1: /*
2: ================================================================================
3: RPL/2 (R) version 4.1.29
4: Copyright (C) 1989-2018 Dr. BERTRAND Joël
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:
23: #include "rpl-conv.h"
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: {
127: # include "garanties-conv.h"
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:
229: if (((*s_objet).type == INT) || ((*s_objet).type == REL))
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 = (time_t) floor((double) attente);
249: temporisation.tv_nsec = (long) ((attente -
250: ((real8) temporisation.tv_sec)) * (integer8) 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: {
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
269: {
270: (*s_etat_processus).erreur_systeme = d_es_processus;
271: return;
272: }
273:
274: code_retour = nanosleep(&temporisation, &temporisation);
275: erreur = errno;
276:
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
282: {
283: if (errno != EINTR)
284: {
285: (*s_etat_processus).erreur_systeme = d_es_processus;
286: return;
287: }
288: }
289:
290: scrutation_injection(s_etat_processus);
291:
292: if (pthread_mutex_lock(&(*s_etat_processus).mutex_interruptions)
293: != 0)
294: {
295: (*s_etat_processus).erreur_systeme = d_es_processus;
296: return;
297: }
298:
299: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
300: {
301: affectation_interruptions_logicielles(s_etat_processus);
302: }
303:
304: if (pthread_mutex_unlock(&(*s_etat_processus).mutex_interruptions)
305: != 0)
306: {
307: (*s_etat_processus).erreur_systeme = d_es_processus;
308: return;
309: }
310:
311: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
312: {
313: traitement_interruptions_logicielles(s_etat_processus);
314: }
315: } while(((code_retour == -1) && (erreur == EINTR))
316: && ((*s_etat_processus).var_volatile_requete_arret == 0));
317:
318: if ((*s_etat_processus).profilage == d_vrai)
319: {
320: profilage(s_etat_processus, NULL);
321: }
322: }
323: else
324: {
325: liberation(s_etat_processus, s_objet);
326:
327: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
328: return;
329: }
330:
331: liberation(s_etat_processus, s_objet);
332:
333: return;
334: }
335:
336:
337: /*
338: ================================================================================
339: Fonction 'wireframe' (passe en mode d'affichage échantillonné)
340: ================================================================================
341: Entrées : structure processus
342: --------------------------------------------------------------------------------
343: Sorties :
344: --------------------------------------------------------------------------------
345: Effets de bord : néant
346: ================================================================================
347: */
348:
349: void
350: instruction_wireframe(struct_processus *s_etat_processus)
351: {
352: (*s_etat_processus).erreur_execution = d_ex;
353:
354: if ((*s_etat_processus).affichage_arguments == 'Y')
355: {
356: printf("\n WIREFRAME ");
357:
358: if ((*s_etat_processus).langue == 'F')
359: {
360: printf("(graphique tridimensionnel grillagé)\n\n");
361: printf(" Aucun argument\n");
362: }
363: else
364: {
365: printf("(wireframe 3D graph)\n\n");
366: printf(" No argument\n");
367: }
368:
369: return;
370: }
371: else if ((*s_etat_processus).test_instruction == 'Y')
372: {
373: (*s_etat_processus).nombre_arguments = -1;
374: return;
375: }
376:
377: strcpy((*s_etat_processus).type_trace_eq, "GRILLE 3D");
378:
379: return;
380: }
381:
382:
383: /*
384: ================================================================================
385: Fonction 'write'
386: ================================================================================
387: Entrées : structure processus
388: --------------------------------------------------------------------------------
389: Sorties :
390: --------------------------------------------------------------------------------
391: Effets de bord : néant
392: ================================================================================
393: */
394:
395: void
396: instruction_write(struct_processus *s_etat_processus)
397: {
398: const char *queue;
399:
400: int adresse[16];
401: int port;
402: int sqlite_status;
403:
404: integer8 clef;
405: integer8 compteur;
406: integer8 id;
407: integer8 longueur;
408: integer8 longueur_effective;
409: integer8 ordre;
410: integer8 recursivite;
411:
412: logical1 format_degenere;
413: logical1 format_oriente_ligne;
414: logical1 mise_a_jour;
415:
416: sqlite3_stmt *ppStmt;
417:
418: ssize_t ios;
419:
420: struct_descripteur_fichier *descripteur;
421:
422: struct_liste_chainee *l_element_courant;
423: struct_liste_chainee *l_element_courant_format;
424:
425: struct_objet *s_format;
426: struct_objet *s_element;
427: struct_objet *s_objet_argument_1;
428: struct_objet *s_objet_argument_2;
429: struct_objet *s_objet_argument_3;
430:
431: struct sigaction action;
432: struct sigaction registre;
433:
434: struct sockaddr_in adresse_ipv4;
435: # ifdef IPV6
436: struct sockaddr_in6 adresse_ipv6;
437: # endif
438: struct sockaddr_un adresse_unix;
439:
440: struct flock lock;
441:
442: struct timespec attente;
443:
444: uint32_t calcul_adresse;
445:
446: unsigned char *chaine;
447: unsigned char *chaine_utf8;
448: unsigned char *clef_utf8;
449: unsigned char *commande;
450: unsigned char *format_chaine;
451:
452: unsigned long i;
453:
454: (*s_etat_processus).erreur_execution = d_ex;
455:
456: if ((*s_etat_processus).affichage_arguments == 'Y')
457: {
458: printf("\n WRITE ");
459:
460: if ((*s_etat_processus).langue == 'F')
461: {
462: printf("(écriture d'un enregistrement d'un fichier)\n\n");
463: }
464: else
465: {
466: printf("(write a record of a file)\n\n");
467: }
468:
469: printf(" 2: %s\n", d_LST);
470: printf(" 1: %s, %s\n\n", d_FCH, d_SCK);
471:
472: printf(" 3: %s\n", d_LST);
473: printf(" 2: %s\n", d_INT);
474: printf(" 1: %s\n", d_FCH);
475: return;
476: }
477: else if ((*s_etat_processus).test_instruction == 'Y')
478: {
479: (*s_etat_processus).nombre_arguments = -1;
480: return;
481: }
482:
483: if (test_cfsf(s_etat_processus, 31) == d_vrai)
484: {
485: if ((*s_etat_processus).l_base_pile == NULL)
486: {
487: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
488: return;
489: }
490:
491: if ((*(*(*s_etat_processus).l_base_pile).donnee).type == FCH)
492: {
493: if ((*((struct_fichier *) (*(*(*s_etat_processus).l_base_pile)
494: .donnee).objet)).acces == 'D')
495: {
496: if (empilement_pile_last(s_etat_processus, 3) == d_erreur)
497: {
498: return;
499: }
500: }
501: else
502: {
503: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
504: {
505: return;
506: }
507: }
508: }
509: else
510: {
511: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
512: {
513: return;
514: }
515: }
516: }
517:
518: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
519: &s_objet_argument_1) == d_erreur)
520: {
521: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
522: return;
523: }
524:
525: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
526: &s_objet_argument_2) == d_erreur)
527: {
528: liberation(s_etat_processus, s_objet_argument_1);
529:
530: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
531: return;
532: }
533:
534: if ((*s_objet_argument_1).type == FCH)
535: {
536: if ((descripteur = descripteur_fichier(s_etat_processus,
537: (struct_fichier *) (*s_objet_argument_1).objet)) == NULL)
538: {
539: return;
540: }
541:
542: /*
543: * Vérification des verrous
544: */
545:
546: lock.l_type = F_WRLCK;
547: lock.l_whence = SEEK_SET;
548: lock.l_start = 0;
549: lock.l_len = 0;
550: lock.l_pid = getpid();
551: recursivite = 0;
552:
553: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
554: == -1)
555: {
556: liberation(s_etat_processus, s_objet_argument_2);
557: liberation(s_etat_processus, s_objet_argument_1);
558:
559: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
560: return;
561: }
562:
563: if (lock.l_type != F_UNLCK)
564: {
565: liberation(s_etat_processus, s_objet_argument_2);
566: liberation(s_etat_processus, s_objet_argument_1);
567:
568: (*s_etat_processus).erreur_execution =
569: d_ex_fichier_verrouille;
570: return;
571: }
572:
573: /*
574: * Vérification de l'autorisation d'écriture
575: */
576:
577: if ((*((struct_fichier *) (*s_objet_argument_1).objet))
578: .protection == 'R')
579: {
580: liberation(s_etat_processus, s_objet_argument_2);
581: liberation(s_etat_processus, s_objet_argument_1);
582:
583: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
584: return;
585: }
586:
587: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire == 'N')
588: {
589: /*
590: * Fichiers formatés
591: */
592:
593: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
594: == 'S')
595: {
596: if ((*s_objet_argument_2).type != LST)
597: {
598: liberation(s_etat_processus, s_objet_argument_2);
599: liberation(s_etat_processus, s_objet_argument_1);
600:
601: (*s_etat_processus).erreur_execution =
602: d_ex_erreur_type_argument;
603: return;
604: }
605:
606: if ((chaine = formateur_fichier(s_etat_processus,
607: s_objet_argument_2, (*((struct_fichier *)
608: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
609: &longueur_effective, &recursivite, d_vrai)) == NULL)
610: {
611: liberation(s_etat_processus, s_objet_argument_2);
612: liberation(s_etat_processus, s_objet_argument_1);
613:
614: return;
615: }
616:
617: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
618:
619: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
620: != 0)
621: {
622: liberation(s_etat_processus, s_objet_argument_2);
623: liberation(s_etat_processus, s_objet_argument_1);
624:
625: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
626: return;
627: }
628:
629: if ((chaine_utf8 = transliteration(s_etat_processus,
630: chaine, d_locale, "UTF-8")) == NULL)
631: {
632: free(chaine);
633:
634: liberation(s_etat_processus, s_objet_argument_2);
635: liberation(s_etat_processus, s_objet_argument_1);
636:
637: return;
638: }
639:
640: free(chaine);
641:
642: if (fprintf((*descripteur).descripteur_c, "%s\n", chaine_utf8)
643: < 0)
644: {
645: free(chaine_utf8);
646:
647: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
648: return;
649: }
650:
651: free(chaine_utf8);
652: }
653: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
654: == 'D')
655: {
656: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
657:
658: if ((*s_objet_argument_2).type != INT)
659: {
660: liberation(s_etat_processus, s_objet_argument_2);
661: liberation(s_etat_processus, s_objet_argument_1);
662:
663: (*s_etat_processus).erreur_execution =
664: d_ex_erreur_type_argument;
665: return;
666: }
667:
668: if (depilement(s_etat_processus, &((*s_etat_processus)
669: .l_base_pile), &s_objet_argument_3) == d_erreur)
670: {
671: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
672: return;
673: }
674:
675: if ((*s_objet_argument_3).type != LST)
676: {
677: liberation(s_etat_processus, s_objet_argument_3);
678: liberation(s_etat_processus, s_objet_argument_2);
679: liberation(s_etat_processus, s_objet_argument_1);
680:
681: (*s_etat_processus).erreur_execution =
682: d_ex_erreur_type_argument;
683: return;
684: }
685:
686: // Modification ou création d'un nouvel enregistrement
687:
688: if ((chaine = formateur_fichier(s_etat_processus,
689: s_objet_argument_3, (*((struct_fichier *)
690: (*s_objet_argument_1).objet)).format, 0, 0, ' ',
691: 'F', &longueur_effective, &recursivite, d_vrai))
692: == NULL)
693: {
694: liberation(s_etat_processus, s_objet_argument_3);
695: liberation(s_etat_processus, s_objet_argument_2);
696: liberation(s_etat_processus, s_objet_argument_1);
697:
698: return;
699: }
700:
701: if ((chaine_utf8 = transliteration(s_etat_processus,
702: chaine, d_locale, "UTF-8")) == NULL)
703: {
704: free(chaine);
705:
706: liberation(s_etat_processus, s_objet_argument_3);
707: liberation(s_etat_processus, s_objet_argument_2);
708: liberation(s_etat_processus, s_objet_argument_1);
709:
710: return;
711: }
712:
713: free(chaine);
714:
715: if (alsprintf(s_etat_processus, &commande,
716: "insert or replace into data "
717: "(id, data) values (%lld, '%s')", (*((integer8 *)
718: (*s_objet_argument_2).objet)), chaine_utf8) < 0)
719: {
720: (*s_etat_processus).erreur_systeme =
721: d_es_allocation_memoire;
722: return;
723: }
724:
725: free(chaine_utf8);
726:
727: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
728: commande, (int) strlen(commande), &ppStmt, &queue)
729: != SQLITE_OK)
730: {
731: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
732: return;
733: }
734:
735: if (sqlite3_step(ppStmt) != SQLITE_DONE)
736: {
737: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
738: return;
739: }
740:
741: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
742: {
743: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
744: return;
745: }
746:
747: liberation(s_etat_processus, s_objet_argument_3);
748: free(commande);
749: }
750: else // Fichiers indexés
751: {
752: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
753:
754: if ((*s_objet_argument_2).type != LST)
755: {
756: liberation(s_etat_processus, s_objet_argument_2);
757: liberation(s_etat_processus, s_objet_argument_1);
758:
759: (*s_etat_processus).erreur_execution =
760: d_ex_erreur_type_argument;
761: return;
762: }
763:
764: // Récupération de la position de la clef
765:
766: if (alsprintf(s_etat_processus, &commande,
767: "select key from control where id = 1") < 0)
768: {
769: (*s_etat_processus).erreur_systeme =
770: d_es_allocation_memoire;
771: return;
772: }
773:
774: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
775: commande, (int) strlen(commande), &ppStmt, &queue)
776: != SQLITE_OK)
777: {
778: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
779: return;
780: }
781:
782: attente.tv_sec = 0;
783: attente.tv_nsec = GRANULARITE_us * 1000;
784:
785: do
786: {
787: sqlite_status = sqlite3_step(ppStmt);
788:
789: if (sqlite_status == SQLITE_ROW)
790: {
791: break;
792: }
793: else if ((sqlite_status == SQLITE_BUSY) ||
794: (sqlite_status == SQLITE_LOCKED))
795: {
796: nanosleep(&attente, NULL);
797: INCR_GRANULARITE(attente.tv_nsec);
798: }
799: else
800: {
801: (*s_etat_processus).erreur_systeme =
802: d_es_erreur_fichier;
803: return;
804: }
805: } while(sqlite_status != SQLITE_ROW);
806:
807: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
808: {
809: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
810: return;
811: }
812:
813: clef = sqlite3_column_int64(ppStmt, 0);
814:
815: if (sqlite3_step(ppStmt) != SQLITE_DONE)
816: {
817: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
818: return;
819: }
820:
821: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
822: {
823: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
824: return;
825: }
826:
827: free(commande);
828:
829: l_element_courant = (struct_liste_chainee *)
830: (*s_objet_argument_2).objet;
831: l_element_courant_format = (struct_liste_chainee *)
832: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
833: .format).objet;
834: compteur = 1;
835:
836: while((l_element_courant != NULL) &&
837: (l_element_courant_format != NULL))
838: {
839: if (compteur == clef)
840: {
841: break;
842: }
843:
844: l_element_courant = (*l_element_courant).suivant;
845: l_element_courant_format = (*l_element_courant_format)
846: .suivant;
847: compteur++;
848: }
849:
850: if ((l_element_courant == NULL) ||
851: (l_element_courant_format == NULL))
852: {
853: (*s_etat_processus).erreur_execution =
854: d_ex_clef_inexistante;
855:
856: liberation(s_etat_processus, s_objet_argument_2);
857: liberation(s_etat_processus, s_objet_argument_1);
858:
859: return;
860: }
861:
862: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
863: {
864: (*s_etat_processus).erreur_systeme =
865: d_es_allocation_memoire;
866: return;
867: }
868:
869: if (((*s_element).objet = allocation_maillon(s_etat_processus))
870: == NULL)
871: {
872: (*s_etat_processus).erreur_systeme =
873: d_es_allocation_memoire;
874: return;
875: }
876:
877: (*((struct_liste_chainee *) (*s_element).objet)).suivant = NULL;
878:
879: if (((*((struct_liste_chainee *) (*s_element).objet))
880: .donnee = copie_objet(s_etat_processus,
881: (*l_element_courant).donnee, 'N')) == NULL)
882: {
883: (*s_etat_processus).erreur_systeme =
884: d_es_allocation_memoire;
885: return;
886: }
887:
888: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
889: {
890: (*s_etat_processus).erreur_systeme =
891: d_es_allocation_memoire;
892: return;
893: }
894:
895: if (((*s_format).objet = allocation_maillon(s_etat_processus))
896: == NULL)
897: {
898: (*s_etat_processus).erreur_systeme =
899: d_es_allocation_memoire;
900: return;
901: }
902:
903: (*((struct_liste_chainee *) (*s_format).objet)).suivant = NULL;
904:
905: if (((*((struct_liste_chainee *) (*s_format).objet))
906: .donnee = copie_objet(s_etat_processus,
907: (*l_element_courant_format).donnee, 'N')) == NULL)
908: {
909: (*s_etat_processus).erreur_systeme =
910: d_es_allocation_memoire;
911: return;
912: }
913:
914: if ((chaine = formateur_fichier(s_etat_processus,
915: s_element, s_format, 0, 0, ' ',
916: 'F', &longueur_effective, &recursivite, d_vrai))
917: == NULL)
918: {
919: liberation(s_etat_processus, s_element);
920: liberation(s_etat_processus, s_format);
921: liberation(s_etat_processus, s_objet_argument_2);
922: liberation(s_etat_processus, s_objet_argument_1);
923:
924: return;
925: }
926:
927: liberation(s_etat_processus, s_element);
928: liberation(s_etat_processus, s_format);
929:
930: if ((clef_utf8 = transliteration(s_etat_processus,
931: chaine, d_locale, "UTF-8")) == NULL)
932: {
933: liberation(s_etat_processus, s_objet_argument_2);
934: liberation(s_etat_processus, s_objet_argument_1);
935:
936: return;
937: }
938:
939: free(chaine);
940:
941: // Récupération de l'identifiant de la clef
942:
943: if (alsprintf(s_etat_processus, &commande,
944: "select id from key where key = '%s'", clef_utf8) < 0)
945: {
946: (*s_etat_processus).erreur_systeme =
947: d_es_allocation_memoire;
948: return;
949: }
950:
951: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
952: commande, (int) strlen(commande), &ppStmt, &queue)
953: != SQLITE_OK)
954: {
955: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
956: return;
957: }
958:
959: attente.tv_sec = 0;
960: attente.tv_nsec = GRANULARITE_us * 1000;
961:
962: do
963: {
964: switch(sqlite_status = sqlite3_step(ppStmt))
965: {
966: case SQLITE_ROW:
967: {
968: // Une clef existe.
969:
970: mise_a_jour = d_vrai;
971: break;
972: }
973:
974: case SQLITE_DONE:
975: {
976: // Aucune clef n'existe.
977:
978: mise_a_jour = d_faux;
979:
980: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
981: {
982: (*s_etat_processus).erreur_systeme =
983: d_es_erreur_fichier;
984: return;
985: }
986:
987: free(commande);
988:
989: if (alsprintf(s_etat_processus, &commande,
990: "insert into key (key) values ('%s')",
991: clef_utf8) < 0)
992: {
993: (*s_etat_processus).erreur_systeme =
994: d_es_allocation_memoire;
995: return;
996: }
997:
998: if (sqlite3_prepare_v2((*descripteur)
999: .descripteur_sqlite, commande,
1000: (int) strlen(commande), &ppStmt, &queue)
1001: != SQLITE_OK)
1002: {
1003: (*s_etat_processus).erreur_systeme =
1004: d_es_erreur_fichier;
1005: return;
1006: }
1007:
1008: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1009: {
1010: (*s_etat_processus).erreur_systeme =
1011: d_es_erreur_fichier;
1012: return;
1013: }
1014:
1015: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1016: {
1017: (*s_etat_processus).erreur_systeme =
1018: d_es_erreur_fichier;
1019: return;
1020: }
1021:
1022: free(commande);
1023:
1024: if (alsprintf(s_etat_processus, &commande,
1025: "select id from key where key = '%s'",
1026: clef_utf8) < 0)
1027: {
1028: (*s_etat_processus).erreur_systeme =
1029: d_es_allocation_memoire;
1030: return;
1031: }
1032:
1033: if (sqlite3_prepare_v2((*descripteur)
1034: .descripteur_sqlite, commande,
1035: (int) strlen(commande), &ppStmt, &queue)
1036: != SQLITE_OK)
1037: {
1038: (*s_etat_processus).erreur_systeme =
1039: d_es_erreur_fichier;
1040: return;
1041: }
1042:
1043: break;
1044: }
1045:
1046: case SQLITE_BUSY:
1047: case SQLITE_LOCKED:
1048: {
1049: nanosleep(&attente, NULL);
1050: INCR_GRANULARITE(attente.tv_nsec);
1051: break;
1052: }
1053:
1054: default:
1055: {
1056: (*s_etat_processus).erreur_systeme =
1057: d_es_erreur_fichier;
1058: return;
1059: }
1060: }
1061: } while(sqlite_status != SQLITE_ROW);
1062:
1063: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
1064: {
1065: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1066: return;
1067: }
1068:
1069: id = sqlite3_column_int64(ppStmt, 0);
1070:
1071: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1072: {
1073: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1074: return;
1075: }
1076:
1077: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1078: {
1079: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1080: return;
1081: }
1082:
1083: free(commande);
1084:
1085: // Modification de la clef
1086:
1087: if (mise_a_jour == d_vrai)
1088: {
1089: if (alsprintf(s_etat_processus, &commande,
1090: "update key set key = '%s' where id = %lld",
1091: clef_utf8, id) < 0)
1092: {
1093: (*s_etat_processus).erreur_systeme =
1094: d_es_allocation_memoire;
1095: return;
1096: }
1097:
1098: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1099: commande, (int) strlen(commande), &ppStmt, &queue)
1100: != SQLITE_OK)
1101: {
1102: (*s_etat_processus).erreur_systeme =
1103: d_es_erreur_fichier;
1104: return;
1105: }
1106:
1107: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1108: {
1109: (*s_etat_processus).erreur_systeme =
1110: d_es_erreur_fichier;
1111: return;
1112: }
1113:
1114: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1115: {
1116: (*s_etat_processus).erreur_systeme =
1117: d_es_erreur_fichier;
1118: return;
1119: }
1120:
1121: free(commande);
1122: }
1123:
1124: // Effacement de l'enregistrement existant
1125:
1126: if (alsprintf(s_etat_processus, &commande,
1127: "delete from data where key_id = %lld", id) < 0)
1128: {
1129: (*s_etat_processus).erreur_systeme =
1130: d_es_allocation_memoire;
1131: return;
1132: }
1133:
1134: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1135: commande, (int) strlen(commande), &ppStmt, &queue)
1136: != SQLITE_OK)
1137: {
1138: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1139: return;
1140: }
1141:
1142: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1143: {
1144: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1145: return;
1146: }
1147:
1148: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1149: {
1150: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1151: return;
1152: }
1153:
1154: free(commande);
1155:
1156: // Modification ou création d'un nouvel enregistrement
1157:
1158: l_element_courant = (struct_liste_chainee *)
1159: (*s_objet_argument_2).objet;
1160: l_element_courant_format = (struct_liste_chainee *)
1161: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
1162: .format).objet;
1163: compteur = 1;
1164: ordre = 1;
1165:
1166: while((l_element_courant != NULL) &&
1167: (l_element_courant_format != NULL))
1168: {
1169: if (compteur == clef)
1170: {
1171: l_element_courant = (*l_element_courant).suivant;
1172: l_element_courant_format = (*l_element_courant_format)
1173: .suivant;
1174: compteur++;
1175: continue;
1176: }
1177:
1178: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
1179: {
1180: (*s_etat_processus).erreur_systeme =
1181: d_es_allocation_memoire;
1182: return;
1183: }
1184:
1185: if (((*s_element).objet =
1186: allocation_maillon(s_etat_processus)) == NULL)
1187: {
1188: (*s_etat_processus).erreur_systeme =
1189: d_es_allocation_memoire;
1190: return;
1191: }
1192:
1193: (*((struct_liste_chainee *) (*s_element).objet)).suivant
1194: = NULL;
1195:
1196: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
1197: {
1198: (*s_etat_processus).erreur_systeme =
1199: d_es_allocation_memoire;
1200: return;
1201: }
1202:
1203: if (((*s_format).objet =
1204: allocation_maillon(s_etat_processus)) == NULL)
1205: {
1206: (*s_etat_processus).erreur_systeme =
1207: d_es_allocation_memoire;
1208: return;
1209: }
1210:
1211: (*((struct_liste_chainee *) (*s_format).objet)).suivant
1212: = NULL;
1213:
1214: if (((*((struct_liste_chainee *) (*s_element).objet))
1215: .donnee = copie_objet(s_etat_processus,
1216: (*l_element_courant).donnee, 'N')) == NULL)
1217: {
1218: (*s_etat_processus).erreur_systeme =
1219: d_es_allocation_memoire;
1220: return;
1221: }
1222:
1223: if (((*((struct_liste_chainee *) (*s_format).objet))
1224: .donnee = copie_objet(s_etat_processus,
1225: (*l_element_courant_format).donnee, 'N')) == NULL)
1226: {
1227: (*s_etat_processus).erreur_systeme =
1228: d_es_allocation_memoire;
1229: return;
1230: }
1231:
1232: if ((chaine = formateur_fichier(s_etat_processus,
1233: s_element, s_format, 0, 0, ' ',
1234: 'F', &longueur_effective, &recursivite, d_vrai))
1235: == NULL)
1236: {
1237: free(clef_utf8);
1238:
1239: liberation(s_etat_processus, s_element);
1240: liberation(s_etat_processus, s_format);
1241: liberation(s_etat_processus, s_objet_argument_2);
1242: liberation(s_etat_processus, s_objet_argument_1);
1243:
1244: return;
1245: }
1246:
1247: if ((chaine_utf8 = transliteration(s_etat_processus,
1248: chaine, d_locale, "UTF-8")) == NULL)
1249: {
1250: free(clef_utf8);
1251: free(chaine);
1252:
1253: liberation(s_etat_processus, s_objet_argument_2);
1254: liberation(s_etat_processus, s_objet_argument_1);
1255:
1256: return;
1257: }
1258:
1259: free(chaine);
1260:
1261: if (alsprintf(s_etat_processus, &commande,
1262: "insert into data (data, key_id, sequence) values "
1263: "('%s', %lld, %lld)", chaine_utf8, id, ordre) < 0)
1264: {
1265: (*s_etat_processus).erreur_systeme =
1266: d_es_allocation_memoire;
1267: return;
1268: }
1269:
1270: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1271: commande, (int) strlen(commande), &ppStmt, &queue)
1272: != SQLITE_OK)
1273: {
1274: (*s_etat_processus).erreur_systeme =
1275: d_es_erreur_fichier;
1276: return;
1277: }
1278:
1279: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1280: {
1281: (*s_etat_processus).erreur_systeme =
1282: d_es_erreur_fichier;
1283: return;
1284: }
1285:
1286: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1287: {
1288: (*s_etat_processus).erreur_systeme =
1289: d_es_erreur_fichier;
1290: return;
1291: }
1292:
1293: free(commande);
1294: free(chaine_utf8);
1295:
1296: liberation(s_etat_processus, s_element);
1297: liberation(s_etat_processus, s_format);
1298:
1299: l_element_courant = (*l_element_courant).suivant;
1300: l_element_courant_format = (*l_element_courant_format)
1301: .suivant;
1302:
1303: compteur++;
1304: ordre++;
1305: }
1306:
1307: free(clef_utf8);
1308:
1309: if ((l_element_courant != NULL) ||
1310: (l_element_courant_format != NULL))
1311: {
1312: liberation(s_etat_processus, s_objet_argument_1);
1313: liberation(s_etat_processus, s_objet_argument_2);
1314:
1315: (*s_etat_processus).erreur_execution =
1316: d_ex_erreur_format_fichier;
1317: return;
1318: }
1319: }
1320: }
1321: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire
1322: == 'Y')
1323: {
1324: /*
1325: * Fichiers non formatés
1326: */
1327:
1328: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1329: == 'S')
1330: {
1331: if ((*s_objet_argument_2).type != LST)
1332: {
1333: liberation(s_etat_processus, s_objet_argument_2);
1334: liberation(s_etat_processus, s_objet_argument_1);
1335:
1336: (*s_etat_processus).erreur_execution =
1337: d_ex_erreur_type_argument;
1338: return;
1339: }
1340:
1341: if ((chaine = formateur_fichier(s_etat_processus,
1342: s_objet_argument_2, (*((struct_fichier *)
1343: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1344: &longueur_effective, &recursivite, d_vrai)) == NULL)
1345: {
1346: liberation(s_etat_processus, s_objet_argument_2);
1347: liberation(s_etat_processus, s_objet_argument_1);
1348:
1349: return;
1350: }
1351:
1352: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1353:
1354: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
1355: != 0)
1356: {
1357: liberation(s_etat_processus, s_objet_argument_2);
1358: liberation(s_etat_processus, s_objet_argument_1);
1359:
1360: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1361: return;
1362: }
1363:
1364: if (fwrite(chaine, sizeof(unsigned char),
1365: (size_t) longueur_effective,
1366: (*descripteur).descripteur_c) !=
1367: (size_t) longueur_effective)
1368: {
1369: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1370: return;
1371: }
1372: }
1373: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1374: == 'D')
1375: {
1376: if ((*s_objet_argument_2).type != INT)
1377: {
1378: liberation(s_etat_processus, s_objet_argument_2);
1379: liberation(s_etat_processus, s_objet_argument_1);
1380:
1381: (*s_etat_processus).erreur_execution =
1382: d_ex_erreur_type_argument;
1383: return;
1384: }
1385:
1386: if (depilement(s_etat_processus, &((*s_etat_processus)
1387: .l_base_pile), &s_objet_argument_3) == d_erreur)
1388: {
1389: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1390: return;
1391: }
1392:
1393: if ((*s_objet_argument_3).type != LST)
1394: {
1395: liberation(s_etat_processus, s_objet_argument_3);
1396: liberation(s_etat_processus, s_objet_argument_2);
1397: liberation(s_etat_processus, s_objet_argument_1);
1398:
1399: (*s_etat_processus).erreur_execution =
1400: d_ex_erreur_type_argument;
1401: return;
1402: }
1403:
1404: if ((chaine = formateur_fichier(s_etat_processus,
1405: s_objet_argument_2, (*((struct_fichier *)
1406: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1407: &longueur_effective, &recursivite, d_faux)) == NULL)
1408: {
1409: liberation(s_etat_processus, s_objet_argument_2);
1410: liberation(s_etat_processus, s_objet_argument_1);
1411:
1412: return;
1413: }
1414: }
1415: else // Fichiers indexés
1416: {
1417: if ((*s_objet_argument_2).type != LST)
1418: {
1419: liberation(s_etat_processus, s_objet_argument_2);
1420: liberation(s_etat_processus, s_objet_argument_1);
1421:
1422: (*s_etat_processus).erreur_execution =
1423: d_ex_erreur_type_argument;
1424: return;
1425: }
1426:
1427: if ((chaine = formateur_fichier(s_etat_processus,
1428: s_objet_argument_2, (*((struct_fichier *)
1429: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1430: &longueur_effective, &recursivite, d_faux)) == NULL)
1431: {
1432: liberation(s_etat_processus, s_objet_argument_2);
1433: liberation(s_etat_processus, s_objet_argument_1);
1434:
1435: return;
1436: }
1437: }
1438:
1439: free(chaine);
1440: }
1441: else
1442: {
1443: /*
1444: * Fichiers de type FLOW
1445: */
1446:
1447: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1448: == 'S')
1449: {
1450: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1451:
1452: if ((*s_objet_argument_2).type != LST)
1453: {
1454: liberation(s_etat_processus, s_objet_argument_2);
1455: liberation(s_etat_processus, s_objet_argument_1);
1456:
1457: (*s_etat_processus).erreur_execution =
1458: d_ex_erreur_type_argument;
1459: return;
1460: }
1461:
1462: if ((*((struct_liste_chainee *) (*s_objet_argument_2).objet))
1463: .donnee == NULL)
1464: {
1465: liberation(s_etat_processus, s_objet_argument_2);
1466: liberation(s_etat_processus, s_objet_argument_1);
1467:
1468: (*s_etat_processus).erreur_execution =
1469: d_ex_erreur_type_argument;
1470: return;
1471: }
1472:
1473: l_element_courant = (*s_objet_argument_2).objet;
1474: l_element_courant_format = (struct_liste_chainee *)
1475: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
1476: .format).objet;
1477:
1478: while((l_element_courant != NULL) &&
1479: (l_element_courant_format != NULL))
1480: {
1481: if ((*(*l_element_courant).donnee).type != CHN)
1482: {
1483: liberation(s_etat_processus, s_objet_argument_2);
1484: liberation(s_etat_processus, s_objet_argument_1);
1485:
1486: (*s_etat_processus).erreur_execution =
1487: d_ex_erreur_type_argument;
1488: return;
1489: }
1490:
1491: if ((*(*l_element_courant_format).donnee).type != CHN)
1492: {
1493: liberation(s_etat_processus, s_objet_argument_2);
1494: liberation(s_etat_processus, s_objet_argument_1);
1495:
1496: (*s_etat_processus).erreur_execution =
1497: d_ex_erreur_type_argument;
1498: return;
1499: }
1500:
1501: if ((format_chaine = conversion_majuscule(s_etat_processus,
1502: (unsigned char *) (*(*l_element_courant_format)
1503: .donnee).objet)) == NULL)
1504: {
1505: (*s_etat_processus).erreur_systeme =
1506: d_es_allocation_memoire;
1507: return;
1508: }
1509:
1510: if (strcmp("LINE*(*)", format_chaine) == 0)
1511: {
1512: format_oriente_ligne = d_vrai;
1513: format_degenere = d_vrai;
1514: }
1515: else
1516: {
1517: format_oriente_ligne = d_faux;
1518:
1519: if (strncmp("LENGTH*(", format_chaine, 8) != 0)
1520: {
1521: free(format_chaine);
1522:
1523: liberation(s_etat_processus, s_objet_argument_2);
1524: liberation(s_etat_processus, s_objet_argument_1);
1525:
1526: (*s_etat_processus).erreur_execution =
1527: d_ex_erreur_format_fichier;
1528: return;
1529: }
1530:
1531: longueur = (integer8) strlen(format_chaine);
1532:
1533: if (format_chaine[longueur - 1] != ')')
1534: {
1535: free(format_chaine);
1536:
1537: liberation(s_etat_processus, s_objet_argument_2);
1538: liberation(s_etat_processus, s_objet_argument_1);
1539:
1540: (*s_etat_processus).erreur_execution =
1541: d_ex_erreur_format_fichier;
1542: return;
1543: }
1544:
1545: format_chaine[longueur] = d_code_fin_chaine;
1546:
1547: if (format_chaine[8] == '*')
1548: {
1549: format_degenere = d_vrai;
1550: }
1551: else
1552: {
1553: // Détermination de la longueur
1554: format_degenere = d_faux;
1555:
1556: if (sscanf(&(format_chaine[8]), "%lld", &longueur)
1557: != 1)
1558: {
1559: free(format_chaine);
1560:
1561: liberation(s_etat_processus,
1562: s_objet_argument_2);
1563: liberation(s_etat_processus,
1564: s_objet_argument_1);
1565:
1566: (*s_etat_processus).erreur_execution =
1567: d_ex_erreur_format_fichier;
1568: return;
1569: }
1570: }
1571: }
1572:
1573: free(format_chaine);
1574:
1575: if ((chaine = formateur_flux(s_etat_processus,
1576: (unsigned char *) (*(*l_element_courant).donnee)
1577: .objet, &longueur_effective)) == NULL)
1578: {
1579: (*s_etat_processus).erreur_systeme =
1580: d_es_allocation_memoire;
1581: return;
1582: }
1583:
1584: if ((format_degenere == d_vrai) ||
1585: (longueur_effective < longueur))
1586: {
1587: if (fwrite(chaine, sizeof(unsigned char),
1588: (size_t) longueur_effective,
1589: (*descripteur).descripteur_c) !=
1590: (size_t) longueur_effective)
1591: {
1592: (*s_etat_processus).erreur_systeme =
1593: d_es_erreur_fichier;
1594: return;
1595: }
1596: }
1597: else
1598: {
1599: if (fwrite(chaine, sizeof(unsigned char),
1600: (size_t) longueur_effective,
1601: (*descripteur).descripteur_c) !=
1602: (size_t) longueur)
1603: {
1604: (*s_etat_processus).erreur_systeme =
1605: d_es_erreur_fichier;
1606: return;
1607: }
1608: }
1609:
1610: free(chaine);
1611:
1612: if (format_oriente_ligne == d_vrai)
1613: {
1614: if (fwrite("\n", 1, 1, (*descripteur).descripteur_c)
1615: != 1)
1616: {
1617: (*s_etat_processus).erreur_systeme =
1618: d_es_erreur_fichier;
1619: return;
1620: }
1621: }
1622:
1623: l_element_courant = (*l_element_courant).suivant;
1624: l_element_courant_format = (*l_element_courant_format)
1625: .suivant;
1626: }
1627:
1628: if ((l_element_courant_format != NULL) ||
1629: (l_element_courant != NULL))
1630: {
1631: liberation(s_etat_processus, s_objet_argument_2);
1632: liberation(s_etat_processus, s_objet_argument_1);
1633:
1634: (*s_etat_processus).erreur_execution =
1635: d_ex_erreur_format_fichier;
1636: return;
1637: }
1638: }
1639: else
1640: {
1641: liberation(s_etat_processus, s_objet_argument_1);
1642: liberation(s_etat_processus, s_objet_argument_2);
1643:
1644: (*s_etat_processus).erreur_execution =
1645: d_ex_erreur_type_fichier;
1646: return;
1647: }
1648: }
1649: }
1650: else if (((*s_objet_argument_2).type == LST) &&
1651: ((*s_objet_argument_1).type == SCK))
1652: {
1653: /*
1654: * Vérification de l'autorisation d'écriture
1655: */
1656:
1657: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1658: .protection == 'R')
1659: {
1660: liberation(s_etat_processus, s_objet_argument_2);
1661: liberation(s_etat_processus, s_objet_argument_1);
1662:
1663: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
1664: return;
1665: }
1666:
1667: if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire == 'N')
1668: {
1669: /*
1670: * Sockets formatées
1671: */
1672:
1673: if ((chaine = formateur_fichier(s_etat_processus,
1674: s_objet_argument_2, (*((struct_socket *)
1675: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
1676: &longueur_effective, &recursivite, d_faux)) == NULL)
1677: {
1678: liberation(s_etat_processus, s_objet_argument_2);
1679: liberation(s_etat_processus, s_objet_argument_1);
1680:
1681: return;
1682: }
1683: }
1684: else if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire
1685: == 'Y')
1686: {
1687: /*
1688: * Sockets non formatées
1689: */
1690:
1691: if ((chaine = formateur_fichier(s_etat_processus,
1692: s_objet_argument_2, (*((struct_socket *)
1693: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1694: &longueur_effective, &recursivite, d_faux)) == NULL)
1695: {
1696: liberation(s_etat_processus, s_objet_argument_2);
1697: liberation(s_etat_processus, s_objet_argument_1);
1698:
1699: return;
1700: }
1701: }
1702: else
1703: {
1704: /*
1705: * Sockets de type FLOW
1706: */
1707:
1708: if ((*((*((struct_liste_chainee *) (*s_objet_argument_2).objet))
1709: .donnee)).type != CHN)
1710: {
1711: liberation(s_etat_processus, s_objet_argument_2);
1712: liberation(s_etat_processus, s_objet_argument_1);
1713:
1714: (*s_etat_processus).erreur_execution =
1715: d_ex_erreur_type_argument;
1716: return;
1717: }
1718:
1719: if ((chaine = formateur_flux(s_etat_processus, (unsigned char *)
1720: (*((*((struct_liste_chainee *) (*s_objet_argument_2)
1721: .objet)).donnee)).objet, &longueur_effective)) == NULL)
1722: {
1723: liberation(s_etat_processus, s_objet_argument_2);
1724: liberation(s_etat_processus, s_objet_argument_1);
1725:
1726: return;
1727: }
1728: }
1729:
1730: if ((strcmp((*((struct_socket *) (*s_objet_argument_1).objet)).type,
1731: "STREAM") == 0) || (strcmp((*((struct_socket *)
1732: (*s_objet_argument_1).objet)).type,
1733: "SEQUENTIAL DATAGRAM") == 0))
1734: { // Sockets connectées
1735:
1736: action.sa_handler = SIG_IGN;
1737: action.sa_flags = SA_ONSTACK;
1738:
1739: if (sigaction(SIGPIPE, &action, ®istre) != 0)
1740: {
1741: (*s_etat_processus).erreur_systeme = d_es_signal;
1742: return;
1743: }
1744:
1745: # ifndef SEMAPHORES_NOMMES
1746: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1747: # else
1748: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1749: # endif
1750: {
1751: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1752: {
1753: (*s_etat_processus).erreur_systeme = d_es_signal;
1754: return;
1755: }
1756:
1757: (*s_etat_processus).erreur_systeme = d_es_processus;
1758: return;
1759: }
1760:
1761: if (send((*((struct_socket *) (*s_objet_argument_1).objet))
1762: .socket, chaine, (size_t) longueur_effective, 0) < 0)
1763: {
1764: ios = errno;
1765:
1766: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1767: {
1768: (*s_etat_processus).erreur_systeme = d_es_signal;
1769: return;
1770: }
1771:
1772: # ifndef SEMAPHORES_NOMMES
1773: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1774: # else
1775: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1776: # endif
1777: {
1778: if (errno != EINTR)
1779: {
1780: (*s_etat_processus).erreur_systeme = d_es_processus;
1781: return;
1782: }
1783: }
1784:
1785: if ((ios == EPIPE) || (ios == ECONNRESET))
1786: {
1787: (*s_etat_processus).erreur_execution =
1788: d_ex_erreur_acces_fichier;
1789: return;
1790: }
1791:
1792: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1793: return;
1794: }
1795:
1796: # ifndef SEMAPHORES_NOMMES
1797: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1798: # else
1799: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1800: # endif
1801: {
1802: if (errno != EINTR)
1803: {
1804: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1805: {
1806: (*s_etat_processus).erreur_systeme = d_es_signal;
1807: return;
1808: }
1809:
1810: (*s_etat_processus).erreur_systeme = d_es_processus;
1811: return;
1812: }
1813: }
1814:
1815: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1816: {
1817: (*s_etat_processus).erreur_systeme = d_es_signal;
1818: return;
1819: }
1820: }
1821: else
1822: { // Sockets non connectées
1823:
1824: /*
1825: * Vérification de l'adresse distante
1826: */
1827:
1828: if (strcmp((*((struct_socket *) (*s_objet_argument_1).objet))
1829: .adresse_distante, "") == 0)
1830: {
1831: liberation(s_etat_processus, s_objet_argument_1);
1832: liberation(s_etat_processus, s_objet_argument_2);
1833:
1834: (*s_etat_processus).erreur_execution =
1835: d_ex_erreur_acces_fichier;
1836: return;
1837: }
1838:
1839: /*
1840: * Création de l'adresse logique
1841: */
1842:
1843: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1844: .domaine == PF_UNIX)
1845: {
1846: adresse_unix.sun_family = AF_UNIX;
1847: strncpy(adresse_unix.sun_path, (*((struct_socket *)
1848: (*s_objet_argument_1).objet)).adresse_distante,
1849: UNIX_PATH_MAX);
1850: adresse_unix.sun_path[UNIX_PATH_MAX - 1] =
1851: d_code_fin_chaine;
1852:
1853: # ifndef SEMAPHORES_NOMMES
1854: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1855: # else
1856: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1857: # endif
1858: {
1859: (*s_etat_processus).erreur_systeme = d_es_processus;
1860: return;
1861: }
1862:
1863: if (sendto((*((struct_socket *)
1864: (*s_objet_argument_1).objet)).socket, chaine,
1865: (size_t) longueur_effective, 0, (struct sockaddr *)
1866: &adresse_unix, sizeof(adresse_unix)) < 0)
1867: {
1868: ios = errno;
1869:
1870: # ifndef SEMAPHORES_NOMMES
1871: while(sem_wait(&((*s_etat_processus).semaphore_fork))
1872: != 0)
1873: # else
1874: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1875: # endif
1876: {
1877: if (errno != EINTR)
1878: {
1879: (*s_etat_processus).erreur_systeme = d_es_processus;
1880: return;
1881: }
1882: }
1883:
1884: if ((ios == EPIPE) || (ios == ECONNRESET))
1885: {
1886: (*s_etat_processus).erreur_execution =
1887: d_ex_erreur_acces_fichier;
1888: return;
1889: }
1890:
1891: if (ios == EMSGSIZE)
1892: {
1893: (*s_etat_processus).erreur_execution =
1894: d_ex_taille_message;
1895: return;
1896: }
1897:
1898: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1899: return;
1900: }
1901:
1902: # ifndef SEMAPHORES_NOMMES
1903: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
1904: # else
1905: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1906: # endif
1907: {
1908: if (errno != EINTR)
1909: {
1910: (*s_etat_processus).erreur_systeme = d_es_processus;
1911: return;
1912: }
1913: }
1914: }
1915: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1916: .domaine == PF_INET)
1917: {
1918: if (sscanf((*((struct_socket *)
1919: (*s_objet_argument_1).objet))
1920: .adresse_distante, "%d.%d.%d.%d(%d)",
1921: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1922: &(adresse[3]), &port) == 5)
1923: { // Adresse IPv4
1924: calcul_adresse = 0;
1925: for(i = 0; i < 4; calcul_adresse =
1926: (256 * calcul_adresse) +
1927: ((unsigned char) adresse[i++]));
1928:
1929: memset(&adresse_ipv4, 0, sizeof(adresse_ipv4));
1930: adresse_ipv4.sin_family = AF_INET;
1931: adresse_ipv4.sin_port = htons((uint16_t) port);
1932: adresse_ipv4.sin_addr.s_addr = htonl(calcul_adresse);
1933:
1934: # ifndef SEMAPHORES_NOMMES
1935: if (sem_post(&((*s_etat_processus).semaphore_fork))
1936: != 0)
1937: # else
1938: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1939: # endif
1940: {
1941: (*s_etat_processus).erreur_systeme = d_es_processus;
1942: return;
1943: }
1944:
1945: if (sendto((*((struct_socket *)
1946: (*s_objet_argument_1).objet)).socket, chaine,
1947: (size_t) longueur_effective, 0, (struct sockaddr *)
1948: &adresse_ipv4, sizeof(adresse_ipv4)) < 0)
1949: {
1950: ios = errno;
1951:
1952: # ifndef SEMAPHORES_NOMMES
1953: while(sem_wait(&((*s_etat_processus)
1954: .semaphore_fork)) != 0)
1955: # else
1956: while(sem_wait((*s_etat_processus)
1957: .semaphore_fork) != 0)
1958: # endif
1959: {
1960: if (errno != EINTR)
1961: {
1962: (*s_etat_processus).erreur_systeme =
1963: d_es_processus;
1964: return;
1965: }
1966: }
1967:
1968: if ((ios == EPIPE) || (ios == ECONNRESET))
1969: {
1970: (*s_etat_processus).erreur_execution =
1971: d_ex_erreur_acces_fichier;
1972: return;
1973: }
1974:
1975: if (ios == EMSGSIZE)
1976: {
1977: (*s_etat_processus).erreur_execution =
1978: d_ex_taille_message;
1979: return;
1980: }
1981:
1982: (*s_etat_processus).erreur_systeme =
1983: d_es_erreur_fichier;
1984: return;
1985: }
1986:
1987: # ifndef SEMAPHORES_NOMMES
1988: while(sem_wait(&((*s_etat_processus).semaphore_fork))
1989: != 0)
1990: # else
1991: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
1992: # endif
1993: {
1994: if (errno != EINTR)
1995: {
1996: (*s_etat_processus).erreur_systeme = d_es_processus;
1997: return;
1998: }
1999: }
2000: }
2001: else
2002: {
2003: liberation(s_etat_processus, s_objet_argument_1);
2004: liberation(s_etat_processus, s_objet_argument_2);
2005:
2006: (*s_etat_processus).erreur_execution =
2007: d_ex_erreur_parametre_fichier;
2008: return;
2009: }
2010: }
2011: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
2012: .domaine == PF_INET6)
2013: {
2014: if (sscanf((*((struct_socket *) (*s_objet_argument_1)
2015: .objet)).adresse_distante, "%X:%X:%X:%X:%X:"
2016: "%X:%X:%X:%X:%X:%X:%X:%X:%X:%X:%X(%d)",
2017: &(adresse[0]), &(adresse[1]), &(adresse[2]),
2018: &(adresse[3]), &(adresse[4]), &(adresse[5]),
2019: &(adresse[6]), &(adresse[7]), &(adresse[8]),
2020: &(adresse[9]), &(adresse[10]), &(adresse[11]),
2021: &(adresse[12]), &(adresse[13]), &(adresse[14]),
2022: &(adresse[15]), &port)== 17)
2023: { // Adresse IPv6
2024: # ifdef IPV6
2025: memset(&adresse_ipv6, 0, sizeof(adresse_ipv6));
2026: adresse_ipv6.sin6_family = AF_INET6;
2027: adresse_ipv6.sin6_port = htons((uint16_t) port);
2028:
2029: for(i = 0; i < 16;
2030: adresse_ipv6.sin6_addr.s6_addr[i] =
2031: (unsigned char) adresse[i], i++);
2032:
2033: # ifndef SEMAPHORES_NOMMES
2034: if (sem_post(&((*s_etat_processus).semaphore_fork))
2035: != 0)
2036: # else
2037: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2038: # endif
2039: {
2040: (*s_etat_processus).erreur_systeme = d_es_processus;
2041: return;
2042: }
2043:
2044: if (sendto((*((struct_socket *)
2045: (*s_objet_argument_1).objet)).socket, chaine,
2046: (size_t) longueur_effective, 0, (struct sockaddr *)
2047: &adresse_ipv6, sizeof(adresse_ipv6)) < 0)
2048: {
2049: ios = errno;
2050:
2051: # ifndef SEMAPHORES_NOMMES
2052: while(sem_wait(&((*s_etat_processus)
2053: .semaphore_fork)) != 0)
2054: # else
2055: while(sem_wait((*s_etat_processus)
2056: .semaphore_fork) != 0)
2057: # endif
2058: {
2059: if (errno != EINTR)
2060: {
2061: (*s_etat_processus).erreur_systeme =
2062: d_es_processus;
2063: return;
2064: }
2065: }
2066:
2067: if ((ios == EPIPE) || (ios == ECONNRESET))
2068: {
2069: (*s_etat_processus).erreur_execution =
2070: d_ex_erreur_acces_fichier;
2071: return;
2072: }
2073:
2074: if (ios == EMSGSIZE)
2075: {
2076: (*s_etat_processus).erreur_execution =
2077: d_ex_taille_message;
2078: return;
2079: }
2080:
2081: (*s_etat_processus).erreur_systeme =
2082: d_es_erreur_fichier;
2083: return;
2084: }
2085:
2086: # ifndef SEMAPHORES_NOMMES
2087: while(sem_wait(&((*s_etat_processus).semaphore_fork))
2088: != 0)
2089: # else
2090: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2091: # endif
2092: {
2093: if (errno != EINTR)
2094: {
2095: (*s_etat_processus).erreur_systeme =
2096: d_es_processus;
2097: return;
2098: }
2099: }
2100: # else
2101: if ((*s_etat_processus).langue == 'F')
2102: {
2103: printf("+++Attention : Support du protocole"
2104: " IPv6 indisponible\n");
2105: }
2106: else
2107: {
2108: printf("+++Warning : IPv6 support "
2109: "unavailable\n");
2110: }
2111: # endif
2112: }
2113: else
2114: {
2115: liberation(s_etat_processus, s_objet_argument_1);
2116: liberation(s_etat_processus, s_objet_argument_2);
2117:
2118: (*s_etat_processus).erreur_execution =
2119: d_ex_erreur_parametre_fichier;
2120: return;
2121: }
2122: }
2123: else
2124: {
2125: liberation(s_etat_processus, s_objet_argument_1);
2126: liberation(s_etat_processus, s_objet_argument_2);
2127:
2128: (*s_etat_processus).erreur_execution =
2129: d_ex_erreur_parametre_fichier;
2130: return;
2131: }
2132: }
2133:
2134: free(chaine);
2135: }
2136: else
2137: {
2138: liberation(s_etat_processus, s_objet_argument_2);
2139: liberation(s_etat_processus, s_objet_argument_1);
2140:
2141: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2142: return;
2143: }
2144:
2145: liberation(s_etat_processus, s_objet_argument_2);
2146: liberation(s_etat_processus, s_objet_argument_1);
2147:
2148: return;
2149: }
2150:
2151:
2152: /*
2153: ================================================================================
2154: Fonction 'wflock'
2155: ================================================================================
2156: Entrées : pointeur sur une structure struct_processus
2157: --------------------------------------------------------------------------------
2158: Sorties :
2159: --------------------------------------------------------------------------------
2160: Effets de bord : néant
2161: ================================================================================
2162: */
2163:
2164: void
2165: instruction_wflock(struct_processus *s_etat_processus)
2166: {
2167: logical1 drapeau;
2168:
2169: struct flock lock;
2170:
2171: struct timespec attente;
2172:
2173: struct_descripteur_fichier *descripteur;
2174:
2175: struct_objet *s_objet_argument_1;
2176: struct_objet *s_objet_argument_2;
2177:
2178: unsigned char *chaine;
2179: unsigned char registre_instruction_valide;
2180:
2181: attente.tv_sec = 0;
2182: attente.tv_nsec = GRANULARITE_us * 1000;
2183:
2184: (*s_etat_processus).erreur_execution = d_ex;
2185:
2186: if ((*s_etat_processus).affichage_arguments == 'Y')
2187: {
2188: printf("\n WFLOCK ");
2189:
2190: if ((*s_etat_processus).langue == 'F')
2191: {
2192: printf("(attente du positionnement d'un verrou sur un fichier)"
2193: "\n\n");
2194: }
2195: else
2196: {
2197: printf("(wait for file lock)\n\n");
2198: }
2199:
2200: printf(" 2: %s\n", d_FCH);
2201: printf(" 1: %s (READ/WRITE/NONE)\n", d_CHN);
2202:
2203: return;
2204: }
2205: else if ((*s_etat_processus).test_instruction == 'Y')
2206: {
2207: (*s_etat_processus).nombre_arguments = -1;
2208: return;
2209: }
2210:
2211: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2212: {
2213: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
2214: {
2215: return;
2216: }
2217: }
2218:
2219: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2220: &s_objet_argument_1) == d_erreur)
2221: {
2222: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2223: return;
2224: }
2225:
2226: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2227: &s_objet_argument_2) == d_erreur)
2228: {
2229: liberation(s_etat_processus, s_objet_argument_1);
2230:
2231: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2232: return;
2233: }
2234:
2235: if (((*s_objet_argument_2).type == FCH) &&
2236: ((*s_objet_argument_1).type == CHN))
2237: {
2238: drapeau = d_faux;
2239:
2240: do
2241: {
2242: if ((chaine = conversion_majuscule(s_etat_processus,
2243: (unsigned char *) (*s_objet_argument_1).objet)) == NULL)
2244: {
2245: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
2246: return;
2247: }
2248:
2249: if (strcmp(chaine, "WRITE") == 0)
2250: {
2251: lock.l_type = F_WRLCK;
2252: }
2253: else if (strcmp(chaine, "READ") == 0)
2254: {
2255: lock.l_type = F_RDLCK;
2256: }
2257: else if (strcmp(chaine, "NONE") == 0)
2258: {
2259: lock.l_type = F_UNLCK;
2260: }
2261: else
2262: {
2263: free(chaine);
2264:
2265: liberation(s_etat_processus, s_objet_argument_1);
2266: liberation(s_etat_processus, s_objet_argument_2);
2267:
2268: (*s_etat_processus).erreur_execution = d_ex_verrou_indefini;
2269: return;
2270: }
2271:
2272: free(chaine);
2273:
2274: lock.l_whence = SEEK_SET;
2275: lock.l_start = 0;
2276: lock.l_len = 0;
2277: lock.l_pid = getpid();
2278:
2279: if ((descripteur = descripteur_fichier(s_etat_processus,
2280: (struct_fichier *) (*s_objet_argument_2).objet)) == NULL)
2281: {
2282: return;
2283: }
2284:
2285: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
2286: == -1)
2287: {
2288: liberation(s_etat_processus, s_objet_argument_1);
2289: liberation(s_etat_processus, s_objet_argument_2);
2290:
2291: (*s_etat_processus).erreur_execution = d_ex_fichier_verrouille;
2292: return;
2293: }
2294:
2295: # ifndef SEMAPHORES_NOMMES
2296: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2297: # else
2298: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2299: # endif
2300: {
2301: (*s_etat_processus).erreur_systeme = d_es_processus;
2302: return;
2303: }
2304:
2305: # ifndef SEMAPHORES_NOMMES
2306: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
2307: # else
2308: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2309: # endif
2310: {
2311: if (errno != EINTR)
2312: {
2313: (*s_etat_processus).erreur_systeme = d_es_processus;
2314: return;
2315: }
2316: }
2317:
2318: if (lock.l_type == F_UNLCK)
2319: {
2320: drapeau = d_vrai;
2321: }
2322: else
2323: {
2324: if (pthread_mutex_lock(&(*s_etat_processus).mutex_interruptions)
2325: != 0)
2326: {
2327: (*s_etat_processus).erreur_systeme = d_es_processus;
2328: return;
2329: }
2330:
2331: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
2332: {
2333: affectation_interruptions_logicielles(s_etat_processus);
2334: }
2335:
2336: if (pthread_mutex_unlock(&(*s_etat_processus)
2337: .mutex_interruptions) != 0)
2338: {
2339: (*s_etat_processus).erreur_systeme = d_es_processus;
2340: return;
2341: }
2342:
2343: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2344: {
2345: registre_instruction_valide =
2346: (*s_etat_processus).instruction_valide;
2347: traitement_interruptions_logicielles(
2348: s_etat_processus);
2349: (*s_etat_processus).instruction_valide =
2350: registre_instruction_valide;
2351: }
2352:
2353: nanosleep(&attente, NULL);
2354: scrutation_injection(s_etat_processus);
2355:
2356: INCR_GRANULARITE(attente.tv_nsec);
2357: }
2358: } while((drapeau == d_faux) && ((*s_etat_processus)
2359: .var_volatile_requete_arret != -1));
2360: }
2361: else
2362: {
2363: liberation(s_etat_processus, s_objet_argument_1);
2364: liberation(s_etat_processus, s_objet_argument_2);
2365:
2366: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2367: return;
2368: }
2369:
2370: return;
2371: }
2372:
2373:
2374: /*
2375: ================================================================================
2376: Fonction 'wfproc'
2377: ================================================================================
2378: Entrées : pointeur sur une structure struct_processus
2379: --------------------------------------------------------------------------------
2380: Sorties :
2381: --------------------------------------------------------------------------------
2382: Effets de bord : néant
2383: ================================================================================
2384: */
2385:
2386: void
2387: instruction_wfproc(struct_processus *s_etat_processus)
2388: {
2389: logical1 drapeau_fin;
2390:
2391: struct_liste_chainee *l_element_courant;
2392:
2393: struct_objet *s_objet_argument;
2394:
2395: struct timespec attente;
2396:
2397: unsigned char registre_instruction_valide;
2398:
2399: (*s_etat_processus).erreur_execution = d_ex;
2400:
2401: attente.tv_sec = 0;
2402: attente.tv_nsec = GRANULARITE_us * 1000;
2403:
2404: if ((*s_etat_processus).affichage_arguments == 'Y')
2405: {
2406: printf("\n WFPROC ");
2407:
2408: if ((*s_etat_processus).langue == 'F')
2409: {
2410: printf("(attente de la fin d'un processus fils)\n\n");
2411: }
2412: else
2413: {
2414: printf("(wait for child process end)\n\n");
2415: }
2416:
2417: printf(" 1: %s\n", d_PRC);
2418:
2419: return;
2420: }
2421: else if ((*s_etat_processus).test_instruction == 'Y')
2422: {
2423: (*s_etat_processus).nombre_arguments = -1;
2424: return;
2425: }
2426:
2427: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2428: {
2429: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2430: {
2431: return;
2432: }
2433: }
2434:
2435: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2436: &s_objet_argument) == d_erreur)
2437: {
2438: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2439: return;
2440: }
2441:
2442: if ((*s_objet_argument).type == PRC)
2443: {
2444: drapeau_fin = d_faux;
2445:
2446: if ((*s_etat_processus).profilage == d_vrai)
2447: {
2448: profilage(s_etat_processus, "Interprocess or interthread "
2449: "communications (WFPROC)");
2450:
2451: if ((*s_etat_processus).erreur_systeme != d_es)
2452: {
2453: return;
2454: }
2455: }
2456:
2457: if (pthread_mutex_lock(&((*s_etat_processus).mutex_pile_processus))
2458: != 0)
2459: {
2460: if ((*s_etat_processus).profilage == d_vrai)
2461: {
2462: profilage(s_etat_processus, NULL);
2463: }
2464:
2465: (*s_etat_processus).erreur_systeme = d_es_processus;
2466: return;
2467: }
2468:
2469: while(drapeau_fin == d_faux)
2470: {
2471: l_element_courant = (struct_liste_chainee *)
2472: (*s_etat_processus).l_base_pile_processus;
2473:
2474: while(l_element_courant != NULL)
2475: {
2476: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2477: .donnee).objet)).thread).processus_detache == d_vrai)
2478: {
2479: if ((*(*((struct_processus_fils *)
2480: (*s_objet_argument).objet)).thread)
2481: .processus_detache == d_vrai)
2482: {
2483: if ((*(*((struct_processus_fils *)
2484: (*(*l_element_courant)
2485: .donnee).objet)).thread).pid ==
2486: (*(*((struct_processus_fils *)
2487: (*s_objet_argument).objet)).thread).pid)
2488: {
2489: break;
2490: }
2491: }
2492: }
2493: else
2494: {
2495: if ((*(*((struct_processus_fils *)
2496: (*s_objet_argument).objet)).thread)
2497: .processus_detache == d_faux)
2498: {
2499: if ((pthread_equal((*(*((struct_processus_fils *)
2500: (*(*l_element_courant).donnee).objet)).thread)
2501: .tid, (*(*((struct_processus_fils *)
2502: (*s_objet_argument).objet)).thread).tid) != 0)
2503: && ((*(*((struct_processus_fils *)
2504: (*(*l_element_courant).donnee).objet)).thread)
2505: .pid == (*(*((struct_processus_fils *)
2506: (*s_objet_argument).objet)).thread).pid))
2507: {
2508: break;
2509: }
2510: }
2511: }
2512:
2513: l_element_courant = (*l_element_courant).suivant;
2514: }
2515:
2516: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2517: {
2518: if ((*s_etat_processus).profilage == d_vrai)
2519: {
2520: profilage(s_etat_processus, NULL);
2521: }
2522:
2523: if (pthread_mutex_unlock(&((*s_etat_processus)
2524: .mutex_pile_processus)) != 0)
2525: {
2526: (*s_etat_processus).erreur_systeme = d_es_processus;
2527: return;
2528: }
2529:
2530: liberation(s_etat_processus, s_objet_argument);
2531: return;
2532: }
2533:
2534: if (l_element_courant == NULL)
2535: {
2536: /*
2537: * Si l_element_courant vaut NULL, le processus n'existe plus.
2538: */
2539:
2540: drapeau_fin = d_vrai;
2541: }
2542: else
2543: {
2544: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2545: .donnee).objet)).thread).processus_detache == d_vrai)
2546: {
2547: if (envoi_signal_processus((*(*((struct_processus_fils *)
2548: (*(*l_element_courant).donnee).objet)).thread).pid,
2549: rpl_signull, d_faux) != 0)
2550: {
2551: drapeau_fin = d_vrai;
2552: }
2553: else
2554: {
2555: drapeau_fin = d_faux;
2556: }
2557: }
2558: else
2559: {
2560: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2561: (*(*l_element_courant).donnee).objet)).thread)
2562: .mutex)) != 0)
2563: {
2564: if ((*s_etat_processus).profilage == d_vrai)
2565: {
2566: profilage(s_etat_processus, NULL);
2567: }
2568:
2569: (*s_etat_processus).erreur_systeme = d_es_processus;
2570: return;
2571: }
2572:
2573: if ((*(*((struct_processus_fils *)
2574: (*(*l_element_courant).donnee).objet)).thread)
2575: .thread_actif == d_faux)
2576: {
2577: drapeau_fin = d_vrai;
2578: }
2579: else
2580: {
2581: drapeau_fin = d_faux;
2582: }
2583:
2584: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2585: (*(*l_element_courant).donnee).objet)).thread)
2586: .mutex)) != 0)
2587: {
2588: if ((*s_etat_processus).profilage == d_vrai)
2589: {
2590: profilage(s_etat_processus, NULL);
2591: }
2592:
2593: (*s_etat_processus).erreur_systeme = d_es_processus;
2594: return;
2595: }
2596: }
2597:
2598: if (drapeau_fin == d_faux)
2599: {
2600: /*
2601: * Le processus n'est pas terminé
2602: */
2603:
2604: if (pthread_mutex_lock(&((*s_etat_processus)
2605: .mutex_interruptions)) != 0)
2606: {
2607: pthread_mutex_unlock(&((*s_etat_processus)
2608: .mutex_pile_processus));
2609:
2610: if ((*s_etat_processus).profilage == d_vrai)
2611: {
2612: profilage(s_etat_processus, NULL);
2613: }
2614:
2615: (*s_etat_processus).erreur_systeme =
2616: d_es_processus;
2617: return;
2618: }
2619:
2620: if ((*s_etat_processus).nombre_interruptions_non_affectees
2621: != 0)
2622: {
2623: affectation_interruptions_logicielles(s_etat_processus);
2624: }
2625:
2626: if (pthread_mutex_unlock(&((*s_etat_processus)
2627: .mutex_interruptions)) != 0)
2628: {
2629: pthread_mutex_unlock(&((*s_etat_processus)
2630: .mutex_pile_processus));
2631:
2632: if ((*s_etat_processus).profilage == d_vrai)
2633: {
2634: profilage(s_etat_processus, NULL);
2635: }
2636:
2637: (*s_etat_processus).erreur_systeme =
2638: d_es_processus;
2639: return;
2640: }
2641:
2642: if (pthread_mutex_unlock(&((*s_etat_processus)
2643: .mutex_pile_processus)) != 0)
2644: {
2645: if ((*s_etat_processus).profilage == d_vrai)
2646: {
2647: profilage(s_etat_processus, NULL);
2648: }
2649:
2650: (*s_etat_processus).erreur_systeme =
2651: d_es_processus;
2652: return;
2653: }
2654:
2655: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2656: {
2657: registre_instruction_valide =
2658: (*s_etat_processus).instruction_valide;
2659: traitement_interruptions_logicielles(
2660: s_etat_processus);
2661: (*s_etat_processus).instruction_valide =
2662: registre_instruction_valide;
2663: }
2664:
2665: # ifndef SEMAPHORES_NOMMES
2666: if (sem_post(&((*s_etat_processus).semaphore_fork))
2667: != 0)
2668: # else
2669: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2670: # endif
2671: {
2672: (*s_etat_processus).erreur_systeme = d_es_processus;
2673: return;
2674: }
2675:
2676: nanosleep(&attente, NULL);
2677:
2678: # ifndef SEMAPHORES_NOMMES
2679: while(sem_wait(&((*s_etat_processus).semaphore_fork))
2680: != 0)
2681: # else
2682: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2683: # endif
2684: {
2685: if (errno != EINTR)
2686: {
2687: (*s_etat_processus).erreur_systeme = d_es_processus;
2688: return;
2689: }
2690: }
2691:
2692: scrutation_injection(s_etat_processus);
2693:
2694: if (pthread_mutex_lock(&((*s_etat_processus)
2695: .mutex_pile_processus)) != 0)
2696: {
2697: if ((*s_etat_processus).profilage == d_vrai)
2698: {
2699: profilage(s_etat_processus, NULL);
2700: }
2701:
2702: (*s_etat_processus).erreur_systeme =
2703: d_es_processus;
2704: return;
2705: }
2706: }
2707: }
2708:
2709: INCR_GRANULARITE(attente.tv_nsec);
2710: }
2711:
2712: if ((*s_etat_processus).profilage == d_vrai)
2713: {
2714: profilage(s_etat_processus, NULL);
2715: }
2716:
2717: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_pile_processus))
2718: != 0)
2719: {
2720: (*s_etat_processus).erreur_systeme = d_es_processus;
2721: return;
2722: }
2723: }
2724: else
2725: {
2726: liberation(s_etat_processus, s_objet_argument);
2727:
2728: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2729: return;
2730: }
2731:
2732: liberation(s_etat_processus, s_objet_argument);
2733:
2734: return;
2735: }
2736:
2737:
2738: /*
2739: ================================================================================
2740: Fonction 'wfdata'
2741: ================================================================================
2742: Entrées : pointeur sur une structure struct_processus
2743: --------------------------------------------------------------------------------
2744: Sorties :
2745: --------------------------------------------------------------------------------
2746: Effets de bord : néant
2747: ================================================================================
2748: */
2749:
2750: void
2751: instruction_wfdata(struct_processus *s_etat_processus)
2752: {
2753: logical1 drapeau_fin;
2754:
2755: struct_liste_chainee *l_element_courant;
2756:
2757: struct_objet *s_objet_argument;
2758:
2759: struct timespec attente;
2760:
2761: unsigned char registre_instruction_valide;
2762:
2763: (*s_etat_processus).erreur_execution = d_ex;
2764:
2765: attente.tv_sec = 0;
2766: attente.tv_nsec = GRANULARITE_us * 1000;
2767:
2768: if ((*s_etat_processus).affichage_arguments == 'Y')
2769: {
2770: printf("\n WFDATA ");
2771:
2772: if ((*s_etat_processus).langue == 'F')
2773: {
2774: printf("(attente de données d'un processus fils)\n\n");
2775: }
2776: else
2777: {
2778: printf("(wait for data from child process)\n\n");
2779: }
2780:
2781: printf(" 1: %s\n", d_PRC);
2782:
2783: return;
2784: }
2785: else if ((*s_etat_processus).test_instruction == 'Y')
2786: {
2787: (*s_etat_processus).nombre_arguments = -1;
2788: return;
2789: }
2790:
2791: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2792: {
2793: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2794: {
2795: return;
2796: }
2797: }
2798:
2799: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2800: &s_objet_argument) == d_erreur)
2801: {
2802: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2803: return;
2804: }
2805:
2806: if ((*s_objet_argument).type == PRC)
2807: {
2808: drapeau_fin = d_faux;
2809:
2810: if ((*s_etat_processus).profilage == d_vrai)
2811: {
2812: profilage(s_etat_processus, "Interprocess or interthread "
2813: "communications (WFDATA)");
2814:
2815: if ((*s_etat_processus).erreur_systeme != d_es)
2816: {
2817: return;
2818: }
2819: }
2820:
2821: if (pthread_mutex_lock(&((*s_etat_processus).mutex_pile_processus))
2822: != 0)
2823: {
2824: if ((*s_etat_processus).profilage == d_vrai)
2825: {
2826: profilage(s_etat_processus, NULL);
2827: }
2828:
2829: (*s_etat_processus).erreur_systeme = d_es_processus;
2830: return;
2831: }
2832:
2833: while(drapeau_fin == d_faux)
2834: {
2835: l_element_courant = (struct_liste_chainee *)
2836: (*s_etat_processus).l_base_pile_processus;
2837:
2838: while(l_element_courant != NULL)
2839: {
2840: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2841: .donnee).objet)).thread).processus_detache == d_vrai)
2842: {
2843: if (((*(*((struct_processus_fils *) (*(*l_element_courant)
2844: .donnee).objet)).thread).pid ==
2845: (*(*((struct_processus_fils *)
2846: (*s_objet_argument).objet)).thread).pid)
2847: && ((*(*((struct_processus_fils *)
2848: (*s_objet_argument).objet)).thread)
2849: .processus_detache == d_vrai))
2850: {
2851: break;
2852: }
2853: }
2854: else
2855: {
2856: if ((pthread_equal((*(*((struct_processus_fils *)
2857: (*(*l_element_courant).donnee).objet)).thread).tid,
2858: (*(*((struct_processus_fils *) (*s_objet_argument)
2859: .objet)).thread).tid) != 0) &&
2860: ((*(*((struct_processus_fils *)
2861: (*(*l_element_courant).donnee).objet)).thread).pid
2862: == (*(*((struct_processus_fils *)
2863: (*s_objet_argument).objet)).thread).pid) &&
2864: ((*(*((struct_processus_fils *)
2865: (*s_objet_argument).objet)).thread)
2866: .processus_detache == d_faux))
2867: {
2868: break;
2869: }
2870: }
2871:
2872: l_element_courant = (*l_element_courant).suivant;
2873: }
2874:
2875: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2876: {
2877: if ((*s_etat_processus).profilage == d_vrai)
2878: {
2879: profilage(s_etat_processus, NULL);
2880: }
2881:
2882: if (pthread_mutex_unlock(&((*s_etat_processus)
2883: .mutex_pile_processus)) != 0)
2884: {
2885: (*s_etat_processus).erreur_systeme = d_es_processus;
2886: return;
2887: }
2888:
2889: liberation(s_etat_processus, s_objet_argument);
2890: return;
2891: }
2892:
2893: if (l_element_courant != NULL)
2894: {
2895: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2896: (*(*l_element_courant).donnee).objet)).thread).mutex))
2897: != 0)
2898: {
2899: (*s_etat_processus).erreur_systeme = d_es_processus;
2900: return;
2901: }
2902:
2903: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2904: .donnee).objet)).thread).nombre_objets_dans_pipe != 0)
2905: {
2906: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2907: (*(*l_element_courant).donnee).objet)).thread)
2908: .mutex)) != 0)
2909: {
2910: (*s_etat_processus).erreur_systeme = d_es_processus;
2911: return;
2912: }
2913:
2914: drapeau_fin = d_vrai;
2915: }
2916: else
2917: {
2918: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2919: (*(*l_element_courant).donnee).objet)).thread)
2920: .mutex)) != 0)
2921: {
2922: (*s_etat_processus).erreur_systeme = d_es_processus;
2923: return;
2924: }
2925:
2926: if (pthread_mutex_unlock(&((*s_etat_processus)
2927: .mutex_pile_processus)) != 0)
2928: {
2929: if ((*s_etat_processus).profilage == d_vrai)
2930: {
2931: profilage(s_etat_processus, NULL);
2932: }
2933:
2934: (*s_etat_processus).erreur_systeme =
2935: d_es_processus;
2936: return;
2937: }
2938:
2939: # ifndef SEMAPHORES_NOMMES
2940: if (sem_post(&((*s_etat_processus).semaphore_fork))
2941: != 0)
2942: # else
2943: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2944: # endif
2945: {
2946: (*s_etat_processus).erreur_systeme = d_es_processus;
2947: return;
2948: }
2949:
2950: nanosleep(&attente, NULL);
2951:
2952: # ifndef SEMAPHORES_NOMMES
2953: while(sem_wait(&((*s_etat_processus).semaphore_fork))
2954: != 0)
2955: # else
2956: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
2957: # endif
2958: {
2959: if (errno != EINTR)
2960: {
2961: (*s_etat_processus).erreur_systeme = d_es_processus;
2962: return;
2963: }
2964: }
2965:
2966: scrutation_injection(s_etat_processus);
2967:
2968: if (pthread_mutex_lock(&(*s_etat_processus)
2969: .mutex_interruptions) != 0)
2970: {
2971: (*s_etat_processus).erreur_systeme = d_es_processus;
2972: return;
2973: }
2974:
2975: if ((*s_etat_processus).nombre_interruptions_non_affectees
2976: != 0)
2977: {
2978: affectation_interruptions_logicielles(s_etat_processus);
2979: }
2980:
2981: if (pthread_mutex_unlock(&(*s_etat_processus)
2982: .mutex_interruptions) != 0)
2983: {
2984: (*s_etat_processus).erreur_systeme = d_es_processus;
2985: return;
2986: }
2987:
2988: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2989: {
2990: registre_instruction_valide =
2991: (*s_etat_processus).instruction_valide;
2992: traitement_interruptions_logicielles(s_etat_processus);
2993: (*s_etat_processus).instruction_valide =
2994: registre_instruction_valide;
2995: }
2996:
2997: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2998: {
2999: if ((*s_etat_processus).profilage == d_vrai)
3000: {
3001: profilage(s_etat_processus, NULL);
3002: }
3003:
3004: return;
3005: }
3006:
3007: if (pthread_mutex_lock(&((*s_etat_processus)
3008: .mutex_pile_processus)) != 0)
3009: {
3010: if ((*s_etat_processus).profilage == d_vrai)
3011: {
3012: profilage(s_etat_processus, NULL);
3013: }
3014:
3015: (*s_etat_processus).erreur_systeme =
3016: d_es_processus;
3017: return;
3018: }
3019: }
3020: }
3021: else
3022: {
3023: drapeau_fin = d_vrai;
3024: (*s_etat_processus).erreur_execution = d_ex_processus;
3025: }
3026:
3027: INCR_GRANULARITE(attente.tv_nsec);
3028: }
3029:
3030: if ((*s_etat_processus).profilage == d_vrai)
3031: {
3032: profilage(s_etat_processus, NULL);
3033: }
3034:
3035: if (pthread_mutex_unlock(&((*s_etat_processus).mutex_pile_processus))
3036: != 0)
3037: {
3038: (*s_etat_processus).erreur_systeme = d_es_processus;
3039: return;
3040: }
3041: }
3042: else
3043: {
3044: liberation(s_etat_processus, s_objet_argument);
3045:
3046: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3047: return;
3048: }
3049:
3050: liberation(s_etat_processus, s_objet_argument);
3051:
3052: return;
3053: }
3054:
3055:
3056: /*
3057: ================================================================================
3058: Fonction 'wfsock'
3059: ================================================================================
3060: Entrées : pointeur sur une structure struct_processus
3061: --------------------------------------------------------------------------------
3062: Sorties :
3063: --------------------------------------------------------------------------------
3064: Effets de bord : néant
3065: ================================================================================
3066: */
3067:
3068: static inline logical1
3069: options_sockets(struct_processus *s_etat_processus, struct_socket *s_socket)
3070: {
3071: int drapeau;
3072:
3073: if (((*s_socket).options & (1 << d_BROADCAST)) != 0)
3074: {
3075: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_BROADCAST, &drapeau,
3076: sizeof(drapeau)) != 0)
3077: {
3078: return(d_erreur);
3079: }
3080: }
3081:
3082: if (((*s_socket).options & (1 << d_DONT_ROUTE)) != 0)
3083: {
3084: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_DONTROUTE, &drapeau,
3085: sizeof(drapeau)) != 0)
3086: {
3087: return(d_erreur);
3088: }
3089: }
3090:
3091: if (((*s_socket).options & (1 << d_KEEP_ALIVE)) != 0)
3092: {
3093: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_KEEPALIVE, &drapeau,
3094: sizeof(drapeau)) != 0)
3095: {
3096: return(d_erreur);
3097: }
3098: }
3099:
3100: # ifdef SO_PRIORITY
3101: if (((*s_socket).options & (1 << d_PRIORITY)) != 0)
3102: {
3103: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_PRIORITY,
3104: &((*s_socket).priorite), sizeof((*s_socket).priorite)) != 0)
3105: {
3106: return(d_erreur);
3107: }
3108: }
3109: # endif
3110:
3111: // Les deux options suivantes ne peuvent être positionnées simultanément.
3112:
3113: if (((*s_socket).options & (1 << d_RECEIVE_BUFFER)) != 0)
3114: {
3115: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_RCVBUF,
3116: &((*s_socket).buffer_reception),
3117: sizeof((*s_socket).buffer_reception)) != 0)
3118: {
3119: return(d_erreur);
3120: }
3121: }
3122:
3123: # ifdef SO_RCVBUFFORCE
3124: if (((*s_socket).options & (1 << d_FORCE_RECEIVE_BUFFER)) != 0)
3125: {
3126: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_RCVBUFFORCE,
3127: &((*s_socket).buffer_reception),
3128: sizeof((*s_socket).buffer_reception)) != 0)
3129: {
3130: return(d_erreur);
3131: }
3132: }
3133: # endif
3134:
3135: // Même remarque
3136:
3137: if (((*s_socket).options & (1 << d_SEND_BUFFER)) != 0)
3138: {
3139: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_SNDBUF,
3140: &((*s_socket).buffer_emission),
3141: sizeof((*s_socket).buffer_emission)) != 0)
3142: {
3143: return(d_erreur);
3144: }
3145: }
3146:
3147: # ifdef SO_SNDBUFFORCE
3148: if (((*s_socket).options & (1 << d_FORCE_SEND_BUFFER)) != 0)
3149: {
3150: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_SNDBUFFORCE,
3151: &((*s_socket).buffer_emission),
3152: sizeof((*s_socket).buffer_emission)) != 0)
3153: {
3154: return(d_erreur);
3155: }
3156: }
3157: # endif
3158:
3159: if (((*s_socket).options & (1 << d_RECEIVING_TIMEOUT)) != 0)
3160: {
3161: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_RCVTIMEO,
3162: &((*s_socket).timeout_emission),
3163: sizeof((*s_socket).timeout_emission)) != 0)
3164: {
3165: return(d_erreur);
3166: }
3167: }
3168:
3169: if (((*s_socket).options & (1 << d_SENDING_TIMEOUT)) != 0)
3170: {
3171: if (setsockopt((*s_socket).socket, SOL_SOCKET, SO_SNDTIMEO,
3172: &((*s_socket).timeout_emission),
3173: sizeof((*s_socket).timeout_emission)) != 0)
3174: {
3175: return(d_erreur);
3176: }
3177: }
3178:
3179: return(d_absence_erreur);;
3180: }
3181:
3182:
3183: void
3184: instruction_wfsock(struct_processus *s_etat_processus)
3185: {
3186: int erreur;
3187:
3188: logical1 drapeau;
3189:
3190: socklen_t longueur;
3191:
3192: struct_liste_chainee *l_element_courant;
3193:
3194: struct_objet *s_objet_argument;
3195: struct_objet *s_objet_resultat;
3196:
3197: struct pollfd s_poll;
3198:
3199: struct sockaddr_in adresse_ipv4;
3200: # ifdef IPV6
3201: struct sockaddr_in6 adresse_ipv6;
3202: # endif
3203:
3204: unsigned long i;
3205:
3206: if ((*s_etat_processus).affichage_arguments == 'Y')
3207: {
3208: printf("\n WFSOCK ");
3209:
3210: if ((*s_etat_processus).langue == 'F')
3211: {
3212: printf("(attente d'une connexion sur une socket)\n\n");
3213: }
3214: else
3215: {
3216: printf("(wait for connection on a socket)\n\n");
3217: }
3218:
3219: printf(" 1: %s\n", d_SCK);
3220: printf("-> 2: %s\n", d_SCK);
3221: printf(" 1: %s\n", d_SCK);
3222:
3223: return;
3224: }
3225: else if ((*s_etat_processus).test_instruction == 'Y')
3226: {
3227: (*s_etat_processus).nombre_arguments = -1;
3228: return;
3229: }
3230:
3231: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3232: {
3233: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
3234: {
3235: return;
3236: }
3237: }
3238:
3239: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3240: &s_objet_argument) == d_erreur)
3241: {
3242: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
3243: return;
3244: }
3245:
3246: if ((*s_objet_argument).type == SCK)
3247: {
3248: if ((strcmp((*((struct_socket *) (*s_objet_argument).objet)).type,
3249: "STREAM") != 0) && (strcmp((*((struct_socket *)
3250: (*s_objet_argument).objet)).type, "SEQUENTIAL DATAGRAM") != 0))
3251: {
3252: // Mode non connecté : l'attente se fait sur un poll()
3253:
3254: if ((s_objet_resultat = copie_objet(s_etat_processus,
3255: s_objet_argument, 'P')) == NULL)
3256: {
3257: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
3258: return;
3259: }
3260:
3261: s_poll.fd = (*((struct_socket *) (*s_objet_argument).objet)).socket;
3262: s_poll.events = POLLIN;
3263: s_poll.revents = 0;
3264:
3265: do
3266: {
3267: drapeau = d_vrai;
3268:
3269: # ifndef SEMAPHORES_NOMMES
3270: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3271: # else
3272: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3273: # endif
3274: {
3275: (*s_etat_processus).erreur_systeme = d_es_processus;
3276: return;
3277: }
3278:
3279: if (poll(&s_poll, 1, -1) < 0)
3280: {
3281: erreur = errno;
3282:
3283: # ifndef SEMAPHORES_NOMMES
3284: while(sem_wait(&((*s_etat_processus)
3285: .semaphore_fork)) != 0)
3286: # else
3287: while(sem_wait((*s_etat_processus).semaphore_fork)
3288: != 0)
3289: # endif
3290:
3291: if (erreur != EINTR)
3292: {
3293: liberation(s_etat_processus, s_objet_argument);
3294: liberation(s_etat_processus, s_objet_resultat);
3295:
3296: (*s_etat_processus).erreur_execution =
3297: d_ex_erreur_acces_fichier;
3298: return;
3299: }
3300:
3301: scrutation_injection(s_etat_processus);
3302:
3303: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3304: {
3305: drapeau = d_vrai;
3306: }
3307: else
3308: {
3309: drapeau = d_faux;
3310: }
3311: }
3312: else
3313: {
3314: # ifndef SEMAPHORES_NOMMES
3315: while(sem_wait(&((*s_etat_processus)
3316: .semaphore_fork)) != 0)
3317: # else
3318: while(sem_wait((*s_etat_processus).semaphore_fork)
3319: != 0)
3320: # endif
3321: {
3322: if (errno != EINTR)
3323: {
3324: (*s_etat_processus).erreur_systeme =
3325: d_es_processus;
3326: return;
3327: }
3328: }
3329: }
3330: } while(drapeau == d_faux);
3331:
3332: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3333: s_objet_argument) == d_erreur)
3334: {
3335: return;
3336: }
3337:
3338: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3339: s_objet_resultat) == d_erreur)
3340: {
3341: return;
3342: }
3343: }
3344: else
3345: {
3346: // Mode connecté
3347:
3348: if ((s_objet_resultat = copie_objet(s_etat_processus,
3349: s_objet_argument, 'O')) == NULL)
3350: {
3351: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
3352: return;
3353: }
3354:
3355: (*((struct_socket *) (*s_objet_resultat).objet)).effacement = 'N';
3356: (*((struct_socket *) (*s_objet_resultat).objet)).socket_en_ecoute
3357: = 'N';
3358:
3359: if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
3360: PF_INET)
3361: {
3362: longueur = sizeof(adresse_ipv4);
3363:
3364: do
3365: {
3366: drapeau = d_vrai;
3367:
3368: # ifndef SEMAPHORES_NOMMES
3369: if (sem_post(&((*s_etat_processus).semaphore_fork))
3370: != 0)
3371: # else
3372: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3373: # endif
3374: {
3375: (*s_etat_processus).erreur_systeme = d_es_processus;
3376: return;
3377: }
3378:
3379: if (((*((struct_socket *) (*s_objet_resultat).objet))
3380: .socket = accept((*((struct_socket *)
3381: (*s_objet_argument).objet)).socket,
3382: (struct sockaddr *) &adresse_ipv4, &longueur))
3383: < 0)
3384: {
3385: erreur = errno;
3386:
3387: # ifndef SEMAPHORES_NOMMES
3388: while(sem_wait(&((*s_etat_processus)
3389: .semaphore_fork)) != 0)
3390: # else
3391: while(sem_wait((*s_etat_processus).semaphore_fork)
3392: != 0)
3393: # endif
3394: {
3395: if (errno != EINTR)
3396: {
3397: (*s_etat_processus).erreur_systeme =
3398: d_es_processus;
3399: return;
3400: }
3401: }
3402:
3403: if (erreur != EINTR)
3404: {
3405: liberation(s_etat_processus, s_objet_argument);
3406: liberation(s_etat_processus, s_objet_resultat);
3407:
3408: (*s_etat_processus).erreur_execution =
3409: d_ex_erreur_acces_fichier;
3410: return;
3411: }
3412:
3413: scrutation_injection(s_etat_processus);
3414:
3415: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3416: {
3417: drapeau = d_vrai;
3418: }
3419: else
3420: {
3421: drapeau = d_faux;
3422: }
3423: }
3424: else
3425: {
3426: # ifndef SEMAPHORES_NOMMES
3427: while(sem_wait(&((*s_etat_processus)
3428: .semaphore_fork)) != 0)
3429: # else
3430: while(sem_wait((*s_etat_processus).semaphore_fork)
3431: != 0)
3432: # endif
3433: {
3434: if (errno != EINTR)
3435: {
3436: (*s_etat_processus).erreur_systeme =
3437: d_es_processus;
3438: return;
3439: }
3440: }
3441:
3442: if (options_sockets(s_etat_processus,
3443: (*s_objet_resultat).objet) != d_absence_erreur)
3444: {
3445: liberation(s_etat_processus, s_objet_argument);
3446: liberation(s_etat_processus, s_objet_resultat);
3447:
3448: (*s_etat_processus).erreur_execution =
3449: d_ex_erreur_parametre_fichier;
3450: return;
3451: }
3452: }
3453: } while(drapeau == d_faux);
3454:
3455: if (((*((struct_socket *) (*s_objet_resultat).objet))
3456: .adresse_distante = malloc(22 *
3457: sizeof(unsigned char))) == NULL)
3458: {
3459: (*s_etat_processus).erreur_systeme =
3460: d_es_allocation_memoire;
3461: return;
3462: }
3463:
3464: sprintf((*((struct_socket *) (*s_objet_resultat).objet))
3465: .adresse_distante, "%d.%d.%d.%d(%d)",
3466: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 24) & 0xFF,
3467: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 16) & 0xFF,
3468: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 8) & 0xFF,
3469: ntohl(adresse_ipv4.sin_addr.s_addr) & 0xFF,
3470: ntohs(adresse_ipv4.sin_port));
3471: }
3472: else if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
3473: PF_INET6)
3474: {
3475: # ifdef IPV6
3476: longueur = sizeof(adresse_ipv6);
3477:
3478: do
3479: {
3480: drapeau = d_vrai;
3481:
3482: # ifndef SEMAPHORES_NOMMES
3483: if (sem_post(&((*s_etat_processus).semaphore_fork))
3484: != 0)
3485: # else
3486: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3487: # endif
3488: {
3489: (*s_etat_processus).erreur_systeme = d_es_processus;
3490: return;
3491: }
3492:
3493: if (((*((struct_socket *) (*s_objet_resultat).objet))
3494: .socket = accept((*((struct_socket *)
3495: (*s_objet_argument).objet)).socket,
3496: (struct sockaddr *) &adresse_ipv6, &longueur)) < 0)
3497: {
3498: erreur = errno;
3499:
3500: # ifndef SEMAPHORES_NOMMES
3501: while(sem_wait(&((*s_etat_processus)
3502: .semaphore_fork)) != 0)
3503: # else
3504: while(sem_wait((*s_etat_processus).semaphore_fork)
3505: != 0)
3506: # endif
3507: {
3508: if (errno != EINTR)
3509: {
3510: (*s_etat_processus).erreur_systeme =
3511: d_es_processus;
3512: return;
3513: }
3514: }
3515:
3516: if (erreur != EINTR)
3517: {
3518: liberation(s_etat_processus, s_objet_argument);
3519: liberation(s_etat_processus, s_objet_resultat);
3520:
3521: (*s_etat_processus).erreur_execution =
3522: d_ex_erreur_acces_fichier;
3523: return;
3524: }
3525:
3526: scrutation_injection(s_etat_processus);
3527:
3528: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3529: {
3530: drapeau = d_vrai;
3531: }
3532: else
3533: {
3534: drapeau = d_faux;
3535: }
3536: }
3537: else
3538: {
3539: # ifndef SEMAPHORES_NOMMES
3540: while(sem_wait(&((*s_etat_processus)
3541: .semaphore_fork)) != 0)
3542: # else
3543: while(sem_wait((*s_etat_processus).semaphore_fork)
3544: != 0)
3545: # endif
3546: {
3547: if (errno != EINTR)
3548: {
3549: (*s_etat_processus).erreur_systeme =
3550: d_es_processus;
3551: return;
3552: }
3553: }
3554:
3555: if (options_sockets(s_etat_processus,
3556: (*s_objet_resultat).objet) != d_absence_erreur)
3557: {
3558: liberation(s_etat_processus, s_objet_argument);
3559: liberation(s_etat_processus, s_objet_resultat);
3560:
3561: (*s_etat_processus).erreur_execution =
3562: d_ex_erreur_parametre_fichier;
3563: return;
3564: }
3565: }
3566: } while(drapeau == d_faux);
3567:
3568: if (((*((struct_socket *) (*s_objet_resultat).objet))
3569: .adresse_distante = malloc(55 *
3570: sizeof(unsigned char))) == NULL)
3571: {
3572: (*s_etat_processus).erreur_systeme =
3573: d_es_allocation_memoire;
3574: return;
3575: }
3576:
3577: (*((struct_socket *) (*s_objet_resultat).objet))
3578: .adresse_distante = d_code_fin_chaine;
3579:
3580: for(i = 0; i < 16; i++)
3581: {
3582: sprintf((*((struct_socket *) (*s_objet_resultat)
3583: .objet)).adresse_distante, (i == 0) ? "%s%X"
3584: : "%s:%X", (*((struct_socket *) (*s_objet_resultat)
3585: .objet)).adresse_distante,
3586: adresse_ipv6.sin6_addr.s6_addr[i]);
3587: }
3588:
3589: sprintf((*((struct_socket *) (*s_objet_resultat)
3590: .objet)).adresse_distante, "%s(%u)",
3591: (*((struct_socket *) (*s_objet_resultat)
3592: .objet)).adresse_distante,
3593: ntohs(adresse_ipv6.sin6_port));
3594: # else
3595: if ((*s_etat_processus).langue == 'F')
3596: {
3597: printf("+++Attention : Support du protocole"
3598: " IPv6 indisponible\n");
3599: }
3600: else
3601: {
3602: printf("+++Warning : IPv6 support "
3603: "unavailable\n");
3604: }
3605: # endif
3606: }
3607: else
3608: {
3609: longueur = 0;
3610:
3611: do
3612: {
3613: drapeau = d_vrai;
3614:
3615: # ifndef SEMAPHORES_NOMMES
3616: if (sem_post(&((*s_etat_processus).semaphore_fork))
3617: != 0)
3618: # else
3619: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3620: # endif
3621: {
3622: (*s_etat_processus).erreur_systeme = d_es_processus;
3623: return;
3624: }
3625:
3626: if (((*((struct_socket *) (*s_objet_resultat).objet))
3627: .socket = accept((*((struct_socket *)
3628: (*s_objet_argument).objet)).socket, NULL,
3629: &longueur)) < 0)
3630: {
3631: erreur = errno;
3632:
3633: # ifndef SEMAPHORES_NOMMES
3634: while(sem_wait(&((*s_etat_processus)
3635: .semaphore_fork)) != 0)
3636: # else
3637: while(sem_wait((*s_etat_processus).semaphore_fork)
3638: != 0)
3639: # endif
3640: {
3641: if (errno != EINTR)
3642: {
3643: (*s_etat_processus).erreur_systeme =
3644: d_es_processus;
3645: return;
3646: }
3647: }
3648:
3649: if (erreur != EINTR)
3650: {
3651: liberation(s_etat_processus, s_objet_argument);
3652: liberation(s_etat_processus, s_objet_resultat);
3653:
3654: (*s_etat_processus).erreur_execution =
3655: d_ex_erreur_acces_fichier;
3656: return;
3657: }
3658:
3659: scrutation_injection(s_etat_processus);
3660:
3661: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3662: {
3663: drapeau = d_vrai;
3664: }
3665: else
3666: {
3667: drapeau = d_faux;
3668: }
3669: }
3670: else
3671: {
3672: # ifndef SEMAPHORES_NOMMES
3673: while(sem_wait(&((*s_etat_processus)
3674: .semaphore_fork)) != 0)
3675: # else
3676: while(sem_wait((*s_etat_processus).semaphore_fork)
3677: != 0)
3678: # endif
3679: {
3680: if (errno != EINTR)
3681: {
3682: (*s_etat_processus).erreur_systeme =
3683: d_es_processus;
3684: return;
3685: }
3686: }
3687:
3688: if (options_sockets(s_etat_processus,
3689: (*s_objet_resultat).objet) != d_absence_erreur)
3690: {
3691: liberation(s_etat_processus, s_objet_argument);
3692: liberation(s_etat_processus, s_objet_resultat);
3693:
3694: (*s_etat_processus).erreur_execution =
3695: d_ex_erreur_parametre_fichier;
3696: return;
3697: }
3698: }
3699: } while(drapeau == d_faux);
3700: }
3701:
3702: // Si accept() renvoie une erreur non récupérée, il ne peut s'agir
3703: // que de EINTR sachant qu'une requête d'arrêt est en court de
3704: // traitement.
3705:
3706: if ((*((struct_socket *) (*s_objet_resultat).objet)).socket >= 0)
3707: {
3708: l_element_courant = (*s_etat_processus).s_sockets;
3709:
3710: if (l_element_courant == NULL)
3711: {
3712: if (((*s_etat_processus).s_sockets =
3713: allocation_maillon(s_etat_processus)) == NULL)
3714: {
3715: (*s_etat_processus).erreur_systeme =
3716: d_es_allocation_memoire;
3717: return;
3718: }
3719:
3720: (*(*s_etat_processus).s_sockets).suivant = NULL;
3721: l_element_courant = (*s_etat_processus).s_sockets;
3722: }
3723: else
3724: {
3725: /*
3726: * Ajout d'un élément à la fin de la liste chaînée
3727: */
3728:
3729: while((*l_element_courant).suivant != NULL)
3730: {
3731: l_element_courant = (*l_element_courant).suivant;
3732: }
3733:
3734: if (((*l_element_courant).suivant =
3735: allocation_maillon(s_etat_processus)) == NULL)
3736: {
3737: (*s_etat_processus).erreur_systeme =
3738: d_es_allocation_memoire;
3739: return;
3740: }
3741:
3742: l_element_courant = (*l_element_courant).suivant;
3743: (*l_element_courant).suivant = NULL;
3744: }
3745:
3746: if (((*l_element_courant).donnee = copie_objet(s_etat_processus,
3747: s_objet_resultat, 'O')) == NULL)
3748: {
3749: (*s_etat_processus).erreur_systeme =
3750: d_es_allocation_memoire;
3751: return;
3752: }
3753: }
3754:
3755: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3756: s_objet_argument) == d_erreur)
3757: {
3758: return;
3759: }
3760:
3761: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3762: s_objet_resultat) == d_erreur)
3763: {
3764: return;
3765: }
3766: }
3767: }
3768: else
3769: {
3770: liberation(s_etat_processus, s_objet_argument);
3771:
3772: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3773: return;
3774: }
3775:
3776: return;
3777: }
3778:
3779:
3780: /*
3781: ================================================================================
3782: Fonction 'wfswi'
3783: ================================================================================
3784: Entrées : pointeur sur une structure struct_processus
3785: --------------------------------------------------------------------------------
3786: Sorties :
3787: --------------------------------------------------------------------------------
3788: Effets de bord : néant
3789: ================================================================================
3790: */
3791:
3792: void
3793: instruction_wfswi(struct_processus *s_etat_processus)
3794: {
3795: integer8 interruption;
3796:
3797: logical1 drapeau_fin;
3798:
3799: struct_objet *s_objet_argument;
3800:
3801: struct timespec attente;
3802:
3803: (*s_etat_processus).erreur_execution = d_ex;
3804:
3805: attente.tv_sec = 0;
3806: attente.tv_nsec = GRANULARITE_us * 1000;
3807:
3808: if ((*s_etat_processus).affichage_arguments == 'Y')
3809: {
3810: printf("\n WFSWI ");
3811:
3812: if ((*s_etat_processus).langue == 'F')
3813: {
3814: printf("(attente d'une interruption)\n\n");
3815: }
3816: else
3817: {
3818: printf("(wait for interrupt)\n\n");
3819: }
3820:
3821: printf(" 1: %s\n", d_INT);
3822:
3823: return;
3824: }
3825: else if ((*s_etat_processus).test_instruction == 'Y')
3826: {
3827: (*s_etat_processus).nombre_arguments = -1;
3828: return;
3829: }
3830:
3831: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3832: {
3833: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
3834: {
3835: return;
3836: }
3837: }
3838:
3839: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3840: &s_objet_argument) == d_erreur)
3841: {
3842: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
3843: return;
3844: }
3845:
3846: if ((*s_objet_argument).type == INT)
3847: {
3848: drapeau_fin = d_faux;
3849:
3850: interruption = (*((integer8 *) (*s_objet_argument).objet));
3851:
3852: if ((interruption < 1) || (interruption > d_NOMBRE_INTERRUPTIONS))
3853: {
3854: liberation(s_etat_processus, s_objet_argument);
3855:
3856: (*s_etat_processus).erreur_execution = d_ex_interruption_invalide;
3857: return;
3858: }
3859:
3860: while(drapeau_fin == d_faux)
3861: {
3862: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3863: {
3864: liberation(s_etat_processus, s_objet_argument);
3865: return;
3866: }
3867:
3868: if (pthread_mutex_lock(&(*s_etat_processus).mutex_interruptions)
3869: != 0)
3870: {
3871: (*s_etat_processus).erreur_systeme = d_es_processus;
3872: return;
3873: }
3874:
3875: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3876: {
3877: affectation_interruptions_logicielles(s_etat_processus);
3878: }
3879:
3880: if (pthread_mutex_unlock(&(*s_etat_processus).mutex_interruptions)
3881: != 0)
3882: {
3883: (*s_etat_processus).erreur_systeme = d_es_processus;
3884: return;
3885: }
3886:
3887: if ((*s_etat_processus).queue_interruptions[interruption - 1] > 0)
3888: {
3889: drapeau_fin = d_vrai;
3890: }
3891: else
3892: {
3893: nanosleep(&attente, NULL);
3894: scrutation_injection(s_etat_processus);
3895: INCR_GRANULARITE(attente.tv_nsec);
3896: }
3897: }
3898: }
3899: else
3900: {
3901: liberation(s_etat_processus, s_objet_argument);
3902:
3903: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3904: return;
3905: }
3906:
3907: liberation(s_etat_processus, s_objet_argument);
3908:
3909: return;
3910: }
3911:
3912:
3913: /*
3914: ================================================================================
3915: Fonction 'wfpoke'
3916: ================================================================================
3917: Entrées : pointeur sur une structure struct_processus
3918: --------------------------------------------------------------------------------
3919: Sorties :
3920: --------------------------------------------------------------------------------
3921: Effets de bord : néant
3922: ================================================================================
3923: */
3924:
3925: void
3926: instruction_wfpoke(struct_processus *s_etat_processus)
3927: {
3928: struct timespec attente;
3929:
3930: unsigned char registre_instruction_valide;
3931:
3932: (*s_etat_processus).erreur_execution = d_ex;
3933:
3934: attente.tv_sec = 0;
3935: attente.tv_nsec = GRANULARITE_us * 1000;
3936:
3937: if ((*s_etat_processus).affichage_arguments == 'Y')
3938: {
3939: printf("\n WFPOKE ");
3940:
3941: if ((*s_etat_processus).langue == 'F')
3942: {
3943: printf("(attente de données en provenance du processus père)\n\n");
3944: printf(" Aucun argument\n");
3945: }
3946: else
3947: {
3948: printf("(wait for data from parent process)\n\n");
3949: printf(" No argument\n");
3950: }
3951:
3952: return;
3953: }
3954: else if ((*s_etat_processus).test_instruction == 'Y')
3955: {
3956: (*s_etat_processus).nombre_arguments = -1;
3957: return;
3958: }
3959:
3960: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3961: {
3962: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3963: {
3964: return;
3965: }
3966: }
3967:
3968: if ((*s_etat_processus).presence_pipes == d_faux)
3969: {
3970: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3971: return;
3972: }
3973:
3974: if ((*s_etat_processus).nombre_objets_injectes > 0)
3975: {
3976: return;
3977: }
3978:
3979: if ((*s_etat_processus).profilage == d_vrai)
3980: {
3981: profilage(s_etat_processus, "Interprocess or interthread "
3982: "communications (WFPOKE)");
3983:
3984: if ((*s_etat_processus).erreur_systeme != d_es)
3985: {
3986: return;
3987: }
3988: }
3989:
3990: do
3991: {
3992: # ifndef SEMAPHORES_NOMMES
3993: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3994: # else
3995: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3996: # endif
3997: {
3998: (*s_etat_processus).erreur_systeme = d_es_processus;
3999: return;
4000: }
4001:
4002: nanosleep(&attente, NULL);
4003:
4004: # ifndef SEMAPHORES_NOMMES
4005: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
4006: # else
4007: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
4008: # endif
4009: {
4010: if (errno != EINTR)
4011: {
4012: (*s_etat_processus).erreur_systeme = d_es_processus;
4013: return;
4014: }
4015: }
4016:
4017: scrutation_injection(s_etat_processus);
4018:
4019: if (pthread_mutex_lock(&(*s_etat_processus).mutex_interruptions) != 0)
4020: {
4021: (*s_etat_processus).erreur_systeme = d_es_processus;
4022: return;
4023: }
4024:
4025: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
4026: {
4027: affectation_interruptions_logicielles(s_etat_processus);
4028: }
4029:
4030: if (pthread_mutex_unlock(&(*s_etat_processus).mutex_interruptions) != 0)
4031: {
4032: (*s_etat_processus).erreur_systeme = d_es_processus;
4033: return;
4034: }
4035:
4036: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
4037: {
4038: registre_instruction_valide =
4039: (*s_etat_processus).instruction_valide;
4040: traitement_interruptions_logicielles(s_etat_processus);
4041: (*s_etat_processus).instruction_valide =
4042: registre_instruction_valide;
4043: }
4044:
4045: if ((*s_etat_processus).var_volatile_requete_arret != 0)
4046: {
4047: if ((*s_etat_processus).profilage == d_vrai)
4048: {
4049: profilage(s_etat_processus, NULL);
4050: }
4051:
4052: return;
4053: }
4054:
4055: INCR_GRANULARITE(attente.tv_nsec);
4056: } while((*s_etat_processus).nombre_objets_injectes == 0);
4057:
4058: return;
4059: }
4060:
4061:
4062: /*
4063: ================================================================================
4064: Fonction 'wfack'
4065: ================================================================================
4066: Entrées : pointeur sur une structure struct_processus
4067: --------------------------------------------------------------------------------
4068: Sorties :
4069: --------------------------------------------------------------------------------
4070: Effets de bord : néant
4071: ================================================================================
4072: */
4073:
4074: void
4075: instruction_wfack(struct_processus *s_etat_processus)
4076: {
4077: struct timespec attente;
4078:
4079: unsigned char registre_instruction_valide;
4080:
4081: (*s_etat_processus).erreur_execution = d_ex;
4082:
4083: attente.tv_sec = 0;
4084: attente.tv_nsec = GRANULARITE_us * 1000;
4085:
4086: if ((*s_etat_processus).affichage_arguments == 'Y')
4087: {
4088: printf("\n WFACK ");
4089:
4090: if ((*s_etat_processus).langue == 'F')
4091: {
4092: printf("(attente des acquittements de lecture)\n\n");
4093: printf(" Aucun argument\n");
4094: }
4095: else
4096: {
4097: printf("(wait for reading of data acknowledgement)\n\n");
4098: printf(" No argument\n");
4099: }
4100:
4101: return;
4102: }
4103: else if ((*s_etat_processus).test_instruction == 'Y')
4104: {
4105: (*s_etat_processus).nombre_arguments = -1;
4106: return;
4107: }
4108:
4109: if (test_cfsf(s_etat_processus, 31) == d_vrai)
4110: {
4111: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
4112: {
4113: return;
4114: }
4115: }
4116:
4117: if ((*s_etat_processus).presence_pipes == d_faux)
4118: {
4119: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
4120: return;
4121: }
4122:
4123: if ((*s_etat_processus).profilage == d_vrai)
4124: {
4125: profilage(s_etat_processus, "Interprocess or interthread communications"
4126: " (WFACK)");
4127:
4128: if ((*s_etat_processus).erreur_systeme != d_es)
4129: {
4130: return;
4131: }
4132: }
4133:
4134: while((*s_etat_processus).nombre_objets_envoyes_non_lus != 0)
4135: {
4136: scrutation_injection(s_etat_processus);
4137:
4138: if (pthread_mutex_lock(&(*s_etat_processus).mutex_interruptions) != 0)
4139: {
4140: (*s_etat_processus).erreur_systeme = d_es_processus;
4141: return;
4142: }
4143:
4144: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
4145: {
4146: affectation_interruptions_logicielles(s_etat_processus);
4147: }
4148:
4149: if (pthread_mutex_unlock(&(*s_etat_processus).mutex_interruptions) != 0)
4150: {
4151: (*s_etat_processus).erreur_systeme = d_es_processus;
4152: return;
4153: }
4154:
4155: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
4156: {
4157: registre_instruction_valide =
4158: (*s_etat_processus).instruction_valide;
4159: traitement_interruptions_logicielles(s_etat_processus);
4160: (*s_etat_processus).instruction_valide =
4161: registre_instruction_valide;
4162: }
4163:
4164: if ((*s_etat_processus).var_volatile_requete_arret != 0)
4165: {
4166: if ((*s_etat_processus).profilage == d_vrai)
4167: {
4168: profilage(s_etat_processus, NULL);
4169: }
4170:
4171: return;
4172: }
4173:
4174: # ifndef SEMAPHORES_NOMMES
4175: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
4176: # else
4177: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
4178: # endif
4179: {
4180: (*s_etat_processus).erreur_systeme = d_es_processus;
4181: return;
4182: }
4183:
4184: nanosleep(&attente, NULL);
4185: INCR_GRANULARITE(attente.tv_nsec);
4186:
4187: # ifndef SEMAPHORES_NOMMES
4188: while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
4189: # else
4190: while(sem_wait((*s_etat_processus).semaphore_fork) != 0)
4191: # endif
4192: {
4193: if (errno != EINTR)
4194: {
4195: (*s_etat_processus).erreur_systeme = d_es_processus;
4196: return;
4197: }
4198: }
4199: }
4200:
4201: if ((*s_etat_processus).profilage == d_vrai)
4202: {
4203: profilage(s_etat_processus, NULL);
4204: }
4205:
4206: return;
4207: }
4208:
4209: // vim: ts=4
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