private static extern IntPtr ManagedOutputStream_Create(
WriteDelegate write,
TellDelegate tell,
FlushDelegate flush,
CloseDelegate close,
ClosedDelegate closed,
out IntPtr outputStream);
/// <summary>
/// 释放由 System.IO.Stream 占用的非托管资源，还可以另外再释放托管资源。
/// </summary>
/// <param name="disposing">为 true，则释放托管资源和非托管资源；为 false，则仅释放非托管资源。</param>
protected override void Dispose(bool disposing)
{
base.Dispose(disposing);
if (disposing)
{
_writeAction = null;
_flushAction = null;
}
}
private static ParquetHandle Create(
WriteDelegate write,
TellDelegate tell,
FlushDelegate flush,
CloseDelegate close,
ClosedDelegate closed)
{
ExceptionInfo.Check(ManagedOutputStream_Create(write, tell, flush, close, closed, out var handle));
return(new ParquetHandle(handle, OutputStream_Free));
}
//--- Constructors ---
public AutoFlushContainer(T initialState, FlushDelegate flush, int maxUpdates, TimeSpan autoFlushDelay, TaskTimerFactory timerFactory)
{
if (flush == null)
{
throw new ArgumentNullException("flush");
}
if (maxUpdates <= 0)
{
throw new ArgumentException("maxItems must be positive", "maxUpdates");
}
if (autoFlushDelay <= TimeSpan.Zero)
{
throw new ArgumentException("maxDelay must be positive", "autoFlushDelay");
}
_state = initialState;
_flush = flush;
_maxUpdates = maxUpdates;
_autoFlushDelay = autoFlushDelay;
_autoFlushTimer = timerFactory.New(DateTime.MaxValue, AutoFlushCallback, null, TaskEnv.None);
}
public static void ProcessClientBigRequest(string ConnString, Stream requestStream, Stream responseStream, bool dispose, FlushDelegate flushDelegate, TaskLoggingHelper log)
{
XmlTextReader xr = new XmlTextReader(requestStream);
XmlTextWriter xw = new XmlTextWriter(responseStream, Encoding.UTF8);
xw.WriteStartDocument();
xw.WriteStartElement("table");
bool first = true;
//using (xr)
//{
xr.Read();
xr.Read();
xr.ReadStartElement("request");
while (xr.Name == "id")
{
int serviceTableID = Convert.ToInt32(xr.ReadElementString("id"));
ServiceTable st = DAO.GetServiceTable(ConnString, serviceTableID);
if (first)
{
if (log != null)
log.LogMessage("Processing ID " + serviceTableID.ToString() + " response " + st.ServiceTableID.ToString());
first = false;
}
xw.WriteStartElement("record");
xw.WriteElementString("ServiceTableID", st.ServiceTableID.ToString());
xw.WriteElementString("DescServiceTable", st.DescServiceTable);
xw.WriteElementString("Value", st.Value.ToString("0.00"));
xw.WriteElementString("CreationDate", st.CreationDate.ToString("dd/MM/yyyy hh:mm:ss"));
xw.WriteElementString("StringField1", st.StringField1);
xw.WriteElementString("StringField2", st.StringField2);
xw.WriteEndElement();
if (flushDelegate != null)
flushDelegate();
}
xr.ReadEndElement();
//}
xr.Dispose();
xw.WriteEndElement();
xw.Flush();
if (dispose)
xw.Close();
}
public static void ProcessClientBigRequest(string ConnString, Stream requestStream, Stream responseStream, bool dispose, FlushDelegate flushDelegate)
{
StreamUtil.ProcessClientBigRequest(ConnString, requestStream, responseStream, dispose, flushDelegate, null);
}
/// <summary>
/// 创建HttpOutputStream实例。
/// </summary>
/// <param name="writeAction">写入流委托。</param>
/// <param name="flushAction">Flush流委托。</param>
public HttpOutputStream(WriteDelegate writeAction, FlushDelegate flushAction)
{
_writeAction = writeAction;
_flushAction = flushAction;
}