public async ETTask DownloadAsync(string url)
{
if (this.bundles.Count == 0 && this.downloadingBundle == "")
{
return;
}
try
{
while (true)
{
if (this.bundles.Count == 0)
{
break;
}
this.downloadingBundle = this.bundles.Dequeue();
while (true)
{
try
{
using (this.webRequest = EntityFactory.Create <UnityWebRequestAsync>(this.Domain))
{
await this.webRequest.DownloadAsync(url + "StreamingAssets/" + this.downloadingBundle);
byte[] data = this.webRequest.Request.downloadHandler.data;
string path = Path.Combine(PathHelper.AppHotfixResPath, this.downloadingBundle);
using (FileStream fs = new FileStream(path, FileMode.Create))
{
fs.Write(data, 0, data.Length);
}
}
}
catch (Exception e)
{
Log.Error($"download bundle error: {this.downloadingBundle}\n{e}");
continue;
}
break;
}
this.downloadedBundles.Add(this.downloadingBundle);
this.downloadingBundle = "";
this.webRequest = null;
}
}
catch (Exception e)
{
Log.Error(e);
}
}
public async ETTask StartAsync(string url)
{
// 获取远程的Version.txt
string versionUrl = "";
try
{
using (UnityWebRequestAsync webRequestAsync = EntityFactory.Create <UnityWebRequestAsync>(this.Domain))
{
versionUrl = url + "StreamingAssets/" + "Version.txt";
//Log.Debug(versionUrl);
await webRequestAsync.DownloadAsync(versionUrl);
remoteVersionConfig = JsonHelper.FromJson <VersionConfig>(webRequestAsync.Request.downloadHandler.text);
//Log.Debug(JsonHelper.ToJson(this.VersionConfig));
}
}
catch (Exception e)
{
throw new Exception($"url: {versionUrl}", e);
}
// 获取streaming目录的Version.txt
VersionConfig streamingVersionConfig;
string versionPath = Path.Combine(PathHelper.AppResPath4Web, "Version.txt");
using (UnityWebRequestAsync request = EntityFactory.Create <UnityWebRequestAsync>(this.Domain))
{
await request.DownloadAsync(versionPath);
streamingVersionConfig = JsonHelper.FromJson <VersionConfig>(request.Request.downloadHandler.text);
}
// 删掉远程不存在的文件
DirectoryInfo directoryInfo = new DirectoryInfo(PathHelper.AppHotfixResPath);
if (directoryInfo.Exists)
{
FileInfo[] fileInfos = directoryInfo.GetFiles();
foreach (FileInfo fileInfo in fileInfos)
{
if (remoteVersionConfig.FileInfoDict.ContainsKey(fileInfo.Name))
{
continue;
}
if (fileInfo.Name == "Version.txt")
{
continue;
}
fileInfo.Delete();
}
}
else
{
directoryInfo.Create();
}
// 对比MD5
foreach (FileVersionInfo fileVersionInfo in remoteVersionConfig.FileInfoDict.Values)
{
// 对比md5
string localFileMD5 = BundleHelper.GetBundleMD5(streamingVersionConfig, fileVersionInfo.File);
if (fileVersionInfo.MD5 == localFileMD5)
{
continue;
}
this.bundles.Enqueue(fileVersionInfo.File);
this.TotalSize += fileVersionInfo.Size;
}
}
public async ETTask DownloadAsync(string url)
{
if (this.bundles.Count == 0)
{
return;
}
try
{
//正在下载的文件个数
int downloadingCount = 0;
//下载单个文件
async void downloadFile()
{
if (this.bundles.Count == 0)
{
return;
}
downloadingCount++;
//取出一个进行下载
string downloading = this.bundles.Dequeue();
Log.Debug($"开始下载({downloadingCount}):{downloading}");
try
{
using (UnityWebRequestAsync webRequest = EntityFactory.Create <UnityWebRequestAsync>(this.Domain))
{
webRequests.Add(webRequest);
await webRequest.DownloadAsync(url + "StreamingAssets/" + downloading);
byte[] data = webRequest.Request.downloadHandler.data;
webRequests.Remove(webRequest);
string path = Path.Combine(PathHelper.AppHotfixResPath, downloading);
using (FileStream fs = new FileStream(path, FileMode.Create))
{
fs.Write(data, 0, data.Length);
}
}
}
catch (Exception e)
{
//下载异常跳过
Log.Error($"download bundle error: {downloading}\n{e}");
}
finally
{
downloadingCount--;
}
//正常下载
this.downloadedBundles.Add(downloading);
Log.Debug($"download bundle Finish: {downloading}\n");
}
/*
* //最多同时下载n个文件 下载40M(400~500)个文件测试时间(ms)对比
* //等待n个任务同时完成再继续 1~61616 2~44796 3~34377 4~31918 5~27184 6~25564 7~22817 8~22719
* //完成1个补充1个最大n个任务 1~61309 8~11871 9~10843 10~10600 15~9309 20~9146 100~9195
*/
//最大任务数量20 速度从61秒提升到9秒
int maxCount = 20;
while (true)
{
await TimerComponent.Instance.WaitAsync(10);
//需要下载队列取完 正在下载为0表示完成更新
if (this.bundles.Count == 0 && downloadingCount == 0)
{
break;
}
for (int i = downloadingCount; i < maxCount; i++)
{
downloadFile();
}
}
}
catch (Exception e)
{
Log.Error(e);
}
}