Annotation of Amaya/amaya/AHTBridge.c, revision 1.85
1.9 cvs 1: /*
2: *
1.84 vatton 3: * (c) COPYRIGHT INRIA and W3C, 1996-2003
1.9 cvs 4: * Please first read the full copyright statement in file COPYRIGHT.
5: *
6: */
1.75 cvs 7:
1.14 cvs 8: /*
9: * AHTBridge.c : This module implements the callback setup and
10: * handlers between the Xt, libwww, and Amaya procedures. It's responsible
11: * for assigning, modifying, and supressing Xt events to the active
12: * requests.
13: *
14: * Author: J Kahan
1.67 cvs 15: * J. K./R. Guetari. Windows NT/95 routines
1.79 cvs 16: * J. K./S. Gully GTK routines
1.14 cvs 17: *
18: */
1.68 cvs 19: #ifdef _GTK
1.85 ! gully 20: #include <glib.h>
1.68 cvs 21: #endif /* _GTK */
22:
1.16 cvs 23: #define THOT_EXPORT extern
1.4 cvs 24: #include "amaya.h"
1.10 cvs 25: #include "AHTBridge_f.h"
26: #include "AHTFWrite_f.h"
27: #include "query_f.h"
28: #include "answer_f.h"
1.64 cvs 29: #include "HTEvtLst.h"
1.4 cvs 30:
1.58 cvs 31: #if 0
32: #define DEBUG_LIBWWW
33: #define THD_TRACE 1
34: #endif
35:
1.85 ! gully 36: #ifdef _MOTIF
! 37: /* Amaya's X appcontext */
! 38: extern ThotAppContext app_cont;
! 39: #endif /* #ifdef _MOTIF */
! 40:
! 41: #if defined(_MOTIF) || defined(_GTK)
! 42: /* Private functions */
! 43: static void RequestRegisterReadXtevent (SOCKET);
! 44: static void RequestKillReadXtevent (SOCKET);
! 45: static void RequestRegisterWriteXtevent ( SOCKET);
! 46: static void RequestKillWriteXtevent (SOCKET);
! 47: static void RequestRegisterExceptXtevent ( SOCKET);
! 48: static void RequestKillExceptXtevent (SOCKET);
! 49: #endif /* #if defined(_MOTIF) || defined(_GTK) */
1.24 cvs 50:
1.32 cvs 51: /* Private variables */
1.4 cvs 52:
53: /*
1.58 cvs 54: * this set of HTEventType map our WinSock "socket event HTEventType" into
1.4 cvs 55: * our read and write sets. Note that under the canonical Unix model,
56: * a non-blocking socket passed to an accept() call will appear as readable,
57: * whilst a non-blocking call to connect() will appear as writeable. In add.
58: * if the connection has been closed, the socket will appear readable under
59: * BSD Unix semantics
60: */
1.32 cvs 61:
1.58 cvs 62: static const HTEventType ReadBits = HTEvent_READ | HTEvent_ACCEPT | HTEvent_CLOSE;
63: static const HTEventType WriteBits = HTEvent_WRITE | HTEvent_CONNECT;
64: static const HTEventType ExceptBits = HTEvent_OOB;
65:
1.85 ! gully 66: #ifdef _MOTIF
! 67: typedef struct sStatus {
! 68: XtInputId read; /* the different Xt Id's */
! 69: XtInputId write;
! 70: XtInputId except;
! 71: } SocketStatus;
! 72: #endif /*! #ifdef _MOTIF */
1.79 cvs 73:
74: #ifdef _GTK
1.85 ! gully 75: typedef struct sStatus {
! 76: gint read; /* the different GTK Id's */
! 77: gint write;
! 78: gint except;
! 79: } SocketStatus;
1.79 cvs 80: #endif /* _GTK */
1.4 cvs 81:
1.85 ! gully 82: #ifdef _NOGUI
! 83: typedef struct sStatus {
! 84: int read;
! 85: int write;
! 86: int except;
! 87: } SocketStatus;
! 88: #endif /* #ifdef _NOGUI */
! 89:
1.38 cvs 90: #define SOCK_TABLE_SIZE 67
91: #define HASH(s) ((s) % SOCK_TABLE_SIZE)
1.58 cvs 92: static SocketStatus persSockets[SOCK_TABLE_SIZE];
1.4 cvs 93:
1.10 cvs 94: /*--------------------------------------------------------------------
95: AHTCallback_bridge
1.11 cvs 96: this function acts as a bridge between Xt and libwww. From the Xt
97: point of view, this function is the callback handler whenever there's
98: any activity on the sockets associated with the active requests. From
99: the libwww point of view, this is the function that takes the initiative
100: to invoke the callback function associated with an active request,
101: whenever there's an activity in the socket associated to it.
102: In this latter aspect, this function is similar to the library's
103: own __DoCallback() function.
104: Upon activation, the function looks up the request associated with the
105: active socket and then looks up the cbf associated with that request.
106: Upon completion of the execution of the request's cbf, it verifies
107: the state of the request and, if it's an asynchronous request, deletes
108: the memory allocated to it.
1.10 cvs 109: -------------------------------------------------------------------*/
1.85 ! gully 110: #ifdef _MOTIF
1.80 kahan 111: void *AHTCallback_bridge (caddr_t cd, int *s, XtInputId * id)
1.4 cvs 112: {
1.11 cvs 113: int status; /* the status result of the libwwww call */
1.58 cvs 114: HTEventType type = HTEvent_ALL;
1.38 cvs 115: int v;
1.40 cvs 116: int socket = *s;
1.58 cvs 117: ms_t now = HTGetTimeInMillis();
118:
119: v = HASH (socket);
1.4 cvs 120:
1.58 cvs 121: /* convert the FD into an HTEventType which will allow us to find the
122: request associated with the socket */
1.47 cvs 123:
1.58 cvs 124: /* I could send some other data here, like the event itself, right */
125: switch ((XtInputId) cd)
1.47 cvs 126: {
1.58 cvs 127: case XtInputReadMask:
128: type = HTEvent_READ;
129: break;
130: case XtInputWriteMask:
131: type = HTEvent_WRITE;
132: break;
133: case XtInputExceptMask:
134: type = HTEvent_OOB;
135: break;
136: default:
137: type = HTEvent_ALL;
138: break;
139: } /* switch */
1.47 cvs 140:
1.32 cvs 141: /* Invokes the callback associated to the requests */
142:
1.66 cvs 143: /** CanDoStop_set (FALSE); **/
1.58 cvs 144: if ((status = HTEventList_dispatch (socket, type, now)) != HT_OK)
145: {
1.36 cvs 146: #ifdef DEBUG_LIBWWW
1.58 cvs 147: HTTrace ("Callback.... returned a value != HT_OK");
1.36 cvs 148: #endif
1.58 cvs 149: }
1.41 cvs 150:
1.66 cvs 151: /*** CanDoStop_set (TRUE); **/
1.38 cvs 152:
1.7 cvs 153: return (0);
1.4 cvs 154: }
1.85 ! gully 155: #endif /* _MOTIF */
! 156:
! 157: #ifdef _GTK
1.79 cvs 158: static void AHTCallback_bridgeGTK (gpointer data, gint source, GdkInputCondition condition)
159: {
160: int status; /* the status result of the libwwww call */
161: HTEventType type = HTEvent_ALL;
162: int v;
163: int socket;
164: ms_t now = HTGetTimeInMillis();
165:
166: socket = (SOCKET) data;
167: v = HASH (socket);
168:
169: /* convert the FD into an HTEventType which will allow us to find the
170: request associated with the socket */
171:
172: /* I could send some other data here, like the event itself, right */
173: switch (condition)
174: {
175: case GDK_INPUT_READ:
176: type = HTEvent_READ;
177: break;
178: case GDK_INPUT_WRITE:
179: type = HTEvent_WRITE;
180: break;
181: case GDK_INPUT_EXCEPTION:
182: type = HTEvent_OOB;
183: break;
184: default:
185: type = HTEvent_ALL;
186: break;
187: } /* switch */
188:
189: /* Invokes the callback associated to the requests */
190:
191: /** CanDoStop_set (FALSE); **/
192: if ((status = HTEventList_dispatch (socket, type, now)) != HT_OK)
193: {
194: #ifdef DEBUG_LIBWWW
195: HTTrace ("Callback.... returned a value != HT_OK");
196: #endif
197: }
198: /*** CanDoStop_set (TRUE); **/
199: }
1.85 ! gully 200: #endif /* _GTK */
1.41 cvs 201:
202: /*--------------------------------------------------------------------
203: ProcessTerminateRequest
204: This function is called whenever a request has ended. If the requested
205: ended normally, the function will call any callback associated to the
206: request. Otherwise, it will just mark the request as over.
207: -------------------------------------------------------------------*/
1.82 vatton 208: void ProcessTerminateRequest (HTRequest *request, HTResponse *response,
209: void *param, int status)
1.41 cvs 210: {
1.58 cvs 211: AHTReqContext *me = HTRequest_context (request);
1.56 cvs 212:
1.58 cvs 213: /* choose a correct treatment in function of the request's
1.41 cvs 214: being associated with an error, with an interruption, or with a
215: succesful completion */
1.64 cvs 216:
217: #ifdef DEBUG_LIBWWW
218: if (THD_TRACE)
1.82 vatton 219: fprintf (stderr,"ProcessTerminateRequest: processing req %p, url %s,\
220: status %d\n", me, me->urlName, me->reqStatus);
1.64 cvs 221: #endif /* DEBUG_LIBWWW */
1.83 kahan 222: if (me->reqStatus == HT_END)
1.41 cvs 223: {
1.58 cvs 224: if (AmayaIsAlive () && me->terminate_cbf)
1.82 vatton 225: (*me->terminate_cbf) (me->docid, 0, me->urlName, me->outputfile,
226: &(me->http_headers), me->context_tcbf);
1.58 cvs 227:
1.41 cvs 228: }
1.42 cvs 229: else if (me->reqStatus == HT_ABORT)
1.41 cvs 230: /* either the application ended or the user pressed the stop
231: button. We erase the incoming file, if it exists */
232: {
1.52 cvs 233: if (AmayaIsAlive () && me->terminate_cbf)
1.82 vatton 234: (*me->terminate_cbf) (me->docid, -1, me->urlName, me->outputfile,
235: &(me->http_headers), me->context_tcbf);
1.78 cvs 236: if (me->outputfile && me->outputfile[0] != EOS)
1.41 cvs 237: {
1.70 cvs 238: TtaFileUnlink (me->outputfile);
1.78 cvs 239: me->outputfile[0] = EOS;
1.70 cvs 240: }
1.41 cvs 241: }
1.83 kahan 242: else if (me->reqStatus == HT_ERR)
1.41 cvs 243: {
244: /* there was an error */
1.58 cvs 245: if (AmayaIsAlive && me->terminate_cbf)
1.82 vatton 246: (*me->terminate_cbf) (me->docid, -2, me->urlName, me->outputfile,
247: &(me->http_headers), me->context_tcbf);
1.41 cvs 248:
1.78 cvs 249: if (me->outputfile && me->outputfile[0] != EOS)
1.41 cvs 250: {
1.70 cvs 251: TtaFileUnlink (me->outputfile);
1.78 cvs 252: me->outputfile[0] = EOS;
1.41 cvs 253: }
254: }
1.58 cvs 255:
1.41 cvs 256: /* we erase the context if we're dealing with an asynchronous request */
1.61 cvs 257: if ((me->mode & AMAYA_ASYNC)
258: || (me->mode & AMAYA_IASYNC))
1.58 cvs 259: {
1.63 cvs 260: Document doc = me->docid;
1.58 cvs 261: me->reqStatus = HT_END;
262: /*** @@@ do we need this? yes!! **/
263: AHTLoadTerminate_handler (request, response, param, status);
264: AHTReqContext_delete (me);
1.63 cvs 265: AHTPrintPendingRequestStatus (doc, YES);
1.58 cvs 266: }
267: }
1.4 cvs 268:
1.32 cvs 269: #ifdef _WINDOWS
1.29 cvs 270: /*----------------------------------------------------------------
1.32 cvs 271: WIN_Activate_Request
1.29 cvs 272: when there are more open requests than available sockets, the
273: requests are put in a "pending state." When a socket becomes
274: available, libwww associates it with a pending request and then
275: calls this callback function. This function is responsible for
276: opening the temporary file where the GET and POST results
277: will be stored. The function is also responsible for
278: registering the socket with the Xt event loop.
279: Consult the libwww manual for more details on the signature
280: of this function.
281: ----------------------------------------------------------------*/
1.79 cvs 282: int WIN_Activate_Request (HTRequest * request, HTAlertOpcode op, int msgnum, const char *dfault, void *input, HTAlertPar * reply)
1.29 cvs 283: {
284: AHTReqContext *me = HTRequest_context (request);
285:
1.58 cvs 286: if (me->reqStatus == HT_NEW)
287: {
288: if (!(me->output)
289: && (me->output != stdout)
290: && me->outputfile
1.78 cvs 291: && (me->output = fopen (me->outputfile, "wb")) == NULL) {
1.58 cvs 292: /* the request is associated with a file */
1.78 cvs 293: me->outputfile[0] = EOS; /* file could not be opened */
1.70 cvs 294: TtaSetStatus (me->docid, 1, TtaGetMessage (AMAYA, AM_CANNOT_CREATE_FILE), me->outputfile);
1.58 cvs 295: me->reqStatus = HT_ERR;
296:
297: if (me->error_html)
298: DocNetworkStatus[me->docid] |= AMAYA_NET_ERROR; /* so we can show the error message */
299: }
300: else
301: {
302: #ifdef DEBUG_LIBWWW
303: if (THD_TRACE)
304: fprintf (stderr, "WIN_Activate_Request: Activating pending %s. "
305: "Open fd %d\n", me->urlName, (int) me->output);
306: #endif /* DEBUG_LIBWWW */
307: HTRequest_setOutputStream (me->request, AHTFWriter_new (me->request, me->output, YES));
308: /*change the status of the request */
309: me->reqStatus = HT_WAITING;
310: }
311: }
312: else if (me->reqStatus == HT_WAITING)
313: {
314: /*change the status of the request */
315: rewind (me->output);
316: if (HTRequest_outputStream (me->request) == NULL)
317: HTRequest_setOutputStream (me->request, AHTFWriter_new (me->request, me->output, YES));
318: }
1.32 cvs 319: else {
1.36 cvs 320: me->reqStatus = HT_ERR;
1.32 cvs 321: }
322:
1.36 cvs 323: return ((me->reqStatus != HT_ERR) ? HT_OK : HT_ERROR);
1.32 cvs 324: }
325:
1.85 ! gully 326: #endif /* _WINDOWS */
1.60 cvs 327:
1.11 cvs 328: /*----------------------------------------------------------------------
329: AHTEvent_register
330: callback called by libwww whenever a socket is open and associated
331: to a request. It sets the pertinent Xt events so that the Xt Event
332: loops gets an interruption whenever there's action of the socket.
333: In addition, it registers the request with libwww.
334: ----------------------------------------------------------------------*/
1.58 cvs 335: int AHTEvent_register (SOCKET sock, HTEventType type, HTEvent *event)
1.4 cvs 336: {
1.85 ! gully 337: int status = 0;
1.7 cvs 338:
1.40 cvs 339: if (sock == INVSOC)
340: {
1.36 cvs 341: #ifdef DEBUG_LIBWWW
1.58 cvs 342: fprintf(stderr, "AHTEvent_register: sock = INVSOC\n");
1.37 cvs 343: #endif /* DEBUG_LIBWWW */
1.58 cvs 344: return (0);
345: }
1.43 cvs 346:
1.85 ! gully 347: #if defined(_MOTIF) || defined(_GTK)
1.58 cvs 348: /* need something special for HTEvent_CLOSE */
349: if (type & ReadBits)
350: RequestRegisterReadXtevent (sock);
351:
352: if (type & WriteBits)
353: RequestRegisterWriteXtevent (sock);
354:
355: if (type & ExceptBits)
356: RequestRegisterExceptXtevent (sock);
1.85 ! gully 357: #endif /* #if defined(_MOTIF) || defined(_GTK) */
1.58 cvs 358:
1.51 cvs 359: #ifdef _WINDOWS
1.50 cvs 360: /* under windows, libwww requires an explicit FD_CLOSE registration
1.58 cvs 361: to detect HTTP responses not having a Content-Length header */
362: status = HTEventList_register (sock, type | HTEvent_CLOSE , event);
1.85 ! gully 363: #endif /* _WINDOWS */
! 364:
! 365: #if defined(_MOTIF) || defined(_GTK)
1.58 cvs 366: status = HTEventList_register (sock, type, event);
1.85 ! gully 367: #endif /* #if defined(_MOTIF) || defined(_GTK) */
1.58 cvs 368:
369: return (status);
370: }
1.50 cvs 371:
1.34 cvs 372: /*----------------------------------------------------------------------
373: AHTEvent_unregister
374: callback called by libwww each time a request is unregistered. This
375: function takes care of unregistering the pertinent Xt events
376: associated with the request's socket. In addition, it unregisters
377: the request from libwww.
378: ----------------------------------------------------------------------*/
1.58 cvs 379: int AHTEvent_unregister (SOCKET sock, HTEventType type)
1.34 cvs 380: {
1.58 cvs 381: int status;
1.76 kahan 382:
383: if (sock == INVSOC)
384: return HT_OK;
1.38 cvs 385:
1.85 ! gully 386: #if defined(_MOTIF) || defined(_GTK)
1.58 cvs 387: /* remove the Xt event hooks */
388: if (type & ReadBits)
389: RequestKillReadXtevent (sock);
390:
391: if (type & WriteBits)
392: RequestKillWriteXtevent (sock);
393:
394: if (type & ExceptBits)
395: RequestKillExceptXtevent (sock);
1.85 ! gully 396: #endif /* #if defined(_MOTIF) || defined(_GTK) */
1.35 cvs 397:
1.58 cvs 398: /* @@@ if this is the default for windows, no need to have AHTEvent_..
399: in windows!! */
1.35 cvs 400:
1.58 cvs 401: /* call libwww's default routine */
402: status = HTEventList_unregister (sock, type);
403:
1.7 cvs 404: return (status);
1.4 cvs 405: }
1.35 cvs 406:
1.85 ! gully 407: #if defined(_MOTIF) || defined(_GTK) || defined(_NOGUI)
1.58 cvs 408: /* Private functions */
409:
1.11 cvs 410: /*----------------------------------------------------------------------
411: RequestKillAllXtevents
412: front-end for kill all Xt events associated with the request pointed
413: to by "me".
414: ----------------------------------------------------------------------*/
1.79 cvs 415: void RequestKillAllXtevents (AHTReqContext * me)
1.4 cvs 416: {
1.58 cvs 417: int sock = INVSOC;
418:
419: return;
420:
421: /* @@@ what to do with this one? @@@ */
422: if (me->read_sock != INVSOC)
423: sock = me->read_sock;
424: else
425: if (me->write_sock != INVSOC)
426: sock = me->write_sock;
427: else
428: if (me->except_sock != INVSOC)
429: sock = me->except_sock;
430:
431: #ifdef DEBUG_LIBWWW
1.7 cvs 432: if (THD_TRACE)
1.58 cvs 433: fprintf (stderr, "RequestKillAllXtEvents: Clearing XtInputs\n");
434: #endif /* DEBUG_LIBWWW */
1.4 cvs 435:
1.58 cvs 436:
437: RequestKillReadXtevent (sock);
438: RequestKillWriteXtevent (sock);
439: RequestKillExceptXtevent (sock);
1.4 cvs 440: }
441:
1.11 cvs 442: /*----------------------------------------------------------------------
1.18 cvs 443: RequestRegisterReadXtevent
444: Registers with Xt the read events associated with socket sock
445: ----------------------------------------------------------------------*/
1.79 cvs 446: static void RequestRegisterReadXtevent (SOCKET sock)
1.18 cvs 447: {
1.58 cvs 448: int v;
449:
450: v = HASH (sock);
451:
452: if (!persSockets[v].read)
1.18 cvs 453: {
1.85 ! gully 454:
! 455: #ifdef _MOTIF
1.58 cvs 456: persSockets[v].read =
457: XtAppAddInput (app_cont,
458: sock,
459: (XtPointer) XtInputReadMask,
460: (XtInputCallbackProc) AHTCallback_bridge,
461: (XtPointer) XtInputReadMask);
1.85 ! gully 462: #endif /* _MOTIF */
! 463:
! 464: #ifdef _GTK
1.79 cvs 465: persSockets[v].read =
466: gdk_input_add ((gint) sock,
467: GDK_INPUT_READ,
468: AHTCallback_bridgeGTK,
469: (gpointer) sock);
470: #endif /* !_GTK */
471:
1.58 cvs 472: #ifdef DEBUG_LIBWWW
1.18 cvs 473: if (THD_TRACE)
1.58 cvs 474: fprintf (stderr, "RegisterReadXtEvent: adding XtInput %lu Socket %d\n",
475: persSockets[v].read, sock);
476: #endif /* DEBUG_LIBWWW */
1.18 cvs 477: }
478:
479: }
480:
481: /*----------------------------------------------------------------------
1.11 cvs 482: RequestKillReadXtevent
483: kills any read Xt event associated with the request pointed to by "me".
484: ----------------------------------------------------------------------*/
1.79 cvs 485: static void RequestKillReadXtevent (SOCKET sock)
1.4 cvs 486: {
1.58 cvs 487: int v;
488:
489: v = HASH (sock);
490:
491: if (persSockets[v].read)
492: {
493: #ifdef DEBUG_LIBWWW
494: if (THD_TRACE)
495: fprintf (stderr, "UnregisterReadXtEvent: Clearing XtInput %lu\n",
496: persSockets[v].read);
497: #endif /* DEBUG_LIBWWW */
1.85 ! gully 498:
! 499: #ifdef _MOTIF
1.58 cvs 500: XtRemoveInput (persSockets[v].read);
501: persSockets[v].read = (XtInputId) NULL;
1.85 ! gully 502: #endif /* _MOTIF */
! 503:
! 504: #ifdef _GTK
1.79 cvs 505: gdk_input_remove (persSockets[v].read);
506: persSockets[v].read = (gint) 0;
507: #endif /* !_GTK */
1.85 ! gully 508:
1.58 cvs 509: }
1.18 cvs 510: }
511:
512: /*----------------------------------------------------------------------
513: RequestRegisterWriteXtevent
514: Registers with Xt the write events associated with socket sock
515: ----------------------------------------------------------------------*/
1.79 cvs 516: static void RequestRegisterWriteXtevent (SOCKET sock)
1.18 cvs 517: {
1.58 cvs 518: int v;
519: v = HASH (sock);
1.18 cvs 520:
1.58 cvs 521: if (!persSockets[v].write)
522: {
1.85 ! gully 523: #ifdef _MOTIF
1.58 cvs 524: persSockets[v].write =
525: XtAppAddInput (app_cont,
526: sock,
1.18 cvs 527: (XtPointer) XtInputWriteMask,
528: (XtInputCallbackProc) AHTCallback_bridge,
529: (XtPointer) XtInputWriteMask);
1.85 ! gully 530: #endif /* _MOTIF */
! 531:
! 532: #ifdef _GTK
1.79 cvs 533: persSockets[v].write =
534: gdk_input_add ((gint) sock,
535: GDK_INPUT_WRITE,
536: AHTCallback_bridgeGTK,
537: (gpointer) sock);
1.85 ! gully 538: #endif /* _GTK */
1.79 cvs 539:
1.58 cvs 540: #ifdef DEBUG_LIBWWW
1.18 cvs 541: if (THD_TRACE)
1.58 cvs 542: fprintf (stderr, "RegisterWriteXtEvent: Adding XtInput %lu Socket %d\n",
543: persSockets[v].write, sock);
544: #endif /* DEBUG_LIBWWW */
545:
546: }
1.4 cvs 547: }
548:
1.11 cvs 549: /*----------------------------------------------------------------------
550: RequestKillWriteXtevent
551: kills any write Xt event associated with the request pointed to
552: by "me".
553: ----------------------------------------------------------------------*/
1.79 cvs 554: static void RequestKillWriteXtevent (SOCKET sock)
1.4 cvs 555: {
1.58 cvs 556: int v;
557:
558: v = HASH (sock);
559:
560: if (persSockets[v].write)
561: {
562: #ifdef DEBUG_LIBWWW
563: if (THD_TRACE)
564: fprintf (stderr, "UnRegisterWriteXtEvent: Clearing Write XtInputs "
565: "%lu\n",
566: persSockets[v].write);
567: #endif /* DEBUG_LIBWWW */
1.85 ! gully 568:
! 569: #ifdef _MOTIF
1.58 cvs 570: XtRemoveInput (persSockets[v].write);
571: persSockets[v].write = (XtInputId) NULL;
1.85 ! gully 572: #endif /* _MOTIF */
! 573:
! 574: #ifdef _GTK
1.79 cvs 575: gdk_input_remove (persSockets[v].write);
576: persSockets[v].write = (gint) 0;
1.85 ! gully 577: #endif /* _GTK */
! 578:
1.58 cvs 579: }
1.18 cvs 580: }
581:
582: /*----------------------------------------------------------------------
583: RequestRegisterExceptXtevent
584: Registers with Xt the except events associated with socket sock
585: ----------------------------------------------------------------------*/
1.79 cvs 586: static void RequestRegisterExceptXtevent (SOCKET sock)
1.18 cvs 587: {
1.58 cvs 588: int v;
589:
590: v = HASH (sock);
591:
592: if (!persSockets[v].except)
1.18 cvs 593: {
1.85 ! gully 594: #ifdef _MOTIF
1.58 cvs 595: persSockets[v].except =
596: XtAppAddInput (app_cont,
597: sock,
598: (XtPointer) XtInputExceptMask,
599: (XtInputCallbackProc) AHTCallback_bridge,
600: (XtPointer) XtInputExceptMask);
1.85 ! gully 601: #endif /* _MOTIF */
! 602:
! 603: #ifdef _GTK
1.79 cvs 604: persSockets[v].except =
605: gdk_input_add ((gint) sock,
606: GDK_INPUT_EXCEPTION,
607: AHTCallback_bridgeGTK,
608: (gpointer) sock);
1.85 ! gully 609: #endif /* _GTK */
! 610:
1.58 cvs 611: #ifdef DEBUG_LIBWWW
612: if (THD_TRACE)
613: fprintf (stderr, "RegisterExceptXtEvent: adding XtInput %lu Socket %d\n",
614: persSockets[v].except, sock);
615: #endif /* DEBUG_LIBWWW */
1.18 cvs 616: }
1.4 cvs 617: }
618:
1.11 cvs 619: /*----------------------------------------------------------------------
620: RequestKillExceptXtevent
621: kills any exception Xt event associated with the request pointed to
622: by "me".
623: ----------------------------------------------------------------------*/
1.79 cvs 624: static void RequestKillExceptXtevent (SOCKET sock)
1.4 cvs 625: {
1.58 cvs 626: int v;
627:
628: v = HASH (sock);
629: if (persSockets[v].except)
630: {
631: #ifdef DEBUG_LIBWWW
632: if (THD_TRACE)
633: fprintf (stderr, "UnregisterExceptXtEvent: Clearing Except XtInputs "
634: "%lu\n", persSockets[v].except);
635: #endif /* DEBUG_LIBWWW */
1.85 ! gully 636:
! 637: #ifdef _MOTIF
1.58 cvs 638: XtRemoveInput (persSockets[v].except);
639: persSockets[v].except = (XtInputId) NULL;
1.85 ! gully 640: #endif /* _MOTIF */
! 641:
! 642: #ifdef _GTK
1.79 cvs 643: gdk_input_remove (persSockets[v].except);
644: persSockets[v].except = (gint) 0;
1.85 ! gully 645: #endif /* _GTK */
! 646:
1.58 cvs 647: }
648: }
649:
650: /*----------------------------------------------------------------------
651: Xt Timer functions
652: ----------------------------------------------------------------------*/
653:
654: struct _HTTimer {
655: ms_t millis; /* Relative value in millis */
656: ms_t expires; /* Absolute value in millis */
657: BOOL relative;
658: BOOL repetitive;
659: void * param; /* Client supplied context */
660: HTTimerCallback * cbf;
661: };
662:
663: struct _AmayaTimer {
664: HTTimer *libwww_timer;
1.85 ! gully 665:
! 666: #ifdef _MOTIF
1.58 cvs 667: XtIntervalId xt_timer;
1.85 ! gully 668: #endif /* _MOTIF */
! 669:
! 670: #ifdef _GTK
1.79 cvs 671: guint xt_timer;
1.85 ! gully 672: #endif /* _GTK */
! 673:
! 674: #ifdef _NOGUI
! 675: unsigned int xt_timer;
! 676: #endif /* #ifdef _NOGUI */
! 677:
1.58 cvs 678: };
679:
680: typedef struct _AmayaTimer AmayaTimer;
681:
682: static HTList *Timers = NULL;
683:
684: /*----------------------------------------------------------------------
1.79 cvs 685: TimerCallback
686: called by the system event loop. Timers shouldn't be restarted
687: on exiting.
1.58 cvs 688: ----------------------------------------------------------------------*/
1.85 ! gully 689: #ifdef _MOTIF
1.58 cvs 690: void *TimerCallback (XtPointer cdata, XtIntervalId *id)
691: {
692: HTList *cur, *last;
693: AmayaTimer *me;
694: HTTimer *libwww_timer;
695:
696: if (!AmayaIsAlive ()
697: || Timers == NULL)
698: return (0);
699:
700: /* find the timer from the uid */
701: last = cur = Timers;
702: while ((me = (AmayaTimer * ) HTList_nextObject (cur)))
703: {
704: if (me->xt_timer == *id)
705: break;
706: last = cur;
707: }
708:
709: if (me)
710: {
711: libwww_timer = me->libwww_timer;
712: /* remove the element from the list @@@ can be optimized later */
713: HTList_quickRemoveElement(cur, last);
714: TtaFreeMemory (me);
715: HTTimer_dispatch (libwww_timer);
716: }
717:
718: return (0);
719: }
1.85 ! gully 720: #endif /* _MOTIF */
1.58 cvs 721:
1.85 ! gully 722: #ifdef _GTK
1.79 cvs 723: /*----------------------------------------------------------------------
724: TimerCallbackGTK
1.81 kahan 725: The callback returns FALSE to destroy the timer that called it.
1.79 cvs 726: ----------------------------------------------------------------------*/
727: gboolean TimerCallbackGTK (gpointer id)
728: {
729: HTList *cur, *last;
730: AmayaTimer *me;
731: HTTimer *libwww_timer;
732: AmayaTimer *data;
733:
734: data = (AmayaTimer *) id;
735:
736: if (!AmayaIsAlive ()
737: || Timers == NULL)
1.81 kahan 738: return (FALSE);
1.79 cvs 739:
740: /* find the timer from the uid */
741: last = cur = Timers;
742: while ((me = (AmayaTimer * ) HTList_nextObject (cur)))
743: {
744: if (me == data)
745: break;
746: last = cur;
747: }
748:
749: if (me)
750: {
751: libwww_timer = me->libwww_timer;
752: /* remove the element from the list @@@ can be optimized later */
753: HTList_quickRemoveElement(cur, last);
754: TtaFreeMemory (me);
755: HTTimer_dispatch (libwww_timer);
756: }
757:
758: return (FALSE);
759: }
1.85 ! gully 760: #endif /* _GTK */
1.79 cvs 761:
1.58 cvs 762: /*----------------------------------------------------------------------
1.59 cvs 763: KillAllTimers
1.58 cvs 764: ----------------------------------------------------------------------*/
1.59 cvs 765: void KillAllTimers (void)
1.58 cvs 766: {
767: /* @@@ maybe add something else to kill the Xt things */
768: if (Timers)
769: HTList_delete (Timers);
1.65 cvs 770: Timers = NULL;
1.58 cvs 771: }
772:
773: /*----------------------------------------------------------------------
1.59 cvs 774: AMAYA_SetTimer
775: ----------------------------------------------------------------------*/
776: void AMAYA_SetTimer (HTTimer *libwww_timer)
1.58 cvs 777: {
778: HTList *cur, *last;
779: AmayaTimer *me;
780:
781: if (!AmayaIsAlive
782: || libwww_timer == NULL
783: || libwww_timer->expires == 0)
784: return;
785:
786: if (Timers == NULL)
787: Timers = HTList_new ();
788:
789: /* see if this timer existed already */
790: last = cur = Timers;
791: while ((me = (AmayaTimer * ) HTList_nextObject (cur)))
792: {
793: if (me->libwww_timer == libwww_timer)
794: break;
795: last = cur;
796: }
797:
798: if (me)
799: {
800: /* remove the old timer */
801: if (me->xt_timer)
802: {
1.85 ! gully 803:
! 804: #ifdef _MOTIF
1.58 cvs 805: XtRemoveTimeOut (me->xt_timer);
1.59 cvs 806: me->xt_timer = (XtIntervalId) NULL;
1.85 ! gully 807: #endif /* _MOTIF */
! 808:
! 809: #ifdef _GTK
1.79 cvs 810: gtk_timeout_remove (me->xt_timer);
811: me->xt_timer = (guint) 0;
812: #endif /* !_GTK */
1.85 ! gully 813:
! 814: }
1.58 cvs 815: }
816: else
817: {
818: /* create a new element */
819: me = TtaGetMemory (sizeof (AmayaTimer));
820: /* and add it to the list */
821: HTList_addObject(last, (void *) me);
822: me->libwww_timer = libwww_timer;
823: }
824:
825: /* add a new time out */
1.85 ! gully 826: #ifdef _MOTIF
1.58 cvs 827: me->xt_timer = XtAppAddTimeOut (app_cont,
828: me->libwww_timer->millis,
829: (XtTimerCallbackProc) TimerCallback,
830: (XtPointer *) (void *) me);
1.85 ! gully 831: #endif /* _MOTIF */
! 832:
! 833: #ifdef _GTK
1.79 cvs 834: me->xt_timer = gtk_timeout_add ((guint32) me->libwww_timer->millis,
835: (GtkFunction) TimerCallbackGTK,
836: (gpointer) me);
1.85 ! gully 837: #endif /* _GTK */
! 838:
1.58 cvs 839: }
840:
841: /*----------------------------------------------------------------------
1.59 cvs 842: AMAYA_DeleteTimer
1.58 cvs 843: ----------------------------------------------------------------------*/
1.59 cvs 844: void AMAYA_DeleteTimer (HTTimer *libwww_timer)
1.58 cvs 845: {
846: HTList *cur, *last;
847: AmayaTimer *me;
848:
1.59 cvs 849: if (Timers == NULL || libwww_timer == NULL)
1.58 cvs 850: return;
851:
852: /* find the id */
853: last = cur = Timers;
854: while ((me = (AmayaTimer * ) HTList_nextObject (cur)))
855: {
1.59 cvs 856: if (me->libwww_timer == libwww_timer)
1.58 cvs 857: break;
858: last = cur;
859: }
860:
861: if (me)
862: {
863: /* remove the Xt timer */
1.85 ! gully 864: #ifdef _MOTIF
1.58 cvs 865: XtRemoveTimeOut (me->xt_timer);
1.85 ! gully 866: #endif /* _MOTIF */
! 867:
! 868: #ifdef _GTK
1.79 cvs 869: gtk_timeout_remove (me->xt_timer);
1.85 ! gully 870: #endif /* _GTK */
! 871:
1.58 cvs 872: /* and the element from the list */
1.65 cvs 873: HTList_removeObject (Timers, me);
1.58 cvs 874: TtaFreeMemory (me);
875: }
1.31 cvs 876: }
1.85 ! gully 877: #endif /* #if defined(_MOTIF) || defined(_GTK) || defined(_NOGUI) */
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