protected virtual IEnumerator DoDownloadFileAsync(string path, FileInfo fileInfo,
IProgressPromise <ProgressInfo> promise, float overtimeTime)
{
if (fileInfo.Directory != null && !fileInfo.Directory.Exists)
{
fileInfo.Directory.Create();
}
ProgressInfo progressInfo = new ProgressInfo {
TotalCount = 1
};
using (UnityWebRequest www = new UnityWebRequest(path))
{
var downloadFileHandler = new DownloadFileHandler(fileInfo);
www.downloadHandler = downloadFileHandler;
www.SendWebRequest();
float timer = 0;
while (!www.isDone)
{
if (www.downloadProgress >= 0)
{
if (progressInfo.TotalSize <= 0)
{
progressInfo.TotalSize = (long)(www.downloadedBytes / www.downloadProgress);
}
progressInfo.CompletedSize = (long)www.downloadedBytes;
promise.UpdateProgress(progressInfo);
}
timer += Time.deltaTime;
if (timer > overtimeTime)
{
promise.SetException(new TimeoutException());
break;
}
yield return(null);
}
while (!downloadFileHandler.WriteFinish)
{
timer += Time.deltaTime;
if (timer > overtimeTime)
{
promise.SetException(new TimeoutException());
break;
}
yield return(null);
}
if (www.isNetworkError || www.isHttpError)
{
promise.SetException(www.error);
yield break;
}
progressInfo.CompletedCount = 1;
progressInfo.CompletedSize = progressInfo.TotalSize;
promise.UpdateProgress(progressInfo);
promise.SetResult(fileInfo);
}
}
protected virtual IEnumerator DoDownloadFileAsync(Uri path, FileInfo fileInfo,
IProgressPromise <ProgressInfo> promise)
{
if (fileInfo.Directory != null && !fileInfo.Directory.Exists)
{
fileInfo.Directory.Create();
}
ProgressInfo progressInfo = new ProgressInfo {
TotalCount = 1
};
using (UnityWebRequest www = new UnityWebRequest(this.GetAbsoluteUri(path).AbsoluteUri))
{
www.downloadHandler = new DownloadFileHandler(fileInfo);
www.SendWebRequest();
while (!www.isDone)
{
if (www.downloadProgress >= 0)
{
if (progressInfo.TotalSize <= 0)
{
progressInfo.TotalSize = (long)(www.downloadedBytes / www.downloadProgress);
}
progressInfo.CompletedSize = (long)www.downloadedBytes;
promise.UpdateProgress(progressInfo);
}
yield return(null);
}
if (www.isNetworkError)
{
promise.SetException(www.error);
yield break;
}
progressInfo.CompletedCount = 1;
progressInfo.CompletedSize = progressInfo.TotalSize;
promise.UpdateProgress(progressInfo);
promise.SetResult(fileInfo);
}
}
protected virtual IEnumerator DoDownloadFileAsync(ResourceInfo[] infos, IProgressPromise <ProgressInfo> promise)
{
long totalSize = 0;
long downloadedSize = 0;
List <ResourceInfo> downloadList = new List <ResourceInfo>();
foreach (var info in infos)
{
var fileInfo = info.FileInfo;
if (info.FileSize < 0)
{
if (fileInfo.Exists)
{
info.FileSize = fileInfo.Length;
}
else
{
using (UnityWebRequest www = UnityWebRequest.Head(info.Path))
{
yield return(www.SendWebRequest());
string contentLength = www.GetResponseHeader("Content-Length");
if (!string.IsNullOrEmpty(contentLength))
{
info.FileSize = long.Parse(contentLength);
}
}
}
}
totalSize += info.FileSize;
if (fileInfo.Exists)
{
downloadedSize += info.FileSize;
}
else
{
downloadList.Add(info);
}
}
ProgressInfo progressInfo = new ProgressInfo
{
TotalCount = infos.Length,
CompletedCount = infos.Length - downloadList.Count,
TotalSize = totalSize,
CompletedSize = downloadedSize
};
yield return(null);
List <KeyValuePair <ResourceInfo, UnityWebRequest> > tasks =
new List <KeyValuePair <ResourceInfo, UnityWebRequest> >();
for (int i = 0; i < downloadList.Count; i++)
{
ResourceInfo info = downloadList[i];
var path = info.Path;
FileInfo fileInfo = info.FileInfo;
if (fileInfo.Directory != null && !fileInfo.Directory.Exists)
{
fileInfo.Directory.Create();
}
UnityWebRequest www = new UnityWebRequest(path);
www.downloadHandler = new DownloadFileHandler(fileInfo);
www.SendWebRequest();
tasks.Add(new KeyValuePair <ResourceInfo, UnityWebRequest>(info, www));
while (tasks.Count >= this.MaxTaskCount || (i == downloadList.Count - 1 && tasks.Count > 0))
{
long tmpSize = 0;
for (int j = tasks.Count - 1; j >= 0; j--)
{
var task = tasks[j];
ResourceInfo _info = task.Key;
UnityWebRequest _www = task.Value;
if (!_www.isDone)
{
tmpSize += (long)Math.Max(0,
_www.downloadedBytes); //the UnityWebRequest.downloadedProgress has a bug in android platform
continue;
}
progressInfo.CompletedCount += 1;
tasks.RemoveAt(j);
downloadedSize += _info.FileSize;
if (_www.isNetworkError || _www.isHttpError)
{
promise.SetException(new Exception(_www.error));
Log.Error(
$"Downloads file '{_info.FileInfo.FullName}' failure from the address '{(_info.Path)}'.Reason:{_www.error}");
_www.Dispose();
try
{
foreach (var kv in tasks)
{
kv.Value.Dispose();
}
}
catch (Exception)
{
}
yield break;
}
_www.Dispose();
}
progressInfo.CompletedSize = downloadedSize + tmpSize;
promise.UpdateProgress(progressInfo);
yield return(null);
}
}
promise.SetResult(infos);
}
