protected IEnumerator DownloadWholeFile(FileURL _fileUrl, int _windowSize)
{
int rfsize = -1; // remote file size
int lfsize = -1; // local file size
var pd = UnityWebRequestHelper.DownloadProcess.BeforeProcess;
//check remote file status
StartCoroutine(DownloadBehaviourCheck(_fileUrl,
(UnityWebRequestHelper.DownloadProcess _dp, int _local, int _remote) =>
{
pd = _dp;
rfsize = _remote;
lfsize = _local;
}
));
// wait until DownloadBehaviourCheck finished
while (pd == UnityWebRequestHelper.DownloadProcess.BeforeProcess)
{
yield return(null);
}
Debug.LogFormat("remote file size {0}; local file size {1}; Next Process will be {2}", rfsize, lfsize, pd);
switch (pd)
{
case UnityWebRequestHelper.DownloadProcess.RedownloadFromBeginning:
myFileIOHelper.Remove(_fileUrl.localPath); //Delete TargetFile first
lfsize = -1;
break;
case UnityWebRequestHelper.DownloadProcess.Resume: //just keep doing
break;
case UnityWebRequestHelper.DownloadProcess.DoNothing:
default:
Debug.Log("Do Nothing");
yield break;
}
// ONLY ONE of this DownloadWholeFile() can be processed at any given time
if (downloading)
{
yield return(new WaitForSeconds(1f));
}
downloading = true;
for (int i = lfsize + 1; i < rfsize; i += _windowSize)
{
yield return(StartCoroutine(
myUnityWebRequestHelper.DownloadParts(
(byte[] _bytes) => {
myFileIOHelper.AppendTo(_fileUrl.localPath, _bytes);
myProgressDelegate((float)i / (float)rfsize);
}, _fileUrl.fullURL, i, _windowSize)
));
}
myProgressDelegate(1);
downloading = false;
}
public void TestMethodAppendTo()
{
FileIOHelper fileIOHelper = new FileIOHelper();
byte[] bytess = new byte[] { 1, 2, 3, 4, 5, 6, 7 };
string filepath = @"d:\123.546";
int fileSize = fileIOHelper.CheckFileSize(filepath);
fileIOHelper.AppendTo(filepath, bytess);
Console.WriteLine("Append to d:\\123.546 from " + fileSize);
Assert.AreEqual <int>(fileSize + 7, fileIOHelper.CheckFileSize(filepath));
System.IO.Stream st = new System.IO.MemoryStream(new byte[] { 5, 4, 3, 2, 1 });
fileSize = fileIOHelper.CheckFileSize(filepath);
fileIOHelper.AppendTo(filepath, st);
Console.WriteLine("Append to d:\\123.546");
Assert.AreEqual <int>(fileSize + 5, fileIOHelper.CheckFileSize(filepath));
}