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1.1 bertrand 1: /*
2: ================================================================================
1.68 bertrand 3: RPL/2 (R) version 4.1.12
1.71 ! bertrand 4: Copyright (C) 1989-2013 Dr. BERTRAND Joël
1.1 bertrand 5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
1.20 bertrand 23: #include "rpl-conv.h"
1.1 bertrand 24:
25:
26: /*
27: ================================================================================
28: Fonction 'while'
29: ================================================================================
30: Entrées :
31: --------------------------------------------------------------------------------
32: Sorties :
33: --------------------------------------------------------------------------------
34: Effets de bord : néant
35: ================================================================================
36: */
37:
38: void
39: instruction_while(struct_processus *s_etat_processus)
40: {
41: (*s_etat_processus).erreur_execution = d_ex;
42:
43: if ((*s_etat_processus).affichage_arguments == 'Y')
44: {
45: printf("\n WHILE ");
46:
47: if ((*s_etat_processus).langue == 'F')
48: {
49: printf("(structure de contrôle)\n\n");
50: printf(" Utilisation :\n\n");
51: }
52: else
53: {
54: printf("(control statement)\n\n");
55: printf(" Usage:\n\n");
56: }
57:
58: printf(" WHILE\n");
59: printf(" (clause)\n");
60: printf(" REPEAT\n");
61: printf(" (expression 1)\n");
62: printf(" EXIT\n");
63: printf(" (expression 2)\n");
64: printf(" END\n\n");
65:
66: printf(" WHILE\n");
67: printf(" (clause)\n");
68: printf(" REPEAT\n");
69: printf(" (expression)\n");
70: printf(" END\n");
71:
72: return;
73: }
74: else if ((*s_etat_processus).test_instruction == 'Y')
75: {
76: (*s_etat_processus).nombre_arguments = -1;
77: return;
78: }
79:
80: empilement_pile_systeme(s_etat_processus);
81:
82: if ((*s_etat_processus).erreur_systeme != d_es)
83: {
84: return;
85: }
86:
87: (*(*s_etat_processus).l_base_pile_systeme).type_cloture = 'W';
88: (*(*s_etat_processus).l_base_pile_systeme).clause = 'W';
89:
90: if ((*s_etat_processus).mode_execution_programme == 'Y')
91: {
92: (*(*s_etat_processus).l_base_pile_systeme).adresse_retour =
93: (*s_etat_processus).position_courante;
94: }
95: else
96: {
97: if ((*s_etat_processus).expression_courante == NULL)
98: {
99: (*s_etat_processus).erreur_execution =
100: d_ex_erreur_traitement_boucle;
101: return;
102: }
103:
104: (*(*s_etat_processus).l_base_pile_systeme).pointeur_objet_retour =
105: (*s_etat_processus).expression_courante;
106: }
107:
108: return;
109: }
110:
111:
112: /*
113: ================================================================================
114: Fonction 'warranty'
115: ================================================================================
116: Entrées :
117: --------------------------------------------------------------------------------
118: Sorties :
119: --------------------------------------------------------------------------------
120: Effets de bord : néant
121: ================================================================================
122: */
123:
124: void
125: instruction_warranty(struct_processus *s_etat_processus)
126: {
1.20 bertrand 127: # include "garanties-conv.h"
1.1 bertrand 128:
129: (*s_etat_processus).erreur_execution = d_ex;
130:
131: if ((*s_etat_processus).affichage_arguments == 'Y')
132: {
133: printf("\n WARRANTY ");
134:
135: if ((*s_etat_processus).langue == 'F')
136: {
137: printf("(garantie)\n\n");
138: printf(" Aucun argument\n");
139: }
140: else
141: {
142: printf("(warranty)\n\n");
143: printf(" No argument\n");
144: }
145:
146: return;
147: }
148: else if ((*s_etat_processus).test_instruction == 'Y')
149: {
150: (*s_etat_processus).nombre_arguments = -1;
151: return;
152: }
153:
154: printf("%s\n", warranty);
155:
156: if ((*s_etat_processus).hauteur_pile_operationnelle == 0)
157: {
158: printf("\n");
159: }
160:
161: return;
162: }
163:
164:
165: /*
166: ================================================================================
167: Fonction 'wait'
168: ================================================================================
169: Entrées :
170: --------------------------------------------------------------------------------
171: Sorties :
172: --------------------------------------------------------------------------------
173: Effets de bord : néant
174: ================================================================================
175: */
176:
177: void
178: instruction_wait(struct_processus *s_etat_processus)
179: {
180: int code_retour;
181: int erreur;
182:
183: real8 attente;
184:
185: struct_objet *s_objet;
186:
187: struct timespec temporisation;
188:
189: (*s_etat_processus).erreur_execution = d_ex;
190:
191: if ((*s_etat_processus).affichage_arguments == 'Y')
192: {
193: printf("\n WAIT ");
194:
195: if ((*s_etat_processus).langue == 'F')
196: {
197: printf("(attente exprimée en secondes)\n\n");
198: }
199: else
200: {
201: printf("(wait a number of seconds)\n\n");
202: }
203:
204: printf(" 1: %s, %s\n", d_INT, d_REL);
205:
206: return;
207: }
208: else if ((*s_etat_processus).test_instruction == 'Y')
209: {
210: (*s_etat_processus).nombre_arguments = -1;
211: return;
212: }
213:
214: if (test_cfsf(s_etat_processus, 31) == d_vrai)
215: {
216: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
217: {
218: return;
219: }
220: }
221:
222: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
223: &s_objet) == d_erreur)
224: {
225: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
226: return;
227: }
228:
1.30 bertrand 229: if (((*s_objet).type == INT) || ((*s_objet).type == REL))
1.1 bertrand 230: {
231: if ((*s_objet).type == INT)
232: {
233: attente = (real8) (*((integer8 *) (*s_objet).objet));
234: }
235: else
236: {
237: attente = (*((real8 *) (*s_objet).objet));
238: }
239:
240: if (attente < 0)
241: {
242: liberation(s_etat_processus, s_objet);
243:
244: (*s_etat_processus).erreur_execution = d_ex_argument_invalide;
245: return;
246: }
247:
248: temporisation.tv_sec = (long) floor((double) attente);
249: temporisation.tv_nsec = (attente - temporisation.tv_sec) *
250: (long) 1000000000;
251:
252: if ((*s_etat_processus).profilage == d_vrai)
253: {
254: profilage(s_etat_processus, "Sleep function (WAIT)");
255:
256: if ((*s_etat_processus).erreur_systeme != d_es)
257: {
258: return;
259: }
260: }
261:
262: do
263: {
1.51 bertrand 264: # ifndef SEMAPHORES_NOMMES
265: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
266: # else
267: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
268: # endif
1.1 bertrand 269: {
270: (*s_etat_processus).erreur_systeme = d_es_processus;
271: return;
272: }
273:
274: code_retour = nanosleep(&temporisation, &temporisation);
275: erreur = errno;
276:
1.51 bertrand 277: # ifndef SEMAPHORES_NOMMES
278: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
279: # else
280: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
281: # endif
1.1 bertrand 282: {
1.50 bertrand 283: if (errno != EINTR)
284: {
285: (*s_etat_processus).erreur_systeme = d_es_processus;
286: return;
287: }
1.1 bertrand 288: }
1.28 bertrand 289:
290: scrutation_injection(s_etat_processus);
291:
292: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
293: {
294: affectation_interruptions_logicielles(s_etat_processus);
295: }
296:
297: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
298: {
299: traitement_interruptions_logicielles(s_etat_processus);
300: }
1.1 bertrand 301: } while(((code_retour == -1) && (erreur == EINTR))
302: && ((*s_etat_processus).var_volatile_requete_arret == 0));
303:
304: if ((*s_etat_processus).profilage == d_vrai)
305: {
306: profilage(s_etat_processus, NULL);
307: }
308: }
309: else
310: {
311: liberation(s_etat_processus, s_objet);
312:
313: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
314: return;
315: }
316:
317: liberation(s_etat_processus, s_objet);
318:
319: return;
320: }
321:
322:
323: /*
324: ================================================================================
325: Fonction 'wireframe' (passe en mode d'affichage échantillonné)
326: ================================================================================
327: Entrées : structure processus
328: --------------------------------------------------------------------------------
329: Sorties :
330: --------------------------------------------------------------------------------
331: Effets de bord : néant
332: ================================================================================
333: */
334:
335: void
336: instruction_wireframe(struct_processus *s_etat_processus)
337: {
338: (*s_etat_processus).erreur_execution = d_ex;
339:
340: if ((*s_etat_processus).affichage_arguments == 'Y')
341: {
342: printf("\n WIREFRAME ");
343:
344: if ((*s_etat_processus).langue == 'F')
345: {
346: printf("(graphique tridimensionnel grillagé)\n\n");
347: printf(" Aucun argument\n");
348: }
349: else
350: {
351: printf("(wireframe 3D graph)\n\n");
352: printf(" No argument\n");
353: }
354:
355: return;
356: }
357: else if ((*s_etat_processus).test_instruction == 'Y')
358: {
359: (*s_etat_processus).nombre_arguments = -1;
360: return;
361: }
362:
363: strcpy((*s_etat_processus).type_trace_eq, "GRILLE 3D");
364:
365: return;
366: }
367:
368:
369: /*
370: ================================================================================
371: Fonction 'write'
372: ================================================================================
373: Entrées : structure processus
374: --------------------------------------------------------------------------------
375: Sorties :
376: --------------------------------------------------------------------------------
377: Effets de bord : néant
378: ================================================================================
379: */
380:
381: void
382: instruction_write(struct_processus *s_etat_processus)
383: {
1.6 bertrand 384: const char *queue;
385:
1.1 bertrand 386: int adresse[16];
387: int port;
1.70 bertrand 388: int sqlite_status;
1.1 bertrand 389:
1.8 bertrand 390: integer8 clef;
391: integer8 compteur;
392: integer8 id;
393: integer8 ordre;
394:
1.64 bertrand 395: logical1 format_degenere;
1.8 bertrand 396: logical1 mise_a_jour;
397:
1.64 bertrand 398: long longueur;
1.1 bertrand 399: long longueur_effective;
400: long recursivite;
401:
1.6 bertrand 402: sqlite3_stmt *ppStmt;
403:
1.1 bertrand 404: ssize_t ios;
405:
1.5 bertrand 406: struct_descripteur_fichier *descripteur;
407:
1.8 bertrand 408: struct_liste_chainee *l_element_courant;
409: struct_liste_chainee *l_element_courant_format;
410:
411: struct_objet *s_format;
412: struct_objet *s_element;
1.6 bertrand 413: struct_objet *s_objet_argument_1;
1.1 bertrand 414: struct_objet *s_objet_argument_2;
1.6 bertrand 415: struct_objet *s_objet_argument_3;
1.1 bertrand 416:
417: struct sigaction action;
418: struct sigaction registre;
419:
420: struct sockaddr_in adresse_ipv4;
1.20 bertrand 421: # ifdef IPV6
1.1 bertrand 422: struct sockaddr_in6 adresse_ipv6;
1.20 bertrand 423: # endif
1.1 bertrand 424: struct sockaddr_un adresse_unix;
425:
426: struct flock lock;
427:
1.70 bertrand 428: struct timespec attente;
429:
1.1 bertrand 430: uint32_t calcul_adresse;
431:
432: unsigned char *chaine;
1.5 bertrand 433: unsigned char *chaine_utf8;
1.8 bertrand 434: unsigned char *clef_utf8;
1.6 bertrand 435: unsigned char *commande;
1.64 bertrand 436: unsigned char *format_chaine;
1.1 bertrand 437:
438: unsigned long i;
439:
440: (*s_etat_processus).erreur_execution = d_ex;
441:
442: if ((*s_etat_processus).affichage_arguments == 'Y')
443: {
444: printf("\n WRITE ");
445:
446: if ((*s_etat_processus).langue == 'F')
447: {
448: printf("(écriture d'un enregistrement d'un fichier)\n\n");
449: }
450: else
451: {
452: printf("(write a record of a file)\n\n");
453: }
454:
455: printf(" 2: %s\n", d_LST);
1.6 bertrand 456: printf(" 1: %s, %s\n\n", d_FCH, d_SCK);
1.1 bertrand 457:
1.6 bertrand 458: printf(" 3: %s\n", d_LST);
1.8 bertrand 459: printf(" 2: %s\n", d_INT);
1.6 bertrand 460: printf(" 1: %s\n", d_FCH);
1.1 bertrand 461: return;
462: }
463: else if ((*s_etat_processus).test_instruction == 'Y')
464: {
465: (*s_etat_processus).nombre_arguments = -1;
466: return;
467: }
468:
469: if (test_cfsf(s_etat_processus, 31) == d_vrai)
470: {
1.6 bertrand 471: if ((*s_etat_processus).l_base_pile == NULL)
1.1 bertrand 472: {
1.6 bertrand 473: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1.1 bertrand 474: return;
475: }
1.6 bertrand 476:
477: if ((*(*(*s_etat_processus).l_base_pile).donnee).type == FCH)
478: {
479: if ((*((struct_fichier *) (*(*(*s_etat_processus).l_base_pile)
1.9 bertrand 480: .donnee).objet)).acces == 'D')
1.6 bertrand 481: {
1.9 bertrand 482: if (empilement_pile_last(s_etat_processus, 3) == d_erreur)
1.6 bertrand 483: {
484: return;
485: }
486: }
487: else
488: {
1.9 bertrand 489: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
1.6 bertrand 490: {
491: return;
492: }
493: }
494: }
495: else
496: {
497: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
498: {
499: return;
500: }
501: }
1.1 bertrand 502: }
503:
504: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
505: &s_objet_argument_1) == d_erreur)
506: {
507: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
508: return;
509: }
510:
511: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
512: &s_objet_argument_2) == d_erreur)
513: {
514: liberation(s_etat_processus, s_objet_argument_1);
515:
516: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
517: return;
518: }
519:
1.6 bertrand 520: if ((*s_objet_argument_1).type == FCH)
1.1 bertrand 521: {
1.5 bertrand 522: if ((descripteur = descripteur_fichier(s_etat_processus,
523: (struct_fichier *) (*s_objet_argument_1).objet)) == NULL)
524: {
525: return;
526: }
527:
1.1 bertrand 528: /*
529: * Vérification des verrous
530: */
531:
532: lock.l_type = F_WRLCK;
533: lock.l_whence = SEEK_SET;
534: lock.l_start = 0;
535: lock.l_len = 0;
536: lock.l_pid = getpid();
537: recursivite = 0;
538:
1.5 bertrand 539: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
540: == -1)
1.1 bertrand 541: {
542: liberation(s_etat_processus, s_objet_argument_2);
543: liberation(s_etat_processus, s_objet_argument_1);
544:
545: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
546: return;
547: }
548:
549: if (lock.l_type != F_UNLCK)
550: {
551: liberation(s_etat_processus, s_objet_argument_2);
552: liberation(s_etat_processus, s_objet_argument_1);
553:
554: (*s_etat_processus).erreur_execution =
555: d_ex_fichier_verrouille;
556: return;
557: }
558:
559: /*
560: * Vérification de l'autorisation d'écriture
561: */
562:
563: if ((*((struct_fichier *) (*s_objet_argument_1).objet))
564: .protection == 'R')
565: {
566: liberation(s_etat_processus, s_objet_argument_2);
567: liberation(s_etat_processus, s_objet_argument_1);
568:
569: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
570: return;
571: }
572:
573: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire == 'N')
574: {
575: /*
576: * Fichiers formatés
577: */
578:
1.6 bertrand 579: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
580: == 'S')
1.1 bertrand 581: {
1.6 bertrand 582: if ((*s_objet_argument_2).type != LST)
583: {
584: liberation(s_etat_processus, s_objet_argument_2);
585: liberation(s_etat_processus, s_objet_argument_1);
586:
587: (*s_etat_processus).erreur_execution =
588: d_ex_erreur_type_argument;
589: return;
590: }
591:
592: if ((chaine = formateur_fichier(s_etat_processus,
593: s_objet_argument_2, (*((struct_fichier *)
594: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
595: &longueur_effective, &recursivite)) == NULL)
596: {
597: liberation(s_etat_processus, s_objet_argument_2);
598: liberation(s_etat_processus, s_objet_argument_1);
1.1 bertrand 599:
1.6 bertrand 600: return;
601: }
1.1 bertrand 602:
1.5 bertrand 603: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
604:
605: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
606: != 0)
1.1 bertrand 607: {
608: liberation(s_etat_processus, s_objet_argument_2);
609: liberation(s_etat_processus, s_objet_argument_1);
610:
611: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
612: return;
613: }
614:
1.5 bertrand 615: if ((chaine_utf8 = transliteration(s_etat_processus,
616: chaine, d_locale, "UTF-8")) == NULL)
617: {
1.6 bertrand 618: free(chaine);
619:
1.5 bertrand 620: liberation(s_etat_processus, s_objet_argument_2);
621: liberation(s_etat_processus, s_objet_argument_1);
622:
623: return;
624: }
625:
1.6 bertrand 626: free(chaine);
627:
1.7 bertrand 628: if (fprintf((*descripteur).descripteur_c, "%s\n", chaine_utf8)
629: < 0)
1.1 bertrand 630: {
1.5 bertrand 631: free(chaine_utf8);
632:
1.1 bertrand 633: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
634: return;
635: }
1.5 bertrand 636:
637: free(chaine_utf8);
1.1 bertrand 638: }
639: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
640: == 'D')
641: {
1.6 bertrand 642: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
643:
644: if ((*s_objet_argument_2).type != INT)
645: {
646: liberation(s_etat_processus, s_objet_argument_2);
647: liberation(s_etat_processus, s_objet_argument_1);
648:
649: (*s_etat_processus).erreur_execution =
650: d_ex_erreur_type_argument;
651: return;
652: }
653:
654: if (depilement(s_etat_processus, &((*s_etat_processus)
655: .l_base_pile), &s_objet_argument_3) == d_erreur)
656: {
657: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
658: return;
659: }
660:
661: if ((*s_objet_argument_3).type != LST)
662: {
663: liberation(s_etat_processus, s_objet_argument_3);
664: liberation(s_etat_processus, s_objet_argument_2);
665: liberation(s_etat_processus, s_objet_argument_1);
666:
667: (*s_etat_processus).erreur_execution =
668: d_ex_erreur_type_argument;
669: return;
670: }
671:
1.8 bertrand 672: // Modification ou création d'un nouvel enregistrement
673:
674: if ((chaine = formateur_fichier(s_etat_processus,
675: s_objet_argument_3, (*((struct_fichier *)
676: (*s_objet_argument_1).objet)).format, 0, 0, ' ',
677: 'F', &longueur_effective, &recursivite)) == NULL)
678: {
679: liberation(s_etat_processus, s_objet_argument_3);
680: liberation(s_etat_processus, s_objet_argument_2);
681: liberation(s_etat_processus, s_objet_argument_1);
682:
683: return;
684: }
685:
686: if ((chaine_utf8 = transliteration(s_etat_processus,
687: chaine, d_locale, "UTF-8")) == NULL)
688: {
689: free(chaine);
690:
691: liberation(s_etat_processus, s_objet_argument_3);
692: liberation(s_etat_processus, s_objet_argument_2);
693: liberation(s_etat_processus, s_objet_argument_1);
694:
695: return;
696: }
697:
698: free(chaine);
699:
700: if (alsprintf(&commande, "insert or replace into data "
701: "(id, data) values (%lld, '%s')", (*((integer8 *)
702: (*s_objet_argument_2).objet)), chaine_utf8) < 0)
703: {
1.9 bertrand 704: (*s_etat_processus).erreur_systeme =
705: d_es_allocation_memoire;
1.8 bertrand 706: return;
707: }
708:
709: free(chaine_utf8);
710:
711: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
712: commande, strlen(commande), &ppStmt, &queue)
713: != SQLITE_OK)
714: {
715: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
716: return;
717: }
718:
719: if (sqlite3_step(ppStmt) != SQLITE_DONE)
720: {
721: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
722: return;
723: }
724:
725: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
726: {
727: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
728: return;
729: }
730:
731: liberation(s_etat_processus, s_objet_argument_3);
732: free(commande);
733: }
734: else // Fichiers indexés
735: {
736: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
737:
738: if ((*s_objet_argument_2).type != LST)
739: {
740: liberation(s_etat_processus, s_objet_argument_2);
741: liberation(s_etat_processus, s_objet_argument_1);
742:
743: (*s_etat_processus).erreur_execution =
744: d_ex_erreur_type_argument;
745: return;
746: }
747:
1.9 bertrand 748: // Récupération de la position de la clef
1.8 bertrand 749:
750: if (alsprintf(&commande, "select key from control "
751: "where id = 1") < 0)
752: {
1.9 bertrand 753: (*s_etat_processus).erreur_systeme =
754: d_es_allocation_memoire;
1.8 bertrand 755: return;
756: }
757:
758: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
759: commande, strlen(commande), &ppStmt, &queue)
760: != SQLITE_OK)
761: {
1.9 bertrand 762: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 763: return;
764: }
765:
1.70 bertrand 766: attente.tv_sec = 0;
767: attente.tv_nsec = GRANULARITE_us * 1000;
768:
769: do
1.8 bertrand 770: {
1.70 bertrand 771: sqlite_status = sqlite3_step(ppStmt);
772:
773: if (sqlite_status == SQLITE_ROW)
774: {
775: break;
776: }
777: else if ((sqlite_status == SQLITE_BUSY) ||
778: (sqlite_status == SQLITE_LOCKED))
779: {
780: nanosleep(&attente, NULL);
781: INCR_GRANULARITE(attente.tv_nsec);
782: }
783: else
784: {
785: (*s_etat_processus).erreur_systeme =
786: d_es_erreur_fichier;
787: return;
788: }
789: } while(sqlite_status != SQLITE_ROW);
1.8 bertrand 790:
791: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
792: {
1.9 bertrand 793: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 794: return;
795: }
796:
797: clef = sqlite3_column_int64(ppStmt, 0);
798:
799: if (sqlite3_step(ppStmt) != SQLITE_DONE)
800: {
1.9 bertrand 801: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 802: return;
803: }
804:
805: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
806: {
1.9 bertrand 807: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 808: return;
809: }
810:
811: free(commande);
812:
813: l_element_courant = (struct_liste_chainee *)
814: (*s_objet_argument_2).objet;
815: l_element_courant_format = (struct_liste_chainee *)
816: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
817: .format).objet;
818: compteur = 1;
819:
820: while((l_element_courant != NULL) &&
821: (l_element_courant_format != NULL))
822: {
823: if (compteur == clef)
824: {
825: break;
826: }
827:
828: l_element_courant = (*l_element_courant).suivant;
829: l_element_courant_format = (*l_element_courant_format)
830: .suivant;
831: compteur++;
832: }
833:
834: if ((l_element_courant == NULL) ||
835: (l_element_courant_format == NULL))
836: {
837: (*s_etat_processus).erreur_execution =
838: d_ex_clef_inexistante;
839:
840: liberation(s_etat_processus, s_objet_argument_2);
841: liberation(s_etat_processus, s_objet_argument_1);
842:
843: return;
844: }
845:
846: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
847: {
848: (*s_etat_processus).erreur_systeme =
849: d_es_allocation_memoire;
850: return;
851: }
852:
853: if (((*s_element).objet = allocation_maillon(s_etat_processus))
854: == NULL)
855: {
856: (*s_etat_processus).erreur_systeme =
857: d_es_allocation_memoire;
858: return;
859: }
860:
861: (*((struct_liste_chainee *) (*s_element).objet)).suivant = NULL;
862:
863: if (((*((struct_liste_chainee *) (*s_element).objet))
864: .donnee = copie_objet(s_etat_processus,
865: (*l_element_courant).donnee, 'N')) == NULL)
866: {
867: (*s_etat_processus).erreur_systeme =
868: d_es_allocation_memoire;
869: return;
870: }
871:
872: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
873: {
874: (*s_etat_processus).erreur_systeme =
875: d_es_allocation_memoire;
876: return;
877: }
878:
879: if (((*s_format).objet = allocation_maillon(s_etat_processus))
880: == NULL)
881: {
882: (*s_etat_processus).erreur_systeme =
883: d_es_allocation_memoire;
884: return;
885: }
886:
887: (*((struct_liste_chainee *) (*s_format).objet)).suivant = NULL;
888:
889: if (((*((struct_liste_chainee *) (*s_format).objet))
890: .donnee = copie_objet(s_etat_processus,
891: (*l_element_courant_format).donnee, 'N')) == NULL)
892: {
893: (*s_etat_processus).erreur_systeme =
894: d_es_allocation_memoire;
895: return;
896: }
897:
898: if ((chaine = formateur_fichier(s_etat_processus,
899: s_element, s_format, 0, 0, ' ',
900: 'F', &longueur_effective, &recursivite)) == NULL)
901: {
902: liberation(s_etat_processus, s_element);
903: liberation(s_etat_processus, s_format);
904: liberation(s_etat_processus, s_objet_argument_2);
905: liberation(s_etat_processus, s_objet_argument_1);
906:
907: return;
908: }
909:
910: liberation(s_etat_processus, s_element);
911: liberation(s_etat_processus, s_format);
912:
913: if ((clef_utf8 = transliteration(s_etat_processus,
914: chaine, d_locale, "UTF-8")) == NULL)
915: {
916: liberation(s_etat_processus, s_objet_argument_2);
917: liberation(s_etat_processus, s_objet_argument_1);
918:
919: return;
920: }
921:
922: free(chaine);
923:
924: // Récupération de l'identifiant de la clef
925:
926: if (alsprintf(&commande, "select id from key where key = "
927: "'%s'", clef_utf8) < 0)
928: {
1.9 bertrand 929: (*s_etat_processus).erreur_systeme =
930: d_es_allocation_memoire;
1.8 bertrand 931: return;
932: }
933:
934: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
935: commande, strlen(commande), &ppStmt, &queue)
936: != SQLITE_OK)
937: {
1.9 bertrand 938: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 939: return;
940: }
941:
1.70 bertrand 942: attente.tv_sec = 0;
943: attente.tv_nsec = GRANULARITE_us * 1000;
944:
945: do
1.8 bertrand 946: {
1.70 bertrand 947: switch(sqlite_status = sqlite3_step(ppStmt))
1.8 bertrand 948: {
1.70 bertrand 949: case SQLITE_ROW:
950: {
951: // Une clef existe.
952:
953: mise_a_jour = d_vrai;
954: break;
955: }
1.8 bertrand 956:
1.70 bertrand 957: case SQLITE_DONE:
958: {
959: // Aucune clef n'existe.
960:
961: mise_a_jour = d_faux;
1.8 bertrand 962:
1.70 bertrand 963: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
964: {
965: (*s_etat_processus).erreur_systeme =
966: d_es_erreur_fichier;
967: return;
968: }
1.8 bertrand 969:
1.70 bertrand 970: free(commande);
1.8 bertrand 971:
1.70 bertrand 972: if (alsprintf(&commande, "insert into key "
973: "(key) values ('%s')", clef_utf8) < 0)
974: {
975: (*s_etat_processus).erreur_systeme =
976: d_es_allocation_memoire;
977: return;
978: }
1.8 bertrand 979:
1.70 bertrand 980: if (sqlite3_prepare_v2((*descripteur)
981: .descripteur_sqlite,
982: commande, strlen(commande), &ppStmt, &queue)
983: != SQLITE_OK)
984: {
985: (*s_etat_processus).erreur_systeme =
986: d_es_erreur_fichier;
987: return;
988: }
1.8 bertrand 989:
1.70 bertrand 990: if (sqlite3_step(ppStmt) != SQLITE_DONE)
991: {
992: (*s_etat_processus).erreur_systeme =
993: d_es_erreur_fichier;
994: return;
995: }
1.8 bertrand 996:
1.70 bertrand 997: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
998: {
999: (*s_etat_processus).erreur_systeme =
1000: d_es_erreur_fichier;
1001: return;
1002: }
1.8 bertrand 1003:
1.70 bertrand 1004: free(commande);
1.8 bertrand 1005:
1.70 bertrand 1006: if (alsprintf(&commande, "select id from key "
1007: "where key = '%s'", clef_utf8) < 0)
1008: {
1009: (*s_etat_processus).erreur_systeme =
1010: d_es_allocation_memoire;
1011: return;
1012: }
1.8 bertrand 1013:
1.70 bertrand 1014: if (sqlite3_prepare_v2((*descripteur)
1015: .descripteur_sqlite,
1016: commande, strlen(commande), &ppStmt, &queue)
1017: != SQLITE_OK)
1018: {
1019: (*s_etat_processus).erreur_systeme =
1020: d_es_erreur_fichier;
1021: return;
1022: }
1.8 bertrand 1023:
1.70 bertrand 1024: break;
1.8 bertrand 1025: }
1026:
1.70 bertrand 1027: case SQLITE_BUSY:
1028: case SQLITE_LOCKED:
1.8 bertrand 1029: {
1.70 bertrand 1030: nanosleep(&attente, NULL);
1031: INCR_GRANULARITE(attente.tv_nsec);
1032: break;
1.8 bertrand 1033: }
1034:
1.70 bertrand 1035: default:
1.8 bertrand 1036: {
1037: (*s_etat_processus).erreur_systeme =
1038: d_es_erreur_fichier;
1039: return;
1040: }
1041: }
1.70 bertrand 1042: } while(sqlite_status != SQLITE_ROW);
1.8 bertrand 1043:
1044: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
1045: {
1.9 bertrand 1046: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1047: return;
1048: }
1049:
1050: id = sqlite3_column_int64(ppStmt, 0);
1051:
1052: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1.6 bertrand 1053: {
1.9 bertrand 1054: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1055: return;
1056: }
1.6 bertrand 1057:
1.8 bertrand 1058: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1059: {
1.9 bertrand 1060: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1061: return;
1062: }
1063:
1064: free(commande);
1065:
1066: // Modification de la clef
1067:
1068: if (mise_a_jour == d_vrai)
1069: {
1070: if (alsprintf(&commande, "update key set key = '%s' where "
1071: "id = %lld", clef_utf8, id) < 0)
1.6 bertrand 1072: {
1.9 bertrand 1073: (*s_etat_processus).erreur_systeme =
1074: d_es_allocation_memoire;
1.6 bertrand 1075: return;
1076: }
1.8 bertrand 1077:
1078: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1079: commande, strlen(commande), &ppStmt, &queue)
1080: != SQLITE_OK)
1081: {
1082: (*s_etat_processus).erreur_systeme =
1083: d_es_erreur_fichier;
1084: return;
1085: }
1086:
1087: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1088: {
1089: (*s_etat_processus).erreur_systeme =
1090: d_es_erreur_fichier;
1091: return;
1092: }
1093:
1094: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1095: {
1096: (*s_etat_processus).erreur_systeme =
1097: d_es_erreur_fichier;
1098: return;
1099: }
1100:
1101: free(commande);
1.6 bertrand 1102: }
1.8 bertrand 1103:
1104: // Effacement de l'enregistrement existant
1105:
1106: if (alsprintf(&commande, "delete from data where "
1107: "key_id = %lld", id) < 0)
1108: {
1.9 bertrand 1109: (*s_etat_processus).erreur_systeme =
1110: d_es_allocation_memoire;
1.8 bertrand 1111: return;
1112: }
1113:
1114: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1115: commande, strlen(commande), &ppStmt, &queue)
1116: != SQLITE_OK)
1117: {
1.9 bertrand 1118: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1119: return;
1120: }
1121:
1122: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1123: {
1.9 bertrand 1124: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1125: return;
1126: }
1127:
1128: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1129: {
1.9 bertrand 1130: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1131: return;
1132: }
1133:
1134: free(commande);
1135:
1136: // Modification ou création d'un nouvel enregistrement
1137:
1138: l_element_courant = (struct_liste_chainee *)
1139: (*s_objet_argument_2).objet;
1140: l_element_courant_format = (struct_liste_chainee *)
1141: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
1142: .format).objet;
1143: compteur = 1;
1144: ordre = 1;
1145:
1146: while((l_element_courant != NULL) &&
1147: (l_element_courant_format != NULL))
1.6 bertrand 1148: {
1.8 bertrand 1149: if (compteur == clef)
1150: {
1151: l_element_courant = (*l_element_courant).suivant;
1152: l_element_courant_format = (*l_element_courant_format)
1153: .suivant;
1154: compteur++;
1155: continue;
1156: }
1157:
1158: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
1159: {
1160: (*s_etat_processus).erreur_systeme =
1161: d_es_allocation_memoire;
1162: return;
1163: }
1164:
1165: if (((*s_element).objet =
1166: allocation_maillon(s_etat_processus)) == NULL)
1167: {
1168: (*s_etat_processus).erreur_systeme =
1169: d_es_allocation_memoire;
1170: return;
1171: }
1172:
1173: (*((struct_liste_chainee *) (*s_element).objet)).suivant
1174: = NULL;
1175:
1176: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
1177: {
1178: (*s_etat_processus).erreur_systeme =
1179: d_es_allocation_memoire;
1180: return;
1181: }
1182:
1183: if (((*s_format).objet =
1184: allocation_maillon(s_etat_processus)) == NULL)
1185: {
1186: (*s_etat_processus).erreur_systeme =
1187: d_es_allocation_memoire;
1188: return;
1189: }
1190:
1191: (*((struct_liste_chainee *) (*s_format).objet)).suivant
1192: = NULL;
1193:
1194: if (((*((struct_liste_chainee *) (*s_element).objet))
1195: .donnee = copie_objet(s_etat_processus,
1196: (*l_element_courant).donnee, 'N')) == NULL)
1197: {
1198: (*s_etat_processus).erreur_systeme =
1199: d_es_allocation_memoire;
1200: return;
1201: }
1202:
1203: if (((*((struct_liste_chainee *) (*s_format).objet))
1204: .donnee = copie_objet(s_etat_processus,
1205: (*l_element_courant_format).donnee, 'N')) == NULL)
1206: {
1207: (*s_etat_processus).erreur_systeme =
1208: d_es_allocation_memoire;
1209: return;
1210: }
1.6 bertrand 1211:
1212: if ((chaine = formateur_fichier(s_etat_processus,
1.8 bertrand 1213: s_element, s_format, 0, 0, ' ',
1.6 bertrand 1214: 'F', &longueur_effective, &recursivite)) == NULL)
1215: {
1.8 bertrand 1216: free(clef_utf8);
1.9 bertrand 1217:
1.8 bertrand 1218: liberation(s_etat_processus, s_element);
1219: liberation(s_etat_processus, s_format);
1.6 bertrand 1220: liberation(s_etat_processus, s_objet_argument_2);
1221: liberation(s_etat_processus, s_objet_argument_1);
1222:
1223: return;
1224: }
1225:
1226: if ((chaine_utf8 = transliteration(s_etat_processus,
1227: chaine, d_locale, "UTF-8")) == NULL)
1228: {
1.8 bertrand 1229: free(clef_utf8);
1.6 bertrand 1230: free(chaine);
1231:
1232: liberation(s_etat_processus, s_objet_argument_2);
1233: liberation(s_etat_processus, s_objet_argument_1);
1234:
1235: return;
1236: }
1237:
1238: free(chaine);
1239:
1.8 bertrand 1240: if (alsprintf(&commande, "insert into data "
1241: "(data, key_id, sequence) values "
1242: "('%s', %lld, %lld)", chaine_utf8, id, ordre) < 0)
1.6 bertrand 1243: {
1.9 bertrand 1244: (*s_etat_processus).erreur_systeme =
1245: d_es_allocation_memoire;
1.6 bertrand 1246: return;
1247: }
1248:
1.8 bertrand 1249: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1250: commande, strlen(commande), &ppStmt, &queue)
1251: != SQLITE_OK)
1252: {
1253: (*s_etat_processus).erreur_systeme =
1254: d_es_erreur_fichier;
1255: return;
1256: }
1257:
1258: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1259: {
1260: (*s_etat_processus).erreur_systeme =
1261: d_es_erreur_fichier;
1262: return;
1263: }
1264:
1265: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1266: {
1267: (*s_etat_processus).erreur_systeme =
1268: d_es_erreur_fichier;
1269: return;
1270: }
1271:
1272: free(commande);
1.6 bertrand 1273: free(chaine_utf8);
1.8 bertrand 1274:
1275: liberation(s_etat_processus, s_element);
1276: liberation(s_etat_processus, s_format);
1277:
1278: l_element_courant = (*l_element_courant).suivant;
1279: l_element_courant_format = (*l_element_courant_format)
1280: .suivant;
1281:
1282: compteur++;
1283: ordre++;
1.6 bertrand 1284: }
1285:
1.8 bertrand 1286: free(clef_utf8);
1.6 bertrand 1287:
1.8 bertrand 1288: if ((l_element_courant != NULL) ||
1289: (l_element_courant_format != NULL))
1.6 bertrand 1290: {
1.8 bertrand 1291: liberation(s_etat_processus, s_objet_argument_1);
1292: liberation(s_etat_processus, s_objet_argument_2);
1.6 bertrand 1293:
1.8 bertrand 1294: (*s_etat_processus).erreur_execution =
1295: d_ex_erreur_format_fichier;
1.6 bertrand 1296: return;
1297: }
1.1 bertrand 1298: }
1299: }
1300: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire
1301: == 'Y')
1302: {
1303: /*
1304: * Fichiers non formatés
1305: */
1306:
1307: if ((chaine = formateur_fichier(s_etat_processus,
1308: s_objet_argument_2, (*((struct_fichier *)
1309: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1310: &longueur_effective, &recursivite)) == NULL)
1311: {
1312: liberation(s_etat_processus, s_objet_argument_2);
1313: liberation(s_etat_processus, s_objet_argument_1);
1314:
1315: return;
1316: }
1317:
1318: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1319: == 'S')
1320: {
1.5 bertrand 1321: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1322:
1323: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
1324: != 0)
1.1 bertrand 1325: {
1326: liberation(s_etat_processus, s_objet_argument_2);
1327: liberation(s_etat_processus, s_objet_argument_1);
1328:
1329: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1330: return;
1331: }
1332:
1333: if (fwrite(chaine, sizeof(unsigned char), longueur_effective,
1.5 bertrand 1334: (*descripteur).descripteur_c) !=
1335: (size_t) longueur_effective)
1.1 bertrand 1336: {
1337: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1338: return;
1339: }
1340: }
1341: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1342: == 'D')
1343: {
1344: }
1345: else
1346: {
1347: /* Fichiers indexés : panique totale ! */
1348: }
1349:
1350: free(chaine);
1351: }
1352: else
1353: {
1354: /*
1355: * Fichiers de type FLOW
1356: */
1.33 bertrand 1357:
1358: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1359: == 'S')
1360: {
1361: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1362:
1.56 bertrand 1363: if ((*s_objet_argument_2).type != LST)
1364: {
1365: liberation(s_etat_processus, s_objet_argument_2);
1366: liberation(s_etat_processus, s_objet_argument_1);
1367:
1368: (*s_etat_processus).erreur_execution =
1369: d_ex_erreur_type_argument;
1370: return;
1371: }
1372:
1373: if ((*((struct_liste_chainee *) (*s_objet_argument_2).objet))
1374: .donnee == NULL)
1375: {
1376: liberation(s_etat_processus, s_objet_argument_2);
1377: liberation(s_etat_processus, s_objet_argument_1);
1378:
1379: (*s_etat_processus).erreur_execution =
1380: d_ex_erreur_type_argument;
1381: return;
1382: }
1383:
1.64 bertrand 1384: l_element_courant = (*s_objet_argument_2).objet;
1385: l_element_courant_format = (struct_liste_chainee *)
1386: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
1387: .format).objet;
1388:
1389: while((l_element_courant != NULL) &&
1390: (l_element_courant_format != NULL))
1.33 bertrand 1391: {
1.64 bertrand 1392: if ((*(*l_element_courant).donnee).type != CHN)
1393: {
1394: liberation(s_etat_processus, s_objet_argument_2);
1395: liberation(s_etat_processus, s_objet_argument_1);
1396:
1397: (*s_etat_processus).erreur_execution =
1398: d_ex_erreur_type_argument;
1399: return;
1400: }
1401:
1402: if ((*(*l_element_courant_format).donnee).type != CHN)
1403: {
1404: liberation(s_etat_processus, s_objet_argument_2);
1405: liberation(s_etat_processus, s_objet_argument_1);
1406:
1407: (*s_etat_processus).erreur_execution =
1408: d_ex_erreur_type_argument;
1409: return;
1410: }
1411:
1412: if ((format_chaine = conversion_majuscule((unsigned char *)
1413: (*(*l_element_courant_format).donnee).objet))
1414: == NULL)
1415: {
1416: (*s_etat_processus).erreur_systeme =
1417: d_es_allocation_memoire;
1418: return;
1419: }
1420:
1421: if (strncmp("LENGTH*(", format_chaine, 8) != 0)
1422: {
1423: free(format_chaine);
1424:
1425: liberation(s_etat_processus, s_objet_argument_2);
1426: liberation(s_etat_processus, s_objet_argument_1);
1427:
1428: (*s_etat_processus).erreur_execution =
1429: d_ex_erreur_format_fichier;
1430: return;
1431: }
1432:
1433: longueur = strlen(format_chaine);
1434:
1.65 bertrand 1435: if (format_chaine[longueur - 1] != ')')
1.64 bertrand 1436: {
1437: free(format_chaine);
1438:
1439: liberation(s_etat_processus, s_objet_argument_2);
1440: liberation(s_etat_processus, s_objet_argument_1);
1441:
1442: (*s_etat_processus).erreur_execution =
1443: d_ex_erreur_format_fichier;
1444: return;
1445: }
1446:
1447: format_chaine[longueur] = d_code_fin_chaine;
1448:
1449: if (format_chaine[8] == '*')
1450: {
1451: format_degenere = d_vrai;
1452: }
1453: else
1454: {
1455: // Détermination de la longueur
1456: format_degenere = d_faux;
1457:
1458: if (sscanf(&(format_chaine[8]), "%ld", &longueur) != 1)
1459: {
1460: free(format_chaine);
1461:
1462: liberation(s_etat_processus, s_objet_argument_2);
1463: liberation(s_etat_processus, s_objet_argument_1);
1.33 bertrand 1464:
1.64 bertrand 1465: (*s_etat_processus).erreur_execution =
1466: d_ex_erreur_format_fichier;
1467: return;
1468: }
1469: }
1.33 bertrand 1470:
1.64 bertrand 1471: free(format_chaine);
1.33 bertrand 1472:
1.64 bertrand 1473: if ((chaine = formateur_flux(s_etat_processus,
1474: (unsigned char *) (*(*l_element_courant).donnee)
1475: .objet, &longueur_effective)) == NULL)
1476: {
1477: (*s_etat_processus).erreur_systeme =
1478: d_es_allocation_memoire;
1479: return;
1480: }
1.33 bertrand 1481:
1.64 bertrand 1482: if ((format_degenere == d_vrai) ||
1483: (longueur_effective < longueur))
1484: {
1485: if (fwrite(chaine, sizeof(unsigned char),
1486: longueur_effective,
1487: (*descripteur).descripteur_c) !=
1488: (size_t) longueur_effective)
1489: {
1490: (*s_etat_processus).erreur_systeme =
1491: d_es_erreur_fichier;
1492: return;
1493: }
1494: }
1495: else
1496: {
1497: if (fwrite(chaine, sizeof(unsigned char),
1498: longueur_effective,
1499: (*descripteur).descripteur_c) !=
1500: (size_t) longueur)
1501: {
1502: (*s_etat_processus).erreur_systeme =
1503: d_es_erreur_fichier;
1504: return;
1505: }
1506: }
1.63 bertrand 1507:
1.64 bertrand 1508: free(chaine);
1.63 bertrand 1509:
1.64 bertrand 1510: l_element_courant = (*l_element_courant).suivant;
1511: l_element_courant_format = (*l_element_courant_format)
1512: .suivant;
1513: }
1.63 bertrand 1514:
1.64 bertrand 1515: if ((l_element_courant_format != NULL) ||
1516: (l_element_courant != NULL))
1.63 bertrand 1517: {
1.64 bertrand 1518: liberation(s_etat_processus, s_objet_argument_2);
1519: liberation(s_etat_processus, s_objet_argument_1);
1520:
1521: (*s_etat_processus).erreur_execution =
1522: d_ex_erreur_format_fichier;
1.63 bertrand 1523: return;
1524: }
1.33 bertrand 1525: }
1526: else
1527: {
1528: liberation(s_etat_processus, s_objet_argument_1);
1529: liberation(s_etat_processus, s_objet_argument_2);
1530:
1531: (*s_etat_processus).erreur_execution =
1532: d_ex_erreur_type_fichier;
1533: return;
1534: }
1.1 bertrand 1535: }
1536: }
1537: else if (((*s_objet_argument_2).type == LST) &&
1538: ((*s_objet_argument_1).type == SCK))
1539: {
1540: /*
1541: * Vérification de l'autorisation d'écriture
1542: */
1543:
1544: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1545: .protection == 'R')
1546: {
1547: liberation(s_etat_processus, s_objet_argument_2);
1548: liberation(s_etat_processus, s_objet_argument_1);
1549:
1550: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
1551: return;
1552: }
1553:
1554: if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire == 'N')
1555: {
1556: /*
1557: * Sockets formatées
1558: */
1559:
1560: if ((chaine = formateur_fichier(s_etat_processus,
1561: s_objet_argument_2, (*((struct_socket *)
1562: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
1563: &longueur_effective, &recursivite)) == NULL)
1564: {
1565: liberation(s_etat_processus, s_objet_argument_2);
1566: liberation(s_etat_processus, s_objet_argument_1);
1567:
1568: return;
1569: }
1.33 bertrand 1570: }
1571: else if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire
1572: == 'Y')
1573: {
1574: /*
1575: * Sockets non formatées
1576: */
1.38 bertrand 1577:
1578: chaine = NULL;
1.33 bertrand 1579: }
1580: else
1581: {
1582: /*
1583: * Sockets de type FLOW
1584: */
1585:
1586: if ((*((*((struct_liste_chainee *) (*s_objet_argument_2).objet))
1587: .donnee)).type != CHN)
1588: {
1589: liberation(s_etat_processus, s_objet_argument_2);
1590: liberation(s_etat_processus, s_objet_argument_1);
1591:
1592: (*s_etat_processus).erreur_execution =
1593: d_ex_erreur_type_argument;
1594: return;
1595: }
1596:
1597: if ((chaine = formateur_flux(s_etat_processus, (unsigned char *)
1598: (*((*((struct_liste_chainee *) (*s_objet_argument_2)
1599: .objet)).donnee)).objet, &longueur_effective)) == NULL)
1600: {
1601: liberation(s_etat_processus, s_objet_argument_2);
1602: liberation(s_etat_processus, s_objet_argument_1);
1603:
1604: return;
1605: }
1606: }
1.1 bertrand 1607:
1.33 bertrand 1608: if ((strcmp((*((struct_socket *) (*s_objet_argument_1).objet)).type,
1609: "STREAM") == 0) || (strcmp((*((struct_socket *)
1610: (*s_objet_argument_1).objet)).type,
1611: "SEQUENTIAL DATAGRAM") == 0))
1612: { // Sockets connectées
1613:
1614: action.sa_handler = SIG_IGN;
1615: action.sa_flags = SA_ONSTACK;
1616:
1617: if (sigaction(SIGPIPE, &action, ®istre) != 0)
1618: {
1619: (*s_etat_processus).erreur_systeme = d_es_signal;
1620: return;
1621: }
1622:
1.51 bertrand 1623: # ifndef SEMAPHORES_NOMMES
1624: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1625: # else
1626: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1627: # endif
1.33 bertrand 1628: {
1629: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1630: {
1631: (*s_etat_processus).erreur_systeme = d_es_signal;
1632: return;
1633: }
1634:
1635: (*s_etat_processus).erreur_systeme = d_es_processus;
1636: return;
1637: }
1.1 bertrand 1638:
1.33 bertrand 1639: if (send((*((struct_socket *) (*s_objet_argument_1).objet))
1640: .socket, chaine, longueur_effective, 0) < 0)
1641: {
1642: ios = errno;
1.1 bertrand 1643:
1.33 bertrand 1644: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1.1 bertrand 1645: {
1646: (*s_etat_processus).erreur_systeme = d_es_signal;
1647: return;
1648: }
1649:
1.51 bertrand 1650: # ifndef SEMAPHORES_NOMMES
1651: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1652: # else
1653: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1654: # endif
1.1 bertrand 1655: {
1.50 bertrand 1656: if (errno != EINTR)
1657: {
1658: (*s_etat_processus).erreur_systeme = d_es_processus;
1659: return;
1660: }
1.33 bertrand 1661: }
1.1 bertrand 1662:
1.33 bertrand 1663: if ((ios == EPIPE) || (ios == ECONNRESET))
1664: {
1665: (*s_etat_processus).erreur_execution =
1666: d_ex_erreur_acces_fichier;
1.1 bertrand 1667: return;
1668: }
1669:
1.33 bertrand 1670: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1671: return;
1672: }
1673:
1.51 bertrand 1674: # ifndef SEMAPHORES_NOMMES
1675: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1676: # else
1677: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1678: # endif
1.33 bertrand 1679: {
1680: if (errno != EINTR)
1.1 bertrand 1681: {
1682: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1683: {
1684: (*s_etat_processus).erreur_systeme = d_es_signal;
1685: return;
1686: }
1687:
1.33 bertrand 1688: (*s_etat_processus).erreur_systeme = d_es_processus;
1689: return;
1690: }
1691: }
1692:
1693: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1694: {
1695: (*s_etat_processus).erreur_systeme = d_es_signal;
1696: return;
1697: }
1698: }
1699: else
1700: { // Sockets non connectées
1701:
1702: /*
1703: * Vérification de l'adresse distante
1704: */
1705:
1706: if (strcmp((*((struct_socket *) (*s_objet_argument_1).objet))
1707: .adresse_distante, "") == 0)
1708: {
1709: liberation(s_etat_processus, s_objet_argument_1);
1710: liberation(s_etat_processus, s_objet_argument_2);
1711:
1712: (*s_etat_processus).erreur_execution =
1713: d_ex_erreur_acces_fichier;
1714: return;
1715: }
1716:
1717: /*
1718: * Création de l'adresse logique
1719: */
1720:
1721: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1722: .domaine == PF_UNIX)
1723: {
1724: adresse_unix.sun_family = AF_UNIX;
1725: strncpy(adresse_unix.sun_path, (*((struct_socket *)
1726: (*s_objet_argument_1).objet)).adresse_distante,
1727: UNIX_PATH_MAX);
1728: adresse_unix.sun_path[UNIX_PATH_MAX - 1] =
1729: d_code_fin_chaine;
1730:
1.51 bertrand 1731: # ifndef SEMAPHORES_NOMMES
1732: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1733: # else
1734: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1735: # endif
1.33 bertrand 1736: {
1737: (*s_etat_processus).erreur_systeme = d_es_processus;
1738: return;
1739: }
1740:
1741: if (sendto((*((struct_socket *)
1742: (*s_objet_argument_1).objet)).socket, chaine,
1743: longueur_effective, 0, (struct sockaddr *)
1744: &adresse_unix, sizeof(adresse_unix)) < 0)
1745: {
1.38 bertrand 1746: ios = errno;
1747:
1.51 bertrand 1748: # ifndef SEMAPHORES_NOMMES
1749: while(sem_wait(&((*s_etat_processus).semaphore_fork))
1750: != 0)
1751: # else
1752: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1753: # endif
1.1 bertrand 1754: {
1.50 bertrand 1755: if (errno != EINTR)
1756: {
1757: (*s_etat_processus).erreur_systeme = d_es_processus;
1758: return;
1759: }
1.1 bertrand 1760: }
1761:
1.34 bertrand 1762: if ((ios == EPIPE) || (ios == ECONNRESET))
1763: {
1764: (*s_etat_processus).erreur_execution =
1765: d_ex_erreur_acces_fichier;
1766: return;
1767: }
1768:
1769:
1770: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.1 bertrand 1771: return;
1772: }
1773:
1.51 bertrand 1774: # ifndef SEMAPHORES_NOMMES
1775: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1776: # else
1777: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1778: # endif
1.1 bertrand 1779: {
1.50 bertrand 1780: if (errno != EINTR)
1781: {
1782: (*s_etat_processus).erreur_systeme = d_es_processus;
1783: return;
1784: }
1.1 bertrand 1785: }
1786: }
1.33 bertrand 1787: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1788: .domaine == PF_INET)
1789: {
1790: if (sscanf((*((struct_socket *)
1791: (*s_objet_argument_1).objet))
1792: .adresse_distante, "%d.%d.%d.%d(%d)",
1793: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1794: &(adresse[3]), &port) == 5)
1795: { // Adresse IPv4
1796: calcul_adresse = 0;
1797: for(i = 0; i < 4; calcul_adresse =
1798: (256 * calcul_adresse) + adresse[i++]);
1799:
1800: memset(&adresse_ipv4, 0, sizeof(adresse_ipv4));
1801: adresse_ipv4.sin_family = AF_INET;
1802: adresse_ipv4.sin_port = htons(port);
1803: adresse_ipv4.sin_addr.s_addr = htonl(calcul_adresse);
1.1 bertrand 1804:
1.51 bertrand 1805: # ifndef SEMAPHORES_NOMMES
1806: if (sem_post(&((*s_etat_processus).semaphore_fork))
1807: != 0)
1808: # else
1809: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1810: # endif
1.1 bertrand 1811: {
1812: (*s_etat_processus).erreur_systeme = d_es_processus;
1813: return;
1814: }
1815:
1816: if (sendto((*((struct_socket *)
1817: (*s_objet_argument_1).objet)).socket, chaine,
1.33 bertrand 1818: longueur_effective, 0, (struct sockaddr *)
1819: &adresse_ipv4, sizeof(adresse_ipv4)) < 0)
1.1 bertrand 1820: {
1.51 bertrand 1821: # ifndef SEMAPHORES_NOMMES
1822: while(sem_wait(&((*s_etat_processus)
1823: .semaphore_fork)) != 0)
1824: # else
1825: while(sem_wait((*s_etat_processus)
1826: .semaphore_fork) != 0)
1827: # endif
1.1 bertrand 1828: {
1.50 bertrand 1829: if (errno != EINTR)
1830: {
1831: (*s_etat_processus).erreur_systeme =
1832: d_es_processus;
1833: return;
1834: }
1.1 bertrand 1835: }
1836:
1837: (*s_etat_processus).erreur_systeme =
1838: d_es_erreur_fichier;
1839: return;
1840: }
1841:
1.51 bertrand 1842: # ifndef SEMAPHORES_NOMMES
1843: while(sem_wait(&((*s_etat_processus).semaphore_fork))
1844: != 0)
1845: # else
1846: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1847: # endif
1.1 bertrand 1848: {
1.50 bertrand 1849: if (errno != EINTR)
1850: {
1851: (*s_etat_processus).erreur_systeme = d_es_processus;
1852: return;
1853: }
1.1 bertrand 1854: }
1855: }
1.33 bertrand 1856: else
1.1 bertrand 1857: {
1.33 bertrand 1858: liberation(s_etat_processus, s_objet_argument_1);
1859: liberation(s_etat_processus, s_objet_argument_2);
1.1 bertrand 1860:
1.33 bertrand 1861: (*s_etat_processus).erreur_execution =
1862: d_ex_erreur_parametre_fichier;
1863: return;
1864: }
1865: }
1866: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1867: .domaine == PF_INET6)
1868: {
1869: if (sscanf((*((struct_socket *) (*s_objet_argument_1)
1870: .objet)).adresse_distante, "%X:%X:%X:%X:%X:"
1871: "%X:%X:%X:%X:%X:%X:%X:%X:%X:%X:%X(%d)",
1872: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1873: &(adresse[3]), &(adresse[4]), &(adresse[5]),
1874: &(adresse[6]), &(adresse[7]), &(adresse[8]),
1875: &(adresse[9]), &(adresse[10]), &(adresse[11]),
1876: &(adresse[12]), &(adresse[13]), &(adresse[14]),
1877: &(adresse[15]), &port)== 17)
1878: { // Adresse IPv6
1879: # ifdef IPV6
1880: memset(&adresse_ipv6, 0, sizeof(adresse_ipv6));
1881: adresse_ipv6.sin6_family = AF_INET6;
1882: adresse_ipv6.sin6_port = htons((uint16_t) port);
1883:
1884: for(i = 0; i < 16;
1885: adresse_ipv6.sin6_addr.s6_addr[i] =
1886: adresse[i], i++);
1.1 bertrand 1887:
1.51 bertrand 1888: # ifndef SEMAPHORES_NOMMES
1889: if (sem_post(&((*s_etat_processus).semaphore_fork))
1890: != 0)
1891: # else
1892: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1893: # endif
1.33 bertrand 1894: {
1895: (*s_etat_processus).erreur_systeme = d_es_processus;
1896: return;
1897: }
1.1 bertrand 1898:
1.33 bertrand 1899: if (sendto((*((struct_socket *)
1900: (*s_objet_argument_1).objet)).socket, chaine,
1901: longueur_effective, 0, (struct sockaddr *)
1902: &adresse_ipv6, sizeof(adresse_ipv6)) < 0)
1903: {
1.51 bertrand 1904: # ifndef SEMAPHORES_NOMMES
1905: while(sem_wait(&((*s_etat_processus)
1906: .semaphore_fork)) != 0)
1907: # else
1908: while(sem_wait((*s_etat_processus)
1909: .semaphore_fork) != 0)
1910: # endif
1.1 bertrand 1911: {
1.50 bertrand 1912: if (errno != EINTR)
1913: {
1914: (*s_etat_processus).erreur_systeme =
1915: d_es_processus;
1916: return;
1917: }
1.1 bertrand 1918: }
1919:
1.33 bertrand 1920: (*s_etat_processus).erreur_systeme =
1921: d_es_erreur_fichier;
1.1 bertrand 1922: return;
1923: }
1924:
1.51 bertrand 1925: # ifndef SEMAPHORES_NOMMES
1926: while(sem_wait(&((*s_etat_processus).semaphore_fork))
1927: != 0)
1928: # else
1929: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1930: # endif
1.33 bertrand 1931: {
1.50 bertrand 1932: if (errno != EINTR)
1933: {
1934: (*s_etat_processus).erreur_systeme =
1935: d_es_processus;
1936: return;
1937: }
1.33 bertrand 1938: }
1939: # else
1940: if ((*s_etat_processus).langue == 'F')
1941: {
1942: printf("+++Attention : Support du protocole"
1943: " IPv6 indisponible\n");
1.1 bertrand 1944: }
1945: else
1946: {
1.33 bertrand 1947: printf("+++Warning : IPv6 support "
1948: "unavailable\n");
1.1 bertrand 1949: }
1.33 bertrand 1950: # endif
1.1 bertrand 1951: }
1.33 bertrand 1952: else
1.1 bertrand 1953: {
1954: liberation(s_etat_processus, s_objet_argument_1);
1955: liberation(s_etat_processus, s_objet_argument_2);
1956:
1957: (*s_etat_processus).erreur_execution =
1958: d_ex_erreur_parametre_fichier;
1959: return;
1960: }
1961: }
1.33 bertrand 1962: else
1963: {
1964: liberation(s_etat_processus, s_objet_argument_1);
1965: liberation(s_etat_processus, s_objet_argument_2);
1.1 bertrand 1966:
1.33 bertrand 1967: (*s_etat_processus).erreur_execution =
1968: d_ex_erreur_parametre_fichier;
1969: return;
1970: }
1.1 bertrand 1971: }
1.33 bertrand 1972:
1973: free(chaine);
1.1 bertrand 1974: }
1975: else
1976: {
1977: liberation(s_etat_processus, s_objet_argument_2);
1978: liberation(s_etat_processus, s_objet_argument_1);
1979:
1980: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1981: return;
1982: }
1983:
1984: liberation(s_etat_processus, s_objet_argument_2);
1985: liberation(s_etat_processus, s_objet_argument_1);
1986:
1987: return;
1988: }
1989:
1990:
1991: /*
1992: ================================================================================
1993: Fonction 'wflock'
1994: ================================================================================
1995: Entrées : pointeur sur une structure struct_processus
1996: --------------------------------------------------------------------------------
1997: Sorties :
1998: --------------------------------------------------------------------------------
1999: Effets de bord : néant
2000: ================================================================================
2001: */
2002:
2003: void
2004: instruction_wflock(struct_processus *s_etat_processus)
2005: {
2006: logical1 drapeau;
2007:
2008: struct flock lock;
2009:
2010: struct timespec attente;
2011:
1.5 bertrand 2012: struct_descripteur_fichier *descripteur;
2013:
1.1 bertrand 2014: struct_objet *s_objet_argument_1;
2015: struct_objet *s_objet_argument_2;
2016:
2017: unsigned char *chaine;
2018: unsigned char registre_instruction_valide;
2019:
2020: attente.tv_sec = 0;
2021: attente.tv_nsec = GRANULARITE_us * 1000;
2022:
2023: (*s_etat_processus).erreur_execution = d_ex;
2024:
2025: if ((*s_etat_processus).affichage_arguments == 'Y')
2026: {
2027: printf("\n WFLOCK ");
2028:
2029: if ((*s_etat_processus).langue == 'F')
2030: {
2031: printf("(attente du positionnement d'un verrou sur un fichier)"
2032: "\n\n");
2033: }
2034: else
2035: {
2036: printf("(wait for file lock)\n\n");
2037: }
2038:
2039: printf(" 2: %s\n", d_FCH);
2040: printf(" 1: %s (READ/WRITE/NONE)\n", d_CHN);
2041:
2042: return;
2043: }
2044: else if ((*s_etat_processus).test_instruction == 'Y')
2045: {
2046: (*s_etat_processus).nombre_arguments = -1;
2047: return;
2048: }
2049:
2050: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2051: {
2052: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
2053: {
2054: return;
2055: }
2056: }
2057:
2058: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2059: &s_objet_argument_1) == d_erreur)
2060: {
2061: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2062: return;
2063: }
2064:
2065: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2066: &s_objet_argument_2) == d_erreur)
2067: {
2068: liberation(s_etat_processus, s_objet_argument_1);
2069:
2070: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2071: return;
2072: }
2073:
2074: if (((*s_objet_argument_2).type == FCH) &&
2075: ((*s_objet_argument_1).type == CHN))
2076: {
2077: drapeau = d_faux;
2078:
2079: do
2080: {
2081: if ((chaine = conversion_majuscule((unsigned char *)
2082: (*s_objet_argument_1).objet)) == NULL)
2083: {
2084: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
2085: return;
2086: }
2087:
2088: if (strcmp(chaine, "WRITE") == 0)
2089: {
2090: lock.l_type = F_WRLCK;
2091: }
2092: else if (strcmp(chaine, "READ") == 0)
2093: {
2094: lock.l_type = F_RDLCK;
2095: }
2096: else if (strcmp(chaine, "NONE") == 0)
2097: {
2098: lock.l_type = F_UNLCK;
2099: }
2100: else
2101: {
2102: free(chaine);
2103:
2104: liberation(s_etat_processus, s_objet_argument_1);
2105: liberation(s_etat_processus, s_objet_argument_2);
2106:
2107: (*s_etat_processus).erreur_execution = d_ex_verrou_indefini;
2108: return;
2109: }
2110:
2111: free(chaine);
2112:
2113: lock.l_whence = SEEK_SET;
2114: lock.l_start = 0;
2115: lock.l_len = 0;
2116: lock.l_pid = getpid();
2117:
2118: if ((descripteur = descripteur_fichier(s_etat_processus,
2119: (struct_fichier *) (*s_objet_argument_2).objet)) == NULL)
2120: {
2121: return;
2122: }
2123:
1.5 bertrand 2124: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
2125: == -1)
1.1 bertrand 2126: {
2127: liberation(s_etat_processus, s_objet_argument_1);
2128: liberation(s_etat_processus, s_objet_argument_2);
2129:
2130: (*s_etat_processus).erreur_execution = d_ex_fichier_verrouille;
2131: return;
2132: }
2133:
1.51 bertrand 2134: # ifndef SEMAPHORES_NOMMES
2135: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2136: # else
2137: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2138: # endif
1.1 bertrand 2139: {
2140: (*s_etat_processus).erreur_systeme = d_es_processus;
2141: return;
2142: }
1.47 bertrand 2143:
1.51 bertrand 2144: # ifndef SEMAPHORES_NOMMES
2145: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
2146: # else
2147: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2148: # endif
1.12 bertrand 2149: {
1.50 bertrand 2150: if (errno != EINTR)
2151: {
2152: (*s_etat_processus).erreur_systeme = d_es_processus;
2153: return;
2154: }
1.12 bertrand 2155: }
1.1 bertrand 2156:
2157: if (lock.l_type == F_UNLCK)
2158: {
2159: drapeau = d_vrai;
2160: }
2161: else
2162: {
2163: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
2164: {
2165: affectation_interruptions_logicielles(s_etat_processus);
2166: }
2167:
2168: if ((*s_etat_processus).nombre_interruptions_en_queue
2169: != 0)
2170: {
2171: registre_instruction_valide =
2172: (*s_etat_processus).instruction_valide;
2173: traitement_interruptions_logicielles(
2174: s_etat_processus);
2175: (*s_etat_processus).instruction_valide =
2176: registre_instruction_valide;
2177: }
2178:
2179: nanosleep(&attente, NULL);
2180: scrutation_injection(s_etat_processus);
2181:
2182: INCR_GRANULARITE(attente.tv_nsec);
2183: }
2184: } while((drapeau == d_faux) && ((*s_etat_processus)
2185: .var_volatile_requete_arret != -1));
2186: }
2187: else
2188: {
2189: liberation(s_etat_processus, s_objet_argument_1);
2190: liberation(s_etat_processus, s_objet_argument_2);
2191:
2192: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2193: return;
2194: }
2195:
2196: return;
2197: }
2198:
2199:
2200: /*
2201: ================================================================================
2202: Fonction 'wfproc'
2203: ================================================================================
2204: Entrées : pointeur sur une structure struct_processus
2205: --------------------------------------------------------------------------------
2206: Sorties :
2207: --------------------------------------------------------------------------------
2208: Effets de bord : néant
2209: ================================================================================
2210: */
2211:
2212: void
2213: instruction_wfproc(struct_processus *s_etat_processus)
2214: {
2215: logical1 drapeau_fin;
2216:
2217: struct_liste_chainee *l_element_courant;
2218:
2219: struct_objet *s_objet_argument;
2220:
2221: struct timespec attente;
2222:
2223: unsigned char registre_instruction_valide;
2224:
2225: (*s_etat_processus).erreur_execution = d_ex;
2226:
2227: attente.tv_sec = 0;
2228: attente.tv_nsec = GRANULARITE_us * 1000;
2229:
2230: if ((*s_etat_processus).affichage_arguments == 'Y')
2231: {
2232: printf("\n WFPROC ");
2233:
2234: if ((*s_etat_processus).langue == 'F')
2235: {
2236: printf("(attente de la fin d'un processus fils)\n\n");
2237: }
2238: else
2239: {
2240: printf("(wait for child process end)\n\n");
2241: }
2242:
2243: printf(" 1: %s\n", d_PRC);
2244:
2245: return;
2246: }
2247: else if ((*s_etat_processus).test_instruction == 'Y')
2248: {
2249: (*s_etat_processus).nombre_arguments = -1;
2250: return;
2251: }
2252:
2253: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2254: {
2255: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2256: {
2257: return;
2258: }
2259: }
2260:
2261: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2262: &s_objet_argument) == d_erreur)
2263: {
2264: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2265: return;
2266: }
2267:
2268: if ((*s_objet_argument).type == PRC)
2269: {
2270: drapeau_fin = d_faux;
2271:
2272: if ((*s_etat_processus).profilage == d_vrai)
2273: {
2274: profilage(s_etat_processus, "Interprocess or interthread "
2275: "communications (WFPROC)");
2276:
2277: if ((*s_etat_processus).erreur_systeme != d_es)
2278: {
2279: return;
2280: }
2281: }
2282:
2283: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2284: {
2285: if ((*s_etat_processus).profilage == d_vrai)
2286: {
2287: profilage(s_etat_processus, NULL);
2288: }
2289:
2290: (*s_etat_processus).erreur_systeme = d_es_processus;
2291: return;
2292: }
2293:
2294: while(drapeau_fin == d_faux)
2295: {
2296: l_element_courant = (struct_liste_chainee *)
2297: (*s_etat_processus).l_base_pile_processus;
2298:
2299: while(l_element_courant != NULL)
2300: {
2301: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2302: .donnee).objet)).thread).processus_detache == d_vrai)
2303: {
2304: if ((*(*((struct_processus_fils *)
2305: (*s_objet_argument).objet)).thread)
2306: .processus_detache == d_vrai)
2307: {
2308: if ((*(*((struct_processus_fils *)
2309: (*(*l_element_courant)
2310: .donnee).objet)).thread).pid ==
2311: (*(*((struct_processus_fils *)
2312: (*s_objet_argument).objet)).thread).pid)
2313: {
2314: break;
2315: }
2316: }
2317: }
2318: else
2319: {
2320: if ((*(*((struct_processus_fils *)
2321: (*s_objet_argument).objet)).thread)
2322: .processus_detache == d_faux)
2323: {
2324: if ((pthread_equal((*(*((struct_processus_fils *)
2325: (*(*l_element_courant).donnee).objet)).thread)
2326: .tid, (*(*((struct_processus_fils *)
2327: (*s_objet_argument).objet)).thread).tid) != 0)
2328: && ((*(*((struct_processus_fils *)
2329: (*(*l_element_courant).donnee).objet)).thread)
2330: .pid == (*(*((struct_processus_fils *)
2331: (*s_objet_argument).objet)).thread).pid))
2332: {
2333: break;
2334: }
2335: }
2336: }
2337:
2338: l_element_courant = (*l_element_courant).suivant;
2339: }
2340:
2341: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2342: {
2343: if ((*s_etat_processus).profilage == d_vrai)
2344: {
2345: profilage(s_etat_processus, NULL);
2346: }
2347:
2348: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2349: {
2350: (*s_etat_processus).erreur_systeme = d_es_processus;
2351: return;
2352: }
2353:
2354: liberation(s_etat_processus, s_objet_argument);
2355: return;
2356: }
2357:
2358: if (l_element_courant == NULL)
2359: {
2360: /*
2361: * Si l_element_courant vaut NULL, le processus n'existe plus.
2362: */
2363:
2364: drapeau_fin = d_vrai;
2365: }
2366: else
2367: {
2368: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2369: .donnee).objet)).thread).processus_detache == d_vrai)
2370: {
1.48 bertrand 2371: if (envoi_signal_processus((*(*((struct_processus_fils *)
1.1 bertrand 2372: (*(*l_element_courant).donnee).objet)).thread).pid,
1.48 bertrand 2373: rpl_signull) != 0)
1.1 bertrand 2374: {
2375: drapeau_fin = d_vrai;
2376: }
2377: else
2378: {
2379: drapeau_fin = d_faux;
2380: }
2381: }
2382: else
2383: {
2384: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2385: (*(*l_element_courant).donnee).objet)).thread)
2386: .mutex)) != 0)
2387: {
2388: if ((*s_etat_processus).profilage == d_vrai)
2389: {
2390: profilage(s_etat_processus, NULL);
2391: }
2392:
2393: (*s_etat_processus).erreur_systeme = d_es_processus;
2394: return;
2395: }
2396:
2397: if ((*(*((struct_processus_fils *)
2398: (*(*l_element_courant).donnee).objet)).thread)
2399: .thread_actif == d_faux)
2400: {
2401: drapeau_fin = d_vrai;
2402: }
2403: else
2404: {
2405: drapeau_fin = d_faux;
2406: }
2407:
2408: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2409: (*(*l_element_courant).donnee).objet)).thread)
2410: .mutex)) != 0)
2411: {
2412: if ((*s_etat_processus).profilage == d_vrai)
2413: {
2414: profilage(s_etat_processus, NULL);
2415: }
2416:
2417: (*s_etat_processus).erreur_systeme = d_es_processus;
2418: return;
2419: }
2420: }
2421:
2422: if (drapeau_fin == d_faux)
2423: {
2424: /*
2425: * Le processus n'est pas terminé
2426: */
2427:
2428: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2429: {
2430: if ((*s_etat_processus).profilage == d_vrai)
2431: {
2432: profilage(s_etat_processus, NULL);
2433: }
2434:
2435: (*s_etat_processus).erreur_systeme =
2436: d_es_processus;
2437: return;
2438: }
2439:
2440: if ((*s_etat_processus).nombre_interruptions_non_affectees
2441: != 0)
2442: {
2443: affectation_interruptions_logicielles(s_etat_processus);
2444: }
2445:
2446: if ((*s_etat_processus).nombre_interruptions_en_queue
2447: != 0)
2448: {
2449: registre_instruction_valide =
2450: (*s_etat_processus).instruction_valide;
2451: traitement_interruptions_logicielles(
2452: s_etat_processus);
2453: (*s_etat_processus).instruction_valide =
2454: registre_instruction_valide;
2455: }
2456:
1.51 bertrand 2457: # ifndef SEMAPHORES_NOMMES
2458: if (sem_post(&((*s_etat_processus).semaphore_fork))
2459: != 0)
2460: # else
2461: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2462: # endif
1.1 bertrand 2463: {
2464: (*s_etat_processus).erreur_systeme = d_es_processus;
2465: return;
2466: }
2467:
2468: nanosleep(&attente, NULL);
2469:
1.51 bertrand 2470: # ifndef SEMAPHORES_NOMMES
2471: while(sem_wait(&((*s_etat_processus).semaphore_fork))
2472: != 0)
2473: # else
2474: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2475: # endif
1.1 bertrand 2476: {
1.50 bertrand 2477: if (errno != EINTR)
2478: {
2479: (*s_etat_processus).erreur_systeme = d_es_processus;
2480: return;
2481: }
1.1 bertrand 2482: }
2483:
2484: scrutation_injection(s_etat_processus);
2485:
2486: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2487: {
2488: if ((*s_etat_processus).profilage == d_vrai)
2489: {
2490: profilage(s_etat_processus, NULL);
2491: }
2492:
2493: (*s_etat_processus).erreur_systeme =
2494: d_es_processus;
2495: return;
2496: }
2497: }
2498: }
2499:
2500: INCR_GRANULARITE(attente.tv_nsec);
2501: }
2502:
2503: if ((*s_etat_processus).profilage == d_vrai)
2504: {
2505: profilage(s_etat_processus, NULL);
2506: }
2507:
2508: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2509: {
2510: (*s_etat_processus).erreur_systeme = d_es_processus;
2511: return;
2512: }
2513: }
2514: else
2515: {
2516: liberation(s_etat_processus, s_objet_argument);
2517:
2518: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2519: return;
2520: }
2521:
2522: liberation(s_etat_processus, s_objet_argument);
2523:
2524: return;
2525: }
2526:
2527:
2528: /*
2529: ================================================================================
2530: Fonction 'wfdata'
2531: ================================================================================
2532: Entrées : pointeur sur une structure struct_processus
2533: --------------------------------------------------------------------------------
2534: Sorties :
2535: --------------------------------------------------------------------------------
2536: Effets de bord : néant
2537: ================================================================================
2538: */
2539:
2540: void
2541: instruction_wfdata(struct_processus *s_etat_processus)
2542: {
2543: logical1 drapeau_fin;
2544:
2545: struct_liste_chainee *l_element_courant;
2546:
2547: struct_objet *s_objet_argument;
2548:
2549: struct timespec attente;
2550:
2551: unsigned char registre_instruction_valide;
2552:
2553: (*s_etat_processus).erreur_execution = d_ex;
2554:
2555: attente.tv_sec = 0;
2556: attente.tv_nsec = GRANULARITE_us * 1000;
2557:
2558: if ((*s_etat_processus).affichage_arguments == 'Y')
2559: {
2560: printf("\n WFDATA ");
2561:
2562: if ((*s_etat_processus).langue == 'F')
2563: {
2564: printf("(attente de données d'un processus fils)\n\n");
2565: }
2566: else
2567: {
2568: printf("(wait for data from child process)\n\n");
2569: }
2570:
2571: printf(" 1: %s\n", d_PRC);
2572:
2573: return;
2574: }
2575: else if ((*s_etat_processus).test_instruction == 'Y')
2576: {
2577: (*s_etat_processus).nombre_arguments = -1;
2578: return;
2579: }
2580:
2581: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2582: {
2583: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2584: {
2585: return;
2586: }
2587: }
2588:
2589: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2590: &s_objet_argument) == d_erreur)
2591: {
2592: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2593: return;
2594: }
2595:
2596: if ((*s_objet_argument).type == PRC)
2597: {
2598: drapeau_fin = d_faux;
2599:
2600: if ((*s_etat_processus).profilage == d_vrai)
2601: {
2602: profilage(s_etat_processus, "Interprocess or interthread "
2603: "communications (WFDATA)");
2604:
2605: if ((*s_etat_processus).erreur_systeme != d_es)
2606: {
2607: return;
2608: }
2609: }
2610:
2611: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2612: {
2613: if ((*s_etat_processus).profilage == d_vrai)
2614: {
2615: profilage(s_etat_processus, NULL);
2616: }
2617:
2618: (*s_etat_processus).erreur_systeme = d_es_processus;
2619: return;
2620: }
2621:
2622: while(drapeau_fin == d_faux)
2623: {
2624: l_element_courant = (struct_liste_chainee *)
2625: (*s_etat_processus).l_base_pile_processus;
2626:
2627: while(l_element_courant != NULL)
2628: {
2629: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2630: .donnee).objet)).thread).processus_detache == d_vrai)
2631: {
2632: if (((*(*((struct_processus_fils *) (*(*l_element_courant)
2633: .donnee).objet)).thread).pid ==
2634: (*(*((struct_processus_fils *)
2635: (*s_objet_argument).objet)).thread).pid)
2636: && ((*(*((struct_processus_fils *)
2637: (*s_objet_argument).objet)).thread)
2638: .processus_detache == d_vrai))
2639: {
2640: break;
2641: }
2642: }
2643: else
2644: {
2645: if ((pthread_equal((*(*((struct_processus_fils *)
2646: (*(*l_element_courant).donnee).objet)).thread).tid,
2647: (*(*((struct_processus_fils *) (*s_objet_argument)
2648: .objet)).thread).tid) != 0) &&
2649: ((*(*((struct_processus_fils *)
2650: (*(*l_element_courant).donnee).objet)).thread).pid
2651: == (*(*((struct_processus_fils *)
2652: (*s_objet_argument).objet)).thread).pid) &&
2653: ((*(*((struct_processus_fils *)
2654: (*s_objet_argument).objet)).thread)
2655: .processus_detache == d_faux))
2656: {
2657: break;
2658: }
2659: }
2660:
2661: l_element_courant = (*l_element_courant).suivant;
2662: }
2663:
2664: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2665: {
2666: if ((*s_etat_processus).profilage == d_vrai)
2667: {
2668: profilage(s_etat_processus, NULL);
2669: }
2670:
2671: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2672: {
2673: (*s_etat_processus).erreur_systeme = d_es_processus;
2674: return;
2675: }
2676:
2677: liberation(s_etat_processus, s_objet_argument);
2678: return;
2679: }
2680:
2681: if (l_element_courant != NULL)
2682: {
2683: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2684: (*(*l_element_courant).donnee).objet)).thread).mutex))
2685: != 0)
2686: {
2687: (*s_etat_processus).erreur_systeme = d_es_processus;
2688: return;
2689: }
2690:
2691: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2692: .donnee).objet)).thread).nombre_objets_dans_pipe != 0)
2693: {
2694: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2695: (*(*l_element_courant).donnee).objet)).thread)
2696: .mutex)) != 0)
2697: {
2698: (*s_etat_processus).erreur_systeme = d_es_processus;
2699: return;
2700: }
2701:
2702: drapeau_fin = d_vrai;
2703: }
2704: else
2705: {
2706: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2707: (*(*l_element_courant).donnee).objet)).thread)
2708: .mutex)) != 0)
2709: {
2710: (*s_etat_processus).erreur_systeme = d_es_processus;
2711: return;
2712: }
2713:
2714: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2715: {
2716: if ((*s_etat_processus).profilage == d_vrai)
2717: {
2718: profilage(s_etat_processus, NULL);
2719: }
2720:
2721: (*s_etat_processus).erreur_systeme =
2722: d_es_processus;
2723: return;
2724: }
2725:
1.51 bertrand 2726: # ifndef SEMAPHORES_NOMMES
2727: if (sem_post(&((*s_etat_processus).semaphore_fork))
2728: != 0)
2729: # else
2730: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2731: # endif
1.12 bertrand 2732: {
2733: (*s_etat_processus).erreur_systeme = d_es_processus;
2734: return;
2735: }
1.1 bertrand 2736:
2737: nanosleep(&attente, NULL);
2738:
1.51 bertrand 2739: # ifndef SEMAPHORES_NOMMES
2740: while(sem_wait(&((*s_etat_processus).semaphore_fork))
2741: != 0)
2742: # else
2743: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2744: # endif
1.1 bertrand 2745: {
1.50 bertrand 2746: if (errno != EINTR)
2747: {
2748: (*s_etat_processus).erreur_systeme = d_es_processus;
2749: return;
2750: }
1.1 bertrand 2751: }
2752:
2753: scrutation_injection(s_etat_processus);
2754:
2755: if ((*s_etat_processus).nombre_interruptions_non_affectees
2756: != 0)
2757: {
2758: affectation_interruptions_logicielles(s_etat_processus);
2759: }
2760:
2761: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2762: {
2763: registre_instruction_valide =
2764: (*s_etat_processus).instruction_valide;
2765: traitement_interruptions_logicielles(s_etat_processus);
2766: (*s_etat_processus).instruction_valide =
2767: registre_instruction_valide;
2768: }
2769:
2770: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2771: {
2772: if ((*s_etat_processus).profilage == d_vrai)
2773: {
2774: profilage(s_etat_processus, NULL);
2775: }
2776:
2777: return;
2778: }
2779:
2780: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2781: {
2782: if ((*s_etat_processus).profilage == d_vrai)
2783: {
2784: profilage(s_etat_processus, NULL);
2785: }
2786:
2787: (*s_etat_processus).erreur_systeme =
2788: d_es_processus;
2789: return;
2790: }
2791: }
2792: }
2793: else
2794: {
2795: drapeau_fin = d_vrai;
2796: (*s_etat_processus).erreur_execution = d_ex_processus;
2797: }
2798:
2799: INCR_GRANULARITE(attente.tv_nsec);
2800: }
2801:
2802: if ((*s_etat_processus).profilage == d_vrai)
2803: {
2804: profilage(s_etat_processus, NULL);
2805: }
2806:
2807: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2808: {
2809: (*s_etat_processus).erreur_systeme = d_es_processus;
2810: return;
2811: }
2812: }
2813: else
2814: {
2815: liberation(s_etat_processus, s_objet_argument);
2816:
2817: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2818: return;
2819: }
2820:
2821: liberation(s_etat_processus, s_objet_argument);
2822:
2823: return;
2824: }
2825:
2826:
2827: /*
2828: ================================================================================
2829: Fonction 'wfsock'
2830: ================================================================================
2831: Entrées : pointeur sur une structure struct_processus
2832: --------------------------------------------------------------------------------
2833: Sorties :
2834: --------------------------------------------------------------------------------
2835: Effets de bord : néant
2836: ================================================================================
2837: */
2838:
2839: void
2840: instruction_wfsock(struct_processus *s_etat_processus)
2841: {
2842: int erreur;
2843:
2844: logical1 drapeau;
2845:
2846: socklen_t longueur;
2847:
2848: struct_liste_chainee *l_element_courant;
2849:
2850: struct_objet *s_objet_argument;
2851: struct_objet *s_objet_resultat;
2852:
1.54 bertrand 2853: struct pollfd s_poll;
2854:
1.1 bertrand 2855: struct sockaddr_in adresse_ipv4;
1.20 bertrand 2856: # ifdef IPV6
1.1 bertrand 2857: struct sockaddr_in6 adresse_ipv6;
1.20 bertrand 2858: # endif
1.1 bertrand 2859:
2860: unsigned long i;
2861:
2862: if ((*s_etat_processus).affichage_arguments == 'Y')
2863: {
2864: printf("\n WFSOCK ");
2865:
2866: if ((*s_etat_processus).langue == 'F')
2867: {
2868: printf("(attente d'une connexion sur une socket)\n\n");
2869: }
2870: else
2871: {
2872: printf("(wait for connection on a socket)\n\n");
2873: }
2874:
2875: printf(" 1: %s\n", d_SCK);
2876: printf("-> 2: %s\n", d_SCK);
2877: printf(" 1: %s\n", d_SCK);
2878:
2879: return;
2880: }
2881: else if ((*s_etat_processus).test_instruction == 'Y')
2882: {
2883: (*s_etat_processus).nombre_arguments = -1;
2884: return;
2885: }
2886:
2887: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2888: {
2889: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2890: {
2891: return;
2892: }
2893: }
2894:
2895: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2896: &s_objet_argument) == d_erreur)
2897: {
2898: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2899: return;
2900: }
2901:
2902: if ((*s_objet_argument).type == SCK)
2903: {
2904: if ((strcmp((*((struct_socket *) (*s_objet_argument).objet)).type,
2905: "STREAM") != 0) && (strcmp((*((struct_socket *)
2906: (*s_objet_argument).objet)).type, "SEQUENTIAL DATAGRAM") != 0))
2907: {
1.54 bertrand 2908: // Mode non connecté : l'attente se fait sur un poll()
2909:
2910: if ((s_objet_resultat = copie_objet(s_etat_processus,
2911: s_objet_argument, 'P')) == NULL)
2912: {
2913: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
2914: return;
2915: }
2916:
2917: s_poll.fd = (*((struct_socket *) (*s_objet_argument).objet)).socket;
2918: s_poll.events = POLLIN;
2919: s_poll.revents = 0;
2920:
1.55 bertrand 2921: do
1.54 bertrand 2922: {
1.55 bertrand 2923: drapeau = d_vrai;
2924:
2925: # ifndef SEMAPHORES_NOMMES
2926: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2927: # else
2928: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2929: # endif
2930: {
2931: (*s_etat_processus).erreur_systeme = d_es_processus;
2932: return;
2933: }
2934:
2935: if (poll(&s_poll, 1, -1) < 0)
2936: {
2937: erreur = errno;
2938:
2939: # ifndef SEMAPHORES_NOMMES
2940: while(sem_wait(&((*s_etat_processus)
2941: .semaphore_fork)) != 0)
2942: # else
2943: while(sem_wait((*s_etat_processus).semaphore_fork)
2944: != 0)
2945: # endif
2946:
2947: if (erreur != EINTR)
2948: {
2949: liberation(s_etat_processus, s_objet_argument);
2950: liberation(s_etat_processus, s_objet_resultat);
2951:
2952: (*s_etat_processus).erreur_execution =
2953: d_ex_erreur_acces_fichier;
2954: return;
2955: }
2956:
2957: scrutation_injection(s_etat_processus);
2958:
2959: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2960: {
2961: drapeau = d_vrai;
2962: }
2963: else
2964: {
2965: drapeau = d_faux;
2966: }
2967: }
2968: else
1.54 bertrand 2969: {
1.55 bertrand 2970: # ifndef SEMAPHORES_NOMMES
2971: while(sem_wait(&((*s_etat_processus)
2972: .semaphore_fork)) != 0)
2973: # else
2974: while(sem_wait((*s_etat_processus).semaphore_fork)
2975: != 0)
2976: # endif
2977: {
2978: if (errno != EINTR)
2979: {
2980: (*s_etat_processus).erreur_systeme =
2981: d_es_processus;
2982: return;
2983: }
2984: }
1.54 bertrand 2985: }
1.55 bertrand 2986: } while(drapeau == d_faux);
1.54 bertrand 2987:
2988: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2989: s_objet_argument) == d_erreur)
2990: {
2991: return;
2992: }
1.1 bertrand 2993:
1.54 bertrand 2994: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2995: s_objet_resultat) == d_erreur)
2996: {
2997: return;
2998: }
1.1 bertrand 2999: }
1.54 bertrand 3000: else
1.1 bertrand 3001: {
1.54 bertrand 3002: // Mode connecté
1.1 bertrand 3003:
1.54 bertrand 3004: if ((s_objet_resultat = copie_objet(s_etat_processus,
3005: s_objet_argument, 'O')) == NULL)
3006: {
3007: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
3008: return;
3009: }
1.1 bertrand 3010:
1.54 bertrand 3011: (*((struct_socket *) (*s_objet_resultat).objet)).effacement = 'N';
3012: (*((struct_socket *) (*s_objet_resultat).objet)).socket_en_ecoute
3013: = 'N';
1.1 bertrand 3014:
1.54 bertrand 3015: if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
3016: PF_INET)
1.1 bertrand 3017: {
1.54 bertrand 3018: longueur = sizeof(adresse_ipv4);
3019:
3020: do
3021: {
3022: drapeau = d_vrai;
1.1 bertrand 3023:
1.51 bertrand 3024: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3025: if (sem_post(&((*s_etat_processus).semaphore_fork))
3026: != 0)
1.51 bertrand 3027: # else
1.54 bertrand 3028: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1.51 bertrand 3029: # endif
1.54 bertrand 3030: {
3031: (*s_etat_processus).erreur_systeme = d_es_processus;
3032: return;
3033: }
1.1 bertrand 3034:
1.54 bertrand 3035: if (((*((struct_socket *) (*s_objet_resultat).objet))
3036: .socket = accept((*((struct_socket *)
3037: (*s_objet_argument).objet)).socket,
3038: (struct sockaddr *) &adresse_ipv4, &longueur))
3039: < 0)
3040: {
3041: erreur = errno;
1.1 bertrand 3042:
1.55 bertrand 3043: # ifndef SEMAPHORES_NOMMES
3044: while(sem_wait(&((*s_etat_processus)
3045: .semaphore_fork)) != 0)
3046: # else
3047: while(sem_wait((*s_etat_processus).semaphore_fork)
3048: != 0)
3049: # endif
1.50 bertrand 3050: {
1.54 bertrand 3051: if (errno != EINTR)
3052: {
3053: (*s_etat_processus).erreur_systeme =
3054: d_es_processus;
3055: return;
3056: }
1.50 bertrand 3057: }
1.1 bertrand 3058:
1.54 bertrand 3059: if (erreur != EINTR)
3060: {
3061: liberation(s_etat_processus, s_objet_argument);
3062: liberation(s_etat_processus, s_objet_resultat);
1.1 bertrand 3063:
1.54 bertrand 3064: (*s_etat_processus).erreur_execution =
3065: d_ex_erreur_acces_fichier;
3066: return;
3067: }
1.1 bertrand 3068:
1.54 bertrand 3069: scrutation_injection(s_etat_processus);
1.1 bertrand 3070:
1.54 bertrand 3071: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3072: {
3073: drapeau = d_vrai;
3074: }
3075: else
3076: {
3077: drapeau = d_faux;
3078: }
1.1 bertrand 3079: }
3080: else
3081: {
1.51 bertrand 3082: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3083: while(sem_wait(&((*s_etat_processus)
3084: .semaphore_fork)) != 0)
1.51 bertrand 3085: # else
1.54 bertrand 3086: while(sem_wait((*s_etat_processus).semaphore_fork)
3087: != 0)
1.51 bertrand 3088: # endif
1.50 bertrand 3089: {
1.54 bertrand 3090: if (errno != EINTR)
3091: {
3092: (*s_etat_processus).erreur_systeme =
3093: d_es_processus;
3094: return;
3095: }
1.50 bertrand 3096: }
1.1 bertrand 3097: }
1.54 bertrand 3098: } while(drapeau == d_faux);
3099:
3100: if (((*((struct_socket *) (*s_objet_resultat).objet))
3101: .adresse_distante = malloc(22 *
3102: sizeof(unsigned char))) == NULL)
3103: {
3104: (*s_etat_processus).erreur_systeme =
3105: d_es_allocation_memoire;
3106: return;
1.1 bertrand 3107: }
3108:
1.54 bertrand 3109: sprintf((*((struct_socket *) (*s_objet_resultat).objet))
3110: .adresse_distante, "%d.%d.%d.%d(%d)",
3111: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 24) & 0xFF,
3112: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 16) & 0xFF,
3113: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 8) & 0xFF,
3114: ntohl(adresse_ipv4.sin_addr.s_addr) & 0xFF,
3115: ntohs(adresse_ipv4.sin_port));
3116: }
3117: else if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
3118: PF_INET6)
1.1 bertrand 3119: {
1.20 bertrand 3120: # ifdef IPV6
1.54 bertrand 3121: longueur = sizeof(adresse_ipv6);
1.1 bertrand 3122:
1.54 bertrand 3123: do
3124: {
3125: drapeau = d_vrai;
1.1 bertrand 3126:
1.51 bertrand 3127: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3128: if (sem_post(&((*s_etat_processus).semaphore_fork))
3129: != 0)
1.51 bertrand 3130: # else
1.54 bertrand 3131: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1.51 bertrand 3132: # endif
1.54 bertrand 3133: {
3134: (*s_etat_processus).erreur_systeme = d_es_processus;
3135: return;
3136: }
1.1 bertrand 3137:
1.54 bertrand 3138: if (((*((struct_socket *) (*s_objet_resultat).objet))
3139: .socket = accept((*((struct_socket *)
3140: (*s_objet_argument).objet)).socket,
3141: (struct sockaddr *) &adresse_ipv6, &longueur)) < 0)
3142: {
3143: erreur = errno;
1.1 bertrand 3144:
1.51 bertrand 3145: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3146: while(sem_wait(&((*s_etat_processus)
3147: .semaphore_fork)) != 0)
1.51 bertrand 3148: # else
1.54 bertrand 3149: while(sem_wait((*s_etat_processus).semaphore_fork)
3150: != 0)
1.51 bertrand 3151: # endif
1.50 bertrand 3152: {
1.54 bertrand 3153: if (errno != EINTR)
3154: {
3155: (*s_etat_processus).erreur_systeme =
3156: d_es_processus;
3157: return;
3158: }
1.50 bertrand 3159: }
1.1 bertrand 3160:
1.54 bertrand 3161: if (erreur != EINTR)
3162: {
3163: liberation(s_etat_processus, s_objet_argument);
3164: liberation(s_etat_processus, s_objet_resultat);
1.1 bertrand 3165:
1.54 bertrand 3166: (*s_etat_processus).erreur_execution =
3167: d_ex_erreur_acces_fichier;
3168: return;
3169: }
1.1 bertrand 3170:
1.54 bertrand 3171: scrutation_injection(s_etat_processus);
1.1 bertrand 3172:
1.54 bertrand 3173: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3174: {
3175: drapeau = d_vrai;
3176: }
3177: else
3178: {
3179: drapeau = d_faux;
3180: }
1.1 bertrand 3181: }
3182: else
3183: {
1.51 bertrand 3184: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3185: while(sem_wait(&((*s_etat_processus)
3186: .semaphore_fork)) != 0)
1.51 bertrand 3187: # else
1.54 bertrand 3188: while(sem_wait((*s_etat_processus).semaphore_fork)
3189: != 0)
1.51 bertrand 3190: # endif
1.50 bertrand 3191: {
1.54 bertrand 3192: if (errno != EINTR)
3193: {
3194: (*s_etat_processus).erreur_systeme =
3195: d_es_processus;
3196: return;
3197: }
1.50 bertrand 3198: }
1.1 bertrand 3199: }
1.54 bertrand 3200: } while(drapeau == d_faux);
3201:
3202: if (((*((struct_socket *) (*s_objet_resultat).objet))
3203: .adresse_distante = malloc(55 *
3204: sizeof(unsigned char))) == NULL)
3205: {
3206: (*s_etat_processus).erreur_systeme =
3207: d_es_allocation_memoire;
3208: return;
1.1 bertrand 3209: }
3210:
1.54 bertrand 3211: (*((struct_socket *) (*s_objet_resultat).objet))
3212: .adresse_distante = d_code_fin_chaine;
1.1 bertrand 3213:
1.54 bertrand 3214: for(i = 0; i < 16; i++)
3215: {
3216: sprintf((*((struct_socket *) (*s_objet_resultat)
3217: .objet)).adresse_distante, (i == 0) ? "%s%X"
3218: : "%s:%X", (*((struct_socket *) (*s_objet_resultat)
3219: .objet)).adresse_distante,
3220: adresse_ipv6.sin6_addr.s6_addr[i]);
3221: }
1.1 bertrand 3222:
3223: sprintf((*((struct_socket *) (*s_objet_resultat)
1.54 bertrand 3224: .objet)).adresse_distante, "%s(%u)",
1.1 bertrand 3225: (*((struct_socket *) (*s_objet_resultat)
3226: .objet)).adresse_distante,
1.54 bertrand 3227: ntohs(adresse_ipv6.sin6_port));
1.20 bertrand 3228: # else
1.54 bertrand 3229: if ((*s_etat_processus).langue == 'F')
3230: {
3231: printf("+++Attention : Support du protocole"
3232: " IPv6 indisponible\n");
3233: }
3234: else
3235: {
3236: printf("+++Warning : IPv6 support "
3237: "unavailable\n");
3238: }
3239: # endif
1.22 bertrand 3240: }
3241: else
3242: {
1.54 bertrand 3243: longueur = 0;
1.1 bertrand 3244:
1.54 bertrand 3245: do
3246: {
3247: drapeau = d_vrai;
1.1 bertrand 3248:
1.51 bertrand 3249: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3250: if (sem_post(&((*s_etat_processus).semaphore_fork))
3251: != 0)
1.51 bertrand 3252: # else
1.54 bertrand 3253: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1.51 bertrand 3254: # endif
1.54 bertrand 3255: {
3256: (*s_etat_processus).erreur_systeme = d_es_processus;
3257: return;
3258: }
1.1 bertrand 3259:
1.54 bertrand 3260: if (((*((struct_socket *) (*s_objet_resultat).objet))
3261: .socket = accept((*((struct_socket *)
3262: (*s_objet_argument).objet)).socket, NULL,
3263: &longueur)) < 0)
3264: {
3265: erreur = errno;
1.1 bertrand 3266:
1.51 bertrand 3267: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3268: while(sem_wait(&((*s_etat_processus)
3269: .semaphore_fork)) != 0)
1.51 bertrand 3270: # else
1.54 bertrand 3271: while(sem_wait((*s_etat_processus).semaphore_fork)
3272: != 0)
1.51 bertrand 3273: # endif
1.50 bertrand 3274: {
1.54 bertrand 3275: if (errno != EINTR)
3276: {
3277: (*s_etat_processus).erreur_systeme =
3278: d_es_processus;
3279: return;
3280: }
1.50 bertrand 3281: }
1.1 bertrand 3282:
1.54 bertrand 3283: if (erreur != EINTR)
3284: {
3285: liberation(s_etat_processus, s_objet_argument);
3286: liberation(s_etat_processus, s_objet_resultat);
1.1 bertrand 3287:
1.54 bertrand 3288: (*s_etat_processus).erreur_execution =
3289: d_ex_erreur_acces_fichier;
3290: return;
3291: }
1.1 bertrand 3292:
1.54 bertrand 3293: scrutation_injection(s_etat_processus);
1.1 bertrand 3294:
1.54 bertrand 3295: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3296: {
3297: drapeau = d_vrai;
3298: }
3299: else
3300: {
3301: drapeau = d_faux;
3302: }
1.1 bertrand 3303: }
3304: else
3305: {
1.51 bertrand 3306: # ifndef SEMAPHORES_NOMMES
1.54 bertrand 3307: while(sem_wait(&((*s_etat_processus)
3308: .semaphore_fork)) != 0)
1.51 bertrand 3309: # else
1.54 bertrand 3310: while(sem_wait((*s_etat_processus).semaphore_fork)
3311: != 0)
1.51 bertrand 3312: # endif
1.50 bertrand 3313: {
1.54 bertrand 3314: if (errno != EINTR)
3315: {
3316: (*s_etat_processus).erreur_systeme =
3317: d_es_processus;
3318: return;
3319: }
1.50 bertrand 3320: }
1.1 bertrand 3321: }
1.54 bertrand 3322: } while(drapeau == d_faux);
3323: }
1.1 bertrand 3324:
1.54 bertrand 3325: // Si accept() renvoie une erreur non récupérée, il ne peut s'agir
3326: // que de EINTR sachant qu'une requête d'arrêt est en court de
3327: // traitement.
1.1 bertrand 3328:
1.54 bertrand 3329: if ((*((struct_socket *) (*s_objet_resultat).objet)).socket >= 0)
3330: {
3331: l_element_courant = (*s_etat_processus).s_sockets;
1.1 bertrand 3332:
1.54 bertrand 3333: if (l_element_courant == NULL)
1.1 bertrand 3334: {
1.54 bertrand 3335: if (((*s_etat_processus).s_sockets =
3336: allocation_maillon(s_etat_processus)) == NULL)
3337: {
3338: (*s_etat_processus).erreur_systeme =
3339: d_es_allocation_memoire;
3340: return;
3341: }
3342:
3343: (*(*s_etat_processus).s_sockets).suivant = NULL;
3344: l_element_courant = (*s_etat_processus).s_sockets;
1.1 bertrand 3345: }
1.54 bertrand 3346: else
3347: {
3348: /*
3349: * Ajout d'un élément à la fin de la liste chaînée
3350: */
1.1 bertrand 3351:
1.54 bertrand 3352: while((*l_element_courant).suivant != NULL)
3353: {
3354: l_element_courant = (*l_element_courant).suivant;
3355: }
3356:
3357: if (((*l_element_courant).suivant =
3358: allocation_maillon(s_etat_processus)) == NULL)
3359: {
3360: (*s_etat_processus).erreur_systeme =
3361: d_es_allocation_memoire;
3362: return;
3363: }
1.1 bertrand 3364:
3365: l_element_courant = (*l_element_courant).suivant;
1.54 bertrand 3366: (*l_element_courant).suivant = NULL;
1.1 bertrand 3367: }
3368:
1.54 bertrand 3369: if (((*l_element_courant).donnee = copie_objet(s_etat_processus,
3370: s_objet_resultat, 'O')) == NULL)
1.1 bertrand 3371: {
3372: (*s_etat_processus).erreur_systeme =
3373: d_es_allocation_memoire;
3374: return;
3375: }
1.54 bertrand 3376: }
1.1 bertrand 3377:
1.54 bertrand 3378: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3379: s_objet_argument) == d_erreur)
3380: {
3381: return;
1.1 bertrand 3382: }
3383:
1.54 bertrand 3384: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3385: s_objet_resultat) == d_erreur)
1.1 bertrand 3386: {
3387: return;
3388: }
3389: }
3390: }
3391: else
3392: {
3393: liberation(s_etat_processus, s_objet_argument);
3394:
3395: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3396: return;
3397: }
3398:
3399: return;
3400: }
3401:
3402:
3403: /*
3404: ================================================================================
3405: Fonction 'wfswi'
3406: ================================================================================
3407: Entrées : pointeur sur une structure struct_processus
3408: --------------------------------------------------------------------------------
3409: Sorties :
3410: --------------------------------------------------------------------------------
3411: Effets de bord : néant
3412: ================================================================================
3413: */
3414:
3415: void
3416: instruction_wfswi(struct_processus *s_etat_processus)
3417: {
3418: integer8 interruption;
3419:
3420: logical1 drapeau_fin;
3421:
3422: struct_objet *s_objet_argument;
3423:
3424: struct timespec attente;
3425:
3426: (*s_etat_processus).erreur_execution = d_ex;
3427:
3428: attente.tv_sec = 0;
3429: attente.tv_nsec = GRANULARITE_us * 1000;
3430:
3431: if ((*s_etat_processus).affichage_arguments == 'Y')
3432: {
3433: printf("\n WFSWI ");
3434:
3435: if ((*s_etat_processus).langue == 'F')
3436: {
3437: printf("(attente d'une interruption)\n\n");
3438: }
3439: else
3440: {
3441: printf("(wait for interrupt)\n\n");
3442: }
3443:
3444: printf(" 1: %s\n", d_INT);
3445:
3446: return;
3447: }
3448: else if ((*s_etat_processus).test_instruction == 'Y')
3449: {
3450: (*s_etat_processus).nombre_arguments = -1;
3451: return;
3452: }
3453:
3454: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3455: {
3456: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
3457: {
3458: return;
3459: }
3460: }
3461:
3462: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3463: &s_objet_argument) == d_erreur)
3464: {
3465: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
3466: return;
3467: }
3468:
3469: if ((*s_objet_argument).type == INT)
3470: {
3471: drapeau_fin = d_faux;
3472:
3473: interruption = (*((integer8 *) (*s_objet_argument).objet));
3474:
3475: if ((interruption < 1) || (interruption > d_NOMBRE_INTERRUPTIONS))
3476: {
3477: liberation(s_etat_processus, s_objet_argument);
3478:
3479: (*s_etat_processus).erreur_execution = d_ex_interruption_invalide;
3480: return;
3481: }
3482:
3483: while(drapeau_fin == d_faux)
3484: {
3485: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3486: {
3487: liberation(s_etat_processus, s_objet_argument);
3488: return;
3489: }
3490:
3491: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3492: {
3493: affectation_interruptions_logicielles(s_etat_processus);
3494: }
3495:
3496: if ((*s_etat_processus).queue_interruptions[interruption - 1] > 0)
3497: {
3498: drapeau_fin = d_vrai;
3499: }
3500: else
3501: {
3502: nanosleep(&attente, NULL);
3503: scrutation_injection(s_etat_processus);
3504: INCR_GRANULARITE(attente.tv_nsec);
3505: }
3506: }
3507: }
3508: else
3509: {
3510: liberation(s_etat_processus, s_objet_argument);
3511:
3512: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3513: return;
3514: }
3515:
3516: liberation(s_etat_processus, s_objet_argument);
3517:
3518: return;
3519: }
3520:
3521:
3522: /*
3523: ================================================================================
3524: Fonction 'wfpoke'
3525: ================================================================================
3526: Entrées : pointeur sur une structure struct_processus
3527: --------------------------------------------------------------------------------
3528: Sorties :
3529: --------------------------------------------------------------------------------
3530: Effets de bord : néant
3531: ================================================================================
3532: */
3533:
3534: void
3535: instruction_wfpoke(struct_processus *s_etat_processus)
3536: {
3537: struct timespec attente;
3538:
3539: unsigned char registre_instruction_valide;
3540:
3541: (*s_etat_processus).erreur_execution = d_ex;
3542:
3543: attente.tv_sec = 0;
3544: attente.tv_nsec = GRANULARITE_us * 1000;
3545:
3546: if ((*s_etat_processus).affichage_arguments == 'Y')
3547: {
3548: printf("\n WFPOKE ");
3549:
3550: if ((*s_etat_processus).langue == 'F')
3551: {
3552: printf("(attente de données en provenance du processus père)\n\n");
3553: printf(" Aucun argument\n");
3554: }
3555: else
3556: {
3557: printf("(wait for data from parent process)\n\n");
3558: printf(" No argument\n");
3559: }
3560:
3561: return;
3562: }
3563: else if ((*s_etat_processus).test_instruction == 'Y')
3564: {
3565: (*s_etat_processus).nombre_arguments = -1;
3566: return;
3567: }
3568:
3569: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3570: {
3571: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3572: {
3573: return;
3574: }
3575: }
3576:
3577: if ((*s_etat_processus).presence_pipes == d_faux)
3578: {
3579: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3580: return;
3581: }
3582:
3583: if ((*s_etat_processus).nombre_objets_injectes > 0)
3584: {
3585: return;
3586: }
3587:
3588: if ((*s_etat_processus).profilage == d_vrai)
3589: {
3590: profilage(s_etat_processus, "Interprocess or interthread "
3591: "communications (WFPOKE)");
3592:
3593: if ((*s_etat_processus).erreur_systeme != d_es)
3594: {
3595: return;
3596: }
3597: }
3598:
3599: do
3600: {
1.51 bertrand 3601: # ifndef SEMAPHORES_NOMMES
3602: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3603: # else
3604: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3605: # endif
1.1 bertrand 3606: {
3607: (*s_etat_processus).erreur_systeme = d_es_processus;
3608: return;
3609: }
3610:
3611: nanosleep(&attente, NULL);
3612:
1.51 bertrand 3613: # ifndef SEMAPHORES_NOMMES
3614: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
3615: # else
3616: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
3617: # endif
1.1 bertrand 3618: {
1.50 bertrand 3619: if (errno != EINTR)
3620: {
3621: (*s_etat_processus).erreur_systeme = d_es_processus;
3622: return;
3623: }
1.1 bertrand 3624: }
3625:
3626: scrutation_injection(s_etat_processus);
3627:
3628: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3629: {
3630: affectation_interruptions_logicielles(s_etat_processus);
3631: }
3632:
3633: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3634: {
3635: registre_instruction_valide =
3636: (*s_etat_processus).instruction_valide;
3637: traitement_interruptions_logicielles(s_etat_processus);
3638: (*s_etat_processus).instruction_valide =
3639: registre_instruction_valide;
3640: }
3641:
3642: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3643: {
3644: if ((*s_etat_processus).profilage == d_vrai)
3645: {
3646: profilage(s_etat_processus, NULL);
3647: }
3648:
3649: return;
3650: }
3651:
3652: INCR_GRANULARITE(attente.tv_nsec);
3653: } while((*s_etat_processus).nombre_objets_injectes == 0);
3654:
3655: return;
3656: }
3657:
3658:
3659: /*
3660: ================================================================================
3661: Fonction 'wfack'
3662: ================================================================================
3663: Entrées : pointeur sur une structure struct_processus
3664: --------------------------------------------------------------------------------
3665: Sorties :
3666: --------------------------------------------------------------------------------
3667: Effets de bord : néant
3668: ================================================================================
3669: */
3670:
3671: void
3672: instruction_wfack(struct_processus *s_etat_processus)
3673: {
3674: struct timespec attente;
3675:
3676: unsigned char registre_instruction_valide;
3677:
3678: (*s_etat_processus).erreur_execution = d_ex;
3679:
3680: attente.tv_sec = 0;
3681: attente.tv_nsec = GRANULARITE_us * 1000;
3682:
3683: if ((*s_etat_processus).affichage_arguments == 'Y')
3684: {
3685: printf("\n WFACK ");
3686:
3687: if ((*s_etat_processus).langue == 'F')
3688: {
3689: printf("(attente des acquittements de lecture)\n\n");
3690: printf(" Aucun argument\n");
3691: }
3692: else
3693: {
3694: printf("(wait for reading of data acknowledgement)\n\n");
3695: printf(" No argument\n");
3696: }
3697:
3698: return;
3699: }
3700: else if ((*s_etat_processus).test_instruction == 'Y')
3701: {
3702: (*s_etat_processus).nombre_arguments = -1;
3703: return;
3704: }
3705:
3706: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3707: {
3708: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3709: {
3710: return;
3711: }
3712: }
3713:
3714: if ((*s_etat_processus).presence_pipes == d_faux)
3715: {
3716: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3717: return;
3718: }
3719:
3720: if ((*s_etat_processus).profilage == d_vrai)
3721: {
3722: profilage(s_etat_processus, "Interprocess or interthread communications"
3723: " (WFACK)");
3724:
3725: if ((*s_etat_processus).erreur_systeme != d_es)
3726: {
3727: return;
3728: }
3729: }
3730:
3731: while((*s_etat_processus).nombre_objets_envoyes_non_lus != 0)
3732: {
3733: scrutation_injection(s_etat_processus);
3734:
3735: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3736: {
3737: affectation_interruptions_logicielles(s_etat_processus);
3738: }
3739:
3740: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3741: {
3742: registre_instruction_valide =
3743: (*s_etat_processus).instruction_valide;
3744: traitement_interruptions_logicielles(s_etat_processus);
3745: (*s_etat_processus).instruction_valide =
3746: registre_instruction_valide;
3747: }
3748:
3749: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3750: {
3751: if ((*s_etat_processus).profilage == d_vrai)
3752: {
3753: profilage(s_etat_processus, NULL);
3754: }
3755:
3756: return;
3757: }
3758:
1.51 bertrand 3759: # ifndef SEMAPHORES_NOMMES
3760: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3761: # else
3762: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3763: # endif
1.12 bertrand 3764: {
3765: (*s_etat_processus).erreur_systeme = d_es_processus;
3766: return;
3767: }
1.1 bertrand 3768:
3769: nanosleep(&attente, NULL);
3770: INCR_GRANULARITE(attente.tv_nsec);
3771:
1.51 bertrand 3772: # ifndef SEMAPHORES_NOMMES
3773: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
3774: # else
3775: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
3776: # endif
1.1 bertrand 3777: {
1.50 bertrand 3778: if (errno != EINTR)
3779: {
3780: (*s_etat_processus).erreur_systeme = d_es_processus;
3781: return;
3782: }
1.1 bertrand 3783: }
3784: }
3785:
3786: if ((*s_etat_processus).profilage == d_vrai)
3787: {
3788: profilage(s_etat_processus, NULL);
3789: }
3790:
3791: return;
3792: }
3793:
3794: // vim: ts=4