private void Send(IAsyncResult res)
{
if (!C.Work || !Work)
{
return;
}
C.Send(new KeepAliveC5A());
Thread.Sleep(5000);
async.BeginInvoke(null, null, null);
}
private void SetComplete(Exception ex, int bytesRead)
{
lock (locker)
{
if (isCompleted)
{
return;
}
isCompleted = true;
asyncException = ex;
this.bytesRead = bytesRead;
// If the wait handle isn't null, we should set the event
// rather than fire a callback
if (asyncWaitHandle != null)
{
asyncWaitHandle.Set();
}
}
// If we have a callback method, invoke it
if (userCallback != null)
{
userCallback.BeginInvoke(this, null, null);
}
}
private void StartReceivingData()
{
fLastDataAction = DateTime.Now.Ticks;
fActive = true;
fMyListener.MyExtasysTCPServer.OnClientConnect(this);
try
{
fConnection.BeginReceive(fReadBuffer, 0, fReadBufferSize, SocketFlags.None, new AsyncCallback(StreamReceiver), null);
if (fConnection.SendTimeout > 0)
{
AsyncCallback call = new AsyncCallback(CheckConnectionTimeOut);
call.BeginInvoke(null, call, null);
}
}
catch (ArgumentNullException argumentNullException) // Buffer is a null reference.
{
DisconnectMe();
}
catch (SocketException socketException) // An error occurred when attempting to access the socket.
{
DisconnectMe();
}
catch (ObjectDisposedException objectDisposedException) // Socket has been closed.
{
DisconnectMe();
}
catch (ArgumentOutOfRangeException argumentOutOfRangeException) // Offset is less than 0.
{
DisconnectMe();
}
catch (Exception ex)
{
}
}
BeginWrite(byte [] buffer, int offset, int count, AsyncCallback callback, object state)
{
if (!CanWrite)
{
throw new NotSupportedException("This stream does not support writing");
}
// Creating a class derived from Stream that doesn't override BeginWrite
// shows that it actually calls Write and does everything synchronously except
// when invoking the callback, which is done from the ThreadPool.
// Just put this in the Write override:
// Console.WriteLine ("Write");
// Console.WriteLine (Environment.StackTrace);
// Thread.Sleep (10000);
StreamAsyncResult result = new StreamAsyncResult(state);
try {
Write(buffer, offset, count);
result.SetComplete(null);
} catch (Exception e) {
result.SetComplete(e);
}
if (callback != null)
{
callback.BeginInvoke(result, null, null);
}
return(result);
}
/// <include file='doc\Stream.uex' path='docs/doc[@for="Stream.BeginWrite"]/*' />
public virtual IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, Object state)
{
if (!CanWrite)
{
__Error.WriteNotSupported();
}
// To avoid a race with a stream's position pointer & generating race
// conditions with internal buffer indexes in our own streams that
// don't natively support async IO operations when there are multiple
// async requests outstanding, we will block the application's main
// thread and do the IO synchronously.
SynchronousAsyncResult asyncResult = new SynchronousAsyncResult(state, true);
try {
Write(buffer, offset, count);
asyncResult._isCompleted = true;
asyncResult._waitHandle.Set();
}
catch (IOException e) {
asyncResult._exception = e;
}
if (callback != null)
{
callback.BeginInvoke(asyncResult, null, null);
}
return(asyncResult);
}
public void BeginInvokeTest()
{
AsyncCallback c = delegate { };
Assert.Throws <NotSupportedException> (() => c.BeginInvoke(null, null, null), "#1");
Assert.Throws <NotSupportedException> (() => c.EndInvoke(null), "#2");
}
public void OnCompletedAsync()
{
IsCompleted = true;
if (Cb != null)
{
Cb.BeginInvoke(this, result => Cb.EndInvoke(result), null);
}
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback,
object state)
{
_event.Reset();
AsyncRes res = new AsyncRes(buffer, offset, count);
callback.BeginInvoke(res, null, state);
return(res);
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// asynccallback.BeginInvoke(ar, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this AsyncCallback asynccallback, IAsyncResult ar, AsyncCallback callback)
{
if (asynccallback == null)
{
throw new ArgumentNullException("asynccallback");
}
return(asynccallback.BeginInvoke(ar, callback, null));
}
internal void CompleteRequest(long resultCode)
{
Result = resultCode;
_timeStarted.Stop();
_asyncWaitHandle.Set();
if (_callback != null)
{
_callback.BeginInvoke(this, ar => _callback.EndInvoke(ar), null);
}
}
internal static IAsyncResult DoBeginRead(byte[] buffer, int offset, int size, AsyncCallback callback, object state, byte[] messageBytes)
{
for (int i = 0; i < messageBytes.Length; i++)
{
buffer[i] = messageBytes[i];
}
var ar = MockRepository.GenerateStub<IAsyncResult>();
ar.Stub(x => x.AsyncState).Return(state);
callback.BeginInvoke(ar, null, null);
return ar;
}
internal static IAsyncResult DoBeginRead(byte[] buffer, int offset, int size, AsyncCallback callback, object state, byte[] messageBytes)
{
for (int i = 0; i < messageBytes.Length; i++)
{
buffer[i] = messageBytes[i];
}
var ar = MockRepository.GenerateStub <IAsyncResult>();
ar.Stub(x => x.AsyncState).Return(state);
callback.BeginInvoke(ar, null, null);
return(ar);
}
internal void Complete()
{
lock (_sync) {
if (_completed)
{
return;
}
_completed = true;
if (_waitHandle != null)
{
_waitHandle.Set();
}
if (_callback != null)
{
_callback.BeginInvoke(this, ar => _callback.EndInvoke(ar), null);
}
}
}
public void Set()
{
if (_event.IsSet)
{
return;
}
_event.Set();
if (_callback != null)
{
_callback.BeginInvoke(this, OnAsyncCallbackComplete, null);
}
}
public void Complete()
{
lock (_locker)
{
if (_completed)
{
return;
}
_completed = true;
_handle?.Set();
Callback?.BeginInvoke(this, null, null);
}
}
public void Complete()
{
lock (locker)
{
if (!completed)
{
completed = true;
if (handle != null)
{
handle.Set();
}
if (Callback != null)
{
Callback.BeginInvoke(this, null, null);
}
}
}
}
public void SetComplete(Exception ex)
{
lock (locker)
{
if (!completed)
{
completed = true;
if (handle != null)
{
handle.Set();
}
if (_userCallback != null)
{
_userCallback.BeginInvoke(this, null, null);
}
_asyncException = ex;
}
}
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback asyncCallback, object state)
{
if (_nextLength < 1)
{
CustomeAsyncResult customeAsyncResult = new CustomeAsyncResult(state);
customeAsyncResult.RealRecvSize = (-1);
customeAsyncResult.IsCompleted = (true);
customeAsyncResult.RecvBuffer = (buffer);
customeAsyncResult.RecvLength = (count);
customeAsyncResult.RecvOffset = (offset);
customeAsyncResult.UserCallbackFunc = (asyncCallback);
((AutoResetEvent)customeAsyncResult.AsyncWaitHandle).Set();
if (asyncCallback != null)
{
asyncCallback.BeginInvoke(customeAsyncResult, null, null);
}
return(customeAsyncResult);
}
return(_base.BeginRead(buffer, offset, count, asyncCallback, state));
}
private void SetComplete(Exception ex, byte[] resultingBuffer)
{
lock (locker)
{
if (!completed)
{
completed = true;
_asyncException = ex;
_resultingBuffer = resultingBuffer;
if (handle != null)
{
handle.Set();
}
if (_userCallback != null)
{
_userCallback.BeginInvoke(this, null, null);
}
}
}
}
private void SetComplete(Exception ex, int bytesRead)
{
lock (locker) {
if (completed)
{
return;
}
completed = true;
_asyncException = ex;
_bytesRead = bytesRead;
if (handle != null)
{
handle.Set();
}
}
if (_userCallback != null)
{
_userCallback.BeginInvoke(this, null, null);
}
}
public void Complete()
{
lock (_locker)
{
if (_completed)
{
return;
}
_completed = true;
if (_handle != null)
{
_handle.Set();
}
if (_callback != null)
{
_callback.BeginInvoke(this, null, null);
}
}
}
/// <summary>
/// Set async operation as completed.
/// </summary>
public void SetComplete()
{
lock (_lock)
{
if (_isDisposed)
{
return;
}
if (!_isCompleted)
{
_isCompleted = true;
_callback?.BeginInvoke(this, delegate(IAsyncResult ar)
{
_callback.EndInvoke(ar);
}, null);
if (!_waitHandle.Set())
{
throw new KsiException("WaitHandle completion failed.");
}
}
}
}
/// <summary>Begins an asynchronous write operation.</summary>
/// <returns>An IAsyncResult that represents the asynchronous write, which could still be pending.</returns>
/// <param name="buffer">The buffer to write data from. </param>
/// <param name="offset">The byte offset in <paramref name="buffer" /> from which to begin writing. </param>
/// <param name="count">The maximum number of bytes to write. </param>
/// <param name="callback">An optional asynchronous callback, to be called when the write is complete. </param>
/// <param name="state">A user-provided object that distinguishes this particular asynchronous write request from other requests. </param>
/// <exception cref="T:System.IO.IOException">Attempted an asynchronous write past the end of the stream, or a disk error occurs. </exception>
/// <exception cref="T:System.ArgumentException">One or more of the arguments is invalid. </exception>
/// <exception cref="T:System.ObjectDisposedException">Methods were called after the stream was closed. </exception>
/// <exception cref="T:System.NotSupportedException">The current Stream implementation does not support the write operation. </exception>
/// <filterpriority>2</filterpriority>
public virtual IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object state)
{
if (!this.CanWrite)
{
throw new NotSupportedException("This stream does not support writing");
}
StreamAsyncResult streamAsyncResult = new StreamAsyncResult(state);
try
{
this.Write(buffer, offset, count);
streamAsyncResult.SetComplete(null);
}
catch (Exception complete)
{
streamAsyncResult.SetComplete(complete);
}
if (callback != null)
{
callback.BeginInvoke(streamAsyncResult, null, null);
}
return(streamAsyncResult);
}
private void Connection_Disconnected(object sender, EventArgs e)
{
if (Enabled)
{
Status = ReloginStatus.Relogin;
ReloginEventArgs args = new ReloginEventArgs(LastLoginTime, ReloginInterval, ReconnectInterval);
if (OnReconnect != null)
{
OnReconnect(this, args);
}
Sleep = args.Sleep;
NextLoginTime = args.NextLoginTime;
asyncRelogin.BeginInvoke(null, null, null);
ReconnectCount++;
}
else
{
Status = ReloginStatus.Disconnected;
}
}
public override IAsyncResult BeginRead(byte[] buffer, int offset, int count, AsyncCallback callback,
object state)
{
_event.Reset();
AsyncRes res = new AsyncRes(buffer, offset, count);
callback.BeginInvoke(res, null, state);
return res;
}
/// <summary>
/// This method is called after the transport-server handshake is confirmed. This method starts the listening process.
/// </summary>
/// <param name="context">The transport context.</param>
/// <param name="job">The job.</param>
/// <param name="Data">The request/response data.</param>
/// <returns>Returns false is the listening process has started successfully.</returns>
public override bool ListenConfirm(TransportContext context, SecurityManagerJob job, RQRSContract<TransportCommandRequest, TransportCommandResponse> Data)
{
TransportContextTCPIP tcpContext = context as TransportContextTCPIP;
if (tcpContext == null)
{
Data.Response.Status = CH.HTTPCodes.ServiceUnavailable_503;
return true;
}
Uri location = tcpContext.Location;
//Ok, validate the IP address
IPAddress address;
if (!IPAddress.TryParse(location.Host, out address))
{
if (location.Host.ToLowerInvariant() != "localhost")
{
Data.Response.Status = CH.HTTPCodes.BadRequest_400;
Data.Response.Substatus = string.Format("Location '{0}' is not a valid listening address.", location.Host);
return true;
}
address = IPAddress.Loopback;
}
IPEndPoint EndPoint = new IPEndPoint(address, location.Port);
try
{
Socket listeningSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//We need to start listening on the appropriate ports and IP addresses
listeningSocket.Bind(EndPoint);
//Start the socket listening, the cnLISTENQUEUE is the number of items we allow
//in the connection queue
listeningSocket.Listen(tcpContext.ListenerQueueLength);
//tcpContext.LocalEndPoint = EndPoint;
tcpContext.ActiveSocket = listeningSocket;
//Ok, we need to shunt off the listening duties to another thread so that we can returns to
//the server on this thread.
AsyncCallback startListening = new AsyncCallback(tcpContext.ListenerStart);
startListening.BeginInvoke(null, null, null);
Data.Response.Status = CH.HTTPCodes.OK_200;
return false;
}
catch (SocketException socex)
{
Data.Response.Status = CH.HTTPCodes.BadRequest_400;
Data.Response.Substatus = string.Format("The socket threw an exception {0}:{1} ({2})", socex.ErrorCode, socex.SocketErrorCode, socex.Message);
return true;
}
catch (ObjectDisposedException obex)
{
Data.Response.Status = CH.HTTPCodes.InternalServerError_500;
Data.Response.Substatus = string.Format("The socket threw an object disposed exception {0}", obex.Message);
return true;
}
catch (Exception ex)
{
Data.Response.Status = CH.HTTPCodes.InternalServerError_500;
Data.Response.Substatus = string.Format("An unhandeled exception was caught {0}/{1}", ex.GetType().ToString(), ex.Message);
return true;
}
}
private void StartReceivingData()
{
fLastDataAction = DateTime.Now.Ticks;
fActive = true;
fMyListener.MyExtasysTCPServer.OnClientConnect(this);
try
{
fConnection.BeginReceive(fReadBuffer, 0, fReadBufferSize, SocketFlags.None, new AsyncCallback(StreamReceiver), null);
if (fConnection.SendTimeout > 0)
{
AsyncCallback call = new AsyncCallback(CheckConnectionTimeOut);
call.BeginInvoke(null, call, null);
}
}
catch (ArgumentNullException argumentNullException) // Buffer is a null reference.
{
DisconnectMe();
}
catch (SocketException socketException) // An error occurred when attempting to access the socket.
{
DisconnectMe();
}
catch (ObjectDisposedException objectDisposedException) // Socket has been closed.
{
DisconnectMe();
}
catch (ArgumentOutOfRangeException argumentOutOfRangeException) // Offset is less than 0.
{
DisconnectMe();
}
catch (Exception ex)
{
}
}
private IAsyncResult BeginPagesListRequest(object sender, EventArgs e, AsyncCallback cb, object state)
{
IAsyncResult ar = null;
List <string> pages = new List <string>();
try {
if (lstWiki.SelectedValue.ToUpperInvariant() == "MEDIA")
{
//Download all namespaces
string url = txtWikiUrl.Text + "?title=Special:Allpages&namespace=0";
List <string> namespaces = GetNamespaces(PageRequest(url));
//Download list of pages
for (int k = 0; k < namespaces.Count; k = k + 2)
{
string pageText = PageRequest(txtWikiUrl.Text + "?title=Special:Allpages&namespace=" + namespaces[k]);
Regex allPagesTable = new Regex(@"(?<=(\<table\ class=\'allpageslist\'([^>])*?)\>)(.|\s)+?(?=(\<\/table\>))");
Match table = allPagesTable.Match(pageText);
if (table.Success)
{
string tableStr = table.Value;
Regex allPagesData = new Regex(@"(?<=(\<a([^>])*?)\>)(.|\s)+?(?=(\<\/a\>))");
Match data = allPagesData.Match(tableStr);
int i = 2;
while (data.Success)
{
i++;
if (i == 3)
{
pages.AddRange(PartialList(PageRequest(txtWikiUrl.Text + "?title=Special:Allpages&from=" + data.Value + "&namespace=" + namespaces[k]), namespaces[k + 1]));
i = 0;
}
tableStr = tableStr.Substring(data.Index + data.Length + 5);
data = allPagesData.Match(tableStr);
}
}
else
{
pages.AddRange(PartialList(pageText, namespaces[k + 1]));
}
}
}
else
{
string pageText = null;
if (txtWikiUrl.Text.EndsWith("/"))
{
pageText = PageRequest(txtWikiUrl.Text + @"search.aspx?search=&namespace=%5BAll%5D");
}
else
{
pageText = PageRequest(txtWikiUrl.Text + @"/search.aspx?search=&namespace=%5BAll%5D");
}
Regex pageTitle = new Regex(@"<div class='searchHitHead'>(.|\s)+?</div>");
Match match = pageTitle.Match(pageText);
while (match.Success)
{
pages.Add(match.Value.Substring(37, match.Value.IndexOf('"', 37) - 37));
match = pageTitle.Match(pageText, match.Index + match.Length - 1);
}
}
pageList.Items.Clear();
for (int i = 0; i < pages.Count; i++)
{
pageList.Items.Add(new ListItem(pages[i], pages[i]));
pageList.Items[i].Selected = true;
}
if (pages.Count > 1000)
{
pageList.Visible = false;
pageList_div.Visible = false;
lblPageList.Text = "Too many pages. Click Translate button to import whole wiki.";
}
else
{
pageList.Visible = true;
pageList_div.Visible = true;
lblPageList.Text = "To exclude pages, uselect them";
}
}
catch (WebException) {
pageList.Visible = false;
pageList_div.Visible = false;
btnTranslateAll.Visible = false;
lblPageList.Text = "Web Exception";
}
return(cb.BeginInvoke(ar, cb, null));
}
private IAsyncResult PageDownload(object sender, EventArgs e, AsyncCallback ac, object state)
{
IAsyncResult ar = null;
return(ac.BeginInvoke(ar, ac, null));
}
private IAsyncResult PageDownload(object sender, EventArgs e, AsyncCallback ac, object state) {
IAsyncResult ar = null;
return ac.BeginInvoke(ar, ac, null);
}
private IAsyncResult BeginPagesListRequest(object sender, EventArgs e, AsyncCallback cb, object state) {
IAsyncResult ar = null;
List<string> pages = new List<string>();
try {
if(lstWiki.SelectedValue.ToUpperInvariant() == "MEDIA") {
//Download all namespaces
string url = txtWikiUrl.Text + "?title=Special:Allpages&namespace=0";
List<string> namespaces = GetNamespaces(PageRequest(url));
//Download list of pages
for(int k = 0; k < namespaces.Count; k = k + 2) {
string pageText = PageRequest(txtWikiUrl.Text + "?title=Special:Allpages&namespace=" + namespaces[k]);
Regex allPagesTable = new Regex(@"(?<=(\<table\ class=\'allpageslist\'([^>])*?)\>)(.|\s)+?(?=(\<\/table\>))");
Match table = allPagesTable.Match(pageText);
if(table.Success) {
string tableStr = table.Value;
Regex allPagesData = new Regex(@"(?<=(\<a([^>])*?)\>)(.|\s)+?(?=(\<\/a\>))");
Match data = allPagesData.Match(tableStr);
int i = 2;
while(data.Success) {
i++;
if(i == 3) {
pages.AddRange(PartialList(PageRequest(txtWikiUrl.Text + "?title=Special:Allpages&from=" + data.Value + "&namespace=" + namespaces[k]), namespaces[k + 1]));
i = 0;
}
tableStr = tableStr.Substring(data.Index + data.Length + 5);
data = allPagesData.Match(tableStr);
}
}
else
pages.AddRange(PartialList(pageText, namespaces[k + 1]));
}
}
else {
string pageText = null;
if(txtWikiUrl.Text.EndsWith("/")) pageText = PageRequest(txtWikiUrl.Text + @"search.aspx?search=&namespace=%5BAll%5D");
else pageText = PageRequest(txtWikiUrl.Text + @"/search.aspx?search=&namespace=%5BAll%5D");
Regex pageTitle = new Regex(@"<div class='searchHitHead'>(.|\s)+?</div>");
Match match = pageTitle.Match(pageText);
while(match.Success) {
pages.Add(match.Value.Substring(37, match.Value.IndexOf('"', 37) - 37));
match = pageTitle.Match(pageText, match.Index + match.Length - 1);
}
}
pageList.Items.Clear();
for(int i = 0; i < pages.Count; i++) {
pageList.Items.Add(new ListItem(pages[i], pages[i]));
pageList.Items[i].Selected = true;
}
if(pages.Count > 1000) {
pageList.Visible = false;
pageList_div.Visible = false;
lblPageList.Text = "Too many pages. Click Translate button to import whole wiki.";
}
else {
pageList.Visible = true;
pageList_div.Visible = true;
lblPageList.Text = "To exclude pages, uselect them";
}
}
catch(WebException) {
pageList.Visible = false;
pageList_div.Visible = false;
btnTranslateAll.Visible = false;
lblPageList.Text = "Web Exception";
}
return cb.BeginInvoke(ar, cb, null);
}
/// <summary>
/// 打印领料单
/// </summary>
/// <param name="main"></param>
/// <param name="list"></param>
public void SendIOPrint(WH_IOMain main, IEnumerable <WH_IOItem> list)
{
string path = HttpContext.Current.Server.MapPath("~/CrReport/Rpt_Ticket_Picking.rpt");
AsyncCallback callback = delegate
{
ReportDocument rptDocument = new ReportDocument();
rptDocument.Load(path);
QX.BLL.Bll_Comm comInstance = new QX.BLL.Bll_Comm();
//ParameterDiscreteValue crParameterDiscreteValue;
//ParameterField crParameterField;
//ParameterFields crParameterFields;
//crParameterFields = new ParameterFields();
////工程名称
//crParameterDiscreteValue = new ParameterDiscreteValue();
//crParameterDiscreteValue.Value = main.WHIOM_Code;
//crParameterField = new ParameterField();
//crParameterField.ParameterFieldName = "WHIOM_Code";
//crParameterField.CurrentValues.Add(crParameterDiscreteValue);
//crParameterFields.Add(crParameterField);
////工程名称
//crParameterDiscreteValue = new ParameterDiscreteValue();
//crParameterDiscreteValue.Value = main.WHIOM_RDate;
//crParameterField = new ParameterField();
//crParameterField.ParameterFieldName = "WHIOM_RDate";
//crParameterField.CurrentValues.Add(crParameterDiscreteValue);
//crParameterFields.Add(crParameterField);
////工程名称
//crParameterDiscreteValue = new ParameterDiscreteValue();
//crParameterDiscreteValue.Value = main.WHIOM_Department;
//crParameterField = new ParameterField();
//crParameterField.ParameterFieldName = "WHIOM_Code";
//crParameterField.CurrentValues.Add(crParameterDiscreteValue);
//crParameterFields.Add(crParameterField);
////工程名称
//crParameterDiscreteValue = new ParameterDiscreteValue();
//crParameterDiscreteValue.Value = main.WHIOM_Owner;
//crParameterField = new ParameterField();
//crParameterField.ParameterFieldName = "WHIOM_Owner";
//crParameterField.CurrentValues.Add(crParameterDiscreteValue);
//crParameterFields.Add(crParameterField);
//crParameterDiscreteValue = new ParameterDiscreteValue();
//crParameterDiscreteValue.Value = main.WHIOM_BOwner;
//crParameterField = new ParameterField();
//crParameterField.ParameterFieldName = "WHIOM_BOwner";
//crParameterField.CurrentValues.Add(crParameterDiscreteValue);
//crParameterFields.Add(crParameterField);
////foreach (ParameterField p in crParameterFields)
////{
//// rptDocument.SetParameterValue(p.ParameterFieldName, p.CurrentValues[0]);
////}
System.Data.DataTable dt = new System.Data.DataTable();
dt = comInstance.ListViewData(string.Format("select * from VRpt_IOItem where WHIOI_MainCode='{0}'", main.WHIOM_Code));
rptDocument.SetDataSource(list);
rptDocument.SetParameterValue("WHIOM_Department", main.WHIOM_Department);
rptDocument.SetParameterValue("WHIOM_Code", main.WHIOM_Code);
rptDocument.SetParameterValue("WHIOM_Owner", main.WHIOM_Owner);
rptDocument.SetParameterValue("WHIOM_BOwner", main.WHIOM_BOwner);
rptDocument.SetParameterValue("WHIOM_RDate", main.WHIOM_RDate);
rptDocument.PrintToPrinter(1, false, 0, 0); //开始打印所有页
};
callback.BeginInvoke(null, null, null);
}
BeginWrite (byte [] buffer, int offset, int count, AsyncCallback callback, object state)
{
if (!CanWrite)
throw new NotSupportedException ("This stream does not support writing");
// Creating a class derived from Stream that doesn't override BeginWrite
// shows that it actually calls Write and does everything synchronously except
// when invoking the callback, which is done from the ThreadPool.
// Just put this in the Write override:
// Console.WriteLine ("Write");
// Console.WriteLine (Environment.StackTrace);
// Thread.Sleep (10000);
StreamAsyncResult result = new StreamAsyncResult (state);
try {
Write (buffer, offset, count);
result.SetComplete (null);
} catch (Exception e) {
result.SetComplete (e);
}
if (callback != null)
callback.BeginInvoke (result, null, null);
return result;
}
/// <summary>
/// 发送数据到指定终端
/// </summary>
/// <param name="sendObj"></param>
/// <param name="_sendCallback">发送后的回调函数</param>
public void Send(SendClientObject sendObj,AsyncCallback _sendCallback)
{
lock (sendObj.stateObject.sendLockObj)
{
var data = sendObj.txData.GetData();
try
{
sendObj.stateObject.workSocket.BeginSend(data, 0, data.Length, SocketFlags.None, p =>
{
try
{
sendObj.stateObject.workSocket.EndSend(p);
sendObj.IsSendOK = true;
}
catch(Exception ex) {
sendObj.IsSendOK = false;
sendObj.ErrMsg = ex.Message;
if (ClientErrorEvent != null)
{
ClientErrorEvent.BeginInvoke(sendObj.stateObject, ex.Message, null, null);
}
}
if (_sendCallback != null)
{
_sendCallback.BeginInvoke((IAsyncResult)sendObj, null, null);
}
}, sendObj);
}
catch (Exception ex)
{
sendObj.IsSendOK = false;
sendObj.ErrMsg = ex.Message;
if (ClientErrorEvent != null)
{
ClientErrorEvent.BeginInvoke(sendObj.stateObject, ex.Message, null, null);
}
if (_sendCallback != null)
{
_sendCallback.BeginInvoke((IAsyncResult)sendObj, null, null);
}
}
}
}
/// <include file='doc\Stream.uex' path='docs/doc[@for="Stream.BeginWrite"]/*' />
public virtual IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, Object state)
{
if (!CanWrite) __Error.WriteNotSupported();
// To avoid a race with a stream's position pointer & generating race
// conditions with internal buffer indexes in our own streams that
// don't natively support async IO operations when there are multiple
// async requests outstanding, we will block the application's main
// thread and do the IO synchronously.
SynchronousAsyncResult asyncResult = new SynchronousAsyncResult(state, true);
try {
Write(buffer, offset, count);
asyncResult._isCompleted = true;
asyncResult._waitHandle.Set();
}
catch (IOException e) {
asyncResult._exception = e;
}
if (callback != null)
callback.BeginInvoke(asyncResult, null, null);
return asyncResult;
}
