samples/sockets/client.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        client.cpp
   3 // Purpose:     Client for wxSocket demo
   4 // Author:      Guillermo Rodriguez Garcia <guille@iies.es>
   5 // Modified by:
   6 // Created:     1999/09/19
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999 Guillermo Rodriguez Garcia
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ==========================================================================
  13 // declarations
  14 // ==========================================================================
  15
  16 // --------------------------------------------------------------------------
  17 // headers
  18 // --------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(__APPLE__)
  21     #pragma implementation
  22     #pragma interface
  23 #endif
  24
  25 // For compilers that support precompilation, includes "wx/wx.h".
  26 #include "wx/wxprec.h"
  27
  28 #ifdef __BORLANDC__
  29 #  pragma hdrstop
  30 #endif
  31
  32 // for all others, include the necessary headers
  33 #ifndef WX_PRECOMP
  34 #  include "wx/wx.h"
  35 #endif
  36
  37 #include "wx/socket.h"
  38 #include "wx/url.h"
  39 #include "wx/wfstream.h"
  40
  41 // --------------------------------------------------------------------------
  42 // resources
  43 // --------------------------------------------------------------------------
  44
  45 // the application icon
  46 #if defined(__WXGTK__) || defined(__WXX11__) || defined(__WXMOTIF__) || defined(__WXMAC__)
  47 #  include "mondrian.xpm"
  48 #endif
  49
  50 // --------------------------------------------------------------------------
  51 // classes
  52 // --------------------------------------------------------------------------
  53
  54 // Define a new application type
  55 class MyApp : public wxApp
  56 {
  57 public:
  58   virtual bool OnInit();
  59 };
  60
  61 // Define a new frame type: this is going to be our main frame
  62 class MyFrame : public wxFrame
  63 {
  64 public:
  65   MyFrame();
  66   ~MyFrame();
  67
  68   // event handlers for File menu
  69   void OnQuit(wxCommandEvent& event);
  70   void OnAbout(wxCommandEvent& event);
  71
  72   // event handlers for Socket menu
  73   void OnOpenConnection(wxCommandEvent& event);
  74   void OnTest1(wxCommandEvent& event);
  75   void OnTest2(wxCommandEvent& event);
  76   void OnTest3(wxCommandEvent& event);
  77   void OnCloseConnection(wxCommandEvent& event);
  78
  79 #if wxUSE_URL
  80   // event handlers for Protocols menu
  81   void OnTestURL(wxCommandEvent& event);
  82 #endif
  83
  84   // event handlers for DatagramSocket menu (stub)
  85   void OnDatagram(wxCommandEvent& event);
  86
  87   // socket event handler
  88   void OnSocketEvent(wxSocketEvent& event);
  89
  90   // convenience functions
  91   void UpdateStatusBar();
  92
  93 private:
  94   wxSocketClient *m_sock;
  95   wxTextCtrl     *m_text;
  96   wxMenu         *m_menuFile;
  97   wxMenu         *m_menuSocket;
  98   wxMenu         *m_menuDatagramSocket;
  99   wxMenu         *m_menuProtocols;
 100   wxMenuBar      *m_menuBar;
 101   bool            m_busy;
 102
 103   // any class wishing to process wxWidgets events must use this macro
 104   DECLARE_EVENT_TABLE()
 105 };
 106
 107 // --------------------------------------------------------------------------
 108 // constants
 109 // --------------------------------------------------------------------------
 110
 111 // IDs for the controls and the menu commands
 112 enum
 113 {
 114   // menu items
 115   CLIENT_QUIT = 1000,
 116   CLIENT_ABOUT,
 117   CLIENT_OPEN,
 118   CLIENT_TEST1,
 119   CLIENT_TEST2,
 120   CLIENT_TEST3,
 121   CLIENT_CLOSE,
 122 #if wxUSE_URL
 123   CLIENT_TESTURL,
 124 #endif
 125   CLIENT_DGRAM,
 126
 127   // id for socket
 128   SOCKET_ID
 129 };
 130
 131 // --------------------------------------------------------------------------
 132 // event tables and other macros for wxWidgets
 133 // --------------------------------------------------------------------------
 134
 135 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 136   EVT_MENU(CLIENT_QUIT,     MyFrame::OnQuit)
 137   EVT_MENU(CLIENT_ABOUT,    MyFrame::OnAbout)
 138   EVT_MENU(CLIENT_OPEN,     MyFrame::OnOpenConnection)
 139   EVT_MENU(CLIENT_TEST1,    MyFrame::OnTest1)
 140   EVT_MENU(CLIENT_TEST2,    MyFrame::OnTest2)
 141   EVT_MENU(CLIENT_TEST3,    MyFrame::OnTest3)
 142   EVT_MENU(CLIENT_CLOSE,    MyFrame::OnCloseConnection)
 143   EVT_MENU(CLIENT_DGRAM,    MyFrame::OnDatagram)
 144 #if wxUSE_URL
 145   EVT_MENU(CLIENT_TESTURL,  MyFrame::OnTestURL)
 146 #endif
 147   EVT_SOCKET(SOCKET_ID,     MyFrame::OnSocketEvent)
 148 END_EVENT_TABLE()
 149
 150 IMPLEMENT_APP(MyApp)
 151
 152 // ==========================================================================
 153 // implementation
 154 // ==========================================================================
 155
 156 // --------------------------------------------------------------------------
 157 // the application class
 158 // --------------------------------------------------------------------------
 159
 160 bool MyApp::OnInit()
 161 {
 162   // Create the main application window
 163   MyFrame *frame = new MyFrame();
 164
 165   // Show it and tell the application that it's our main window
 166   frame->Show(true);
 167   SetTopWindow(frame);
 168
 169   // success
 170   return true;
 171 }
 172
 173 // --------------------------------------------------------------------------
 174 // main frame
 175 // --------------------------------------------------------------------------
 176
 177 // frame constructor
 178 MyFrame::MyFrame() : wxFrame((wxFrame *)NULL, wxID_ANY,
 179                              _("wxSocket demo: Client"),
 180                              wxDefaultPosition, wxSize(300, 200))
 181 {
 182   // Give the frame an icon
 183   SetIcon(wxICON(mondrian));
 184
 185   // Make menus
 186   m_menuFile = new wxMenu();
 187   m_menuFile->Append(CLIENT_ABOUT, _("&About...\tCtrl-A"), _("Show about dialog"));
 188   m_menuFile->AppendSeparator();
 189   m_menuFile->Append(CLIENT_QUIT, _("E&xit\tAlt-X"), _("Quit client"));
 190
 191   m_menuSocket = new wxMenu();
 192   m_menuSocket->Append(CLIENT_OPEN, _("&Open session"), _("Connect to server"));
 193   m_menuSocket->AppendSeparator();
 194   m_menuSocket->Append(CLIENT_TEST1, _("Test &1"), _("Test basic functionality"));
 195   m_menuSocket->Append(CLIENT_TEST2, _("Test &2"), _("Test ReadMsg and WriteMsg"));
 196   m_menuSocket->Append(CLIENT_TEST3, _("Test &3"), _("Test large data transfer"));
 197   m_menuSocket->AppendSeparator();
 198   m_menuSocket->Append(CLIENT_CLOSE, _("&Close session"), _("Close connection"));
 199
 200   m_menuDatagramSocket = new wxMenu();
 201   m_menuDatagramSocket->Append(CLIENT_DGRAM, _("Send Datagram"), _("Test UDP sockets"));
 202
 203 #if wxUSE_URL
 204   m_menuProtocols = new wxMenu();
 205   m_menuProtocols->Append(CLIENT_TESTURL, _("Test URL"), _("Get data from the specified URL"));
 206 #endif
 207
 208   // Append menus to the menubar
 209   m_menuBar = new wxMenuBar();
 210   m_menuBar->Append(m_menuFile, _("&File"));
 211   m_menuBar->Append(m_menuSocket, _("&SocketClient"));
 212   m_menuBar->Append(m_menuDatagramSocket, _("&DatagramSocket"));
 213 #if wxUSE_URL
 214   m_menuBar->Append(m_menuProtocols, _("&Protocols"));
 215 #endif
 216   SetMenuBar(m_menuBar);
 217
 218 #if wxUSE_STATUSBAR
 219   // Status bar
 220   CreateStatusBar(2);
 221 #endif // wxUSE_STATUSBAR
 222
 223   // Make a textctrl for logging
 224   m_text  = new wxTextCtrl(this, wxID_ANY,
 225                            _("Welcome to wxSocket demo: Client\nClient ready\n"),
 226                            wxDefaultPosition, wxDefaultSize,
 227                            wxTE_MULTILINE | wxTE_READONLY);
 228
 229   // Create the socket
 230   m_sock = new wxSocketClient();
 231
 232   // Setup the event handler and subscribe to most events
 233   m_sock->SetEventHandler(*this, SOCKET_ID);
 234   m_sock->SetNotify(wxSOCKET_CONNECTION_FLAG |
 235                     wxSOCKET_INPUT_FLAG |
 236                     wxSOCKET_LOST_FLAG);
 237   m_sock->Notify(true);
 238
 239   m_busy = false;
 240   UpdateStatusBar();
 241 }
 242
 243 MyFrame::~MyFrame()
 244 {
 245   // No delayed deletion here, as the frame is dying anyway
 246   delete m_sock;
 247 }
 248
 249 // event handlers
 250
 251 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 252 {
 253   // true is to force the frame to close
 254   Close(true);
 255 }
 256
 257 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 258 {
 259   wxMessageBox(_("wxSocket demo: Client\n(c) 1999 Guillermo Rodriguez Garcia\n"),
 260                _("About Client"),
 261                wxOK | wxICON_INFORMATION, this);
 262 }
 263
 264 void MyFrame::OnOpenConnection(wxCommandEvent& WXUNUSED(event))
 265 {
 266   wxIPV4address addr;
 267
 268   m_menuSocket->Enable(CLIENT_OPEN, false);
 269   m_menuSocket->Enable(CLIENT_CLOSE, false);
 270
 271   // Ask user for server address
 272   wxString hostname = wxGetTextFromUser(
 273     _("Enter the address of the wxSocket demo server:"),
 274     _("Connect ..."),
 275     _("localhost"));
 276
 277   addr.Hostname(hostname);
 278   addr.Service(3000);
 279
 280   // Mini-tutorial for Connect() :-)
 281   // ---------------------------
 282   //
 283   // There are two ways to use Connect(): blocking and non-blocking,
 284   // depending on the value passed as the 'wait' (2nd) parameter.
 285   //
 286   // Connect(addr, true) will wait until the connection completes,
 287   // returning true on success and false on failure. This call blocks
 288   // the GUI (this might be changed in future releases to honour the
 289   // wxSOCKET_BLOCK flag).
 290   //
 291   // Connect(addr, false) will issue a nonblocking connection request
 292   // and return immediately. If the return value is true, then the
 293   // connection has been already succesfully established. If it is
 294   // false, you must wait for the request to complete, either with
 295   // WaitOnConnect() or by watching wxSOCKET_CONNECTION / LOST
 296   // events (please read the documentation).
 297   //
 298   // WaitOnConnect() itself never blocks the GUI (this might change
 299   // in the future to honour the wxSOCKET_BLOCK flag). This call will
 300   // return false on timeout, or true if the connection request
 301   // completes, which in turn might mean:
 302   //
 303   //   a) That the connection was successfully established
 304   //   b) That the connection request failed (for example, because
 305   //      it was refused by the peer.
 306   //
 307   // Use IsConnected() to distinguish between these two.
 308   //
 309   // So, in a brief, you should do one of the following things:
 310   //
 311   // For blocking Connect:
 312   //
 313   //   bool success = client->Connect(addr, true);
 314   //
 315   // For nonblocking Connect:
 316   //
 317   //   client->Connect(addr, false);
 318   //
 319   //   bool waitmore = true;
 320   //   while (! client->WaitOnConnect(seconds, millis) && waitmore )
 321   //   {
 322   //     // possibly give some feedback to the user,
 323   //     // update waitmore if needed.
 324   //   }
 325   //   bool success = client->IsConnected();
 326   //
 327   // And that's all :-)
 328
 329   m_text->AppendText(_("\nTrying to connect (timeout = 10 sec) ...\n"));
 330   m_sock->Connect(addr, false);
 331   m_sock->WaitOnConnect(10);
 332
 333   if (m_sock->IsConnected())
 334     m_text->AppendText(_("Succeeded ! Connection established\n"));
 335   else
 336   {
 337     m_sock->Close();
 338     m_text->AppendText(_("Failed ! Unable to connect\n"));
 339     wxMessageBox(_("Can't connect to the specified host"), _("Alert !"));
 340   }
 341
 342   UpdateStatusBar();
 343 }
 344
 345 void MyFrame::OnTest1(wxCommandEvent& WXUNUSED(event))
 346 {
 347   const wxChar *buf1;
 348   wxChar       *buf2;
 349   unsigned char len;
 350
 351   // Disable socket menu entries (exception: Close Session)
 352   m_busy = true;
 353   UpdateStatusBar();
 354
 355   m_text->AppendText(_("\n=== Test 1 begins ===\n"));
 356
 357   // Tell the server which test we are running
 358   unsigned char c = 0xBE;
 359   m_sock->Write(&c, 1);
 360
 361   // Send some data and read it back. We know the size of the
 362   // buffer, so we can specify the exact number of bytes to be
 363   // sent or received and use the wxSOCKET_WAITALL flag. Also,
 364   // we have disabled menu entries which could interfere with
 365   // the test, so we can safely avoid the wxSOCKET_BLOCK flag.
 366   //
 367   // First we send a byte with the length of the string, then
 368   // we send the string itself (do NOT try to send any integral
 369   // value larger than a byte "as is" across the network, or
 370   // you might be in trouble! Ever heard about big and little
 371   // endian computers?)
 372
 373   m_sock->SetFlags(wxSOCKET_WAITALL);
 374
 375   buf1 = _("Test string (less than 256 chars!)");
 376   len  = (unsigned char)((wxStrlen(buf1) + 1) * sizeof(wxChar));
 377   buf2 = new wxChar[wxStrlen(buf1) + 1];
 378
 379   m_text->AppendText(_("Sending a test buffer to the server ..."));
 380   m_sock->Write(&len, 1);
 381   m_sock->Write(buf1, len);
 382   m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 383
 384   m_text->AppendText(_("Receiving the buffer back from server ..."));
 385   m_sock->Read(buf2, len);
 386   m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 387
 388   m_text->AppendText(_("Comparing the two buffers ..."));
 389   if (memcmp(buf1, buf2, len) != 0)
 390   {
 391     m_text->AppendText(_("failed!\n"));
 392     m_text->AppendText(_("Test 1 failed !\n"));
 393   }
 394   else
 395   {
 396     m_text->AppendText(_("done\n"));
 397     m_text->AppendText(_("Test 1 passed !\n"));
 398   }
 399   m_text->AppendText(_("=== Test 1 ends ===\n"));
 400
 401   delete[] buf2;
 402   m_busy = false;
 403   UpdateStatusBar();
 404 }
 405
 406 void MyFrame::OnTest2(wxCommandEvent& WXUNUSED(event))
 407 {
 408   const wxChar *msg1;
 409   wxChar *msg2;
 410   size_t len;
 411
 412   // Disable socket menu entries (exception: Close Session)
 413   m_busy = true;
 414   UpdateStatusBar();
 415
 416   m_text->AppendText(_("\n=== Test 2 begins ===\n"));
 417
 418   // Tell the server which test we are running
 419   unsigned char c = 0xCE;
 420   m_sock->Write(&c, 1);
 421
 422   // Here we use ReadMsg and WriteMsg to send messages with
 423   // a header with size information. Also, the reception is
 424   // event triggered, so we test input events as well.
 425   //
 426   // We need to set no flags here (ReadMsg and WriteMsg are
 427   // not affected by flags)
 428
 429   m_sock->SetFlags(wxSOCKET_WAITALL);
 430
 431   wxString s = wxGetTextFromUser(
 432     _("Enter an arbitrary string to send to the server:"),
 433     _("Test 2 ..."),
 434     _("Yes I like wxWidgets!"));
 435
 436   msg1 = s.c_str();
 437   len  = (wxStrlen(msg1) + 1) * sizeof(wxChar);
 438   msg2 = new wxChar[wxStrlen(msg1) + 1];
 439
 440   m_text->AppendText(_("Sending the string with WriteMsg ..."));
 441   m_sock->WriteMsg(msg1, len);
 442   m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 443   m_text->AppendText(_("Waiting for an event (timeout = 2 sec)\n"));
 444
 445   // Wait until data available (will also return if the connection is lost)
 446   m_sock->WaitForRead(2);
 447
 448   if (m_sock->IsData())
 449   {
 450     m_text->AppendText(_("Reading the string back with ReadMsg ..."));
 451     m_sock->ReadMsg(msg2, len);
 452     m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 453     m_text->AppendText(_("Comparing the two buffers ..."));
 454     if (memcmp(msg1, msg2, len) != 0)
 455     {
 456       m_text->AppendText(_("failed!\n"));
 457       m_text->AppendText(_("Test 2 failed !\n"));
 458     }
 459     else
 460     {
 461       m_text->AppendText(_("done\n"));
 462       m_text->AppendText(_("Test 2 passed !\n"));
 463     }
 464   }
 465   else
 466     m_text->AppendText(_("Timeout ! Test 2 failed.\n"));
 467
 468   m_text->AppendText(_("=== Test 2 ends ===\n"));
 469
 470   delete[] msg2;
 471   m_busy = false;
 472   UpdateStatusBar();
 473 }
 474
 475 void MyFrame::OnTest3(wxCommandEvent& WXUNUSED(event))
 476 {
 477   char *buf1;
 478   char *buf2;
 479   unsigned char len;
 480
 481   // Disable socket menu entries (exception: Close Session)
 482   m_busy = true;
 483   UpdateStatusBar();
 484
 485   m_text->AppendText(_("\n=== Test 3 begins ===\n"));
 486
 487   // Tell the server which test we are running
 488   unsigned char c = 0xDE;
 489   m_sock->Write(&c, 1);
 490
 491   // This test also is similar to the first one but it sends a
 492   // large buffer so that wxSocket is actually forced to split
 493   // it into pieces and take care of sending everything before
 494   // returning.
 495
 496   m_sock->SetFlags(wxSOCKET_WAITALL);
 497
 498   // Note that len is in kbytes here!
 499   len  = 32;
 500   buf1 = new char[len * 1024];
 501   buf2 = new char[len * 1024];
 502
 503   for (int i = 0; i < len * 1024; i ++)
 504     buf1[i] = (char)(i % 256);
 505
 506   m_text->AppendText(_("Sending a large buffer (32K) to the server ..."));
 507   m_sock->Write(&len, 1);
 508   m_sock->Write(buf1, len * 1024);
 509   m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 510
 511   m_text->AppendText(_("Receiving the buffer back from server ..."));
 512   m_sock->Read(buf2, len * 1024);
 513   m_text->AppendText(m_sock->Error() ? _("failed !\n") : _("done\n"));
 514
 515   m_text->AppendText(_("Comparing the two buffers ..."));
 516   if (memcmp(buf1, buf2, len) != 0)
 517   {
 518     m_text->AppendText(_("failed!\n"));
 519     m_text->AppendText(_("Test 3 failed !\n"));
 520   }
 521   else
 522   {
 523     m_text->AppendText(_("done\n"));
 524     m_text->AppendText(_("Test 3 passed !\n"));
 525   }
 526   m_text->AppendText(_("=== Test 3 ends ===\n"));
 527
 528   delete[] buf2;
 529   m_busy = false;
 530   UpdateStatusBar();
 531 }
 532
 533 void MyFrame::OnCloseConnection(wxCommandEvent& WXUNUSED(event))
 534 {
 535   m_sock->Close();
 536   UpdateStatusBar();
 537 }
 538
 539 void MyFrame::OnDatagram(wxCommandEvent& WXUNUSED(event))
 540 {
 541   m_text->AppendText(_("\n=== Datagram test begins ===\n"));
 542   m_text->AppendText(_("Sorry, not implemented\n"));
 543   m_text->AppendText(_("=== Datagram test ends ===\n"));
 544 }
 545
 546 #if wxUSE_URL
 547
 548 void MyFrame::OnTestURL(wxCommandEvent& WXUNUSED(event))
 549 {
 550   // Note that we are creating a new socket here, so this
 551   // won't mess with the client/server demo.
 552
 553   // Ask for the URL
 554   m_text->AppendText(_("\n=== URL test begins ===\n"));
 555   wxString urlname = wxGetTextFromUser(_("Enter an URL to get"),
 556                                        _("URL:"),
 557                                        _T("http://localhost"));
 558
 559   // Parse the URL
 560   wxURL url(urlname);
 561   if (url.GetError() != wxURL_NOERR)
 562   {
 563     m_text->AppendText(_("Error: couldn't parse URL\n"));
 564     m_text->AppendText(_("=== URL test ends ===\n"));
 565     return;
 566   }
 567
 568   // Try to get the input stream (connects to the given URL)
 569   m_text->AppendText(_("Trying to establish connection...\n"));
 570   wxYield();
 571   wxInputStream *data = url.GetInputStream();
 572   if (!data)
 573   {
 574     m_text->AppendText(_("Error: couldn't read from URL\n"));
 575     m_text->AppendText(_("=== URL test ends ===\n"));
 576     return;
 577   }
 578
 579   // Print the contents type and file size
 580   wxString s;
 581   s.Printf(_("Contents type: %s\nFile size: %i\nStarting to download...\n"),
 582              url.GetProtocol().GetContentType().c_str(),
 583              data->GetSize());
 584   m_text->AppendText(s);
 585   wxYield();
 586
 587   // Get the data
 588   wxFile fileTest(wxT("test.url"));
 589   wxFileOutputStream sout(fileTest);
 590   if (!sout.Ok())
 591   {
 592     m_text->AppendText(_("Error: couldn't open file for output\n"));
 593     m_text->AppendText(_("=== URL test ends ===\n"));
 594     return;
 595   }
 596
 597   data->Read(sout);
 598   m_text->AppendText(_("Results written to file: test.url\n"));
 599   m_text->AppendText(_("Done.\n"));
 600   m_text->AppendText(_("=== URL test ends ===\n"));
 601
 602   delete data;
 603 }
 604
 605 #endif
 606
 607 void MyFrame::OnSocketEvent(wxSocketEvent& event)
 608 {
 609   wxString s = _("OnSocketEvent: ");
 610
 611   switch(event.GetSocketEvent())
 612   {
 613     case wxSOCKET_INPUT      : s.Append(_("wxSOCKET_INPUT\n")); break;
 614     case wxSOCKET_LOST       : s.Append(_("wxSOCKET_LOST\n")); break;
 615     case wxSOCKET_CONNECTION : s.Append(_("wxSOCKET_CONNECTION\n")); break;
 616     default                  : s.Append(_("Unexpected event !\n")); break;
 617   }
 618
 619   m_text->AppendText(s);
 620   UpdateStatusBar();
 621 }
 622
 623 // convenience functions
 624
 625 void MyFrame::UpdateStatusBar()
 626 {
 627   wxString s;
 628
 629   if (!m_sock->IsConnected())
 630   {
 631     s.Printf(_("Not connected"));
 632   }
 633   else
 634   {
 635     wxIPV4address addr;
 636
 637     m_sock->GetPeer(addr);
 638     s.Printf(_("%s : %d"), (addr.Hostname()).c_str(), addr.Service());
 639   }
 640
 641 #if wxUSE_STATUSBAR
 642   SetStatusText(s, 1);
 643 #endif // wxUSE_STATUSBAR
 644
 645   m_menuSocket->Enable(CLIENT_OPEN, !m_sock->IsConnected() && !m_busy);
 646   m_menuSocket->Enable(CLIENT_TEST1, m_sock->IsConnected() && !m_busy);
 647   m_menuSocket->Enable(CLIENT_TEST2, m_sock->IsConnected() && !m_busy);
 648   m_menuSocket->Enable(CLIENT_TEST3, m_sock->IsConnected() && !m_busy);
 649   m_menuSocket->Enable(CLIENT_CLOSE, m_sock->IsConnected());
 650 }