␊ |
| ␉␉␉{␊ |
| ␉␉␉␉OpenContainerAsynchronous AsynchronousOpen = new OpenContainerAsynchronous(Open);␊ |
| ␉␉␉␉return AsynchronousOpen.BeginInvoke(displayName, callback, state);␊ |
| ␉␉␉}␊ |
| ␉␉␉finally␊ |
| ␉␉␉IAsyncResult result = new OpenContainerLie(state, displayName);␊ |
| ␉␉␉if (callback != null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// TODO: No resources to clean up? Remove this finally block?␊ |
| ␉␉␉␉callback(result);␊ |
| ␉␉␉}␊ |
| ␉␉␉return result;␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉/// <summary>␊ |
|
| ␉␉/// <param name="result">Result of BeginOpenContainer.</param>␊ |
| ␉␉public StorageContainer EndOpenContainer(IAsyncResult result)␊ |
| ␉␉{␊ |
| ␉␉␉StorageContainer returnValue = null;␊ |
| ␉␉␉try␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Retrieve the delegate.␊ |
| ␉␉␉␉AsyncResult asyncResult = result as AsyncResult;␊ |
| ␉␉␉␉if (asyncResult != null)␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉OpenContainerAsynchronous asyncDelegate = asyncResult.AsyncDelegate␊ |
| ␉␉␉␉␉␉as OpenContainerAsynchronous;␊ |
| ␊ |
| ␉␉␉␉␉// Wait for the WaitHandle to become signaled.␊ |
| ␉␉␉␉␉result.AsyncWaitHandle.WaitOne();␊ |
| ␊ |
| ␉␉␉␉␉// Call EndInvoke to retrieve the results.␊ |
| ␉␉␉␉␉if (asyncDelegate != null)␊ |
| ␉␉␉␉␉{␊ |
| ␉␉␉␉␉␉returnValue = asyncDelegate.EndInvoke(result);␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␉␉␉finally␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Close the wait handle.␊ |
| ␉␉␉␉result.AsyncWaitHandle.Dispose();␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉return returnValue;␊ |
| ␉␉␉return new StorageContainer(␊ |
| ␉␉␉␉this,␊ |
| ␉␉␉␉(result as OpenContainerLie).DisplayName,␊ |
| ␉␉␉␉storageRoot,␊ |
| ␉␉␉␉devicePlayer␊ |
| ␉␉␉);␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
|
| ␉␉␉AsyncCallback callback,␊ |
| ␉␉␉object state␊ |
| ␉␉) {␊ |
| ␉␉␉ShowSelectorAsynchronous del = new ShowSelectorAsynchronous(Show);␊ |
| ␉␉␉return del.BeginInvoke(null, sizeInBytes, directoryCount, callback, state);␊ |
| ␉␉␉IAsyncResult result = new ShowSelectorLie(state, null);␊ |
| ␉␉␉if (callback != null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉callback(result);␊ |
| ␉␉␉}␊ |
| ␉␉␉return result;␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉/// <summary>␊ |
|
| ␉␉␉AsyncCallback callback,␊ |
| ␉␉␉object state␊ |
| ␉␉) {␊ |
| ␉␉␉ShowSelectorAsynchronous del = new ShowSelectorAsynchronous(Show);␊ |
| ␉␉␉return del.BeginInvoke(player, sizeInBytes, directoryCount, callback, state);␊ |
| ␉␉␉IAsyncResult result = new ShowSelectorLie(state, player);␊ |
| ␉␉␉if (callback != null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉callback(result);␊ |
| ␉␉␉}␊ |
| ␉␉␉return result;␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉/// <summary>␊ |
|
| ␉␉/// <param name="result">The result of BeginShowSelector.</param>␊ |
| ␉␉public static StorageDevice EndShowSelector(IAsyncResult result)␊ |
| ␉␉{␊ |
| ␉␉␉if (!result.IsCompleted)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉// Wait for the WaitHandle to become signaled.␊ |
| ␉␉␉␉try␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉result.AsyncWaitHandle.WaitOne();␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉finally␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉// Retrieve the delegate.␊ |
| ␉␉␉AsyncResult asyncResult = (AsyncResult) result;␊ |
| ␊ |
| ␉␉␉ShowSelectorAsynchronous del = asyncResult.AsyncDelegate as ShowSelectorAsynchronous;␊ |
| ␊ |
| ␉␉␉if (del != null)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉return del.EndInvoke(result);␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉throw new ArgumentException("result");␊ |
| ␉␉␉return new StorageDevice((result as ShowSelectorLie).PlayerIndex);␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
|
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␊ |
| ␉␉#region Private OpenContainer Async Method␊ |
| ␊ |
| ␉␉// Private method to handle the creation of the StorageDevice.␊ |
| ␉␉private StorageContainer Open(string displayName)␊ |
| ␉␉{␊ |
| ␉␉␉deviceContainer = new StorageContainer(␊ |
| ␉␉␉␉this,␊ |
| ␉␉␉␉displayName,␊ |
| ␉␉␉␉storageRoot,␊ |
| ␉␉␉␉devicePlayer␊ |
| ␉␉␉);␊ |
| ␉␉␉return deviceContainer;␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␊ |
| ␉␉#region Private ShowSelector Async Method␊ |
| ␊ |
| ␉␉// Private method to handle the creation of the StorageDevice.␊ |
| ␉␉private static StorageDevice Show(PlayerIndex? player, int sizeInBytes, int directoryCount)␊ |
| ␉␉{␊ |
| ␉␉␉return new StorageDevice(player, sizeInBytes, directoryCount);␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉#endregion␊ |
| ␉}␊ |
| }␊ |
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