//-------------------------------------------------------------------------------
/// <summary>
/// start created task.
/// </summary>
/// <param name="taskHandle">task identifier.</param>
//-------------------------------------------------------------------------------
#region Execute / Destory
public void ExecuteTask(TaskHandle taskHandle)
{
TaskType taskType = GetTaskByHandle(taskHandle);
QueueEntry queueEntry = new QueueEntry(taskType);
m_queueLock.TryEnterWriteLock(1000);
m_taskQueue.Enqueue(queueEntry);
m_queueLock.ExitWriteLock();
}
//-------------------------------------------------------------------------------
/// <summary>
/// Destroys created task.
/// </summary>
/// <param name="taskHandle">task identifier.</param>
//-------------------------------------------------------------------------------
public void DestroyTask(TaskHandle taskHandle)
{
TaskType taskType = GetTaskByHandle(taskHandle);
Console.WriteLine("Removing " + taskType.Name);
m_dictionaryLock.TryEnterWriteLock(5);
m_tasks.Remove(taskHandle);
m_dictionaryLock.ExitWriteLock();
}
//----------------------------------------------------------------------------------
/// <summary>
/// unload assets
/// </summary>
/// <param name="task"></param>
//----------------------------------------------------------------------------------
public void Unload(Object task)
{
Task <Object> theTask = task as Task <Object>;
Asset theAsset = theTask.UserData as Asset;
TaskHandle handle = TaskManager.Instance.CreateTask <bool>(theAsset, theAsset.UnloadAssets, false);
TaskManager.Instance.ExecuteTask(handle);
TaskManager.Instance.GetTaskByHandle(handle).Event.WaitOne();
theTask.ReturnData = theAsset;
}
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
public ManualResetEvent GetResetEvent(TaskHandle taskHandle)
{
ManualResetEvent resetEvent;
m_dictionaryLock.TryEnterReadLock(5);
{
resetEvent = m_tasks[taskHandle].Event;
}
m_dictionaryLock.ExitReadLock();
return(resetEvent);
}
//-------------------------------------------------------------------------------
/// <summary>
/// accessors
/// </summary>
/// <param name="taskHandle">the handle for the task to access.</param>
/// <returns>Task</returns>
//-------------------------------------------------------------------------------
#region Get Functions
public TaskType GetTaskByHandle(TaskHandle taskHandle)
{
TaskType taskType;
m_dictionaryLock.TryEnterReadLock(5);
{
taskType = m_tasks[taskHandle];
}
m_dictionaryLock.ExitReadLock();
return(taskType);
}
//-------------------------------------------------------------------------------
/// <summary>
/// overloaded: Creates a task.
/// </summary>
/// <typeparam name="T">data type.</typeparam>
/// <param name="aTaskCompletedCallBacks"> callback array upon complete.</param>
/// <param name="userData">user data to be used in task.</param>
/// <param name="task">thread</param>
/// <param name="bContinuousExecution">if allow continuous execution.</param>
/// <returns></returns>
//-------------------------------------------------------------------------------
public TaskHandle CreateTask <T>(TaskCompleted[] aTaskCompletedCallBacks, object userData, ParameterizedThreadStart task, bool bContinuousExecution)
{
Task <T> theTask = new Task <T>(aTaskCompletedCallBacks, userData, task, bContinuousExecution);
theTask.Name = "Task " + m_nTaskCount;
TaskHandle taskHandle = new TaskHandle(m_nTaskCount++);
theTask.Handle = taskHandle;
m_dictionaryLock.TryEnterWriteLock(5);
{
m_tasks.Add(taskHandle, theTask);
}
m_dictionaryLock.ExitWriteLock();
return(taskHandle);
}
//-------------------------------------------------------------------------------
/// <summary>
/// Get return data from task after completion.
/// </summary>
/// <typeparam name="T">data type</typeparam>
/// <param name="taskHandle">handle for particular task.</param>
/// <returns>data from task.</returns>
//-------------------------------------------------------------------------------
public T GetReturnData <T>(TaskHandle taskHandle)
{
TaskType task;
m_dictionaryLock.TryEnterReadLock(5);
task = m_tasks[taskHandle];
m_dictionaryLock.ExitReadLock();
Debug.Assert(task != null);
Type type = task.GetType();
PropertyInfo property = type.GetProperty("ReturnData");
MethodInfo methodInfo = property.GetGetMethod();
T returnData = (T)methodInfo.Invoke(task, null);
DestroyTask(taskHandle);
return(returnData);
}
//-------------------------------------------------------------------------------
/// <summary>
/// Creates a new task.
/// </summary>
/// <typeparam name="T">T is the stored data type</typeparam>
/// <param name="userData">user data to be used in the task.</param>
/// <param name="task">the thread for the task.</param>
/// <param name="bContinuousExecution">if the task is to continuously execute and readd its self.</param>
/// <returns></returns>
//-------------------------------------------------------------------------------
#region Create Task Methods
public TaskHandle CreateTask <T>(object userData, ParameterizedThreadStart task, bool bContinuousExecution)
{
//create reset event object.
ManualResetEvent resetEvent = new ManualResetEvent(false);
Task <T> theTask = new Task <T>(resetEvent, userData, task, bContinuousExecution);
theTask.Name = "Task " + m_nTaskCount;
//create new task handle to identify this task
TaskHandle taskHandle = new TaskHandle(m_nTaskCount++);
theTask.Handle = taskHandle;
//lock and add task to dictionary.
m_dictionaryLock.TryEnterWriteLock(5);
{
m_tasks.Add(taskHandle, theTask);
}
m_dictionaryLock.ExitWriteLock();
return(taskHandle);
}
//----------------------------------------------------------------------------------
/// <summary>
/// Stream assets in.
/// </summary>
/// <param name="szAssetGroupName"></param>
/// <returns></returns>
//----------------------------------------------------------------------------------
private StreamChunk StreamAssets(String szAssetGroupName)
{
List <LoadingTask> loadingTasks = new List <LoadingTask>();
List <ManualResetEvent> resetEvents = new List <ManualResetEvent>();
RegionLoader regionLoader = new RegionLoader(m_iServerProvider);
regionLoader.RootDirectory = "Content";
StreamChunkDefinition streamChunkDefinition;
String szFullPath = szAssetGroupName;
streamChunkDefinition = regionLoader.Load <StreamChunkDefinition>(szFullPath);
List <TaskHandle> aTaskHandles = new List <TaskHandle>(streamChunkDefinition.m_assetDefinitions.Count);
StreamChunk streamChunk = new StreamChunk(szAssetGroupName);
foreach (AssetDefinition assetDef in streamChunkDefinition.m_assetDefinitions)
{
#if MT_LOAD
#region Multi-Threaded Version
LoadingTask loadTask = new LoadingTask();
TaskHandle taskHandle = TaskManager.Instance.CreateTask <Object>(new LoadingData(assetDef, regionLoader), loadTask.Load, false);
aTaskHandles.Add(taskHandle);
loadingTasks.Add(loadTask);
#endregion
#else
#region Single-Thread Version
// Object assetObject;
// String szFullName = assetDef.m_szDirectory + assetDef.m_szAssetName;
// Type creationType;
//
// creationType = Type.GetType(assetDef.m_szAssetType, true);
// Debug.Assert(creationType != null);
//
// MethodInfo genericMethod = methodInfo.MakeGenericMethod(creationType);
// assetObject = genericMethod.Invoke(contentManager, new object[] { szFullName });
// Debug.Assert(assetObject != null);
//
// streamChunk.AddAsset(assetObject);
#endregion
#endif
}
//These two steps could be merged to one...saving memory ...but doing it like this for clarity atm.
foreach (TaskHandle taskHandle in aTaskHandles)
{
TaskManager.Instance.ExecuteTask(taskHandle);
resetEvents.Add(TaskManager.Instance.GetTaskByHandle(taskHandle).Event);
}
WaitHandle.WaitAll(resetEvents.ToArray());
Console.WriteLine("Load Job done.");
foreach (LoadingTask task in loadingTasks)
{
streamChunk.AddAsset(task.HashCode, task.AssetObject);
}
streamChunk.OwnContentManager = regionLoader;
return(streamChunk);
}
