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