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   int len_addr = sizeof(my_addr);
 473
 474   if (m_fd < 0)
 475     return FALSE;
 476
 477   if (getpeername(m_fd, (struct sockaddr *)&my_addr,
 478     &len_addr) < 0)
 479     return FALSE;
 480
 481   addr_man.Disassemble(&my_addr, len_addr);
 482   return TRUE;
 483 }
 484
 485 bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
 486 {
 487   struct sockaddr my_addr;
 488   int len_addr = sizeof(my_addr);
 489
 490   if (m_fd < 0)
 491     return FALSE;
 492
 493   if (getsockname(m_fd, (struct sockaddr *)&my_addr,
 494     &len_addr) < 0)
 495
 496     return FALSE;
 497
 498   addr_man.Disassemble(&my_addr, len_addr);
 499   return TRUE;
 500 }
 501
 502 // --------------------------------------------------------------
 503 // --------- wxSocketBase wait functions ------------------------
 504 // --------------------------------------------------------------
 505 void wxSocketBase::SaveState()
 506 {
 507   wxSockState *state = new wxSockState;
 508
 509   state->cbk_on = m_cbkon;
 510   state->cbk_set= m_neededreq;
 511   state->cbk    = m_cbk;
 512   state->cdata  = m_cdata;
 513   state->flags  = m_flags;
 514   state->notif  = m_notifyme;
 515
 516   m_states.Append(state);
 517 }
 518
 519 void wxSocketBase::RestoreState()
 520 {
 521   wxNode *node;
 522
 523   node = m_states.Last();
 524   if (!node)
 525     return;
 526
 527   wxSockState *state = (wxSockState *)node->Data();
 528
 529   SetFlags(state->flags);
 530   m_neededreq = state->cbk_set;
 531   m_cbk       = state->cbk;
 532   m_cdata     = state->cdata;
 533   m_notifyme  = state->notif;
 534   if (state->cbk_on)
 535     SetupCallbacks();
 536   else
 537     DestroyCallbacks();
 538
 539   delete node;
 540   delete state;
 541 }
 542
 543 // --------------------------------------------------------------
 544 // --------- wxSocketBase wait functions ------------------------
 545 // --------------------------------------------------------------
 546 //
 547 bool wxSocketBase::_Wait(long seconds, long microseconds, int type)
 548 {
 549   if ((!m_connected && !m_connecting) || m_fd < 0)
 550     return FALSE;
 551
 552   wxSockWakeUp wakeup(this, &m_waitflags, 0);
 553
 554   SaveState();
 555   SetNotify((wxRequestNotify)type);
 556   SetupCallbacks();
 557
 558   if (seconds != -1)
 559     wakeup.Start((int)(seconds*1000 + (microseconds / 1000)), TRUE);
 560
 561   m_waitflags = 0x80 | type;
 562   while (m_waitflags & 0x80)
 563     PROCESS_EVENTS();
 564
 565   RestoreState();
 566
 567   if (m_waitflags & 0x40) {
 568     m_waitflags = 0;
 569     return TRUE;
 570   }
 571   m_waitflags = 0;
 572
 573   return FALSE;
 574 }
 575
 576 bool wxSocketBase::Wait(long seconds, long microseconds)
 577 {
 578   return _Wait(seconds, microseconds, REQ_ACCEPT | REQ_CONNECT |
 579                                       REQ_READ | REQ_WRITE | REQ_LOST);
 580 }
 581
 582 bool wxSocketBase::WaitForRead(long seconds, long microseconds)
 583 {
 584   return _Wait(seconds, microseconds, REQ_READ | REQ_LOST);
 585 }
 586
 587 bool wxSocketBase::WaitForWrite(long seconds, long microseconds)
 588 {
 589   return _Wait(seconds, microseconds, REQ_WRITE);
 590 }
 591
 592 bool wxSocketBase::WaitForLost(long seconds, long microseconds)
 593 {
 594   return _Wait(seconds, microseconds, REQ_LOST);
 595 }
 596
 597 // --------------------------------------------------------------
 598 // --------- wxSocketBase callback management -------------------
 599 // --------------------------------------------------------------
 600
 601 #if defined(__WXMOTIF__) || defined(__WXXT__) || defined(__WXGTK__)
 602 #if defined(__WXMOTIF__) || defined(__WXXT__)
 603 static void wx_socket_read(XtPointer client, int *fid,
 604                            XtInputId *WXUNUSED(id))
 605 #define fd *fid
 606 #else
 607 static void wx_socket_read(gpointer client, gint fd,
 608                            GdkInputCondition WXUNUSED(cond))
 609 #define fd fd
 610 #endif
 611 {
 612   wxSocketBase *sock = (wxSocketBase *)client;
 613   char c;
 614   int i;
 615
 616   i = recv(fd, &c, 1, MSG_PEEK);
 617
 618   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT)) {
 619     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 620     return;
 621   }
 622
 623   if (i != 0) {
 624     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 625       return;
 626
 627     sock->OnRequest(wxSocketBase::EVT_READ);
 628   } else {
 629     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST)) {
 630       sock->Close();
 631       return;
 632     }
 633
 634     sock->OnRequest(wxSocketBase::EVT_LOST);
 635   }
 636 }
 637 #undef fd
 638
 639 #if defined(__WXMOTIF__) || defined(__WXXT__)
 640 static void wx_socket_write(XtPointer client, int *WXUNUSED(fid),
 641                             XtInputId *WXUNUSED(id))
 642 #else
 643 static void wx_socket_write(gpointer client, gint WXUNUSED(fd),
 644                             GdkInputCondition WXUNUSED(cond))
 645 #endif
 646 {
 647   wxSocketBase *sock = (wxSocketBase *)client;
 648
 649   if (!sock->IsConnected())
 650     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 651   else
 652     sock->OnRequest(wxSocketBase::EVT_WRITE);
 653 }
 654 #endif
 655
 656 #ifdef wx_xview
 657 Notify_value wx_sock_read_xview (Notify_client client, int fd)
 658 {
 659   wxSocketBase *sock = (wxSocketBase *)client;
 660   char c;
 661   int i;
 662
 663   i = recv(fd, &c, 1, MSG_PEEK);
 664
 665   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT)) {
 666     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 667     return;
 668   }
 669
 670   /* Bytes arrived */
 671   if (i != 0) {
 672     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 673       return (Notify_value) FALSE;
 674
 675     sock->OnRequest(wxSocketBase::EVT_READ);
 676   } else {
 677     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST))
 678       return;
 679
 680     sock->OnRequest(wxSocketBase::EVT_LOST);
 681   }
 682
 683   return (Notify_value) FALSE;
 684 }
 685
 686 Notify_value wx_sock_write_xview (Notify_client client, int fd)
 687 {
 688   wxSocketBase *sock = (wxSocketBase *)client;
 689
 690   if (!sock->IsConnected())
 691     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 692   else
 693     sock->OnRequest(wxSocketBase::EVT_WRITE);
 694
 695   return (Notify_value) TRUE;
 696 }
 697 #endif
 698
 699 wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
 700 {
 701   switch (evt) {
 702   case EVT_READ:
 703     return REQ_READ;
 704   case EVT_PEEK:
 705     return REQ_PEEK;
 706   case EVT_WRITE:
 707     return REQ_WRITE;
 708   case EVT_LOST:
 709     return REQ_LOST;
 710   case EVT_ACCEPT:
 711     return REQ_ACCEPT;
 712   case EVT_CONNECT:
 713     return REQ_CONNECT;
 714   }
 715   return 0;
 716 }
 717
 718 void wxSocketBase::SetFlags(wxSockFlags _flags)
 719 {
 720   m_flags = _flags;
 721   if (_flags & SPEED) {
 722     unsigned long flag = 0;
 723     ioctl(m_fd, FIONBIO, &flag);
 724
 725     // SPEED and WAITALL are antagonists.
 726     m_flags = (wxSockFlags)(m_flags & ~WAITALL);
 727
 728     Notify(FALSE);
 729   } else {
 730     unsigned long flag = 1;
 731     ioctl(m_fd, FIONBIO, &flag);
 732   }
 733 }
 734
 735 void wxSocketBase::SetNotify(wxRequestNotify flags)
 736 {
 737   wxRequestNotify old_needed_req = m_neededreq;
 738   if (flags & REQ_ACCEPT) {
 739     /* Check if server */
 740     if (!(GetClassInfo()->IsKindOf(CLASSINFO(wxSocketServer))))
 741       flags &= ~REQ_ACCEPT;
 742   }
 743   m_neededreq = flags;
 744   if (m_cbkon && old_needed_req != flags)
 745     SetupCallbacks();
 746 }
 747
 748 void wxSocketBase::SetupCallbacks()
 749 {
 750   if (m_fd == INVALID_SOCKET || !m_handler || (m_flags & SPEED))
 751     return;
 752
 753 #if defined(__WXMOTIF__) || defined(__WXXT__) || defined(__WXGTK__)
 754   if (m_cbkon)
 755     DestroyCallbacks();
 756   if (m_neededreq & (REQ_ACCEPT | REQ_READ | REQ_LOST)) {
 757 #ifdef __WXGTK__
 758     m_internal->sock_inputid = gdk_input_add(m_fd, GDK_INPUT_READ,
 759                                            wx_socket_read, (gpointer)this);
 760 #else
 761     m_internal->sock_inputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 762                                         (XtPointer *) XtInputReadMask,
 763                                         (XtInputCallbackProc) wx_socket_read,
 764                                         (XtPointer) this);
 765 #endif
 766   }
 767   if (m_neededreq & (REQ_CONNECT | REQ_WRITE)) {
 768 #ifdef __WXGTK__
 769     m_internal->sock_inputid = gdk_input_add(m_fd, GDK_INPUT_WRITE,
 770                                              wx_socket_write, (gpointer)this);
 771 #else
 772     m_internal->sock_outputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 773                                         (XtPointer *) XtInputWriteMask,
 774                                         (XtInputCallbackProc) wx_socket_write,
 775                                         (XtPointer) this);
 776 #endif
 777   }
 778 #endif
 779 #ifdef __WINDOWS__
 780   WORD mask = 0;
 781
 782   if (m_neededreq & REQ_READ)
 783     mask |= FD_READ;
 784   if (m_neededreq & REQ_WRITE)
 785     mask |= FD_WRITE;
 786   if (m_neededreq & REQ_LOST)
 787     mask |= FD_CLOSE;
 788   if (m_neededreq & REQ_ACCEPT)
 789     mask |= FD_ACCEPT;
 790   if (m_neededreq & REQ_CONNECT)
 791     mask |= FD_CONNECT;
 792
 793   if (!m_internal->my_msg)
 794     m_internal->my_msg = m_handler->NewMessage(this);
 795   WSAAsyncSelect(m_fd, m_handler->GetHWND(), m_internal->my_msg, mask);
 796 #endif
 797   m_cbkon = TRUE;
 798   m_processing = FALSE;
 799 }
 800
 801 void wxSocketBase::DestroyCallbacks()
 802 {
 803   if (!m_cbkon || !m_handler)
 804     return;
 805   m_cbkon = FALSE;
 806   m_processing = FALSE;
 807 #if defined(__WXMOTIF__) || defined(__WXXT__)
 808   if (m_internal->sock_inputid > 0)
 809     XtRemoveInput(m_internal->sock_inputid);
 810   m_internal->sock_inputid = 0;
 811   if (m_internal->sock_outputid > 0)
 812     XtRemoveInput(m_internal->sock_outputid);
 813   m_internal->sock_outputid = 0;
 814 #endif
 815 #ifdef __WXGTK__
 816   if (m_internal->sock_inputid > 0)
 817     gdk_input_remove(m_internal->sock_inputid);
 818   m_internal->sock_inputid = 0;
 819   if (m_internal->sock_outputid > 0)
 820     gdk_input_remove(m_internal->sock_outputid);
 821   m_internal->sock_outputid = 0;
 822 #endif
 823 #ifdef __WINDOWS__
 824   WSAAsyncSelect(m_fd, m_handler->GetHWND(), 0, 0);
 825 #endif
 826 }
 827
 828 void wxSocketBase::Notify(bool notify)
 829 {
 830   if (m_notifyme == notify)
 831     return;
 832   if (notify)
 833     SetupCallbacks();
 834   else
 835     DestroyCallbacks();
 836   m_notifyme = notify;
 837 }
 838
 839 void wxSocketBase::OnRequest(wxRequestEvent req_evt)
 840 {
 841   wxRequestNotify req_notif = EventToNotify(req_evt);
 842
 843   // Mask the current event
 844   SetNotify(m_neededreq & ~req_notif);
 845
 846   if (req_evt <= EVT_WRITE && DoRequests(req_evt))
 847     return;
 848
 849   if (m_waitflags & 0xF0) {
 850     // Wake up
 851     if ((m_waitflags & 0x0F) == req_evt) {
 852       m_waitflags = 0x80;
 853 #ifndef __WXGTK__
 854       DestroyCallbacks();  // I disable it to prevent infinite loop on X11.
 855 #endif
 856     }
 857     return;
 858   }
 859
 860   if (req_evt == EVT_LOST) {
 861     m_connected = FALSE;
 862     Close();
 863   }
 864   if (m_notifyme)
 865     OldOnNotify(req_evt);
 866
 867   // Unmask
 868   SetNotify(m_neededreq | req_notif);
 869 }
 870
 871 wxSocketEvent::wxSocketEvent(int id)
 872   : wxEvent(id)
 873 {
 874   wxEventType type = (wxEventType)wxEVT_SOCKET;
 875
 876   SetEventType(type);
 877 }
 878
 879 void wxSocketBase::OldOnNotify(wxRequestEvent evt)
 880 {
 881   wxSocketEvent event(m_id);
 882
 883   event.SetEventObject(this);
 884   event.m_skevt = evt;
 885   ProcessEvent(event);
 886
 887   if (m_cbk)
 888     m_cbk(*this, evt, m_cdata);
 889 }
 890
 891 // --------------------------------------------------------------
 892 // --------- wxSocketBase functions [Callback, CallbackData] ----
 893 // --------------------------------------------------------------
 894 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSocketBase::wxSockCbk _cbk)
 895 {
 896   wxSockCbk old_cbk = m_cbk;
 897
 898   m_cbk = _cbk;
 899   return old_cbk;
 900 }
 901
 902 char *wxSocketBase::CallbackData(char *cdata_)
 903 {
 904   char *old_cdata = m_cdata;
 905
 906   m_cdata = cdata_;
 907   return old_cdata;
 908 }
 909
 910 void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
 911 {
 912   SetNextHandler(&h_evt);
 913   m_id = id;
 914 }
 915
 916 // --------------------------------------------------------------
 917 // --------- wxSocketBase pushback library ----------------------
 918 // --------------------------------------------------------------
 919 void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
 920 {
 921   char *curr_pos;
 922
 923   m_unread = (char *) realloc(m_unread, m_unrd_size+size);
 924   curr_pos = m_unread + m_unrd_size;
 925
 926   memcpy(curr_pos, buffer, size);
 927   m_unrd_size += size;
 928 }
 929
 930 void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
 931 {
 932   char *curr_pos, *new_buf;
 933
 934   new_buf = (char *) malloc(m_unrd_size+size);
 935   curr_pos = new_buf + size;
 936
 937   memcpy(new_buf, buffer, size);
 938   memcpy(curr_pos, m_unread, m_unrd_size);
 939
 940   free(m_unread);
 941   m_unread = new_buf;
 942   m_unrd_size += size;
 943 }
 944
 945 size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
 946 {
 947   if (!m_unrd_size)
 948     return 0;
 949
 950   if (size > m_unrd_size)
 951     size = m_unrd_size;
 952   memcpy(buffer, m_unread, size);
 953
 954   if (!peek) {
 955     m_unrd_size -= size;
 956     if (!m_unrd_size) {
 957       free(m_unread);
 958       m_unread = NULL;
 959     }
 960   }
 961
 962   return size;
 963 }
 964
 965 // --------------------------------------------------------------
 966 // --------- wxSocketBase "multi-thread" core -------------------
 967 // --------------------------------------------------------------
 968
 969 bool wxSocketBase::DoRequests(wxRequestEvent req_flag)
 970 {
 971   wxNode *node = req_list[req_flag].First();
 972   size_t len;
 973   int ret;
 974
 975   if (!node)
 976     return FALSE;
 977
 978   SockRequest *req = (SockRequest *)node->Data();
 979
 980   delete node;
 981
 982   switch (req->type) {
 983   case EVT_READ:
 984   case EVT_PEEK:
 985     ret = recv(m_fd, req->buffer, req->size,
 986                (req->type == EVT_PEEK) ? MSG_PEEK : 0);
 987     if (ret < 0) {
 988       req->error = errno;
 989       req->done = TRUE;
 990       break;
 991     }
 992     len = ret;
 993     if ((len < req->size) && (m_flags & WAITALL)) {
 994       req->size -= len;
 995       req->nbytes += len;
 996       req->buffer += len;
 997       req->auto_wakeup->Start(m_timeout*1000, TRUE);
 998       req_list[req_flag].Insert(req);
 999       break;
1000     }
1001     req->done = TRUE;
1002     req->nbytes += len;
1003 #ifndef __WXGTK__
1004     DestroyCallbacks();
1005 #endif
1006     break;
1007   case EVT_WRITE:
1008     ret = send(m_fd, req->buffer, req->size, 0);
1009     if (ret < 0) {
1010       req->error = errno;
1011       req->done = TRUE;
1012       break;
1013     }
1014     len = ret;
1015     if ((len < req->size) && (m_flags & WAITALL)) {
1016       req->size -= len;
1017       req->nbytes += len;
1018       req->buffer += len;
1019       req->auto_wakeup->Start(m_timeout*1000, TRUE);
1020       req_list[req_flag].Insert(req);
1021       break;
1022     }
1023     req->done = TRUE;
1024     req->nbytes += len;
1025 #ifndef __WXGTK__
1026     DestroyCallbacks();
1027 #endif
1028     break;
1029   default:
1030     return FALSE;
1031   }
1032   return TRUE;
1033 }
1034
1035 void wxSocketBase::WantSpeedBuffer(char *buffer, size_t nbytes,
1036                                    wxRequestEvent evt)
1037 {
1038   int ret = 0;
1039
1040   switch (evt) {
1041   case EVT_PEEK:
1042   case EVT_READ:
1043     ret = recv(m_fd, buffer, nbytes,
1044                (evt == EVT_PEEK) ? MSG_PEEK : 0);
1045     break;
1046   case EVT_WRITE:
1047     ret = send(m_fd, buffer, nbytes, 0);
1048     break;
1049   }
1050   if (ret < 0) {
1051     m_lcount = 0;
1052     m_error = errno;
1053   } else {
1054     m_lcount = ret;
1055     m_error = 0;
1056   }
1057 }
1058
1059 void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
1060                               wxRequestEvent evt)
1061 {
1062   bool buf_timed_out;
1063
1064   if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
1065     return;
1066
1067   if (m_flags & SPEED) {
1068     WantSpeedBuffer(buffer, nbytes, evt);
1069     return;
1070   }
1071
1072   SockRequest *buf = new SockRequest;
1073   wxSockWakeUp s_wake(NULL, (int *)&buf_timed_out, (int)TRUE);
1074
1075   m_wantbuf++;
1076   req_list[evt].Append(buf);
1077
1078   SaveState();
1079   SetNotify(REQ_LOST | EventToNotify(evt));
1080   SetupCallbacks();
1081   buf->buffer = buffer;
1082   buf->size = nbytes;
1083   buf->done = FALSE;
1084   buf->type = evt;
1085   buf->nbytes = 0;
1086   buf->auto_wakeup = &s_wake;
1087   buf->error = 0;
1088   buf_timed_out = FALSE;
1089
1090   s_wake.Start(m_timeout*1000, TRUE);
1091   if (m_flags & NOWAIT) {
1092     DoRequests(evt);
1093   } else {
1094     while (!buf->done && !buf_timed_out)
1095       PROCESS_EVENTS();
1096   }
1097   m_wantbuf--;
1098   m_lcount = buf->nbytes;
1099   if (buf_timed_out)
1100     m_error = ETIMEDOUT;
1101   else
1102     m_error = buf->error;
1103
1104   delete buf;
1105   RestoreState();
1106 }
1107
1108 // --------------------------------------------------------------
1109 // wxSocketServer ///////////////////////////////////////////////
1110 // --------------------------------------------------------------
1111
1112 // --------------------------------------------------------------
1113 // --------- wxSocketServer CONSTRUCTOR -------------------------
1114 // --------------------------------------------------------------
1115 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
1116                                wxSockFlags flags) :
1117   wxSocketBase(flags, SOCK_SERVER)
1118 {
1119   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1120
1121   if (m_fd == INVALID_SOCKET)
1122     return;
1123
1124   int flag = 1;
1125   setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
1126
1127   struct sockaddr *myaddr;
1128   size_t len;
1129
1130   addr_man.Build(myaddr, len);
1131   if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
1132     return;
1133
1134   if (listen(m_fd, 5) < 0) {
1135     m_fd = INVALID_SOCKET;
1136     return;
1137   }
1138 }
1139
1140 // --------------------------------------------------------------
1141 // --------- wxSocketServer Accept ------------------------------
1142 // --------------------------------------------------------------
1143 bool wxSocketServer::AcceptWith(wxSocketBase& sock)
1144 {
1145   int fd2;
1146
1147   if ((fd2 = accept(m_fd, 0, 0)) < 0)
1148     return FALSE;
1149
1150   struct linger linger;
1151   linger.l_onoff = 0;
1152   linger.l_linger = 1;
1153
1154   setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1155
1156   int flag = 0;
1157   setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1158
1159   if (!(sock.m_flags & SPEED)) {
1160     unsigned long flag2 = 1;
1161     ioctl(fd2, FIONBIO, &flag2);
1162   }
1163
1164   sock.m_type = SOCK_INTERNAL;
1165   sock.m_fd = fd2;
1166   sock.m_connected = TRUE;
1167
1168   return TRUE;
1169 }
1170
1171 wxSocketBase *wxSocketServer::Accept()
1172 {
1173   wxSocketBase* sock = new wxSocketBase();
1174
1175   sock->SetFlags((wxSockFlags)m_flags);
1176
1177   if (!AcceptWith(*sock))
1178     return NULL;
1179
1180   if (m_handler)
1181     m_handler->Register(sock);
1182
1183   return sock;
1184 }
1185
1186 // --------------------------------------------------------------
1187 // --------- wxSocketServer callbacks ---------------------------
1188 // --------------------------------------------------------------
1189 void wxSocketServer::OnRequest(wxRequestEvent evt)
1190 {
1191   if (evt == EVT_ACCEPT) {
1192     OldOnNotify(EVT_ACCEPT);
1193   }
1194 }
1195
1196 // --------------------------------------------------------------
1197 // wxSocketClient ///////////////////////////////////////////////
1198 // --------------------------------------------------------------
1199
1200 // --------- wxSocketClient CONSTRUCTOR -------------------------
1201 // --------------------------------------------------------------
1202 wxSocketClient::wxSocketClient(wxSockFlags _flags) :
1203         wxSocketBase(_flags, SOCK_CLIENT)
1204 {
1205 }
1206
1207 // --------------------------------------------------------------
1208 // --------- wxSocketClient DESTRUCTOR --------------------------
1209 // --------------------------------------------------------------
1210 wxSocketClient::~wxSocketClient()
1211 {
1212 }
1213
1214 // --------------------------------------------------------------
1215 // --------- wxSocketClient Connect functions -------------------
1216 // --------------------------------------------------------------
1217 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
1218 {
1219   struct linger linger;
1220
1221   if (IsConnected())
1222     Close();
1223
1224   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1225
1226   if (m_fd < 0)
1227     return FALSE;
1228
1229   m_connected = FALSE;
1230
1231   linger.l_onoff = 1;
1232   linger.l_linger = 5;
1233   setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1234
1235   // Stay in touch with the state of things...
1236
1237   unsigned long flag = 1;
1238   setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1239
1240   // Disable the nagle algorithm, which delays sends till the
1241   // buffer is full (or a certain time period has passed?)...
1242
1243 #if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
1244   flag = 1;
1245   setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
1246 #endif
1247
1248   struct sockaddr *remote;
1249   size_t len;
1250
1251   addr_man.Build(remote, len);
1252
1253   if (connect(m_fd, remote, len) != 0)
1254     return FALSE;
1255
1256   if (!(m_flags & SPEED)) {
1257     flag = 1;
1258     ioctl(m_fd, FIONBIO, &flag);
1259   }
1260
1261   Notify(TRUE);
1262
1263   m_connected = TRUE;
1264   return TRUE;
1265 }
1266
1267 bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
1268 {
1269   int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
1270
1271   if (ret)
1272     m_connected = TRUE;
1273
1274   return m_connected;
1275 }
1276
1277 void wxSocketClient::OnRequest(wxRequestEvent evt)
1278 {
1279   if (evt == EVT_CONNECT) {
1280     if (m_connected) {
1281       SetNotify(m_neededreq & ~REQ_CONNECT);
1282       return;
1283     }
1284     m_waitflags = 0x40;
1285     m_connected = TRUE;
1286     OldOnNotify(EVT_CONNECT);
1287     DestroyCallbacks();
1288     return;
1289   }
1290   wxSocketBase::OnRequest(evt);
1291 }
1292
1293 /////////////////////////////////////////////////////////////////
1294 // wxSocketHandler ///////////////////////////////////////////////
1295 /////////////////////////////////////////////////////////////////
1296
1297 wxSocketHandler *wxSocketHandler::master = NULL;
1298 #if defined(__WINDOWS__)
1299 static int win_initialized = 0;
1300 #endif
1301
1302 // --------------------------------------------------------------
1303 // --------- wxSocketHandler CONSTRUCTOR ------------------------
1304 // --------------------------------------------------------------
1305 #ifdef __WINDOWS__
1306
1307 extern char wxPanelClassName[];
1308
1309 LRESULT APIENTRY _EXPORT wxSocketHandlerWndProc(HWND hWnd, UINT message,
1310    WPARAM wParam, LPARAM lParam)
1311 {
1312   if(message==WM_DESTROY)
1313   {
1314           ::SetWindowLong(hWnd, GWL_WNDPROC, (LONG) DefWindowProc);
1315           return DefWindowProc(hWnd, message, wParam, lParam);
1316   }
1317   wxSocketHandler *h_sock = (wxSocketHandler *)GetWindowLong(hWnd, GWL_USERDATA);
1318   wxNode *node = h_sock->smsg_list->Find(message);
1319   wxSocketBase *sock;
1320   wxSocketBase::wxRequestEvent sk_req;
1321   UINT event = WSAGETSELECTEVENT(lParam);
1322
1323   if (!node)
1324     return DefWindowProc(hWnd, message, wParam, lParam);
1325
1326   sock = (wxSocketBase *)node->Data();
1327
1328   switch (event) {
1329   case FD_READ:
1330     sk_req = wxSocketBase::EVT_READ;
1331     break;
1332   case FD_WRITE:
1333     sk_req = wxSocketBase::EVT_WRITE;
1334     break;
1335   case FD_CLOSE:
1336     sk_req = wxSocketBase::EVT_LOST;
1337     break;
1338   case FD_ACCEPT:
1339     sk_req = wxSocketBase::EVT_ACCEPT;
1340     break;
1341   case FD_CONNECT:
1342     sk_req = wxSocketBase::EVT_CONNECT;
1343     break;
1344   }
1345   sock->OnRequest(sk_req);
1346
1347   return (LRESULT)0;
1348 }
1349
1350 FARPROC wxSocketSubClassProc = NULL;
1351
1352 #endif
1353
1354 wxSocketHandler::wxSocketHandler()
1355 {
1356 #if defined(__WINDOWS__)
1357   if (!win_initialized) {
1358     WSADATA wsaData;
1359
1360     WSAStartup((1 << 8) | 1, &wsaData);
1361     win_initialized = 1;
1362   }
1363   internal = new wxSockHandlerInternal;
1364   internal->sockWin = ::CreateWindow(wxPanelClassName, NULL, 0,
1365                 0, 0, 0, 0, NULL, (HMENU) NULL,
1366                 wxhInstance, 0);
1367
1368   // Subclass the window
1369   if (!wxSocketSubClassProc)
1370     wxSocketSubClassProc = MakeProcInstance((FARPROC) wxSocketHandlerWndProc, wxhInstance);
1371   ::SetWindowLong(internal->sockWin, GWL_WNDPROC, (LONG) wxSocketSubClassProc);
1372   ::SetWindowLong(internal->sockWin, GWL_USERDATA, (LONG) this);
1373
1374   internal->firstAvailableMsg = 5000;
1375   smsg_list = new wxList(wxKEY_INTEGER);
1376 #endif
1377
1378   socks = new wxList;
1379
1380 #ifndef __WINDOWS__
1381   signal(SIGPIPE, SIG_IGN);
1382 #endif
1383 }
1384
1385 // --------------------------------------------------------------
1386 // --------- wxSocketHandler DESTRUCTOR -------------------------
1387 // --------------------------------------------------------------
1388 wxSocketHandler::~wxSocketHandler()
1389 {
1390   wxNode *next_node, *node = socks->First();
1391
1392   while (node) {
1393     wxSocketBase* sock = (wxSocketBase*)node->Data();
1394
1395     delete sock;
1396     next_node = node->Next();
1397     delete node;
1398     node = next_node;
1399   }
1400
1401   delete socks;
1402
1403 #ifdef __WINDOWS__
1404   delete smsg_list;
1405
1406   ::DestroyWindow(internal->sockWin);
1407   WSACleanup();
1408   win_initialized = 0;
1409
1410   delete internal;
1411 #endif
1412 }
1413
1414 // --------------------------------------------------------------
1415 // --------- wxSocketHandler registering functions --------------
1416 // --------------------------------------------------------------
1417 void wxSocketHandler::Register(wxSocketBase* sock)
1418 {
1419   wxNode *node;
1420
1421   for (node = socks->First(); node != NULL; node = node->Next()) {
1422     wxSocketBase* s = (wxSocketBase*)node->Data();
1423
1424     if (s == sock)
1425       return;
1426   }
1427
1428   if (sock) {
1429     socks->Append(sock);
1430     sock->SetHandler(this);
1431     sock->SetupCallbacks();
1432   }
1433 }
1434
1435 void wxSocketHandler::UnRegister(wxSocketBase* sock)
1436 {
1437   wxNode *node;
1438
1439   for (node = socks->First(); node; node = node->Next()) {
1440     wxSocketBase* s = (wxSocketBase*)node->Data();
1441
1442     if (s == sock) {
1443       delete node;
1444       sock->DestroyCallbacks();
1445       sock->SetHandler(NULL);
1446       return;
1447     }
1448   }
1449 }
1450
1451 unsigned long wxSocketHandler::Count() const
1452 {
1453   return socks->Number();
1454 }
1455
1456 // --------------------------------------------------------------
1457 // --------- wxSocketHandler "big" wait functions ---------------
1458 // --------------------------------------------------------------
1459 void handler_cbk(wxSocketBase& sock,
1460                  wxSocketBase::wxRequestEvent WXUNUSED(flags),
1461                  char *cdata)
1462 {
1463   int *a_wait = (int *)cdata;
1464
1465   (*a_wait)++;
1466   sock.Notify(FALSE);
1467 }
1468
1469 int wxSocketHandler::Wait(long seconds, long microseconds)
1470 {
1471   int i;
1472   int on_wait;
1473   wxSockWakeUp s_wake(NULL, &on_wait, -2);
1474   wxNode *node;
1475
1476   for (node = socks->First(), i=0; node; node = node->Next(), i++) {
1477     wxSocketBase *sock = (wxSocketBase *)node->Data();
1478
1479     sock->SaveState();
1480
1481     sock->SetupCallbacks();
1482
1483     sock->Callback(handler_cbk);
1484     sock->CallbackData((char *)&on_wait);
1485   }
1486   on_wait = 0;
1487   if (seconds != -1)
1488     s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
1489
1490   while (!on_wait)
1491     PROCESS_EVENTS();
1492
1493   for (node = socks->First(), i=0; node; node = node->Next(), i++) {
1494     wxSocketBase *sock = (wxSocketBase *)node->Data();
1495
1496     sock->RestoreState();
1497   }
1498
1499   if (on_wait == -2)
1500     return 0;
1501
1502   return on_wait;
1503 }
1504
1505 void wxSocketHandler::YieldSock()
1506 {
1507   wxNode *node;
1508
1509   for (node = socks->First(); node; node = node->Next() ) {
1510     wxSocketBase *sock = (wxSocketBase *)node->Data();
1511
1512     sock->SaveState();
1513
1514     sock->SetFlags(wxSocketBase::SPEED);
1515     if (sock->IsData())
1516       sock->DoRequests(wxSocketBase::EVT_READ);
1517     sock->DoRequests(wxSocketBase::EVT_WRITE);
1518
1519     sock->RestoreState();
1520   }
1521 }
1522
1523 // --------------------------------------------------------------
1524 // --------- wxSocketHandler: create and register the socket ----
1525 // --------------------------------------------------------------
1526 wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
1527                                               wxSocketBase::wxSockFlags flags)
1528 {
1529   wxSocketServer *serv = new wxSocketServer(addr, flags);
1530
1531   Register(serv);
1532   return serv;
1533 }
1534
1535 wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
1536 {
1537   wxSocketClient *client = new wxSocketClient(flags);
1538
1539   Register(client);
1540   return client;
1541 }
1542
1543 #ifdef __WINDOWS__
1544 // --------------------------------------------------------------
1545 // --------- wxSocketHandler: Windows specific methods ----------
1546 // --------------------------------------------------------------
1547 UINT wxSocketHandler::NewMessage(wxSocketBase *sock)
1548 {
1549   internal->firstAvailableMsg++;
1550   smsg_list->Append(internal->firstAvailableMsg, sock);
1551   return internal->firstAvailableMsg;
1552 }
1553
1554 void wxSocketHandler::DestroyMessage(UINT msg)
1555 {
1556   wxNode *node = smsg_list->Find(msg);
1557   delete node;
1558 }
1559
1560 HWND wxSocketHandler::GetHWND() const
1561 {
1562   return internal->sockWin;
1563 }
1564
1565 #endif
1566
1567 bool wxSocketModule::OnInit() {
1568   wxSocketHandler::master = new wxSocketHandler();
1569   return TRUE;
1570 }
1571
1572 void wxSocketModule::OnExit() {
1573   delete wxSocketHandler::master;
1574   wxSocketHandler::master = NULL;
1575 }
1576
1577 #endif
1578   // __WXSTUBS__