public override void Update(float elapseSeconds, float realElapseSeconds)
{
if (m_UnityWebRequest == null)
{
return;
}
if (!m_UnityWebRequest.isDone)
{
return;
}
bool isError = false;
#if UNITY_2017_1_OR_NEWER
isError = m_UnityWebRequest.isNetworkError || m_UnityWebRequest.isHttpError;
#else
isError = m_UnityWebRequest.isError;
#endif
if (isError)
{
DownloadAgentHelperErrorEventArgs downloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(m_UnityWebRequest.responseCode == RangeNotSatisfiableErrorCode, m_UnityWebRequest.error);
m_DownloadAgentHelperErrorEventHandler(this, downloadAgentHelperErrorEventArgs);
ReferencePool.Release(downloadAgentHelperErrorEventArgs);
}
else
{
//DownloadAgentHelperProgressEventArgs downloadAgentHelperProgressEventArgs = DownloadAgentHelperProgressEventArgs.Create(1.0f);
//m_DownloadAgentHelperProgressEventHandler(this, downloadAgentHelperProgressEventArgs);
//ReferencePool.Release(downloadAgentHelperProgressEventArgs);
DownloadAgentHelperCompleteEventArgs downloadAgentHelperCompleteEventArgs = DownloadAgentHelperCompleteEventArgs.Create((int)m_UnityWebRequest.downloadedBytes);
m_DownloadAgentHelperCompleteEventHandler(this, downloadAgentHelperCompleteEventArgs);
ReferencePool.Release(downloadAgentHelperCompleteEventArgs);
}
}
private void OnDownloadAgentHelperUpdateBytes(object sender, DownloadAgentHelperUpdateBytesEventArgs e)
{
m_WaitTime = 0f;
try
{
m_FileStream.Write(e.GetBytes(), e.Offset, e.Length);
m_WaitFlushSize += e.Length;
m_SavedLength += e.Length;
if (m_WaitFlushSize >= m_Task.FlushSize)
{
m_FileStream.Flush();
m_WaitFlushSize = 0;
}
}
catch (Exception exception)
{
DownloadAgentHelperErrorEventArgs downloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(false, exception.ToString());
OnDownloadAgentHelperError(this, downloadAgentHelperErrorEventArgs);
ReferencePool.Release(downloadAgentHelperErrorEventArgs);
}
}
/// <summary>
/// 开始处理下载任务。
/// </summary>
/// <param name="task">要处理的下载任务。</param>
/// <returns>开始处理任务的状态。</returns>
public void Start(DownloadTask task)
{
if (task == null)
{
Debug.LogError("Task is invalid.");
}
m_Task = task;
m_Task.Status = DownloadTaskStatus.Doing;
string downloadFile = string.Format("{0}.download", m_Task.DownloadPath);
try
{
if (File.Exists(downloadFile))
{
m_FileStream = File.OpenWrite(downloadFile);
m_FileStream.Seek(0, SeekOrigin.End);
m_StartLength = m_SavedLength = (int)m_FileStream.Length;
m_DownloadedLength = 0;
}
else
{
string directory = Path.GetDirectoryName(m_Task.DownloadPath);
if (!Directory.Exists(directory))
{
Directory.CreateDirectory(directory);
}
m_FileStream = new FileStream(downloadFile, FileMode.Create, FileAccess.Write);
m_StartLength = m_SavedLength = m_DownloadedLength = 0;
}
if (DownloadAgentStart != null)
{
DownloadAgentStart(this);
}
if (m_StartLength > 0)
{
m_Helper.Download(m_Task.DownloadUri, m_StartLength, m_Task.UserData);
}
else
{
m_Helper.Download(m_Task.DownloadUri, m_Task.UserData);
}
//return StartTaskStatus.CanResume;
}
catch (Exception exception)
{
Debug.LogError(exception.Message);
DownloadAgentHelperErrorEventArgs downloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(false, exception.ToString());
OnDownloadAgentHelperError(this, downloadAgentHelperErrorEventArgs);
ReferencePool.Release(downloadAgentHelperErrorEventArgs);
//return StartTaskStatus.UnknownError;
}
}
/// <summary>
/// 下载代理轮询。
/// </summary>
/// <param name="elapseSeconds">逻辑流逝时间，以秒为单位。</param>
/// <param name="realElapseSeconds">真实流逝时间，以秒为单位。</param>
public void Update(float elapseSeconds, float realElapseSeconds)
{
if (m_Task.Status == DownloadTaskStatus.Doing)
{
m_WaitTime += realElapseSeconds;
if (m_WaitTime >= m_Task.Timeout)
{
DownloadAgentHelperErrorEventArgs downloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(false, "Timeout");
OnDownloadAgentHelperError(this, downloadAgentHelperErrorEventArgs);
ReferencePool.Release(downloadAgentHelperErrorEventArgs);
}
m_Helper.Update(elapseSeconds, realElapseSeconds);
}
}
private void Update()
{
if (m_WWW == null)
{
return;
}
int deltaLength = m_WWW.bytesDownloaded - m_LastDownloadedSize;
if (deltaLength > 0)
{
m_LastDownloadedSize = m_WWW.bytesDownloaded;
DownloadAgentHelperUpdateLengthEventArgs downloadAgentHelperUpdateLengthEventArgs = DownloadAgentHelperUpdateLengthEventArgs.Create(deltaLength);
m_DownloadAgentHelperUpdateLengthEventHandler(this, downloadAgentHelperUpdateLengthEventArgs);
ReferencePool.Release(downloadAgentHelperUpdateLengthEventArgs);
}
if (m_WWW == null)
{
return;
}
if (!m_WWW.isDone)
{
return;
}
if (!string.IsNullOrEmpty(m_WWW.error))
{
DownloadAgentHelperErrorEventArgs dodwnloadAgentHelperErrorEventArgs = DownloadAgentHelperErrorEventArgs.Create(m_WWW.error.StartsWith(RangeNotSatisfiableErrorCode.ToString()), m_WWW.error);
m_DownloadAgentHelperErrorEventHandler(this, dodwnloadAgentHelperErrorEventArgs);
ReferencePool.Release(dodwnloadAgentHelperErrorEventArgs);
}
else
{
byte[] bytes = m_WWW.bytes;
DownloadAgentHelperUpdateBytesEventArgs downloadAgentHelperUpdateBytesEventArgs = DownloadAgentHelperUpdateBytesEventArgs.Create(bytes, 0, bytes.Length);
m_DownloadAgentHelperUpdateBytesEventHandler(this, downloadAgentHelperUpdateBytesEventArgs);
ReferencePool.Release(downloadAgentHelperUpdateBytesEventArgs);
DownloadAgentHelperCompleteEventArgs downloadAgentHelperCompleteEventArgs = DownloadAgentHelperCompleteEventArgs.Create(bytes.Length);
m_DownloadAgentHelperCompleteEventHandler(this, downloadAgentHelperCompleteEventArgs);
ReferencePool.Release(downloadAgentHelperCompleteEventArgs);
}
}