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 #ifdef __MWERKS__
  19 typedef int socklen_t ;
  20 #endif
  21
  22 // For compilers that support precompilation, includes "wx.h".
  23 #include "wx/wxprec.h"
  24
  25 #ifdef __BORLANDC__
  26 #pragma hdrstop
  27 #endif
  28
  29 /////////////////////////////////////////////////////////////////////////////
  30 // wxWindows headers
  31 /////////////////////////////////////////////////////////////////////////////
  32 #include <wx/defs.h>
  33 #include <wx/object.h>
  34 #include <wx/string.h>
  35 #include <wx/timer.h>
  36 #include <wx/utils.h>
  37
  38 // Not enough OS behaviour defined for wxStubs
  39 #ifndef __WXSTUBS__
  40
  41 #include <stdlib.h>
  42 #include <string.h>
  43 #include <ctype.h>
  44
  45 /////////////////////////////////////////////////////////////////////////////
  46 // System specific headers
  47 /////////////////////////////////////////////////////////////////////////////
  48 #ifdef __WXMAC__
  49 // in order to avoid problems with our c library and double definitions
  50 #define close closesocket
  51 #define ioctl ioctlsocket
  52
  53 #include <wx/mac/macsock.h>
  54 extern GUSISpinFn GUSISpin;
  55 #define PROCESS_EVENTS() wxMacProcessEvents()
  56 const short kwxMacNetEventsMax = 1000 ;
  57 short wxMacNetEventsTop = 0 ;
  58 short wxMacNetEventsBottom = 0 ;
  59 short wxMacNetEventsEvents[kwxMacNetEventsMax] ;
  60 void *wxMacNetEventsReferences[kwxMacNetEventsMax] ;
  61
  62 #define FD_READ 1
  63 #define FD_WRITE 2
  64 #define FD_CLOSE 4
  65 #define FD_ACCEPT 8
  66 #define FD_CONNECT 16
  67 #define FD_READY 32
  68
  69 extern "C" void wxMacSocketHandlerProc( void *refcon , short event ) ; // adds events
  70 extern "C" void wxMacSocketOnRequestProc( void *refcon , short event ) ; // consumes them
  71 extern "C" void GUSISetReference( short sock , short eventmask , void * data ) ;
  72 void wxMacProcessEvents() ;
  73 #endif
  74
  75 #if defined(__WINDOWS__)
  76 #include <winsock.h>
  77 #endif // __WINDOWS__
  78
  79 #if defined(__UNIX__)
  80
  81 #ifdef VMS
  82 #include <socket.h>
  83 #else
  84 #include <sys/socket.h>
  85 #endif
  86 #include <sys/ioctl.h>
  87
  88 #include <sys/time.h>
  89 #include <unistd.h>
  90
  91 #ifdef sun
  92 #include <sys/filio.h>
  93 #endif
  94
  95 #endif // __UNIX__
  96
  97 #include <signal.h>
  98 #include <errno.h>
  99
 100 #ifdef _MSC_VER
 101 #include <io.h>
 102 #endif
 103
 104 #if defined(__WXMOTIF__) || defined(__WXXT__)
 105 #include <X11/Intrinsic.h>
 106
 107 /////////////////////////////
 108 // Needs internal variables
 109 /////////////////////////////
 110 #ifdef __WXXT__
 111 #define Uses_XtIntrinsic
 112 #endif
 113
 114 #endif
 115
 116 #if defined(__WXGTK__)
 117 #include <gtk/gtk.h>
 118 #endif
 119
 120 /////////////////////////////////////////////////////////////////////////////
 121 // wxSocket headers
 122 /////////////////////////////////////////////////////////////////////////////
 123 #include "wx/module.h"
 124 #define WXSOCK_INTERNAL
 125 #include "wx/sckaddr.h"
 126 #include "wx/socket.h"
 127
 128 /////////////////////////////////////////////////////////////////////////////
 129 // Some patch ///// BEGIN
 130 /////////////////////////////////////////////////////////////////////////////
 131 #ifdef __WINDOWS__
 132 #define close closesocket
 133 #define ioctl ioctlsocket
 134 #ifdef errno
 135 #undef errno
 136 #endif
 137 #define errno WSAGetLastError()
 138 #ifdef EWOULDBLOCK
 139 #undef EWOULDBLOCK
 140 #endif
 141 #define EWOULDBLOCK WSAEWOULDBLOCK
 142 #define ETIMEDOUT WSAETIMEDOUT
 143 #undef EINTR
 144 #define EINTR WSAEINTR
 145 #endif
 146
 147 #ifndef __WINDOWS__
 148 #define INVALID_SOCKET -1
 149 #endif
 150
 151 #ifdef __WXMOTIF__
 152 #define wxAPP_CONTEXT ((XtAppContext)wxTheApp->GetAppContext())
 153 #endif
 154
 155 #ifdef __WINDOWS__
 156 // This is an MS TCP/IP routine and is not needed here. Some WinSock
 157 // implementations (such as PC-NFS) will require you to include this
 158 // or a similar routine (see appendix in WinSock doc or help file).
 159
 160 #if defined( NEED_WSAFDIsSet ) || defined( _MSC_VER )
 161 int PASCAL FAR __WSAFDIsSet(SOCKET fd, fd_set FAR *set)
 162 {
 163   int i = set->fd_count;
 164
 165   while (i--)
 166   {
 167     if (set->fd_array[i] == fd)
 168       return 1;
 169   }
 170
 171   return 0;
 172 }
 173 #endif
 174 #endif
 175
 176 #if defined(__WINDOWS__)
 177 #define PROCESS_EVENTS() wxYield()
 178 #elif defined(__WXXT__) || defined(__WXMOTIF__)
 179 #define PROCESS_EVENTS() XtAppProcessEvent(wxAPP_CONTEXT, XtIMAll)
 180 #elif defined(__WXGTK__)
 181 #define PROCESS_EVENTS() gtk_main_iteration()
 182 #endif
 183
 184 /////////////////////////////////////////////////////////////////////////////
 185 // Some patch ///// END
 186 /////////////////////////////////////////////////////////////////////////////
 187
 188 // --------------------------------------------------------------
 189 // Module
 190 // --------------------------------------------------------------
 191 class wxSocketModule: public wxModule
 192 {
 193   DECLARE_DYNAMIC_CLASS(wxSocketModule)
 194 public:
 195   wxSocketModule() {}
 196   bool OnInit();
 197   void OnExit();
 198 };
 199
 200 // --------------------------------------------------------------
 201 // ClassInfos
 202 // --------------------------------------------------------------
 203 #if !USE_SHARED_LIBRARY
 204 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 205 IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
 206 IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
 207 IMPLEMENT_CLASS(wxSocketHandler, wxObject)
 208 IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
 209 IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
 210 #endif
 211
 212 class wxSockWakeUp : public wxTimer
 213 {
 214 public:
 215   int *my_id;
 216   int n_val;
 217   wxSocketBase *sock;
 218
 219   wxSockWakeUp(wxSocketBase *_sock, int *id, int new_val)
 220   {
 221     my_id = id; n_val = new_val;
 222     sock = _sock;
 223   }
 224   virtual void Notify()
 225   {
 226     *my_id = n_val;
 227     if (sock) sock->Notify(FALSE);
 228   }
 229 };
 230
 231 /// Socket request
 232 class SockRequest : public wxObject
 233 {
 234 public:
 235   char *buffer;
 236   size_t size, nbytes;
 237   bool done;
 238   int error;
 239   wxSockWakeUp *auto_wakeup;
 240   wxSocketBase::wxRequestNotify type;
 241 };
 242
 243
 244 /////////////////////////////////////////////////////////////////////////////
 245 // Some internal define
 246 /////////////////////////////////////////////////////////////////////////////
 247
 248 // --------------------------------------------------------------
 249 // --------- wxSocketBase CONSTRUCTOR ---------------------------
 250 // --------------------------------------------------------------
 251 wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
 252          wxSocketBase::wxSockType _type) :
 253   wxEvtHandler(),
 254   m_flags(_flags), m_type(_type), m_connected(FALSE), m_connecting(FALSE),
 255   m_fd(INVALID_SOCKET), m_waitflags(0), m_cbk(0), m_cdata(0), m_id(-1),
 256   m_handler(0),
 257   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 258   m_cbkon(FALSE),
 259   m_unread(NULL), m_unrd_size(0),
 260   m_processing(FALSE),
 261   m_timeout(3600), m_wantbuf(0)
 262 {
 263   m_internal = new wxSockInternal;
 264 #if defined(__WXXT__) || defined(__WXMOTIF__) || defined(__WXGTK__)
 265   m_internal->sock_inputid = 0;
 266   m_internal->sock_outputid = 0;
 267   m_internal->sock_exceptid = 0;
 268 #endif
 269 #ifdef __WINDOWS__
 270   m_internal->my_msg = 0;
 271 #endif
 272 }
 273
 274 wxSocketBase::wxSocketBase() :
 275   wxEvtHandler(),
 276   m_flags(WAITALL), m_type(SOCK_UNINIT), m_connected(FALSE),
 277   m_connecting(FALSE), m_fd(INVALID_SOCKET), m_waitflags(0),
 278   m_cbk(0), m_cdata(0),
 279   m_id(-1), m_handler(0),
 280   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 281   m_cbkon(FALSE),
 282   m_unread(NULL), m_unrd_size(0),
 283   m_processing(FALSE),
 284   m_timeout(3600), m_wantbuf(0)
 285 {
 286   m_internal = new wxSockInternal;
 287 #if defined(__WXXT__) || defined(__WXMOTIF__) || defined(__WXGTK__)
 288   m_internal->sock_inputid = 0;
 289   m_internal->sock_outputid = 0;
 290   m_internal->sock_exceptid = 0;
 291 #endif
 292 #ifdef __WINDOWS__
 293   m_internal->my_msg = 0;
 294 #endif
 295 }
 296
 297 // --------------------------------------------------------------
 298 // wxSocketBase
 299 // --------------------------------------------------------------
 300
 301 wxSocketBase::~wxSocketBase()
 302 {
 303   DestroyCallbacks();
 304   Close();
 305
 306   if (m_unread)
 307     free(m_unread);
 308   if (m_handler)
 309   {
 310 #ifdef __WINDOWS__
 311     if (m_internal->my_msg)
 312       m_handler->DestroyMessage(m_internal->my_msg);
 313 #endif
 314     m_handler->UnRegister(this);
 315   }
 316   m_states.DeleteContents(TRUE);
 317
 318   delete m_internal;
 319 }
 320
 321 bool wxSocketBase::Close()
 322 {
 323   if (m_fd != INVALID_SOCKET)
 324   {
 325     for (int i=0;i<3;i++)
 326     {
 327       wxNode *n, *node = req_list[i].First();
 328
 329       while (node)
 330       {
 331         SockRequest *req = (SockRequest *)node->Data();
 332         req->done = TRUE;
 333
 334         n = node->Next();
 335         delete node;
 336         node = n;
 337       }
 338     }
 339
 340     DestroyCallbacks();
 341     shutdown(m_fd, 2);
 342     close(m_fd);
 343     m_fd = INVALID_SOCKET;
 344     m_connected = FALSE;
 345   }
 346
 347   return TRUE;
 348 }
 349
 350 // --------------------------------------------------------------
 351 // wxSocketBase base IO function
 352 // --------------------------------------------------------------
 353
 354 wxSocketBase& wxSocketBase::Read(char* buffer, size_t nbytes)
 355 {
 356   m_lcount = GetPushback(buffer, nbytes, FALSE);
 357
 358   // If we have got the whole needed buffer or if we don't want to
 359   // wait then it returns immediately.
 360   if (!nbytes || (m_lcount && !(m_flags & WAITALL)) )
 361     return *this;
 362
 363   WantBuffer(buffer, nbytes, EVT_READ);
 364
 365   return *this;
 366 }
 367
 368 wxSocketBase& wxSocketBase::Peek(char* buffer, size_t nbytes)
 369 {
 370   size_t nbytes_old = nbytes;
 371
 372   nbytes -= GetPushback(buffer, nbytes, TRUE);
 373   if (!nbytes)
 374   {
 375     m_lcount = nbytes_old;
 376     return *this;
 377   }
 378
 379   WantBuffer(buffer, nbytes, EVT_PEEK);
 380
 381   return *this;
 382 }
 383
 384 wxSocketBase& wxSocketBase::Write(const char *buffer, size_t nbytes)
 385 {
 386   WantBuffer((char *)buffer, nbytes, EVT_WRITE);
 387   return *this;
 388 }
 389
 390 wxSocketBase& wxSocketBase::ReadMsg(char* buffer, size_t nbytes)
 391 {
 392   SockMsg msg;
 393   size_t len, len2, sig;
 394
 395   Read((char *)&msg, sizeof(msg));
 396   if (m_lcount != sizeof(msg))
 397     return *this;
 398
 399   sig = msg.sig[0] & 0xff;
 400   sig |= (size_t)(msg.sig[1] & 0xff) << 8;
 401   sig |= (size_t)(msg.sig[2] & 0xff) << 16;
 402   sig |= (size_t)(msg.sig[3] & 0xff) << 24;
 403
 404   if (sig != 0xfeeddead)
 405     return *this;
 406   len = msg.len[0] & 0xff;
 407   len |= (size_t)(msg.len[1] & 0xff) << 8;
 408   len |= (size_t)(msg.len[2] & 0xff) << 16;
 409   len |= (size_t)(msg.len[3] & 0xff) << 24;
 410   len2 = len;
 411   if (len > nbytes)
 412     len = nbytes;
 413   else
 414     len2 = 0;
 415
 416   if (Read(buffer, len).LastCount() != len)
 417     return *this;
 418   if (len2 && (Read(NULL, len2).LastCount() != len2))
 419     return *this;
 420   if (Read((char *)&msg, sizeof(msg)).LastCount() != sizeof(msg))
 421     return *this;
 422
 423   sig = msg.sig[0] & 0xff;
 424   sig |= (size_t)(msg.sig[1] & 0xff) << 8;
 425   sig |= (size_t)(msg.sig[2] & 0xff) << 16;
 426   sig |= (size_t)(msg.sig[3] & 0xff) << 24;
 427 // ERROR
 428   if (sig != 0xdeadfeed)
 429     return *this;
 430
 431   return *this;
 432 }
 433
 434 wxSocketBase& wxSocketBase::WriteMsg(const char *buffer, size_t nbytes)
 435 {
 436   SockMsg msg;
 437
 438   msg.sig[0] = (char) 0xad;
 439   msg.sig[1] = (char) 0xde;
 440   msg.sig[2] = (char) 0xed;
 441   msg.sig[3] = (char) 0xfe;
 442
 443   msg.len[0] = (char) nbytes & 0xff;
 444   msg.len[1] = (char) (nbytes >> 8) & 0xff;
 445   msg.len[2] = (char) (nbytes >> 16) & 0xff;
 446   msg.len[3] = (char) (nbytes >> 24) & 0xff;
 447
 448   if (Write((char *)&msg, sizeof(msg)).LastCount() < sizeof(msg))
 449     return *this;
 450   if (Write(buffer, nbytes).LastCount() < nbytes)
 451     return *this;
 452
 453   msg.sig[0] = (char) 0xed;
 454   msg.sig[1] = (char) 0xfe;
 455   msg.sig[2] = (char) 0xad;
 456   msg.sig[3] = (char) 0xde;
 457   msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0;
 458   Write((char *)&msg, sizeof(msg));
 459
 460   return *this;
 461 }
 462
 463 wxSocketBase& wxSocketBase::Unread(const char *buffer, size_t nbytes)
 464 {
 465   CreatePushbackAfter(buffer, nbytes);
 466   return *this;
 467 }
 468
 469 bool wxSocketBase::IsData() const
 470 {
 471   struct timeval tv;
 472   fd_set sock_set;
 473
 474   if (m_fd < 0)
 475     return FALSE;
 476   if (m_unrd_size > 0)
 477     return TRUE;
 478
 479   tv.tv_sec = 0;
 480   tv.tv_usec = 0;
 481   FD_ZERO(&sock_set);
 482   FD_SET(m_fd, &sock_set);
 483   select(FD_SETSIZE, &sock_set, NULL, NULL, &tv);
 484   return (FD_ISSET(m_fd, &sock_set) != 0);
 485 }
 486
 487 // ---------------------------------------------------------------------
 488 // --------- wxSocketBase Discard(): deletes all byte in the input queue
 489 // ---------------------------------------------------------------------
 490 void wxSocketBase::Discard()
 491 {
 492 #define MAX_BUFSIZE (10*1024)
 493   char *my_data = new char[MAX_BUFSIZE];
 494   size_t recv_size = MAX_BUFSIZE;
 495
 496   SaveState();
 497   SetFlags((wxSockFlags)(NOWAIT | SPEED));
 498
 499   while (recv_size == MAX_BUFSIZE)
 500   {
 501     recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
 502   }
 503
 504   RestoreState();
 505   delete [] my_data;
 506
 507 #undef MAX_BUFSIZE
 508 }
 509
 510 // If what? Who seems to need unsigned int?
 511 // BTW uint isn't even defined on wxMSW for VC++ for some reason. Even if it
 512 // were, getpeername/getsockname don't take unsigned int*, they take int*.
 513 //
 514 // Under glibc 2.0.7, socketbits.h declares socklen_t to be unsigned int
 515 // and it uses *socklen_t as the 3rd parameter. Robert.
 516
 517 #ifdef __LINUX__
 518 #define wxSOCKET_INT socklen_t
 519 #else
 520 #define wxSOCKET_INT int
 521 #endif
 522
 523 // --------------------------------------------------------------
 524 // wxSocketBase socket info functions
 525 // --------------------------------------------------------------
 526
 527 bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
 528 {
 529   struct sockaddr my_addr;
 530   wxSOCKET_INT len_addr = sizeof(my_addr);
 531
 532   if (m_fd < 0)
 533     return FALSE;
 534
 535   if (getpeername(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0)
 536     return FALSE;
 537
 538   addr_man.Disassemble(&my_addr, len_addr);
 539   return TRUE;
 540 }
 541
 542 bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
 543 {
 544   struct sockaddr my_addr;
 545   wxSOCKET_INT len_addr = sizeof(my_addr);
 546
 547   if (m_fd < 0)
 548     return FALSE;
 549
 550   if (getsockname(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0)
 551
 552     return FALSE;
 553
 554   addr_man.Disassemble(&my_addr, len_addr);
 555   return TRUE;
 556 }
 557
 558 // --------------------------------------------------------------
 559 // wxSocketBase wait functions
 560 // --------------------------------------------------------------
 561
 562 void wxSocketBase::SaveState()
 563 {
 564   wxSockState *state = new wxSockState;
 565
 566   state->cbk_on = m_cbkon;
 567   state->cbk_set= m_neededreq;
 568   state->cbk    = m_cbk;
 569   state->cdata  = m_cdata;
 570   state->flags  = m_flags;
 571   state->notif  = m_notifyme;
 572
 573   m_states.Append(state);
 574 }
 575
 576 void wxSocketBase::RestoreState()
 577 {
 578   wxNode *node;
 579
 580   node = m_states.Last();
 581   if (!node)
 582     return;
 583
 584   wxSockState *state = (wxSockState *)node->Data();
 585
 586   SetFlags(state->flags);
 587   m_neededreq = state->cbk_set;
 588   m_cbk       = state->cbk;
 589   m_cdata     = state->cdata;
 590   m_notifyme  = state->notif;
 591   if (state->cbk_on)
 592     SetupCallbacks();
 593   else
 594     DestroyCallbacks();
 595
 596   delete node;
 597   delete state;
 598 }
 599
 600 // --------------------------------------------------------------
 601 // --------- wxSocketBase wait functions ------------------------
 602 // --------------------------------------------------------------
 603
 604 bool wxSocketBase::_Wait(long seconds, long microseconds, int type)
 605 {
 606   if ((!m_connected && !m_connecting) || m_fd < 0)
 607     return FALSE;
 608
 609   wxSockWakeUp wakeup(this, &m_waitflags, 0);
 610
 611   SaveState();
 612   SetNotify((wxRequestNotify)type);
 613   SetupCallbacks();
 614
 615   if (seconds != -1)
 616     wakeup.Start((int)(seconds*1000 + (microseconds / 1000)), TRUE);
 617
 618   m_waitflags = 0x80 | type;
 619   while (m_waitflags & 0x80)
 620     PROCESS_EVENTS();
 621
 622   RestoreState();
 623
 624   if (m_waitflags & 0x40)
 625   {
 626     m_waitflags = 0;
 627     return TRUE;
 628   }
 629   m_waitflags = 0;
 630
 631   return FALSE;
 632 }
 633
 634 bool wxSocketBase::Wait(long seconds, long microseconds)
 635 {
 636   return _Wait(seconds, microseconds, REQ_ACCEPT | REQ_CONNECT |
 637                                       REQ_READ | REQ_WRITE | REQ_LOST);
 638 }
 639
 640 bool wxSocketBase::WaitForRead(long seconds, long microseconds)
 641 {
 642   return _Wait(seconds, microseconds, REQ_READ | REQ_LOST);
 643 }
 644
 645 bool wxSocketBase::WaitForWrite(long seconds, long microseconds)
 646 {
 647   return _Wait(seconds, microseconds, REQ_WRITE);
 648 }
 649
 650 bool wxSocketBase::WaitForLost(long seconds, long microseconds)
 651 {
 652   return _Wait(seconds, microseconds, REQ_LOST);
 653 }
 654
 655 // --------------------------------------------------------------
 656 // --------- wxSocketBase callback management -------------------
 657 // --------------------------------------------------------------
 658
 659 #if defined(__WXMOTIF__) || defined(__WXXT__) || defined(__WXGTK__)
 660 #if defined(__WXMOTIF__) || defined(__WXXT__)
 661 static void wx_socket_read(XtPointer client, int *fid,
 662          XtInputId *WXUNUSED(id))
 663 #define fd *fid
 664 #else
 665 static void wx_socket_read(gpointer client, gint fd,
 666                            GdkInputCondition WXUNUSED(cond))
 667 #define fd fd
 668 #endif
 669 {
 670   wxSocketBase *sock = (wxSocketBase *)client;
 671   char c;
 672   int i;
 673
 674   i = recv(fd, &c, 1, MSG_PEEK);
 675
 676   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT))
 677   {
 678     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 679     return;
 680   }
 681
 682   if (i != 0)
 683   {
 684     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 685     {
 686       return;
 687     }
 688
 689     sock->OnRequest(wxSocketBase::EVT_READ);
 690   }
 691   else
 692   {
 693     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST))
 694     {
 695       sock->Close();
 696       return;
 697     }
 698
 699     sock->OnRequest(wxSocketBase::EVT_LOST);
 700   }
 701 }
 702 #undef fd
 703
 704 #if defined(__WXMOTIF__) || defined(__WXXT__)
 705 static void wx_socket_write(XtPointer client, int *WXUNUSED(fid),
 706           XtInputId *WXUNUSED(id))
 707 #else
 708 static void wx_socket_write(gpointer client, gint WXUNUSED(fd),
 709           GdkInputCondition WXUNUSED(cond))
 710 #endif
 711 {
 712   wxSocketBase *sock = (wxSocketBase *)client;
 713
 714   if (!sock->IsConnected())
 715     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 716   else
 717     sock->OnRequest(wxSocketBase::EVT_WRITE);
 718 }
 719 #endif
 720
 721 #ifdef wx_xview
 722 Notify_value wx_sock_read_xview (Notify_client client, int fd)
 723 {
 724   wxSocketBase *sock = (wxSocketBase *)client;
 725   char c;
 726   int i;
 727
 728   i = recv(fd, &c, 1, MSG_PEEK);
 729
 730   if (i == -1 && (sock->NeededReq() & wxSocketBase::REQ_ACCEPT))
 731   {
 732     sock->OnRequest(wxSocketBase::EVT_ACCEPT);
 733     return;
 734   }
 735
 736   /* Bytes arrived */
 737   if (i != 0)
 738   {
 739     if (!(sock->NeededReq() & wxSocketBase::REQ_READ))
 740       return (Notify_value) FALSE;
 741
 742     sock->OnRequest(wxSocketBase::EVT_READ);
 743   }
 744   else
 745   {
 746     if (!(sock->NeededReq() & wxSocketBase::REQ_LOST))
 747       return;
 748
 749     sock->OnRequest(wxSocketBase::EVT_LOST);
 750   }
 751
 752   return (Notify_value) FALSE;
 753 }
 754
 755 Notify_value wx_sock_write_xview (Notify_client client, int fd)
 756 {
 757   wxSocketBase *sock = (wxSocketBase *)client;
 758
 759   if (!sock->IsConnected())
 760     sock->OnRequest(wxSocketBase::EVT_CONNECT);
 761   else
 762     sock->OnRequest(wxSocketBase::EVT_WRITE);
 763
 764   return (Notify_value) TRUE;
 765 }
 766 #endif
 767
 768 wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
 769 {
 770   switch (evt)
 771   {
 772   case EVT_READ:
 773     return REQ_READ;
 774   case EVT_PEEK:
 775     return REQ_PEEK;
 776   case EVT_WRITE:
 777     return REQ_WRITE;
 778   case EVT_LOST:
 779     return REQ_LOST;
 780   case EVT_ACCEPT:
 781     return REQ_ACCEPT;
 782   case EVT_CONNECT:
 783     return REQ_CONNECT;
 784   }
 785   return 0;
 786 }
 787
 788 void wxSocketBase::SetFlags(wxSockFlags _flags)
 789 {
 790   m_flags = _flags;
 791   if (_flags & SPEED)
 792   {
 793     unsigned long flag = 0;
 794     ioctl(m_fd, FIONBIO, &flag);
 795
 796     // SPEED and WAITALL are antagonists.
 797     m_flags = (wxSockFlags)(m_flags & ~WAITALL);
 798
 799     Notify(FALSE);
 800   }
 801   else
 802   {
 803     unsigned long flag = 1;
 804     ioctl(m_fd, FIONBIO, &flag);
 805   }
 806 }
 807
 808 void wxSocketBase::SetNotify(wxRequestNotify flags)
 809 {
 810   wxRequestNotify old_needed_req = m_neededreq;
 811   if (flags & REQ_ACCEPT)
 812   {
 813     /* Check if server */
 814     if (!(GetClassInfo()->IsKindOf(CLASSINFO(wxSocketServer))))
 815       flags &= ~REQ_ACCEPT;
 816   }
 817   m_neededreq = flags;
 818
 819 /*
 820   if (m_cbkon && old_needed_req != flags)    seems to be wrong, Robert Roebling
 821     SetupCallbacks();
 822 */
 823
 824   if (old_needed_req != flags)
 825     SetupCallbacks();
 826 }
 827
 828 void wxSocketBase::SetupCallbacks()
 829 {
 830   if (m_fd == INVALID_SOCKET || !m_handler || (m_flags & SPEED))
 831     return;
 832
 833 #if defined(__WXMOTIF__) || defined(__WXXT__)
 834   if (m_neededreq & (REQ_ACCEPT | REQ_READ | REQ_LOST))
 835   {
 836     if (m_internal->sock_inputid <= 0)
 837     {
 838       m_internal->sock_inputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 839                                         (XtPointer *) XtInputReadMask,
 840                                         (XtInputCallbackProc) wx_socket_read,
 841                                         (XtPointer) this);
 842     }
 843   }
 844   else
 845   {
 846     if (m_internal->sock_inputid > 0)
 847     {
 848       XtRemoveInput(m_internal->sock_inputid);
 849       m_internal->sock_inputid = 0;
 850     }
 851   }
 852
 853   if (m_neededreq & (REQ_CONNECT | REQ_WRITE))
 854   {
 855     if (m_internal->sock_outputid <= 0)
 856     {
 857       m_internal->sock_outputid = XtAppAddInput (wxAPP_CONTEXT, m_fd,
 858                                         (XtPointer *) XtInputWriteMask,
 859                                         (XtInputCallbackProc) wx_socket_write,
 860                                         (XtPointer) this);
 861     }
 862   }
 863   else
 864   {
 865     if (m_internal->sock_outputid > 0)
 866     {
 867       XtRemoveInput(m_internal->sock_outputid);
 868       m_internal->sock_outputid = 0;
 869     }
 870   }
 871 #endif
 872
 873
 874 #ifdef __WXGTK__
 875   if (m_neededreq & (REQ_ACCEPT | REQ_READ | REQ_LOST))
 876   {
 877     if (m_internal->sock_inputid <= 0)
 878     {
 879        m_internal->sock_inputid = gdk_input_add(m_fd, GDK_INPUT_READ,
 880                                            wx_socket_read, (gpointer)this);
 881     }
 882   }
 883   else
 884   {
 885     if (m_internal->sock_inputid > 0)
 886     {
 887 /*
 888       gdk_input_remove(m_internal->sock_inputid);
 889       m_internal->sock_inputid = 0;
 890 */
 891     }
 892   }
 893
 894   if (m_neededreq & (REQ_CONNECT | REQ_WRITE))
 895   {
 896     if (m_internal->sock_outputid <= 0)
 897     {
 898       m_internal->sock_outputid = gdk_input_add(m_fd, GDK_INPUT_WRITE,
 899                                              wx_socket_write, (gpointer)this);
 900     }
 901   }
 902   else
 903   {
 904     if (m_internal->sock_outputid > 0)
 905     {
 906 /*
 907       gdk_input_remove(m_internal->sock_outputid);
 908       m_internal->sock_outputid = 0;
 909 */
 910     }
 911   }
 912 #endif
 913
 914
 915 #ifdef __WXMSW__
 916   WORD mask = 0;
 917
 918   if (m_neededreq & REQ_READ)
 919     mask |= FD_READ;
 920   if (m_neededreq & REQ_WRITE)
 921     mask |= FD_WRITE;
 922   if (m_neededreq & REQ_LOST)
 923     mask |= FD_CLOSE;
 924   if (m_neededreq & REQ_ACCEPT)
 925     mask |= FD_ACCEPT;
 926   if (m_neededreq & REQ_CONNECT)
 927     mask |= FD_CONNECT;
 928
 929   if (!m_internal->my_msg)
 930     m_internal->my_msg = m_handler->NewMessage(this);
 931   WSAAsyncSelect(m_fd, m_handler->GetHWND(), m_internal->my_msg, mask);
 932 #endif
 933 #ifdef __WXMAC__
 934   short mask = 0;
 935
 936   if (m_neededreq & REQ_READ)
 937     mask |= FD_READ;
 938   if (m_neededreq & REQ_WRITE)
 939     mask |= FD_WRITE;
 940   if (m_neededreq & REQ_LOST)
 941     mask |= FD_CLOSE;
 942   if (m_neededreq & REQ_ACCEPT)
 943     mask |= FD_ACCEPT;
 944   if (m_neededreq & REQ_CONNECT)
 945     mask |= FD_CONNECT;
 946
 947   GUSISetReference( m_fd ,mask, this ) ;
 948   unsigned long flag = 1;
 949   ioctl(m_fd, FIONBIO, &flag);
 950 #endif
 951   m_cbkon = TRUE;
 952   m_processing = FALSE;
 953 }
 954
 955 void wxSocketBase::DestroyCallbacks()
 956 {
 957   if (!m_cbkon || !m_handler)
 958     return;
 959
 960   m_cbkon = FALSE;
 961   m_processing = FALSE;
 962 #if defined(__WXMOTIF__) || defined(__WXXT__)
 963   if (m_internal->sock_inputid > 0)
 964     XtRemoveInput(m_internal->sock_inputid);
 965   m_internal->sock_inputid = 0;
 966   if (m_internal->sock_outputid > 0)
 967     XtRemoveInput(m_internal->sock_outputid);
 968   m_internal->sock_outputid = 0;
 969 #endif
 970 #ifdef __WXGTK__
 971   if (m_internal->sock_inputid > 0)
 972     gdk_input_remove(m_internal->sock_inputid);
 973   m_internal->sock_inputid = 0;
 974   if (m_internal->sock_outputid > 0)
 975     gdk_input_remove(m_internal->sock_outputid);
 976   m_internal->sock_outputid = 0;
 977 #endif
 978 #ifdef __WINDOWS__
 979   WSAAsyncSelect(m_fd, m_handler->GetHWND(), 0, 0);
 980 #endif
 981 #ifdef __WXMAC__
 982   GUSISetReference( m_fd , 0 , 0 ) ;
 983   int bottom = wxMacNetEventsBottom ;
 984   while ( wxMacNetEventsTop != bottom )
 985   {
 986     // set all events that reference this socket to nil
 987     if ( wxMacNetEventsReferences[bottom] == (void*) this )
 988       wxMacNetEventsReferences[bottom] = NULL ;
 989     bottom++ ;
 990     if ( bottom == kwxMacNetEventsMax )
 991       bottom = 0 ;
 992   }
 993   SetFlags( m_flags ) ;
 994 #endif
 995 }
 996
 997 void wxSocketBase::Notify(bool notify)
 998 {
 999   if (m_notifyme == notify)
1000     return;
1001   if (notify)
1002     SetupCallbacks();
1003   else
1004     DestroyCallbacks();
1005   m_notifyme = notify;
1006 }
1007
1008 void wxSocketBase::OnRequest(wxRequestEvent req_evt)
1009 {
1010   wxRequestNotify req_notif = EventToNotify(req_evt);
1011
1012   // Mask the current event
1013   SetNotify(m_neededreq & ~req_notif);
1014
1015   if (req_evt <= EVT_WRITE && DoRequests(req_evt))
1016     return;
1017
1018   if (m_waitflags & 0xF0)
1019   {
1020     // Wake up
1021     if ((m_waitflags & 0x0F) == req_evt)
1022     {
1023       m_waitflags = 0x80;
1024 #ifndef __WXGTK__
1025       DestroyCallbacks();
1026 #endif
1027     }
1028     return;
1029   }
1030
1031   if (req_evt == EVT_LOST)
1032   {
1033     m_connected = FALSE;
1034     Close();
1035   }
1036   if (m_notifyme)
1037     OldOnNotify(req_evt);
1038
1039   // Unmask
1040   SetNotify(m_neededreq | req_notif);
1041 }
1042
1043 wxSocketEvent::wxSocketEvent(int id)
1044   : wxEvent(id)
1045 {
1046   wxEventType type = (wxEventType)wxEVT_SOCKET;
1047
1048   SetEventType(type);
1049 }
1050
1051 void wxSocketBase::OldOnNotify(wxRequestEvent evt)
1052 {
1053   wxSocketEvent event(m_id);
1054
1055   event.SetEventObject(this);
1056   event.m_skevt = evt;
1057   ProcessEvent(event);
1058
1059   if (m_cbk)
1060     m_cbk(*this, evt, m_cdata);
1061 }
1062
1063 // --------------------------------------------------------------
1064 // --------- wxSocketBase functions [Callback, CallbackData] ----
1065 // --------------------------------------------------------------
1066
1067 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSocketBase::wxSockCbk _cbk)
1068 {
1069   wxSockCbk old_cbk = m_cbk;
1070
1071   m_cbk = _cbk;
1072   return old_cbk;
1073 }
1074
1075 char *wxSocketBase::CallbackData(char *cdata_)
1076 {
1077   char *old_cdata = m_cdata;
1078
1079   m_cdata = cdata_;
1080   return old_cdata;
1081 }
1082
1083 void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
1084 {
1085   SetNextHandler(&h_evt);
1086   m_id = id;
1087 }
1088
1089 // --------------------------------------------------------------
1090 // --------- wxSocketBase pushback library ----------------------
1091 // --------------------------------------------------------------
1092
1093 void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
1094 {
1095   char *curr_pos;
1096
1097   m_unread = (char *) realloc(m_unread, m_unrd_size+size);
1098   curr_pos = m_unread + m_unrd_size;
1099
1100   memcpy(curr_pos, buffer, size);
1101   m_unrd_size += size;
1102 }
1103
1104 void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
1105 {
1106   char *curr_pos, *new_buf;
1107
1108   new_buf = (char *) malloc(m_unrd_size+size);
1109   curr_pos = new_buf + size;
1110
1111   memcpy(new_buf, buffer, size);
1112   memcpy(curr_pos, m_unread, m_unrd_size);
1113
1114   free(m_unread);
1115   m_unread = new_buf;
1116   m_unrd_size += size;
1117 }
1118
1119 size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
1120 {
1121   if (!m_unrd_size)
1122     return 0;
1123
1124   if (size > m_unrd_size)
1125     size = m_unrd_size;
1126   memcpy(buffer, m_unread, size);
1127
1128   if (!peek) {
1129     m_unrd_size -= size;
1130     if (!m_unrd_size) {
1131       free(m_unread);
1132       m_unread = NULL;
1133     }
1134   }
1135
1136   return size;
1137 }
1138
1139 // --------------------------------------------------------------
1140 // --------- wxSocketBase "multi-thread" core -------------------
1141 // --------------------------------------------------------------
1142
1143 bool wxSocketBase::DoRequests(wxRequestEvent req_flag)
1144 {
1145   wxNode *node = req_list[req_flag].First();
1146   size_t len;
1147   int ret;
1148
1149   if (!node)
1150     return FALSE;
1151
1152   SockRequest *req = (SockRequest *)node->Data();
1153
1154   delete node;
1155
1156   switch (req->type)
1157   {
1158   case EVT_READ:
1159   case EVT_PEEK:
1160     ret = recv(m_fd, req->buffer, req->size,
1161                (req->type == EVT_PEEK) ? MSG_PEEK : 0);
1162     if (ret < 0)
1163     {
1164       req->error = errno;
1165       req->done = TRUE;
1166       break;
1167     }
1168     len = ret;
1169     if ((len < req->size) && (m_flags & WAITALL))
1170     {
1171       req->size -= len;
1172       req->nbytes += len;
1173       req->buffer += len;
1174       req->auto_wakeup->Start(m_timeout*1000, TRUE);
1175       req_list[req_flag].Insert(req);
1176       break;
1177     }
1178     req->done = TRUE;
1179     req->nbytes += len;
1180 #ifndef __WXGTK__
1181     DestroyCallbacks();
1182 #endif
1183     break;
1184   case EVT_WRITE:
1185     ret = send(m_fd, req->buffer, req->size, 0);
1186     if (ret < 0)
1187     {
1188       req->error = errno;
1189       req->done = TRUE;
1190       break;
1191     }
1192     len = ret;
1193     if ((len < req->size) && (m_flags & WAITALL))
1194     {
1195       req->size -= len;
1196       req->nbytes += len;
1197       req->buffer += len;
1198       req->auto_wakeup->Start(m_timeout*1000, TRUE);
1199       req_list[req_flag].Insert(req);
1200       break;
1201     }
1202     req->done = TRUE;
1203     req->nbytes += len;
1204 #ifndef __WXGTK__
1205     DestroyCallbacks();
1206 #endif
1207     break;
1208   default:
1209     return FALSE;
1210   }
1211   return TRUE;
1212 }
1213
1214 void wxSocketBase::WantSpeedBuffer(char *buffer, size_t nbytes,
1215                                    wxRequestEvent evt)
1216 {
1217   int ret = 0;
1218
1219   switch (evt)
1220   {
1221   case EVT_PEEK:
1222   case EVT_READ:
1223     ret = recv(m_fd, buffer, nbytes,
1224                (evt == EVT_PEEK) ? MSG_PEEK : 0);
1225     break;
1226   case EVT_WRITE:
1227     ret = send(m_fd, buffer, nbytes, 0);
1228     break;
1229   }
1230   if (ret < 0)
1231   {
1232     m_lcount = 0;
1233     m_error = errno;
1234   }
1235   else
1236   {
1237     m_lcount = ret;
1238     m_error = 0;
1239   }
1240 }
1241
1242 void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
1243             wxRequestEvent evt)
1244 {
1245   bool buf_timed_out;
1246
1247   if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
1248     return;
1249
1250   if (m_flags & SPEED)
1251   {
1252     WantSpeedBuffer(buffer, nbytes, evt);
1253     return;
1254   }
1255
1256   SockRequest *buf = new SockRequest;
1257   wxSockWakeUp s_wake(NULL, (int *)&buf_timed_out, (int)TRUE);
1258
1259   m_wantbuf++;
1260   req_list[evt].Append(buf);
1261
1262   SaveState();
1263   SetNotify(REQ_LOST | EventToNotify(evt));
1264   SetupCallbacks();
1265   buf->buffer = buffer;
1266   buf->size = nbytes;
1267   buf->done = FALSE;
1268   buf->type = evt;
1269   buf->nbytes = 0;
1270   buf->auto_wakeup = &s_wake;
1271   buf->error = 0;
1272   buf_timed_out = FALSE;
1273
1274   s_wake.Start(m_timeout*1000, TRUE);
1275   if (m_flags & NOWAIT)
1276   {
1277     DoRequests(evt);
1278   }
1279   else
1280   {
1281     while (!buf->done && !buf_timed_out)
1282       PROCESS_EVENTS();
1283   }
1284   m_wantbuf--;
1285   m_lcount = buf->nbytes;
1286   if (buf_timed_out)
1287     m_error = ETIMEDOUT;
1288   else
1289     m_error = buf->error;
1290
1291   delete buf;
1292   RestoreState();
1293 }
1294
1295 // --------------------------------------------------------------
1296 // wxSocketServer
1297 // --------------------------------------------------------------
1298
1299 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
1300              wxSockFlags flags) :
1301   wxSocketBase(flags, SOCK_SERVER)
1302 {
1303   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1304
1305   if (m_fd == INVALID_SOCKET)
1306     return;
1307
1308   int flag = 1;
1309   setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
1310
1311   struct sockaddr *myaddr;
1312   size_t len;
1313
1314   addr_man.Build(myaddr, len);
1315   if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
1316     return;
1317
1318   if (listen(m_fd, 5) < 0) {
1319     m_fd = INVALID_SOCKET;
1320     return;
1321   }
1322 }
1323
1324 // --------------------------------------------------------------
1325 // wxSocketServer Accept
1326 // --------------------------------------------------------------
1327
1328 bool wxSocketServer::AcceptWith(wxSocketBase& sock)
1329 {
1330   int fd2;
1331
1332   if ((fd2 = accept(m_fd, 0, 0)) < 0)
1333     return FALSE;
1334
1335   struct linger linger;
1336   linger.l_onoff = 0;
1337   linger.l_linger = 1;
1338
1339   setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1340
1341   int flag = 0;
1342   setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1343
1344   if (!(sock.m_flags & SPEED))
1345   {
1346     unsigned long flag2 = 1;
1347     ioctl(fd2, FIONBIO, &flag2);
1348   }
1349
1350   sock.m_type = SOCK_INTERNAL;
1351   sock.m_fd = fd2;
1352   sock.m_connected = TRUE;
1353
1354   return TRUE;
1355 }
1356
1357 wxSocketBase *wxSocketServer::Accept()
1358 {
1359   wxSocketBase* sock = new wxSocketBase();
1360
1361   sock->SetFlags((wxSockFlags)m_flags);
1362
1363   if (!AcceptWith(*sock))
1364     return NULL;
1365
1366   if (m_handler)
1367     m_handler->Register(sock);
1368
1369   return sock;
1370 }
1371
1372 // --------------------------------------------------------------
1373 // wxSocketServer callbacks
1374 // --------------------------------------------------------------
1375
1376 void wxSocketServer::OnRequest(wxRequestEvent evt)
1377 {
1378   if (evt == EVT_ACCEPT)
1379   {
1380     OldOnNotify(EVT_ACCEPT);
1381   }
1382 }
1383
1384 // --------------------------------------------------------------
1385 // wxSocketClient
1386 // --------------------------------------------------------------
1387
1388 // --------- wxSocketClient CONSTRUCTOR -------------------------
1389 // --------------------------------------------------------------
1390 wxSocketClient::wxSocketClient(wxSockFlags _flags) :
1391   wxSocketBase(_flags, SOCK_CLIENT)
1392 {
1393 }
1394
1395 // --------------------------------------------------------------
1396 // --------- wxSocketClient DESTRUCTOR --------------------------
1397 // --------------------------------------------------------------
1398 wxSocketClient::~wxSocketClient()
1399 {
1400 }
1401
1402 // --------------------------------------------------------------
1403 // --------- wxSocketClient Connect functions -------------------
1404 // --------------------------------------------------------------
1405 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
1406 {
1407   struct linger linger;
1408
1409   if (IsConnected())
1410     Close();
1411
1412   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
1413
1414   if (m_fd < 0)
1415     return FALSE;
1416
1417   m_connected = FALSE;
1418
1419   linger.l_onoff = 1;
1420   linger.l_linger = 5;
1421   setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
1422
1423   // Stay in touch with the state of things...
1424
1425   unsigned long flag = 1;
1426   setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
1427
1428   // Disable the nagle algorithm, which delays sends till the
1429   // buffer is full (or a certain time period has passed?)...
1430
1431 #if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
1432   flag = 1;
1433   setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
1434 #endif
1435
1436   struct sockaddr *remote;
1437   size_t len;
1438
1439   addr_man.Build(remote, len);
1440
1441   if (connect(m_fd, remote, len) != 0)
1442     return FALSE;
1443
1444   if (!(m_flags & SPEED))
1445   {
1446     flag = 1;
1447     ioctl(m_fd, FIONBIO, &flag);
1448   }
1449
1450   Notify(TRUE);
1451
1452   m_connected = TRUE;
1453   return TRUE;
1454 }
1455
1456 bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
1457 {
1458   int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
1459
1460   if (ret)
1461     m_connected = TRUE;
1462
1463   return m_connected;
1464 }
1465
1466 void wxSocketClient::OnRequest(wxRequestEvent evt)
1467 {
1468   if (evt == EVT_CONNECT)
1469   {
1470     if (m_connected)
1471     {
1472 #ifndef __WXGTK__
1473       SetNotify(m_neededreq & ~REQ_CONNECT);
1474 #endif
1475       return;
1476     }
1477     m_waitflags = 0x40;
1478     m_connected = TRUE;
1479     OldOnNotify(EVT_CONNECT);
1480 #ifndef __WXGTK__
1481     DestroyCallbacks();
1482 #endif
1483     return;
1484   }
1485   wxSocketBase::OnRequest(evt);
1486 }
1487
1488 /////////////////////////////////////////////////////////////////
1489 // wxSocketHandler ///////////////////////////////////////////////
1490 /////////////////////////////////////////////////////////////////
1491
1492 wxSocketHandler *wxSocketHandler::master = NULL;
1493 #if defined(__WINDOWS__)
1494 static int win_initialized = 0;
1495 #endif
1496
1497 // --------------------------------------------------------------
1498 // --------- wxSocketHandler CONSTRUCTOR ------------------------
1499 // --------------------------------------------------------------
1500 #ifdef __WXMAC__
1501
1502 extern "C" int updatestatus(int s) ;
1503
1504 void wxMacSocketOnRequestProc( void *refcon , short event )
1505 {
1506   if ( refcon )
1507   {
1508     wxSocketBase *sock = (wxSocketBase *) refcon ;
1509
1510     wxSocketBase::wxRequestEvent sk_req;
1511
1512     int canRead ;
1513     int canWrite ;
1514     int exception ;
1515
1516     switch (event) {
1517     case FD_READ:
1518       sk_req = wxSocketBase::EVT_READ;
1519      sock->OnRequest(sk_req);
1520       break;
1521     case FD_WRITE:
1522       sk_req = wxSocketBase::EVT_WRITE;
1523       sock->OnRequest(sk_req);
1524       break;
1525     case FD_CLOSE:
1526       sk_req = wxSocketBase::EVT_LOST;
1527      sock->OnRequest(sk_req);
1528       break;
1529     case FD_ACCEPT:
1530       sk_req = wxSocketBase::EVT_ACCEPT;
1531       sock->OnRequest(sk_req);
1532       break;
1533     case FD_CONNECT:
1534       sk_req = wxSocketBase::EVT_CONNECT;
1535       sock->OnRequest(sk_req);
1536       break;
1537     case FD_READY :
1538       break ;
1539     }
1540     updatestatus ( sock->m_fd ) ;
1541   }
1542 }
1543
1544 void wxMacSocketHandlerProc( void *refcon , short event )
1545 {
1546   wxMacNetEventsReferences[wxMacNetEventsTop] = refcon ;
1547   wxMacNetEventsEvents[wxMacNetEventsTop] = event ;
1548
1549   // clumsy construct in order to never have a incorrect wxMacNetEventsTop (above limits)
1550
1551   if ( wxMacNetEventsTop + 1 == kwxMacNetEventsMax )
1552     wxMacNetEventsTop = 0 ;
1553   else
1554     wxMacNetEventsTop++ ;
1555 }
1556
1557 #endif
1558 #ifdef __WINDOWS__
1559
1560 extern char wxPanelClassName[];
1561
1562 LRESULT APIENTRY _EXPORT wxSocketHandlerWndProc(HWND hWnd, UINT message,
1563    WPARAM wParam, LPARAM lParam)
1564 {
1565   if(message==WM_DESTROY)
1566   {
1567     ::SetWindowLong(hWnd, GWL_WNDPROC, (LONG) DefWindowProc);
1568     return DefWindowProc(hWnd, message, wParam, lParam);
1569   }
1570   wxSocketHandler *h_sock = (wxSocketHandler *)GetWindowLong(hWnd, GWL_USERDATA);
1571   wxNode *node = h_sock->smsg_list->Find(message);
1572   wxSocketBase *sock;
1573   wxSocketBase::wxRequestEvent sk_req;
1574   UINT event = WSAGETSELECTEVENT(lParam);
1575
1576   if (!node)
1577     return DefWindowProc(hWnd, message, wParam, lParam);
1578
1579   sock = (wxSocketBase *)node->Data();
1580
1581   switch (event) {
1582   case FD_READ:
1583     sk_req = wxSocketBase::EVT_READ;
1584     break;
1585   case FD_WRITE:
1586     sk_req = wxSocketBase::EVT_WRITE;
1587     break;
1588   case FD_CLOSE:
1589     sk_req = wxSocketBase::EVT_LOST;
1590     break;
1591   case FD_ACCEPT:
1592     sk_req = wxSocketBase::EVT_ACCEPT;
1593     break;
1594   case FD_CONNECT:
1595     sk_req = wxSocketBase::EVT_CONNECT;
1596     break;
1597   }
1598   sock->OnRequest(sk_req);
1599
1600   return (LRESULT)0;
1601 }
1602
1603 FARPROC wxSocketSubClassProc = NULL;
1604
1605 #endif
1606
1607 wxSocketHandler::wxSocketHandler()
1608 {
1609 #if defined(__WINDOWS__)
1610   if (!win_initialized)
1611   {
1612     WSADATA wsaData;
1613
1614     WSAStartup((1 << 8) | 1, &wsaData);
1615     win_initialized = 1;
1616   }
1617   internal = new wxSockHandlerInternal;
1618   internal->sockWin = ::CreateWindow(wxPanelClassName, NULL, 0,
1619     0, 0, 0, 0, NULL, (HMENU) NULL,
1620     wxhInstance, 0);
1621
1622   // Subclass the window
1623   if (!wxSocketSubClassProc)
1624     wxSocketSubClassProc = MakeProcInstance((FARPROC) wxSocketHandlerWndProc, wxhInstance);
1625   ::SetWindowLong(internal->sockWin, GWL_WNDPROC, (LONG) wxSocketSubClassProc);
1626   ::SetWindowLong(internal->sockWin, GWL_USERDATA, (LONG) this);
1627
1628   internal->firstAvailableMsg = 5000;
1629   smsg_list = new wxList(wxKEY_INTEGER);
1630 #endif
1631
1632   socks = new wxList;
1633
1634 #ifndef __WINDOWS__
1635   signal(SIGPIPE, SIG_IGN);
1636 #endif
1637 }
1638
1639 // --------------------------------------------------------------
1640 // --------- wxSocketHandler DESTRUCTOR -------------------------
1641 // --------------------------------------------------------------
1642 wxSocketHandler::~wxSocketHandler()
1643 {
1644   wxNode *next_node, *node = socks->First();
1645
1646   while (node)
1647   {
1648     wxSocketBase* sock = (wxSocketBase*)node->Data();
1649
1650     delete sock;
1651     next_node = node->Next();
1652     delete node;
1653     node = next_node;
1654   }
1655
1656   delete socks;
1657
1658 #ifdef __WINDOWS__
1659   delete smsg_list;
1660
1661   ::DestroyWindow(internal->sockWin);
1662   WSACleanup();
1663   win_initialized = 0;
1664
1665   delete internal;
1666 #endif
1667 }
1668
1669 // --------------------------------------------------------------
1670 // --------- wxSocketHandler registering functions --------------
1671 // --------------------------------------------------------------
1672
1673 void wxSocketHandler::Register(wxSocketBase* sock)
1674 {
1675   wxNode *node;
1676
1677   for (node = socks->First(); node != NULL; node = node->Next())
1678   {
1679     wxSocketBase* s = (wxSocketBase*)node->Data();
1680
1681     if (s == sock)
1682       return;
1683   }
1684
1685   if (sock)
1686   {
1687     socks->Append(sock);
1688     sock->SetHandler(this);
1689     sock->SetupCallbacks();
1690   }
1691 }
1692
1693 void wxSocketHandler::UnRegister(wxSocketBase* sock)
1694 {
1695   wxNode *node;
1696
1697   for (node = socks->First(); node; node = node->Next())
1698   {
1699     wxSocketBase* s = (wxSocketBase*)node->Data();
1700
1701     if (s == sock)
1702     {
1703       delete node;
1704       sock->DestroyCallbacks();
1705       sock->SetHandler(NULL);
1706       return;
1707     }
1708   }
1709 }
1710
1711 unsigned long wxSocketHandler::Count() const
1712 {
1713   return socks->Number();
1714 }
1715
1716 // --------------------------------------------------------------
1717 // --------- wxSocketHandler "big" wait functions ---------------
1718 // --------------------------------------------------------------
1719 void handler_cbk(wxSocketBase& sock,
1720      wxSocketBase::wxRequestEvent WXUNUSED(flags),
1721      char *cdata)
1722 {
1723   int *a_wait = (int *)cdata;
1724
1725   (*a_wait)++;
1726   sock.Notify(FALSE);
1727 }
1728
1729 int wxSocketHandler::Wait(long seconds, long microseconds)
1730 {
1731   int i;
1732   int on_wait;
1733   wxSockWakeUp s_wake(NULL, &on_wait, -2);
1734   wxNode *node;
1735
1736   for (node = socks->First(), i=0; node; node = node->Next(), i++)
1737   {
1738     wxSocketBase *sock = (wxSocketBase *)node->Data();
1739
1740     sock->SaveState();
1741
1742     sock->SetupCallbacks();
1743
1744     sock->Callback(handler_cbk);
1745     sock->CallbackData((char *)&on_wait);
1746   }
1747   on_wait = 0;
1748   if (seconds != -1)
1749     s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
1750
1751   while (!on_wait)
1752     PROCESS_EVENTS();
1753
1754   for (node = socks->First(), i=0; node; node = node->Next(), i++)
1755   {
1756     wxSocketBase *sock = (wxSocketBase *)node->Data();
1757
1758     sock->RestoreState();
1759   }
1760
1761   if (on_wait == -2)
1762     return 0;
1763
1764   return on_wait;
1765 }
1766
1767 void wxSocketHandler::YieldSock()
1768 {
1769   wxNode *node;
1770
1771   for (node = socks->First(); node; node = node->Next() )
1772   {
1773     wxSocketBase *sock = (wxSocketBase *)node->Data();
1774
1775     sock->SaveState();
1776
1777     sock->SetFlags(wxSocketBase::SPEED);
1778     if (sock->IsData())
1779       sock->DoRequests(wxSocketBase::EVT_READ);
1780     sock->DoRequests(wxSocketBase::EVT_WRITE);
1781
1782     sock->RestoreState();
1783   }
1784 }
1785
1786 // --------------------------------------------------------------
1787 // --------- wxSocketHandler: create and register the socket ----
1788 // --------------------------------------------------------------
1789 wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
1790                 wxSocketBase::wxSockFlags flags)
1791 {
1792   wxSocketServer *serv = new wxSocketServer(addr, flags);
1793
1794   Register(serv);
1795   return serv;
1796 }
1797
1798 wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
1799 {
1800   wxSocketClient *client = new wxSocketClient(flags);
1801
1802   Register(client);
1803   return client;
1804 }
1805
1806 #ifdef __WINDOWS__
1807 // --------------------------------------------------------------
1808 // --------- wxSocketHandler: Windows specific methods ----------
1809 // --------------------------------------------------------------
1810
1811 UINT wxSocketHandler::NewMessage(wxSocketBase *sock)
1812 {
1813   internal->firstAvailableMsg++;
1814   smsg_list->Append(internal->firstAvailableMsg, sock);
1815   return internal->firstAvailableMsg;
1816 }
1817
1818 void wxSocketHandler::DestroyMessage(UINT msg)
1819 {
1820   wxNode *node = smsg_list->Find(msg);
1821   delete node;
1822 }
1823
1824 HWND wxSocketHandler::GetHWND() const
1825 {
1826   return internal->sockWin;
1827 }
1828
1829 #endif
1830
1831 bool wxSocketModule::OnInit()
1832 {
1833   wxSocketHandler::master = new wxSocketHandler();
1834   return TRUE;
1835 }
1836
1837 void wxSocketModule::OnExit()
1838 {
1839   delete wxSocketHandler::master;
1840   wxSocketHandler::master = NULL;
1841 }
1842
1843 #ifdef __WXMAC__
1844 void wxMacProcessSocketEvents() ;
1845 void wxMacProcessEvents()
1846 {
1847   wxMacProcessSocketEvents() ;
1848    (*GUSISpin)(SP_MISC, 0) ;
1849 }
1850
1851 void wxMacProcessSocketEvents()
1852 {
1853   while ( wxMacNetEventsTop != wxMacNetEventsBottom )
1854   {
1855     // consume event at wxMacNetEventsBottom
1856     wxMacSocketOnRequestProc(wxMacNetEventsReferences[wxMacNetEventsBottom] , wxMacNetEventsEvents[wxMacNetEventsBottom]  ) ;
1857     wxMacNetEventsBottom++ ;
1858     if ( wxMacNetEventsBottom == kwxMacNetEventsMax )
1859       wxMacNetEventsBottom = 0 ;
1860   }
1861 }
1862 #endif
1863
1864 #endif
1865   // __WXSTUBS__