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Location: alysbrooks-public/games/isometric-park-fna/FNA/src/Storage/StorageDevice.cs - annotation

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Commit Description:
Add timers for Simulation and various engines...
Commit Description:
Add timers for Simulation and various engines Starting to add additional timers for different stages of the process of updating in order to get more insight into what is slowing it down. The update takes 9ms, which is much longer than it used to. Engine-specific timers are coming later.
References:
r588:3b7b6298ad9c m6-tiles-and-trees
File last commit:
r0:e33f209de7e5 default
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FNA/src/Storage/StorageDevice.cs
356 lines | 8.0 KiB | text/x-csharp | CSharpLexer
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alys
Early working version (including all dependencies, lol).
 r0 #region License
/* FNA - XNA4 Reimplementation for Desktop Platforms
* Copyright 2009-2020 Ethan Lee and the MonoGame Team
*
* Released under the Microsoft Public License.
* See LICENSE for details.
*/
#endregion
#region Using Statements
using System;
using System.IO;
using System.Threading;
#endregion
namespace Microsoft.Xna.Framework.Storage
{
/// <summary>
/// Exposes a storage device for storing user data.
/// </summary>
/// <remarks>
/// MSDN documentation contains related conceptual article:
/// http://msdn.microsoft.com/en-us/library/bb200105.aspx
/// </remarks>
public sealed class StorageDevice
{
#region Public Properties
/// <summary>
/// Returns the amount of free space.
/// </summary>
public long FreeSpace
{
get
{
try
{
// null drive means the OS denied info, so we get to guess!
if (drive == null)
{
return long.MaxValue;
}
return drive.AvailableFreeSpace;
}
catch(Exception e)
{
// Storage root was invalid or unavailable.
throw new StorageDeviceNotConnectedException(
"The storage device bound to the container is not connected.",
e
);
}
}
}
/// <summary>
/// Returns true if this StorageDevice path is accessible, false otherwise.
/// </summary>
public bool IsConnected
{
get
{
try
{
// null drive means the OS denied info, so we get to guess!
if (drive == null)
{
return true;
}
return drive.IsReady;
}
catch
{
// The storageRoot path is invalid / has been removed.
return false;
}
}
}
/// <summary>
/// Returns the total size of device.
/// </summary>
public long TotalSpace
{
get
{
try
{
// null drive means the OS denied info, so we get to guess!
if (drive == null)
{
return long.MaxValue;
}
return drive.TotalSize;
}
catch(Exception e)
{
// Storage root was invalid or unavailable.
throw new StorageDeviceNotConnectedException(
"The storage device bound to the container is not connected.",
e
);
}
}
}
#endregion
#region Private Variables
private PlayerIndex? devicePlayer;
#endregion
#region Private Static Variables
private static readonly string storageRoot = FNAPlatform.GetStorageRoot();
private static readonly DriveInfo drive = FNAPlatform.GetDriveInfo(storageRoot);
#endregion
#region Events
/// <summary>
/// Fired when a device is removed or inserted.
/// </summary>
public static event EventHandler<EventArgs> DeviceChanged;
private void OnDeviceChanged()
{
if (DeviceChanged != null)
{
DeviceChanged(this, null);
}
}
#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
internal StorageDevice(PlayerIndex? player)
{
devicePlayer = player;
}
#endregion
#region Public OpenContainer Methods
/// <summary>
/// Begins the open for a StorageContainer.
/// </summary>
/// <returns>The open StorageContainer.</returns>
/// <param name="displayName">Name of file.</param>
/// <param name="callback">Method to call on completion.</param>
/// <param name="state">Request identifier object for callback (can be null).</param>
public IAsyncResult BeginOpenContainer(
string displayName,
AsyncCallback callback,
object state
) {
IAsyncResult result = new OpenContainerLie(state, displayName);
if (callback != null)
{
callback(result);
}
return result;
}
/// <summary>
/// Ends the open container process.
/// </summary>
/// <returns>The open StorageContainer.</returns>
/// <param name="result">Result of BeginOpenContainer.</param>
public StorageContainer EndOpenContainer(IAsyncResult result)
{
return new StorageContainer(
this,
(result as OpenContainerLie).DisplayName,
storageRoot,
devicePlayer
);
}
#endregion
#region Public ShowSelector Methods
/// <summary>
/// Begin process to display the StorageDevice selector UI.
/// </summary>
/// <returns>The show selector.</returns>
/// <param name="callback">Method to invoke when device is selected by player.</param>
/// <param name="state">Request identifier object for callback (can be null).</param>
public static IAsyncResult BeginShowSelector(
AsyncCallback callback,
object state
) {
return BeginShowSelector(
0,
0,
callback,
state
);
}
/// <summary>
/// Begin process to display the StorageDevice selector UI.
/// </summary>
/// <returns>The show selector.</returns>
/// <param name="player">The PlayerIndex. Only PlayerIndex.One is valid on Windows.</param>
/// <param name="callback">Method to invoke when device is selected by player.</param>
/// <param name="state">Request identifier object for callback (can be null).</param>
public static IAsyncResult BeginShowSelector(
PlayerIndex player,
AsyncCallback callback,
object state
) {
return BeginShowSelector(
player,
0,
0,
callback,
state
);
}
/// <summary>
/// Begin process to display the StorageDevice selector UI.
/// </summary>
/// <returns>The show selector.</returns>
/// <param name="sizeInBytes">Size (in bytes) of data to write.</param>
/// <param name="directoryCount">Number of directories to write.</param>
/// <param name="callback">Method to invoke when device is selected by player.</param>
/// <param name="state">Request identifier object for callback (can be null).</param>
public static IAsyncResult BeginShowSelector(
int sizeInBytes,
int directoryCount,
AsyncCallback callback,
object state
) {
IAsyncResult result = new ShowSelectorLie(state, null);
if (callback != null)
{
callback(result);
}
return result;
}
/// <summary>
/// Begin process to display the StorageDevice selector UI.
/// </summary>
/// <returns>The show selector.</returns>
/// <param name="player">The PlayerIndex. Only PlayerIndex.One is valid on Windows.</param>
/// <param name="sizeInBytes">Size (in bytes) of data to write.</param>
/// <param name="directoryCount">Number of directories to write.</param>
/// <param name="callback">Method to invoke when device is selected by player.</param>
/// <param name="state">Request identifier object for callback (can be null).</param>
public static IAsyncResult BeginShowSelector(
PlayerIndex player,
int sizeInBytes,
int directoryCount,
AsyncCallback callback,
object state
) {
IAsyncResult result = new ShowSelectorLie(state, player);
if (callback != null)
{
callback(result);
}
return result;
}
/// <summary>
/// Ends the show selector user interface display.
/// </summary>
/// <returns>The storage device.</returns>
/// <param name="result">The result of BeginShowSelector.</param>
public static StorageDevice EndShowSelector(IAsyncResult result)
{
return new StorageDevice((result as ShowSelectorLie).PlayerIndex);
}
#endregion
#region Public StorageContainer Delete Method
public void DeleteContainer(string titleName)
{
throw new NotImplementedException();
}
#endregion
}
}