src/common/socket.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 // Name:       socket.cpp
   3 // Purpose:    Socket handler classes
   4 // Authors:    Guilhem Lavaux (completely rewritten from a basic API of Andrew
   5 //             Davidson(1995) in wxWeb)
   6 // Created:    April 1997
   7 // Updated:    March 1998
   8 // Copyright:  (C) 1998, 1997, Guilhem Lavaux
   9 // RCS_ID:     $Id$
  10 // License:    see wxWindows license
  11 ////////////////////////////////////////////////////////////////////////////////
  12 #ifdef __GNUG__
  13 #pragma implementation "socket.h"
  14 // #pragma interface
  15 // #pragma implementation "socket.cpp"
  16 #endif
  17
  18 // For compilers that support precompilation, includes "wx.h".
  19 #include "wx/wxprec.h"
  20
  21 #ifdef __BORLANDC__
  22 #pragma hdrstop
  23 #endif
  24
  25 /////////////////////////////////////////////////////////////////////////////
  26 // wxWindows headers
  27 /////////////////////////////////////////////////////////////////////////////
  28 #include <wx/defs.h>
  29 #include <wx/object.h>
  30 #include <wx/string.h>
  31 #include <wx/timer.h>
  32 #include <wx/utils.h>
  33
  34 // Not enough OS behaviour defined for wxStubs
  35 #ifndef __WXSTUBS__
  36
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <ctype.h>
  40
  41 /////////////////////////////////////////////////////////////////////////////
  42 // System specific headers
  43 /////////////////////////////////////////////////////////////////////////////
  44 #if defined(__WINDOWS__)
  45 #include <winsock.h>
  46 #endif // __WINDOWS__
  47
  48 #if defined(__UNIX__)
  49
  50 #ifdef VMS
  51 #include <socket.h>
  52 #else
  53 #include <sys/socket.h>
  54 #endif
  55 #include <sys/ioctl.h>
  56
  57 #include <sys/time.h>
  58 #include <unistd.h>
  59
  60 #ifdef sun
  61 #include <sys/filio.h>
  62 #endif
  63
  64 #endif // __UNIX__
  65
  66 #include <signal.h>
  67 #include <errno.h>
  68
  69 #ifdef _MSC_VER
  70 #include <io.h>
  71 #endif
  72
  73 #if defined(__WXMOTIF__) || defined(__WXXT__)
  74 #include <X11/Intrinsic.h>
  75
  76 /////////////////////////////
  77 // Needs internal variables
  78 /////////////////////////////
  79 #ifdef __WXXT__
  80 #define Uses_XtIntrinsic
  81 #endif
  82
  83 #endif
  84
  85 #if defined(__WXGTK__)
  86 #include <gtk/gtk.h>
  87 #endif
  88
  89 /////////////////////////////////////////////////////////////////////////////
  90 // wxSocket headers
  91 /////////////////////////////////////////////////////////////////////////////
  92 #include "wx/module.h"
  93 #define WXSOCK_INTERNAL
  94 #include "wx/sckaddr.h"
  95 #include "wx/socket.h"
  96
  97 /////////////////////////////////////////////////////////////////////////////
  98 // Some patch ///// BEGIN
  99 /////////////////////////////////////////////////////////////////////////////
 100 #ifdef __WINDOWS__
 101 #define close closesocket
 102 #define ioctl ioctlsocket
 103 #ifdef errno
 104 #undef errno
 105 #endif
 106 #define errno WSAGetLastError()
 107 #ifdef EWOULDBLOCK
 108 #undef EWOULDBLOCK
 109 #endif
 110 #define EWOULDBLOCK WSAEWOULDBLOCK
 111 #define ETIMEDOUT WSAETIMEDOUT
 112 #undef EINTR
 113 #define EINTR WSAEINTR
 114 #endif
 115
 116 #ifndef __WINDOWS__
 117 #define INVALID_SOCKET -1
 118 #endif
 119
 120 #ifdef __WXMOTIF__
 121 #define wxAPP_CONTEXT ((XtAppContext)wxTheApp->GetAppContext())
 122 #endif
 123
 124 #ifdef __WINDOWS__
 125 // This is an MS TCP/IP routine and is not needed here. Some WinSock
 126 // implementations (such as PC-NFS) will require you to include this
 127 // or a similar routine (see appendix in WinSock doc or help file).
 128
 129 #if defined( NEED_WSAFDIsSet ) || defined( _MSC_VER )
 130 int PASCAL FAR __WSAFDIsSet(SOCKET fd, fd_set FAR *set)
 131 {
 132         int i = set->fd_count;
 133
 134         while (i--)
 135         {
 136                 if (set->fd_array[i] == fd)
 137                         return 1;
 138         }
 139
 140         return 0;
 141 }
 142 #endif
 143 #endif
 144
 145 #if defined(__WINDOWS__)
 146 #define PROCESS_EVENTS() wxYield()
 147 #elif defined(__WXXT__) || defined(__WXMOTIF__)
 148 #define PROCESS_EVENTS() XtAppProcessEvent(wxAPP_CONTEXT, XtIMAll)
 149 #elif defined(__WXGTK__)
 150 #define PROCESS_EVENTS() gtk_main_iteration()
 151 #endif
 152
 153 /////////////////////////////////////////////////////////////////////////////
 154 // Some patch ///// END
 155 /////////////////////////////////////////////////////////////////////////////
 156
 157 // --------------------------------------------------------------
 158 // Module
 159 // --------------------------------------------------------------
 160 class wxSocketModule: public wxModule {
 161   DECLARE_DYNAMIC_CLASS(wxSocketModule)
 162 public:
 163   wxSocketModule() {}
 164   bool OnInit();
 165   void OnExit();
 166 };
 167
 168 // --------------------------------------------------------------
 169 // ClassInfos
 170 // --------------------------------------------------------------
 171 #if !USE_SHARED_LIBRARY
 172 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 173 IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
 174 IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
 175 IMPLEMENT_CLASS(wxSocketHandler, wxObject)
 176 IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
 177 IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
 178 #endif
 179
 180 class wxSockWakeUp : public wxTimer {
 181 public:
 182   int *my_id;
 183   int n_val;
 184   wxSocketBase *sock;
 185
 186   wxSockWakeUp(wxSocketBase *_sock, int *id, int new_val) {
 187     my_id = id; n_val = new_val;
 188     sock = _sock;
 189   }
 190   virtual void Notify() {
 191     *my_id = n_val;
 192     if (sock) sock->Notify(FALSE);
 193   }
 194 };
 195
 196 /// Socket request
 197 class SockRequest : public wxObject {
 198 public:
 199   char *buffer;
 200   size_t size, nbytes;
 201   bool done;
 202   int error;
 203   wxSockWakeUp *auto_wakeup;
 204   wxSocketBase::wxRequestNotify type;
 205 };
 206
 207
 208 /////////////////////////////////////////////////////////////////////////////
 209 // Some internal define
 210 /////////////////////////////////////////////////////////////////////////////
 211
 212 // --------------------------------------------------------------
 213 // --------- wxSocketBase CONSTRUCTOR ---------------------------
 214 // --------------------------------------------------------------
 215 wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
 216                            wxSocketBase::wxSockType _type) :
 217   wxEvtHandler(),
 218   m_flags(_flags), m_type(_type), m_connected(FALSE), m_connecting(FALSE),
 219   m_fd(INVALID_SOCKET), m_waitflags(0), m_cbk(0), m_cdata(0), m_id(-1),
 220   m_handler(0),
 221   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 222   m_cbkon(FALSE),
 223   m_unread(NULL), m_unrd_size(0),
 224   m_processing(FALSE),
 225   m_timeout(3600), m_wantbuf(0)
 226 {
 227   m_internal = new wxSockInternal;
 228 #if defined(__WXXT__) || defined(__WXMOTIF__) || defined(__WXGTK__)
 229   m_internal->sock_inputid = 0;
 230   m_internal->sock_outputid = 0;
 231   m_internal->sock_exceptid = 0;
 232 #endif
 233 #ifdef __WINDOWS__
 234   m_internal->my_msg = 0;
 235 #endif
 236 }
 237
 238 wxSocketBase::wxSocketBase() :
 239   wxEvtHandler(),
 240   m_flags(WAITALL), m_type(SOCK_UNINIT), m_connected(FALSE),
 241   m_connecting(FALSE), m_fd(INVALID_SOCKET), m_waitflags(0),
 242   m_cbk(0), m_cdata(0),
 243   m_id(-1), m_handler(0),
 244   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 245   m_cbkon(FALSE),
 246   m_unread(NULL), m_unrd_size(0),
 247   m_processing(FALSE),
 248   m_timeout(3600), m_wantbuf(0)
 249 {
 250   m_internal = new wxSockInternal;
 251 #if defined(__WXXT__) || defined(__WXMOTIF__) || defined(__WXGTK__)
 252   m_internal->sock_inputid = 0;
 253   m_internal->sock_outputid = 0;
 254   m_internal->sock_exceptid = 0;
 255 #endif
 256 #ifdef __WINDOWS__
 257   m_internal->my_msg = 0;
 258 #endif
 259 }
 260
 261 // --------------------------------------------------------------
 262 // --------- wxSocketBase CONSTRUCTOR ---------------------------
 263 // --------------------------------------------------------------
 264 wxSocketBase::~wxSocketBase()
 265 {
 266   DestroyCallbacks();
 267   Close();
 268
 269   if (m_unread)
 270     free(m_unread);
 271   if (m_handler) {
 272 #ifdef __WINDOWS__
 273     if (m_internal->my_msg)
 274       m_handler->DestroyMessage(m_internal->my_msg);
 275 #endif
 276     m_handler->UnRegister(this);
 277   }
 278   m_states.DeleteContents(TRUE);
 279
 280   delete m_internal;
 281 }
 282
 283 bool wxSocketBase::Close()
 284 {
 285   if (m_fd != INVALID_SOCKET) {
 286     for (int i=0;i<3;i++) {
 287       wxNode *n, *node = req_list[i].First();
 288
 289       while (node) {
 290         SockRequest *req = (SockRequest *)node->Data();
 291         req->done = TRUE;
 292
 293         n = node->Next();
 294         delete node;
 295         node = n;
 296       }
 297     }
 298
 299     DestroyCallbacks();
 300     shutdown(m_fd, 2);
 301     close(m_fd);
 302     m_fd = INVALID_SOCKET;
 303     m_connected = FALSE;
 304   }
 305
 306   return TRUE;
 307 }
 308
 309 // --------------------------------------------------------------
 310 // --------- wxSocketBase base IO functions ---------------------
 311 // --------------------------------------------------------------
 312 wxSocketBase& wxSocketBase::Read(char* buffer, size_t nbytes)
 313 {
 314   m_lcount = GetPushback(buffer, nbytes, FALSE);
 315
 316   // If we have got the whole needed buffer or if we don't want to
 317   // wait then it returns immediately.
 318   if (!nbytes || (m_lcount && !(m_flags & WAITALL)) )
 319     return *this;
 320
 321   WantBuffer(buffer, nbytes, EVT_READ);
 322
 323   return *this;
 324 }
 325
 326 wxSocketBase& wxSocketBase::Peek(char* buffer, size_t nbytes)
 327 {
 328   size_t nbytes_old = nbytes;
 329
 330   nbytes -= GetPushback(buffer, nbytes, TRUE);
 331   if (!nbytes) {
 332     m_lcount = nbytes_old;
 333     return *this;
 334   }
 335
 336   WantBuffer(buffer, nbytes, EVT_PEEK);
 337
 338   return *this;
 339 }
 340
 341 wxSocketBase& wxSocketBase::Write(const char *buffer, size_t nbytes)
 342 {
 343   WantBuffer((char *)buffer, nbytes, EVT_WRITE);
 344   return *this;
 345 }
 346
 347 wxSocketBase& wxSocketBase::ReadMsg(char* buffer, size_t nbytes)
 348 {
 349   SockMsg msg;
 350   size_t len, len2, sig;
 351
 352   Read((char *)&msg, sizeof(msg));
 353   if (m_lcount != sizeof(msg))
 354     return *this;
 355
 356   sig = msg.sig[0] & 0xff;
 357   sig |= (size_t)(msg.sig[1] & 0xff) << 8;
 358   sig |= (size_t)(msg.sig[2] & 0xff) << 16;
 359   sig |= (size_t)(msg.sig[3] & 0xff) << 24;
 360
 361   if (sig != 0xfeeddead)
 362     return *this;
 363   len = msg.len[0] & 0xff;
 364   len |= (size_t)(msg.len[1] & 0xff) << 8;
 365   len |= (size_t)(msg.len[2] & 0xff) << 16;
 366   len |= (size_t)(msg.len[3] & 0xff) << 24;
 367   len2 = len;
 368   if (len > nbytes)
 369     len = nbytes;
 370   else
 371     len2 = 0;
 372
 373   if (Read(buffer, len).LastCount() != len)
 374     return *this;
 375   if (len2 && (Read(NULL, len2).LastCount() != len2))
 376     return *this;
 377   if (Read((char *)&msg, sizeof(msg)).LastCount() != sizeof(msg))
 378     return *this;
 379
 380   sig = msg.sig[0] & 0xff;
 381   sig |= (size_t)(msg.sig[1] & 0xff) << 8;
 382   sig |= (size_t)(msg.sig[2] & 0xff) << 16;
 383   sig |= (size_t)(msg.sig[3] & 0xff) << 24;
 384 // ERROR
 385   if (sig != 0xdeadfeed)
 386     return *this;
 387
 388   return *this;
 389 }
 390
 391 wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, size_t nbytes)
 392 {
 393   SockMsg msg;
 394
 395   msg.sig[0] = (char) 0xad;
 396   msg.sig[1] = (char) 0xde;
 397   msg.sig[2] = (char) 0xed;
 398   msg.sig[3] = (char) 0xfe;
 399
 400   msg.len[0] = (char) nbytes & 0xff;
 401   msg.len[1] = (char) (nbytes >> 8) & 0xff;
 402   msg.len[2] = (char) (nbytes >> 16) & 0xff;
 403   msg.len[3] = (char) (nbytes >> 24) & 0xff;
 404
 405   if (Write((char *)&msg, sizeof(msg)).LastCount() < sizeof(msg))
 406     return *this;
 407   if (Write(buffer, nbytes).LastCount() < nbytes)
 408     return *this;
 409
 410   msg.sig[0] = (char) 0xed;
 411   msg.sig[1] = (char) 0xfe;
 412   msg.sig[2] = (char) 0xad;
 413   msg.sig[3] = (char) 0xde;
 414   msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;
 415   Write((char *)&msg, sizeof(msg));
 416
 417   return *this;
 418 }
 419
 420 wxSocketBase& wxSocketBase::Unread(const char *buffer, size_t nbytes)
 421 {
 422   CreatePushbackAfter(buffer, nbytes);
 423   return *this;
 424 }
 425
 426 bool wxSocketBase::IsData() const
 427 {
 428   struct timeval tv;
 429   fd_set sock_set;
 430
 431   if (m_fd < 0)
 432     return FALSE;
 433   if (m_unrd_size > 0)
 434     return TRUE;
 435
 436   tv.tv_sec = 0;
 437   tv.tv_usec = 0;
 438   FD_ZERO(&sock_set);
 439   FD_SET(m_fd, &sock_set);
 440   select(FD_SETSIZE, &sock_set, NULL, NULL, &tv);
 441   return (FD_ISSET(m_fd, &sock_set) != 0);
 442 }
 443
 444 // ---------------------------------------------------------------------
 445 // --------- wxSocketBase Discard(): deletes all byte in the input queue
 446 // ---------------------------------------------------------------------
 447 void wxSocketBase::Discard()
 448 {
 449 #define MAX_BUFSIZE (10*1024)
 450   char *my_data = new char[MAX_BUFSIZE];
 451   size_t recv_size = MAX_BUFSIZE;
 452
 453   SaveState();
 454   SetFlags((wxSockFlags)(NOWAIT | SPEED));
 455
 456   while (recv_size == MAX_BUFSIZE) {
 457     recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
 458   }
 459
 460   RestoreState();
 461   delete [] my_data;
 462
 463 #undef MAX_BUFSIZE
 464 }
 465
 466 // --------------------------------------------------------------
 467 // --------- wxSocketBase socket info functions -----------------
 468 // --------------------------------------------------------------
 469 bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
 470 {
 471   struct sockaddr my_addr;
 472   size_t len_addr = sizeof(my_addr);
 473
 474   if (m_fd < 0)
 475     return FALSE;
 476
 477   if (getpeername(m_fd, (struct sockaddr *)&my_addr, (int *)&len_addr) < 0)
 478     return FALSE;
 479
 480   addr_man.Disassemble(&my_addr, len_addr);
 481   return TRUE;
 482 }
 483
 484 bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
 485 {
 486   struct sockaddr my_addr;
 487   size_t len_addr = sizeof(my_addr);
 488
 489   if (m_fd < 0)
 490     return FALSE;
 491
 492   if (getsockname(m_fd, (struct sockaddr *)&my_addr, (int *)&len_addr) < 0)
 493     return FALSE;
 494
 495   addr_man.Disassemble(&my_addr, len_addr);
 496   return TRUE;
 497 }
 498
 499 // --------------------------------------------------------------
 500 // --------- wxSocketBase wait functions ------------------------
 501 // --------------------------------------------------------------
 502 void wxSocketBase::SaveState()
 503 {
 504   wxSockState *state = new wxSockState;
 505
 506   state->cbk_on = m_cbkon;
 507   state->cbk_set= m_neededreq;
 508   state->cbk    = m_cbk;
 509   state->cdata  = m_cdata;
 510   state->flags  = m_flags;
 511   state->notif  = m_notifyme;
 512
 513   m_states.Append(state);
 514 }
 515
 516 void wxSocketBase::RestoreState()
 517 {
 518   wxNode *node;
 519
 520   node = m_states.Last();
 521   if (!node)
 522     return;
 523
 524   wxSockState *state = (wxSockState *)node->Data();
 525
 526   SetFlags(state->flags);
 527   m_neededreq = state->cbk_set;
 528   m_cbk       = state->cbk;
 529   m_cdata     = state->cdata;
 530   m_notifyme  = state->notif;
 531   if (state->cbk_on)
 532     SetupCallbacks();
 533   else
 534     DestroyCallbacks();
 535
 536   delete node;
 537   delete state;
 538 }
 539
 540 // --------------------------------------------------------------
 541 // --------- wxSocketBase wait functions ------------------------
 542 // --------------------------------------------------------------
 543 //
 544 bool wxSocketBase::_Wait(long seconds, long microseconds, int type)
 545 {
 546   if ((!m_connected && !m_connecting) || m_fd < 0)
 547     return FALSE;
 548
 549   wxSockWakeUp wakeup(this, &m_waitflags, 0);
 550
 551   SaveState();
 552   SetNotify((wxRequestNotify)type);
 553   SetupCallbacks();
 554
 555   if (seconds != -1)
 556     wakeup.Start((int)(seconds*1000 + (microseconds / 1000)), TRUE);
 557
 558   m_waitflags = 0x80 | type;
 559   while (m_waitflags & 0x80)
 560     PROCESS_EVENTS();
 561
 562   RestoreState();
 563
 564   if (m_waitflags & 0x40) {
 565     m_waitflags = 0;
 566     return TRUE;
 567   }
 568   m_waitflags = 0;
 569
 570   return FALSE;
 571 }
 572
 573 bool wxSocketBase::Wait(long seconds, long microseconds)
 574 {
 575   return _Wait(seconds, microseconds, REQ_ACCEPT | REQ_CONNECT |
 576                                       REQ_READ | REQ_WRITE | REQ_LOST);
 577 }
 578
 579 bool wxSocketBase::WaitForRead(long seconds, long microseconds)
 580 {
 581   return _Wait(seconds, microseconds, REQ_READ | REQ_LOST);
 582 }
 583
 584 bool wxSocketBase::WaitForWrite(long seconds, long microseconds)
 585 {
 586   return _Wait(seconds, microseconds, REQ_WRITE);
 587 }
 588
 589 bool wxSocketBase::WaitForLost(long seconds, long microseconds)
 590 {
 591   return _Wait(seconds, microseconds, REQ_LOST);
 592 }
 593
 594 // --------------------------------------------------------------
 595 // --------- wxSocketBase callback management -------------------
 596 // --------------------------------------------------------------
 597
 598 #if defined(__WXMOTIF__) || defined(__WXXT__) || defined(__WXGTK__)
 599 #if defined(__WXMOTIF__) || defined(__WXXT__)
 600 static void wx_socket_read(XtPointer client, int *fid,
 601                            XtInputId *WXUNUSED(id))
 602 #define fd *fid
 603 #else
 604 static void wx_socket_read(gpointer client, gint fd,
 605                            GdkInputCondition WXUNUSED(cond))
 606 #define fd fd
 607 #endif
 608 {
 609   wxSocketBase *sock = (wxSocketBase *)client;
 610   char c;
 611   int i;
 612
 613   i = recv(fd, &c, 1, MSG_PEEK);
 614
 615   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT)) {
 616     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 617     return;
 618   }
 619
 620   if (i != 0) {
 621     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 622       return;
 623
 624     sock->OnRequest(wxSocketBase::EVT_READ);
 625   } else {
 626     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST)) {
 627       sock->Close();
 628       return;
 629     }
 630
 631     sock->OnRequest(wxSocketBase::EVT_LOST);
 632   }
 633 }
 634 #undef fd
 635
 636 #if defined(__WXMOTIF__) || defined(__WXXT__)
 637 static void wx_socket_write(XtPointer client, int *WXUNUSED(fid),
 638                             XtInputId *WXUNUSED(id))
 639 #else
 640 static void wx_socket_write(gpointer client, gint WXUNUSED(fd),
 641                             GdkInputCondition WXUNUSED(cond))
 642 #endif
 643 {
 644   wxSocketBase *sock = (wxSocketBase *)client;
 645
 646   if (!sock->IsConnected())
 647     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 648   else
 649     sock->OnRequest(wxSocketBase::EVT_WRITE);
 650 }
 651 #endif
 652
 653 #ifdef wx_xview
 654 Notify_value wx_sock_read_xview (Notify_client client, int fd)
 655 {
 656   wxSocketBase *sock = (wxSocketBase *)client;
 657   char c;
 658   int i;
 659
 660   i = recv(fd, &c, 1, MSG_PEEK);
 661
 662   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT)) {
 663     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 664     return;
 665   }
 666
 667   /* Bytes arrived */
 668   if (i != 0) {
 669     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 670       return (Notify_value) FALSE;
 671
 672     sock->OnRequest(wxSocketBase::EVT_READ);
 673   } else {
 674     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST))
 675       return;
 676
 677     sock->OnRequest(wxSocketBase::EVT_LOST);
 678   }
 679
 680   return (Notify_value) FALSE;
 681 }
 682
 683 Notify_value wx_sock_write_xview (Notify_client client, int fd)
 684 {
 685   wxSocketBase *sock = (wxSocketBase *)client;
 686
 687   if (!sock->IsConnected())
 688     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 689   else
 690     sock->OnRequest(wxSocketBase::EVT_WRITE);
 691
 692   return (Notify_value) TRUE;
 693 }
 694 #endif
 695
 696 wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
 697 {
 698   switch (evt) {
 699   case EVT_READ:
 700     return REQ_READ;
 701   case EVT_PEEK:
 702     return REQ_PEEK;
 703   case EVT_WRITE:
 704     return REQ_WRITE;
 705   case EVT_LOST:
 706     return REQ_LOST;
 707   case EVT_ACCEPT:
 708     return REQ_ACCEPT;
 709   case EVT_CONNECT:
 710     return REQ_CONNECT;
 711   }
 712   return 0;
 713 }
 714
 715 void wxSocketBase::SetFlags(wxSockFlags _flags)
 716 {
 717   m_flags = _flags;
 718   if (_flags & SPEED) {
 719     unsigned long flag = 0;
 720     ioctl(m_fd, FIONBIO, &flag);
 721
 722     // SPEED and WAITALL are antagonists.
 723     m_flags = (wxSockFlags)(m_flags & ~WAITALL);
 724
 725     Notify(FALSE);
 726   } else {
 727     unsigned long flag = 1;
 728     ioctl(m_fd, FIONBIO, &flag);
 729   }
 730 }
 731
 732 void wxSocketBase::SetNotify(wxRequestNotify flags)
 733 {
 734   wxRequestNotify old_needed_req = m_neededreq;
 735   if (flags & REQ_ACCEPT) {
 736     /* Check if server */
 737     if (!(GetClassInfo()->IsKindOf(CLASSINFO(wxSocketServer))))
 738       flags &= ~REQ_ACCEPT;
 739   }
 740   m_neededreq = flags;
 741   if (m_cbkon && old_needed_req != flags)
 742     SetupCallbacks();
 743 }
 744
 745 void wxSocketBase::SetupCallbacks()
 746 {
 747   if (m_fd == INVALID_SOCKET || !m_handler || (m_flags & SPEED))
 748     return;
 749
 750 #if defined(__WXMOTIF__) || defined(__WXXT__) || defined(__WXGTK__)
 751   if (m_cbkon)
 752     DestroyCallbacks();
 753   if (m_neededreq & (REQ_ACCEPT | REQ_READ | REQ_LOST)) {
 754 #ifdef __WXGTK__
 755     m_internal->sock_inputid = gdk_input_add(m_fd, GDK_INPUT_READ,
 756                                            wx_socket_read, (gpointer)this);
 757 #else
 758     m_internal->sock_inputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 759                                         (XtPointer *) XtInputReadMask,
 760                                         (XtInputCallbackProc) wx_socket_read,
 761                                         (XtPointer) this);
 762 #endif
 763   }
 764   if (m_neededreq & (REQ_CONNECT | REQ_WRITE)) {
 765 #ifdef __WXGTK__
 766     m_internal->sock_inputid = gdk_input_add(m_fd, GDK_INPUT_WRITE,
 767                                              wx_socket_write, (gpointer)this);
 768 #else
 769     m_internal->sock_outputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 770                                         (XtPointer *) XtInputWriteMask,
 771                                         (XtInputCallbackProc) wx_socket_write,
 772                                         (XtPointer) this);
 773 #endif
 774   }
 775 #endif
 776 #ifdef __WINDOWS__
 777   WORD mask = 0;
 778
 779   if (m_neededreq & REQ_READ)
 780     mask |= FD_READ;
 781   if (m_neededreq & REQ_WRITE)
 782     mask |= FD_WRITE;
 783   if (m_neededreq & REQ_LOST)
 784     mask |= FD_CLOSE;
 785   if (m_neededreq & REQ_ACCEPT)
 786     mask |= FD_ACCEPT;
 787   if (m_neededreq & REQ_CONNECT)
 788     mask |= FD_CONNECT;
 789
 790   if (!m_internal->my_msg)
 791     m_internal->my_msg = m_handler->NewMessage(this);
 792   WSAAsyncSelect(m_fd, m_handler->GetHWND(), m_internal->my_msg, mask);
 793 #endif
 794   m_cbkon = TRUE;
 795   m_processing = FALSE;
 796 }
 797
 798 void wxSocketBase::DestroyCallbacks()
 799 {
 800   if (!m_cbkon || !m_handler)
 801     return;
 802   m_cbkon = FALSE;
 803   m_processing = FALSE;
 804 #if defined(__WXMOTIF__) || defined(__WXXT__)
 805   if (m_internal->sock_inputid > 0)
 806     XtRemoveInput(m_internal->sock_inputid);
 807   m_internal->sock_inputid = 0;
 808   if (m_internal->sock_outputid > 0)
 809     XtRemoveInput(m_internal->sock_outputid);
 810   m_internal->sock_outputid = 0;
 811 #endif
 812 #ifdef __WXGTK__
 813   if (m_internal->sock_inputid > 0)
 814     gdk_input_remove(m_internal->sock_inputid);
 815   m_internal->sock_inputid = 0;
 816   if (m_internal->sock_outputid > 0)
 817     gdk_input_remove(m_internal->sock_outputid);
 818   m_internal->sock_outputid = 0;
 819 #endif
 820 #ifdef __WINDOWS__
 821   WSAAsyncSelect(m_fd, m_handler->GetHWND(), 0, 0);
 822 #endif
 823 }
 824
 825 void wxSocketBase::Notify(bool notify)
 826 {
 827   if (m_notifyme == notify)
 828     return;
 829   if (notify)
 830     SetupCallbacks();
 831   else
 832     DestroyCallbacks();
 833   m_notifyme = notify;
 834 }
 835
 836 void wxSocketBase::OnRequest(wxRequestEvent req_evt)
 837 {
 838   wxRequestNotify req_notif = EventToNotify(req_evt);
 839
 840   // Mask the current event
 841   SetNotify(m_neededreq & ~req_notif);
 842
 843   if (req_evt <= EVT_WRITE && DoRequests(req_evt))
 844     return;
 845
 846   if (m_waitflags & 0xF0) {
 847     // Wake up
 848     if ((m_waitflags & 0x0F) == req_evt) {
 849       m_waitflags = 0x80;
 850 #ifndef __WXGTK__
 851       DestroyCallbacks();  // I disable it to prevent infinite loop on X11.
 852 #endif
 853     }
 854     return;
 855   }
 856
 857   if (req_evt == EVT_LOST) {
 858     m_connected = FALSE;
 859     Close();
 860   }
 861   if (m_notifyme)
 862     OldOnNotify(req_evt);
 863
 864   // Unmask
 865   SetNotify(m_neededreq | req_notif);
 866 }
 867
 868 wxSocketEvent::wxSocketEvent(int id)
 869   : wxEvent(id)
 870 {
 871   wxEventType type = (wxEventType)wxEVT_SOCKET;
 872
 873   SetEventType(type);
 874 }
 875
 876 void wxSocketBase::OldOnNotify(wxRequestEvent evt)
 877 {
 878   wxSocketEvent event(m_id);
 879
 880   event.SetEventObject(this);
 881   event.m_skevt = evt;
 882   ProcessEvent(event);
 883
 884   if (m_cbk)
 885     m_cbk(*this, evt, m_cdata);
 886 }
 887
 888 // --------------------------------------------------------------
 889 // --------- wxSocketBase functions [Callback, CallbackData] ----
 890 // --------------------------------------------------------------
 891 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSocketBase::wxSockCbk _cbk)
 892 {
 893   wxSockCbk old_cbk = m_cbk;
 894
 895   m_cbk = _cbk;
 896   return old_cbk;
 897 }
 898
 899 char *wxSocketBase::CallbackData(char *cdata_)
 900 {
 901   char *old_cdata = m_cdata;
 902
 903   m_cdata = cdata_;
 904   return old_cdata;
 905 }
 906
 907 void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
 908 {
 909   SetNextHandler(&h_evt);
 910   m_id = id;
 911 }
 912
 913 // --------------------------------------------------------------
 914 // --------- wxSocketBase pushback library ----------------------
 915 // --------------------------------------------------------------
 916 void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
 917 {
 918   char *curr_pos;
 919
 920   m_unread = (char *) realloc(m_unread, m_unrd_size+size);
 921   curr_pos = m_unread + m_unrd_size;
 922
 923   memcpy(curr_pos, buffer, size);
 924   m_unrd_size += size;
 925 }
 926
 927 void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
 928 {
 929   char *curr_pos, *new_buf;
 930
 931   new_buf = (char *) malloc(m_unrd_size+size);
 932   curr_pos = new_buf + size;
 933
 934   memcpy(new_buf, buffer, size);
 935   memcpy(curr_pos, m_unread, m_unrd_size);
 936
 937   free(m_unread);
 938   m_unread = new_buf;
 939   m_unrd_size += size;
 940 }
 941
 942 size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
 943 {
 944   if (!m_unrd_size)
 945     return 0;
 946
 947   if (size > m_unrd_size)
 948     size = m_unrd_size;
 949   memcpy(buffer, m_unread, size);
 950
 951   if (!peek) {
 952     m_unrd_size -= size;
 953     if (!m_unrd_size) {
 954       free(m_unread);
 955       m_unread = NULL;
 956     }
 957   }
 958
 959   return size;
 960 }
 961
 962 // --------------------------------------------------------------
 963 // --------- wxSocketBase "multi-thread" core -------------------
 964 // --------------------------------------------------------------
 965
 966 bool wxSocketBase::DoRequests(wxRequestEvent req_flag)
 967 {
 968   wxNode *node = req_list[req_flag].First();
 969   size_t len;
 970   int ret;
 971
 972   if (!node)
 973     return FALSE;
 974
 975   SockRequest *req = (SockRequest *)node->Data();
 976
 977   delete node;
 978
 979   switch (req->type) {
 980   case EVT_READ:
 981   case EVT_PEEK:
 982     ret = recv(m_fd, req->buffer, req->size,
 983                (req->type == EVT_PEEK) ? MSG_PEEK : 0);
 984     if (ret < 0) {
 985       req->error = errno;
 986       req->done = TRUE;
 987       break;
 988     }
 989     len = ret;
 990     if ((len < req->size) && (m_flags & WAITALL)) {
 991       req->size -= len;
 992       req->nbytes += len;
 993       req->buffer += len;
 994       req->auto_wakeup->Start(m_timeout*1000, TRUE);
 995       req_list[req_flag].Insert(req);
 996       break;
 997     }
 998     req->done = TRUE;
 999     req->nbytes += len;
1000 #ifndef __WXGTK__
1001     DestroyCallbacks();
1002 #endif
1003     break;
1004   case EVT_WRITE:
1005     ret = send(m_fd, req->buffer, req->size, 0);
1006     if (ret < 0) {
1007       req->error = errno;
1008       req->done = TRUE;
1009       break;
1010     }
1011     len = ret;
1012     if ((len < req->size) && (m_flags & WAITALL)) {
1013       req->size -= len;
1014       req->nbytes += len;
1015       req->buffer += len;
1016       req->auto_wakeup->Start(m_timeout*1000, TRUE);
1017       req_list[req_flag].Insert(req);
1018       break;
1019     }
1020     req->done = TRUE;
1021     req->nbytes += len;
1022 #ifndef __WXGTK__
1023     DestroyCallbacks();
1024 #endif
1025     break;
1026   default:
1027     return FALSE;
1028   }
1029   return TRUE;
1030 }
1031
1032 void wxSocketBase::WantSpeedBuffer(char *buffer, size_t nbytes,
1033                                    wxRequestEvent evt)
1034 {
1035   int ret = 0;
1036
1037   switch (evt) {
1038   case EVT_PEEK:
1039   case EVT_READ:
1040     ret = recv(m_fd, buffer, nbytes,
1041                (evt == EVT_PEEK) ? MSG_PEEK : 0);
1042     break;
1043   case EVT_WRITE:
1044     ret = send(m_fd, buffer, nbytes, 0);
1045     break;
1046   }
1047   if (ret < 0) {
1048     m_lcount = 0;
1049     m_error = errno;
1050   } else {
1051     m_lcount = ret;
1052     m_error = 0;
1053   }
1054 }
1055
1056 void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
1057                               wxRequestEvent evt)
1058 {
1059   bool buf_timed_out;
1060
1061   if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
1062     return;
1063
1064   if (m_flags & SPEED) {
1065     WantSpeedBuffer(buffer, nbytes, evt);
1066     return;
1067   }
1068
1069   SockRequest *buf = new SockRequest;
1070   wxSockWakeUp s_wake(NULL, (int *)&buf_timed_out, (int)TRUE);
1071
1072   m_wantbuf++;
1073   req_list[evt].Append(buf);
1074
1075   SaveState();
1076   SetNotify(REQ_LOST | EventToNotify(evt));
1077   SetupCallbacks();
1078   buf->buffer = buffer;
1079   buf->size = nbytes;
1080   buf->done = FALSE;
1081   buf->type = evt;
1082   buf->nbytes = 0;
1083   buf->auto_wakeup = &s_wake;
1084   buf->error = 0;
1085   buf_timed_out = FALSE;
1086
1087   s_wake.Start(m_timeout*1000, TRUE);
1088   if (m_flags & NOWAIT) {
1089     DoRequests(evt);
1090   } else {
1091     while (!buf->done && !buf_timed_out)
1092       PROCESS_EVENTS();
1093   }
1094   m_wantbuf--;
1095   m_lcount = buf->nbytes;
1096   if (buf_timed_out)
1097     m_error = ETIMEDOUT;
1098   else
1099     m_error = buf->error;
1100
1101   delete buf;
1102   RestoreState();
1103 }
1104
1105 // --------------------------------------------------------------
1106 // wxSocketServer ///////////////////////////////////////////////
1107 // --------------------------------------------------------------
1108
1109 // --------------------------------------------------------------
1110 // --------- wxSocketServer CONSTRUCTOR -------------------------
1111 // --------------------------------------------------------------
1112 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
1113                                wxSockFlags flags) :
1114   wxSocketBase(flags, SOCK_SERVER)
1115 {
1116   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1117
1118   if (m_fd == INVALID_SOCKET)
1119     return;
1120
1121   int flag = 1;
1122   setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
1123
1124   struct sockaddr *myaddr;
1125   size_t len;
1126
1127   addr_man.Build(myaddr, len);
1128   if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
1129     return;
1130
1131   if (listen(m_fd, 5) < 0) {
1132     m_fd = INVALID_SOCKET;
1133     return;
1134   }
1135 }
1136
1137 // --------------------------------------------------------------
1138 // --------- wxSocketServer Accept ------------------------------
1139 // --------------------------------------------------------------
1140 bool wxSocketServer::AcceptWith(wxSocketBase& sock)
1141 {
1142   int fd2;
1143
1144   if ((fd2 = accept(m_fd, 0, 0)) < 0)
1145     return FALSE;
1146
1147   struct linger linger;
1148   linger.l_onoff = 0;
1149   linger.l_linger = 1;
1150
1151   setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1152
1153   int flag = 0;
1154   setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1155
1156   if (!(sock.m_flags & SPEED)) {
1157     unsigned long flag2 = 1;
1158     ioctl(fd2, FIONBIO, &flag2);
1159   }
1160
1161   sock.m_type = SOCK_INTERNAL;
1162   sock.m_fd = fd2;
1163   sock.m_connected = TRUE;
1164
1165   return TRUE;
1166 }
1167
1168 wxSocketBase *wxSocketServer::Accept()
1169 {
1170   wxSocketBase* sock = new wxSocketBase();
1171
1172   sock->SetFlags((wxSockFlags)m_flags);
1173
1174   if (!AcceptWith(*sock))
1175     return NULL;
1176
1177   if (m_handler)
1178     m_handler->Register(sock);
1179
1180   return sock;
1181 }
1182
1183 // --------------------------------------------------------------
1184 // --------- wxSocketServer callbacks ---------------------------
1185 // --------------------------------------------------------------
1186 void wxSocketServer::OnRequest(wxRequestEvent evt)
1187 {
1188   if (evt == EVT_ACCEPT) {
1189     OldOnNotify(EVT_ACCEPT);
1190   }
1191 }
1192
1193 // --------------------------------------------------------------
1194 // wxSocketClient ///////////////////////////////////////////////
1195 // --------------------------------------------------------------
1196
1197 // --------- wxSocketClient CONSTRUCTOR -------------------------
1198 // --------------------------------------------------------------
1199 wxSocketClient::wxSocketClient(wxSockFlags _flags) :
1200         wxSocketBase(_flags, SOCK_CLIENT)
1201 {
1202 }
1203
1204 // --------------------------------------------------------------
1205 // --------- wxSocketClient DESTRUCTOR --------------------------
1206 // --------------------------------------------------------------
1207 wxSocketClient::~wxSocketClient()
1208 {
1209 }
1210
1211 // --------------------------------------------------------------
1212 // --------- wxSocketClient Connect functions -------------------
1213 // --------------------------------------------------------------
1214 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
1215 {
1216   struct linger linger;
1217
1218   if (IsConnected())
1219     Close();
1220
1221   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1222
1223   if (m_fd < 0)
1224     return FALSE;
1225
1226   m_connected = FALSE;
1227
1228   linger.l_onoff = 1;
1229   linger.l_linger = 5;
1230   setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1231
1232   // Stay in touch with the state of things...
1233
1234   unsigned long flag = 1;
1235   setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1236
1237   // Disable the nagle algorithm, which delays sends till the
1238   // buffer is full (or a certain time period has passed?)...
1239
1240 #if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
1241   flag = 1;
1242   setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
1243 #endif
1244
1245   struct sockaddr *remote;
1246   size_t len;
1247
1248   addr_man.Build(remote, len);
1249
1250   if (connect(m_fd, remote, len) != 0)
1251     return FALSE;
1252
1253   if (!(m_flags & SPEED)) {
1254     flag = 1;
1255     ioctl(m_fd, FIONBIO, &flag);
1256   }
1257
1258   Notify(TRUE);
1259
1260   m_connected = TRUE;
1261   return TRUE;
1262 }
1263
1264 bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
1265 {
1266   int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
1267
1268   if (ret)
1269     m_connected = TRUE;
1270
1271   return m_connected;
1272 }
1273
1274 void wxSocketClient::OnRequest(wxRequestEvent evt)
1275 {
1276   if (evt == EVT_CONNECT) {
1277     if (m_connected) {
1278       SetNotify(m_neededreq & ~REQ_CONNECT);
1279       return;
1280     }
1281     m_waitflags = 0x40;
1282     m_connected = TRUE;
1283     OldOnNotify(EVT_CONNECT);
1284     DestroyCallbacks();
1285     return;
1286   }
1287   wxSocketBase::OnRequest(evt);
1288 }
1289
1290 /////////////////////////////////////////////////////////////////
1291 // wxSocketHandler ///////////////////////////////////////////////
1292 /////////////////////////////////////////////////////////////////
1293
1294 wxSocketHandler *wxSocketHandler::master = NULL;
1295 #if defined(__WINDOWS__)
1296 static int win_initialized = 0;
1297 #endif
1298
1299 // --------------------------------------------------------------
1300 // --------- wxSocketHandler CONSTRUCTOR ------------------------
1301 // --------------------------------------------------------------
1302 #ifdef __WINDOWS__
1303
1304 extern char wxPanelClassName[];
1305
1306 LRESULT APIENTRY _EXPORT wxSocketHandlerWndProc(HWND hWnd, UINT message,
1307    WPARAM wParam, LPARAM lParam)
1308 {
1309   wxSocketHandler *h_sock = (wxSocketHandler *)GetWindowLong(hWnd, GWL_USERDATA);
1310   wxNode *node = h_sock->smsg_list->Find(message);
1311   wxSocketBase *sock;
1312   wxSocketBase::wxRequestEvent sk_req;
1313   UINT event = WSAGETSELECTEVENT(lParam);
1314
1315   if (!node)
1316     return DefWindowProc(hWnd, message, wParam, lParam);
1317
1318   sock = (wxSocketBase *)node->Data();
1319
1320   switch (event) {
1321   case FD_READ:
1322     sk_req = wxSocketBase::EVT_READ;
1323     break;
1324   case FD_WRITE:
1325     sk_req = wxSocketBase::EVT_WRITE;
1326     break;
1327   case FD_CLOSE:
1328     sk_req = wxSocketBase::EVT_LOST;
1329     break;
1330   case FD_ACCEPT:
1331     sk_req = wxSocketBase::EVT_ACCEPT;
1332     break;
1333   case FD_CONNECT:
1334     sk_req = wxSocketBase::EVT_CONNECT;
1335     break;
1336   }
1337   sock->OnRequest(sk_req);
1338
1339   return (LRESULT)0;
1340 }
1341
1342 FARPROC wxSocketSubClassProc = NULL;
1343
1344 #endif
1345
1346 wxSocketHandler::wxSocketHandler()
1347 {
1348 #if defined(__WINDOWS__)
1349   if (!win_initialized) {
1350     WSADATA wsaData;
1351
1352     WSAStartup((1 << 8) | 1, &wsaData);
1353     win_initialized = 1;
1354   }
1355   internal = new wxSockHandlerInternal;
1356   internal->sockWin = ::CreateWindow(wxPanelClassName, NULL, 0,
1357                 0, 0, 0, 0, NULL, (HMENU) NULL,
1358                 wxhInstance, 0);
1359
1360   // Subclass the window
1361   if (!wxSocketSubClassProc)
1362     wxSocketSubClassProc = MakeProcInstance((FARPROC) wxSocketHandlerWndProc, wxhInstance);
1363   ::SetWindowLong(internal->sockWin, GWL_WNDPROC, (LONG) wxSocketSubClassProc);
1364   ::SetWindowLong(internal->sockWin, GWL_USERDATA, (LONG) this);
1365
1366   internal->firstAvailableMsg = 5000;
1367   smsg_list = new wxList(wxKEY_INTEGER);
1368 #endif
1369
1370   socks = new wxList;
1371
1372 #ifndef __WINDOWS__
1373   signal(SIGPIPE, SIG_IGN);
1374 #endif
1375 }
1376
1377 // --------------------------------------------------------------
1378 // --------- wxSocketHandler DESTRUCTOR -------------------------
1379 // --------------------------------------------------------------
1380 wxSocketHandler::~wxSocketHandler()
1381 {
1382   wxNode *next_node, *node = socks->First();
1383
1384   while (node) {
1385     wxSocketBase* sock = (wxSocketBase*)node->Data();
1386
1387     delete sock;
1388     next_node = node->Next();
1389     delete node;
1390     node = next_node;
1391   }
1392
1393   delete socks;
1394
1395 #ifdef __WINDOWS__
1396   delete smsg_list;
1397
1398   ::DestroyWindow(internal->sockWin);
1399   WSACleanup();
1400   win_initialized = 0;
1401
1402   delete internal;
1403 #endif
1404 }
1405
1406 // --------------------------------------------------------------
1407 // --------- wxSocketHandler registering functions --------------
1408 // --------------------------------------------------------------
1409 void wxSocketHandler::Register(wxSocketBase* sock)
1410 {
1411   wxNode *node;
1412
1413   for (node = socks->First(); node != NULL; node = node->Next()) {
1414     wxSocketBase* s = (wxSocketBase*)node->Data();
1415
1416     if (s == sock)
1417       return;
1418   }
1419
1420   if (sock) {
1421     socks->Append(sock);
1422     sock->SetHandler(this);
1423     sock->SetupCallbacks();
1424   }
1425 }
1426
1427 void wxSocketHandler::UnRegister(wxSocketBase* sock)
1428 {
1429   wxNode *node;
1430
1431   for (node = socks->First(); node; node = node->Next()) {
1432     wxSocketBase* s = (wxSocketBase*)node->Data();
1433
1434     if (s == sock) {
1435       delete node;
1436       sock->DestroyCallbacks();
1437       sock->SetHandler(NULL);
1438       return;
1439     }
1440   }
1441 }
1442
1443 unsigned long wxSocketHandler::Count() const
1444 {
1445   return socks->Number();
1446 }
1447
1448 // --------------------------------------------------------------
1449 // --------- wxSocketHandler "big" wait functions ---------------
1450 // --------------------------------------------------------------
1451 void handler_cbk(wxSocketBase& sock,
1452                  wxSocketBase::wxRequestEvent WXUNUSED(flags),
1453                  char *cdata)
1454 {
1455   int *a_wait = (int *)cdata;
1456
1457   (*a_wait)++;
1458   sock.Notify(FALSE);
1459 }
1460
1461 int wxSocketHandler::Wait(long seconds, long microseconds)
1462 {
1463   int i;
1464   int on_wait;
1465   wxSockWakeUp s_wake(NULL, &on_wait, -2);
1466   wxNode *node;
1467
1468   for (node = socks->First(), i=0; node; node = node->Next(), i++) {
1469     wxSocketBase *sock = (wxSocketBase *)node->Data();
1470
1471     sock->SaveState();
1472
1473     sock->SetupCallbacks();
1474
1475     sock->Callback(handler_cbk);
1476     sock->CallbackData((char *)&on_wait);
1477   }
1478   on_wait = 0;
1479   if (seconds != -1)
1480     s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
1481
1482   while (!on_wait)
1483     PROCESS_EVENTS();
1484
1485   for (node = socks->First(), i=0; node; node = node->Next(), i++) {
1486     wxSocketBase *sock = (wxSocketBase *)node->Data();
1487
1488     sock->RestoreState();
1489   }
1490
1491   if (on_wait == -2)
1492     return 0;
1493
1494   return on_wait;
1495 }
1496
1497 void wxSocketHandler::YieldSock()
1498 {
1499   wxNode *node;
1500
1501   for (node = socks->First(); node; node = node->Next() ) {
1502     wxSocketBase *sock = (wxSocketBase *)node->Data();
1503
1504     sock->SaveState();
1505
1506     sock->SetFlags(wxSocketBase::SPEED);
1507     if (sock->IsData())
1508       sock->DoRequests(wxSocketBase::EVT_READ);
1509     sock->DoRequests(wxSocketBase::EVT_WRITE);
1510
1511     sock->RestoreState();
1512   }
1513 }
1514
1515 // --------------------------------------------------------------
1516 // --------- wxSocketHandler: create and register the socket ----
1517 // --------------------------------------------------------------
1518 wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
1519                                               wxSocketBase::wxSockFlags flags)
1520 {
1521   wxSocketServer *serv = new wxSocketServer(addr, flags);
1522
1523   Register(serv);
1524   return serv;
1525 }
1526
1527 wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
1528 {
1529   wxSocketClient *client = new wxSocketClient(flags);
1530
1531   Register(client);
1532   return client;
1533 }
1534
1535 #ifdef __WINDOWS__
1536 // --------------------------------------------------------------
1537 // --------- wxSocketHandler: Windows specific methods ----------
1538 // --------------------------------------------------------------
1539 UINT wxSocketHandler::NewMessage(wxSocketBase *sock)
1540 {
1541   internal->firstAvailableMsg++;
1542   smsg_list->Append(internal->firstAvailableMsg, sock);
1543   return internal->firstAvailableMsg;
1544 }
1545
1546 void wxSocketHandler::DestroyMessage(UINT msg)
1547 {
1548   wxNode *node = smsg_list->Find(msg);
1549   delete node;
1550 }
1551
1552 HWND wxSocketHandler::GetHWND() const
1553 {
1554   return internal->sockWin;
1555 }
1556
1557 #endif
1558
1559 bool wxSocketModule::OnInit() {
1560   wxSocketHandler::master = new wxSocketHandler();
1561   return TRUE;
1562 }
1563
1564 void wxSocketModule::OnExit() {
1565   delete wxSocketHandler::master;
1566   wxSocketHandler::master = NULL;
1567 }
1568
1569 #endif
1570   // __WXSTUBS__