| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: samples/sockbase/client.cpp |
| 3 | // Purpose: Sockets sample for wxBase |
| 4 | // Author: Lukasz Michalski |
| 5 | // Modified by: |
| 6 | // Created: 27.06.2005 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2005 Lukasz Michalski <lmichalski@user.sourceforge.net> |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #include "wx/wx.h" |
| 21 | #include "wx/socket.h" |
| 22 | #include "wx/event.h" |
| 23 | #include "wx/list.h" |
| 24 | #include "wx/cmdline.h" |
| 25 | #include "wx/datetime.h" |
| 26 | #include "wx/timer.h" |
| 27 | #include "wx/thread.h" |
| 28 | |
| 29 | const char *GetSocketErrorMsg(int pSockError) |
| 30 | { |
| 31 | switch(pSockError) |
| 32 | { |
| 33 | case wxSOCKET_NOERROR: |
| 34 | return "wxSOCKET_NOERROR"; |
| 35 | |
| 36 | case wxSOCKET_INVOP: |
| 37 | return "wxSOCKET_INVOP"; |
| 38 | |
| 39 | case wxSOCKET_IOERR: |
| 40 | return "wxSOCKET_IOERR"; |
| 41 | |
| 42 | case wxSOCKET_INVADDR: |
| 43 | return "wxSOCKET_INVADDR"; |
| 44 | |
| 45 | case wxSOCKET_NOHOST: |
| 46 | return "wxSOCKET_NOHOST"; |
| 47 | |
| 48 | case wxSOCKET_INVPORT: |
| 49 | return "wxSOCKET_INVPORT"; |
| 50 | |
| 51 | case wxSOCKET_WOULDBLOCK: |
| 52 | return "wxSOCKET_WOULDBLOCK"; |
| 53 | |
| 54 | case wxSOCKET_TIMEDOUT: |
| 55 | return "wxSOCKET_TIMEDOUT"; |
| 56 | |
| 57 | case wxSOCKET_MEMERR: |
| 58 | return "wxSOCKET_MEMERR"; |
| 59 | |
| 60 | default: |
| 61 | return "Unknown"; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | //event sent by workers to server class |
| 66 | //after client is served |
| 67 | const wxEventType wxEVT_WORKER = wxNewEventType(); |
| 68 | #define EVT_WORKER(func) DECLARE_EVENT_TABLE_ENTRY( wxEVT_WORKER, -1, -1, (wxObjectEventFunction) (wxEventFunction) (WorkerEventFunction) & func, (wxObject *) NULL ), |
| 69 | |
| 70 | class WorkerEvent : public wxEvent |
| 71 | { |
| 72 | public: |
| 73 | WorkerEvent(void* pSender) |
| 74 | { |
| 75 | SetId(-1); |
| 76 | SetEventType(wxEVT_WORKER); |
| 77 | m_sender = pSender; |
| 78 | m_exit = false; |
| 79 | m_workerFailed = false; |
| 80 | } |
| 81 | |
| 82 | virtual wxEvent* Clone() const |
| 83 | { |
| 84 | return new WorkerEvent(*this); |
| 85 | } |
| 86 | |
| 87 | void* m_sender; |
| 88 | bool m_exit; |
| 89 | bool m_workerFailed; |
| 90 | }; |
| 91 | |
| 92 | typedef void (wxEvtHandler::*WorkerEventFunction)(WorkerEvent&); |
| 93 | |
| 94 | class ThreadWorker; |
| 95 | class EventWorker; |
| 96 | |
| 97 | WX_DECLARE_LIST(ThreadWorker, TList); |
| 98 | WX_DECLARE_LIST(EventWorker, EList); |
| 99 | |
| 100 | //main server class contains listening socket |
| 101 | //and list of two type worker classes that serve clients |
| 102 | class Server : public wxApp |
| 103 | { |
| 104 | DECLARE_EVENT_TABLE() |
| 105 | public: |
| 106 | Server() : m_maxConnections(-1) {} |
| 107 | ~Server() {} |
| 108 | private: |
| 109 | enum WorkMode |
| 110 | { |
| 111 | MIXED, |
| 112 | THREADS, |
| 113 | EVENTS |
| 114 | }; |
| 115 | |
| 116 | virtual bool OnInit(); |
| 117 | virtual int OnExit(); |
| 118 | |
| 119 | void OnInitCmdLine(wxCmdLineParser& pParser); |
| 120 | bool OnCmdLineParsed(wxCmdLineParser& pParser); |
| 121 | |
| 122 | void OnSocketEvent(wxSocketEvent& pEvent); |
| 123 | void OnWorkerEvent(WorkerEvent& pEvent); |
| 124 | void OnTimerEvent(wxTimerEvent& pEvent); |
| 125 | void DumpStatistics(); |
| 126 | |
| 127 | TList m_threadWorkers; |
| 128 | EList m_eventWorkers; |
| 129 | WorkMode m_workMode; |
| 130 | wxSocketServer* m_listeningSocket; |
| 131 | |
| 132 | // statistics |
| 133 | unsigned m_threadWorkersCreated; |
| 134 | unsigned m_threadWorkersDone; |
| 135 | unsigned m_threadWorkersFailed; |
| 136 | unsigned m_maxThreadWorkers; |
| 137 | |
| 138 | unsigned m_eventWorkersCreated; |
| 139 | unsigned m_eventWorkersDone; |
| 140 | unsigned m_eventWorkersFailed; |
| 141 | unsigned m_maxEventWorkers; |
| 142 | |
| 143 | long int m_maxConnections; |
| 144 | |
| 145 | unsigned short m_port; |
| 146 | |
| 147 | wxTimer mTimer; |
| 148 | }; |
| 149 | |
| 150 | DECLARE_APP(Server); |
| 151 | |
| 152 | // just some common things shared between ThreadWorker and EventWorker |
| 153 | class WorkerBase |
| 154 | { |
| 155 | protected: |
| 156 | // outputs log message with IP and TCP port number prepended |
| 157 | void LogWorker(const wxString& msg, wxLogLevel level = wxLOG_Info) |
| 158 | { |
| 159 | wxLogGeneric(level, |
| 160 | "%s:%d %s", m_peer.IPAddress(), m_peer.Service(), msg); |
| 161 | } |
| 162 | |
| 163 | wxIPV4address m_peer; |
| 164 | }; |
| 165 | |
| 166 | //thread based worker reads signature and all data first from connected client |
| 167 | //and resends data to client after reading |
| 168 | class ThreadWorker : public wxThread, private WorkerBase |
| 169 | { |
| 170 | public: |
| 171 | ThreadWorker(wxSocketBase* pSocket); |
| 172 | virtual ExitCode Entry(); |
| 173 | |
| 174 | private: |
| 175 | wxSocketBase* m_socket; |
| 176 | }; |
| 177 | |
| 178 | //event based worker reads signature and creates buffer for incoming data. |
| 179 | //When part of data arrives this worker resends it as soon as possible. |
| 180 | class EventWorker : public wxEvtHandler, private WorkerBase |
| 181 | { |
| 182 | public: |
| 183 | EventWorker(wxSocketBase* pSock); |
| 184 | virtual ~EventWorker(); |
| 185 | |
| 186 | private: |
| 187 | wxSocketBase* m_socket; |
| 188 | |
| 189 | unsigned char m_signature[2]; |
| 190 | char* m_inbuf; |
| 191 | int m_infill; |
| 192 | int m_size; |
| 193 | char* m_outbuf; |
| 194 | int m_outfill; |
| 195 | int m_written; |
| 196 | |
| 197 | void OnSocketEvent(wxSocketEvent& pEvent); |
| 198 | void DoWrite(); |
| 199 | void DoRead(); |
| 200 | |
| 201 | DECLARE_EVENT_TABLE() |
| 202 | }; |
| 203 | |
| 204 | /******************* Implementation ******************/ |
| 205 | IMPLEMENT_APP_CONSOLE(Server) |
| 206 | |
| 207 | #include <wx/listimpl.cpp> |
| 208 | WX_DEFINE_LIST(TList); |
| 209 | WX_DEFINE_LIST(EList); |
| 210 | |
| 211 | |
| 212 | void |
| 213 | Server::OnInitCmdLine(wxCmdLineParser& pParser) |
| 214 | { |
| 215 | wxApp::OnInitCmdLine(pParser); |
| 216 | pParser.AddSwitch("t","threads","Use thread based workers only"); |
| 217 | pParser.AddSwitch("e","events","Use event based workers only"); |
| 218 | pParser.AddOption("m","max","Exit after <n> connections", |
| 219 | wxCMD_LINE_VAL_NUMBER); |
| 220 | pParser.AddOption("p","port","listen on given port (default 3000)", |
| 221 | wxCMD_LINE_VAL_NUMBER); |
| 222 | } |
| 223 | |
| 224 | void |
| 225 | Server::DumpStatistics() |
| 226 | { |
| 227 | wxString mode; |
| 228 | switch(m_workMode) |
| 229 | { |
| 230 | case EVENTS: |
| 231 | mode = "Event based workers"; |
| 232 | break; |
| 233 | case THREADS: |
| 234 | mode = "Thread based workers"; |
| 235 | break; |
| 236 | case MIXED: |
| 237 | mode = "Event and thread based workers"; |
| 238 | break; |
| 239 | } |
| 240 | wxLogMessage("Server mode: %s",mode); |
| 241 | wxLogMessage("\t\t\t\tThreads\tEvents\tTotal"); |
| 242 | wxLogMessage("Workers created:\t\t%d\t%d\t%d", |
| 243 | m_threadWorkersCreated, |
| 244 | m_eventWorkersCreated, |
| 245 | m_threadWorkersCreated + m_eventWorkersCreated); |
| 246 | wxLogMessage("Max concurrent workers:\t%d\t%d\t%d", |
| 247 | m_maxThreadWorkers, |
| 248 | m_maxEventWorkers, |
| 249 | m_maxThreadWorkers + m_maxEventWorkers); |
| 250 | wxLogMessage("Workers failed:\t\t%d\t%d\t%d", |
| 251 | m_threadWorkersFailed, |
| 252 | m_eventWorkersFailed, |
| 253 | m_threadWorkersFailed + m_eventWorkersFailed); |
| 254 | wxLogMessage("Workers done:\t\t%d\t%d\t%d", |
| 255 | m_threadWorkersDone, |
| 256 | m_eventWorkersDone, |
| 257 | m_threadWorkersDone + m_eventWorkersDone); |
| 258 | |
| 259 | if ((int)(m_threadWorkersDone+m_eventWorkersDone) == m_maxConnections) |
| 260 | { |
| 261 | wxLogMessage("%ld connection(s) served, exiting",m_maxConnections); |
| 262 | ExitMainLoop(); |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | |
| 267 | bool |
| 268 | Server::OnCmdLineParsed(wxCmdLineParser& pParser) |
| 269 | { |
| 270 | if (pParser.Found("verbose")) |
| 271 | { |
| 272 | wxLog::AddTraceMask("wxSocket"); |
| 273 | wxLog::AddTraceMask("epolldispatcher"); |
| 274 | wxLog::AddTraceMask("selectdispatcher"); |
| 275 | wxLog::AddTraceMask("thread"); |
| 276 | wxLog::AddTraceMask("events"); |
| 277 | wxLog::AddTraceMask("timer"); |
| 278 | } |
| 279 | |
| 280 | if (pParser.Found("m",&m_maxConnections)) |
| 281 | { |
| 282 | wxLogMessage("%ld connection(s) to exit",m_maxConnections); |
| 283 | } |
| 284 | |
| 285 | long port; |
| 286 | if (pParser.Found("p", &port)) |
| 287 | { |
| 288 | if ( port <= 0 || port > USHRT_MAX ) |
| 289 | { |
| 290 | wxLogError("Invalid port number %ld, must be in 0..%u range.", |
| 291 | port, USHRT_MAX); |
| 292 | return false; |
| 293 | } |
| 294 | |
| 295 | m_port = static_cast<unsigned short>(port); |
| 296 | wxLogMessage("Will listen on port %u", m_port); |
| 297 | } |
| 298 | |
| 299 | if (pParser.Found("t")) |
| 300 | m_workMode = THREADS; |
| 301 | else if (pParser.Found("e")) |
| 302 | m_workMode = EVENTS; |
| 303 | else |
| 304 | m_workMode = MIXED; |
| 305 | |
| 306 | return wxApp::OnCmdLineParsed(pParser); |
| 307 | } |
| 308 | |
| 309 | bool Server::OnInit() |
| 310 | { |
| 311 | wxLog* logger = new wxLogStderr(); |
| 312 | wxLog::SetActiveTarget(logger); |
| 313 | |
| 314 | m_port = 3000; |
| 315 | |
| 316 | //send interesting things to console |
| 317 | if (!wxApp::OnInit()) |
| 318 | return false; |
| 319 | |
| 320 | //setup listening socket |
| 321 | wxIPV4address la; |
| 322 | la.Service(m_port); |
| 323 | m_listeningSocket = new wxSocketServer(la,wxSOCKET_NOWAIT|wxSOCKET_REUSEADDR); |
| 324 | m_listeningSocket->SetEventHandler(*this); |
| 325 | m_listeningSocket->SetNotify(wxSOCKET_CONNECTION_FLAG); |
| 326 | m_listeningSocket->Notify(true); |
| 327 | if (!m_listeningSocket->IsOk()) |
| 328 | { |
| 329 | wxLogError("Cannot bind listening socket"); |
| 330 | return false; |
| 331 | } |
| 332 | |
| 333 | m_threadWorkersCreated = 0; |
| 334 | m_threadWorkersDone = 0; |
| 335 | m_threadWorkersFailed = 0; |
| 336 | m_maxThreadWorkers = 0; |
| 337 | |
| 338 | m_eventWorkersCreated = 0; |
| 339 | m_eventWorkersDone = 0; |
| 340 | m_eventWorkersFailed = 0; |
| 341 | m_maxEventWorkers = 0; |
| 342 | |
| 343 | wxLogMessage("Server listening at port %u, waiting for connections", m_port); |
| 344 | return true; |
| 345 | } |
| 346 | |
| 347 | |
| 348 | int Server::OnExit() |
| 349 | { |
| 350 | for ( TList::compatibility_iterator it = m_threadWorkers.GetFirst(); |
| 351 | it; |
| 352 | it = it->GetNext() ) |
| 353 | { |
| 354 | it->GetData()->Wait(); |
| 355 | delete it->GetData(); |
| 356 | } |
| 357 | |
| 358 | for ( EList::compatibility_iterator it2 = m_eventWorkers.GetFirst(); |
| 359 | it2; |
| 360 | it2->GetNext() ) |
| 361 | { |
| 362 | delete it2->GetData(); |
| 363 | } |
| 364 | |
| 365 | m_threadWorkers.Clear(); |
| 366 | m_eventWorkers.Clear(); |
| 367 | m_listeningSocket->Destroy(); |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | void Server::OnSocketEvent(wxSocketEvent& pEvent) |
| 372 | { |
| 373 | switch(pEvent.GetSocketEvent()) |
| 374 | { |
| 375 | case wxSOCKET_INPUT: |
| 376 | wxLogError("Unexpected wxSOCKET_INPUT in wxSocketServer"); |
| 377 | break; |
| 378 | case wxSOCKET_OUTPUT: |
| 379 | wxLogError("Unexpected wxSOCKET_OUTPUT in wxSocketServer"); |
| 380 | break; |
| 381 | case wxSOCKET_CONNECTION: |
| 382 | { |
| 383 | wxSocketBase* sock = m_listeningSocket->Accept(); |
| 384 | wxIPV4address addr; |
| 385 | if (!sock->GetPeer(addr)) |
| 386 | { |
| 387 | wxLogError("Server: cannot get peer info"); |
| 388 | } else { |
| 389 | wxLogMessage("Got connection from %s:%d",addr.IPAddress().c_str(), addr.Service()); |
| 390 | } |
| 391 | bool createThread; |
| 392 | |
| 393 | if (m_workMode != MIXED) |
| 394 | createThread = m_workMode == THREADS; |
| 395 | else |
| 396 | createThread = (wxDateTime::Now().GetSecond())%2 == 0; |
| 397 | |
| 398 | if (createThread) |
| 399 | { |
| 400 | ThreadWorker* c = new ThreadWorker(sock); |
| 401 | if (c->Create() == wxTHREAD_NO_ERROR) |
| 402 | { |
| 403 | m_threadWorkers.Append(c); |
| 404 | if (m_threadWorkers.GetCount() > m_maxThreadWorkers) |
| 405 | m_maxThreadWorkers++; |
| 406 | m_threadWorkersCreated++; |
| 407 | c->Run(); |
| 408 | } |
| 409 | else |
| 410 | { |
| 411 | wxLogError("Server: cannot create next thread (current threads: %d", m_threadWorkers.size()); |
| 412 | }; |
| 413 | } |
| 414 | else |
| 415 | { |
| 416 | EventWorker* w = new EventWorker(sock); |
| 417 | m_eventWorkers.Append(w); |
| 418 | if (m_eventWorkers.GetCount() > m_maxEventWorkers) |
| 419 | m_maxEventWorkers++; |
| 420 | m_eventWorkersCreated++; |
| 421 | } |
| 422 | } |
| 423 | break; |
| 424 | case wxSOCKET_LOST: |
| 425 | wxLogError("Unexpected wxSOCKET_LOST in wxSocketServer"); |
| 426 | break; |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | void Server::OnWorkerEvent(WorkerEvent& pEvent) |
| 431 | { |
| 432 | //wxLogMessage("Got worker event"); |
| 433 | for(TList::compatibility_iterator it = m_threadWorkers.GetFirst(); it ; it = it->GetNext()) |
| 434 | { |
| 435 | if (it->GetData() == pEvent.m_sender) |
| 436 | { |
| 437 | wxLogVerbose("Deleting thread worker (%lu left)", |
| 438 | static_cast<unsigned long>( m_threadWorkers.GetCount() )); |
| 439 | it->GetData()->Wait(); |
| 440 | delete it->GetData(); |
| 441 | m_threadWorkers.DeleteNode(it); |
| 442 | if (!pEvent.m_workerFailed) |
| 443 | m_threadWorkersDone++; |
| 444 | else |
| 445 | m_threadWorkersFailed++; |
| 446 | break; |
| 447 | } |
| 448 | } |
| 449 | for(EList::compatibility_iterator it2 = m_eventWorkers.GetFirst(); it2 ; it2 = it2->GetNext()) |
| 450 | { |
| 451 | if (it2->GetData() == pEvent.m_sender) |
| 452 | { |
| 453 | wxLogVerbose("Deleting event worker (%lu left)", |
| 454 | static_cast<unsigned long>( m_eventWorkers.GetCount() )); |
| 455 | delete it2->GetData(); |
| 456 | m_eventWorkers.DeleteNode(it2); |
| 457 | if (!pEvent.m_workerFailed) |
| 458 | m_eventWorkersDone++; |
| 459 | else |
| 460 | m_eventWorkersFailed++; |
| 461 | break; |
| 462 | } |
| 463 | } |
| 464 | |
| 465 | if (m_eventWorkers.GetCount() == 0 && m_threadWorkers.GetCount() == 0) |
| 466 | { |
| 467 | mTimer.Start(1000,true); |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | void Server::OnTimerEvent(wxTimerEvent&) |
| 472 | { |
| 473 | DumpStatistics(); |
| 474 | } |
| 475 | |
| 476 | |
| 477 | BEGIN_EVENT_TABLE(Server,wxEvtHandler) |
| 478 | EVT_SOCKET(wxID_ANY,Server::OnSocketEvent) |
| 479 | EVT_WORKER(Server::OnWorkerEvent) |
| 480 | EVT_TIMER(wxID_ANY,Server::OnTimerEvent) |
| 481 | END_EVENT_TABLE() |
| 482 | |
| 483 | |
| 484 | ThreadWorker::ThreadWorker(wxSocketBase* pSocket) : wxThread(wxTHREAD_JOINABLE) |
| 485 | { |
| 486 | m_socket = pSocket; |
| 487 | //Notify() cannot be called in thread context. We have to detach from main loop |
| 488 | //before switching thread contexts. |
| 489 | m_socket->Notify(false); |
| 490 | m_socket->SetFlags(wxSOCKET_WAITALL|wxSOCKET_BLOCK); |
| 491 | pSocket->GetPeer(m_peer); |
| 492 | } |
| 493 | |
| 494 | wxThread::ExitCode ThreadWorker::Entry() |
| 495 | { |
| 496 | WorkerEvent e(this); |
| 497 | if (!m_socket->IsConnected()) |
| 498 | { |
| 499 | LogWorker("ThreadWorker: not connected",wxLOG_Error); |
| 500 | return 0; |
| 501 | } |
| 502 | int to_process = -1; |
| 503 | if (m_socket->IsConnected()) |
| 504 | { |
| 505 | unsigned char signature[2]; |
| 506 | LogWorker("ThreadWorker: reading for data"); |
| 507 | to_process = 2; |
| 508 | do |
| 509 | { |
| 510 | m_socket->Read(&signature,to_process); |
| 511 | if (m_socket->Error()) |
| 512 | { |
| 513 | LogWorker("ThreadWorker: Read error",wxLOG_Error); |
| 514 | wxGetApp().AddPendingEvent(e); |
| 515 | return 0; |
| 516 | } |
| 517 | to_process -= m_socket->LastCount(); |
| 518 | LogWorker(wxString::Format("to_process: %d",to_process)); |
| 519 | |
| 520 | } |
| 521 | while (!m_socket->Error() && to_process != 0); |
| 522 | |
| 523 | if (signature[0] == 0) |
| 524 | { |
| 525 | e.m_exit = true; |
| 526 | return 0; |
| 527 | } |
| 528 | |
| 529 | if (signature[0] == 0xCE) |
| 530 | { |
| 531 | LogWorker("This server does not support test2 from GUI client",wxLOG_Error); |
| 532 | e.m_workerFailed = true; |
| 533 | e.m_exit = true; |
| 534 | return 0; |
| 535 | } |
| 536 | int size = signature[1] * (signature[0] == 0xBE ? 1 : 1024); |
| 537 | char* buf = new char[size]; |
| 538 | LogWorker(wxString::Format("Message signature: chunks: %d, kilobytes: %d, size: %d (bytes)",signature[0],signature[1],size)); |
| 539 | |
| 540 | to_process = size; |
| 541 | LogWorker(wxString::Format("ThreadWorker: reading %d bytes of data",to_process)); |
| 542 | |
| 543 | do |
| 544 | { |
| 545 | m_socket->Read(buf,to_process); |
| 546 | if (m_socket->Error()) |
| 547 | { |
| 548 | LogWorker("ThreadWorker: Read error",wxLOG_Error); |
| 549 | wxGetApp().AddPendingEvent(e); |
| 550 | return 0; |
| 551 | } |
| 552 | to_process -= m_socket->LastCount(); |
| 553 | LogWorker(wxString::Format("ThreadWorker: %d bytes readed, %d todo",m_socket->LastCount(),to_process)); |
| 554 | |
| 555 | } |
| 556 | while(!m_socket->Error() && to_process != 0); |
| 557 | |
| 558 | to_process = size; |
| 559 | |
| 560 | do |
| 561 | { |
| 562 | m_socket->Write(buf,to_process); |
| 563 | if (m_socket->Error()) |
| 564 | { |
| 565 | LogWorker("ThreadWorker: Write error",wxLOG_Error); |
| 566 | break; |
| 567 | } |
| 568 | to_process -= m_socket->LastCount(); |
| 569 | LogWorker(wxString::Format("ThreadWorker: %d bytes written, %d todo",m_socket->LastCount(),to_process)); |
| 570 | } |
| 571 | while(!m_socket->Error() && to_process != 0); |
| 572 | } |
| 573 | |
| 574 | LogWorker("ThreadWorker: done"); |
| 575 | e.m_workerFailed = to_process != 0; |
| 576 | m_socket->Destroy(); |
| 577 | wxGetApp().AddPendingEvent(e); |
| 578 | return 0; |
| 579 | } |
| 580 | |
| 581 | EventWorker::EventWorker(wxSocketBase* pSock) |
| 582 | : m_socket(pSock), |
| 583 | m_inbuf(NULL), |
| 584 | m_infill(0), |
| 585 | m_outbuf(NULL), |
| 586 | m_outfill(0) |
| 587 | { |
| 588 | m_socket->SetNotify(wxSOCKET_LOST_FLAG|wxSOCKET_INPUT_FLAG|wxSOCKET_OUTPUT_FLAG); |
| 589 | m_socket->Notify(true); |
| 590 | m_socket->SetEventHandler(*this); |
| 591 | m_socket->SetFlags(wxSOCKET_NOWAIT); |
| 592 | m_socket->GetPeer(m_peer); |
| 593 | } |
| 594 | |
| 595 | EventWorker::~EventWorker() |
| 596 | { |
| 597 | m_socket->Destroy(); |
| 598 | delete [] m_inbuf; |
| 599 | delete [] m_outbuf; |
| 600 | } |
| 601 | |
| 602 | void |
| 603 | EventWorker::DoRead() |
| 604 | { |
| 605 | if (m_inbuf == NULL) |
| 606 | { |
| 607 | //read message header |
| 608 | do |
| 609 | { |
| 610 | m_socket->Read(m_signature + m_infill, 2 - m_infill); |
| 611 | if (m_socket->Error()) |
| 612 | { |
| 613 | if (m_socket->LastError() != wxSOCKET_WOULDBLOCK) |
| 614 | { |
| 615 | LogWorker(wxString::Format("Read error (%d): %s",m_socket->LastError(),GetSocketErrorMsg(m_socket->LastError())),wxLOG_Error); |
| 616 | m_socket->Close(); |
| 617 | } |
| 618 | } |
| 619 | else |
| 620 | { |
| 621 | m_infill += m_socket->LastCount(); |
| 622 | if (m_infill == 2) |
| 623 | { |
| 624 | unsigned char chunks = m_signature[1]; |
| 625 | unsigned char type = m_signature[0]; |
| 626 | if (type == 0xCE) |
| 627 | { |
| 628 | LogWorker("This server does not support test2 from GUI client",wxLOG_Error); |
| 629 | m_written = -1; //wxSOCKET_LOST will interpret this as failure |
| 630 | m_socket->Close(); |
| 631 | } |
| 632 | else if (type == 0xBE || type == 0xDE) |
| 633 | { |
| 634 | m_size = chunks * (type == 0xBE ? 1 : 1024); |
| 635 | m_inbuf = new char[m_size]; |
| 636 | m_outbuf = new char[m_size]; |
| 637 | m_infill = 0; |
| 638 | m_outfill = 0; |
| 639 | m_written = 0; |
| 640 | LogWorker(wxString::Format("Message signature: len: %d, type: %s, size: %d (bytes)",chunks,type == 0xBE ? "b" : "kB",m_size)); |
| 641 | break; |
| 642 | } |
| 643 | else |
| 644 | { |
| 645 | LogWorker(wxString::Format("Unknown test type %x",type)); |
| 646 | m_socket->Close(); |
| 647 | } |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | while(!m_socket->Error() && (2 - m_infill != 0)); |
| 652 | } |
| 653 | |
| 654 | if (m_inbuf == NULL) |
| 655 | return; |
| 656 | //read message data |
| 657 | do |
| 658 | { |
| 659 | if (m_size == m_infill) |
| 660 | { |
| 661 | m_signature[0] = m_signature[1] = 0x0; |
| 662 | wxDELETEA(m_inbuf); |
| 663 | m_infill = 0; |
| 664 | return; |
| 665 | } |
| 666 | m_socket->Read(m_inbuf + m_infill,m_size - m_infill); |
| 667 | if (m_socket->Error()) |
| 668 | { |
| 669 | if (m_socket->LastError() != wxSOCKET_WOULDBLOCK) |
| 670 | { |
| 671 | LogWorker(wxString::Format("Read error (%d): %s", |
| 672 | m_socket->LastError(), |
| 673 | GetSocketErrorMsg(m_socket->LastError())), |
| 674 | wxLOG_Error); |
| 675 | |
| 676 | m_socket->Close(); |
| 677 | } |
| 678 | } |
| 679 | else |
| 680 | { |
| 681 | memcpy(m_outbuf+m_outfill,m_inbuf+m_infill,m_socket->LastCount()); |
| 682 | m_infill += m_socket->LastCount(); |
| 683 | m_outfill += m_socket->LastCount(); |
| 684 | DoWrite(); |
| 685 | } |
| 686 | } |
| 687 | while(!m_socket->Error()); |
| 688 | }; |
| 689 | |
| 690 | void EventWorker::OnSocketEvent(wxSocketEvent& pEvent) |
| 691 | { |
| 692 | switch(pEvent.GetSocketEvent()) |
| 693 | { |
| 694 | case wxSOCKET_INPUT: |
| 695 | DoRead(); |
| 696 | break; |
| 697 | |
| 698 | case wxSOCKET_OUTPUT: |
| 699 | if ( m_outbuf ) |
| 700 | DoWrite(); |
| 701 | break; |
| 702 | |
| 703 | case wxSOCKET_CONNECTION: |
| 704 | LogWorker("Unexpected wxSOCKET_CONNECTION in EventWorker", wxLOG_Error); |
| 705 | break; |
| 706 | |
| 707 | case wxSOCKET_LOST: |
| 708 | { |
| 709 | LogWorker("Connection lost"); |
| 710 | WorkerEvent e(this); |
| 711 | e.m_workerFailed = m_written != m_size; |
| 712 | wxGetApp().AddPendingEvent(e); |
| 713 | } |
| 714 | break; |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | void EventWorker::DoWrite() |
| 719 | { |
| 720 | do |
| 721 | { |
| 722 | if (m_written == m_size) |
| 723 | { |
| 724 | wxDELETEA(m_outbuf); |
| 725 | m_outfill = 0; |
| 726 | LogWorker( "All data written"); |
| 727 | return; |
| 728 | } |
| 729 | if (m_outfill - m_written == 0) |
| 730 | { |
| 731 | return; |
| 732 | } |
| 733 | m_socket->Write(m_outbuf + m_written,m_outfill - m_written); |
| 734 | if (m_socket->Error()) |
| 735 | { |
| 736 | if (m_socket->LastError() != wxSOCKET_WOULDBLOCK) |
| 737 | { |
| 738 | LogWorker( |
| 739 | wxString::Format("Write error (%d): %s", |
| 740 | m_socket->LastError(), |
| 741 | GetSocketErrorMsg(m_socket->LastError()) |
| 742 | ) |
| 743 | ,wxLOG_Error |
| 744 | ); |
| 745 | m_socket->Close(); |
| 746 | } |
| 747 | else |
| 748 | { |
| 749 | LogWorker("Write would block, waiting for OUTPUT event"); |
| 750 | } |
| 751 | } |
| 752 | else |
| 753 | { |
| 754 | memmove(m_outbuf,m_outbuf+m_socket->LastCount(),m_outfill-m_socket->LastCount()); |
| 755 | m_written += m_socket->LastCount(); |
| 756 | } |
| 757 | LogWorker(wxString::Format("Written %d of %d bytes, todo %d", |
| 758 | m_socket->LastCount(),m_size,m_size - m_written)); |
| 759 | } |
| 760 | while (!m_socket->Error()); |
| 761 | } |
| 762 | |
| 763 | BEGIN_EVENT_TABLE(EventWorker,wxEvtHandler) |
| 764 | EVT_SOCKET(wxID_ANY,EventWorker::OnSocketEvent) |
| 765 | END_EVENT_TABLE() |