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:    April 1999
   8 // Copyright:  (C) 1999 1998, 1997, Guilhem Lavaux
   9 // RCS_ID:     $Id$
  10 // License:    see wxWindows license
  11 ////////////////////////////////////////////////////////////////////////////////
  12 #ifdef __GNUG__
  13 #pragma implementation "socket.h"
  14 #endif
  15
  16 #ifdef __MWERKS__
  17 typedef int socklen_t ;
  18 #endif
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24 #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_SOCKETS
  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
  55 #endif
  56
  57 #if defined(__WINDOWS__)
  58 #include <winsock.h>
  59 #endif // __WINDOWS__
  60
  61 #if defined(__UNIX__)
  62
  63 #ifdef VMS
  64 #include <socket.h>
  65 #else
  66 #include <sys/socket.h>
  67 #endif
  68 #include <sys/ioctl.h>
  69
  70 #include <sys/time.h>
  71 #include <unistd.h>
  72
  73 #ifdef sun
  74 #include <sys/filio.h>
  75 #endif
  76
  77 #endif // __UNIX__
  78
  79 #include <signal.h>
  80 #include <errno.h>
  81
  82 #ifdef __VISUALC__
  83 #include <io.h>
  84 #endif
  85
  86 /////////////////////////////////////////////////////////////////////////////
  87 // wxSocket headers
  88 /////////////////////////////////////////////////////////////////////////////
  89 #include <wx/module.h>
  90 #define WXSOCK_INTERNAL
  91 #include <wx/sckaddr.h>
  92 #include <wx/socket.h>
  93 #include <wx/sckint.h>
  94
  95 // ----------------------
  96 // Some patch ----- BEGIN
  97 // ----------------------
  98 #ifdef __WINDOWS__
  99 #define close closesocket
 100 #define ioctl ioctlsocket
 101 #ifdef errno
 102 #undef errno
 103 #endif
 104 #define errno WSAGetLastError()
 105 #ifdef EWOULDBLOCK
 106 #undef EWOULDBLOCK
 107 #endif
 108 #define EWOULDBLOCK WSAEWOULDBLOCK
 109 #define ETIMEDOUT WSAETIMEDOUT
 110 #undef EINTR
 111 #define EINTR WSAEINTR
 112 #endif
 113
 114 #ifndef __WINDOWS__
 115 #define INVALID_SOCKET -1
 116 #endif
 117
 118 #ifdef __WINDOWS__
 119 // This is an MS TCP/IP routine and is not needed here. Some WinSock
 120 // implementations (such as PC-NFS) will require you to include this
 121 // or a similar routine (see appendix in WinSock doc or help file).
 122
 123 #if defined( NEED_WSAFDIsSet ) || defined( __VISUALC__ )
 124 int PASCAL FAR __WSAFDIsSet(SOCKET fd, fd_set FAR *set)
 125 {
 126   int i = set->fd_count;
 127
 128   while (i--)
 129   {
 130     if (set->fd_array[i] == fd)
 131       return 1;
 132   }
 133
 134   return 0;
 135 }
 136 #endif
 137 #endif
 138
 139 // -------------------
 140 // Some patch ---- END
 141 // -------------------
 142
 143 #ifdef GetClassInfo
 144 #undef GetClassInfo
 145 #endif
 146
 147 // --------------------------------------------------------------
 148 // Module
 149 // --------------------------------------------------------------
 150 class wxSocketModule: public wxModule
 151 {
 152   DECLARE_DYNAMIC_CLASS(wxSocketModule)
 153 public:
 154   wxSocketModule() {}
 155   bool OnInit();
 156   void OnExit();
 157 };
 158
 159 // --------------------------------------------------------------
 160 // ClassInfos
 161 // --------------------------------------------------------------
 162 #if !USE_SHARED_LIBRARY
 163 IMPLEMENT_CLASS(wxSocketBase, wxObject)
 164 IMPLEMENT_CLASS(wxSocketServer, wxSocketBase)
 165 IMPLEMENT_CLASS(wxSocketClient, wxSocketBase)
 166 IMPLEMENT_CLASS(wxSocketHandler, wxObject)
 167 IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent)
 168 IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
 169 #endif
 170
 171 // --------------------------------------------------------------
 172 // --------- wxSocketBase CONSTRUCTOR ---------------------------
 173 // --------------------------------------------------------------
 174 wxSocketBase::wxSocketBase(wxSocketBase::wxSockFlags _flags,
 175          wxSocketBase::wxSockType _type) :
 176   wxEvtHandler(),
 177   m_flags(_flags), m_type(_type), m_connected(FALSE), m_connecting(FALSE),
 178   m_fd(INVALID_SOCKET), m_id(-1),
 179   m_handler(0),
 180   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 181   m_timeout(3600),
 182   m_unread(NULL), m_unrd_size(0),
 183   m_cbk(NULL), m_cdata(NULL),
 184   m_notify_state(FALSE)
 185 {
 186   m_internal = new wxSocketInternal(this);
 187 }
 188
 189 wxSocketBase::wxSocketBase() :
 190   wxEvtHandler(),
 191   m_flags(WAITALL), m_type(SOCK_UNINIT), m_connected(FALSE),
 192   m_connecting(FALSE), m_fd(INVALID_SOCKET),
 193   m_id(-1), m_handler(0),
 194   m_neededreq((wxRequestNotify)(REQ_READ | REQ_LOST)),
 195   m_timeout(3600),
 196   m_unread(NULL), m_unrd_size(0),
 197   m_cbk(NULL), m_cdata(NULL),
 198   m_notify_state(FALSE)
 199 {
 200   m_internal = new wxSocketInternal(this);
 201 }
 202
 203 // --------------------------------------------------------------
 204 // wxSocketBase
 205 // --------------------------------------------------------------
 206
 207 wxSocketBase::~wxSocketBase()
 208 {
 209   // First, close the file descriptor.
 210   Close();
 211
 212   if (m_unread)
 213     free(m_unread);
 214   // Unregister from the handler database.
 215   if (m_handler)
 216     m_handler->UnRegister(this);
 217
 218   // Destroy all saved states.
 219   m_states.DeleteContents(TRUE);
 220
 221   // Destroy the socket manager.
 222   delete m_internal;
 223 }
 224
 225 bool wxSocketBase::Close()
 226 {
 227   if (m_fd != INVALID_SOCKET)
 228   {
 229     if (m_notify_state == TRUE)
 230       Notify(FALSE);
 231
 232     // Shutdown the connection.
 233     shutdown(m_fd, 2);
 234     close(m_fd);
 235     m_fd = INVALID_SOCKET;
 236     m_connected = FALSE;
 237   }
 238
 239   return TRUE;
 240 }
 241
 242 // --------------------------------------------------------------
 243 // wxSocketBase base IO function
 244 // --------------------------------------------------------------
 245
 246 wxSocketBase& wxSocketBase::Read(char* buffer, size_t nbytes)
 247 {
 248   m_lcount = GetPushback(buffer, nbytes, FALSE);
 249   nbytes -= m_lcount;
 250   buffer += m_lcount;
 251
 252   // If we have got the whole needed buffer or if we don't want to
 253   // wait then it returns immediately.
 254   if (!nbytes || (m_lcount && !(m_flags & WAITALL)) ) {
 255     return *this;
 256   }
 257
 258   WantBuffer(buffer, nbytes, EVT_READ);
 259
 260   return *this;
 261 }
 262
 263 wxSocketBase& wxSocketBase::Peek(char* buffer, size_t nbytes)
 264 {
 265   m_lcount = GetPushback(buffer, nbytes, TRUE);
 266   if (nbytes-m_lcount == 0)
 267   {
 268     return *this;
 269   }
 270   buffer += m_lcount;
 271   nbytes -= m_lcount;
 272
 273   WantBuffer(buffer, nbytes, EVT_PEEK);
 274
 275   return *this;
 276 }
 277
 278 wxSocketBase& wxSocketBase::Write(const char *buffer, size_t nbytes)
 279 {
 280   m_lcount = 0;
 281   WantBuffer((char *)buffer, nbytes, EVT_WRITE);
 282   return *this;
 283 }
 284
 285 wxSocketBase& wxSocketBase::Unread(const char *buffer, size_t nbytes)
 286 {
 287   CreatePushbackAfter(buffer, nbytes);
 288   return *this;
 289 }
 290
 291 bool wxSocketBase::IsData() const
 292 {
 293   struct timeval tv;
 294   fd_set sock_set;
 295
 296   if (m_fd < 0)
 297     return FALSE;
 298   if (m_unrd_size > 0)
 299     return TRUE;
 300
 301   m_internal->AcquireFD();
 302
 303   tv.tv_sec = 0;
 304   tv.tv_usec = 0;
 305   FD_ZERO(&sock_set);
 306   FD_SET(m_fd, &sock_set);
 307   select(FD_SETSIZE, &sock_set, NULL, NULL, &tv);
 308
 309   m_internal->ReleaseFD();
 310
 311   return (FD_ISSET(m_fd, &sock_set) != 0);
 312 }
 313
 314 // ---------------------------------------------------------------------
 315 // --------- wxSocketBase Discard(): deletes all byte in the input queue
 316 // ---------------------------------------------------------------------
 317 void wxSocketBase::Discard()
 318 {
 319 #define MAX_BUFSIZE (10*1024)
 320   char *my_data = new char[MAX_BUFSIZE];
 321   size_t recv_size = MAX_BUFSIZE;
 322
 323   SaveState();
 324   SetFlags((wxSockFlags)(NOWAIT | SPEED));
 325
 326   while (recv_size == MAX_BUFSIZE)
 327   {
 328     recv_size = Read(my_data, MAX_BUFSIZE).LastCount();
 329   }
 330
 331   RestoreState();
 332   delete [] my_data;
 333
 334 #undef MAX_BUFSIZE
 335 }
 336
 337 // If what? Who seems to need unsigned int?
 338 // BTW uint isn't even defined on wxMSW for VC++ for some reason. Even if it
 339 // were, getpeername/getsockname don't take unsigned int*, they take int*.
 340 //
 341 // Under glibc 2.0.7, socketbits.h declares socklen_t to be unsigned int
 342 // and it uses *socklen_t as the 3rd parameter. Robert.
 343
 344 // JACS - How can we detect this?
 345 // Meanwhile, if your compiler complains about socklen_t,
 346 // switch lines below.
 347
 348 #if wxHAVE_GLIBC2
 349 #   define wxSOCKET_INT socklen_t
 350 #else
 351 #   define wxSOCKET_INT int
 352 #endif
 353
 354 // --------------------------------------------------------------
 355 // wxSocketBase socket info functions
 356 // --------------------------------------------------------------
 357
 358 bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const
 359 {
 360   struct sockaddr my_addr;
 361   wxSOCKET_INT len_addr = sizeof(my_addr);
 362
 363   if (m_fd < 0)
 364     return FALSE;
 365
 366   m_internal->AcquireFD();
 367
 368   if (getpeername(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
 369     m_internal->ReleaseFD();
 370     return FALSE;
 371   }
 372
 373   m_internal->ReleaseFD();
 374   addr_man.Disassemble(&my_addr, len_addr);
 375   return TRUE;
 376 }
 377
 378 bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const
 379 {
 380   struct sockaddr my_addr;
 381   wxSOCKET_INT len_addr = sizeof(my_addr);
 382
 383   if (m_fd < 0)
 384     return FALSE;
 385
 386   m_internal->AcquireFD();
 387
 388   if (getsockname(m_fd, (struct sockaddr *)&my_addr, &len_addr) < 0) {
 389     m_internal->ReleaseFD();
 390     return FALSE;
 391   }
 392   m_internal->ReleaseFD();
 393
 394   addr_man.Disassemble(&my_addr, len_addr);
 395   return TRUE;
 396 }
 397
 398 // --------------------------------------------------------------
 399 // wxSocketBase wait functions
 400 // --------------------------------------------------------------
 401
 402 void wxSocketBase::SaveState()
 403 {
 404   SocketState *state = new SocketState;
 405
 406   state->notify_state     = m_notify_state;
 407   state->evt_notify_state = m_neededreq;
 408   state->socket_flags     = m_flags;
 409   state->c_callback       = m_cbk;
 410   state->c_callback_data  = m_cdata;
 411
 412   m_states.Append((wxObject *)state);
 413 }
 414
 415 void wxSocketBase::RestoreState()
 416 {
 417   wxNode *node;
 418   SocketState *state;
 419
 420   node = m_states.Last();
 421   if (!node)
 422     return;
 423
 424   state = (SocketState *)node->Data();
 425
 426   SetFlags(state->socket_flags);
 427   m_neededreq = state->evt_notify_state;
 428   m_cbk       = state->c_callback;
 429   m_cdata     = state->c_callback_data;
 430   Notify(state->notify_state);
 431
 432   delete node;
 433   delete state;
 434 }
 435
 436 // --------------------------------------------------------------
 437 // --------- wxSocketBase callback functions --------------------
 438 // --------------------------------------------------------------
 439
 440 wxSocketBase::wxSockCbk wxSocketBase::Callback(wxSockCbk cbk_)
 441 {
 442   wxSockCbk old_cbk = cbk_;
 443
 444   m_cbk = cbk_;
 445   return old_cbk;
 446 }
 447
 448 char *wxSocketBase::CallbackData(char *data)
 449 {
 450   char *old_data = m_cdata;
 451
 452   m_cdata = data;
 453   return old_data;
 454 }
 455
 456 // --------------------------------------------------------------
 457 // --------- wxSocketBase wait functions ------------------------
 458 // --------------------------------------------------------------
 459
 460 bool wxSocketBase::_Wait(long seconds, long milliseconds, int type)
 461 {
 462   SockRequest *req;
 463
 464   if ((!m_connected && !m_connecting) || m_fd < 0)
 465     return FALSE;
 466
 467   req = new SockRequest;
 468
 469   req->type = REQ_WAIT | type;
 470   req->timeout = seconds * 1000 + milliseconds;
 471   req->done = FALSE;
 472   req->buffer = NULL;
 473   req->size = 0;
 474   req->error = 0;
 475   req->wait = TRUE;
 476   m_internal->QueueRequest(req, TRUE);
 477
 478   return (req->io_nbytes != 0);
 479 }
 480
 481 bool wxSocketBase::Wait(long seconds, long milliseconds)
 482 {
 483   return _Wait(seconds, milliseconds, REQ_ACCEPT | REQ_CONNECT |
 484                                       REQ_READ | REQ_WRITE | REQ_LOST);
 485 }
 486
 487 bool wxSocketBase::WaitForRead(long seconds, long milliseconds)
 488 {
 489   return _Wait(seconds, milliseconds, REQ_READ | REQ_LOST);
 490 }
 491
 492 bool wxSocketBase::WaitForWrite(long seconds, long milliseconds)
 493 {
 494   return _Wait(seconds, milliseconds, REQ_WRITE);
 495 }
 496
 497 bool wxSocketBase::WaitForLost(long seconds, long milliseconds)
 498 {
 499   return _Wait(seconds, milliseconds, REQ_LOST);
 500 }
 501
 502 // --------------------------------------------------------------
 503 // --------- wxSocketBase callback management -------------------
 504 // --------------------------------------------------------------
 505
 506 wxSocketBase::wxRequestNotify wxSocketBase::EventToNotify(wxRequestEvent evt)
 507 {
 508   switch (evt)
 509   {
 510   case EVT_READ:
 511     return REQ_READ;
 512   case EVT_PEEK:
 513     return REQ_PEEK;
 514   case EVT_WRITE:
 515     return REQ_WRITE;
 516   case EVT_LOST:
 517     return REQ_LOST;
 518   case EVT_ACCEPT:
 519     return REQ_ACCEPT;
 520   case EVT_CONNECT:
 521     return REQ_CONNECT;
 522   }
 523   return 0;
 524 }
 525
 526 void wxSocketBase::SetFlags(wxSockFlags _flags)
 527 {
 528   m_flags = _flags;
 529   if (_flags & SPEED) {
 530     // SPEED and WAITALL are antagonists.
 531     m_flags = (wxSockFlags)(m_flags & ~WAITALL);
 532   }
 533 }
 534
 535 wxSocketBase::wxSockFlags wxSocketBase::GetFlags() const
 536 {
 537   return m_flags;
 538 }
 539
 540 void wxSocketBase::SetNotify(wxRequestNotify flags)
 541 {
 542   /* Check if server */
 543   if (m_type != SOCK_SERVER)
 544     flags &= ~REQ_ACCEPT;
 545
 546   m_internal->AcquireData();
 547   m_neededreq = flags;
 548   m_internal->ReleaseData();
 549   if (m_neededreq == 0)
 550     m_internal->StopWaiter();
 551   else
 552     Notify(m_notify_state);
 553 }
 554
 555 void wxSocketBase::Notify(bool notify)
 556 {
 557   m_notify_state = notify;
 558   if (m_fd == INVALID_SOCKET)
 559     return;
 560
 561   if (notify)
 562     m_internal->ResumeWaiter();
 563   else
 564     m_internal->StopWaiter();
 565 }
 566
 567 void wxSocketBase::OnRequest(wxRequestEvent req_evt)
 568 {
 569   wxSocketEvent event(m_id);
 570   wxRequestNotify notify = EventToNotify(req_evt);
 571
 572   if ((m_neededreq & notify) == notify) {
 573     event.m_socket = this;
 574     event.m_skevt = req_evt;
 575     ProcessEvent(event);
 576     // TODOTODO
 577     // OldOnNotify(req_evt);
 578
 579     // We disable the event reporting.
 580     m_neededreq &= ~notify;
 581   }
 582 }
 583
 584 wxSocketEvent::wxSocketEvent(int id)
 585   : wxEvent(id)
 586 {
 587   wxEventType type = (wxEventType)wxEVT_SOCKET;
 588
 589   SetEventType(type);
 590 }
 591
 592 void wxSocketEvent::CopyObject(wxObject& obj_d) const
 593 {
 594   wxSocketEvent *event = (wxSocketEvent *)&obj_d;
 595
 596   wxEvent::CopyObject(obj_d);
 597
 598   event->m_skevt = m_skevt;
 599   event->m_socket = m_socket;
 600 }
 601
 602 void wxSocketBase::OldOnNotify(wxRequestEvent evt)
 603 {
 604 }
 605
 606 // --------------------------------------------------------------
 607 // --------- wxSocketBase functions [Callback, CallbackData] ----
 608 // --------------------------------------------------------------
 609
 610 void wxSocketBase::SetEventHandler(wxEvtHandler& h_evt, int id)
 611 {
 612   SetNextHandler(&h_evt);
 613   m_id = id;
 614 }
 615
 616 // --------------------------------------------------------------
 617 // --------- wxSocketBase pushback library ----------------------
 618 // --------------------------------------------------------------
 619
 620 void wxSocketBase::CreatePushbackAfter(const char *buffer, size_t size)
 621 {
 622   char *curr_pos;
 623
 624   if (m_unread != NULL)
 625     m_unread = (char *) realloc(m_unread, m_unrd_size+size);
 626   else
 627     m_unread = (char *) malloc(size);
 628   curr_pos = m_unread + m_unrd_size;
 629
 630   memcpy(curr_pos, buffer, size);
 631   m_unrd_size += size;
 632 }
 633
 634 void wxSocketBase::CreatePushbackBefore(const char *buffer, size_t size)
 635 {
 636   char *curr_pos, *new_buf;
 637
 638   new_buf = (char *) malloc(m_unrd_size+size);
 639   curr_pos = new_buf + size;
 640
 641   memcpy(new_buf, buffer, size);
 642   if (m_unrd_size != 0) {
 643     memcpy(curr_pos, m_unread, m_unrd_size);
 644     free(m_unread);
 645   }
 646   m_unread = new_buf;
 647   m_unrd_size += size;
 648 }
 649
 650 size_t wxSocketBase::GetPushback(char *buffer, size_t size, bool peek)
 651 {
 652   if (!m_unrd_size)
 653     return 0;
 654
 655   if (size > m_unrd_size)
 656     size = m_unrd_size;
 657   memcpy(buffer, m_unread, size);
 658
 659   if (!peek) {
 660     m_unrd_size -= size;
 661     if (m_unrd_size == 0) {
 662       free(m_unread);
 663       m_unread = NULL;
 664     }
 665   }
 666
 667   return size;
 668 }
 669
 670 // --------------------------------------------------------------
 671 // --------- wxSocketBase buffer core requester -----------------
 672 // --------------------------------------------------------------
 673
 674 void wxSocketBase::WantBuffer(char *buffer, size_t nbytes,
 675             wxRequestEvent evt)
 676 {
 677   bool buf_timed_out;
 678
 679   if (m_fd == INVALID_SOCKET || !m_handler || !m_connected)
 680     return;
 681
 682   SockRequest *buf = new SockRequest;
 683
 684   SaveState();
 685   m_internal->StopWaiter();
 686   buf->buffer = buffer;
 687   buf->size = nbytes;
 688   buf->done = FALSE;
 689   buf->type = EventToNotify(evt);
 690   buf->io_nbytes = 0;
 691   buf->error = 0;
 692   buf->wait = TRUE;
 693   buf->timeout = 1000;
 694   buf_timed_out = FALSE;
 695
 696   if ((m_flags & SPEED) != 0)
 697     m_internal->QueueRequest(buf, FALSE);
 698   else
 699     if ((m_flags & NOWAIT) != 0)
 700       m_internal->QueueRequest(buf, TRUE);
 701     else
 702       m_internal->QueueRequest(buf, TRUE);
 703   m_lcount += buf->io_nbytes;
 704   if (buf_timed_out)
 705     m_error = ETIMEDOUT;
 706   else
 707     m_error = buf->error;
 708
 709   delete buf;
 710   RestoreState();
 711 }
 712
 713 // --------------------------------------------------------------
 714 // wxSocketServer
 715 // --------------------------------------------------------------
 716
 717 wxSocketServer::wxSocketServer(wxSockAddress& addr_man,
 718              wxSockFlags flags) :
 719   wxSocketBase(flags, SOCK_SERVER)
 720 {
 721   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
 722
 723   if (m_fd == INVALID_SOCKET)
 724     return;
 725
 726   int flag = 1;
 727   setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char*)&flag, sizeof(int));
 728
 729   struct sockaddr *myaddr;
 730   size_t len;
 731
 732   addr_man.Build(myaddr, len);
 733   if (bind(m_fd, myaddr, addr_man.SockAddrLen()) < 0)
 734     return;
 735
 736   if (listen(m_fd, 5) < 0) {
 737     m_fd = INVALID_SOCKET;
 738     return;
 739   }
 740
 741   m_internal->SetFD(m_fd);
 742
 743   Notify(TRUE);
 744 }
 745
 746 // --------------------------------------------------------------
 747 // wxSocketServer Accept
 748 // --------------------------------------------------------------
 749
 750 bool wxSocketServer::AcceptWith(wxSocketBase& sock)
 751 {
 752   int fd2;
 753
 754   m_internal->AcquireFD();
 755   if ((fd2 = accept(m_fd, 0, 0)) < 0) {
 756     m_internal->ReleaseFD();
 757     return FALSE;
 758   }
 759   m_internal->ReleaseFD();
 760
 761   struct linger linger;
 762   linger.l_onoff = 0;
 763   linger.l_linger = 1;
 764
 765   setsockopt(fd2, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
 766
 767   int flag = 0;
 768   setsockopt(fd2, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
 769
 770   sock.m_type = SOCK_INTERNAL;
 771   sock.m_fd = fd2;
 772   sock.m_connected = TRUE;
 773
 774   sock.m_internal->SetFD(fd2);
 775
 776   sock.m_internal->ResumeWaiter();
 777
 778   return TRUE;
 779 }
 780
 781 wxSocketBase *wxSocketServer::Accept()
 782 {
 783   wxSocketBase* sock = new wxSocketBase();
 784
 785   sock->SetFlags((wxSockFlags)m_flags);
 786
 787   if (!AcceptWith(*sock))
 788     return NULL;
 789
 790   if (m_handler)
 791     m_handler->Register(sock);
 792
 793   return sock;
 794 }
 795
 796 // --------------------------------------------------------------
 797 // wxSocketClient
 798 // --------------------------------------------------------------
 799
 800 // --------- wxSocketClient CONSTRUCTOR -------------------------
 801 // --------------------------------------------------------------
 802 wxSocketClient::wxSocketClient(wxSockFlags _flags) :
 803   wxSocketBase(_flags, SOCK_CLIENT)
 804 {
 805 }
 806
 807 // --------------------------------------------------------------
 808 // --------- wxSocketClient DESTRUCTOR --------------------------
 809 // --------------------------------------------------------------
 810 wxSocketClient::~wxSocketClient()
 811 {
 812 }
 813
 814 // --------------------------------------------------------------
 815 // --------- wxSocketClient Connect functions -------------------
 816 // --------------------------------------------------------------
 817 bool wxSocketClient::Connect(wxSockAddress& addr_man, bool WXUNUSED(wait) )
 818 {
 819   struct linger linger;
 820
 821   if (IsConnected())
 822     Close();
 823
 824   // Initializes all socket stuff ...
 825   // --------------------------------
 826   m_fd = socket(addr_man.GetFamily(), SOCK_STREAM, 0);
 827
 828   if (m_fd < 0)
 829     return FALSE;
 830
 831   m_connected = FALSE;
 832
 833   linger.l_onoff = 1;
 834   linger.l_linger = 5;
 835   setsockopt(m_fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
 836
 837   // Stay in touch with the state of things...
 838
 839   unsigned long flag = 1;
 840   setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE, (char*)&flag, sizeof(int));
 841
 842   // Disable the nagle algorithm, which delays sends till the
 843   // buffer is full (or a certain time period has passed?)...
 844
 845 #if defined(__WINDOWS__) || (defined(IPPROTO_TCP) && defined(TCP_NODELAY))
 846   flag = 1;
 847   setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, (char*)&flag, sizeof(int));
 848 #endif
 849
 850   struct sockaddr *remote;
 851   size_t len;
 852
 853   addr_man.Build(remote, len);
 854
 855   if (connect(m_fd, remote, len) != 0)
 856     return FALSE;
 857
 858   m_internal->SetFD(m_fd);
 859
 860   // Enables bg events.
 861   // ------------------
 862   Notify(TRUE);
 863
 864   m_connected = TRUE;
 865   return TRUE;
 866 }
 867
 868 bool wxSocketClient::WaitOnConnect(long seconds, long microseconds)
 869 {
 870   int ret = _Wait(seconds, microseconds, REQ_CONNECT | REQ_LOST);
 871
 872   if (ret)
 873     m_connected = TRUE;
 874
 875   return m_connected;
 876 }
 877
 878 void wxSocketClient::OnRequest(wxRequestEvent evt)
 879 {
 880   if (evt == EVT_CONNECT)
 881   {
 882     if (m_connected)
 883     {
 884       m_neededreq &= ~REQ_CONNECT;
 885       return;
 886     }
 887     m_connected = TRUE;
 888     return;
 889   }
 890   wxSocketBase::OnRequest(evt);
 891 }
 892
 893 /////////////////////////////////////////////////////////////////
 894 // wxSocketHandler ///////////////////////////////////////////////
 895 /////////////////////////////////////////////////////////////////
 896
 897 wxSocketHandler *wxSocketHandler::master = NULL;
 898 #if defined(__WINDOWS__)
 899 static int win_initialized = 0;
 900 #endif
 901
 902 // --------------------------------------------------------------
 903 // --------- wxSocketHandler CONSTRUCTOR ------------------------
 904 // --------------------------------------------------------------
 905 wxSocketHandler::wxSocketHandler()
 906 {
 907 #if defined(__WINDOWS__)
 908   if (!win_initialized)
 909   {
 910     WSADATA wsaData;
 911
 912     WSAStartup((1 << 8) | 1, &wsaData);
 913     win_initialized = 1;
 914   }
 915 #endif
 916
 917   socks = new wxList;
 918
 919 #ifndef __WINDOWS__
 920   signal(SIGPIPE, SIG_IGN);
 921 #endif
 922 }
 923
 924 // --------------------------------------------------------------
 925 // --------- wxSocketHandler DESTRUCTOR -------------------------
 926 // --------------------------------------------------------------
 927 wxSocketHandler::~wxSocketHandler()
 928 {
 929   wxNode *next_node, *node = socks->First();
 930
 931   while (node)
 932   {
 933     wxSocketBase* sock = (wxSocketBase*)node->Data();
 934
 935     delete sock;
 936     next_node = node->Next();
 937     delete node;
 938     node = next_node;
 939   }
 940
 941   delete socks;
 942
 943 #ifdef __WINDOWS__
 944   WSACleanup();
 945   win_initialized = 0;
 946 #endif
 947 }
 948
 949 // --------------------------------------------------------------
 950 // --------- wxSocketHandler registering functions --------------
 951 // --------------------------------------------------------------
 952
 953 void wxSocketHandler::Register(wxSocketBase* sock)
 954 {
 955   wxNode *node;
 956
 957   for (node = socks->First(); node != NULL; node = node->Next())
 958   {
 959     wxSocketBase* s = (wxSocketBase*)node->Data();
 960
 961     if (s == sock)
 962       return;
 963   }
 964
 965   if (sock)
 966   {
 967     socks->Append(sock);
 968     sock->SetHandler(this);
 969   }
 970 }
 971
 972 void wxSocketHandler::UnRegister(wxSocketBase* sock)
 973 {
 974   wxNode *node;
 975
 976   for (node = socks->First(); node; node = node->Next())
 977   {
 978     wxSocketBase* s = (wxSocketBase*)node->Data();
 979
 980     if (s == sock)
 981     {
 982       delete node;
 983       sock->SetHandler(NULL);
 984       return;
 985     }
 986   }
 987 }
 988
 989 unsigned long wxSocketHandler::Count() const
 990 {
 991   return socks->Number();
 992 }
 993
 994 // --------------------------------------------------------------
 995 // --------- wxSocketHandler "big" wait functions ---------------
 996 // --------------------------------------------------------------
 997
 998 int wxSocketHandler::Wait(long seconds, long microseconds)
 999 {
1000   // TODO Needs the completely asynchronous notifier.
1001
1002   /*
1003   int i;
1004   int on_wait;
1005   wxNode *node;
1006   for (node = socks->First(), i=0; node; node = node->Next(), i++)
1007   {
1008     wxSocketBase *sock = (wxSocketBase *)node->Data();
1009
1010     sock->SaveState();
1011
1012     sock->SetupCallbacks();
1013
1014     sock->Callback(handler_cbk);
1015     sock->CallbackData((char *)&on_wait);
1016   }
1017   on_wait = 0;
1018   if (seconds != -1)
1019     s_wake.Start((seconds*1000) + (microseconds/1000), TRUE);
1020
1021   while (!on_wait)
1022     PROCESS_EVENTS();
1023
1024   for (node = socks->First(), i=0; node; node = node->Next(), i++)
1025   {
1026     wxSocketBase *sock = (wxSocketBase *)node->Data();
1027
1028     sock->RestoreState();
1029   }
1030
1031   if (on_wait == -2)
1032     return 0;
1033
1034   return on_wait;
1035   */
1036   return 0;
1037 }
1038
1039 void wxSocketHandler::YieldSock()
1040 {
1041   wxNode *node;
1042
1043   // Nothing to do anymore here except waiting for the queue emptying.
1044   for (node = socks->First(); node; node=node->Next()) {
1045     wxSocketBase *sock = (wxSocketBase *)node->Data();
1046
1047     sock->m_internal->WaitForEnd(NULL);
1048   }
1049 }
1050
1051 // --------------------------------------------------------------
1052 // --------- wxSocketHandler: create and register the socket ----
1053 // --------------------------------------------------------------
1054 wxSocketServer *wxSocketHandler::CreateServer(wxSockAddress& addr,
1055                 wxSocketBase::wxSockFlags flags)
1056 {
1057   wxSocketServer *serv = new wxSocketServer(addr, flags);
1058
1059   Register(serv);
1060   return serv;
1061 }
1062
1063 wxSocketClient *wxSocketHandler::CreateClient(wxSocketBase::wxSockFlags flags)
1064 {
1065   wxSocketClient *client = new wxSocketClient(flags);
1066
1067   Register(client);
1068   return client;
1069 }
1070
1071 bool wxSocketModule::OnInit()
1072 {
1073   wxSocketHandler::master = new wxSocketHandler();
1074   return TRUE;
1075 }
1076
1077 void wxSocketModule::OnExit()
1078 {
1079   delete wxSocketHandler::master;
1080   wxSocketHandler::master = NULL;
1081 }
1082
1083 #endif
1084   // __WXSTUBS__
1085
1086 #endif
1087   // wxUSE_SOCKETS