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Overview
Comment: | Make windows sockets implementation thread-safe by making the
window used to handle socket events thread-specific (one for each
thread).
Added test to socket.test to check for this (should work on all platforms). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | core-8-1-branch-old |
Files: | files | file ages | folders |
SHA1: |
74e05afb9916b0f08a17045e57a45c67 |
User & Date: | redman 1999-03-24 23:53:16.000 |
Context
1999-03-24
| ||
23:53 | - added code to print the name of each test file that created files and did not clean them up (the... check-in: 406483ed83 user: hershey tags: core-8-1-branch-old | |
23:53 | Make windows sockets implementation thread-safe by making the window used to handle socket events th... check-in: 74e05afb99 user: redman tags: core-8-1-branch-old | |
19:26 | -fixed quoting error in README examples -added safeFetch to list of exported tcltest procs check-in: 27679ee073 user: hershey tags: core-8-1-branch-old | |
Changes
Changes to ChangeLog.
1 2 3 4 5 6 7 | 1999-03-23 <[email protected]> * tools/tcl.wse: Fixed file association to look in the right place for the wish icon. [Bug: 1544] * tests/winNotify.test: * tests/ioCmd.test: | > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 1999-03-24 <[email protected]> * win/tclWinSock.c: Make sockets thread-safe on Windows. The current implementation uses windows to handle events on the socket, one for each thread (thread local storage). Previously, there was only one window shared between threads, which didn't work. [Bug: 1326] 1999-03-23 <[email protected]> * tools/tcl.wse: Fixed file association to look in the right place for the wish icon. [Bug: 1544] * tests/winNotify.test: * tests/ioCmd.test: |
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Changes to tests/socket.test.
1 2 3 4 5 6 7 8 9 10 11 12 | # Commands tested in this file: socket. # # This file contains a collection of tests for one or more of the Tcl # built-in commands. Sourcing this file into Tcl runs the tests and # generates output for errors. No output means no errors were found. # # Copyright (c) 1994-1996 Sun Microsystems, Inc. # Copyright (c) 1998-1999 by Scriptics Corporation. # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | # Commands tested in this file: socket. # # This file contains a collection of tests for one or more of the Tcl # built-in commands. Sourcing this file into Tcl runs the tests and # generates output for errors. No output means no errors were found. # # Copyright (c) 1994-1996 Sun Microsystems, Inc. # Copyright (c) 1998-1999 by Scriptics Corporation. # # See the file "license.terms" for information on usage and redistribution # of this file, and for a DISCLAIMER OF ALL WARRANTIES. # # RCS: @(#) $Id: socket.test,v 1.1.2.9 1999/03/24 23:53:17 redman Exp $ # Running socket tests with a remote server: # ------------------------------------------ # # Some tests in socket.test depend on the existence of a remote server to # which they connect. The remote server must be an instance of tcltest and it # must run the script found in the file "remote.tcl" in this directory. You |
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61 62 63 64 65 66 67 68 69 70 71 72 73 74 | # server (via exec) on platforms that support this, on the local host, # listening at port 2048. If all fails, a message is printed and the tests # using the remote server are not performed. if {[lsearch [namespace children] ::tcltest] == -1} { source [file join [pwd] [file dirname [info script]] defs.tcl] } # # If remoteServerIP or remoteServerPort are not set, check in the # environment variables for externally set values. # if {![info exists remoteServerIP]} { | > > > > > | 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | # server (via exec) on platforms that support this, on the local host, # listening at port 2048. If all fails, a message is printed and the tests # using the remote server are not performed. if {[lsearch [namespace children] ::tcltest] == -1} { source [file join [pwd] [file dirname [info script]] defs.tcl] } # Some tests require the testthread command set ::tcltest::testConfig(testthread) \ [expr {[info commands testthread] != {}}] # # If remoteServerIP or remoteServerPort are not set, check in the # environment variables for externally set values. # if {![info exists remoteServerIP]} { |
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1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 | vwait x removeFile script1 removeFile script2 set x } {accepted socket was not inherited} # cleanup if {[string match sock* $commandSocket] == 1} { puts $commandSocket exit flush $commandSocket } catch {close $commandSocket} | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 | vwait x removeFile script1 removeFile script2 set x } {accepted socket was not inherited} test socket-13.1 {Testing use of shared socket between two threads} \ {socket testthread} { set mainthread [testthread names] proc ThreadReap {} { global mainthread testthread errorproc ThreadNullError while {[llength [testthread names]] > 1} { foreach tid [testthread names] { if {$tid != $mainthread} { catch {testthread send -async $tid {testthread exit}} update } } } testthread errorproc ThreadError return [llength [testthread names]] } removeFile script set f [open script w] puts $f { set f [socket -server accept 2828] proc accept {s a p} { fileevent $s readable [list echo $s] fconfigure $s -buffering line } proc echo {s} { global i set l [gets $s] if {[eof $s]} { global x close $s set x done } else { incr i puts $s $l } } set i 0 puts ready set timer [after 20000 "set x done"] vwait x after cancel $timer close $f puts "done $i" # thread cleans itself up. testhread exit } close $f # create a thread set serverthread [testthread create { source script } ] update set s [socket 127.0.0.1 2828] fconfigure $s -buffering line catch { puts $s "hello" gets $s result } close $s ThreadReap set result } hello # cleanup if {[string match sock* $commandSocket] == 1} { puts $commandSocket exit flush $commandSocket } catch {close $commandSocket} |
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Changes to win/tclWinSock.c.
1 2 3 4 5 6 7 8 9 10 | /* * tclWinSock.c -- * * This file contains Windows-specific socket related code. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | /* * tclWinSock.c -- * * This file contains Windows-specific socket related code. * * Copyright (c) 1995-1997 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tclWinSock.c,v 1.1.2.7 1999/03/24 23:53:18 redman Exp $ */ #include "tclWinInt.h" /* * The following variable is used to tell whether this module has been * initialized. |
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30 31 32 33 34 35 36 | * points used by Tcl. It is initialized by InitSockets. Since we * dynamically load Winsock.dll on demand, we must use this function table * to refer to functions in the socket API. */ static struct { HINSTANCE hInstance; /* Handle to WinSock library. */ | < | 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | * points used by Tcl. It is initialized by InitSockets. Since we * dynamically load Winsock.dll on demand, we must use this function table * to refer to functions in the socket API. */ static struct { HINSTANCE hInstance; /* Handle to WinSock library. */ SOCKET (PASCAL FAR *accept)(SOCKET s, struct sockaddr FAR *addr, int FAR *addrlen); int (PASCAL FAR *bind)(SOCKET s, const struct sockaddr FAR *addr, int namelen); int (PASCAL FAR *closesocket)(SOCKET s); int (PASCAL FAR *connect)(SOCKET s, const struct sockaddr FAR *name, int namelen); |
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143 144 145 146 147 148 149 150 151 152 153 154 155 156 | * for this socket */ typedef struct ThreadSpecificData { /* * Every open socket has an entry on the following list. */ SocketInfo *socketList; } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; /* * Static functions defined in this file. | > | 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | * for this socket */ typedef struct ThreadSpecificData { /* * Every open socket has an entry on the following list. */ HWND hwnd; /* Handle to window for socket messages. */ SocketInfo *socketList; } ThreadSpecificData; static Tcl_ThreadDataKey dataKey; /* * Static functions defined in this file. |
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241 242 243 244 245 246 247 | */ static void InitSockets() { WSADATA wsaData; OSVERSIONINFO info; | | | 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 | */ static void InitSockets() { WSADATA wsaData; OSVERSIONINFO info; static WNDCLASSA class; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); if (! initialized) { initialized = 1; Tcl_CreateExitHandler(SocketExitHandler, (ClientData) NULL); |
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384 385 386 387 388 389 390 | (winSock.WSACleanup == NULL) || (winSock.WSAGetLastError == NULL) || (winSock.WSAAsyncSelect == NULL)) { goto unloadLibrary; } /* | < < < < < < < < < < < < | < < < < < < > > > > > > > > > > > > > > > > > > > > | 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 | (winSock.WSACleanup == NULL) || (winSock.WSAGetLastError == NULL) || (winSock.WSAAsyncSelect == NULL)) { goto unloadLibrary; } /* * Create the async notification window with a new class. We * must create a new class to avoid a Windows 95 bug that causes * us to get the wrong message number for socket events if the * message window is a subclass of a static control. */ class.style = 0; class.cbClsExtra = 0; class.cbWndExtra = 0; class.hInstance = TclWinGetTclInstance(); class.hbrBackground = NULL; class.lpszMenuName = NULL; class.lpszClassName = "TclSocket"; class.lpfnWndProc = SocketProc; class.hIcon = NULL; class.hCursor = NULL; if (RegisterClassA(&class)) { TclWinConvertError(GetLastError()); (*winSock.WSACleanup)(); goto unloadLibrary; } /* * Initialize the winsock library and check the version number. */ if ((*winSock.WSAStartup)(WSA_VERSION_REQD, &wsaData) != 0) { goto unloadLibrary; } if (wsaData.wVersion != WSA_VERSION_REQD) { (*winSock.WSACleanup)(); goto unloadLibrary; } } /* * Check for per-thread initialization. */ if (tsdPtr == NULL) { tsdPtr = TCL_TSD_INIT(&dataKey); tsdPtr->socketList = NULL; tsdPtr->hwnd = CreateWindowA("TclSocket", "TclSocket", WS_TILED, 0, 0, 0, 0, NULL, NULL, class.hInstance, NULL); if (tsdPtr->hwnd == NULL) { goto unloadLibrary; } Tcl_CreateEventSource(SocketSetupProc, SocketCheckProc, NULL); Tcl_CreateThreadExitHandler(SocketThreadExitHandler, NULL); } return; unloadLibrary: FreeLibrary(winSock.hInstance); |
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496 497 498 499 500 501 502 | /* ARGSUSED */ static void SocketExitHandler(clientData) ClientData clientData; /* Not used. */ { Tcl_MutexLock(&socketMutex); if (winSock.hInstance) { | < | 498 499 500 501 502 503 504 505 506 507 508 509 510 511 | /* ARGSUSED */ static void SocketExitHandler(clientData) ClientData clientData; /* Not used. */ { Tcl_MutexLock(&socketMutex); if (winSock.hInstance) { UnregisterClassA("TclSocket", TclWinGetTclInstance()); (*winSock.WSACleanup)(); FreeLibrary(winSock.hInstance); winSock.hInstance = NULL; } initialized = 0; hostnameInitialized = 0; |
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529 530 531 532 533 534 535 536 537 538 539 540 541 542 | */ /* ARGSUSED */ static void SocketThreadExitHandler(clientData) ClientData clientData; /* Not used. */ { Tcl_DeleteEventSource(SocketSetupProc, SocketCheckProc, NULL); } /* *---------------------------------------------------------------------- * * TclpHasSockets -- | > > > > > | 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 | */ /* ARGSUSED */ static void SocketThreadExitHandler(clientData) ClientData clientData; /* Not used. */ { ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); DestroyWindow(tsdPtr->hwnd); Tcl_DeleteEventSource(SocketSetupProc, SocketCheckProc, NULL); } /* *---------------------------------------------------------------------- * * TclpHasSockets -- |
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762 763 764 765 766 767 768 | * We must check to see if data is really available, since someone * could have consumed the data in the meantime. Turn off async * notification so select will work correctly. If the socket is * still readable, notify the channel driver, otherwise reset the * async select handler and keep waiting. */ | | | | 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 | * We must check to see if data is really available, since someone * could have consumed the data in the meantime. Turn off async * notification so select will work correctly. If the socket is * still readable, notify the channel driver, otherwise reset the * async select handler and keep waiting. */ (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, 0, 0); FD_ZERO(&readFds); FD_SET(infoPtr->socket, &readFds); timeout.tv_usec = 0; timeout.tv_sec = 0; if ((*winSock.select)(0, &readFds, NULL, NULL, &timeout) != 0) { mask |= TCL_READABLE; } else { (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); infoPtr->readyEvents &= ~(FD_READ); } } if (events & (FD_WRITE | FD_CONNECT)) { mask |= TCL_WRITABLE; } |
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960 961 962 963 964 965 966 967 968 969 970 971 972 973 | u_long flag = 1; /* Indicates nonblocking mode. */ int asyncConnect = 0; /* Will be 1 if async connect is * in progress. */ struct sockaddr_in sockaddr; /* Socket address */ struct sockaddr_in mysockaddr; /* Socket address for client */ SOCKET sock; SocketInfo *infoPtr; /* The returned value. */ /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to * use sockets. */ | > > | 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 | u_long flag = 1; /* Indicates nonblocking mode. */ int asyncConnect = 0; /* Will be 1 if async connect is * in progress. */ struct sockaddr_in sockaddr; /* Socket address */ struct sockaddr_in mysockaddr; /* Socket address for client */ SOCKET sock; SocketInfo *infoPtr; /* The returned value. */ ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to * use sockets. */ |
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1103 1104 1105 1106 1107 1108 1109 | /* * Register for interest in events in the select mask. Note that this * automatically places the socket into non-blocking mode. */ (*winSock.ioctlsocket)(sock, FIONBIO, &flag); | | | 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 | /* * Register for interest in events in the select mask. Note that this * automatically places the socket into non-blocking mode. */ (*winSock.ioctlsocket)(sock, FIONBIO, &flag); (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); return infoPtr; error: TclWinConvertWSAError((*winSock.WSAGetLastError)()); if (interp != NULL) { |
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1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 | SocketInfo *infoPtr; /* Information about this socket. */ int events; /* Events to look for. */ int *errorCodePtr; /* Where to store errors? */ { MSG msg; int result = 1; int oldMode; /* * Be sure to disable event servicing so we are truly modal. */ oldMode = Tcl_SetServiceMode(TCL_SERVICE_NONE); /* * Reset WSAAsyncSelect so we have a fresh set of events pending. */ | > > | | | | 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 | SocketInfo *infoPtr; /* Information about this socket. */ int events; /* Events to look for. */ int *errorCodePtr; /* Where to store errors? */ { MSG msg; int result = 1; int oldMode; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); /* * Be sure to disable event servicing so we are truly modal. */ oldMode = Tcl_SetServiceMode(TCL_SERVICE_NONE); /* * Reset WSAAsyncSelect so we have a fresh set of events pending. */ (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, 0, 0); (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); while (1) { /* * Process all outstanding messages on the socket window. */ while (PeekMessage(&msg, tsdPtr->hwnd, 0, 0, PM_REMOVE)) { DispatchMessage(&msg); } if (infoPtr->lastError) { *errorCodePtr = infoPtr->lastError; result = 0; break; |
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1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 | Tcl_Channel Tcl_MakeTcpClientChannel(sock) ClientData sock; /* The socket to wrap up into a channel. */ { SocketInfo *infoPtr; char channelName[16 + TCL_INTEGER_SPACE]; if (TclpHasSockets(NULL) != TCL_OK) { return NULL; } /* * Set kernel space buffering and non-blocking. */ TclSockMinimumBuffers((SOCKET) sock, TCP_BUFFER_SIZE); infoPtr = NewSocketInfo((SOCKET) sock); /* * Start watching for read/write events on the socket. */ infoPtr->selectEvents = FD_READ | FD_CLOSE | FD_WRITE; | > > | | 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 | Tcl_Channel Tcl_MakeTcpClientChannel(sock) ClientData sock; /* The socket to wrap up into a channel. */ { SocketInfo *infoPtr; char channelName[16 + TCL_INTEGER_SPACE]; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); if (TclpHasSockets(NULL) != TCL_OK) { return NULL; } /* * Set kernel space buffering and non-blocking. */ TclSockMinimumBuffers((SOCKET) sock, TCP_BUFFER_SIZE); infoPtr = NewSocketInfo((SOCKET) sock); /* * Start watching for read/write events on the socket. */ infoPtr->selectEvents = FD_READ | FD_CLOSE | FD_WRITE; (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); wsprintfA(channelName, "sock%d", infoPtr->socket); infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, (ClientData) infoPtr, (TCL_READABLE | TCL_WRITABLE)); Tcl_SetChannelOption(NULL, infoPtr->channel, "-translation", "auto crlf"); return infoPtr->channel; |
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1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 | SocketInfo *infoPtr; /* Socket to accept. */ { SOCKET newSocket; SocketInfo *newInfoPtr; struct sockaddr_in addr; int len; char channelName[16 + TCL_INTEGER_SPACE]; /* * Accept the incoming connection request. */ len = sizeof(struct sockaddr_in); newSocket = (*winSock.accept)(infoPtr->socket, (struct sockaddr *)&addr, | > > | 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 | SocketInfo *infoPtr; /* Socket to accept. */ { SOCKET newSocket; SocketInfo *newInfoPtr; struct sockaddr_in addr; int len; char channelName[16 + TCL_INTEGER_SPACE]; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); /* * Accept the incoming connection request. */ len = sizeof(struct sockaddr_in); newSocket = (*winSock.accept)(infoPtr->socket, (struct sockaddr *)&addr, |
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1505 1506 1507 1508 1509 1510 1511 | newInfoPtr = NewSocketInfo(newSocket); /* * Select on read/write events and create the channel. */ newInfoPtr->selectEvents = (FD_READ | FD_WRITE | FD_CLOSE); | | | 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 | newInfoPtr = NewSocketInfo(newSocket); /* * Select on read/write events and create the channel. */ newInfoPtr->selectEvents = (FD_READ | FD_WRITE | FD_CLOSE); (void) (*winSock.WSAAsyncSelect)(newInfoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, newInfoPtr->selectEvents); wsprintfA(channelName, "sock%d", newInfoPtr->socket); newInfoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, (ClientData) newInfoPtr, (TCL_READABLE | TCL_WRITABLE)); if (Tcl_SetChannelOption(NULL, newInfoPtr->channel, "-translation", "auto crlf") == TCL_ERROR) { |
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1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 | char *buf; /* Where to store data. */ int toRead; /* Maximum number of bytes to read. */ int *errorCodePtr; /* Where to store error codes. */ { SocketInfo *infoPtr = (SocketInfo *) instanceData; int bytesRead; int error; *errorCodePtr = 0; /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to | > > | 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 | char *buf; /* Where to store data. */ int toRead; /* Maximum number of bytes to read. */ int *errorCodePtr; /* Where to store error codes. */ { SocketInfo *infoPtr = (SocketInfo *) instanceData; int bytesRead; int error; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); *errorCodePtr = 0; /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to |
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1602 1603 1604 1605 1606 1607 1608 | * Note that we clear the FD_READ bit because read events are level * triggered so a new event will be generated if there is still data * available to be read. We have to simulate blocking behavior here * since we are always using non-blocking sockets. */ while (1) { | | | 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 | * Note that we clear the FD_READ bit because read events are level * triggered so a new event will be generated if there is still data * available to be read. We have to simulate blocking behavior here * since we are always using non-blocking sockets. */ while (1) { (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, 0, 0); bytesRead = (*winSock.recv)(infoPtr->socket, buf, toRead, 0); infoPtr->readyEvents &= ~(FD_READ); /* * Check for end-of-file condition or successful read. */ |
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1652 1653 1654 1655 1656 1657 1658 | if (!WaitForSocketEvent(infoPtr, FD_READ|FD_CLOSE, errorCodePtr)) { bytesRead = -1; break; } } | | | 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 | if (!WaitForSocketEvent(infoPtr, FD_READ|FD_CLOSE, errorCodePtr)) { bytesRead = -1; break; } } (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); return bytesRead; } /* *---------------------------------------------------------------------- * |
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1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 | char *buf; /* Where to get data. */ int toWrite; /* Maximum number of bytes to write. */ int *errorCodePtr; /* Where to store error codes. */ { SocketInfo *infoPtr = (SocketInfo *) instanceData; int bytesWritten; int error; *errorCodePtr = 0; /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to | > > | 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 | char *buf; /* Where to get data. */ int toWrite; /* Maximum number of bytes to write. */ int *errorCodePtr; /* Where to store error codes. */ { SocketInfo *infoPtr = (SocketInfo *) instanceData; int bytesWritten; int error; ThreadSpecificData *tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); *errorCodePtr = 0; /* * Check that WinSock is initialized; do not call it if not, to * prevent system crashes. This can happen at exit time if the exit * handler for WinSock ran before other exit handlers that want to |
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1709 1710 1711 1712 1713 1714 1715 | if ((infoPtr->flags & SOCKET_ASYNC_CONNECT) && ! WaitForSocketEvent(infoPtr, FD_CONNECT, errorCodePtr)) { return -1; } while (1) { | | | 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 | if ((infoPtr->flags & SOCKET_ASYNC_CONNECT) && ! WaitForSocketEvent(infoPtr, FD_CONNECT, errorCodePtr)) { return -1; } while (1) { (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, 0, 0); bytesWritten = (*winSock.send)(infoPtr->socket, buf, toWrite, 0); if (bytesWritten != SOCKET_ERROR) { /* * Since Windows won't generate a new write event until we hit * an overflow condition, we need to force the event loop to * poll until the condition changes. |
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1759 1760 1761 1762 1763 1764 1765 | if (!WaitForSocketEvent(infoPtr, FD_WRITE|FD_CLOSE, errorCodePtr)) { bytesWritten = -1; break; } } | | | 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 | if (!WaitForSocketEvent(infoPtr, FD_WRITE|FD_CLOSE, errorCodePtr)) { bytesWritten = -1; break; } } (void) (*winSock.WSAAsyncSelect)(infoPtr->socket, tsdPtr->hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); return bytesWritten; } /* *---------------------------------------------------------------------- * |
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