internal override void Update()
{
if (_steps == ESteps.None || _steps == ESteps.Done)
{
return;
}
if (_steps == ESteps.InitCache)
{
// 每次启动时比对APP版本号是否一致
CacheData cacheData = CacheData.LoadCache();
if (cacheData.CacheAppVersion != Application.version)
{
YooLogger.Warning($"Cache is dirty ! Cache application version is {cacheData.CacheAppVersion}, Current application version is {Application.version}");
// 注意：在覆盖安装的时候，会保留APP沙盒目录，可以选择清空缓存目录
if (_impl.ClearCacheWhenDirty)
{
YooLogger.Warning("Clear cache files.");
SandboxHelper.DeleteCacheFolder();
}
// 更新缓存文件
CacheData.UpdateCache();
}
_steps = ESteps.Update;
}
if (_steps == ESteps.Update)
{
_appManifestLoader.Update();
Progress = _appManifestLoader.Progress();
if (_appManifestLoader.IsDone() == false)
{
return;
}
if (_appManifestLoader.Result == null)
{
_steps = ESteps.Done;
Status = EOperationStatus.Failed;
Error = _appManifestLoader.Error;
}
else
{
_steps = ESteps.Done;
Status = EOperationStatus.Succeed;
_impl.SetAppPatchManifest(_appManifestLoader.Result);
_impl.SetLocalPatchManifest(_appManifestLoader.Result);
}
}
}
/// <summary>
/// 等待异步执行完毕
/// </summary>
public void WaitForAsyncComplete()
{
IsWaitForAsyncComplete = true;
// 注意：主动轮询更新完成同步加载
Update();
// 验证结果
if (IsDone == false)
{
YooLogger.Warning($"WaitForAsyncComplete failed to loading : {MainAssetInfo.AssetPath}");
}
}
/// <summary>
/// 释放操作句柄
/// </summary>
public void ReleaseHandle(OperationHandleBase handle)
{
if (RefCount <= 0)
{
YooLogger.Warning("Asset provider reference count is already zero. There may be resource leaks !");
}
if (_handles.Remove(handle) == false)
{
throw new System.Exception("Should never get here !");
}
// 引用计数减少
RefCount--;
}
private void VerifyCallback(object obj)
{
ThreadInfo info = (ThreadInfo)obj;
if (info.Result)
{
_verifySuccessCount++;
DownloadSystem.CacheVerifyFile(info.Bundle.Hash, info.Bundle.BundleName);
}
else
{
_verifyFailCount++;
YooLogger.Warning($"Failed to verify file : {info.FilePath}");
if (File.Exists(info.FilePath))
{
File.Delete(info.FilePath);
}
}
_verifyingList.Remove(info.Bundle);
}
private bool UpdateVerifyingCache()
{
_syncContext.Update();
if (_waitingList.Count == 0 && _verifyingList.Count == 0)
{
return(true);
}
if (_verifyingList.Count >= _verifyMaxNum)
{
return(false);
}
for (int i = _waitingList.Count - 1; i >= 0; i--)
{
if (_verifyingList.Count >= _verifyMaxNum)
{
break;
}
var patchBundle = _waitingList[i];
if (RunThread(patchBundle))
{
_waitingList.RemoveAt(i);
_verifyingList.Add(patchBundle);
}
else
{
YooLogger.Warning("The thread pool is failed queued.");
break;
}
}
return(false);
}
public override void Update()
{
if (IsDone)
{
return;
}
if (Status == EStatus.None)
{
Status = EStatus.CheckBundle;
}
// 1. 检测资源包
if (Status == EStatus.CheckBundle)
{
if (IsWaitForAsyncComplete)
{
DependBundleGroup.WaitForAsyncComplete();
OwnerBundle.WaitForAsyncComplete();
}
if (DependBundleGroup.IsDone() == false)
{
return;
}
if (OwnerBundle.IsDone() == false)
{
return;
}
if (DependBundleGroup.IsSucceed() == false)
{
Status = EStatus.Fail;
LastError = DependBundleGroup.GetLastError();
InvokeCompletion();
return;
}
if (OwnerBundle.Status != AssetBundleLoaderBase.EStatus.Succeed)
{
Status = EStatus.Fail;
LastError = OwnerBundle.LastError;
InvokeCompletion();
return;
}
Status = EStatus.Loading;
}
// 2. 加载资源对象
if (Status == EStatus.Loading)
{
if (IsWaitForAsyncComplete)
{
if (MainAssetInfo.AssetType == null)
{
AssetObject = OwnerBundle.CacheBundle.LoadAsset(MainAssetInfo.AssetPath);
}
else
{
AssetObject = OwnerBundle.CacheBundle.LoadAsset(MainAssetInfo.AssetPath, MainAssetInfo.AssetType);
}
}
else
{
if (MainAssetInfo.AssetType == null)
{
_cacheRequest = OwnerBundle.CacheBundle.LoadAssetAsync(MainAssetInfo.AssetPath);
}
else
{
_cacheRequest = OwnerBundle.CacheBundle.LoadAssetAsync(MainAssetInfo.AssetPath, MainAssetInfo.AssetType);
}
}
Status = EStatus.Checking;
}
// 3. 检测加载结果
if (Status == EStatus.Checking)
{
if (_cacheRequest != null)
{
if (IsWaitForAsyncComplete)
{
// 强制挂起主线程（注意：该操作会很耗时）
YooLogger.Warning("Suspend the main thread to load unity asset.");
AssetObject = _cacheRequest.asset;
}
else
{
if (_cacheRequest.isDone == false)
{
return;
}
AssetObject = _cacheRequest.asset;
}
}
Status = AssetObject == null ? EStatus.Fail : EStatus.Success;
if (Status == EStatus.Fail)
{
if (MainAssetInfo.AssetType == null)
{
LastError = $"Failed to load asset : {MainAssetInfo.AssetPath} AssetType : null AssetBundle : {OwnerBundle.MainBundleInfo.BundleName}";
}
else
{
LastError = $"Failed to load asset : {MainAssetInfo.AssetPath} AssetType : {MainAssetInfo.AssetType} AssetBundle : {OwnerBundle.MainBundleInfo.BundleName}";
}
YooLogger.Error(LastError);
}
InvokeCompletion();
}
}
public override void Update()
{
if (_steps == ESteps.None)
{
return;
}
if (IsDone())
{
return;
}
if (_steps == ESteps.CreateDownload)
{
// 重置变量
_downloadProgress = 0f;
_downloadedBytes = 0;
_tryAgainTimer = 0f;
_requestURL = GetRequestURL();
_threadDownloader = new ThreadDownloader();
_threadDownloader.Run(_requestURL, _bundleInfo.GetCacheLoadPath(), _bundleInfo.Hash, _bundleInfo.CRC, _bundleInfo.SizeBytes, _timeout);
_steps = ESteps.CheckDownload;
}
if (_steps == ESteps.CheckDownload)
{
_downloadProgress = _threadDownloader.DownloadProgress;
_downloadedBytes = _threadDownloader.DownloadedBytes;
if (_threadDownloader.IsDone == false)
{
return;
}
if (_threadDownloader.HasError())
{
_lastError = _threadDownloader.Error;
// 失败后重新尝试
if (_failedTryAgain > 0)
{
ReportWarning();
_steps = ESteps.TryAgain;
}
else
{
ReportError();
_steps = ESteps.Failed;
}
}
else
{
DownloadSystem.CacheVerifyFile(_bundleInfo.Hash, _bundleInfo.BundleName);
_steps = ESteps.Succeed;
}
}
// 重新尝试下载
if (_steps == ESteps.TryAgain)
{
_tryAgainTimer += UnityEngine.Time.unscaledDeltaTime;
if (_tryAgainTimer > 1f)
{
_failedTryAgain--;
_steps = ESteps.CreateDownload;
YooLogger.Warning($"Try again download : {_requestURL}");
}
}
}
/// <summary>
/// 轮询更新
/// </summary>
public override void Update()
{
if (_steps == ESteps.Done)
{
return;
}
if (_steps == ESteps.None)
{
if (MainBundleInfo.IsInvalid)
{
_steps = ESteps.Done;
Status = EStatus.Failed;
LastError = $"The bundle info is invalid : {MainBundleInfo.BundleName}";
YooLogger.Error(LastError);
return;
}
if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromRemote)
{
_steps = ESteps.Download;
_fileLoadPath = MainBundleInfo.GetCacheLoadPath();
}
else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromStreaming)
{
_steps = ESteps.LoadFile;
_fileLoadPath = MainBundleInfo.GetStreamingLoadPath();
}
else if (MainBundleInfo.LoadMode == BundleInfo.ELoadMode.LoadFromCache)
{
_steps = ESteps.LoadFile;
_fileLoadPath = MainBundleInfo.GetCacheLoadPath();
}
else
{
throw new System.NotImplementedException(MainBundleInfo.LoadMode.ToString());
}
}
// 1. 从服务器下载
if (_steps == ESteps.Download)
{
int failedTryAgain = int.MaxValue;
_downloader = DownloadSystem.BeginDownload(MainBundleInfo, failedTryAgain);
_steps = ESteps.CheckDownload;
}
// 2. 检测服务器下载结果
if (_steps == ESteps.CheckDownload)
{
if (_downloader.IsDone() == false)
{
return;
}
if (_downloader.HasError())
{
_steps = ESteps.Done;
Status = EStatus.Failed;
LastError = _downloader.GetLastError();
}
else
{
_steps = ESteps.LoadFile;
}
}
// 3. 加载AssetBundle
if (_steps == ESteps.LoadFile)
{
#if UNITY_EDITOR
// 注意：Unity2017.4编辑器模式下，如果AssetBundle文件不存在会导致编辑器崩溃，这里做了预判。
if (System.IO.File.Exists(_fileLoadPath) == false)
{
_steps = ESteps.Done;
Status = EStatus.Failed;
LastError = $"Not found assetBundle file : {_fileLoadPath}";
YooLogger.Error(LastError);
return;
}
#endif
// Load assetBundle file
if (MainBundleInfo.IsEncrypted)
{
if (AssetSystem.DecryptionServices == null)
{
throw new Exception($"{nameof(AssetBundleFileLoader)} need {nameof(IDecryptionServices)} : {MainBundleInfo.BundleName}");
}
ulong offset = AssetSystem.DecryptionServices.GetFileOffset();
if (_isWaitForAsyncComplete)
{
CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath, 0, offset);
}
else
{
_cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath, 0, offset);
}
}
else
{
if (_isWaitForAsyncComplete)
{
CacheBundle = AssetBundle.LoadFromFile(_fileLoadPath);
}
else
{
_cacheRequest = AssetBundle.LoadFromFileAsync(_fileLoadPath);
}
}
_steps = ESteps.CheckFile;
}
// 4. 检测AssetBundle加载结果
if (_steps == ESteps.CheckFile)
{
if (_cacheRequest != null)
{
if (_isWaitForAsyncComplete)
{
// 强制挂起主线程（注意：该操作会很耗时）
YooLogger.Warning("Suspend the main thread to load unity bundle.");
CacheBundle = _cacheRequest.assetBundle;
}
else
{
if (_cacheRequest.isDone == false)
{
return;
}
CacheBundle = _cacheRequest.assetBundle;
}
}
// Check error
if (CacheBundle == null)
{
_steps = ESteps.Done;
Status = EStatus.Failed;
LastError = $"Failed to load assetBundle : {MainBundleInfo.BundleName}";
YooLogger.Error(LastError);
}
else
{
_steps = ESteps.Done;
Status = EStatus.Succeed;
}
}
}