1: /*
2: ================================================================================
3: RPL/2 (R) version 4.0.18
4: Copyright (C) 1989-2010 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) ||
230: ((*s_objet).type == REL))
231: {
232: if ((*s_objet).type == INT)
233: {
234: attente = (real8) (*((integer8 *) (*s_objet).objet));
235: }
236: else
237: {
238: attente = (*((real8 *) (*s_objet).objet));
239: }
240:
241: if (attente < 0)
242: {
243: liberation(s_etat_processus, s_objet);
244:
245: (*s_etat_processus).erreur_execution = d_ex_argument_invalide;
246: return;
247: }
248:
249: temporisation.tv_sec = (long) floor((double) attente);
250: temporisation.tv_nsec = (attente - temporisation.tv_sec) *
251: (long) 1000000000;
252:
253: if ((*s_etat_processus).profilage == d_vrai)
254: {
255: profilage(s_etat_processus, "Sleep function (WAIT)");
256:
257: if ((*s_etat_processus).erreur_systeme != d_es)
258: {
259: return;
260: }
261: }
262:
263: do
264: {
265: # ifndef SEMAPHORES_NOMMES
266: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
267: {
268: (*s_etat_processus).erreur_systeme = d_es_processus;
269: return;
270: }
271: # else
272: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
273: {
274: (*s_etat_processus).erreur_systeme = d_es_processus;
275: return;
276: }
277: # endif
278:
279: code_retour = nanosleep(&temporisation, &temporisation);
280: erreur = errno;
281:
282: # ifndef SEMAPHORES_NOMMES
283: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
284: # else
285: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
286: # endif
287: {
288: if (errno != EINTR)
289: {
290: (*s_etat_processus).erreur_systeme = d_es_processus;
291: return;
292: }
293: }
294:
295: scrutation_injection(s_etat_processus);
296:
297: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
298: {
299: affectation_interruptions_logicielles(s_etat_processus);
300: }
301:
302: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
303: {
304: traitement_interruptions_logicielles(s_etat_processus);
305: }
306: } while(((code_retour == -1) && (erreur == EINTR))
307: && ((*s_etat_processus).var_volatile_requete_arret == 0));
308:
309: if ((*s_etat_processus).profilage == d_vrai)
310: {
311: profilage(s_etat_processus, NULL);
312: }
313: }
314: else
315: {
316: liberation(s_etat_processus, s_objet);
317:
318: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
319: return;
320: }
321:
322: liberation(s_etat_processus, s_objet);
323:
324: return;
325: }
326:
327:
328: /*
329: ================================================================================
330: Fonction 'wireframe' (passe en mode d'affichage échantillonné)
331: ================================================================================
332: Entrées : structure processus
333: --------------------------------------------------------------------------------
334: Sorties :
335: --------------------------------------------------------------------------------
336: Effets de bord : néant
337: ================================================================================
338: */
339:
340: void
341: instruction_wireframe(struct_processus *s_etat_processus)
342: {
343: (*s_etat_processus).erreur_execution = d_ex;
344:
345: if ((*s_etat_processus).affichage_arguments == 'Y')
346: {
347: printf("\n WIREFRAME ");
348:
349: if ((*s_etat_processus).langue == 'F')
350: {
351: printf("(graphique tridimensionnel grillagé)\n\n");
352: printf(" Aucun argument\n");
353: }
354: else
355: {
356: printf("(wireframe 3D graph)\n\n");
357: printf(" No argument\n");
358: }
359:
360: return;
361: }
362: else if ((*s_etat_processus).test_instruction == 'Y')
363: {
364: (*s_etat_processus).nombre_arguments = -1;
365: return;
366: }
367:
368: strcpy((*s_etat_processus).type_trace_eq, "GRILLE 3D");
369:
370: return;
371: }
372:
373:
374: /*
375: ================================================================================
376: Fonction 'write'
377: ================================================================================
378: Entrées : structure processus
379: --------------------------------------------------------------------------------
380: Sorties :
381: --------------------------------------------------------------------------------
382: Effets de bord : néant
383: ================================================================================
384: */
385:
386: void
387: instruction_write(struct_processus *s_etat_processus)
388: {
389: const char *queue;
390:
391: int adresse[16];
392: int port;
393:
394: integer8 clef;
395: integer8 compteur;
396: integer8 id;
397: integer8 ordre;
398:
399: logical1 mise_a_jour;
400:
401: long longueur_effective;
402: long recursivite;
403:
404: sqlite3_stmt *ppStmt;
405:
406: ssize_t ios;
407:
408: struct_descripteur_fichier *descripteur;
409:
410: struct_liste_chainee *l_element_courant;
411: struct_liste_chainee *l_element_courant_format;
412:
413: struct_objet *s_format;
414: struct_objet *s_element;
415: struct_objet *s_objet_argument_1;
416: struct_objet *s_objet_argument_2;
417: struct_objet *s_objet_argument_3;
418:
419: struct sigaction action;
420: struct sigaction registre;
421:
422: struct sockaddr_in adresse_ipv4;
423: # ifdef IPV6
424: struct sockaddr_in6 adresse_ipv6;
425: # endif
426: struct sockaddr_un adresse_unix;
427:
428: struct flock lock;
429:
430: uint32_t calcul_adresse;
431:
432: unsigned char *chaine;
433: unsigned char *chaine_utf8;
434: unsigned char *clef_utf8;
435: unsigned char *commande;
436:
437: unsigned long i;
438:
439: (*s_etat_processus).erreur_execution = d_ex;
440:
441: if ((*s_etat_processus).affichage_arguments == 'Y')
442: {
443: printf("\n WRITE ");
444:
445: if ((*s_etat_processus).langue == 'F')
446: {
447: printf("(écriture d'un enregistrement d'un fichier)\n\n");
448: }
449: else
450: {
451: printf("(write a record of a file)\n\n");
452: }
453:
454: printf(" 2: %s\n", d_LST);
455: printf(" 1: %s, %s\n\n", d_FCH, d_SCK);
456:
457: printf(" 3: %s\n", d_LST);
458: printf(" 2: %s\n", d_INT);
459: printf(" 1: %s\n", d_FCH);
460: return;
461: }
462: else if ((*s_etat_processus).test_instruction == 'Y')
463: {
464: (*s_etat_processus).nombre_arguments = -1;
465: return;
466: }
467:
468: if (test_cfsf(s_etat_processus, 31) == d_vrai)
469: {
470: if ((*s_etat_processus).l_base_pile == NULL)
471: {
472: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
473: return;
474: }
475:
476: if ((*(*(*s_etat_processus).l_base_pile).donnee).type == FCH)
477: {
478: if ((*((struct_fichier *) (*(*(*s_etat_processus).l_base_pile)
479: .donnee).objet)).acces == 'D')
480: {
481: if (empilement_pile_last(s_etat_processus, 3) == d_erreur)
482: {
483: return;
484: }
485: }
486: else
487: {
488: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
489: {
490: return;
491: }
492: }
493: }
494: else
495: {
496: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
497: {
498: return;
499: }
500: }
501: }
502:
503: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
504: &s_objet_argument_1) == d_erreur)
505: {
506: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
507: return;
508: }
509:
510: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
511: &s_objet_argument_2) == d_erreur)
512: {
513: liberation(s_etat_processus, s_objet_argument_1);
514:
515: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
516: return;
517: }
518:
519: if ((*s_objet_argument_1).type == FCH)
520: {
521: if ((descripteur = descripteur_fichier(s_etat_processus,
522: (struct_fichier *) (*s_objet_argument_1).objet)) == NULL)
523: {
524: return;
525: }
526:
527: /*
528: * Vérification des verrous
529: */
530:
531: lock.l_type = F_WRLCK;
532: lock.l_whence = SEEK_SET;
533: lock.l_start = 0;
534: lock.l_len = 0;
535: lock.l_pid = getpid();
536: recursivite = 0;
537:
538: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
539: == -1)
540: {
541: liberation(s_etat_processus, s_objet_argument_2);
542: liberation(s_etat_processus, s_objet_argument_1);
543:
544: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
545: return;
546: }
547:
548: if (lock.l_type != F_UNLCK)
549: {
550: liberation(s_etat_processus, s_objet_argument_2);
551: liberation(s_etat_processus, s_objet_argument_1);
552:
553: (*s_etat_processus).erreur_execution =
554: d_ex_fichier_verrouille;
555: return;
556: }
557:
558: /*
559: * Vérification de l'autorisation d'écriture
560: */
561:
562: if ((*((struct_fichier *) (*s_objet_argument_1).objet))
563: .protection == 'R')
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 = d_ex_erreur_acces_fichier;
569: return;
570: }
571:
572: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire == 'N')
573: {
574: /*
575: * Fichiers formatés
576: */
577:
578: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
579: == 'S')
580: {
581: if ((*s_objet_argument_2).type != LST)
582: {
583: liberation(s_etat_processus, s_objet_argument_2);
584: liberation(s_etat_processus, s_objet_argument_1);
585:
586: (*s_etat_processus).erreur_execution =
587: d_ex_erreur_type_argument;
588: return;
589: }
590:
591: if ((chaine = formateur_fichier(s_etat_processus,
592: s_objet_argument_2, (*((struct_fichier *)
593: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
594: &longueur_effective, &recursivite)) == NULL)
595: {
596: liberation(s_etat_processus, s_objet_argument_2);
597: liberation(s_etat_processus, s_objet_argument_1);
598:
599: return;
600: }
601:
602: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
603:
604: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
605: != 0)
606: {
607: liberation(s_etat_processus, s_objet_argument_2);
608: liberation(s_etat_processus, s_objet_argument_1);
609:
610: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
611: return;
612: }
613:
614: if ((chaine_utf8 = transliteration(s_etat_processus,
615: chaine, d_locale, "UTF-8")) == NULL)
616: {
617: free(chaine);
618:
619: liberation(s_etat_processus, s_objet_argument_2);
620: liberation(s_etat_processus, s_objet_argument_1);
621:
622: return;
623: }
624:
625: free(chaine);
626:
627: if (fprintf((*descripteur).descripteur_c, "%s\n", chaine_utf8)
628: < 0)
629: {
630: free(chaine_utf8);
631:
632: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
633: return;
634: }
635:
636: free(chaine_utf8);
637: }
638: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
639: == 'D')
640: {
641: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
642:
643: if ((*s_objet_argument_2).type != INT)
644: {
645: liberation(s_etat_processus, s_objet_argument_2);
646: liberation(s_etat_processus, s_objet_argument_1);
647:
648: (*s_etat_processus).erreur_execution =
649: d_ex_erreur_type_argument;
650: return;
651: }
652:
653: if (depilement(s_etat_processus, &((*s_etat_processus)
654: .l_base_pile), &s_objet_argument_3) == d_erreur)
655: {
656: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
657: return;
658: }
659:
660: if ((*s_objet_argument_3).type != LST)
661: {
662: liberation(s_etat_processus, s_objet_argument_3);
663: liberation(s_etat_processus, s_objet_argument_2);
664: liberation(s_etat_processus, s_objet_argument_1);
665:
666: (*s_etat_processus).erreur_execution =
667: d_ex_erreur_type_argument;
668: return;
669: }
670:
671: // Modification ou création d'un nouvel enregistrement
672:
673: if ((chaine = formateur_fichier(s_etat_processus,
674: s_objet_argument_3, (*((struct_fichier *)
675: (*s_objet_argument_1).objet)).format, 0, 0, ' ',
676: 'F', &longueur_effective, &recursivite)) == NULL)
677: {
678: liberation(s_etat_processus, s_objet_argument_3);
679: liberation(s_etat_processus, s_objet_argument_2);
680: liberation(s_etat_processus, s_objet_argument_1);
681:
682: return;
683: }
684:
685: if ((chaine_utf8 = transliteration(s_etat_processus,
686: chaine, d_locale, "UTF-8")) == NULL)
687: {
688: free(chaine);
689:
690: liberation(s_etat_processus, s_objet_argument_3);
691: liberation(s_etat_processus, s_objet_argument_2);
692: liberation(s_etat_processus, s_objet_argument_1);
693:
694: return;
695: }
696:
697: free(chaine);
698:
699: if (alsprintf(&commande, "insert or replace into data "
700: "(id, data) values (%lld, '%s')", (*((integer8 *)
701: (*s_objet_argument_2).objet)), chaine_utf8) < 0)
702: {
703: (*s_etat_processus).erreur_systeme =
704: d_es_allocation_memoire;
705: return;
706: }
707:
708: free(chaine_utf8);
709:
710: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
711: commande, strlen(commande), &ppStmt, &queue)
712: != SQLITE_OK)
713: {
714: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
715: return;
716: }
717:
718: if (sqlite3_step(ppStmt) != SQLITE_DONE)
719: {
720: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
721: return;
722: }
723:
724: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
725: {
726: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
727: return;
728: }
729:
730: liberation(s_etat_processus, s_objet_argument_3);
731: free(commande);
732: }
733: else // Fichiers indexés
734: {
735: BUG(((*descripteur).type != 'S'), uprintf("Bad filetype !\n"));
736:
737: if ((*s_objet_argument_2).type != LST)
738: {
739: liberation(s_etat_processus, s_objet_argument_2);
740: liberation(s_etat_processus, s_objet_argument_1);
741:
742: (*s_etat_processus).erreur_execution =
743: d_ex_erreur_type_argument;
744: return;
745: }
746:
747: // Récupération de la position de la clef
748:
749: if (alsprintf(&commande, "select key from control "
750: "where id = 1") < 0)
751: {
752: (*s_etat_processus).erreur_systeme =
753: d_es_allocation_memoire;
754: return;
755: }
756:
757: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
758: commande, strlen(commande), &ppStmt, &queue)
759: != SQLITE_OK)
760: {
761: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
762: return;
763: }
764:
765: if (sqlite3_step(ppStmt) != SQLITE_ROW)
766: {
767: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
768: return;
769: }
770:
771: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
772: {
773: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
774: return;
775: }
776:
777: clef = sqlite3_column_int64(ppStmt, 0);
778:
779: if (sqlite3_step(ppStmt) != SQLITE_DONE)
780: {
781: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
782: return;
783: }
784:
785: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
786: {
787: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
788: return;
789: }
790:
791: free(commande);
792:
793: l_element_courant = (struct_liste_chainee *)
794: (*s_objet_argument_2).objet;
795: l_element_courant_format = (struct_liste_chainee *)
796: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
797: .format).objet;
798: compteur = 1;
799:
800: while((l_element_courant != NULL) &&
801: (l_element_courant_format != NULL))
802: {
803: if (compteur == clef)
804: {
805: break;
806: }
807:
808: l_element_courant = (*l_element_courant).suivant;
809: l_element_courant_format = (*l_element_courant_format)
810: .suivant;
811: compteur++;
812: }
813:
814: if ((l_element_courant == NULL) ||
815: (l_element_courant_format == NULL))
816: {
817: (*s_etat_processus).erreur_execution =
818: d_ex_clef_inexistante;
819:
820: liberation(s_etat_processus, s_objet_argument_2);
821: liberation(s_etat_processus, s_objet_argument_1);
822:
823: return;
824: }
825:
826: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
827: {
828: (*s_etat_processus).erreur_systeme =
829: d_es_allocation_memoire;
830: return;
831: }
832:
833: if (((*s_element).objet = allocation_maillon(s_etat_processus))
834: == NULL)
835: {
836: (*s_etat_processus).erreur_systeme =
837: d_es_allocation_memoire;
838: return;
839: }
840:
841: (*((struct_liste_chainee *) (*s_element).objet)).suivant = NULL;
842:
843: if (((*((struct_liste_chainee *) (*s_element).objet))
844: .donnee = copie_objet(s_etat_processus,
845: (*l_element_courant).donnee, 'N')) == NULL)
846: {
847: (*s_etat_processus).erreur_systeme =
848: d_es_allocation_memoire;
849: return;
850: }
851:
852: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
853: {
854: (*s_etat_processus).erreur_systeme =
855: d_es_allocation_memoire;
856: return;
857: }
858:
859: if (((*s_format).objet = allocation_maillon(s_etat_processus))
860: == NULL)
861: {
862: (*s_etat_processus).erreur_systeme =
863: d_es_allocation_memoire;
864: return;
865: }
866:
867: (*((struct_liste_chainee *) (*s_format).objet)).suivant = NULL;
868:
869: if (((*((struct_liste_chainee *) (*s_format).objet))
870: .donnee = copie_objet(s_etat_processus,
871: (*l_element_courant_format).donnee, 'N')) == NULL)
872: {
873: (*s_etat_processus).erreur_systeme =
874: d_es_allocation_memoire;
875: return;
876: }
877:
878: if ((chaine = formateur_fichier(s_etat_processus,
879: s_element, s_format, 0, 0, ' ',
880: 'F', &longueur_effective, &recursivite)) == NULL)
881: {
882: liberation(s_etat_processus, s_element);
883: liberation(s_etat_processus, s_format);
884: liberation(s_etat_processus, s_objet_argument_2);
885: liberation(s_etat_processus, s_objet_argument_1);
886:
887: return;
888: }
889:
890: liberation(s_etat_processus, s_element);
891: liberation(s_etat_processus, s_format);
892:
893: if ((clef_utf8 = transliteration(s_etat_processus,
894: chaine, d_locale, "UTF-8")) == NULL)
895: {
896: liberation(s_etat_processus, s_objet_argument_2);
897: liberation(s_etat_processus, s_objet_argument_1);
898:
899: return;
900: }
901:
902: free(chaine);
903:
904: // Récupération de l'identifiant de la clef
905:
906: if (alsprintf(&commande, "select id from key where key = "
907: "'%s'", clef_utf8) < 0)
908: {
909: (*s_etat_processus).erreur_systeme =
910: d_es_allocation_memoire;
911: return;
912: }
913:
914: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
915: commande, strlen(commande), &ppStmt, &queue)
916: != SQLITE_OK)
917: {
918: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
919: return;
920: }
921:
922: switch(sqlite3_step(ppStmt))
923: {
924: case SQLITE_ROW:
925: {
926: // Une clef existe.
927:
928: mise_a_jour = d_vrai;
929: break;
930: }
931:
932: case SQLITE_DONE:
933: {
934: // Aucune clef n'existe.
935:
936: mise_a_jour = d_faux;
937:
938: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
939: {
940: (*s_etat_processus).erreur_systeme =
941: d_es_erreur_fichier;
942: return;
943: }
944:
945: free(commande);
946:
947: if (alsprintf(&commande, "insert into key "
948: "(key) values ('%s')", clef_utf8) < 0)
949: {
950: (*s_etat_processus).erreur_systeme =
951: d_es_allocation_memoire;
952: return;
953: }
954:
955: if (sqlite3_prepare_v2((*descripteur)
956: .descripteur_sqlite,
957: commande, strlen(commande), &ppStmt, &queue)
958: != SQLITE_OK)
959: {
960: (*s_etat_processus).erreur_systeme =
961: d_es_erreur_fichier;
962: return;
963: }
964:
965: if (sqlite3_step(ppStmt) != SQLITE_DONE)
966: {
967: (*s_etat_processus).erreur_systeme =
968: d_es_erreur_fichier;
969: return;
970: }
971:
972: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
973: {
974: (*s_etat_processus).erreur_systeme =
975: d_es_erreur_fichier;
976: return;
977: }
978:
979: free(commande);
980:
981: if (alsprintf(&commande, "select id from key "
982: "where key = '%s'", clef_utf8) < 0)
983: {
984: (*s_etat_processus).erreur_systeme =
985: d_es_allocation_memoire;
986: return;
987: }
988:
989: if (sqlite3_prepare_v2((*descripteur)
990: .descripteur_sqlite,
991: commande, strlen(commande), &ppStmt, &queue)
992: != SQLITE_OK)
993: {
994: (*s_etat_processus).erreur_systeme =
995: d_es_erreur_fichier;
996: return;
997: }
998:
999: if (sqlite3_step(ppStmt) != SQLITE_ROW)
1000: {
1001: (*s_etat_processus).erreur_systeme =
1002: d_es_erreur_fichier;
1003: return;
1004: }
1005:
1006: break;
1007: }
1008:
1009: default:
1010: {
1011: (*s_etat_processus).erreur_systeme =
1012: d_es_erreur_fichier;
1013: return;
1014: }
1015: }
1016:
1017: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
1018: {
1019: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1020: return;
1021: }
1022:
1023: id = sqlite3_column_int64(ppStmt, 0);
1024:
1025: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1026: {
1027: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1028: return;
1029: }
1030:
1031: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1032: {
1033: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1034: return;
1035: }
1036:
1037: free(commande);
1038:
1039: // Modification de la clef
1040:
1041: if (mise_a_jour == d_vrai)
1042: {
1043: if (alsprintf(&commande, "update key set key = '%s' where "
1044: "id = %lld", clef_utf8, id) < 0)
1045: {
1046: (*s_etat_processus).erreur_systeme =
1047: d_es_allocation_memoire;
1048: return;
1049: }
1050:
1051: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1052: commande, strlen(commande), &ppStmt, &queue)
1053: != SQLITE_OK)
1054: {
1055: (*s_etat_processus).erreur_systeme =
1056: d_es_erreur_fichier;
1057: return;
1058: }
1059:
1060: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1061: {
1062: (*s_etat_processus).erreur_systeme =
1063: d_es_erreur_fichier;
1064: return;
1065: }
1066:
1067: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1068: {
1069: (*s_etat_processus).erreur_systeme =
1070: d_es_erreur_fichier;
1071: return;
1072: }
1073:
1074: free(commande);
1075: }
1076:
1077: // Effacement de l'enregistrement existant
1078:
1079: if (alsprintf(&commande, "delete from data where "
1080: "key_id = %lld", id) < 0)
1081: {
1082: (*s_etat_processus).erreur_systeme =
1083: d_es_allocation_memoire;
1084: return;
1085: }
1086:
1087: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1088: commande, strlen(commande), &ppStmt, &queue)
1089: != SQLITE_OK)
1090: {
1091: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1092: return;
1093: }
1094:
1095: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1096: {
1097: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1098: return;
1099: }
1100:
1101: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1102: {
1103: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1104: return;
1105: }
1106:
1107: free(commande);
1108:
1109: // Modification ou création d'un nouvel enregistrement
1110:
1111: l_element_courant = (struct_liste_chainee *)
1112: (*s_objet_argument_2).objet;
1113: l_element_courant_format = (struct_liste_chainee *)
1114: (*(*((struct_fichier *) (*s_objet_argument_1).objet))
1115: .format).objet;
1116: compteur = 1;
1117: ordre = 1;
1118:
1119: while((l_element_courant != NULL) &&
1120: (l_element_courant_format != NULL))
1121: {
1122: if (compteur == clef)
1123: {
1124: l_element_courant = (*l_element_courant).suivant;
1125: l_element_courant_format = (*l_element_courant_format)
1126: .suivant;
1127: compteur++;
1128: continue;
1129: }
1130:
1131: if ((s_element = allocation(s_etat_processus, LST)) == NULL)
1132: {
1133: (*s_etat_processus).erreur_systeme =
1134: d_es_allocation_memoire;
1135: return;
1136: }
1137:
1138: if (((*s_element).objet =
1139: allocation_maillon(s_etat_processus)) == NULL)
1140: {
1141: (*s_etat_processus).erreur_systeme =
1142: d_es_allocation_memoire;
1143: return;
1144: }
1145:
1146: (*((struct_liste_chainee *) (*s_element).objet)).suivant
1147: = NULL;
1148:
1149: if ((s_format = allocation(s_etat_processus, LST)) == NULL)
1150: {
1151: (*s_etat_processus).erreur_systeme =
1152: d_es_allocation_memoire;
1153: return;
1154: }
1155:
1156: if (((*s_format).objet =
1157: allocation_maillon(s_etat_processus)) == NULL)
1158: {
1159: (*s_etat_processus).erreur_systeme =
1160: d_es_allocation_memoire;
1161: return;
1162: }
1163:
1164: (*((struct_liste_chainee *) (*s_format).objet)).suivant
1165: = NULL;
1166:
1167: if (((*((struct_liste_chainee *) (*s_element).objet))
1168: .donnee = copie_objet(s_etat_processus,
1169: (*l_element_courant).donnee, 'N')) == NULL)
1170: {
1171: (*s_etat_processus).erreur_systeme =
1172: d_es_allocation_memoire;
1173: return;
1174: }
1175:
1176: if (((*((struct_liste_chainee *) (*s_format).objet))
1177: .donnee = copie_objet(s_etat_processus,
1178: (*l_element_courant_format).donnee, 'N')) == NULL)
1179: {
1180: (*s_etat_processus).erreur_systeme =
1181: d_es_allocation_memoire;
1182: return;
1183: }
1184:
1185: if ((chaine = formateur_fichier(s_etat_processus,
1186: s_element, s_format, 0, 0, ' ',
1187: 'F', &longueur_effective, &recursivite)) == NULL)
1188: {
1189: free(clef_utf8);
1190:
1191: liberation(s_etat_processus, s_element);
1192: liberation(s_etat_processus, s_format);
1193: liberation(s_etat_processus, s_objet_argument_2);
1194: liberation(s_etat_processus, s_objet_argument_1);
1195:
1196: return;
1197: }
1198:
1199: if ((chaine_utf8 = transliteration(s_etat_processus,
1200: chaine, d_locale, "UTF-8")) == NULL)
1201: {
1202: free(clef_utf8);
1203: free(chaine);
1204:
1205: liberation(s_etat_processus, s_objet_argument_2);
1206: liberation(s_etat_processus, s_objet_argument_1);
1207:
1208: return;
1209: }
1210:
1211: free(chaine);
1212:
1213: if (alsprintf(&commande, "insert into data "
1214: "(data, key_id, sequence) values "
1215: "('%s', %lld, %lld)", chaine_utf8, id, ordre) < 0)
1216: {
1217: (*s_etat_processus).erreur_systeme =
1218: d_es_allocation_memoire;
1219: return;
1220: }
1221:
1222: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1223: commande, strlen(commande), &ppStmt, &queue)
1224: != SQLITE_OK)
1225: {
1226: (*s_etat_processus).erreur_systeme =
1227: d_es_erreur_fichier;
1228: return;
1229: }
1230:
1231: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1232: {
1233: (*s_etat_processus).erreur_systeme =
1234: d_es_erreur_fichier;
1235: return;
1236: }
1237:
1238: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1239: {
1240: (*s_etat_processus).erreur_systeme =
1241: d_es_erreur_fichier;
1242: return;
1243: }
1244:
1245: free(commande);
1246: free(chaine_utf8);
1247:
1248: liberation(s_etat_processus, s_element);
1249: liberation(s_etat_processus, s_format);
1250:
1251: l_element_courant = (*l_element_courant).suivant;
1252: l_element_courant_format = (*l_element_courant_format)
1253: .suivant;
1254:
1255: compteur++;
1256: ordre++;
1257: }
1258:
1259: free(clef_utf8);
1260:
1261: if ((l_element_courant != NULL) ||
1262: (l_element_courant_format != NULL))
1263: {
1264: liberation(s_etat_processus, s_objet_argument_1);
1265: liberation(s_etat_processus, s_objet_argument_2);
1266:
1267: (*s_etat_processus).erreur_execution =
1268: d_ex_erreur_format_fichier;
1269: return;
1270: }
1271: }
1272: }
1273: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).binaire
1274: == 'Y')
1275: {
1276: /*
1277: * Fichiers non formatés
1278: */
1279:
1280: if ((chaine = formateur_fichier(s_etat_processus,
1281: s_objet_argument_2, (*((struct_fichier *)
1282: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'U',
1283: &longueur_effective, &recursivite)) == NULL)
1284: {
1285: liberation(s_etat_processus, s_objet_argument_2);
1286: liberation(s_etat_processus, s_objet_argument_1);
1287:
1288: return;
1289: }
1290:
1291: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1292: == 'S')
1293: {
1294: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1295:
1296: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
1297: != 0)
1298: {
1299: liberation(s_etat_processus, s_objet_argument_2);
1300: liberation(s_etat_processus, s_objet_argument_1);
1301:
1302: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1303: return;
1304: }
1305:
1306: if (fwrite(chaine, sizeof(unsigned char), longueur_effective,
1307: (*descripteur).descripteur_c) !=
1308: (size_t) longueur_effective)
1309: {
1310: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1311: return;
1312: }
1313: }
1314: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
1315: == 'D')
1316: {
1317: }
1318: else
1319: {
1320: /* Fichiers indexés : panique totale ! */
1321: }
1322:
1323: free(chaine);
1324: }
1325: else
1326: {
1327: /*
1328: * Fichiers de type FLOW
1329: */
1330: }
1331: }
1332: else if (((*s_objet_argument_2).type == LST) &&
1333: ((*s_objet_argument_1).type == SCK))
1334: {
1335: /*
1336: * Vérification de l'autorisation d'écriture
1337: */
1338:
1339: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1340: .protection == 'R')
1341: {
1342: liberation(s_etat_processus, s_objet_argument_2);
1343: liberation(s_etat_processus, s_objet_argument_1);
1344:
1345: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
1346: return;
1347: }
1348:
1349: if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire == 'N')
1350: {
1351: /*
1352: * Sockets formatées
1353: */
1354:
1355: if ((chaine = formateur_fichier(s_etat_processus,
1356: s_objet_argument_2, (*((struct_socket *)
1357: (*s_objet_argument_1).objet)).format, 0, 0, ' ', 'F',
1358: &longueur_effective, &recursivite)) == NULL)
1359: {
1360: liberation(s_etat_processus, s_objet_argument_2);
1361: liberation(s_etat_processus, s_objet_argument_1);
1362:
1363: return;
1364: }
1365:
1366: if ((strcmp((*((struct_socket *) (*s_objet_argument_1).objet)).type,
1367: "STREAM") == 0) || (strcmp((*((struct_socket *)
1368: (*s_objet_argument_1).objet)).type,
1369: "SEQUENTIAL DATAGRAM") == 0))
1370: { // Sockets connectées
1371:
1372: action.sa_handler = SIG_IGN;
1373: action.sa_flags = SA_ONSTACK;
1374:
1375: if (sigaction(SIGPIPE, &action, ®istre) != 0)
1376: {
1377: (*s_etat_processus).erreur_systeme = d_es_signal;
1378: return;
1379: }
1380:
1381: # ifndef SEMAPHORES_NOMMES
1382: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1383: # else
1384: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1385: # endif
1386: {
1387: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1388: {
1389: (*s_etat_processus).erreur_systeme = d_es_signal;
1390: return;
1391: }
1392:
1393: (*s_etat_processus).erreur_systeme = d_es_processus;
1394: return;
1395: }
1396:
1397: if (send((*((struct_socket *) (*s_objet_argument_1).objet))
1398: .socket, chaine, strlen(chaine), 0) < 0)
1399: {
1400: ios = errno;
1401:
1402: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1403: {
1404: (*s_etat_processus).erreur_systeme = d_es_signal;
1405: return;
1406: }
1407:
1408: # ifndef SEMAPHORES_NOMMES
1409: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1410: # else
1411: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1412: # endif
1413: {
1414: if (errno != EINTR)
1415: {
1416: (*s_etat_processus).erreur_systeme = d_es_processus;
1417: return;
1418: }
1419: }
1420:
1421: if (ios == EPIPE)
1422: {
1423: (*s_etat_processus).erreur_execution =
1424: d_ex_erreur_acces_fichier;
1425: return;
1426: }
1427:
1428: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1429: return;
1430: }
1431:
1432: # ifndef SEMAPHORES_NOMMES
1433: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1434: # else
1435: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1436: # endif
1437: {
1438: if (errno != EINTR)
1439: {
1440: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1441: {
1442: (*s_etat_processus).erreur_systeme = d_es_signal;
1443: return;
1444: }
1445:
1446: (*s_etat_processus).erreur_systeme = d_es_processus;
1447: return;
1448: }
1449: }
1450:
1451: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
1452: {
1453: (*s_etat_processus).erreur_systeme = d_es_signal;
1454: return;
1455: }
1456: }
1457: else
1458: { // Sockets non connectées
1459:
1460: /*
1461: * Vérification de l'adresse distante
1462: */
1463:
1464: if (strcmp((*((struct_socket *) (*s_objet_argument_1).objet))
1465: .adresse_distante, "") == 0)
1466: {
1467: liberation(s_etat_processus, s_objet_argument_1);
1468: liberation(s_etat_processus, s_objet_argument_2);
1469:
1470: (*s_etat_processus).erreur_execution =
1471: d_ex_erreur_acces_fichier;
1472: return;
1473: }
1474:
1475: /*
1476: * Création de l'adresse logique
1477: */
1478:
1479: if ((*((struct_socket *) (*s_objet_argument_1).objet))
1480: .domaine == PF_UNIX)
1481: {
1482: adresse_unix.sun_family = AF_UNIX;
1483: strncpy(adresse_unix.sun_path, (*((struct_socket *)
1484: (*s_objet_argument_1).objet)).adresse_distante,
1485: 108);
1486: adresse_unix.sun_path[108 - 1] = d_code_fin_chaine;
1487:
1488: # ifndef SEMAPHORES_NOMMES
1489: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1490: {
1491: (*s_etat_processus).erreur_systeme = d_es_processus;
1492: return;
1493: }
1494: # else
1495: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1496: {
1497: (*s_etat_processus).erreur_systeme = d_es_processus;
1498: return;
1499: }
1500: # endif
1501:
1502: if (sendto((*((struct_socket *)
1503: (*s_objet_argument_1).objet)).socket, chaine,
1504: strlen(chaine), 0, (struct sockaddr *)
1505: &adresse_unix, sizeof(adresse_unix)) < 0)
1506: {
1507: # ifndef SEMAPHORES_NOMMES
1508: while(sem_wait(&((*s_etat_processus)
1509: .semaphore_fork)) == -1)
1510: # else
1511: while(sem_wait((*s_etat_processus)
1512: .semaphore_fork) == -1)
1513: # endif
1514: {
1515: if (errno != EINTR)
1516: {
1517: (*s_etat_processus).erreur_systeme =
1518: d_es_processus;
1519: return;
1520: }
1521: }
1522:
1523: (*s_etat_processus).erreur_systeme =
1524: d_es_erreur_fichier;
1525: return;
1526: }
1527:
1528: # ifndef SEMAPHORES_NOMMES
1529: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1530: # else
1531: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1532: # endif
1533: {
1534: if (errno != EINTR)
1535: {
1536: (*s_etat_processus).erreur_systeme = d_es_processus;
1537: return;
1538: }
1539: }
1540: }
1541: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1542: .domaine == PF_INET)
1543: {
1544: if (sscanf((*((struct_socket *)
1545: (*s_objet_argument_1).objet))
1546: .adresse_distante, "%d.%d.%d.%d(%d)",
1547: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1548: &(adresse[3]), &port) == 5)
1549: { // Adresse IPv4
1550: calcul_adresse = 0;
1551: for(i = 0; i < 4; calcul_adresse =
1552: (256 * calcul_adresse) + adresse[i++]);
1553:
1554: memset(&adresse_ipv4, 0, sizeof(adresse_ipv4));
1555: adresse_ipv4.sin_family = AF_INET;
1556: adresse_ipv4.sin_port = htons(port);
1557: adresse_ipv4.sin_addr.s_addr = htonl(calcul_adresse);
1558:
1559: # ifndef SEMAPHORES_NOMMES
1560: if (sem_post(&((*s_etat_processus)
1561: .semaphore_fork)) != 0)
1562: {
1563: (*s_etat_processus).erreur_systeme = d_es_processus;
1564: return;
1565: }
1566: # else
1567: if (sem_post((*s_etat_processus) .semaphore_fork) != 0)
1568: {
1569: (*s_etat_processus).erreur_systeme = d_es_processus;
1570: return;
1571: }
1572: # endif
1573:
1574: if (sendto((*((struct_socket *)
1575: (*s_objet_argument_1).objet)).socket, chaine,
1576: strlen(chaine), 0, (struct sockaddr *)
1577: &adresse_ipv4, sizeof(adresse_ipv4)) < 0)
1578: {
1579: # ifndef SEMAPHORES_NOMMES
1580: while(sem_wait(&((*s_etat_processus)
1581: .semaphore_fork)) == -1)
1582: # else
1583: while(sem_wait((*s_etat_processus)
1584: .semaphore_fork) == -1)
1585: # endif
1586: {
1587: if (errno != EINTR)
1588: {
1589: (*s_etat_processus).erreur_systeme =
1590: d_es_processus;
1591: return;
1592: }
1593: }
1594:
1595: (*s_etat_processus).erreur_systeme =
1596: d_es_erreur_fichier;
1597: return;
1598: }
1599:
1600: # ifndef SEMAPHORES_NOMMES
1601: while(sem_wait(&((*s_etat_processus)
1602: .semaphore_fork)) == -1)
1603: # else
1604: while(sem_wait((*s_etat_processus)
1605: .semaphore_fork) == -1)
1606: # endif
1607: {
1608: if (errno != EINTR)
1609: {
1610: (*s_etat_processus).erreur_systeme =
1611: d_es_processus;
1612: return;
1613: }
1614: }
1615: }
1616: else
1617: {
1618: liberation(s_etat_processus, s_objet_argument_1);
1619: liberation(s_etat_processus, s_objet_argument_2);
1620:
1621: (*s_etat_processus).erreur_execution =
1622: d_ex_erreur_parametre_fichier;
1623: return;
1624: }
1625: }
1626: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1627: .domaine == PF_INET6)
1628: {
1629: if (sscanf((*((struct_socket *) (*s_objet_argument_1)
1630: .objet)).adresse_distante, "%X:%X:%X:%X:%X:"
1631: "%X:%X:%X:%X:%X:%X:%X:%X:%X:%X:%X(%d)",
1632: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1633: &(adresse[3]), &(adresse[4]), &(adresse[5]),
1634: &(adresse[6]), &(adresse[7]), &(adresse[8]),
1635: &(adresse[9]), &(adresse[10]), &(adresse[11]),
1636: &(adresse[12]), &(adresse[13]), &(adresse[14]),
1637: &(adresse[15]), &port)== 17)
1638: { // Adresse IPv6
1639: # ifdef IPV6
1640: memset(&adresse_ipv6, 0, sizeof(adresse_ipv6));
1641: adresse_ipv6.sin6_family = AF_INET6;
1642: adresse_ipv6.sin6_port = htons((uint16_t) port);
1643:
1644: for(i = 0; i < 16;
1645: adresse_ipv6.sin6_addr.s6_addr[i] =
1646: adresse[i], i++);
1647:
1648: # ifndef SEMAPHORES_NOMMES
1649: if (sem_post(&((*s_etat_processus)
1650: .semaphore_fork)) != 0)
1651: {
1652: (*s_etat_processus).erreur_systeme = d_es_processus;
1653: return;
1654: }
1655: # else
1656: if (sem_post((*s_etat_processus) .semaphore_fork) != 0)
1657: {
1658: (*s_etat_processus).erreur_systeme = d_es_processus;
1659: return;
1660: }
1661: # endif
1662:
1663: if (sendto((*((struct_socket *)
1664: (*s_objet_argument_1).objet)).socket, chaine,
1665: strlen(chaine), 0, (struct sockaddr *)
1666: &adresse_ipv6, sizeof(adresse_ipv6)) < 0)
1667: {
1668: # ifndef SEMAPHORES_NOMMES
1669: while(sem_wait(&((*s_etat_processus)
1670: .semaphore_fork)) == -1)
1671: # else
1672: while(sem_wait((*s_etat_processus)
1673: .semaphore_fork) == -1)
1674: # endif
1675: {
1676: if (errno != EINTR)
1677: {
1678: (*s_etat_processus).erreur_systeme =
1679: d_es_processus;
1680: return;
1681: }
1682: }
1683:
1684: (*s_etat_processus).erreur_systeme =
1685: d_es_erreur_fichier;
1686: return;
1687: }
1688:
1689: # ifndef SEMAPHORES_NOMMES
1690: while(sem_wait(&((*s_etat_processus)
1691: .semaphore_fork)) == -1)
1692: # else
1693: while(sem_wait((*s_etat_processus)
1694: .semaphore_fork) == -1)
1695: # endif
1696: {
1697: if (errno != EINTR)
1698: {
1699: (*s_etat_processus).erreur_systeme =
1700: d_es_processus;
1701: return;
1702: }
1703: }
1704: # else
1705: if ((*s_etat_processus).langue == 'F')
1706: {
1707: printf("+++Attention : Support du protocole"
1708: " IPv6 indisponble\n");
1709: }
1710: else
1711: {
1712: printf("+++Attention : IPv6 support "
1713: "unavailable\n");
1714: }
1715: # endif
1716: }
1717: else
1718: {
1719: liberation(s_etat_processus, s_objet_argument_1);
1720: liberation(s_etat_processus, s_objet_argument_2);
1721:
1722: (*s_etat_processus).erreur_execution =
1723: d_ex_erreur_parametre_fichier;
1724: return;
1725: }
1726: }
1727: else
1728: {
1729: liberation(s_etat_processus, s_objet_argument_1);
1730: liberation(s_etat_processus, s_objet_argument_2);
1731:
1732: (*s_etat_processus).erreur_execution =
1733: d_ex_erreur_parametre_fichier;
1734: return;
1735: }
1736: }
1737:
1738: free(chaine);
1739: }
1740: else if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire
1741: == 'Y')
1742: {
1743: /*
1744: * Sockets non formatées
1745: */
1746: }
1747: else
1748: {
1749: /*
1750: * Sockets de type FLOW
1751: */
1752: }
1753: }
1754: else
1755: {
1756: liberation(s_etat_processus, s_objet_argument_2);
1757: liberation(s_etat_processus, s_objet_argument_1);
1758:
1759: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1760: return;
1761: }
1762:
1763: liberation(s_etat_processus, s_objet_argument_2);
1764: liberation(s_etat_processus, s_objet_argument_1);
1765:
1766: return;
1767: }
1768:
1769:
1770: /*
1771: ================================================================================
1772: Fonction 'wflock'
1773: ================================================================================
1774: Entrées : pointeur sur une structure struct_processus
1775: --------------------------------------------------------------------------------
1776: Sorties :
1777: --------------------------------------------------------------------------------
1778: Effets de bord : néant
1779: ================================================================================
1780: */
1781:
1782: void
1783: instruction_wflock(struct_processus *s_etat_processus)
1784: {
1785: logical1 drapeau;
1786:
1787: struct flock lock;
1788:
1789: struct timespec attente;
1790:
1791: struct_descripteur_fichier *descripteur;
1792:
1793: struct_objet *s_objet_argument_1;
1794: struct_objet *s_objet_argument_2;
1795:
1796: unsigned char *chaine;
1797: unsigned char registre_instruction_valide;
1798:
1799: attente.tv_sec = 0;
1800: attente.tv_nsec = GRANULARITE_us * 1000;
1801:
1802: (*s_etat_processus).erreur_execution = d_ex;
1803:
1804: if ((*s_etat_processus).affichage_arguments == 'Y')
1805: {
1806: printf("\n WFLOCK ");
1807:
1808: if ((*s_etat_processus).langue == 'F')
1809: {
1810: printf("(attente du positionnement d'un verrou sur un fichier)"
1811: "\n\n");
1812: }
1813: else
1814: {
1815: printf("(wait for file lock)\n\n");
1816: }
1817:
1818: printf(" 2: %s\n", d_FCH);
1819: printf(" 1: %s (READ/WRITE/NONE)\n", d_CHN);
1820:
1821: return;
1822: }
1823: else if ((*s_etat_processus).test_instruction == 'Y')
1824: {
1825: (*s_etat_processus).nombre_arguments = -1;
1826: return;
1827: }
1828:
1829: if (test_cfsf(s_etat_processus, 31) == d_vrai)
1830: {
1831: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
1832: {
1833: return;
1834: }
1835: }
1836:
1837: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1838: &s_objet_argument_1) == d_erreur)
1839: {
1840: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1841: return;
1842: }
1843:
1844: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1845: &s_objet_argument_2) == d_erreur)
1846: {
1847: liberation(s_etat_processus, s_objet_argument_1);
1848:
1849: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1850: return;
1851: }
1852:
1853: if (((*s_objet_argument_2).type == FCH) &&
1854: ((*s_objet_argument_1).type == CHN))
1855: {
1856: drapeau = d_faux;
1857:
1858: do
1859: {
1860: if ((chaine = conversion_majuscule((unsigned char *)
1861: (*s_objet_argument_1).objet)) == NULL)
1862: {
1863: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1864: return;
1865: }
1866:
1867: if (strcmp(chaine, "WRITE") == 0)
1868: {
1869: lock.l_type = F_WRLCK;
1870: }
1871: else if (strcmp(chaine, "READ") == 0)
1872: {
1873: lock.l_type = F_RDLCK;
1874: }
1875: else if (strcmp(chaine, "NONE") == 0)
1876: {
1877: lock.l_type = F_UNLCK;
1878: }
1879: else
1880: {
1881: free(chaine);
1882:
1883: liberation(s_etat_processus, s_objet_argument_1);
1884: liberation(s_etat_processus, s_objet_argument_2);
1885:
1886: (*s_etat_processus).erreur_execution = d_ex_verrou_indefini;
1887: return;
1888: }
1889:
1890: free(chaine);
1891:
1892: lock.l_whence = SEEK_SET;
1893: lock.l_start = 0;
1894: lock.l_len = 0;
1895: lock.l_pid = getpid();
1896:
1897: if ((descripteur = descripteur_fichier(s_etat_processus,
1898: (struct_fichier *) (*s_objet_argument_2).objet)) == NULL)
1899: {
1900: return;
1901: }
1902:
1903: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
1904: == -1)
1905: {
1906: liberation(s_etat_processus, s_objet_argument_1);
1907: liberation(s_etat_processus, s_objet_argument_2);
1908:
1909: (*s_etat_processus).erreur_execution = d_ex_fichier_verrouille;
1910: return;
1911: }
1912:
1913: # ifndef SEMAPHORES_NOMMES
1914: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1915: {
1916: (*s_etat_processus).erreur_systeme = d_es_processus;
1917: return;
1918: }
1919: # else
1920: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1921: {
1922: (*s_etat_processus).erreur_systeme = d_es_processus;
1923: return;
1924: }
1925: # endif
1926:
1927: # ifndef SEMAPHORES_NOMMES
1928: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1929: # else
1930: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1931: # endif
1932: {
1933: if (errno != EINTR)
1934: {
1935: (*s_etat_processus).erreur_systeme = d_es_processus;
1936: return;
1937: }
1938: }
1939:
1940: if (lock.l_type == F_UNLCK)
1941: {
1942: drapeau = d_vrai;
1943: }
1944: else
1945: {
1946: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
1947: {
1948: affectation_interruptions_logicielles(s_etat_processus);
1949: }
1950:
1951: if ((*s_etat_processus).nombre_interruptions_en_queue
1952: != 0)
1953: {
1954: registre_instruction_valide =
1955: (*s_etat_processus).instruction_valide;
1956: traitement_interruptions_logicielles(
1957: s_etat_processus);
1958: (*s_etat_processus).instruction_valide =
1959: registre_instruction_valide;
1960: }
1961:
1962: nanosleep(&attente, NULL);
1963: scrutation_injection(s_etat_processus);
1964:
1965: INCR_GRANULARITE(attente.tv_nsec);
1966: }
1967: } while((drapeau == d_faux) && ((*s_etat_processus)
1968: .var_volatile_requete_arret != -1));
1969: }
1970: else
1971: {
1972: liberation(s_etat_processus, s_objet_argument_1);
1973: liberation(s_etat_processus, s_objet_argument_2);
1974:
1975: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1976: return;
1977: }
1978:
1979: return;
1980: }
1981:
1982:
1983: /*
1984: ================================================================================
1985: Fonction 'wfproc'
1986: ================================================================================
1987: Entrées : pointeur sur une structure struct_processus
1988: --------------------------------------------------------------------------------
1989: Sorties :
1990: --------------------------------------------------------------------------------
1991: Effets de bord : néant
1992: ================================================================================
1993: */
1994:
1995: void
1996: instruction_wfproc(struct_processus *s_etat_processus)
1997: {
1998: logical1 drapeau_fin;
1999:
2000: struct_liste_chainee *l_element_courant;
2001:
2002: struct_objet *s_objet_argument;
2003:
2004: struct timespec attente;
2005:
2006: unsigned char registre_instruction_valide;
2007:
2008: (*s_etat_processus).erreur_execution = d_ex;
2009:
2010: attente.tv_sec = 0;
2011: attente.tv_nsec = GRANULARITE_us * 1000;
2012:
2013: if ((*s_etat_processus).affichage_arguments == 'Y')
2014: {
2015: printf("\n WFPROC ");
2016:
2017: if ((*s_etat_processus).langue == 'F')
2018: {
2019: printf("(attente de la fin d'un processus fils)\n\n");
2020: }
2021: else
2022: {
2023: printf("(wait for child process end)\n\n");
2024: }
2025:
2026: printf(" 1: %s\n", d_PRC);
2027:
2028: return;
2029: }
2030: else if ((*s_etat_processus).test_instruction == 'Y')
2031: {
2032: (*s_etat_processus).nombre_arguments = -1;
2033: return;
2034: }
2035:
2036: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2037: {
2038: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2039: {
2040: return;
2041: }
2042: }
2043:
2044: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2045: &s_objet_argument) == d_erreur)
2046: {
2047: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2048: return;
2049: }
2050:
2051: if ((*s_objet_argument).type == PRC)
2052: {
2053: drapeau_fin = d_faux;
2054:
2055: if ((*s_etat_processus).profilage == d_vrai)
2056: {
2057: profilage(s_etat_processus, "Interprocess or interthread "
2058: "communications (WFPROC)");
2059:
2060: if ((*s_etat_processus).erreur_systeme != d_es)
2061: {
2062: return;
2063: }
2064: }
2065:
2066: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2067: {
2068: if ((*s_etat_processus).profilage == d_vrai)
2069: {
2070: profilage(s_etat_processus, NULL);
2071: }
2072:
2073: (*s_etat_processus).erreur_systeme = d_es_processus;
2074: return;
2075: }
2076:
2077: while(drapeau_fin == d_faux)
2078: {
2079: l_element_courant = (struct_liste_chainee *)
2080: (*s_etat_processus).l_base_pile_processus;
2081:
2082: while(l_element_courant != NULL)
2083: {
2084: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2085: .donnee).objet)).thread).processus_detache == d_vrai)
2086: {
2087: if ((*(*((struct_processus_fils *)
2088: (*s_objet_argument).objet)).thread)
2089: .processus_detache == d_vrai)
2090: {
2091: if ((*(*((struct_processus_fils *)
2092: (*(*l_element_courant)
2093: .donnee).objet)).thread).pid ==
2094: (*(*((struct_processus_fils *)
2095: (*s_objet_argument).objet)).thread).pid)
2096: {
2097: break;
2098: }
2099: }
2100: }
2101: else
2102: {
2103: if ((*(*((struct_processus_fils *)
2104: (*s_objet_argument).objet)).thread)
2105: .processus_detache == d_faux)
2106: {
2107: if ((pthread_equal((*(*((struct_processus_fils *)
2108: (*(*l_element_courant).donnee).objet)).thread)
2109: .tid, (*(*((struct_processus_fils *)
2110: (*s_objet_argument).objet)).thread).tid) != 0)
2111: && ((*(*((struct_processus_fils *)
2112: (*(*l_element_courant).donnee).objet)).thread)
2113: .pid == (*(*((struct_processus_fils *)
2114: (*s_objet_argument).objet)).thread).pid))
2115: {
2116: break;
2117: }
2118: }
2119: }
2120:
2121: l_element_courant = (*l_element_courant).suivant;
2122: }
2123:
2124: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2125: {
2126: if ((*s_etat_processus).profilage == d_vrai)
2127: {
2128: profilage(s_etat_processus, NULL);
2129: }
2130:
2131: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2132: {
2133: (*s_etat_processus).erreur_systeme = d_es_processus;
2134: return;
2135: }
2136:
2137: liberation(s_etat_processus, s_objet_argument);
2138: return;
2139: }
2140:
2141: if (l_element_courant == NULL)
2142: {
2143: /*
2144: * Si l_element_courant vaut NULL, le processus n'existe plus.
2145: */
2146:
2147: drapeau_fin = d_vrai;
2148: }
2149: else
2150: {
2151: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2152: .donnee).objet)).thread).processus_detache == d_vrai)
2153: {
2154: if (kill((*(*((struct_processus_fils *)
2155: (*(*l_element_courant).donnee).objet)).thread).pid,
2156: 0) != 0)
2157: {
2158: drapeau_fin = d_vrai;
2159: }
2160: else
2161: {
2162: drapeau_fin = d_faux;
2163: }
2164: }
2165: else
2166: {
2167: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2168: (*(*l_element_courant).donnee).objet)).thread)
2169: .mutex)) != 0)
2170: {
2171: if ((*s_etat_processus).profilage == d_vrai)
2172: {
2173: profilage(s_etat_processus, NULL);
2174: }
2175:
2176: (*s_etat_processus).erreur_systeme = d_es_processus;
2177: return;
2178: }
2179:
2180: if ((*(*((struct_processus_fils *)
2181: (*(*l_element_courant).donnee).objet)).thread)
2182: .thread_actif == d_faux)
2183: {
2184: drapeau_fin = d_vrai;
2185: }
2186: else
2187: {
2188: drapeau_fin = d_faux;
2189: }
2190:
2191: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2192: (*(*l_element_courant).donnee).objet)).thread)
2193: .mutex)) != 0)
2194: {
2195: if ((*s_etat_processus).profilage == d_vrai)
2196: {
2197: profilage(s_etat_processus, NULL);
2198: }
2199:
2200: (*s_etat_processus).erreur_systeme = d_es_processus;
2201: return;
2202: }
2203: }
2204:
2205: if (drapeau_fin == d_faux)
2206: {
2207: /*
2208: * Le processus n'est pas terminé
2209: */
2210:
2211: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2212: {
2213: if ((*s_etat_processus).profilage == d_vrai)
2214: {
2215: profilage(s_etat_processus, NULL);
2216: }
2217:
2218: (*s_etat_processus).erreur_systeme =
2219: d_es_processus;
2220: return;
2221: }
2222:
2223: if ((*s_etat_processus).nombre_interruptions_non_affectees
2224: != 0)
2225: {
2226: affectation_interruptions_logicielles(s_etat_processus);
2227: }
2228:
2229: if ((*s_etat_processus).nombre_interruptions_en_queue
2230: != 0)
2231: {
2232: registre_instruction_valide =
2233: (*s_etat_processus).instruction_valide;
2234: traitement_interruptions_logicielles(
2235: s_etat_processus);
2236: (*s_etat_processus).instruction_valide =
2237: registre_instruction_valide;
2238: }
2239:
2240: # ifndef SEMAPHORES_NOMMES
2241: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2242: {
2243: (*s_etat_processus).erreur_systeme = d_es_processus;
2244: return;
2245: }
2246: # else
2247: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2248: {
2249: (*s_etat_processus).erreur_systeme = d_es_processus;
2250: return;
2251: }
2252: # endif
2253:
2254: nanosleep(&attente, NULL);
2255:
2256: # ifndef SEMAPHORES_NOMMES
2257: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2258: # else
2259: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2260: # endif
2261: {
2262: if (errno != EINTR)
2263: {
2264: (*s_etat_processus).erreur_systeme = d_es_processus;
2265: return;
2266: }
2267: }
2268:
2269: scrutation_injection(s_etat_processus);
2270:
2271: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2272: {
2273: if ((*s_etat_processus).profilage == d_vrai)
2274: {
2275: profilage(s_etat_processus, NULL);
2276: }
2277:
2278: (*s_etat_processus).erreur_systeme =
2279: d_es_processus;
2280: return;
2281: }
2282: }
2283: }
2284:
2285: INCR_GRANULARITE(attente.tv_nsec);
2286: }
2287:
2288: if ((*s_etat_processus).profilage == d_vrai)
2289: {
2290: profilage(s_etat_processus, NULL);
2291: }
2292:
2293: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2294: {
2295: (*s_etat_processus).erreur_systeme = d_es_processus;
2296: return;
2297: }
2298: }
2299: else
2300: {
2301: liberation(s_etat_processus, s_objet_argument);
2302:
2303: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2304: return;
2305: }
2306:
2307: liberation(s_etat_processus, s_objet_argument);
2308:
2309: return;
2310: }
2311:
2312:
2313: /*
2314: ================================================================================
2315: Fonction 'wfdata'
2316: ================================================================================
2317: Entrées : pointeur sur une structure struct_processus
2318: --------------------------------------------------------------------------------
2319: Sorties :
2320: --------------------------------------------------------------------------------
2321: Effets de bord : néant
2322: ================================================================================
2323: */
2324:
2325: void
2326: instruction_wfdata(struct_processus *s_etat_processus)
2327: {
2328: logical1 drapeau_fin;
2329:
2330: struct_liste_chainee *l_element_courant;
2331:
2332: struct_objet *s_objet_argument;
2333:
2334: struct timespec attente;
2335:
2336: unsigned char registre_instruction_valide;
2337:
2338: (*s_etat_processus).erreur_execution = d_ex;
2339:
2340: attente.tv_sec = 0;
2341: attente.tv_nsec = GRANULARITE_us * 1000;
2342:
2343: if ((*s_etat_processus).affichage_arguments == 'Y')
2344: {
2345: printf("\n WFDATA ");
2346:
2347: if ((*s_etat_processus).langue == 'F')
2348: {
2349: printf("(attente de données d'un processus fils)\n\n");
2350: }
2351: else
2352: {
2353: printf("(wait for data from child process)\n\n");
2354: }
2355:
2356: printf(" 1: %s\n", d_PRC);
2357:
2358: return;
2359: }
2360: else if ((*s_etat_processus).test_instruction == 'Y')
2361: {
2362: (*s_etat_processus).nombre_arguments = -1;
2363: return;
2364: }
2365:
2366: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2367: {
2368: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2369: {
2370: return;
2371: }
2372: }
2373:
2374: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2375: &s_objet_argument) == d_erreur)
2376: {
2377: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2378: return;
2379: }
2380:
2381: if ((*s_objet_argument).type == PRC)
2382: {
2383: drapeau_fin = d_faux;
2384:
2385: if ((*s_etat_processus).profilage == d_vrai)
2386: {
2387: profilage(s_etat_processus, "Interprocess or interthread "
2388: "communications (WFDATA)");
2389:
2390: if ((*s_etat_processus).erreur_systeme != d_es)
2391: {
2392: return;
2393: }
2394: }
2395:
2396: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2397: {
2398: if ((*s_etat_processus).profilage == d_vrai)
2399: {
2400: profilage(s_etat_processus, NULL);
2401: }
2402:
2403: (*s_etat_processus).erreur_systeme = d_es_processus;
2404: return;
2405: }
2406:
2407: while(drapeau_fin == d_faux)
2408: {
2409: l_element_courant = (struct_liste_chainee *)
2410: (*s_etat_processus).l_base_pile_processus;
2411:
2412: while(l_element_courant != NULL)
2413: {
2414: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2415: .donnee).objet)).thread).processus_detache == d_vrai)
2416: {
2417: if (((*(*((struct_processus_fils *) (*(*l_element_courant)
2418: .donnee).objet)).thread).pid ==
2419: (*(*((struct_processus_fils *)
2420: (*s_objet_argument).objet)).thread).pid)
2421: && ((*(*((struct_processus_fils *)
2422: (*s_objet_argument).objet)).thread)
2423: .processus_detache == d_vrai))
2424: {
2425: break;
2426: }
2427: }
2428: else
2429: {
2430: if ((pthread_equal((*(*((struct_processus_fils *)
2431: (*(*l_element_courant).donnee).objet)).thread).tid,
2432: (*(*((struct_processus_fils *) (*s_objet_argument)
2433: .objet)).thread).tid) != 0) &&
2434: ((*(*((struct_processus_fils *)
2435: (*(*l_element_courant).donnee).objet)).thread).pid
2436: == (*(*((struct_processus_fils *)
2437: (*s_objet_argument).objet)).thread).pid) &&
2438: ((*(*((struct_processus_fils *)
2439: (*s_objet_argument).objet)).thread)
2440: .processus_detache == d_faux))
2441: {
2442: break;
2443: }
2444: }
2445:
2446: l_element_courant = (*l_element_courant).suivant;
2447: }
2448:
2449: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2450: {
2451: if ((*s_etat_processus).profilage == d_vrai)
2452: {
2453: profilage(s_etat_processus, NULL);
2454: }
2455:
2456: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2457: {
2458: (*s_etat_processus).erreur_systeme = d_es_processus;
2459: return;
2460: }
2461:
2462: liberation(s_etat_processus, s_objet_argument);
2463: return;
2464: }
2465:
2466: if (l_element_courant != NULL)
2467: {
2468: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2469: (*(*l_element_courant).donnee).objet)).thread).mutex))
2470: != 0)
2471: {
2472: (*s_etat_processus).erreur_systeme = d_es_processus;
2473: return;
2474: }
2475:
2476: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2477: .donnee).objet)).thread).nombre_objets_dans_pipe != 0)
2478: {
2479: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2480: (*(*l_element_courant).donnee).objet)).thread)
2481: .mutex)) != 0)
2482: {
2483: (*s_etat_processus).erreur_systeme = d_es_processus;
2484: return;
2485: }
2486:
2487: drapeau_fin = d_vrai;
2488: }
2489: else
2490: {
2491: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2492: (*(*l_element_courant).donnee).objet)).thread)
2493: .mutex)) != 0)
2494: {
2495: (*s_etat_processus).erreur_systeme = d_es_processus;
2496: return;
2497: }
2498:
2499: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2500: {
2501: if ((*s_etat_processus).profilage == d_vrai)
2502: {
2503: profilage(s_etat_processus, NULL);
2504: }
2505:
2506: (*s_etat_processus).erreur_systeme =
2507: d_es_processus;
2508: return;
2509: }
2510:
2511: # ifndef SEMAPHORES_NOMMES
2512: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2513: {
2514: (*s_etat_processus).erreur_systeme = d_es_processus;
2515: return;
2516: }
2517: # else
2518: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2519: {
2520: (*s_etat_processus).erreur_systeme = d_es_processus;
2521: return;
2522: }
2523: # endif
2524:
2525: nanosleep(&attente, NULL);
2526:
2527: # ifndef SEMAPHORES_NOMMES
2528: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2529: # else
2530: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2531: # endif
2532: {
2533: if (errno != EINTR)
2534: {
2535: (*s_etat_processus).erreur_systeme = d_es_processus;
2536: return;
2537: }
2538: }
2539:
2540: scrutation_injection(s_etat_processus);
2541:
2542: if ((*s_etat_processus).nombre_interruptions_non_affectees
2543: != 0)
2544: {
2545: affectation_interruptions_logicielles(s_etat_processus);
2546: }
2547:
2548: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2549: {
2550: registre_instruction_valide =
2551: (*s_etat_processus).instruction_valide;
2552: traitement_interruptions_logicielles(s_etat_processus);
2553: (*s_etat_processus).instruction_valide =
2554: registre_instruction_valide;
2555: }
2556:
2557: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2558: {
2559: if ((*s_etat_processus).profilage == d_vrai)
2560: {
2561: profilage(s_etat_processus, NULL);
2562: }
2563:
2564: return;
2565: }
2566:
2567: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2568: {
2569: if ((*s_etat_processus).profilage == d_vrai)
2570: {
2571: profilage(s_etat_processus, NULL);
2572: }
2573:
2574: (*s_etat_processus).erreur_systeme =
2575: d_es_processus;
2576: return;
2577: }
2578: }
2579: }
2580: else
2581: {
2582: drapeau_fin = d_vrai;
2583: (*s_etat_processus).erreur_execution = d_ex_processus;
2584: }
2585:
2586: INCR_GRANULARITE(attente.tv_nsec);
2587: }
2588:
2589: if ((*s_etat_processus).profilage == d_vrai)
2590: {
2591: profilage(s_etat_processus, NULL);
2592: }
2593:
2594: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2595: {
2596: (*s_etat_processus).erreur_systeme = d_es_processus;
2597: return;
2598: }
2599: }
2600: else
2601: {
2602: liberation(s_etat_processus, s_objet_argument);
2603:
2604: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2605: return;
2606: }
2607:
2608: liberation(s_etat_processus, s_objet_argument);
2609:
2610: return;
2611: }
2612:
2613:
2614: /*
2615: ================================================================================
2616: Fonction 'wfsock'
2617: ================================================================================
2618: Entrées : pointeur sur une structure struct_processus
2619: --------------------------------------------------------------------------------
2620: Sorties :
2621: --------------------------------------------------------------------------------
2622: Effets de bord : néant
2623: ================================================================================
2624: */
2625:
2626: void
2627: instruction_wfsock(struct_processus *s_etat_processus)
2628: {
2629: int erreur;
2630:
2631: logical1 drapeau;
2632:
2633: socklen_t longueur;
2634:
2635: struct_liste_chainee *l_element_courant;
2636:
2637: struct_objet *s_objet_argument;
2638: struct_objet *s_objet_resultat;
2639:
2640: struct sockaddr_in adresse_ipv4;
2641: # ifdef IPV6
2642: struct sockaddr_in6 adresse_ipv6;
2643: # endif
2644:
2645: unsigned long i;
2646:
2647: if ((*s_etat_processus).affichage_arguments == 'Y')
2648: {
2649: printf("\n WFSOCK ");
2650:
2651: if ((*s_etat_processus).langue == 'F')
2652: {
2653: printf("(attente d'une connexion sur une socket)\n\n");
2654: }
2655: else
2656: {
2657: printf("(wait for connection on a socket)\n\n");
2658: }
2659:
2660: printf(" 1: %s\n", d_SCK);
2661: printf("-> 2: %s\n", d_SCK);
2662: printf(" 1: %s\n", d_SCK);
2663:
2664: return;
2665: }
2666: else if ((*s_etat_processus).test_instruction == 'Y')
2667: {
2668: (*s_etat_processus).nombre_arguments = -1;
2669: return;
2670: }
2671:
2672: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2673: {
2674: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2675: {
2676: return;
2677: }
2678: }
2679:
2680: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2681: &s_objet_argument) == d_erreur)
2682: {
2683: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2684: return;
2685: }
2686:
2687: if ((*s_objet_argument).type == SCK)
2688: {
2689: if ((strcmp((*((struct_socket *) (*s_objet_argument).objet)).type,
2690: "STREAM") != 0) && (strcmp((*((struct_socket *)
2691: (*s_objet_argument).objet)).type, "SEQUENTIAL DATAGRAM") != 0))
2692: {
2693: liberation(s_etat_processus, s_objet_argument);
2694:
2695: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
2696: return;
2697: }
2698:
2699: if ((s_objet_resultat = copie_objet(s_etat_processus, s_objet_argument,
2700: 'O')) == NULL)
2701: {
2702: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
2703: return;
2704: }
2705:
2706: (*((struct_socket *) (*s_objet_resultat).objet)).socket_en_ecoute = 'N';
2707: (*((struct_socket *) (*s_objet_resultat).objet)).effacement = 'N';
2708:
2709: if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine == PF_INET)
2710: {
2711: longueur = sizeof(adresse_ipv4);
2712:
2713: do
2714: {
2715: drapeau = d_vrai;
2716:
2717: # ifndef SEMAPHORES_NOMMES
2718: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2719: {
2720: (*s_etat_processus).erreur_systeme = d_es_processus;
2721: return;
2722: }
2723: # else
2724: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2725: {
2726: (*s_etat_processus).erreur_systeme = d_es_processus;
2727: return;
2728: }
2729: # endif
2730:
2731: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2732: accept((*((struct_socket *) (*s_objet_argument).objet))
2733: .socket, (struct sockaddr *) &adresse_ipv4, &longueur))
2734: < 0)
2735: {
2736: erreur = errno;
2737:
2738: # ifndef SEMAPHORES_NOMMES
2739: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2740: # else
2741: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2742: # endif
2743: {
2744: if (errno != EINTR)
2745: {
2746: (*s_etat_processus).erreur_systeme = d_es_processus;
2747: return;
2748: }
2749: }
2750:
2751: if (erreur != EINTR)
2752: {
2753: liberation(s_etat_processus, s_objet_argument);
2754: liberation(s_etat_processus, s_objet_resultat);
2755:
2756: (*s_etat_processus).erreur_execution =
2757: d_ex_erreur_acces_fichier;
2758: return;
2759: }
2760:
2761: scrutation_injection(s_etat_processus);
2762:
2763: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2764: {
2765: drapeau = d_vrai;
2766: }
2767: else
2768: {
2769: drapeau = d_faux;
2770: }
2771: }
2772: else
2773: {
2774: # ifndef SEMAPHORES_NOMMES
2775: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2776: # else
2777: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2778: # endif
2779: {
2780: if (errno != EINTR)
2781: {
2782: (*s_etat_processus).erreur_systeme = d_es_processus;
2783: return;
2784: }
2785: }
2786: }
2787: } while(drapeau == d_faux);
2788:
2789: if (((*((struct_socket *) (*s_objet_resultat).objet))
2790: .adresse_distante = malloc(22 *
2791: sizeof(unsigned char))) == NULL)
2792: {
2793: (*s_etat_processus).erreur_systeme =
2794: d_es_allocation_memoire;
2795: return;
2796: }
2797:
2798: sprintf((*((struct_socket *) (*s_objet_resultat).objet))
2799: .adresse_distante, "%d.%d.%d.%d(%d)",
2800: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 24) & 0xFF,
2801: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 16) & 0xFF,
2802: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 8) & 0xFF,
2803: ntohl(adresse_ipv4.sin_addr.s_addr) & 0xFF,
2804: ntohs(adresse_ipv4.sin_port));
2805: }
2806: else if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
2807: PF_INET6)
2808: {
2809: # ifdef IPV6
2810: longueur = sizeof(adresse_ipv6);
2811:
2812: do
2813: {
2814: drapeau = d_vrai;
2815:
2816: # ifndef SEMAPHORES_NOMMES
2817: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2818: {
2819: (*s_etat_processus).erreur_systeme = d_es_processus;
2820: return;
2821: }
2822: # else
2823: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2824: {
2825: (*s_etat_processus).erreur_systeme = d_es_processus;
2826: return;
2827: }
2828: # endif
2829:
2830: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2831: accept((*((struct_socket *) (*s_objet_argument).objet))
2832: .socket, (struct sockaddr *) &adresse_ipv6, &longueur))
2833: < 0)
2834: {
2835: erreur = errno;
2836:
2837: # ifndef SEMAPHORES_NOMMES
2838: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2839: # else
2840: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2841: # endif
2842: {
2843: if (errno != EINTR)
2844: {
2845: (*s_etat_processus).erreur_systeme = d_es_processus;
2846: return;
2847: }
2848: }
2849:
2850: if (erreur != EINTR)
2851: {
2852: liberation(s_etat_processus, s_objet_argument);
2853: liberation(s_etat_processus, s_objet_resultat);
2854:
2855: (*s_etat_processus).erreur_execution =
2856: d_ex_erreur_acces_fichier;
2857: return;
2858: }
2859:
2860: scrutation_injection(s_etat_processus);
2861:
2862: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2863: {
2864: drapeau = d_vrai;
2865: }
2866: else
2867: {
2868: drapeau = d_faux;
2869: }
2870: }
2871: else
2872: {
2873: # ifndef SEMAPHORES_NOMMES
2874: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2875: # else
2876: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2877: # endif
2878: {
2879: if (errno != EINTR)
2880: {
2881: (*s_etat_processus).erreur_systeme = d_es_processus;
2882: return;
2883: }
2884: }
2885: }
2886: } while(drapeau == d_faux);
2887:
2888: if (((*((struct_socket *) (*s_objet_resultat).objet))
2889: .adresse_distante = malloc(55 *
2890: sizeof(unsigned char))) == NULL)
2891: {
2892: (*s_etat_processus).erreur_systeme =
2893: d_es_allocation_memoire;
2894: return;
2895: }
2896:
2897: (*((struct_socket *) (*s_objet_resultat).objet))
2898: .adresse_distante = d_code_fin_chaine;
2899:
2900: for(i = 0; i < 16; i++)
2901: {
2902: sprintf((*((struct_socket *) (*s_objet_resultat)
2903: .objet)).adresse_distante, (i == 0) ? "%s%X" : "%s:%X",
2904: (*((struct_socket *) (*s_objet_resultat)
2905: .objet)).adresse_distante,
2906: adresse_ipv6.sin6_addr.s6_addr[i]);
2907: }
2908:
2909: sprintf((*((struct_socket *) (*s_objet_resultat)
2910: .objet)).adresse_distante, "%s(%u)",
2911: (*((struct_socket *) (*s_objet_resultat)
2912: .objet)).adresse_distante, ntohs(adresse_ipv6.sin6_port));
2913: # else
2914: if ((*s_etat_processus).langue == 'F')
2915: {
2916: printf("+++Attention : Support du protocole"
2917: " IPv6 indisponble\n");
2918: }
2919: else
2920: {
2921: printf("+++Attention : IPv6 support "
2922: "unavailable\n");
2923: }
2924: # endif
2925: }
2926: else
2927: {
2928: longueur = 0;
2929:
2930: do
2931: {
2932: drapeau = d_vrai;
2933:
2934: # ifndef SEMAPHORES_NOMMES
2935: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2936: {
2937: (*s_etat_processus).erreur_systeme = d_es_processus;
2938: return;
2939: }
2940: # else
2941: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2942: {
2943: (*s_etat_processus).erreur_systeme = d_es_processus;
2944: return;
2945: }
2946: # endif
2947:
2948: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2949: accept((*((struct_socket *) (*s_objet_argument).objet))
2950: .socket, NULL, &longueur)) < 0)
2951: {
2952: erreur = errno;
2953:
2954: # ifndef SEMAPHORES_NOMMES
2955: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2956: # else
2957: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2958: # endif
2959: {
2960: if (errno != EINTR)
2961: {
2962: (*s_etat_processus).erreur_systeme = d_es_processus;
2963: return;
2964: }
2965: }
2966:
2967: if (erreur != EINTR)
2968: {
2969: liberation(s_etat_processus, s_objet_argument);
2970: liberation(s_etat_processus, s_objet_resultat);
2971:
2972: (*s_etat_processus).erreur_execution =
2973: d_ex_erreur_acces_fichier;
2974: return;
2975: }
2976:
2977: scrutation_injection(s_etat_processus);
2978:
2979: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2980: {
2981: drapeau = d_vrai;
2982: }
2983: else
2984: {
2985: drapeau = d_faux;
2986: }
2987: }
2988: else
2989: {
2990: # ifndef SEMAPHORES_NOMMES
2991: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
2992: # else
2993: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2994: # endif
2995: {
2996: if (errno != EINTR)
2997: {
2998: (*s_etat_processus).erreur_systeme = d_es_processus;
2999: return;
3000: }
3001: }
3002: }
3003: } while(drapeau == d_faux);
3004: }
3005:
3006: // Si accept() renvoie une erreur non récupérée, il ne peut s'agir
3007: // que de EINTR sachant qu'une requête d'arrêt est en court de
3008: // traitement.
3009:
3010: if ((*((struct_socket *) (*s_objet_resultat).objet)).socket >= 0)
3011: {
3012: l_element_courant = (*s_etat_processus).s_sockets;
3013:
3014: if (l_element_courant == NULL)
3015: {
3016: if (((*s_etat_processus).s_sockets =
3017: allocation_maillon(s_etat_processus)) == NULL)
3018: {
3019: (*s_etat_processus).erreur_systeme =
3020: d_es_allocation_memoire;
3021: return;
3022: }
3023:
3024: (*(*s_etat_processus).s_sockets).suivant = NULL;
3025: l_element_courant = (*s_etat_processus).s_sockets;
3026: }
3027: else
3028: {
3029: /*
3030: * Ajout d'un élément à la fin de la liste chaînée
3031: */
3032:
3033: while((*l_element_courant).suivant != NULL)
3034: {
3035: l_element_courant = (*l_element_courant).suivant;
3036: }
3037:
3038: if (((*l_element_courant).suivant =
3039: allocation_maillon(s_etat_processus)) == NULL)
3040: {
3041: (*s_etat_processus).erreur_systeme =
3042: d_es_allocation_memoire;
3043: return;
3044: }
3045:
3046: l_element_courant = (*l_element_courant).suivant;
3047: (*l_element_courant).suivant = NULL;
3048: }
3049:
3050: if (((*l_element_courant).donnee = copie_objet(s_etat_processus,
3051: s_objet_resultat, 'O')) == NULL)
3052: {
3053: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
3054: return;
3055: }
3056: }
3057:
3058: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3059: s_objet_argument) == d_erreur)
3060: {
3061: return;
3062: }
3063:
3064: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3065: s_objet_resultat) == d_erreur)
3066: {
3067: return;
3068: }
3069: }
3070: else
3071: {
3072: liberation(s_etat_processus, s_objet_argument);
3073:
3074: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3075: return;
3076: }
3077:
3078: return;
3079: }
3080:
3081:
3082: /*
3083: ================================================================================
3084: Fonction 'wfswi'
3085: ================================================================================
3086: Entrées : pointeur sur une structure struct_processus
3087: --------------------------------------------------------------------------------
3088: Sorties :
3089: --------------------------------------------------------------------------------
3090: Effets de bord : néant
3091: ================================================================================
3092: */
3093:
3094: void
3095: instruction_wfswi(struct_processus *s_etat_processus)
3096: {
3097: integer8 interruption;
3098:
3099: logical1 drapeau_fin;
3100:
3101: struct_objet *s_objet_argument;
3102:
3103: struct timespec attente;
3104:
3105: (*s_etat_processus).erreur_execution = d_ex;
3106:
3107: attente.tv_sec = 0;
3108: attente.tv_nsec = GRANULARITE_us * 1000;
3109:
3110: if ((*s_etat_processus).affichage_arguments == 'Y')
3111: {
3112: printf("\n WFSWI ");
3113:
3114: if ((*s_etat_processus).langue == 'F')
3115: {
3116: printf("(attente d'une interruption)\n\n");
3117: }
3118: else
3119: {
3120: printf("(wait for interrupt)\n\n");
3121: }
3122:
3123: printf(" 1: %s\n", d_INT);
3124:
3125: return;
3126: }
3127: else if ((*s_etat_processus).test_instruction == 'Y')
3128: {
3129: (*s_etat_processus).nombre_arguments = -1;
3130: return;
3131: }
3132:
3133: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3134: {
3135: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
3136: {
3137: return;
3138: }
3139: }
3140:
3141: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3142: &s_objet_argument) == d_erreur)
3143: {
3144: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
3145: return;
3146: }
3147:
3148: if ((*s_objet_argument).type == INT)
3149: {
3150: drapeau_fin = d_faux;
3151:
3152: interruption = (*((integer8 *) (*s_objet_argument).objet));
3153:
3154: if ((interruption < 1) || (interruption > d_NOMBRE_INTERRUPTIONS))
3155: {
3156: liberation(s_etat_processus, s_objet_argument);
3157:
3158: (*s_etat_processus).erreur_execution = d_ex_interruption_invalide;
3159: return;
3160: }
3161:
3162: while(drapeau_fin == d_faux)
3163: {
3164: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3165: {
3166: liberation(s_etat_processus, s_objet_argument);
3167: return;
3168: }
3169:
3170: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3171: {
3172: affectation_interruptions_logicielles(s_etat_processus);
3173: }
3174:
3175: if ((*s_etat_processus).queue_interruptions[interruption - 1] > 0)
3176: {
3177: drapeau_fin = d_vrai;
3178: }
3179: else
3180: {
3181: nanosleep(&attente, NULL);
3182: scrutation_injection(s_etat_processus);
3183: INCR_GRANULARITE(attente.tv_nsec);
3184: }
3185: }
3186: }
3187: else
3188: {
3189: liberation(s_etat_processus, s_objet_argument);
3190:
3191: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3192: return;
3193: }
3194:
3195: liberation(s_etat_processus, s_objet_argument);
3196:
3197: return;
3198: }
3199:
3200:
3201: /*
3202: ================================================================================
3203: Fonction 'wfpoke'
3204: ================================================================================
3205: Entrées : pointeur sur une structure struct_processus
3206: --------------------------------------------------------------------------------
3207: Sorties :
3208: --------------------------------------------------------------------------------
3209: Effets de bord : néant
3210: ================================================================================
3211: */
3212:
3213: void
3214: instruction_wfpoke(struct_processus *s_etat_processus)
3215: {
3216: struct timespec attente;
3217:
3218: unsigned char registre_instruction_valide;
3219:
3220: (*s_etat_processus).erreur_execution = d_ex;
3221:
3222: attente.tv_sec = 0;
3223: attente.tv_nsec = GRANULARITE_us * 1000;
3224:
3225: if ((*s_etat_processus).affichage_arguments == 'Y')
3226: {
3227: printf("\n WFPOKE ");
3228:
3229: if ((*s_etat_processus).langue == 'F')
3230: {
3231: printf("(attente de données en provenance du processus père)\n\n");
3232: printf(" Aucun argument\n");
3233: }
3234: else
3235: {
3236: printf("(wait for data from parent process)\n\n");
3237: printf(" No argument\n");
3238: }
3239:
3240: return;
3241: }
3242: else if ((*s_etat_processus).test_instruction == 'Y')
3243: {
3244: (*s_etat_processus).nombre_arguments = -1;
3245: return;
3246: }
3247:
3248: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3249: {
3250: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3251: {
3252: return;
3253: }
3254: }
3255:
3256: if ((*s_etat_processus).presence_pipes == d_faux)
3257: {
3258: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3259: return;
3260: }
3261:
3262: if ((*s_etat_processus).nombre_objets_injectes > 0)
3263: {
3264: return;
3265: }
3266:
3267: if ((*s_etat_processus).profilage == d_vrai)
3268: {
3269: profilage(s_etat_processus, "Interprocess or interthread "
3270: "communications (WFPOKE)");
3271:
3272: if ((*s_etat_processus).erreur_systeme != d_es)
3273: {
3274: return;
3275: }
3276: }
3277:
3278: do
3279: {
3280: # ifndef SEMAPHORES_NOMMES
3281: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3282: {
3283: (*s_etat_processus).erreur_systeme = d_es_processus;
3284: return;
3285: }
3286: # else
3287: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3288: {
3289: (*s_etat_processus).erreur_systeme = d_es_processus;
3290: return;
3291: }
3292: # endif
3293:
3294: nanosleep(&attente, NULL);
3295:
3296: # ifndef SEMAPHORES_NOMMES
3297: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
3298: # else
3299: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
3300: # endif
3301: {
3302: if (errno != EINTR)
3303: {
3304: (*s_etat_processus).erreur_systeme = d_es_processus;
3305: return;
3306: }
3307: }
3308:
3309: scrutation_injection(s_etat_processus);
3310:
3311: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3312: {
3313: affectation_interruptions_logicielles(s_etat_processus);
3314: }
3315:
3316: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3317: {
3318: registre_instruction_valide =
3319: (*s_etat_processus).instruction_valide;
3320: traitement_interruptions_logicielles(s_etat_processus);
3321: (*s_etat_processus).instruction_valide =
3322: registre_instruction_valide;
3323: }
3324:
3325: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3326: {
3327: if ((*s_etat_processus).profilage == d_vrai)
3328: {
3329: profilage(s_etat_processus, NULL);
3330: }
3331:
3332: return;
3333: }
3334:
3335: INCR_GRANULARITE(attente.tv_nsec);
3336: } while((*s_etat_processus).nombre_objets_injectes == 0);
3337:
3338: return;
3339: }
3340:
3341:
3342: /*
3343: ================================================================================
3344: Fonction 'wfack'
3345: ================================================================================
3346: Entrées : pointeur sur une structure struct_processus
3347: --------------------------------------------------------------------------------
3348: Sorties :
3349: --------------------------------------------------------------------------------
3350: Effets de bord : néant
3351: ================================================================================
3352: */
3353:
3354: void
3355: instruction_wfack(struct_processus *s_etat_processus)
3356: {
3357: struct timespec attente;
3358:
3359: unsigned char registre_instruction_valide;
3360:
3361: (*s_etat_processus).erreur_execution = d_ex;
3362:
3363: attente.tv_sec = 0;
3364: attente.tv_nsec = GRANULARITE_us * 1000;
3365:
3366: if ((*s_etat_processus).affichage_arguments == 'Y')
3367: {
3368: printf("\n WFACK ");
3369:
3370: if ((*s_etat_processus).langue == 'F')
3371: {
3372: printf("(attente des acquittements de lecture)\n\n");
3373: printf(" Aucun argument\n");
3374: }
3375: else
3376: {
3377: printf("(wait for reading of data acknowledgement)\n\n");
3378: printf(" No argument\n");
3379: }
3380:
3381: return;
3382: }
3383: else if ((*s_etat_processus).test_instruction == 'Y')
3384: {
3385: (*s_etat_processus).nombre_arguments = -1;
3386: return;
3387: }
3388:
3389: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3390: {
3391: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3392: {
3393: return;
3394: }
3395: }
3396:
3397: if ((*s_etat_processus).presence_pipes == d_faux)
3398: {
3399: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3400: return;
3401: }
3402:
3403: if ((*s_etat_processus).profilage == d_vrai)
3404: {
3405: profilage(s_etat_processus, "Interprocess or interthread communications"
3406: " (WFACK)");
3407:
3408: if ((*s_etat_processus).erreur_systeme != d_es)
3409: {
3410: return;
3411: }
3412: }
3413:
3414: while((*s_etat_processus).nombre_objets_envoyes_non_lus != 0)
3415: {
3416: scrutation_injection(s_etat_processus);
3417:
3418: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3419: {
3420: affectation_interruptions_logicielles(s_etat_processus);
3421: }
3422:
3423: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3424: {
3425: registre_instruction_valide =
3426: (*s_etat_processus).instruction_valide;
3427: traitement_interruptions_logicielles(s_etat_processus);
3428: (*s_etat_processus).instruction_valide =
3429: registre_instruction_valide;
3430: }
3431:
3432: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3433: {
3434: if ((*s_etat_processus).profilage == d_vrai)
3435: {
3436: profilage(s_etat_processus, NULL);
3437: }
3438:
3439: return;
3440: }
3441:
3442: # ifndef SEMAPHORES_NOMMES
3443: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3444: {
3445: (*s_etat_processus).erreur_systeme = d_es_processus;
3446: return;
3447: }
3448: # else
3449: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3450: {
3451: (*s_etat_processus).erreur_systeme = d_es_processus;
3452: return;
3453: }
3454: # endif
3455:
3456: nanosleep(&attente, NULL);
3457: INCR_GRANULARITE(attente.tv_nsec);
3458:
3459: # ifndef SEMAPHORES_NOMMES
3460: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
3461: # else
3462: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
3463: # endif
3464: {
3465: if (errno != EINTR)
3466: {
3467: (*s_etat_processus).erreur_systeme = d_es_processus;
3468: return;
3469: }
3470: }
3471: }
3472:
3473: if ((*s_etat_processus).profilage == d_vrai)
3474: {
3475: profilage(s_etat_processus, NULL);
3476: }
3477:
3478: return;
3479: }
3480:
3481: // vim: ts=4
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