| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/mac/carbon/cfsocket.cpp |
| 3 | // Purpose: Socket handler classes |
| 4 | // Authors: Guilhem Lavaux, Guillermo Rodriguez Garcia |
| 5 | // Created: April 1997 |
| 6 | // Copyright: (C) 1999-1997, Guilhem Lavaux |
| 7 | // (C) 2000-1999, Guillermo Rodriguez Garcia |
| 8 | // RCS_ID: $Id$ |
| 9 | // License: see wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #include "wx/wxprec.h" |
| 13 | |
| 14 | #ifdef __BORLANDC__ |
| 15 | #pragma hdrstop |
| 16 | #endif |
| 17 | |
| 18 | #if wxUSE_SOCKETS |
| 19 | |
| 20 | #include "wx/socket.h" |
| 21 | |
| 22 | #ifndef WX_PRECOMP |
| 23 | #include "wx/object.h" |
| 24 | #include "wx/string.h" |
| 25 | #include "wx/intl.h" |
| 26 | #include "wx/log.h" |
| 27 | #include "wx/event.h" |
| 28 | #include "wx/app.h" |
| 29 | #include "wx/utils.h" |
| 30 | #include "wx/timer.h" |
| 31 | #include "wx/module.h" |
| 32 | #endif |
| 33 | |
| 34 | #include "wx/apptrait.h" |
| 35 | |
| 36 | #include "wx/sckaddr.h" |
| 37 | #include "wx/mac/carbon/private.h" |
| 38 | |
| 39 | #include <sys/socket.h> |
| 40 | #include <netinet/in.h> |
| 41 | #include <arpa/inet.h> |
| 42 | #include <netdb.h> |
| 43 | |
| 44 | #define HAVE_INET_ATON |
| 45 | |
| 46 | // DLL options compatibility check: |
| 47 | #include "wx/build.h" |
| 48 | |
| 49 | WX_CHECK_BUILD_OPTIONS("wxNet") |
| 50 | |
| 51 | |
| 52 | // discard buffer |
| 53 | #define MAX_DISCARD_SIZE (10 * 1024) |
| 54 | |
| 55 | #ifndef INVALID_SOCKET |
| 56 | #define INVALID_SOCKET -1 |
| 57 | #endif |
| 58 | |
| 59 | // what to do within waits: we have 2 cases: from the main thread itself we |
| 60 | // have to call wxYield() to let the events (including the GUI events and the |
| 61 | // low-level (not wxWidgets) events from GSocket) be processed. From another |
| 62 | // thread it is enough to just call wxThread::Yield() which will give away the |
| 63 | // rest of our time slice: the explanation is that the events will be processed |
| 64 | // by the main thread anyhow, without calling wxYield(), but we don't want to |
| 65 | // eat the CPU time uselessly while sitting in the loop waiting for the data |
| 66 | #if wxUSE_THREADS |
| 67 | #define PROCESS_EVENTS() \ |
| 68 | { \ |
| 69 | if ( wxThread::IsMain() ) \ |
| 70 | wxYield(); \ |
| 71 | else \ |
| 72 | wxThread::Yield(); \ |
| 73 | } |
| 74 | #else // !wxUSE_THREADS |
| 75 | #define PROCESS_EVENTS() wxYield() |
| 76 | #endif // wxUSE_THREADS/!wxUSE_THREADS |
| 77 | |
| 78 | #define wxTRACE_Socket _T("wxSocket") |
| 79 | |
| 80 | |
| 81 | IMPLEMENT_CLASS(wxSocketBase, wxObject) |
| 82 | IMPLEMENT_CLASS(wxSocketServer, wxSocketBase) |
| 83 | IMPLEMENT_CLASS(wxSocketClient, wxSocketBase) |
| 84 | IMPLEMENT_CLASS(wxDatagramSocket, wxSocketBase) |
| 85 | IMPLEMENT_DYNAMIC_CLASS(wxSocketEvent, wxEvent) |
| 86 | |
| 87 | // -------------------------------------------------------------------------- |
| 88 | // private classes |
| 89 | // -------------------------------------------------------------------------- |
| 90 | |
| 91 | class wxSocketState : public wxObject |
| 92 | { |
| 93 | public: |
| 94 | wxSocketFlags m_flags; |
| 95 | wxSocketEventFlags m_eventmask; |
| 96 | bool m_notify; |
| 97 | void *m_clientData; |
| 98 | |
| 99 | public: |
| 100 | wxSocketState() : wxObject() {} |
| 101 | |
| 102 | DECLARE_NO_COPY_CLASS(wxSocketState) |
| 103 | }; |
| 104 | |
| 105 | struct _GSocket |
| 106 | { |
| 107 | CFSocketNativeHandle m_fd; |
| 108 | GAddress *m_local; |
| 109 | GAddress *m_peer; |
| 110 | GSocketError m_error; |
| 111 | |
| 112 | int m_non_blocking; |
| 113 | int m_server; |
| 114 | int m_stream; |
| 115 | int m_oriented; |
| 116 | int m_establishing; |
| 117 | unsigned long m_timeout; |
| 118 | |
| 119 | // Callbacks |
| 120 | GSocketEventFlags m_detected; |
| 121 | GSocketCallback m_cbacks[GSOCK_MAX_EVENT]; |
| 122 | char *m_data[GSOCK_MAX_EVENT]; |
| 123 | |
| 124 | CFSocketRef m_cfSocket; |
| 125 | CFRunLoopSourceRef m_runLoopSource; |
| 126 | CFReadStreamRef m_readStream ; |
| 127 | CFWriteStreamRef m_writeStream ; |
| 128 | }; |
| 129 | |
| 130 | struct _GAddress |
| 131 | { |
| 132 | struct sockaddr *m_addr; |
| 133 | size_t m_len; |
| 134 | |
| 135 | GAddressType m_family; |
| 136 | int m_realfamily; |
| 137 | |
| 138 | GSocketError m_error; |
| 139 | int somethingElse ; |
| 140 | }; |
| 141 | |
| 142 | void wxMacCFSocketCallback(CFSocketRef s, CFSocketCallBackType callbackType, |
| 143 | CFDataRef address, const void* data, void* info) ; |
| 144 | void _GSocket_Enable(GSocket *socket, GSocketEvent event) ; |
| 145 | void _GSocket_Disable(GSocket *socket, GSocketEvent event) ; |
| 146 | |
| 147 | // ========================================================================== |
| 148 | // wxSocketBase |
| 149 | // ========================================================================== |
| 150 | |
| 151 | // -------------------------------------------------------------------------- |
| 152 | // Initialization and shutdown |
| 153 | // -------------------------------------------------------------------------- |
| 154 | |
| 155 | // FIXME-MT: all this is MT-unsafe, of course, we should protect all accesses |
| 156 | // to m_countInit with a crit section |
| 157 | size_t wxSocketBase::m_countInit = 0; |
| 158 | |
| 159 | bool wxSocketBase::IsInitialized() |
| 160 | { |
| 161 | return m_countInit > 0; |
| 162 | } |
| 163 | |
| 164 | bool wxSocketBase::Initialize() |
| 165 | { |
| 166 | if ( !m_countInit++ ) |
| 167 | { |
| 168 | #if 0 |
| 169 | wxAppTraits *traits = wxAppConsole::GetInstance() ? |
| 170 | wxAppConsole::GetInstance()->GetTraits() : NULL; |
| 171 | GSocketGUIFunctionsTable *functions = |
| 172 | traits ? traits->GetSocketGUIFunctionsTable() : NULL; |
| 173 | GSocket_SetGUIFunctions(functions); |
| 174 | |
| 175 | if ( !GSocket_Init() ) |
| 176 | { |
| 177 | m_countInit--; |
| 178 | |
| 179 | return false; |
| 180 | } |
| 181 | #endif |
| 182 | } |
| 183 | |
| 184 | return true; |
| 185 | } |
| 186 | |
| 187 | void wxSocketBase::Shutdown() |
| 188 | { |
| 189 | // we should be initialized |
| 190 | wxASSERT_MSG( m_countInit, wxT("extra call to Shutdown()") ); |
| 191 | if ( !--m_countInit ) |
| 192 | { |
| 193 | #if 0 |
| 194 | GSocket_Cleanup(); |
| 195 | #endif |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | // -------------------------------------------------------------------------- |
| 200 | // Ctor and dtor |
| 201 | // -------------------------------------------------------------------------- |
| 202 | |
| 203 | void wxSocketBase::Init() |
| 204 | { |
| 205 | m_socket = NULL; |
| 206 | m_type = wxSOCKET_UNINIT; |
| 207 | |
| 208 | // state |
| 209 | m_flags = 0; |
| 210 | m_connected = |
| 211 | m_establishing = |
| 212 | m_reading = |
| 213 | m_writing = |
| 214 | m_error = false; |
| 215 | m_lcount = 0; |
| 216 | m_timeout = 600; |
| 217 | m_beingDeleted = false; |
| 218 | |
| 219 | // pushback buffer |
| 220 | m_unread = NULL; |
| 221 | m_unrd_size = 0; |
| 222 | m_unrd_cur = 0; |
| 223 | |
| 224 | // events |
| 225 | m_id = -1; |
| 226 | m_handler = NULL; |
| 227 | m_clientData = NULL; |
| 228 | m_notify = false; |
| 229 | m_eventmask = 0; |
| 230 | |
| 231 | if ( !IsInitialized() ) |
| 232 | { |
| 233 | // this Initialize() will be undone by wxSocketModule::OnExit(), all the |
| 234 | // other calls to it should be matched by a call to Shutdown() |
| 235 | Initialize(); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | wxSocketBase::wxSocketBase() |
| 240 | { |
| 241 | Init(); |
| 242 | } |
| 243 | |
| 244 | wxSocketBase::wxSocketBase( wxSocketFlags flags, wxSocketType type) |
| 245 | { |
| 246 | Init(); |
| 247 | |
| 248 | m_flags = flags; |
| 249 | m_type = type; |
| 250 | } |
| 251 | |
| 252 | wxSocketBase::~wxSocketBase() |
| 253 | { |
| 254 | // Just in case the app called Destroy() *and* then deleted |
| 255 | // the socket immediately: don't leave dangling pointers. |
| 256 | wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL; |
| 257 | if ( traits ) |
| 258 | traits->RemoveFromPendingDelete(this); |
| 259 | |
| 260 | // Shutdown and close the socket |
| 261 | if (!m_beingDeleted) |
| 262 | Close(); |
| 263 | |
| 264 | // Destroy the GSocket object |
| 265 | if (m_socket) |
| 266 | { |
| 267 | GSocket_destroy(m_socket); |
| 268 | } |
| 269 | |
| 270 | // Free the pushback buffer |
| 271 | if (m_unread) |
| 272 | free(m_unread); |
| 273 | } |
| 274 | |
| 275 | bool wxSocketBase::Destroy() |
| 276 | { |
| 277 | // Delayed destruction: the socket will be deleted during the next |
| 278 | // idle loop iteration. This ensures that all pending events have |
| 279 | // been processed. |
| 280 | m_beingDeleted = true; |
| 281 | |
| 282 | // Shutdown and close the socket |
| 283 | Close(); |
| 284 | |
| 285 | // Supress events from now on |
| 286 | Notify(false); |
| 287 | |
| 288 | // schedule this object for deletion |
| 289 | wxAppTraits *traits = wxTheApp ? wxTheApp->GetTraits() : NULL; |
| 290 | if ( traits ) |
| 291 | { |
| 292 | // let the traits object decide what to do with us |
| 293 | traits->ScheduleForDestroy(this); |
| 294 | } |
| 295 | else // no app or no traits |
| 296 | { |
| 297 | // in wxBase we might have no app object at all, don't leak memory |
| 298 | delete this; |
| 299 | } |
| 300 | |
| 301 | return true; |
| 302 | } |
| 303 | |
| 304 | // -------------------------------------------------------------------------- |
| 305 | // Basic IO calls |
| 306 | // -------------------------------------------------------------------------- |
| 307 | |
| 308 | // The following IO operations update m_error and m_lcount: |
| 309 | // {Read, Write, ReadMsg, WriteMsg, Peek, Unread, Discard} |
| 310 | // |
| 311 | // TODO: Should Connect, Accept and AcceptWith update m_error? |
| 312 | |
| 313 | bool wxSocketBase::Close() |
| 314 | { |
| 315 | // Interrupt pending waits |
| 316 | InterruptWait(); |
| 317 | |
| 318 | if (m_socket) |
| 319 | GSocket_Shutdown(m_socket); |
| 320 | |
| 321 | m_connected = false; |
| 322 | m_establishing = false; |
| 323 | |
| 324 | return true; |
| 325 | } |
| 326 | |
| 327 | wxSocketBase& wxSocketBase::Read(void* buffer, wxUint32 nbytes) |
| 328 | { |
| 329 | // Mask read events |
| 330 | m_reading = true; |
| 331 | |
| 332 | m_lcount = _Read(buffer, nbytes); |
| 333 | |
| 334 | // If in wxSOCKET_WAITALL mode, all bytes should have been read. |
| 335 | if (m_flags & wxSOCKET_WAITALL) |
| 336 | m_error = (m_lcount != nbytes); |
| 337 | else |
| 338 | m_error = (m_lcount == 0); |
| 339 | |
| 340 | // Allow read events from now on |
| 341 | m_reading = false; |
| 342 | |
| 343 | return *this; |
| 344 | } |
| 345 | |
| 346 | wxUint32 wxSocketBase::_Read(void* buffer, wxUint32 nbytes) |
| 347 | { |
| 348 | int total = 0; |
| 349 | |
| 350 | // Try the pushback buffer first |
| 351 | total = GetPushback(buffer, nbytes, false); |
| 352 | nbytes -= total; |
| 353 | buffer = (char *)buffer + total; |
| 354 | |
| 355 | // Return now in one of the following cases: |
| 356 | // - the socket is invalid, |
| 357 | // - we got all the data, |
| 358 | // - we got *some* data and we are not using wxSOCKET_WAITALL. |
| 359 | if ( !m_socket || |
| 360 | !nbytes || |
| 361 | ((total != 0) && !(m_flags & wxSOCKET_WAITALL)) ) |
| 362 | return total; |
| 363 | |
| 364 | // Possible combinations (they are checked in this order) |
| 365 | // wxSOCKET_NOWAIT |
| 366 | // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK) |
| 367 | // wxSOCKET_BLOCK |
| 368 | // wxSOCKET_NONE |
| 369 | // |
| 370 | |
| 371 | int ret; |
| 372 | if (m_flags & wxSOCKET_NOWAIT) |
| 373 | { |
| 374 | GSocket_SetNonBlocking(m_socket, 1); |
| 375 | ret = GSocket_Read(m_socket, (char *)buffer, nbytes); |
| 376 | GSocket_SetNonBlocking(m_socket, 0); |
| 377 | |
| 378 | if (ret > 0) |
| 379 | total += ret; |
| 380 | } |
| 381 | else |
| 382 | { |
| 383 | bool more = true; |
| 384 | |
| 385 | while (more) |
| 386 | { |
| 387 | if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForRead() ) |
| 388 | break; |
| 389 | |
| 390 | ret = GSocket_Read(m_socket, (char *)buffer, nbytes); |
| 391 | |
| 392 | if (ret > 0) |
| 393 | { |
| 394 | total += ret; |
| 395 | nbytes -= ret; |
| 396 | buffer = (char *)buffer + ret; |
| 397 | } |
| 398 | |
| 399 | // If we got here and wxSOCKET_WAITALL is not set, we can leave |
| 400 | // now. Otherwise, wait until we recv all the data or until there |
| 401 | // is an error. |
| 402 | // |
| 403 | more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL)); |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | return total; |
| 408 | } |
| 409 | |
| 410 | wxSocketBase& wxSocketBase::ReadMsg(void* buffer, wxUint32 nbytes) |
| 411 | { |
| 412 | wxUint32 len, len2, sig, total; |
| 413 | bool error; |
| 414 | int old_flags; |
| 415 | struct |
| 416 | { |
| 417 | unsigned char sig[4]; |
| 418 | unsigned char len[4]; |
| 419 | } |
| 420 | msg; |
| 421 | |
| 422 | // Mask read events |
| 423 | m_reading = true; |
| 424 | |
| 425 | total = 0; |
| 426 | error = true; |
| 427 | old_flags = m_flags; |
| 428 | SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL); |
| 429 | |
| 430 | if (_Read(&msg, sizeof(msg)) != sizeof(msg)) |
| 431 | goto exit; |
| 432 | |
| 433 | sig = (wxUint32)msg.sig[0]; |
| 434 | sig |= (wxUint32)(msg.sig[1] << 8); |
| 435 | sig |= (wxUint32)(msg.sig[2] << 16); |
| 436 | sig |= (wxUint32)(msg.sig[3] << 24); |
| 437 | |
| 438 | if (sig != 0xfeeddead) |
| 439 | { |
| 440 | wxLogWarning( wxT("wxSocket: invalid signature in ReadMsg.") ); |
| 441 | goto exit; |
| 442 | } |
| 443 | |
| 444 | len = (wxUint32)msg.len[0]; |
| 445 | len |= (wxUint32)(msg.len[1] << 8); |
| 446 | len |= (wxUint32)(msg.len[2] << 16); |
| 447 | len |= (wxUint32)(msg.len[3] << 24); |
| 448 | |
| 449 | if (len > nbytes) |
| 450 | { |
| 451 | len2 = len - nbytes; |
| 452 | len = nbytes; |
| 453 | } |
| 454 | else |
| 455 | len2 = 0; |
| 456 | |
| 457 | // Don't attemp to read if the msg was zero bytes long. |
| 458 | if (len) |
| 459 | { |
| 460 | total = _Read(buffer, len); |
| 461 | |
| 462 | if (total != len) |
| 463 | goto exit; |
| 464 | } |
| 465 | if (len2) |
| 466 | { |
| 467 | char *discard_buffer = new char[MAX_DISCARD_SIZE]; |
| 468 | long discard_len; |
| 469 | |
| 470 | // NOTE: discarded bytes don't add to m_lcount. |
| 471 | do |
| 472 | { |
| 473 | discard_len = ((len2 > MAX_DISCARD_SIZE)? MAX_DISCARD_SIZE : len2); |
| 474 | discard_len = _Read(discard_buffer, (wxUint32)discard_len); |
| 475 | len2 -= (wxUint32)discard_len; |
| 476 | } |
| 477 | while ((discard_len > 0) && len2); |
| 478 | |
| 479 | delete [] discard_buffer; |
| 480 | |
| 481 | if (len2 != 0) |
| 482 | goto exit; |
| 483 | } |
| 484 | if (_Read(&msg, sizeof(msg)) != sizeof(msg)) |
| 485 | goto exit; |
| 486 | |
| 487 | sig = (wxUint32)msg.sig[0]; |
| 488 | sig |= (wxUint32)(msg.sig[1] << 8); |
| 489 | sig |= (wxUint32)(msg.sig[2] << 16); |
| 490 | sig |= (wxUint32)(msg.sig[3] << 24); |
| 491 | |
| 492 | if (sig != 0xdeadfeed) |
| 493 | { |
| 494 | wxLogWarning( wxT("wxSocket: invalid signature in ReadMsg.") ); |
| 495 | goto exit; |
| 496 | } |
| 497 | |
| 498 | // everything was OK |
| 499 | error = false; |
| 500 | |
| 501 | exit: |
| 502 | m_error = error; |
| 503 | m_lcount = total; |
| 504 | m_reading = false; |
| 505 | SetFlags(old_flags); |
| 506 | |
| 507 | return *this; |
| 508 | } |
| 509 | |
| 510 | wxSocketBase& wxSocketBase::Peek(void* buffer, wxUint32 nbytes) |
| 511 | { |
| 512 | // Mask read events |
| 513 | m_reading = true; |
| 514 | |
| 515 | m_lcount = _Read(buffer, nbytes); |
| 516 | Pushback(buffer, m_lcount); |
| 517 | |
| 518 | // If in wxSOCKET_WAITALL mode, all bytes should have been read. |
| 519 | if (m_flags & wxSOCKET_WAITALL) |
| 520 | m_error = (m_lcount != nbytes); |
| 521 | else |
| 522 | m_error = (m_lcount == 0); |
| 523 | |
| 524 | // Allow read events again |
| 525 | m_reading = false; |
| 526 | |
| 527 | return *this; |
| 528 | } |
| 529 | |
| 530 | wxSocketBase& wxSocketBase::Write(const void *buffer, wxUint32 nbytes) |
| 531 | { |
| 532 | // Mask write events |
| 533 | m_writing = true; |
| 534 | |
| 535 | m_lcount = _Write(buffer, nbytes); |
| 536 | |
| 537 | // If in wxSOCKET_WAITALL mode, all bytes should have been written. |
| 538 | if (m_flags & wxSOCKET_WAITALL) |
| 539 | m_error = (m_lcount != nbytes); |
| 540 | else |
| 541 | m_error = (m_lcount == 0); |
| 542 | |
| 543 | // Allow write events again |
| 544 | m_writing = false; |
| 545 | |
| 546 | return *this; |
| 547 | } |
| 548 | |
| 549 | wxUint32 wxSocketBase::_Write(const void *buffer, wxUint32 nbytes) |
| 550 | { |
| 551 | wxUint32 total = 0; |
| 552 | |
| 553 | // If the socket is invalid or parameters are ill, return immediately |
| 554 | if (!m_socket || !buffer || !nbytes) |
| 555 | return 0; |
| 556 | |
| 557 | // Possible combinations (they are checked in this order) |
| 558 | // wxSOCKET_NOWAIT |
| 559 | // wxSOCKET_WAITALL (with or without wxSOCKET_BLOCK) |
| 560 | // wxSOCKET_BLOCK |
| 561 | // wxSOCKET_NONE |
| 562 | // |
| 563 | int ret; |
| 564 | if (m_flags & wxSOCKET_NOWAIT) |
| 565 | { |
| 566 | GSocket_SetNonBlocking(m_socket, 1); |
| 567 | ret = GSocket_Write(m_socket, (const char *)buffer, nbytes); |
| 568 | GSocket_SetNonBlocking(m_socket, 0); |
| 569 | |
| 570 | if (ret > 0) |
| 571 | total = ret; |
| 572 | } |
| 573 | else |
| 574 | { |
| 575 | bool more = true; |
| 576 | |
| 577 | while (more) |
| 578 | { |
| 579 | if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() ) |
| 580 | break; |
| 581 | |
| 582 | ret = GSocket_Write(m_socket, (const char *)buffer, nbytes); |
| 583 | |
| 584 | if (ret > 0) |
| 585 | { |
| 586 | total += ret; |
| 587 | nbytes -= ret; |
| 588 | buffer = (const char *)buffer + ret; |
| 589 | } |
| 590 | |
| 591 | // If we got here and wxSOCKET_WAITALL is not set, we can leave |
| 592 | // now. Otherwise, wait until we send all the data or until there |
| 593 | // is an error. |
| 594 | // |
| 595 | more = (ret > 0 && nbytes > 0 && (m_flags & wxSOCKET_WAITALL)); |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | return total; |
| 600 | } |
| 601 | |
| 602 | wxSocketBase& wxSocketBase::WriteMsg(const void *buffer, wxUint32 nbytes) |
| 603 | { |
| 604 | wxUint32 total; |
| 605 | bool error; |
| 606 | struct |
| 607 | { |
| 608 | unsigned char sig[4]; |
| 609 | unsigned char len[4]; |
| 610 | } |
| 611 | msg; |
| 612 | |
| 613 | // Mask write events |
| 614 | m_writing = true; |
| 615 | |
| 616 | error = true; |
| 617 | total = 0; |
| 618 | SetFlags((m_flags & wxSOCKET_BLOCK) | wxSOCKET_WAITALL); |
| 619 | |
| 620 | msg.sig[0] = (unsigned char) 0xad; |
| 621 | msg.sig[1] = (unsigned char) 0xde; |
| 622 | msg.sig[2] = (unsigned char) 0xed; |
| 623 | msg.sig[3] = (unsigned char) 0xfe; |
| 624 | |
| 625 | msg.len[0] = (unsigned char) (nbytes & 0xff); |
| 626 | msg.len[1] = (unsigned char) ((nbytes >> 8) & 0xff); |
| 627 | msg.len[2] = (unsigned char) ((nbytes >> 16) & 0xff); |
| 628 | msg.len[3] = (unsigned char) ((nbytes >> 24) & 0xff); |
| 629 | |
| 630 | if (_Write(&msg, sizeof(msg)) < sizeof(msg)) |
| 631 | goto exit; |
| 632 | |
| 633 | total = _Write(buffer, nbytes); |
| 634 | |
| 635 | if (total < nbytes) |
| 636 | goto exit; |
| 637 | |
| 638 | msg.sig[0] = (unsigned char) 0xed; |
| 639 | msg.sig[1] = (unsigned char) 0xfe; |
| 640 | msg.sig[2] = (unsigned char) 0xad; |
| 641 | msg.sig[3] = (unsigned char) 0xde; |
| 642 | msg.len[0] = msg.len[1] = msg.len[2] = msg.len[3] = (char) 0; |
| 643 | |
| 644 | if ((_Write(&msg, sizeof(msg))) < sizeof(msg)) |
| 645 | goto exit; |
| 646 | |
| 647 | // everything was OK |
| 648 | error = false; |
| 649 | |
| 650 | exit: |
| 651 | m_error = error; |
| 652 | m_lcount = total; |
| 653 | m_writing = false; |
| 654 | |
| 655 | return *this; |
| 656 | } |
| 657 | |
| 658 | wxSocketBase& wxSocketBase::Unread(const void *buffer, wxUint32 nbytes) |
| 659 | { |
| 660 | if (nbytes != 0) |
| 661 | Pushback(buffer, nbytes); |
| 662 | |
| 663 | m_error = false; |
| 664 | m_lcount = nbytes; |
| 665 | |
| 666 | return *this; |
| 667 | } |
| 668 | |
| 669 | wxSocketBase& wxSocketBase::Discard() |
| 670 | { |
| 671 | char *buffer = new char[MAX_DISCARD_SIZE]; |
| 672 | wxUint32 ret; |
| 673 | wxUint32 total = 0; |
| 674 | |
| 675 | // Mask read events |
| 676 | m_reading = true; |
| 677 | |
| 678 | SetFlags(wxSOCKET_NOWAIT); |
| 679 | |
| 680 | do |
| 681 | { |
| 682 | ret = _Read(buffer, MAX_DISCARD_SIZE); |
| 683 | total += ret; |
| 684 | } |
| 685 | while (ret == MAX_DISCARD_SIZE); |
| 686 | |
| 687 | delete[] buffer; |
| 688 | m_lcount = total; |
| 689 | m_error = false; |
| 690 | |
| 691 | // Allow read events again |
| 692 | m_reading = false; |
| 693 | |
| 694 | return *this; |
| 695 | } |
| 696 | |
| 697 | // -------------------------------------------------------------------------- |
| 698 | // Wait functions |
| 699 | // -------------------------------------------------------------------------- |
| 700 | |
| 701 | // All Wait functions poll the socket using GSocket_Select() to |
| 702 | // check for the specified combination of conditions, until one |
| 703 | // of these conditions become true, an error occurs, or the |
| 704 | // timeout elapses. The polling loop calls PROCESS_EVENTS(), so |
| 705 | // this won't block the GUI. |
| 706 | |
| 707 | bool wxSocketBase::_Wait(long seconds, |
| 708 | long milliseconds, |
| 709 | wxSocketEventFlags flags) |
| 710 | { |
| 711 | GSocketEventFlags result; |
| 712 | long timeout; |
| 713 | |
| 714 | // Set this to true to interrupt ongoing waits |
| 715 | m_interrupt = false; |
| 716 | |
| 717 | // Check for valid socket |
| 718 | if (!m_socket) |
| 719 | return false; |
| 720 | |
| 721 | // Check for valid timeout value. |
| 722 | if (seconds != -1) |
| 723 | timeout = seconds * 1000 + milliseconds; |
| 724 | else |
| 725 | timeout = m_timeout * 1000; |
| 726 | |
| 727 | #if !defined(wxUSE_GUI) || !wxUSE_GUI |
| 728 | GSocket_SetTimeout(m_socket, timeout); |
| 729 | #endif |
| 730 | |
| 731 | // Wait in an active polling loop. |
| 732 | // |
| 733 | // NOTE: We duplicate some of the code in OnRequest, but this doesn't |
| 734 | // hurt. It has to be here because the (GSocket) event might arrive |
| 735 | // a bit delayed, and it has to be in OnRequest as well because we |
| 736 | // don't know whether the Wait functions are being used. |
| 737 | // |
| 738 | // Do this at least once (important if timeout == 0, when |
| 739 | // we are just polling). Also, if just polling, do not yield. |
| 740 | |
| 741 | wxStopWatch chrono; |
| 742 | bool done = false; |
| 743 | |
| 744 | while (!done) |
| 745 | { |
| 746 | result = GSocket_Select(m_socket, flags | GSOCK_LOST_FLAG); |
| 747 | |
| 748 | // Incoming connection (server) or connection established (client) |
| 749 | if (result & GSOCK_CONNECTION_FLAG) |
| 750 | { |
| 751 | m_connected = true; |
| 752 | m_establishing = false; |
| 753 | |
| 754 | return true; |
| 755 | } |
| 756 | |
| 757 | // Data available or output buffer ready |
| 758 | if ((result & GSOCK_INPUT_FLAG) || (result & GSOCK_OUTPUT_FLAG)) |
| 759 | { |
| 760 | return true; |
| 761 | } |
| 762 | |
| 763 | // Connection lost |
| 764 | if (result & GSOCK_LOST_FLAG) |
| 765 | { |
| 766 | m_connected = false; |
| 767 | m_establishing = false; |
| 768 | |
| 769 | return (flags & GSOCK_LOST_FLAG) != 0; |
| 770 | } |
| 771 | |
| 772 | // Wait more? |
| 773 | if ((!timeout) || (chrono.Time() > timeout) || (m_interrupt)) |
| 774 | done = true; |
| 775 | else |
| 776 | PROCESS_EVENTS(); |
| 777 | } |
| 778 | |
| 779 | return false; |
| 780 | } |
| 781 | |
| 782 | bool wxSocketBase::Wait(long seconds, long milliseconds) |
| 783 | { |
| 784 | return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG | |
| 785 | GSOCK_OUTPUT_FLAG | |
| 786 | GSOCK_CONNECTION_FLAG | |
| 787 | GSOCK_LOST_FLAG); |
| 788 | } |
| 789 | |
| 790 | bool wxSocketBase::WaitForRead(long seconds, long milliseconds) |
| 791 | { |
| 792 | // Check pushback buffer before entering _Wait |
| 793 | if (m_unread) |
| 794 | return true; |
| 795 | |
| 796 | // Note that GSOCK_INPUT_LOST has to be explicitly passed to |
| 797 | // _Wait becuase of the semantics of WaitForRead: a return |
| 798 | // value of true means that a GSocket_Read call will return |
| 799 | // immediately, not that there is actually data to read. |
| 800 | |
| 801 | return _Wait(seconds, milliseconds, GSOCK_INPUT_FLAG | GSOCK_LOST_FLAG); |
| 802 | } |
| 803 | |
| 804 | bool wxSocketBase::WaitForWrite(long seconds, long milliseconds) |
| 805 | { |
| 806 | return _Wait(seconds, milliseconds, GSOCK_OUTPUT_FLAG); |
| 807 | } |
| 808 | |
| 809 | bool wxSocketBase::WaitForLost(long seconds, long milliseconds) |
| 810 | { |
| 811 | return _Wait(seconds, milliseconds, GSOCK_LOST_FLAG); |
| 812 | } |
| 813 | |
| 814 | // -------------------------------------------------------------------------- |
| 815 | // Miscellaneous |
| 816 | // -------------------------------------------------------------------------- |
| 817 | |
| 818 | // |
| 819 | // Get local or peer address |
| 820 | // |
| 821 | |
| 822 | bool wxSocketBase::GetPeer(wxSockAddress& addr_man) const |
| 823 | { |
| 824 | GAddress *peer; |
| 825 | |
| 826 | if (!m_socket) |
| 827 | return false; |
| 828 | |
| 829 | peer = GSocket_GetPeer(m_socket); |
| 830 | |
| 831 | // copying a null address would just trigger an assert anyway |
| 832 | |
| 833 | if (!peer) |
| 834 | return false; |
| 835 | |
| 836 | addr_man.SetAddress(peer); |
| 837 | GAddress_destroy(peer); |
| 838 | |
| 839 | return true; |
| 840 | } |
| 841 | |
| 842 | bool wxSocketBase::GetLocal(wxSockAddress& addr_man) const |
| 843 | { |
| 844 | #if 0 |
| 845 | GAddress *local; |
| 846 | |
| 847 | if (!m_socket) |
| 848 | return false; |
| 849 | |
| 850 | local = GSocket_GetLocal(m_socket); |
| 851 | addr_man.SetAddress(local); |
| 852 | GAddress_destroy(local); |
| 853 | #endif |
| 854 | |
| 855 | return true; |
| 856 | } |
| 857 | |
| 858 | // |
| 859 | // Save and restore socket state |
| 860 | // |
| 861 | |
| 862 | void wxSocketBase::SaveState() |
| 863 | { |
| 864 | wxSocketState *state; |
| 865 | |
| 866 | state = new wxSocketState(); |
| 867 | |
| 868 | state->m_flags = m_flags; |
| 869 | state->m_notify = m_notify; |
| 870 | state->m_eventmask = m_eventmask; |
| 871 | state->m_clientData = m_clientData; |
| 872 | |
| 873 | m_states.Append(state); |
| 874 | } |
| 875 | |
| 876 | void wxSocketBase::RestoreState() |
| 877 | { |
| 878 | wxList::compatibility_iterator node; |
| 879 | wxSocketState *state; |
| 880 | |
| 881 | node = m_states.GetLast(); |
| 882 | if (!node) |
| 883 | return; |
| 884 | |
| 885 | state = (wxSocketState *)node->GetData(); |
| 886 | |
| 887 | m_flags = state->m_flags; |
| 888 | m_notify = state->m_notify; |
| 889 | m_eventmask = state->m_eventmask; |
| 890 | m_clientData = state->m_clientData; |
| 891 | |
| 892 | m_states.Erase(node); |
| 893 | delete state; |
| 894 | } |
| 895 | |
| 896 | // |
| 897 | // Timeout and flags |
| 898 | // |
| 899 | |
| 900 | void wxSocketBase::SetTimeout(long seconds) |
| 901 | { |
| 902 | m_timeout = seconds; |
| 903 | |
| 904 | #if 0 |
| 905 | if (m_socket) |
| 906 | GSocket_SetTimeout(m_socket, m_timeout * 1000); |
| 907 | #endif |
| 908 | } |
| 909 | |
| 910 | void wxSocketBase::SetFlags(wxSocketFlags flags) |
| 911 | { |
| 912 | m_flags = flags; |
| 913 | } |
| 914 | |
| 915 | |
| 916 | // -------------------------------------------------------------------------- |
| 917 | // Event handling |
| 918 | // -------------------------------------------------------------------------- |
| 919 | |
| 920 | // A note on how events are processed, which is probably the most |
| 921 | // difficult thing to get working right while keeping the same API |
| 922 | // and functionality for all platforms. |
| 923 | // |
| 924 | // When GSocket detects an event, it calls wx_socket_callback, which in |
| 925 | // turn just calls wxSocketBase::OnRequest in the corresponding wxSocket |
| 926 | // object. OnRequest does some housekeeping, and if the event is to be |
| 927 | // propagated to the user, it creates a new wxSocketEvent object and |
| 928 | // posts it. The event is not processed immediately, but delayed with |
| 929 | // AddPendingEvent instead. This is necessary in order to decouple the |
| 930 | // event processing from wx_socket_callback; otherwise, subsequent IO |
| 931 | // calls made from the user event handler would fail, as gtk callbacks |
| 932 | // are not reentrant. |
| 933 | // |
| 934 | // Note that, unlike events, user callbacks (now deprecated) are _not_ |
| 935 | // decoupled from wx_socket_callback and thus they suffer from a variety |
| 936 | // of problems. Avoid them where possible and use events instead. |
| 937 | |
| 938 | extern "C" |
| 939 | void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket), |
| 940 | GSocketEvent notification, |
| 941 | char *cdata) |
| 942 | { |
| 943 | wxSocketBase *sckobj = (wxSocketBase *)cdata; |
| 944 | |
| 945 | sckobj->OnRequest((wxSocketNotify) notification); |
| 946 | } |
| 947 | |
| 948 | void wxSocketBase::OnRequest(wxSocketNotify notification) |
| 949 | { |
| 950 | // NOTE: We duplicate some of the code in _Wait, but this doesn't |
| 951 | // hurt. It has to be here because the (GSocket) event might arrive |
| 952 | // a bit delayed, and it has to be in _Wait as well because we don't |
| 953 | // know whether the Wait functions are being used. |
| 954 | |
| 955 | switch (notification) |
| 956 | { |
| 957 | case wxSOCKET_CONNECTION: |
| 958 | m_establishing = false; |
| 959 | m_connected = true; |
| 960 | break; |
| 961 | |
| 962 | // If we are in the middle of a R/W operation, do not |
| 963 | // propagate events to users. Also, filter 'late' events |
| 964 | // which are no longer valid. |
| 965 | |
| 966 | case wxSOCKET_INPUT: |
| 967 | if (m_reading || !GSocket_Select(m_socket, GSOCK_INPUT_FLAG)) |
| 968 | return; |
| 969 | break; |
| 970 | |
| 971 | case wxSOCKET_OUTPUT: |
| 972 | if (m_writing || !GSocket_Select(m_socket, GSOCK_OUTPUT_FLAG)) |
| 973 | return; |
| 974 | break; |
| 975 | |
| 976 | case wxSOCKET_LOST: |
| 977 | m_connected = false; |
| 978 | m_establishing = false; |
| 979 | break; |
| 980 | |
| 981 | default: |
| 982 | break; |
| 983 | } |
| 984 | |
| 985 | // Schedule the event |
| 986 | |
| 987 | wxSocketEventFlags flag = 0; |
| 988 | wxUnusedVar(flag); |
| 989 | switch (notification) |
| 990 | { |
| 991 | case GSOCK_INPUT: |
| 992 | flag = GSOCK_INPUT_FLAG; |
| 993 | break; |
| 994 | |
| 995 | case GSOCK_OUTPUT: |
| 996 | flag = GSOCK_OUTPUT_FLAG; |
| 997 | break; |
| 998 | |
| 999 | case GSOCK_CONNECTION: |
| 1000 | flag = GSOCK_CONNECTION_FLAG; |
| 1001 | break; |
| 1002 | |
| 1003 | case GSOCK_LOST: |
| 1004 | flag = GSOCK_LOST_FLAG; |
| 1005 | break; |
| 1006 | |
| 1007 | default: |
| 1008 | wxLogWarning( wxT("wxSocket: unknown event!") ); |
| 1009 | return; |
| 1010 | } |
| 1011 | |
| 1012 | if (((m_eventmask & flag) == flag) && m_notify) |
| 1013 | { |
| 1014 | if (m_handler) |
| 1015 | { |
| 1016 | wxSocketEvent event(m_id); |
| 1017 | event.m_event = notification; |
| 1018 | event.m_clientData = m_clientData; |
| 1019 | event.SetEventObject(this); |
| 1020 | |
| 1021 | m_handler->AddPendingEvent(event); |
| 1022 | } |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | void wxSocketBase::Notify(bool notify) |
| 1027 | { |
| 1028 | m_notify = notify; |
| 1029 | } |
| 1030 | |
| 1031 | void wxSocketBase::SetNotify(wxSocketEventFlags flags) |
| 1032 | { |
| 1033 | m_eventmask = flags; |
| 1034 | } |
| 1035 | |
| 1036 | void wxSocketBase::SetEventHandler(wxEvtHandler& handler, int id) |
| 1037 | { |
| 1038 | m_handler = &handler; |
| 1039 | m_id = id; |
| 1040 | } |
| 1041 | |
| 1042 | // -------------------------------------------------------------------------- |
| 1043 | // Pushback buffer |
| 1044 | // -------------------------------------------------------------------------- |
| 1045 | |
| 1046 | void wxSocketBase::Pushback(const void *buffer, wxUint32 size) |
| 1047 | { |
| 1048 | if (!size) |
| 1049 | return; |
| 1050 | |
| 1051 | if (m_unread == NULL) |
| 1052 | m_unread = malloc(size); |
| 1053 | else |
| 1054 | { |
| 1055 | void *tmp; |
| 1056 | |
| 1057 | tmp = malloc(m_unrd_size + size); |
| 1058 | memcpy((char *)tmp + size, m_unread, m_unrd_size); |
| 1059 | free(m_unread); |
| 1060 | |
| 1061 | m_unread = tmp; |
| 1062 | } |
| 1063 | |
| 1064 | m_unrd_size += size; |
| 1065 | |
| 1066 | memcpy(m_unread, buffer, size); |
| 1067 | } |
| 1068 | |
| 1069 | wxUint32 wxSocketBase::GetPushback(void *buffer, wxUint32 size, bool peek) |
| 1070 | { |
| 1071 | if (!m_unrd_size) |
| 1072 | return 0; |
| 1073 | |
| 1074 | if (size > (m_unrd_size-m_unrd_cur)) |
| 1075 | size = m_unrd_size-m_unrd_cur; |
| 1076 | |
| 1077 | memcpy(buffer, (char *)m_unread + m_unrd_cur, size); |
| 1078 | |
| 1079 | if (!peek) |
| 1080 | { |
| 1081 | m_unrd_cur += size; |
| 1082 | if (m_unrd_size == m_unrd_cur) |
| 1083 | { |
| 1084 | free(m_unread); |
| 1085 | m_unread = NULL; |
| 1086 | m_unrd_size = 0; |
| 1087 | m_unrd_cur = 0; |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | return size; |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | // ========================================================================== |
| 1096 | // wxSocketServer |
| 1097 | // ========================================================================== |
| 1098 | |
| 1099 | // -------------------------------------------------------------------------- |
| 1100 | // Ctor |
| 1101 | // -------------------------------------------------------------------------- |
| 1102 | |
| 1103 | wxSocketServer::wxSocketServer(wxSockAddress& addr_man, |
| 1104 | wxSocketFlags flags) |
| 1105 | : wxSocketBase(flags, wxSOCKET_SERVER) |
| 1106 | { |
| 1107 | wxLogTrace( wxTRACE_Socket, wxT("Opening wxSocketServer") ); |
| 1108 | |
| 1109 | m_socket = GSocket_new(); |
| 1110 | |
| 1111 | if (!m_socket) |
| 1112 | { |
| 1113 | wxLogTrace( wxTRACE_Socket, wxT("*** GSocket_new failed") ); |
| 1114 | return; |
| 1115 | } |
| 1116 | |
| 1117 | // Setup the socket as server |
| 1118 | |
| 1119 | #if 0 |
| 1120 | GSocket_SetLocal(m_socket, addr_man.GetAddress()); |
| 1121 | if (GSocket_SetServer(m_socket) != GSOCK_NOERROR) |
| 1122 | { |
| 1123 | GSocket_destroy(m_socket); |
| 1124 | m_socket = NULL; |
| 1125 | |
| 1126 | wxLogTrace( wxTRACE_Socket, wxT("*** GSocket_SetServer failed") ); |
| 1127 | return; |
| 1128 | } |
| 1129 | |
| 1130 | GSocket_SetTimeout(m_socket, m_timeout * 1000); |
| 1131 | GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG | |
| 1132 | GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG, |
| 1133 | wx_socket_callback, (char *)this); |
| 1134 | #endif |
| 1135 | } |
| 1136 | |
| 1137 | // -------------------------------------------------------------------------- |
| 1138 | // Accept |
| 1139 | // -------------------------------------------------------------------------- |
| 1140 | |
| 1141 | bool wxSocketServer::AcceptWith(wxSocketBase& sock, bool wait) |
| 1142 | { |
| 1143 | GSocket *child_socket; |
| 1144 | |
| 1145 | if (!m_socket) |
| 1146 | return false; |
| 1147 | |
| 1148 | // If wait == false, then the call should be nonblocking. |
| 1149 | // When we are finished, we put the socket to blocking mode |
| 1150 | // again. |
| 1151 | |
| 1152 | #if 0 |
| 1153 | if (!wait) |
| 1154 | GSocket_SetNonBlocking(m_socket, 1); |
| 1155 | |
| 1156 | child_socket = GSocket_WaitConnection(m_socket); |
| 1157 | |
| 1158 | if (!wait) |
| 1159 | GSocket_SetNonBlocking(m_socket, 0); |
| 1160 | |
| 1161 | if (!child_socket) |
| 1162 | return false; |
| 1163 | |
| 1164 | sock.m_type = wxSOCKET_BASE; |
| 1165 | sock.m_socket = child_socket; |
| 1166 | sock.m_connected = true; |
| 1167 | |
| 1168 | GSocket_SetTimeout(sock.m_socket, sock.m_timeout * 1000); |
| 1169 | GSocket_SetCallback(sock.m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG | |
| 1170 | GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG, |
| 1171 | wx_socket_callback, (char *)&sock); |
| 1172 | #endif |
| 1173 | |
| 1174 | return true; |
| 1175 | } |
| 1176 | |
| 1177 | wxSocketBase *wxSocketServer::Accept(bool wait) |
| 1178 | { |
| 1179 | wxSocketBase* sock = new wxSocketBase(); |
| 1180 | |
| 1181 | sock->SetFlags(m_flags); |
| 1182 | |
| 1183 | if (!AcceptWith(*sock, wait)) |
| 1184 | { |
| 1185 | sock->Destroy(); |
| 1186 | sock = NULL; |
| 1187 | } |
| 1188 | |
| 1189 | return sock; |
| 1190 | } |
| 1191 | |
| 1192 | bool wxSocketServer::WaitForAccept(long seconds, long milliseconds) |
| 1193 | { |
| 1194 | return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG); |
| 1195 | } |
| 1196 | |
| 1197 | // ========================================================================== |
| 1198 | // wxSocketClient |
| 1199 | // ========================================================================== |
| 1200 | |
| 1201 | // -------------------------------------------------------------------------- |
| 1202 | // Ctor and dtor |
| 1203 | // -------------------------------------------------------------------------- |
| 1204 | |
| 1205 | wxSocketClient::wxSocketClient(wxSocketFlags flags) |
| 1206 | : wxSocketBase(flags, wxSOCKET_CLIENT) |
| 1207 | { |
| 1208 | } |
| 1209 | |
| 1210 | wxSocketClient::~wxSocketClient() |
| 1211 | { |
| 1212 | } |
| 1213 | |
| 1214 | // -------------------------------------------------------------------------- |
| 1215 | // Connect |
| 1216 | // -------------------------------------------------------------------------- |
| 1217 | |
| 1218 | bool wxSocketClient::Connect(wxSockAddress& addr_man, bool wait) |
| 1219 | { |
| 1220 | GSocketError err; |
| 1221 | |
| 1222 | if (m_socket) |
| 1223 | { |
| 1224 | // Shutdown and destroy the socket |
| 1225 | Close(); |
| 1226 | GSocket_destroy(m_socket); |
| 1227 | } |
| 1228 | |
| 1229 | m_socket = GSocket_new(); |
| 1230 | m_connected = false; |
| 1231 | m_establishing = false; |
| 1232 | |
| 1233 | if (!m_socket) |
| 1234 | return false; |
| 1235 | |
| 1236 | GSocket_SetTimeout(m_socket, m_timeout * 1000); |
| 1237 | GSocket_SetCallback(m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG | |
| 1238 | GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG, |
| 1239 | wx_socket_callback, (char *)this); |
| 1240 | |
| 1241 | // If wait == false, then the call should be nonblocking. |
| 1242 | // When we are finished, we put the socket to blocking mode |
| 1243 | // again. |
| 1244 | |
| 1245 | if (!wait) |
| 1246 | GSocket_SetNonBlocking(m_socket, 1); |
| 1247 | |
| 1248 | GSocket_SetPeer(m_socket, addr_man.GetAddress()); |
| 1249 | err = GSocket_Connect(m_socket, GSOCK_STREAMED); |
| 1250 | |
| 1251 | if (!wait) |
| 1252 | GSocket_SetNonBlocking(m_socket, 0); |
| 1253 | |
| 1254 | if (err != GSOCK_NOERROR) |
| 1255 | { |
| 1256 | if (err == GSOCK_WOULDBLOCK) |
| 1257 | m_establishing = true; |
| 1258 | |
| 1259 | return false; |
| 1260 | } |
| 1261 | |
| 1262 | m_connected = true; |
| 1263 | return true; |
| 1264 | } |
| 1265 | |
| 1266 | bool wxSocketClient::WaitOnConnect(long seconds, long milliseconds) |
| 1267 | { |
| 1268 | if (m_connected) // Already connected |
| 1269 | return true; |
| 1270 | |
| 1271 | if (!m_establishing || !m_socket) // No connection in progress |
| 1272 | return false; |
| 1273 | |
| 1274 | return _Wait(seconds, milliseconds, GSOCK_CONNECTION_FLAG | GSOCK_LOST_FLAG); |
| 1275 | } |
| 1276 | |
| 1277 | // ========================================================================== |
| 1278 | // wxDatagramSocket |
| 1279 | // ========================================================================== |
| 1280 | |
| 1281 | /* NOTE: experimental stuff - might change */ |
| 1282 | |
| 1283 | wxDatagramSocket::wxDatagramSocket( wxSockAddress& addr, |
| 1284 | wxSocketFlags flags ) |
| 1285 | : wxSocketBase( flags, wxSOCKET_DATAGRAM ) |
| 1286 | { |
| 1287 | #if 0 |
| 1288 | // Create the socket |
| 1289 | m_socket = GSocket_new(); |
| 1290 | |
| 1291 | if (!m_socket) |
| 1292 | return; |
| 1293 | |
| 1294 | // Setup the socket as non connection oriented |
| 1295 | GSocket_SetLocal(m_socket, addr.GetAddress()); |
| 1296 | if( GSocket_SetNonOriented(m_socket) != GSOCK_NOERROR ) |
| 1297 | { |
| 1298 | GSocket_destroy(m_socket); |
| 1299 | m_socket = NULL; |
| 1300 | return; |
| 1301 | } |
| 1302 | |
| 1303 | // Initialize all stuff |
| 1304 | m_connected = false; |
| 1305 | m_establishing = false; |
| 1306 | GSocket_SetTimeout( m_socket, m_timeout ); |
| 1307 | GSocket_SetCallback( m_socket, GSOCK_INPUT_FLAG | GSOCK_OUTPUT_FLAG | |
| 1308 | GSOCK_LOST_FLAG | GSOCK_CONNECTION_FLAG, |
| 1309 | wx_socket_callback, (char*)this ); |
| 1310 | #endif |
| 1311 | } |
| 1312 | |
| 1313 | wxDatagramSocket& wxDatagramSocket::RecvFrom( wxSockAddress& addr, |
| 1314 | void* buf, |
| 1315 | wxUint32 nBytes ) |
| 1316 | { |
| 1317 | Read(buf, nBytes); |
| 1318 | GetPeer(addr); |
| 1319 | return (*this); |
| 1320 | } |
| 1321 | |
| 1322 | wxDatagramSocket& wxDatagramSocket::SendTo( wxSockAddress& addr, |
| 1323 | const void* buf, |
| 1324 | wxUint32 nBytes ) |
| 1325 | { |
| 1326 | GSocket_SetPeer(m_socket, addr.GetAddress()); |
| 1327 | Write(buf, nBytes); |
| 1328 | return (*this); |
| 1329 | } |
| 1330 | |
| 1331 | /* |
| 1332 | * ------------------------------------------------------------------------- |
| 1333 | * GAddress |
| 1334 | * ------------------------------------------------------------------------- |
| 1335 | */ |
| 1336 | |
| 1337 | /* CHECK_ADDRESS verifies that the current address family is either |
| 1338 | * GSOCK_NOFAMILY or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it |
| 1339 | * initalizes it to be a GSOCK_*family*. In other cases, it returns |
| 1340 | * an appropiate error code. |
| 1341 | * |
| 1342 | * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error. |
| 1343 | */ |
| 1344 | #define CHECK_ADDRESS(address, family) \ |
| 1345 | { \ |
| 1346 | if (address->m_family == GSOCK_NOFAMILY) \ |
| 1347 | if (_GAddress_Init_##family(address) != GSOCK_NOERROR) \ |
| 1348 | return address->m_error; \ |
| 1349 | if (address->m_family != GSOCK_##family) \ |
| 1350 | { \ |
| 1351 | address->m_error = GSOCK_INVADDR; \ |
| 1352 | return GSOCK_INVADDR; \ |
| 1353 | } \ |
| 1354 | } |
| 1355 | |
| 1356 | #define CHECK_ADDRESS_RETVAL(address, family, retval) \ |
| 1357 | { \ |
| 1358 | if (address->m_family == GSOCK_NOFAMILY) \ |
| 1359 | if (_GAddress_Init_##family(address) != GSOCK_NOERROR) \ |
| 1360 | return retval; \ |
| 1361 | if (address->m_family != GSOCK_##family) \ |
| 1362 | { \ |
| 1363 | address->m_error = GSOCK_INVADDR; \ |
| 1364 | return retval; \ |
| 1365 | } \ |
| 1366 | } |
| 1367 | |
| 1368 | |
| 1369 | GAddress *GAddress_new(void) |
| 1370 | { |
| 1371 | GAddress *address; |
| 1372 | |
| 1373 | if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL) |
| 1374 | return NULL; |
| 1375 | |
| 1376 | address->m_family = GSOCK_NOFAMILY; |
| 1377 | address->m_addr = NULL; |
| 1378 | address->m_len = 0; |
| 1379 | |
| 1380 | return address; |
| 1381 | } |
| 1382 | |
| 1383 | GAddress *GAddress_copy(GAddress *address) |
| 1384 | { |
| 1385 | GAddress *addr2; |
| 1386 | |
| 1387 | assert(address != NULL); |
| 1388 | |
| 1389 | if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL) |
| 1390 | return NULL; |
| 1391 | |
| 1392 | memcpy(addr2, address, sizeof(GAddress)); |
| 1393 | |
| 1394 | if (address->m_addr && address->m_len > 0) |
| 1395 | { |
| 1396 | addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len); |
| 1397 | if (addr2->m_addr == NULL) |
| 1398 | { |
| 1399 | free(addr2); |
| 1400 | return NULL; |
| 1401 | } |
| 1402 | |
| 1403 | memcpy(addr2->m_addr, address->m_addr, addr2->m_len); |
| 1404 | } |
| 1405 | |
| 1406 | return addr2; |
| 1407 | } |
| 1408 | |
| 1409 | void GAddress_destroy(GAddress *address) |
| 1410 | { |
| 1411 | assert( address != NULL ); |
| 1412 | |
| 1413 | if (address->m_addr) |
| 1414 | free(address->m_addr); |
| 1415 | |
| 1416 | free(address); |
| 1417 | } |
| 1418 | |
| 1419 | void GAddress_SetFamily(GAddress *address, GAddressType type) |
| 1420 | { |
| 1421 | assert(address != NULL); |
| 1422 | |
| 1423 | address->m_family = type; |
| 1424 | } |
| 1425 | |
| 1426 | GAddressType GAddress_GetFamily(GAddress *address) |
| 1427 | { |
| 1428 | assert( address != NULL ); |
| 1429 | |
| 1430 | return address->m_family; |
| 1431 | } |
| 1432 | |
| 1433 | GSocketError _GAddress_translate_from(GAddress *address, |
| 1434 | struct sockaddr *addr, int len) |
| 1435 | { |
| 1436 | address->m_realfamily = addr->sa_family; |
| 1437 | switch (addr->sa_family) |
| 1438 | { |
| 1439 | case AF_INET: |
| 1440 | address->m_family = GSOCK_INET; |
| 1441 | break; |
| 1442 | |
| 1443 | case AF_UNIX: |
| 1444 | address->m_family = GSOCK_UNIX; |
| 1445 | break; |
| 1446 | |
| 1447 | #ifdef AF_INET6 |
| 1448 | case AF_INET6: |
| 1449 | address->m_family = GSOCK_INET6; |
| 1450 | break; |
| 1451 | #endif |
| 1452 | |
| 1453 | default: |
| 1454 | { |
| 1455 | address->m_error = GSOCK_INVOP; |
| 1456 | return GSOCK_INVOP; |
| 1457 | } |
| 1458 | } |
| 1459 | |
| 1460 | if (address->m_addr) |
| 1461 | free(address->m_addr); |
| 1462 | |
| 1463 | address->m_len = len; |
| 1464 | address->m_addr = (struct sockaddr *)malloc(len); |
| 1465 | |
| 1466 | if (address->m_addr == NULL) |
| 1467 | { |
| 1468 | address->m_error = GSOCK_MEMERR; |
| 1469 | return GSOCK_MEMERR; |
| 1470 | } |
| 1471 | |
| 1472 | memcpy(address->m_addr, addr, len); |
| 1473 | |
| 1474 | return GSOCK_NOERROR; |
| 1475 | } |
| 1476 | |
| 1477 | GSocketError _GAddress_translate_to(GAddress *address, |
| 1478 | struct sockaddr **addr, int *len) |
| 1479 | { |
| 1480 | if (!address->m_addr) |
| 1481 | { |
| 1482 | address->m_error = GSOCK_INVADDR; |
| 1483 | return GSOCK_INVADDR; |
| 1484 | } |
| 1485 | |
| 1486 | *len = address->m_len; |
| 1487 | *addr = (struct sockaddr *)malloc(address->m_len); |
| 1488 | if (*addr == NULL) |
| 1489 | { |
| 1490 | address->m_error = GSOCK_MEMERR; |
| 1491 | return GSOCK_MEMERR; |
| 1492 | } |
| 1493 | |
| 1494 | memcpy(*addr, address->m_addr, address->m_len); |
| 1495 | return GSOCK_NOERROR; |
| 1496 | } |
| 1497 | |
| 1498 | /* |
| 1499 | * ------------------------------------------------------------------------- |
| 1500 | * Internet address family |
| 1501 | * ------------------------------------------------------------------------- |
| 1502 | */ |
| 1503 | |
| 1504 | GSocketError _GAddress_Init_INET(GAddress *address) |
| 1505 | { |
| 1506 | address->m_len = sizeof(struct sockaddr_in); |
| 1507 | address->m_addr = (struct sockaddr *) malloc(address->m_len); |
| 1508 | if (address->m_addr == NULL) |
| 1509 | { |
| 1510 | address->m_error = GSOCK_MEMERR; |
| 1511 | return GSOCK_MEMERR; |
| 1512 | } |
| 1513 | |
| 1514 | memset( address->m_addr , 0 , address->m_len ) ; |
| 1515 | address->m_family = GSOCK_INET; |
| 1516 | address->m_realfamily = PF_INET; |
| 1517 | ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET; |
| 1518 | ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY; |
| 1519 | |
| 1520 | return GSOCK_NOERROR; |
| 1521 | } |
| 1522 | |
| 1523 | GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) |
| 1524 | { |
| 1525 | struct hostent *he; |
| 1526 | struct in_addr *addr; |
| 1527 | |
| 1528 | assert( address != NULL ); |
| 1529 | CHECK_ADDRESS( address, INET ); |
| 1530 | |
| 1531 | addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr); |
| 1532 | |
| 1533 | // If it is a numeric host name, convert it now |
| 1534 | #if defined(HAVE_INET_ATON) |
| 1535 | if (inet_aton(hostname, addr) == 0) |
| 1536 | { |
| 1537 | #elif defined(HAVE_INET_ADDR) |
| 1538 | if ( (addr->s_addr = inet_addr(hostname)) == -1 ) |
| 1539 | { |
| 1540 | #else |
| 1541 | // Use gethostbyname by default |
| 1542 | #ifndef __WXMAC__ |
| 1543 | int val = 1; // VA doesn't like constants in conditional expressions |
| 1544 | if (val) |
| 1545 | #endif |
| 1546 | { |
| 1547 | #endif |
| 1548 | struct in_addr *array_addr; |
| 1549 | |
| 1550 | // It is a real name, we solve it |
| 1551 | if ((he = gethostbyname(hostname)) == NULL) |
| 1552 | { |
| 1553 | // Reset to invalid address |
| 1554 | addr->s_addr = INADDR_NONE; |
| 1555 | address->m_error = GSOCK_NOHOST; |
| 1556 | return GSOCK_NOHOST; |
| 1557 | } |
| 1558 | array_addr = (struct in_addr *) *(he->h_addr_list); |
| 1559 | addr->s_addr = array_addr[0].s_addr; |
| 1560 | } |
| 1561 | |
| 1562 | return GSOCK_NOERROR; |
| 1563 | } |
| 1564 | |
| 1565 | GSocketError GAddress_INET_SetAnyAddress(GAddress *address) |
| 1566 | { |
| 1567 | return GAddress_INET_SetHostAddress(address, INADDR_ANY); |
| 1568 | } |
| 1569 | |
| 1570 | GSocketError GAddress_INET_SetHostAddress(GAddress *address, |
| 1571 | unsigned long hostaddr) |
| 1572 | { |
| 1573 | struct in_addr *addr; |
| 1574 | |
| 1575 | assert( address != NULL ); |
| 1576 | CHECK_ADDRESS( address, INET ); |
| 1577 | |
| 1578 | addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr); |
| 1579 | addr->s_addr = htonl(hostaddr) ; |
| 1580 | |
| 1581 | return GSOCK_NOERROR; |
| 1582 | } |
| 1583 | |
| 1584 | GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port, |
| 1585 | const char *protocol) |
| 1586 | { |
| 1587 | struct servent *se; |
| 1588 | struct sockaddr_in *addr; |
| 1589 | |
| 1590 | assert( address != NULL ); |
| 1591 | CHECK_ADDRESS( address, INET ); |
| 1592 | |
| 1593 | if (!port) |
| 1594 | { |
| 1595 | address->m_error = GSOCK_INVPORT; |
| 1596 | return GSOCK_INVPORT; |
| 1597 | } |
| 1598 | |
| 1599 | se = getservbyname(port, protocol); |
| 1600 | if (!se) |
| 1601 | { |
| 1602 | // the cast to int suppresses compiler warnings |
| 1603 | // about subscript having the type char |
| 1604 | if (isdigit((int)port[0])) |
| 1605 | { |
| 1606 | int port_int; |
| 1607 | |
| 1608 | port_int = atoi(port); |
| 1609 | addr = (struct sockaddr_in *)address->m_addr; |
| 1610 | addr->sin_port = htons(port_int); |
| 1611 | return GSOCK_NOERROR; |
| 1612 | } |
| 1613 | |
| 1614 | address->m_error = GSOCK_INVPORT; |
| 1615 | return GSOCK_INVPORT; |
| 1616 | } |
| 1617 | |
| 1618 | addr = (struct sockaddr_in *)address->m_addr; |
| 1619 | addr->sin_port = se->s_port; |
| 1620 | |
| 1621 | return GSOCK_NOERROR; |
| 1622 | } |
| 1623 | |
| 1624 | GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port) |
| 1625 | { |
| 1626 | struct sockaddr_in *addr; |
| 1627 | |
| 1628 | assert( address != NULL ); |
| 1629 | CHECK_ADDRESS( address, INET ); |
| 1630 | |
| 1631 | addr = (struct sockaddr_in *)address->m_addr; |
| 1632 | addr->sin_port = htons(port); |
| 1633 | |
| 1634 | return GSOCK_NOERROR; |
| 1635 | } |
| 1636 | |
| 1637 | GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf) |
| 1638 | { |
| 1639 | struct hostent *he; |
| 1640 | char *addr_buf; |
| 1641 | struct sockaddr_in *addr; |
| 1642 | |
| 1643 | assert( address != NULL ); |
| 1644 | CHECK_ADDRESS( address, INET ); |
| 1645 | |
| 1646 | addr = (struct sockaddr_in *)address->m_addr; |
| 1647 | addr_buf = (char *)&(addr->sin_addr); |
| 1648 | |
| 1649 | he = gethostbyaddr(addr_buf, sizeof(addr->sin_addr), AF_INET); |
| 1650 | if (he == NULL) |
| 1651 | { |
| 1652 | address->m_error = GSOCK_NOHOST; |
| 1653 | return GSOCK_NOHOST; |
| 1654 | } |
| 1655 | |
| 1656 | strncpy(hostname, he->h_name, sbuf); |
| 1657 | |
| 1658 | return GSOCK_NOERROR; |
| 1659 | } |
| 1660 | |
| 1661 | unsigned long GAddress_INET_GetHostAddress(GAddress *address) |
| 1662 | { |
| 1663 | struct sockaddr_in *addr; |
| 1664 | |
| 1665 | assert( address != NULL ); |
| 1666 | CHECK_ADDRESS_RETVAL( address, INET, 0 ); |
| 1667 | |
| 1668 | addr = (struct sockaddr_in *)address->m_addr; |
| 1669 | |
| 1670 | return ntohl(addr->sin_addr.s_addr) ; |
| 1671 | } |
| 1672 | |
| 1673 | unsigned short GAddress_INET_GetPort(GAddress *address) |
| 1674 | { |
| 1675 | struct sockaddr_in *addr; |
| 1676 | |
| 1677 | assert( address != NULL ); |
| 1678 | CHECK_ADDRESS_RETVAL( address, INET, 0 ); |
| 1679 | |
| 1680 | addr = (struct sockaddr_in *)address->m_addr; |
| 1681 | |
| 1682 | return ntohs(addr->sin_port); |
| 1683 | } |
| 1684 | |
| 1685 | /* |
| 1686 | * ------------------------------------------------------------------------- |
| 1687 | * Unix address family |
| 1688 | * ------------------------------------------------------------------------- |
| 1689 | */ |
| 1690 | |
| 1691 | GSocketError _GAddress_Init_UNIX(GAddress *address) |
| 1692 | { |
| 1693 | address->m_len = sizeof(struct sockaddr_un); |
| 1694 | address->m_addr = (struct sockaddr *)malloc(address->m_len); |
| 1695 | if (address->m_addr == NULL) |
| 1696 | { |
| 1697 | address->m_error = GSOCK_MEMERR; |
| 1698 | return GSOCK_MEMERR; |
| 1699 | } |
| 1700 | |
| 1701 | address->m_family = GSOCK_UNIX; |
| 1702 | address->m_realfamily = PF_UNIX; |
| 1703 | ((struct sockaddr_un *)address->m_addr)->sun_family = AF_UNIX; |
| 1704 | ((struct sockaddr_un *)address->m_addr)->sun_path[0] = 0; |
| 1705 | |
| 1706 | return GSOCK_NOERROR; |
| 1707 | } |
| 1708 | |
| 1709 | #define UNIX_SOCK_PATHLEN (sizeof(addr->sun_path)/sizeof(addr->sun_path[0])) |
| 1710 | |
| 1711 | GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path) |
| 1712 | { |
| 1713 | struct sockaddr_un *addr; |
| 1714 | |
| 1715 | assert( address != NULL ); |
| 1716 | CHECK_ADDRESS( address, UNIX ); |
| 1717 | |
| 1718 | addr = ((struct sockaddr_un *)address->m_addr); |
| 1719 | strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN); |
| 1720 | addr->sun_path[UNIX_SOCK_PATHLEN - 1] = '\0'; |
| 1721 | |
| 1722 | return GSOCK_NOERROR; |
| 1723 | } |
| 1724 | |
| 1725 | GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf) |
| 1726 | { |
| 1727 | struct sockaddr_un *addr; |
| 1728 | |
| 1729 | assert( address != NULL ); |
| 1730 | CHECK_ADDRESS( address, UNIX ); |
| 1731 | |
| 1732 | addr = (struct sockaddr_un *)address->m_addr; |
| 1733 | |
| 1734 | strncpy(path, addr->sun_path, sbuf); |
| 1735 | |
| 1736 | return GSOCK_NOERROR; |
| 1737 | } |
| 1738 | |
| 1739 | /* Address handling */ |
| 1740 | |
| 1741 | /* GSocket_SetLocal: |
| 1742 | * GSocket_GetLocal: |
| 1743 | * GSocket_SetPeer: |
| 1744 | * GSocket_GetPeer: |
| 1745 | * Set or get the local or peer address for this socket. The 'set' |
| 1746 | * functions return GSOCK_NOERROR on success, an error code otherwise. |
| 1747 | * The 'get' functions return a pointer to a GAddress object on success, |
| 1748 | * or NULL otherwise, in which case they set the error code of the |
| 1749 | * corresponding GSocket. |
| 1750 | * |
| 1751 | * Error codes: |
| 1752 | * GSOCK_INVSOCK - the socket is not valid. |
| 1753 | * GSOCK_INVADDR - the address is not valid. |
| 1754 | */ |
| 1755 | |
| 1756 | GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address) |
| 1757 | { |
| 1758 | assert( socket != NULL ); |
| 1759 | |
| 1760 | // the socket must be initialized, or it must be a server |
| 1761 | if ((socket->m_fd != INVALID_SOCKET && !socket->m_server)) |
| 1762 | { |
| 1763 | socket->m_error = GSOCK_INVSOCK; |
| 1764 | return GSOCK_INVSOCK; |
| 1765 | } |
| 1766 | |
| 1767 | // check address |
| 1768 | if (address == NULL || address->m_family == GSOCK_NOFAMILY) |
| 1769 | { |
| 1770 | socket->m_error = GSOCK_INVADDR; |
| 1771 | return GSOCK_INVADDR; |
| 1772 | } |
| 1773 | |
| 1774 | if (socket->m_local) |
| 1775 | GAddress_destroy(socket->m_local); |
| 1776 | |
| 1777 | socket->m_local = GAddress_copy(address); |
| 1778 | |
| 1779 | return GSOCK_NOERROR; |
| 1780 | } |
| 1781 | |
| 1782 | GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address) |
| 1783 | { |
| 1784 | assert(socket != NULL); |
| 1785 | |
| 1786 | // check address |
| 1787 | if (address == NULL || address->m_family == GSOCK_NOFAMILY) |
| 1788 | { |
| 1789 | socket->m_error = GSOCK_INVADDR; |
| 1790 | return GSOCK_INVADDR; |
| 1791 | } |
| 1792 | |
| 1793 | if (socket->m_peer) |
| 1794 | GAddress_destroy(socket->m_peer); |
| 1795 | |
| 1796 | socket->m_peer = GAddress_copy(address); |
| 1797 | |
| 1798 | return GSOCK_NOERROR; |
| 1799 | } |
| 1800 | |
| 1801 | GAddress *GSocket_GetLocal(GSocket *socket) |
| 1802 | { |
| 1803 | GAddress *address; |
| 1804 | struct sockaddr addr; |
| 1805 | socklen_t size = sizeof(addr); |
| 1806 | GSocketError err; |
| 1807 | |
| 1808 | assert( socket != NULL ); |
| 1809 | |
| 1810 | // try to get it from the m_local var first |
| 1811 | if (socket->m_local) |
| 1812 | return GAddress_copy(socket->m_local); |
| 1813 | |
| 1814 | // else, if the socket is initialized, try getsockname |
| 1815 | if (socket->m_fd == INVALID_SOCKET) |
| 1816 | { |
| 1817 | socket->m_error = GSOCK_INVSOCK; |
| 1818 | return NULL; |
| 1819 | } |
| 1820 | |
| 1821 | if (getsockname(socket->m_fd, &addr, (socklen_t *) &size) < 0) |
| 1822 | { |
| 1823 | socket->m_error = GSOCK_IOERR; |
| 1824 | return NULL; |
| 1825 | } |
| 1826 | |
| 1827 | // got a valid address from getsockname, create a GAddress object |
| 1828 | address = GAddress_new(); |
| 1829 | if (address == NULL) |
| 1830 | { |
| 1831 | socket->m_error = GSOCK_MEMERR; |
| 1832 | return NULL; |
| 1833 | } |
| 1834 | |
| 1835 | err = _GAddress_translate_from(address, &addr, size); |
| 1836 | if (err != GSOCK_NOERROR) |
| 1837 | { |
| 1838 | GAddress_destroy(address); |
| 1839 | socket->m_error = err; |
| 1840 | return NULL; |
| 1841 | } |
| 1842 | |
| 1843 | return address; |
| 1844 | } |
| 1845 | |
| 1846 | GAddress *GSocket_GetPeer(GSocket *socket) |
| 1847 | { |
| 1848 | assert(socket != NULL); |
| 1849 | |
| 1850 | // try to get it from the m_peer var |
| 1851 | if (socket->m_peer) |
| 1852 | return GAddress_copy(socket->m_peer); |
| 1853 | |
| 1854 | return NULL; |
| 1855 | } |
| 1856 | |
| 1857 | |
| 1858 | GSocket *GSocket_new(void) |
| 1859 | { |
| 1860 | GSocket *socket; |
| 1861 | socket = (GSocket *)malloc(sizeof(GSocket)); |
| 1862 | |
| 1863 | if (socket == NULL) |
| 1864 | return NULL; |
| 1865 | |
| 1866 | socket->m_fd = INVALID_SOCKET; |
| 1867 | |
| 1868 | for (int i=0;i<GSOCK_MAX_EVENT;i++) |
| 1869 | { |
| 1870 | socket->m_cbacks[i] = NULL; |
| 1871 | } |
| 1872 | |
| 1873 | socket->m_detected = 0; |
| 1874 | |
| 1875 | socket->m_local = NULL; |
| 1876 | socket->m_peer = NULL; |
| 1877 | socket->m_error = GSOCK_NOERROR; |
| 1878 | |
| 1879 | socket->m_non_blocking = false ; |
| 1880 | socket->m_stream = true; |
| 1881 | // socket->m_oriented = true; |
| 1882 | socket->m_server = false; |
| 1883 | socket->m_establishing = false; |
| 1884 | socket->m_timeout = 10 * 60 * 1000; |
| 1885 | // 10 minutes * 60 sec * 1000 millisec |
| 1886 | |
| 1887 | socket->m_cfSocket = NULL ; |
| 1888 | socket->m_runLoopSource = NULL ; |
| 1889 | socket->m_readStream = NULL; |
| 1890 | socket->m_writeStream = NULL; |
| 1891 | |
| 1892 | return socket ; |
| 1893 | } |
| 1894 | |
| 1895 | void GSocket_close(GSocket *socket) |
| 1896 | { |
| 1897 | if ( socket->m_cfSocket != NULL ) |
| 1898 | { |
| 1899 | if ( socket->m_readStream ) |
| 1900 | { |
| 1901 | CFReadStreamClose(socket->m_readStream); |
| 1902 | CFRelease( socket->m_readStream ) ; |
| 1903 | socket->m_readStream = NULL ; |
| 1904 | } |
| 1905 | |
| 1906 | if ( socket->m_writeStream ) |
| 1907 | { |
| 1908 | CFWriteStreamClose(socket->m_writeStream); |
| 1909 | CFRelease( socket->m_writeStream ) ; |
| 1910 | socket->m_writeStream = NULL ; |
| 1911 | } |
| 1912 | |
| 1913 | CFSocketInvalidate( socket->m_cfSocket ) ; |
| 1914 | CFRelease( socket->m_cfSocket ) ; |
| 1915 | socket->m_cfSocket = NULL ; |
| 1916 | socket->m_fd = INVALID_SOCKET ; |
| 1917 | } |
| 1918 | } |
| 1919 | |
| 1920 | void GSocket_Shutdown(GSocket *socket) |
| 1921 | { |
| 1922 | GSocket_close( socket ); |
| 1923 | |
| 1924 | // Disable GUI callbacks |
| 1925 | for (int evt = 0; evt < GSOCK_MAX_EVENT; evt++) |
| 1926 | socket->m_cbacks[evt] = NULL; |
| 1927 | |
| 1928 | socket->m_detected = GSOCK_LOST_FLAG; |
| 1929 | } |
| 1930 | |
| 1931 | void GSocket_destroy(GSocket *socket) |
| 1932 | { |
| 1933 | assert( socket != NULL ); |
| 1934 | |
| 1935 | // Check that the socket is really shut down |
| 1936 | if (socket->m_fd != INVALID_SOCKET) |
| 1937 | GSocket_Shutdown(socket); |
| 1938 | |
| 1939 | // Destroy private addresses |
| 1940 | if (socket->m_local) |
| 1941 | GAddress_destroy(socket->m_local); |
| 1942 | |
| 1943 | if (socket->m_peer) |
| 1944 | GAddress_destroy(socket->m_peer); |
| 1945 | |
| 1946 | // Destroy the socket itself |
| 1947 | free(socket); |
| 1948 | } |
| 1949 | |
| 1950 | GSocketError GSocket_Connect(GSocket *socket, GSocketStream stream) |
| 1951 | { |
| 1952 | assert( socket != NULL ); |
| 1953 | |
| 1954 | if (socket->m_fd != INVALID_SOCKET) |
| 1955 | { |
| 1956 | socket->m_error = GSOCK_INVSOCK; |
| 1957 | return GSOCK_INVSOCK; |
| 1958 | } |
| 1959 | |
| 1960 | if (!socket->m_peer) |
| 1961 | { |
| 1962 | socket->m_error = GSOCK_INVADDR; |
| 1963 | return GSOCK_INVADDR; |
| 1964 | } |
| 1965 | |
| 1966 | // Streamed or dgram socket? |
| 1967 | socket->m_stream = (stream == GSOCK_STREAMED); |
| 1968 | socket->m_oriented = true; |
| 1969 | socket->m_server = false; |
| 1970 | socket->m_establishing = false; |
| 1971 | |
| 1972 | GSocketError returnErr = GSOCK_NOERROR ; |
| 1973 | CFSocketError err ; |
| 1974 | |
| 1975 | CFAllocatorRef alloc = kCFAllocatorDefault ; |
| 1976 | CFSocketContext ctx ; |
| 1977 | memset( &ctx , 0 , sizeof( ctx ) ) ; |
| 1978 | ctx.info = socket ; |
| 1979 | socket->m_cfSocket = CFSocketCreate( alloc , socket->m_peer->m_realfamily , |
| 1980 | stream == GSOCK_STREAMED ? SOCK_STREAM : SOCK_DGRAM , 0 , |
| 1981 | kCFSocketReadCallBack | kCFSocketWriteCallBack | kCFSocketConnectCallBack , wxMacCFSocketCallback , &ctx ) ; |
| 1982 | _GSocket_Enable(socket, GSOCK_CONNECTION); |
| 1983 | |
| 1984 | socket->m_fd = CFSocketGetNative( socket->m_cfSocket ) ; |
| 1985 | |
| 1986 | CFStreamCreatePairWithSocket ( alloc , socket->m_fd , &socket->m_readStream , &socket->m_writeStream ); |
| 1987 | if ((socket->m_readStream == NULL) || (socket->m_writeStream == NULL)) |
| 1988 | { |
| 1989 | GSocket_close(socket); |
| 1990 | socket->m_error = GSOCK_IOERR; |
| 1991 | return GSOCK_IOERR; |
| 1992 | } |
| 1993 | |
| 1994 | if ( !CFReadStreamOpen( socket->m_readStream ) || !CFWriteStreamOpen( socket->m_writeStream ) ) |
| 1995 | { |
| 1996 | GSocket_close(socket); |
| 1997 | socket->m_error = GSOCK_IOERR; |
| 1998 | return GSOCK_IOERR; |
| 1999 | } |
| 2000 | |
| 2001 | CFRunLoopSourceRef rls = CFSocketCreateRunLoopSource(alloc , socket->m_cfSocket , 0); |
| 2002 | CFRunLoopAddSource(CFRunLoopGetCurrent() , rls, kCFRunLoopCommonModes); |
| 2003 | CFRelease(rls); |
| 2004 | |
| 2005 | CFDataRef address = CFDataCreateWithBytesNoCopy(alloc, (const UInt8*) socket->m_peer->m_addr, socket->m_peer->m_len , kCFAllocatorNull); |
| 2006 | if ( !address ) |
| 2007 | return GSOCK_MEMERR ; |
| 2008 | |
| 2009 | err = CFSocketConnectToAddress( socket->m_cfSocket , address, socket->m_non_blocking ? -1 : socket->m_timeout / 1000 ) ; |
| 2010 | CFRelease(address); |
| 2011 | |
| 2012 | if (err != kCFSocketSuccess) |
| 2013 | { |
| 2014 | if ( err == kCFSocketTimeout ) |
| 2015 | { |
| 2016 | GSocket_close(socket); |
| 2017 | socket->m_error = GSOCK_TIMEDOUT ; |
| 2018 | return GSOCK_TIMEDOUT ; |
| 2019 | } |
| 2020 | |
| 2021 | // we don't know whether a connect in progress will be issued like this |
| 2022 | if ( err != kCFSocketTimeout && socket->m_non_blocking ) |
| 2023 | { |
| 2024 | socket->m_establishing = true; |
| 2025 | socket->m_error = GSOCK_WOULDBLOCK; |
| 2026 | return GSOCK_WOULDBLOCK; |
| 2027 | } |
| 2028 | |
| 2029 | GSocket_close(socket); |
| 2030 | socket->m_error = GSOCK_IOERR; |
| 2031 | return GSOCK_IOERR; |
| 2032 | } |
| 2033 | |
| 2034 | return GSOCK_NOERROR; |
| 2035 | } |
| 2036 | |
| 2037 | /* Flags */ |
| 2038 | |
| 2039 | /* GSocket_SetNonBlocking: |
| 2040 | * Sets the socket to non-blocking mode. |
| 2041 | * All IO calls will return immediately. |
| 2042 | */ |
| 2043 | void GSocket_SetNonBlocking(GSocket *socket, int non_block) |
| 2044 | { |
| 2045 | assert( socket != NULL ); |
| 2046 | |
| 2047 | // GSocket_Debug( ("GSocket_SetNonBlocking: %d\n", (int)non_block) ); |
| 2048 | |
| 2049 | socket->m_non_blocking = non_block; |
| 2050 | } |
| 2051 | |
| 2052 | /* |
| 2053 | * GSocket_SetTimeout: |
| 2054 | * Sets the timeout for blocking calls. Time is expressed in |
| 2055 | * milliseconds. |
| 2056 | */ |
| 2057 | void GSocket_SetTimeout(GSocket *socket, unsigned long millisec) |
| 2058 | { |
| 2059 | assert( socket != NULL ); |
| 2060 | |
| 2061 | socket->m_timeout = millisec; |
| 2062 | } |
| 2063 | |
| 2064 | /* GSocket_GetError: |
| 2065 | * Returns the last error which occurred for this socket. Note that successful |
| 2066 | * operations do not clear this back to GSOCK_NOERROR, so use it only |
| 2067 | * after an error. |
| 2068 | */ |
| 2069 | GSocketError GSocket_GetError(GSocket *socket) |
| 2070 | { |
| 2071 | assert( socket != NULL ); |
| 2072 | |
| 2073 | return socket->m_error; |
| 2074 | } |
| 2075 | |
| 2076 | /* Callbacks */ |
| 2077 | |
| 2078 | /* GSOCK_INPUT: |
| 2079 | * There is data to be read in the input buffer. If, after a read |
| 2080 | * operation, there is still data available, the callback function will |
| 2081 | * be called again. |
| 2082 | * GSOCK_OUTPUT: |
| 2083 | * The socket is available for writing. That is, the next write call |
| 2084 | * won't block. This event is generated only once, when the connection is |
| 2085 | * first established, and then only if a call failed with GSOCK_WOULDBLOCK, |
| 2086 | * when the output buffer empties again. This means that the app should |
| 2087 | * assume that it can write since the first OUTPUT event, and no more |
| 2088 | * OUTPUT events will be generated unless an error occurs. |
| 2089 | * GSOCK_CONNECTION: |
| 2090 | * Connection successfully established, for client sockets, or incoming |
| 2091 | * client connection, for server sockets. Wait for this event (also watch |
| 2092 | * out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call. |
| 2093 | * GSOCK_LOST: |
| 2094 | * The connection is lost (or a connection request failed); this could |
| 2095 | * be due to a failure, or due to the peer closing it gracefully. |
| 2096 | */ |
| 2097 | |
| 2098 | /* GSocket_SetCallback: |
| 2099 | * Enables the callbacks specified by 'flags'. Note that 'flags' |
| 2100 | * may be a combination of flags OR'ed toghether, so the same |
| 2101 | * callback function can be made to accept different events. |
| 2102 | * The callback function must have the following prototype: |
| 2103 | * |
| 2104 | * void function(GSocket *socket, GSocketEvent event, char *cdata) |
| 2105 | */ |
| 2106 | void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags, |
| 2107 | GSocketCallback callback, char *cdata) |
| 2108 | { |
| 2109 | int count; |
| 2110 | |
| 2111 | assert( socket != NULL ); |
| 2112 | |
| 2113 | for (count = 0; count < GSOCK_MAX_EVENT; count++) |
| 2114 | { |
| 2115 | if ((flags & (1 << count)) != 0) |
| 2116 | { |
| 2117 | socket->m_cbacks[count] = callback; |
| 2118 | socket->m_data[count] = cdata; |
| 2119 | } |
| 2120 | } |
| 2121 | } |
| 2122 | |
| 2123 | /* GSocket_UnsetCallback: |
| 2124 | * Disables all callbacks specified by 'flags', which may be a |
| 2125 | * combination of flags OR'ed toghether. |
| 2126 | */ |
| 2127 | void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags) |
| 2128 | { |
| 2129 | int count; |
| 2130 | |
| 2131 | assert(socket != NULL); |
| 2132 | |
| 2133 | for (count = 0; count < GSOCK_MAX_EVENT; count++) |
| 2134 | { |
| 2135 | if ((flags & (1 << count)) != 0) |
| 2136 | { |
| 2137 | socket->m_cbacks[count] = NULL; |
| 2138 | socket->m_data[count] = NULL; |
| 2139 | } |
| 2140 | } |
| 2141 | } |
| 2142 | |
| 2143 | |
| 2144 | #define CALL_CALLBACK(socket, event) { \ |
| 2145 | _GSocket_Disable(socket, event); \ |
| 2146 | if (socket->m_cbacks[event]) \ |
| 2147 | socket->m_cbacks[event](socket, event, socket->m_data[event]); \ |
| 2148 | } |
| 2149 | |
| 2150 | void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event) |
| 2151 | { |
| 2152 | int c; |
| 2153 | switch (event) |
| 2154 | { |
| 2155 | case GSOCK_CONNECTION: |
| 2156 | if (socket->m_server) |
| 2157 | c = kCFSocketReadCallBack; |
| 2158 | else |
| 2159 | c = kCFSocketConnectCallBack; |
| 2160 | break; |
| 2161 | |
| 2162 | case GSOCK_LOST: |
| 2163 | case GSOCK_INPUT: |
| 2164 | c = kCFSocketReadCallBack; |
| 2165 | break; |
| 2166 | |
| 2167 | case GSOCK_OUTPUT: |
| 2168 | c = kCFSocketWriteCallBack; |
| 2169 | break; |
| 2170 | |
| 2171 | default: |
| 2172 | c = 0; |
| 2173 | } |
| 2174 | |
| 2175 | CFSocketEnableCallBacks(socket->m_cfSocket, c); |
| 2176 | } |
| 2177 | |
| 2178 | void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event) |
| 2179 | { |
| 2180 | int c; |
| 2181 | switch (event) |
| 2182 | { |
| 2183 | case GSOCK_CONNECTION: |
| 2184 | if (socket->m_server) |
| 2185 | c = kCFSocketReadCallBack; |
| 2186 | else |
| 2187 | c = kCFSocketConnectCallBack; |
| 2188 | break; |
| 2189 | |
| 2190 | case GSOCK_LOST: |
| 2191 | case GSOCK_INPUT: |
| 2192 | c = kCFSocketReadCallBack; |
| 2193 | break; |
| 2194 | |
| 2195 | case GSOCK_OUTPUT: |
| 2196 | c = kCFSocketWriteCallBack; |
| 2197 | break; |
| 2198 | |
| 2199 | default: |
| 2200 | c = 0; |
| 2201 | break; |
| 2202 | } |
| 2203 | |
| 2204 | CFSocketDisableCallBacks(socket->m_cfSocket, c); |
| 2205 | } |
| 2206 | |
| 2207 | void _GSocket_Enable(GSocket *socket, GSocketEvent event) |
| 2208 | { |
| 2209 | socket->m_detected &= ~(1 << event); |
| 2210 | _GSocket_Install_Callback(socket, event); |
| 2211 | } |
| 2212 | |
| 2213 | void _GSocket_Disable(GSocket *socket, GSocketEvent event) |
| 2214 | { |
| 2215 | socket->m_detected |= (1 << event); |
| 2216 | _GSocket_Uninstall_Callback(socket, event); |
| 2217 | } |
| 2218 | |
| 2219 | void wxMacCFSocketCallback(CFSocketRef s, CFSocketCallBackType callbackType, |
| 2220 | CFDataRef address, const void* data, void* info) |
| 2221 | { |
| 2222 | GSocket* socket = (GSocket*)info; |
| 2223 | |
| 2224 | switch (callbackType) |
| 2225 | { |
| 2226 | case kCFSocketConnectCallBack: |
| 2227 | if ( data ) |
| 2228 | { |
| 2229 | SInt32 error = *((SInt32*)data) ; |
| 2230 | CALL_CALLBACK( socket , GSOCK_LOST ) ; |
| 2231 | GSocket_Shutdown(socket); |
| 2232 | } |
| 2233 | else |
| 2234 | { |
| 2235 | CALL_CALLBACK( socket , GSOCK_CONNECTION ) ; |
| 2236 | } |
| 2237 | break; |
| 2238 | |
| 2239 | case kCFSocketReadCallBack: |
| 2240 | CALL_CALLBACK( socket , GSOCK_INPUT ) ; |
| 2241 | break; |
| 2242 | |
| 2243 | case kCFSocketWriteCallBack: |
| 2244 | CALL_CALLBACK( socket , GSOCK_OUTPUT ) ; |
| 2245 | break; |
| 2246 | |
| 2247 | default: |
| 2248 | break; // We shouldn't get here. |
| 2249 | } |
| 2250 | } |
| 2251 | |
| 2252 | int GSocket_Read(GSocket *socket, char *buffer, int size) |
| 2253 | { |
| 2254 | int ret = 0 ; |
| 2255 | |
| 2256 | assert(socket != NULL); |
| 2257 | // if ( !CFReadStreamHasBytesAvailable() ) |
| 2258 | ret = CFReadStreamRead( socket->m_readStream , (UInt8*) buffer , size ) ; |
| 2259 | |
| 2260 | return ret; |
| 2261 | } |
| 2262 | |
| 2263 | int GSocket_Write(GSocket *socket, const char *buffer, int size) |
| 2264 | { |
| 2265 | int ret; |
| 2266 | |
| 2267 | assert(socket != NULL); |
| 2268 | ret = CFWriteStreamWrite( socket->m_writeStream , (UInt8*) buffer , size ) ; |
| 2269 | |
| 2270 | return ret; |
| 2271 | } |
| 2272 | |
| 2273 | GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags) |
| 2274 | { |
| 2275 | assert( socket != NULL ); |
| 2276 | |
| 2277 | return flags & socket->m_detected; |
| 2278 | } |
| 2279 | |
| 2280 | // ========================================================================== |
| 2281 | // wxSocketModule |
| 2282 | // ========================================================================== |
| 2283 | |
| 2284 | class wxSocketModule : public wxModule |
| 2285 | { |
| 2286 | public: |
| 2287 | virtual bool OnInit() |
| 2288 | { |
| 2289 | // wxSocketBase will call GSocket_Init() itself when/if needed |
| 2290 | return true; |
| 2291 | } |
| 2292 | |
| 2293 | virtual void OnExit() |
| 2294 | { |
| 2295 | if ( wxSocketBase::IsInitialized() ) |
| 2296 | wxSocketBase::Shutdown(); |
| 2297 | } |
| 2298 | |
| 2299 | private: |
| 2300 | DECLARE_DYNAMIC_CLASS(wxSocketModule) |
| 2301 | }; |
| 2302 | |
| 2303 | IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule) |
| 2304 | |
| 2305 | #endif |
| 2306 | // wxUSE_SOCKETS |