public void Load(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
CorgiMemoryChunk chunk = null;
if (data.TryGetValue(url, out chunk))
{
if (chunk.version >= version)
{
queue.Remove(chunk.url);
queue.AddFirst(chunk.url);
resolve(chunk.tex);
return;
}
else
{
queue.Remove(chunk.url);
RemoveChunk(chunk);
}
}
ResolveAction newResolve = (tex) =>
{
Debug.Log("memory new resolved!");
resolve(tex);
Save(tex, url, version);
};
fallback(url, version, newResolve);
}
public void Load(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
CorgiDiskChunk chunk = null;
if (map.TryGetValue(url, out chunk))
{
if (chunk.version >= version)
{
queue.Remove(chunk.url);
queue.AddFirst(chunk.url);
StartCoroutine(DownloadLocal(chunk, resolve, fallback));
return;
}
else
{
queue.Remove(chunk.url);
RemoveChunk(chunk);
}
}
ResolveAction newResolve = (tex) =>
{
Save(tex, url, version);
resolve(tex);
};
fallback(url, version, newResolve);
}
IEnumerator DownloadLocal(CorgiDiskChunk chunk, ResolveAction resolve, FallbackAction fallback)
{
var realPath = Path.Combine(Application.temporaryCachePath, chunk.path);
var www = new WWW("file:///" + realPath);
Debug.Log("path=" + "file:///" + realPath);
yield return(www);
if (!string.IsNullOrEmpty(www.error))
{
Debug.Log("[ERR]" + www.error + "\n" + chunk.url + " " + chunk.path);
RemoveChunk(chunk);
fallback(chunk.url, chunk.version, (bytes, tex) => {
Save(bytes, chunk.url, chunk.version);
resolve(bytes, tex);
});
}
else
{
Debug.Log("Disk hit");
Texture2D tex = new Texture2D(0, 0);
www.LoadImageIntoTexture(tex);
resolve(null, tex);
}
}
public void Load(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
CorgiDiskChunk chunk = null;
if (chunkData.TryGetValue(url, out chunk))
{
if (version >= 0 && chunk.version >= version)
{
chunkPriorityQueue.Remove(chunk.url);
chunkPriorityQueue.AddFirst(chunk.url);
corgi.StartCoroutine(DownloadLocal(chunk, resolve, fallback));
return;
}
else
{
chunkPriorityQueue.Remove(chunk.url);
RemoveChunk(chunk);
}
}
fallback(url, version, (bytes, tex) =>
{
Save(bytes, url, version);
resolve(bytes, tex);
});
}
public override int ComputeKey()
{
unchecked {
var hashCode = BindingFlags.GetHashCode();
hashCode = (hashCode * 397) ^ (Name != null ? Name.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ IsField.GetHashCode();
hashCode = (hashCode * 397) ^ (FallbackAction != null ? FallbackAction.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (GetterFallbackAction != null ? GetterFallbackAction.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (SetterFallbackAction != null ? SetterFallbackAction.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (InterfaceName != null ? InterfaceName.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (FallbackMode != null ? FallbackMode.GetHashCode() : 0);
return(hashCode);
}
}
private static async Task ExecuteAsync <TResult>(
this ActionContext <TResult>[] actionCtxBatch,
FallbackAction <TResult> fallbackAction)
{
try
{
await fallbackAction(actionCtxBatch);
}
catch (Exception ex)
{
foreach (var actionCtx in actionCtxBatch)
{
actionCtx.TaskCompletionSource.TrySetException(ex);
}
}
}
public void Load(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
CorgiMemoryChunk chunk = null;
if (chunkData.TryGetValue(url, out chunk))
{
// 아래 레이어에서 로드중인데 계속 요청이 들어오면 해당 key resolveQueue에 저장했다가 완료시 한꺼번에 호출
if (chunk == null)
{
Debug.Log("fetch pending.. " + url + " v." + version);
ResolveAction delegates;
if (resolveQueues.TryGetValue(url, out delegates))
{
delegates += resolve;
}
else
{
resolveQueues.Add(url, resolve);
}
return;
}
else if (version >= 0 && chunk.version >= version)
{
chunkPriorityQueue.Remove(chunk.url);
chunkPriorityQueue.AddFirst(chunk.url);
resolve(null, chunk.tex);
return;
}
else
{
chunkPriorityQueue.Remove(chunk.url);
RemoveChunk(chunk);
}
}
//아래 레이어에서 로드중인경우 체크용으로 해당 key chunk에 null을 넣어둔다.
chunkData.Add(url, null);
fallback(url, version, (bytes, tex) =>
{
resolve(bytes, tex);
OnResolve(url, version, tex);
});
}
IEnumerator DownloadURL(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
var www = new WWW(url);
yield return(www);
if (string.IsNullOrEmpty(www.error))
{
Debug.Log("Web hit");
Texture2D tex = new Texture2D(0, 0);
www.LoadImageIntoTexture(tex);
resolve(www.bytes, tex);
}
else
{
Debug.Log("Web Failed!");
fallback(url, version, resolve);
}
}
internal static async Task ImplementationAsync <TResult>(
SemaphoreSlim maxParallelizationSemaphore,
int[] maxQueueingActionsLimits,
ConcurrentQueue <ActionContext <TResult> > queuedActions,
FallbackAction <TResult> fallbackAction)
{
do
{
if (!maxParallelizationSemaphore.Wait(0))
{
return;
}
await Task
.Run(() => queuedActions.ExecuteAsync(maxQueueingActionsLimits, fallbackAction))
.ConfigureAwait(false);
maxParallelizationSemaphore.Release();
// This extra check is needed to prevent the possible race-condition where an action has
// been enqueued in an empty queue while the Semaphore is being released, leading to a
// situation where the last action is stuck in the queue until a new action is enqueued.
} while (!queuedActions.IsEmpty);
}
private static async Task ExecuteAsync <TResult>(
this ConcurrentQueue <ActionContext <TResult> > queuedActions,
int[] maxQueueingActionsLimits,
FallbackAction <TResult> fallbackAction)
{
while (true)
{
var actionCtxBatch = default(ActionContext <TResult>[]);
var actionCtx = default(ActionContext <TResult>);
lock (queuedActions)
{
var exceededLimits = maxQueueingActionsLimits.Where(x => x <= queuedActions.Count);
if (exceededLimits.Any())
{
actionCtxBatch = queuedActions.Dequeue(exceededLimits.First());
}
else if (queuedActions.TryDequeue(out actionCtx))
{
}
else
{
break;
}
}
if (actionCtxBatch != null)
{
await actionCtxBatch.ExecuteAsync(fallbackAction);
}
else
{
await actionCtx.ExecuteAsync();
}
}
}
void _Fallback(FallbackAction _fallback)
{
EnsureMainthread();
_fallback += _fallback;
}
/// <summary>
/// Builds a bulkhead isolation <see cref="AsyncPolicy{TResult}" />, which limits the maximum concurrency of actions executed through the policy. Imposing a maximum concurrency limits the potential of governed actions, when faulting, to bring down the system.
/// <para>When an execution would cause the number of actions executing concurrently through the policy to exceed <paramref name="maxParallelization" /> they will be queued and executed in-order. When an execution would cause the number of queuing actions to exceed any of the <paramref name="maxQueuingActionsLimits" />, <paramref name="fallbackActionAsync" /> is called with a number of <see cref="ActionContext{TResult}" /> equal to the largest exceeded limit in <paramref name="maxQueuingActionsLimits" />.</para>
/// </summary>
/// <param name="maxParallelization">The maximum number of concurrent actions that may be executing through the policy.</param>
/// <param name="maxQueuingActionsLimits">The maxmimum number of actions that may be queuing, waiting for an execution slot.</param>
/// <param name="fallbackActionAsync">An action to call asynchronously, if the bulkhead rejects execution due to oversubscription.</param>
/// <returns>The policy instance.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">maxParallelization;Value must be greater than zero.</exception>
/// <exception cref="System.ArgumentOutOfRangeException">maxQueuingActionsLimits;Value must be greater than or equal to zero.</exception>
/// <exception cref="System.ArgumentNullException">fallbackActionAsync</exception>
public static AsyncFallbackBulkheadPolicy <TResult> Create <TResult>(int maxParallelization, FallbackAction <TResult> fallbackActionAsync, params int[] maxQueuingActionsLimits)
{
if (maxParallelization <= 0)
{
throw new ArgumentOutOfRangeException(nameof(maxParallelization), "Value must be greater than zero.");
}
if (maxQueuingActionsLimits.Any(x => x <= 0))
{
throw new ArgumentOutOfRangeException(nameof(maxQueuingActionsLimits), "Value must be greater than zero.");
}
if (fallbackActionAsync == null)
{
throw new ArgumentNullException(nameof(fallbackActionAsync));
}
return(new AsyncFallbackBulkheadPolicy <TResult>(
maxParallelization,
fallbackActionAsync,
maxQueuingActionsLimits
));
}
void _Fallback(FallbackAction _fallback)
{
fallbackDelegate = _fallback;
}
/*
* public static void AddCacheLayer(int priority, FallbackAction action)
* {
* instance._AddCacheLayer(priority, action);
* }
*
* void _AddCacheLayer(int priority, FallbackAction action)
* {
* }
*/
public static void Fallback(FallbackAction fallback)
{
instance._Fallback(fallback);
}
private void RunCall(IDataContainer obj, string func, object[] parameters, bool isSelf, FallbackAction fallback)
{
// This executes in the job thread.
// Checks if this is still alive.
if (IsDisposed)
{
return;
}
// Checks if the function still exists.
LuaDataContainer dc = obj as LuaDataContainer;
if (dc == null)
{
return;
}
IDataProvider lf = dc.GetProvider(func, isSelf);
if (lf == null)
{
return;
}
// Calls the function.
try
{
lf.Execute(parameters);
}
catch (InvalidOperationException ex)
{
// Last chance fallback action, if any.
if (fallback != null)
{
fallback(ex);
}
else if (DefaultFallbackAction != null)
{
DefaultFallbackAction(ex);
}
else
{
// No fallback action: let's rethrow this.
throw;
}
}
catch (Exception)
{
// Other exceptions than InvalidOperationException are
// immediately rethrown because they are, indeed, unexpected.
throw;
}
}
private Action GetJob(IDataContainer obj, string func, object[] parameters, bool isSelf, FallbackAction fallbackAction)
{
return(new Action(() => RunCall(obj, func, parameters, isSelf, fallbackAction)));
}
/// <summary>
/// Executes asynchronously a call to a Lua self-function on the thread this ExecutionQueue is associated with.
/// </summary>
/// <remarks>This method returns once the call job is queued.</remarks>
/// <param name="obj">IDataContainer that contains the self-function.</param>
/// <param name="func">Field name in <paramref name="obj"/> that corresponds to the function to call.</param>
/// <param name="fallback">Action that is executed if an exception occurs during the
/// execution of the job. If this parameter is null, any exception occuring will be
/// rethrown.</param>
/// <param name="parameters">Optional parameters to pass to the function. <paramref name="obj"/> is automatically
/// added as first parameter.</param>
public void BeginCallSelf(IDataContainer obj, string func, FallbackAction fallback, params object[] parameters)
{
// Conforms the parameters and enqueues a job.
AcceptJob(GetJob(obj, func, ConformParameters(parameters), true, fallback));
}
private void RunCall(IDataContainer obj, string func, object[] parameters, bool isSelf, FallbackAction fallback)
{
// This executes in the job thread.
// Checks if this is still alive.
if (IsDisposed)
return;
// Checks if the function still exists.
LuaDataContainer dc = obj as LuaDataContainer;
if (dc == null)
return;
IDataProvider lf = dc.GetProvider(func, isSelf);
if (lf == null)
return;
// Calls the function.
try
{
lf.Execute(parameters);
}
catch (InvalidOperationException ex)
{
// Last chance fallback action, if any.
if (fallback != null)
{
fallback(ex);
}
else if (DefaultFallbackAction != null)
{
DefaultFallbackAction(ex);
}
else
{
// No fallback action: let's rethrow this.
throw;
}
}
catch (Exception)
{
// Other exceptions than InvalidOperationException are
// immediately rethrown because they are, indeed, unexpected.
throw;
}
}
private Action GetJob(IDataContainer obj, string func, object[] parameters, bool isSelf, FallbackAction fallbackAction)
{
return new Action(() => RunCall(obj, func, parameters, isSelf, fallbackAction));
}
/// <summary>
/// Executes asynchronously a call to a Lua self-function on the thread this ExecutionQueue is associated with.
/// </summary>
/// <remarks>This method returns once the call job is queued.</remarks>
/// <param name="obj">IDataContainer that contains the self-function.</param>
/// <param name="func">Field name in <paramref name="obj"/> that corresponds to the function to call.</param>
/// <param name="fallback">Action that is executed if an exception occurs during the
/// execution of the job. If this parameter is null, any exception occuring will be
/// rethrown.</param>
/// <param name="parameters">Optional parameters to pass to the function. <paramref name="obj"/> is automatically
/// added as first parameter.</param>
public void BeginCallSelf(IDataContainer obj, string func, FallbackAction fallback, params object[] parameters)
{
// Conforms the parameters and enqueues a job.
AcceptJob(GetJob(obj, func, ConformParameters(parameters), true, fallback));
}
/// <summary>
/// Builds a bulkhead isolation <see cref="AsyncPolicy{TResult}" />, which limits the maximum concurrency of actions executed through the policy. Imposing a maximum concurrency limits the potential of governed actions, when faulting, to bring down the system.
/// <para>When an execution would cause the number of actions executing concurrently through the policy to exceed <paramref name="maxParallelization" /> they will be queued and executed in-order.</para>
/// </summary>
/// <param name="maxParallelization">The maximum number of concurrent actions that may be executing through the policy.</param>
/// <returns>The policy instance.</returns>
public static AsyncFallbackBulkheadPolicy <TResult> Create <TResult>(int maxParallelization)
{
FallbackAction <TResult> doNothingAsync = _ => TaskHelper.EmptyTask;
return(Create(maxParallelization, doNothingAsync));
}
public void Load(string url, int version, ResolveAction resolve, FallbackAction fallback)
{
corgi.StartCoroutine(DownloadURL(url, version, resolve, fallback));
}
