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1.1 bertrand 1: /*
2: ================================================================================
1.29 ! bertrand 3: RPL/2 (R) version 4.0.20
1.1 bertrand 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:
1.20 bertrand 23: #include "rpl-conv.h"
1.1 bertrand 24:
25:
26: /*
27: ================================================================================
28: Fonction 'while'
29: ================================================================================
30: Entrées :
31: --------------------------------------------------------------------------------
32: Sorties :
33: --------------------------------------------------------------------------------
34: Effets de bord : néant
35: ================================================================================
36: */
37:
38: void
39: instruction_while(struct_processus *s_etat_processus)
40: {
41: (*s_etat_processus).erreur_execution = d_ex;
42:
43: if ((*s_etat_processus).affichage_arguments == 'Y')
44: {
45: printf("\n WHILE ");
46:
47: if ((*s_etat_processus).langue == 'F')
48: {
49: printf("(structure de contrôle)\n\n");
50: printf(" Utilisation :\n\n");
51: }
52: else
53: {
54: printf("(control statement)\n\n");
55: printf(" Usage:\n\n");
56: }
57:
58: printf(" WHILE\n");
59: printf(" (clause)\n");
60: printf(" REPEAT\n");
61: printf(" (expression 1)\n");
62: printf(" EXIT\n");
63: printf(" (expression 2)\n");
64: printf(" END\n\n");
65:
66: printf(" WHILE\n");
67: printf(" (clause)\n");
68: printf(" REPEAT\n");
69: printf(" (expression)\n");
70: printf(" END\n");
71:
72: return;
73: }
74: else if ((*s_etat_processus).test_instruction == 'Y')
75: {
76: (*s_etat_processus).nombre_arguments = -1;
77: return;
78: }
79:
80: empilement_pile_systeme(s_etat_processus);
81:
82: if ((*s_etat_processus).erreur_systeme != d_es)
83: {
84: return;
85: }
86:
87: (*(*s_etat_processus).l_base_pile_systeme).type_cloture = 'W';
88: (*(*s_etat_processus).l_base_pile_systeme).clause = 'W';
89:
90: if ((*s_etat_processus).mode_execution_programme == 'Y')
91: {
92: (*(*s_etat_processus).l_base_pile_systeme).adresse_retour =
93: (*s_etat_processus).position_courante;
94: }
95: else
96: {
97: if ((*s_etat_processus).expression_courante == NULL)
98: {
99: (*s_etat_processus).erreur_execution =
100: d_ex_erreur_traitement_boucle;
101: return;
102: }
103:
104: (*(*s_etat_processus).l_base_pile_systeme).pointeur_objet_retour =
105: (*s_etat_processus).expression_courante;
106: }
107:
108: return;
109: }
110:
111:
112: /*
113: ================================================================================
114: Fonction 'warranty'
115: ================================================================================
116: Entrées :
117: --------------------------------------------------------------------------------
118: Sorties :
119: --------------------------------------------------------------------------------
120: Effets de bord : néant
121: ================================================================================
122: */
123:
124: void
125: instruction_warranty(struct_processus *s_etat_processus)
126: {
1.20 bertrand 127: # include "garanties-conv.h"
1.1 bertrand 128:
129: (*s_etat_processus).erreur_execution = d_ex;
130:
131: if ((*s_etat_processus).affichage_arguments == 'Y')
132: {
133: printf("\n WARRANTY ");
134:
135: if ((*s_etat_processus).langue == 'F')
136: {
137: printf("(garantie)\n\n");
138: printf(" Aucun argument\n");
139: }
140: else
141: {
142: printf("(warranty)\n\n");
143: printf(" No argument\n");
144: }
145:
146: return;
147: }
148: else if ((*s_etat_processus).test_instruction == 'Y')
149: {
150: (*s_etat_processus).nombre_arguments = -1;
151: return;
152: }
153:
154: printf("%s\n", warranty);
155:
156: if ((*s_etat_processus).hauteur_pile_operationnelle == 0)
157: {
158: printf("\n");
159: }
160:
161: return;
162: }
163:
164:
165: /*
166: ================================================================================
167: Fonction 'wait'
168: ================================================================================
169: Entrées :
170: --------------------------------------------------------------------------------
171: Sorties :
172: --------------------------------------------------------------------------------
173: Effets de bord : néant
174: ================================================================================
175: */
176:
177: void
178: instruction_wait(struct_processus *s_etat_processus)
179: {
180: int code_retour;
181: int erreur;
182:
183: real8 attente;
184:
185: struct_objet *s_objet;
186:
187: struct timespec temporisation;
188:
189: (*s_etat_processus).erreur_execution = d_ex;
190:
191: if ((*s_etat_processus).affichage_arguments == 'Y')
192: {
193: printf("\n WAIT ");
194:
195: if ((*s_etat_processus).langue == 'F')
196: {
197: printf("(attente exprimée en secondes)\n\n");
198: }
199: else
200: {
201: printf("(wait a number of seconds)\n\n");
202: }
203:
204: printf(" 1: %s, %s\n", d_INT, d_REL);
205:
206: return;
207: }
208: else if ((*s_etat_processus).test_instruction == 'Y')
209: {
210: (*s_etat_processus).nombre_arguments = -1;
211: return;
212: }
213:
214: if (test_cfsf(s_etat_processus, 31) == d_vrai)
215: {
216: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
217: {
218: return;
219: }
220: }
221:
222: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
223: &s_objet) == d_erreur)
224: {
225: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
226: return;
227: }
228:
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: {
1.12 bertrand 265: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 266: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
267: {
268: (*s_etat_processus).erreur_systeme = d_es_processus;
269: return;
270: }
1.12 bertrand 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
1.1 bertrand 278:
279: code_retour = nanosleep(&temporisation, &temporisation);
280: erreur = errno;
281:
1.12 bertrand 282: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 283: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 284: # else
285: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
286: # endif
1.1 bertrand 287: {
288: if (errno != EINTR)
289: {
290: (*s_etat_processus).erreur_systeme = d_es_processus;
291: return;
292: }
293: }
1.28 bertrand 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: }
1.1 bertrand 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: {
1.6 bertrand 389: const char *queue;
390:
1.1 bertrand 391: int adresse[16];
392: int port;
393:
1.8 bertrand 394: integer8 clef;
395: integer8 compteur;
396: integer8 id;
397: integer8 ordre;
398:
399: logical1 mise_a_jour;
400:
1.1 bertrand 401: long longueur_effective;
402: long recursivite;
403:
1.6 bertrand 404: sqlite3_stmt *ppStmt;
405:
1.1 bertrand 406: ssize_t ios;
407:
1.5 bertrand 408: struct_descripteur_fichier *descripteur;
409:
1.8 bertrand 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;
1.6 bertrand 415: struct_objet *s_objet_argument_1;
1.1 bertrand 416: struct_objet *s_objet_argument_2;
1.6 bertrand 417: struct_objet *s_objet_argument_3;
1.1 bertrand 418:
419: struct sigaction action;
420: struct sigaction registre;
421:
422: struct sockaddr_in adresse_ipv4;
1.20 bertrand 423: # ifdef IPV6
1.1 bertrand 424: struct sockaddr_in6 adresse_ipv6;
1.20 bertrand 425: # endif
1.1 bertrand 426: struct sockaddr_un adresse_unix;
427:
428: struct flock lock;
429:
430: uint32_t calcul_adresse;
431:
432: unsigned char *chaine;
1.5 bertrand 433: unsigned char *chaine_utf8;
1.8 bertrand 434: unsigned char *clef_utf8;
1.6 bertrand 435: unsigned char *commande;
1.1 bertrand 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);
1.6 bertrand 455: printf(" 1: %s, %s\n\n", d_FCH, d_SCK);
1.1 bertrand 456:
1.6 bertrand 457: printf(" 3: %s\n", d_LST);
1.8 bertrand 458: printf(" 2: %s\n", d_INT);
1.6 bertrand 459: printf(" 1: %s\n", d_FCH);
1.1 bertrand 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: {
1.6 bertrand 470: if ((*s_etat_processus).l_base_pile == NULL)
1.1 bertrand 471: {
1.6 bertrand 472: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1.1 bertrand 473: return;
474: }
1.6 bertrand 475:
476: if ((*(*(*s_etat_processus).l_base_pile).donnee).type == FCH)
477: {
478: if ((*((struct_fichier *) (*(*(*s_etat_processus).l_base_pile)
1.9 bertrand 479: .donnee).objet)).acces == 'D')
1.6 bertrand 480: {
1.9 bertrand 481: if (empilement_pile_last(s_etat_processus, 3) == d_erreur)
1.6 bertrand 482: {
483: return;
484: }
485: }
486: else
487: {
1.9 bertrand 488: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
1.6 bertrand 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: }
1.1 bertrand 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:
1.6 bertrand 519: if ((*s_objet_argument_1).type == FCH)
1.1 bertrand 520: {
1.5 bertrand 521: if ((descripteur = descripteur_fichier(s_etat_processus,
522: (struct_fichier *) (*s_objet_argument_1).objet)) == NULL)
523: {
524: return;
525: }
526:
1.1 bertrand 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:
1.5 bertrand 538: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
539: == -1)
1.1 bertrand 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:
1.6 bertrand 578: if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
579: == 'S')
1.1 bertrand 580: {
1.6 bertrand 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);
1.1 bertrand 598:
1.6 bertrand 599: return;
600: }
1.1 bertrand 601:
1.5 bertrand 602: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
603:
604: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
605: != 0)
1.1 bertrand 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:
1.5 bertrand 614: if ((chaine_utf8 = transliteration(s_etat_processus,
615: chaine, d_locale, "UTF-8")) == NULL)
616: {
1.6 bertrand 617: free(chaine);
618:
1.5 bertrand 619: liberation(s_etat_processus, s_objet_argument_2);
620: liberation(s_etat_processus, s_objet_argument_1);
621:
622: return;
623: }
624:
1.6 bertrand 625: free(chaine);
626:
1.7 bertrand 627: if (fprintf((*descripteur).descripteur_c, "%s\n", chaine_utf8)
628: < 0)
1.1 bertrand 629: {
1.5 bertrand 630: free(chaine_utf8);
631:
1.1 bertrand 632: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
633: return;
634: }
1.5 bertrand 635:
636: free(chaine_utf8);
1.1 bertrand 637: }
638: else if ((*((struct_fichier *) (*s_objet_argument_1).objet)).acces
639: == 'D')
640: {
1.6 bertrand 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:
1.8 bertrand 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: {
1.9 bertrand 703: (*s_etat_processus).erreur_systeme =
704: d_es_allocation_memoire;
1.8 bertrand 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:
1.9 bertrand 747: // Récupération de la position de la clef
1.8 bertrand 748:
749: if (alsprintf(&commande, "select key from control "
750: "where id = 1") < 0)
751: {
1.9 bertrand 752: (*s_etat_processus).erreur_systeme =
753: d_es_allocation_memoire;
1.8 bertrand 754: return;
755: }
756:
757: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
758: commande, strlen(commande), &ppStmt, &queue)
759: != SQLITE_OK)
760: {
1.9 bertrand 761: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 762: return;
763: }
764:
765: if (sqlite3_step(ppStmt) != SQLITE_ROW)
766: {
1.9 bertrand 767: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 768: return;
769: }
770:
771: if (sqlite3_column_type(ppStmt, 0) != SQLITE_INTEGER)
772: {
1.9 bertrand 773: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 774: return;
775: }
776:
777: clef = sqlite3_column_int64(ppStmt, 0);
778:
779: if (sqlite3_step(ppStmt) != SQLITE_DONE)
780: {
1.9 bertrand 781: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 782: return;
783: }
784:
785: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
786: {
1.9 bertrand 787: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 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: {
1.9 bertrand 909: (*s_etat_processus).erreur_systeme =
910: d_es_allocation_memoire;
1.8 bertrand 911: return;
912: }
913:
914: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
915: commande, strlen(commande), &ppStmt, &queue)
916: != SQLITE_OK)
917: {
1.9 bertrand 918: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 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: {
1.9 bertrand 950: (*s_etat_processus).erreur_systeme =
951: d_es_allocation_memoire;
1.8 bertrand 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: {
1.9 bertrand 984: (*s_etat_processus).erreur_systeme =
985: d_es_allocation_memoire;
1.8 bertrand 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: {
1.9 bertrand 1019: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1020: return;
1021: }
1022:
1023: id = sqlite3_column_int64(ppStmt, 0);
1024:
1025: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1.6 bertrand 1026: {
1.9 bertrand 1027: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1028: return;
1029: }
1.6 bertrand 1030:
1.8 bertrand 1031: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1032: {
1.9 bertrand 1033: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 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)
1.6 bertrand 1045: {
1.9 bertrand 1046: (*s_etat_processus).erreur_systeme =
1047: d_es_allocation_memoire;
1.6 bertrand 1048: return;
1049: }
1.8 bertrand 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);
1.6 bertrand 1075: }
1.8 bertrand 1076:
1077: // Effacement de l'enregistrement existant
1078:
1079: if (alsprintf(&commande, "delete from data where "
1080: "key_id = %lld", id) < 0)
1081: {
1.9 bertrand 1082: (*s_etat_processus).erreur_systeme =
1083: d_es_allocation_memoire;
1.8 bertrand 1084: return;
1085: }
1086:
1087: if (sqlite3_prepare_v2((*descripteur).descripteur_sqlite,
1088: commande, strlen(commande), &ppStmt, &queue)
1089: != SQLITE_OK)
1090: {
1.9 bertrand 1091: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1092: return;
1093: }
1094:
1095: if (sqlite3_step(ppStmt) != SQLITE_DONE)
1096: {
1.9 bertrand 1097: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 1098: return;
1099: }
1100:
1101: if (sqlite3_finalize(ppStmt) != SQLITE_OK)
1102: {
1.9 bertrand 1103: (*s_etat_processus).erreur_systeme = d_es_erreur_fichier;
1.8 bertrand 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))
1.6 bertrand 1121: {
1.8 bertrand 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: }
1.6 bertrand 1184:
1185: if ((chaine = formateur_fichier(s_etat_processus,
1.8 bertrand 1186: s_element, s_format, 0, 0, ' ',
1.6 bertrand 1187: 'F', &longueur_effective, &recursivite)) == NULL)
1188: {
1.8 bertrand 1189: free(clef_utf8);
1.9 bertrand 1190:
1.8 bertrand 1191: liberation(s_etat_processus, s_element);
1192: liberation(s_etat_processus, s_format);
1.6 bertrand 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: {
1.8 bertrand 1202: free(clef_utf8);
1.6 bertrand 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:
1.8 bertrand 1213: if (alsprintf(&commande, "insert into data "
1214: "(data, key_id, sequence) values "
1215: "('%s', %lld, %lld)", chaine_utf8, id, ordre) < 0)
1.6 bertrand 1216: {
1.9 bertrand 1217: (*s_etat_processus).erreur_systeme =
1218: d_es_allocation_memoire;
1.6 bertrand 1219: return;
1220: }
1221:
1.8 bertrand 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);
1.6 bertrand 1246: free(chaine_utf8);
1.8 bertrand 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++;
1.6 bertrand 1257: }
1258:
1.8 bertrand 1259: free(clef_utf8);
1.6 bertrand 1260:
1.8 bertrand 1261: if ((l_element_courant != NULL) ||
1262: (l_element_courant_format != NULL))
1.6 bertrand 1263: {
1.8 bertrand 1264: liberation(s_etat_processus, s_objet_argument_1);
1265: liberation(s_etat_processus, s_objet_argument_2);
1.6 bertrand 1266:
1.8 bertrand 1267: (*s_etat_processus).erreur_execution =
1268: d_ex_erreur_format_fichier;
1.6 bertrand 1269: return;
1270: }
1.1 bertrand 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: {
1.5 bertrand 1294: BUG(((*descripteur).type != 'C'), uprintf("Bad filetype !\n"));
1295:
1296: if (fseek((*descripteur).descripteur_c, (long) 0, SEEK_END)
1297: != 0)
1.1 bertrand 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,
1.5 bertrand 1307: (*descripteur).descripteur_c) !=
1308: (size_t) longueur_effective)
1.1 bertrand 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:
1.12 bertrand 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
1.1 bertrand 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:
1.12 bertrand 1408: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1409: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 1410: # else
1411: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1412: # endif
1.1 bertrand 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:
1.12 bertrand 1432: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1433: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 1434: # else
1435: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1436: # endif
1.1 bertrand 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,
1.24 bertrand 1485: UNIX_PATH_MAX);
1486: adresse_unix.sun_path[UNIX_PATH_MAX - 1] =
1487: d_code_fin_chaine;
1.1 bertrand 1488:
1.12 bertrand 1489: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1490: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1491: {
1492: (*s_etat_processus).erreur_systeme = d_es_processus;
1493: return;
1494: }
1.12 bertrand 1495: # else
1496: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1497: {
1498: (*s_etat_processus).erreur_systeme = d_es_processus;
1499: return;
1500: }
1501: # endif
1.1 bertrand 1502:
1503: if (sendto((*((struct_socket *)
1504: (*s_objet_argument_1).objet)).socket, chaine,
1505: strlen(chaine), 0, (struct sockaddr *)
1506: &adresse_unix, sizeof(adresse_unix)) < 0)
1507: {
1.12 bertrand 1508: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1509: while(sem_wait(&((*s_etat_processus)
1510: .semaphore_fork)) == -1)
1.12 bertrand 1511: # else
1512: while(sem_wait((*s_etat_processus)
1513: .semaphore_fork) == -1)
1514: # endif
1.1 bertrand 1515: {
1516: if (errno != EINTR)
1517: {
1518: (*s_etat_processus).erreur_systeme =
1519: d_es_processus;
1520: return;
1521: }
1522: }
1523:
1524: (*s_etat_processus).erreur_systeme =
1525: d_es_erreur_fichier;
1526: return;
1527: }
1528:
1.12 bertrand 1529: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1530: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 1531: # else
1532: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1533: # endif
1.1 bertrand 1534: {
1535: if (errno != EINTR)
1536: {
1537: (*s_etat_processus).erreur_systeme = d_es_processus;
1538: return;
1539: }
1540: }
1541: }
1542: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1543: .domaine == PF_INET)
1544: {
1545: if (sscanf((*((struct_socket *)
1546: (*s_objet_argument_1).objet))
1547: .adresse_distante, "%d.%d.%d.%d(%d)",
1548: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1549: &(adresse[3]), &port) == 5)
1550: { // Adresse IPv4
1551: calcul_adresse = 0;
1552: for(i = 0; i < 4; calcul_adresse =
1553: (256 * calcul_adresse) + adresse[i++]);
1554:
1555: memset(&adresse_ipv4, 0, sizeof(adresse_ipv4));
1556: adresse_ipv4.sin_family = AF_INET;
1557: adresse_ipv4.sin_port = htons(port);
1558: adresse_ipv4.sin_addr.s_addr = htonl(calcul_adresse);
1559:
1.12 bertrand 1560: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1561: if (sem_post(&((*s_etat_processus)
1562: .semaphore_fork)) != 0)
1563: {
1564: (*s_etat_processus).erreur_systeme = d_es_processus;
1565: return;
1566: }
1.12 bertrand 1567: # else
1568: if (sem_post((*s_etat_processus) .semaphore_fork) != 0)
1569: {
1570: (*s_etat_processus).erreur_systeme = d_es_processus;
1571: return;
1572: }
1573: # endif
1.1 bertrand 1574:
1575: if (sendto((*((struct_socket *)
1576: (*s_objet_argument_1).objet)).socket, chaine,
1577: strlen(chaine), 0, (struct sockaddr *)
1578: &adresse_ipv4, sizeof(adresse_ipv4)) < 0)
1579: {
1.12 bertrand 1580: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1581: while(sem_wait(&((*s_etat_processus)
1582: .semaphore_fork)) == -1)
1.12 bertrand 1583: # else
1584: while(sem_wait((*s_etat_processus)
1585: .semaphore_fork) == -1)
1586: # endif
1.1 bertrand 1587: {
1588: if (errno != EINTR)
1589: {
1590: (*s_etat_processus).erreur_systeme =
1591: d_es_processus;
1592: return;
1593: }
1594: }
1595:
1596: (*s_etat_processus).erreur_systeme =
1597: d_es_erreur_fichier;
1598: return;
1599: }
1600:
1.12 bertrand 1601: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1602: while(sem_wait(&((*s_etat_processus)
1603: .semaphore_fork)) == -1)
1.12 bertrand 1604: # else
1605: while(sem_wait((*s_etat_processus)
1606: .semaphore_fork) == -1)
1607: # endif
1.1 bertrand 1608: {
1609: if (errno != EINTR)
1610: {
1611: (*s_etat_processus).erreur_systeme =
1612: d_es_processus;
1613: return;
1614: }
1615: }
1616: }
1617: else
1618: {
1619: liberation(s_etat_processus, s_objet_argument_1);
1620: liberation(s_etat_processus, s_objet_argument_2);
1621:
1622: (*s_etat_processus).erreur_execution =
1623: d_ex_erreur_parametre_fichier;
1624: return;
1625: }
1626: }
1627: else if ((*((struct_socket *) (*s_objet_argument_1).objet))
1628: .domaine == PF_INET6)
1629: {
1630: if (sscanf((*((struct_socket *) (*s_objet_argument_1)
1631: .objet)).adresse_distante, "%X:%X:%X:%X:%X:"
1632: "%X:%X:%X:%X:%X:%X:%X:%X:%X:%X:%X(%d)",
1633: &(adresse[0]), &(adresse[1]), &(adresse[2]),
1634: &(adresse[3]), &(adresse[4]), &(adresse[5]),
1635: &(adresse[6]), &(adresse[7]), &(adresse[8]),
1636: &(adresse[9]), &(adresse[10]), &(adresse[11]),
1637: &(adresse[12]), &(adresse[13]), &(adresse[14]),
1638: &(adresse[15]), &port)== 17)
1639: { // Adresse IPv6
1.20 bertrand 1640: # ifdef IPV6
1.1 bertrand 1641: memset(&adresse_ipv6, 0, sizeof(adresse_ipv6));
1642: adresse_ipv6.sin6_family = AF_INET6;
1643: adresse_ipv6.sin6_port = htons((uint16_t) port);
1644:
1645: for(i = 0; i < 16;
1646: adresse_ipv6.sin6_addr.s6_addr[i] =
1647: adresse[i], i++);
1648:
1.12 bertrand 1649: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1650: if (sem_post(&((*s_etat_processus)
1651: .semaphore_fork)) != 0)
1652: {
1653: (*s_etat_processus).erreur_systeme = d_es_processus;
1654: return;
1655: }
1.12 bertrand 1656: # else
1657: if (sem_post((*s_etat_processus) .semaphore_fork) != 0)
1658: {
1659: (*s_etat_processus).erreur_systeme = d_es_processus;
1660: return;
1661: }
1662: # endif
1.1 bertrand 1663:
1664: if (sendto((*((struct_socket *)
1665: (*s_objet_argument_1).objet)).socket, chaine,
1666: strlen(chaine), 0, (struct sockaddr *)
1667: &adresse_ipv6, sizeof(adresse_ipv6)) < 0)
1668: {
1.12 bertrand 1669: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1670: while(sem_wait(&((*s_etat_processus)
1671: .semaphore_fork)) == -1)
1.12 bertrand 1672: # else
1673: while(sem_wait((*s_etat_processus)
1674: .semaphore_fork) == -1)
1675: # endif
1.1 bertrand 1676: {
1677: if (errno != EINTR)
1678: {
1679: (*s_etat_processus).erreur_systeme =
1680: d_es_processus;
1681: return;
1682: }
1683: }
1684:
1685: (*s_etat_processus).erreur_systeme =
1686: d_es_erreur_fichier;
1687: return;
1688: }
1689:
1.12 bertrand 1690: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1691: while(sem_wait(&((*s_etat_processus)
1692: .semaphore_fork)) == -1)
1.12 bertrand 1693: # else
1694: while(sem_wait((*s_etat_processus)
1695: .semaphore_fork) == -1)
1696: # endif
1.1 bertrand 1697: {
1698: if (errno != EINTR)
1699: {
1700: (*s_etat_processus).erreur_systeme =
1701: d_es_processus;
1702: return;
1703: }
1704: }
1.20 bertrand 1705: # else
1.22 bertrand 1706: if ((*s_etat_processus).langue == 'F')
1707: {
1708: printf("+++Attention : Support du protocole"
1.23 bertrand 1709: " IPv6 indisponible\n");
1.22 bertrand 1710: }
1711: else
1712: {
1.25 bertrand 1713: printf("+++Warning : IPv6 support "
1.22 bertrand 1714: "unavailable\n");
1715: }
1.20 bertrand 1716: # endif
1.1 bertrand 1717: }
1718: else
1719: {
1720: liberation(s_etat_processus, s_objet_argument_1);
1721: liberation(s_etat_processus, s_objet_argument_2);
1722:
1723: (*s_etat_processus).erreur_execution =
1724: d_ex_erreur_parametre_fichier;
1725: return;
1726: }
1727: }
1728: else
1729: {
1730: liberation(s_etat_processus, s_objet_argument_1);
1731: liberation(s_etat_processus, s_objet_argument_2);
1732:
1733: (*s_etat_processus).erreur_execution =
1734: d_ex_erreur_parametre_fichier;
1735: return;
1736: }
1737: }
1738:
1739: free(chaine);
1740: }
1741: else if ((*((struct_socket *) (*s_objet_argument_1).objet)).binaire
1742: == 'Y')
1743: {
1744: /*
1745: * Sockets non formatées
1746: */
1747: }
1748: else
1749: {
1750: /*
1751: * Sockets de type FLOW
1752: */
1753: }
1754: }
1755: else
1756: {
1757: liberation(s_etat_processus, s_objet_argument_2);
1758: liberation(s_etat_processus, s_objet_argument_1);
1759:
1760: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1761: return;
1762: }
1763:
1764: liberation(s_etat_processus, s_objet_argument_2);
1765: liberation(s_etat_processus, s_objet_argument_1);
1766:
1767: return;
1768: }
1769:
1770:
1771: /*
1772: ================================================================================
1773: Fonction 'wflock'
1774: ================================================================================
1775: Entrées : pointeur sur une structure struct_processus
1776: --------------------------------------------------------------------------------
1777: Sorties :
1778: --------------------------------------------------------------------------------
1779: Effets de bord : néant
1780: ================================================================================
1781: */
1782:
1783: void
1784: instruction_wflock(struct_processus *s_etat_processus)
1785: {
1786: logical1 drapeau;
1787:
1788: struct flock lock;
1789:
1790: struct timespec attente;
1791:
1.5 bertrand 1792: struct_descripteur_fichier *descripteur;
1793:
1.1 bertrand 1794: struct_objet *s_objet_argument_1;
1795: struct_objet *s_objet_argument_2;
1796:
1797: unsigned char *chaine;
1798: unsigned char registre_instruction_valide;
1799:
1800: attente.tv_sec = 0;
1801: attente.tv_nsec = GRANULARITE_us * 1000;
1802:
1803: (*s_etat_processus).erreur_execution = d_ex;
1804:
1805: if ((*s_etat_processus).affichage_arguments == 'Y')
1806: {
1807: printf("\n WFLOCK ");
1808:
1809: if ((*s_etat_processus).langue == 'F')
1810: {
1811: printf("(attente du positionnement d'un verrou sur un fichier)"
1812: "\n\n");
1813: }
1814: else
1815: {
1816: printf("(wait for file lock)\n\n");
1817: }
1818:
1819: printf(" 2: %s\n", d_FCH);
1820: printf(" 1: %s (READ/WRITE/NONE)\n", d_CHN);
1821:
1822: return;
1823: }
1824: else if ((*s_etat_processus).test_instruction == 'Y')
1825: {
1826: (*s_etat_processus).nombre_arguments = -1;
1827: return;
1828: }
1829:
1830: if (test_cfsf(s_etat_processus, 31) == d_vrai)
1831: {
1832: if (empilement_pile_last(s_etat_processus, 2) == d_erreur)
1833: {
1834: return;
1835: }
1836: }
1837:
1838: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1839: &s_objet_argument_1) == d_erreur)
1840: {
1841: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1842: return;
1843: }
1844:
1845: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
1846: &s_objet_argument_2) == d_erreur)
1847: {
1848: liberation(s_etat_processus, s_objet_argument_1);
1849:
1850: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
1851: return;
1852: }
1853:
1854: if (((*s_objet_argument_2).type == FCH) &&
1855: ((*s_objet_argument_1).type == CHN))
1856: {
1857: drapeau = d_faux;
1858:
1859: do
1860: {
1861: if ((chaine = conversion_majuscule((unsigned char *)
1862: (*s_objet_argument_1).objet)) == NULL)
1863: {
1864: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
1865: return;
1866: }
1867:
1868: if (strcmp(chaine, "WRITE") == 0)
1869: {
1870: lock.l_type = F_WRLCK;
1871: }
1872: else if (strcmp(chaine, "READ") == 0)
1873: {
1874: lock.l_type = F_RDLCK;
1875: }
1876: else if (strcmp(chaine, "NONE") == 0)
1877: {
1878: lock.l_type = F_UNLCK;
1879: }
1880: else
1881: {
1882: free(chaine);
1883:
1884: liberation(s_etat_processus, s_objet_argument_1);
1885: liberation(s_etat_processus, s_objet_argument_2);
1886:
1887: (*s_etat_processus).erreur_execution = d_ex_verrou_indefini;
1888: return;
1889: }
1890:
1891: free(chaine);
1892:
1893: lock.l_whence = SEEK_SET;
1894: lock.l_start = 0;
1895: lock.l_len = 0;
1896: lock.l_pid = getpid();
1897:
1898: if ((descripteur = descripteur_fichier(s_etat_processus,
1899: (struct_fichier *) (*s_objet_argument_2).objet)) == NULL)
1900: {
1901: return;
1902: }
1903:
1.5 bertrand 1904: if (fcntl(fileno((*descripteur).descripteur_c), F_GETLK, &lock)
1905: == -1)
1.1 bertrand 1906: {
1907: liberation(s_etat_processus, s_objet_argument_1);
1908: liberation(s_etat_processus, s_objet_argument_2);
1909:
1910: (*s_etat_processus).erreur_execution = d_ex_fichier_verrouille;
1911: return;
1912: }
1913:
1.12 bertrand 1914: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1915: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
1916: {
1917: (*s_etat_processus).erreur_systeme = d_es_processus;
1918: return;
1919: }
1.12 bertrand 1920: # else
1921: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
1922: {
1923: (*s_etat_processus).erreur_systeme = d_es_processus;
1924: return;
1925: }
1926: # endif
1.1 bertrand 1927:
1.12 bertrand 1928: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 1929: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 1930: # else
1931: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
1932: # endif
1.1 bertrand 1933: {
1934: if (errno != EINTR)
1935: {
1936: (*s_etat_processus).erreur_systeme = d_es_processus;
1937: return;
1938: }
1939: }
1940:
1941: if (lock.l_type == F_UNLCK)
1942: {
1943: drapeau = d_vrai;
1944: }
1945: else
1946: {
1947: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
1948: {
1949: affectation_interruptions_logicielles(s_etat_processus);
1950: }
1951:
1952: if ((*s_etat_processus).nombre_interruptions_en_queue
1953: != 0)
1954: {
1955: registre_instruction_valide =
1956: (*s_etat_processus).instruction_valide;
1957: traitement_interruptions_logicielles(
1958: s_etat_processus);
1959: (*s_etat_processus).instruction_valide =
1960: registre_instruction_valide;
1961: }
1962:
1963: nanosleep(&attente, NULL);
1964: scrutation_injection(s_etat_processus);
1965:
1966: INCR_GRANULARITE(attente.tv_nsec);
1967: }
1968: } while((drapeau == d_faux) && ((*s_etat_processus)
1969: .var_volatile_requete_arret != -1));
1970: }
1971: else
1972: {
1973: liberation(s_etat_processus, s_objet_argument_1);
1974: liberation(s_etat_processus, s_objet_argument_2);
1975:
1976: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
1977: return;
1978: }
1979:
1980: return;
1981: }
1982:
1983:
1984: /*
1985: ================================================================================
1986: Fonction 'wfproc'
1987: ================================================================================
1988: Entrées : pointeur sur une structure struct_processus
1989: --------------------------------------------------------------------------------
1990: Sorties :
1991: --------------------------------------------------------------------------------
1992: Effets de bord : néant
1993: ================================================================================
1994: */
1995:
1996: void
1997: instruction_wfproc(struct_processus *s_etat_processus)
1998: {
1999: logical1 drapeau_fin;
2000:
2001: struct_liste_chainee *l_element_courant;
2002:
2003: struct_objet *s_objet_argument;
2004:
2005: struct timespec attente;
2006:
2007: unsigned char registre_instruction_valide;
2008:
2009: (*s_etat_processus).erreur_execution = d_ex;
2010:
2011: attente.tv_sec = 0;
2012: attente.tv_nsec = GRANULARITE_us * 1000;
2013:
2014: if ((*s_etat_processus).affichage_arguments == 'Y')
2015: {
2016: printf("\n WFPROC ");
2017:
2018: if ((*s_etat_processus).langue == 'F')
2019: {
2020: printf("(attente de la fin d'un processus fils)\n\n");
2021: }
2022: else
2023: {
2024: printf("(wait for child process end)\n\n");
2025: }
2026:
2027: printf(" 1: %s\n", d_PRC);
2028:
2029: return;
2030: }
2031: else if ((*s_etat_processus).test_instruction == 'Y')
2032: {
2033: (*s_etat_processus).nombre_arguments = -1;
2034: return;
2035: }
2036:
2037: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2038: {
2039: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2040: {
2041: return;
2042: }
2043: }
2044:
2045: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2046: &s_objet_argument) == d_erreur)
2047: {
2048: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2049: return;
2050: }
2051:
2052: if ((*s_objet_argument).type == PRC)
2053: {
2054: drapeau_fin = d_faux;
2055:
2056: if ((*s_etat_processus).profilage == d_vrai)
2057: {
2058: profilage(s_etat_processus, "Interprocess or interthread "
2059: "communications (WFPROC)");
2060:
2061: if ((*s_etat_processus).erreur_systeme != d_es)
2062: {
2063: return;
2064: }
2065: }
2066:
2067: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2068: {
2069: if ((*s_etat_processus).profilage == d_vrai)
2070: {
2071: profilage(s_etat_processus, NULL);
2072: }
2073:
2074: (*s_etat_processus).erreur_systeme = d_es_processus;
2075: return;
2076: }
2077:
2078: while(drapeau_fin == d_faux)
2079: {
2080: l_element_courant = (struct_liste_chainee *)
2081: (*s_etat_processus).l_base_pile_processus;
2082:
2083: while(l_element_courant != NULL)
2084: {
2085: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2086: .donnee).objet)).thread).processus_detache == d_vrai)
2087: {
2088: if ((*(*((struct_processus_fils *)
2089: (*s_objet_argument).objet)).thread)
2090: .processus_detache == d_vrai)
2091: {
2092: if ((*(*((struct_processus_fils *)
2093: (*(*l_element_courant)
2094: .donnee).objet)).thread).pid ==
2095: (*(*((struct_processus_fils *)
2096: (*s_objet_argument).objet)).thread).pid)
2097: {
2098: break;
2099: }
2100: }
2101: }
2102: else
2103: {
2104: if ((*(*((struct_processus_fils *)
2105: (*s_objet_argument).objet)).thread)
2106: .processus_detache == d_faux)
2107: {
2108: if ((pthread_equal((*(*((struct_processus_fils *)
2109: (*(*l_element_courant).donnee).objet)).thread)
2110: .tid, (*(*((struct_processus_fils *)
2111: (*s_objet_argument).objet)).thread).tid) != 0)
2112: && ((*(*((struct_processus_fils *)
2113: (*(*l_element_courant).donnee).objet)).thread)
2114: .pid == (*(*((struct_processus_fils *)
2115: (*s_objet_argument).objet)).thread).pid))
2116: {
2117: break;
2118: }
2119: }
2120: }
2121:
2122: l_element_courant = (*l_element_courant).suivant;
2123: }
2124:
2125: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2126: {
2127: if ((*s_etat_processus).profilage == d_vrai)
2128: {
2129: profilage(s_etat_processus, NULL);
2130: }
2131:
2132: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2133: {
2134: (*s_etat_processus).erreur_systeme = d_es_processus;
2135: return;
2136: }
2137:
2138: liberation(s_etat_processus, s_objet_argument);
2139: return;
2140: }
2141:
2142: if (l_element_courant == NULL)
2143: {
2144: /*
2145: * Si l_element_courant vaut NULL, le processus n'existe plus.
2146: */
2147:
2148: drapeau_fin = d_vrai;
2149: }
2150: else
2151: {
2152: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2153: .donnee).objet)).thread).processus_detache == d_vrai)
2154: {
2155: if (kill((*(*((struct_processus_fils *)
2156: (*(*l_element_courant).donnee).objet)).thread).pid,
2157: 0) != 0)
2158: {
2159: drapeau_fin = d_vrai;
2160: }
2161: else
2162: {
2163: drapeau_fin = d_faux;
2164: }
2165: }
2166: else
2167: {
2168: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2169: (*(*l_element_courant).donnee).objet)).thread)
2170: .mutex)) != 0)
2171: {
2172: if ((*s_etat_processus).profilage == d_vrai)
2173: {
2174: profilage(s_etat_processus, NULL);
2175: }
2176:
2177: (*s_etat_processus).erreur_systeme = d_es_processus;
2178: return;
2179: }
2180:
2181: if ((*(*((struct_processus_fils *)
2182: (*(*l_element_courant).donnee).objet)).thread)
2183: .thread_actif == d_faux)
2184: {
2185: drapeau_fin = d_vrai;
2186: }
2187: else
2188: {
2189: drapeau_fin = d_faux;
2190: }
2191:
2192: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2193: (*(*l_element_courant).donnee).objet)).thread)
2194: .mutex)) != 0)
2195: {
2196: if ((*s_etat_processus).profilage == d_vrai)
2197: {
2198: profilage(s_etat_processus, NULL);
2199: }
2200:
2201: (*s_etat_processus).erreur_systeme = d_es_processus;
2202: return;
2203: }
2204: }
2205:
2206: if (drapeau_fin == d_faux)
2207: {
2208: /*
2209: * Le processus n'est pas terminé
2210: */
2211:
2212: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2213: {
2214: if ((*s_etat_processus).profilage == d_vrai)
2215: {
2216: profilage(s_etat_processus, NULL);
2217: }
2218:
2219: (*s_etat_processus).erreur_systeme =
2220: d_es_processus;
2221: return;
2222: }
2223:
2224: if ((*s_etat_processus).nombre_interruptions_non_affectees
2225: != 0)
2226: {
2227: affectation_interruptions_logicielles(s_etat_processus);
2228: }
2229:
2230: if ((*s_etat_processus).nombre_interruptions_en_queue
2231: != 0)
2232: {
2233: registre_instruction_valide =
2234: (*s_etat_processus).instruction_valide;
2235: traitement_interruptions_logicielles(
2236: s_etat_processus);
2237: (*s_etat_processus).instruction_valide =
2238: registre_instruction_valide;
2239: }
2240:
1.12 bertrand 2241: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2242: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2243: {
2244: (*s_etat_processus).erreur_systeme = d_es_processus;
2245: return;
2246: }
1.12 bertrand 2247: # else
2248: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2249: {
2250: (*s_etat_processus).erreur_systeme = d_es_processus;
2251: return;
2252: }
2253: # endif
1.1 bertrand 2254:
2255: nanosleep(&attente, NULL);
2256:
1.12 bertrand 2257: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2258: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2259: # else
2260: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2261: # endif
1.1 bertrand 2262: {
2263: if (errno != EINTR)
2264: {
2265: (*s_etat_processus).erreur_systeme = d_es_processus;
2266: return;
2267: }
2268: }
2269:
2270: scrutation_injection(s_etat_processus);
2271:
2272: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2273: {
2274: if ((*s_etat_processus).profilage == d_vrai)
2275: {
2276: profilage(s_etat_processus, NULL);
2277: }
2278:
2279: (*s_etat_processus).erreur_systeme =
2280: d_es_processus;
2281: return;
2282: }
2283: }
2284: }
2285:
2286: INCR_GRANULARITE(attente.tv_nsec);
2287: }
2288:
2289: if ((*s_etat_processus).profilage == d_vrai)
2290: {
2291: profilage(s_etat_processus, NULL);
2292: }
2293:
2294: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2295: {
2296: (*s_etat_processus).erreur_systeme = d_es_processus;
2297: return;
2298: }
2299: }
2300: else
2301: {
2302: liberation(s_etat_processus, s_objet_argument);
2303:
2304: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2305: return;
2306: }
2307:
2308: liberation(s_etat_processus, s_objet_argument);
2309:
2310: return;
2311: }
2312:
2313:
2314: /*
2315: ================================================================================
2316: Fonction 'wfdata'
2317: ================================================================================
2318: Entrées : pointeur sur une structure struct_processus
2319: --------------------------------------------------------------------------------
2320: Sorties :
2321: --------------------------------------------------------------------------------
2322: Effets de bord : néant
2323: ================================================================================
2324: */
2325:
2326: void
2327: instruction_wfdata(struct_processus *s_etat_processus)
2328: {
2329: logical1 drapeau_fin;
2330:
2331: struct_liste_chainee *l_element_courant;
2332:
2333: struct_objet *s_objet_argument;
2334:
2335: struct timespec attente;
2336:
2337: unsigned char registre_instruction_valide;
2338:
2339: (*s_etat_processus).erreur_execution = d_ex;
2340:
2341: attente.tv_sec = 0;
2342: attente.tv_nsec = GRANULARITE_us * 1000;
2343:
2344: if ((*s_etat_processus).affichage_arguments == 'Y')
2345: {
2346: printf("\n WFDATA ");
2347:
2348: if ((*s_etat_processus).langue == 'F')
2349: {
2350: printf("(attente de données d'un processus fils)\n\n");
2351: }
2352: else
2353: {
2354: printf("(wait for data from child process)\n\n");
2355: }
2356:
2357: printf(" 1: %s\n", d_PRC);
2358:
2359: return;
2360: }
2361: else if ((*s_etat_processus).test_instruction == 'Y')
2362: {
2363: (*s_etat_processus).nombre_arguments = -1;
2364: return;
2365: }
2366:
2367: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2368: {
2369: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2370: {
2371: return;
2372: }
2373: }
2374:
2375: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2376: &s_objet_argument) == d_erreur)
2377: {
2378: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2379: return;
2380: }
2381:
2382: if ((*s_objet_argument).type == PRC)
2383: {
2384: drapeau_fin = d_faux;
2385:
2386: if ((*s_etat_processus).profilage == d_vrai)
2387: {
2388: profilage(s_etat_processus, "Interprocess or interthread "
2389: "communications (WFDATA)");
2390:
2391: if ((*s_etat_processus).erreur_systeme != d_es)
2392: {
2393: return;
2394: }
2395: }
2396:
2397: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2398: {
2399: if ((*s_etat_processus).profilage == d_vrai)
2400: {
2401: profilage(s_etat_processus, NULL);
2402: }
2403:
2404: (*s_etat_processus).erreur_systeme = d_es_processus;
2405: return;
2406: }
2407:
2408: while(drapeau_fin == d_faux)
2409: {
2410: l_element_courant = (struct_liste_chainee *)
2411: (*s_etat_processus).l_base_pile_processus;
2412:
2413: while(l_element_courant != NULL)
2414: {
2415: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2416: .donnee).objet)).thread).processus_detache == d_vrai)
2417: {
2418: if (((*(*((struct_processus_fils *) (*(*l_element_courant)
2419: .donnee).objet)).thread).pid ==
2420: (*(*((struct_processus_fils *)
2421: (*s_objet_argument).objet)).thread).pid)
2422: && ((*(*((struct_processus_fils *)
2423: (*s_objet_argument).objet)).thread)
2424: .processus_detache == d_vrai))
2425: {
2426: break;
2427: }
2428: }
2429: else
2430: {
2431: if ((pthread_equal((*(*((struct_processus_fils *)
2432: (*(*l_element_courant).donnee).objet)).thread).tid,
2433: (*(*((struct_processus_fils *) (*s_objet_argument)
2434: .objet)).thread).tid) != 0) &&
2435: ((*(*((struct_processus_fils *)
2436: (*(*l_element_courant).donnee).objet)).thread).pid
2437: == (*(*((struct_processus_fils *)
2438: (*s_objet_argument).objet)).thread).pid) &&
2439: ((*(*((struct_processus_fils *)
2440: (*s_objet_argument).objet)).thread)
2441: .processus_detache == d_faux))
2442: {
2443: break;
2444: }
2445: }
2446:
2447: l_element_courant = (*l_element_courant).suivant;
2448: }
2449:
2450: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2451: {
2452: if ((*s_etat_processus).profilage == d_vrai)
2453: {
2454: profilage(s_etat_processus, NULL);
2455: }
2456:
2457: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2458: {
2459: (*s_etat_processus).erreur_systeme = d_es_processus;
2460: return;
2461: }
2462:
2463: liberation(s_etat_processus, s_objet_argument);
2464: return;
2465: }
2466:
2467: if (l_element_courant != NULL)
2468: {
2469: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
2470: (*(*l_element_courant).donnee).objet)).thread).mutex))
2471: != 0)
2472: {
2473: (*s_etat_processus).erreur_systeme = d_es_processus;
2474: return;
2475: }
2476:
2477: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
2478: .donnee).objet)).thread).nombre_objets_dans_pipe != 0)
2479: {
2480: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2481: (*(*l_element_courant).donnee).objet)).thread)
2482: .mutex)) != 0)
2483: {
2484: (*s_etat_processus).erreur_systeme = d_es_processus;
2485: return;
2486: }
2487:
2488: drapeau_fin = d_vrai;
2489: }
2490: else
2491: {
2492: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
2493: (*(*l_element_courant).donnee).objet)).thread)
2494: .mutex)) != 0)
2495: {
2496: (*s_etat_processus).erreur_systeme = d_es_processus;
2497: return;
2498: }
2499:
2500: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2501: {
2502: if ((*s_etat_processus).profilage == d_vrai)
2503: {
2504: profilage(s_etat_processus, NULL);
2505: }
2506:
2507: (*s_etat_processus).erreur_systeme =
2508: d_es_processus;
2509: return;
2510: }
2511:
1.12 bertrand 2512: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2513: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2514: {
2515: (*s_etat_processus).erreur_systeme = d_es_processus;
2516: return;
2517: }
1.12 bertrand 2518: # else
2519: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2520: {
2521: (*s_etat_processus).erreur_systeme = d_es_processus;
2522: return;
2523: }
2524: # endif
1.1 bertrand 2525:
2526: nanosleep(&attente, NULL);
2527:
1.12 bertrand 2528: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2529: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2530: # else
2531: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2532: # endif
1.1 bertrand 2533: {
2534: if (errno != EINTR)
2535: {
2536: (*s_etat_processus).erreur_systeme = d_es_processus;
2537: return;
2538: }
2539: }
2540:
2541: scrutation_injection(s_etat_processus);
2542:
2543: if ((*s_etat_processus).nombre_interruptions_non_affectees
2544: != 0)
2545: {
2546: affectation_interruptions_logicielles(s_etat_processus);
2547: }
2548:
2549: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
2550: {
2551: registre_instruction_valide =
2552: (*s_etat_processus).instruction_valide;
2553: traitement_interruptions_logicielles(s_etat_processus);
2554: (*s_etat_processus).instruction_valide =
2555: registre_instruction_valide;
2556: }
2557:
2558: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2559: {
2560: if ((*s_etat_processus).profilage == d_vrai)
2561: {
2562: profilage(s_etat_processus, NULL);
2563: }
2564:
2565: return;
2566: }
2567:
2568: if (pthread_mutex_lock(&((*s_etat_processus).mutex)) != 0)
2569: {
2570: if ((*s_etat_processus).profilage == d_vrai)
2571: {
2572: profilage(s_etat_processus, NULL);
2573: }
2574:
2575: (*s_etat_processus).erreur_systeme =
2576: d_es_processus;
2577: return;
2578: }
2579: }
2580: }
2581: else
2582: {
2583: drapeau_fin = d_vrai;
2584: (*s_etat_processus).erreur_execution = d_ex_processus;
2585: }
2586:
2587: INCR_GRANULARITE(attente.tv_nsec);
2588: }
2589:
2590: if ((*s_etat_processus).profilage == d_vrai)
2591: {
2592: profilage(s_etat_processus, NULL);
2593: }
2594:
2595: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
2596: {
2597: (*s_etat_processus).erreur_systeme = d_es_processus;
2598: return;
2599: }
2600: }
2601: else
2602: {
2603: liberation(s_etat_processus, s_objet_argument);
2604:
2605: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
2606: return;
2607: }
2608:
2609: liberation(s_etat_processus, s_objet_argument);
2610:
2611: return;
2612: }
2613:
2614:
2615: /*
2616: ================================================================================
2617: Fonction 'wfsock'
2618: ================================================================================
2619: Entrées : pointeur sur une structure struct_processus
2620: --------------------------------------------------------------------------------
2621: Sorties :
2622: --------------------------------------------------------------------------------
2623: Effets de bord : néant
2624: ================================================================================
2625: */
2626:
2627: void
2628: instruction_wfsock(struct_processus *s_etat_processus)
2629: {
2630: int erreur;
2631:
2632: logical1 drapeau;
2633:
2634: socklen_t longueur;
2635:
2636: struct_liste_chainee *l_element_courant;
2637:
2638: struct_objet *s_objet_argument;
2639: struct_objet *s_objet_resultat;
2640:
2641: struct sockaddr_in adresse_ipv4;
1.20 bertrand 2642: # ifdef IPV6
1.1 bertrand 2643: struct sockaddr_in6 adresse_ipv6;
1.20 bertrand 2644: # endif
1.1 bertrand 2645:
2646: unsigned long i;
2647:
2648: if ((*s_etat_processus).affichage_arguments == 'Y')
2649: {
2650: printf("\n WFSOCK ");
2651:
2652: if ((*s_etat_processus).langue == 'F')
2653: {
2654: printf("(attente d'une connexion sur une socket)\n\n");
2655: }
2656: else
2657: {
2658: printf("(wait for connection on a socket)\n\n");
2659: }
2660:
2661: printf(" 1: %s\n", d_SCK);
2662: printf("-> 2: %s\n", d_SCK);
2663: printf(" 1: %s\n", d_SCK);
2664:
2665: return;
2666: }
2667: else if ((*s_etat_processus).test_instruction == 'Y')
2668: {
2669: (*s_etat_processus).nombre_arguments = -1;
2670: return;
2671: }
2672:
2673: if (test_cfsf(s_etat_processus, 31) == d_vrai)
2674: {
2675: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
2676: {
2677: return;
2678: }
2679: }
2680:
2681: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
2682: &s_objet_argument) == d_erreur)
2683: {
2684: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
2685: return;
2686: }
2687:
2688: if ((*s_objet_argument).type == SCK)
2689: {
2690: if ((strcmp((*((struct_socket *) (*s_objet_argument).objet)).type,
2691: "STREAM") != 0) && (strcmp((*((struct_socket *)
2692: (*s_objet_argument).objet)).type, "SEQUENTIAL DATAGRAM") != 0))
2693: {
2694: liberation(s_etat_processus, s_objet_argument);
2695:
2696: (*s_etat_processus).erreur_execution = d_ex_erreur_acces_fichier;
2697: return;
2698: }
2699:
2700: if ((s_objet_resultat = copie_objet(s_etat_processus, s_objet_argument,
2701: 'O')) == NULL)
2702: {
2703: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
2704: return;
2705: }
2706:
2707: (*((struct_socket *) (*s_objet_resultat).objet)).socket_en_ecoute = 'N';
2708: (*((struct_socket *) (*s_objet_resultat).objet)).effacement = 'N';
2709:
2710: if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine == PF_INET)
2711: {
2712: longueur = sizeof(adresse_ipv4);
2713:
2714: do
2715: {
2716: drapeau = d_vrai;
2717:
1.12 bertrand 2718: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2719: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2720: {
2721: (*s_etat_processus).erreur_systeme = d_es_processus;
2722: return;
2723: }
1.12 bertrand 2724: # else
2725: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2726: {
2727: (*s_etat_processus).erreur_systeme = d_es_processus;
2728: return;
2729: }
2730: # endif
1.1 bertrand 2731:
2732: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2733: accept((*((struct_socket *) (*s_objet_argument).objet))
2734: .socket, (struct sockaddr *) &adresse_ipv4, &longueur))
2735: < 0)
2736: {
2737: erreur = errno;
2738:
1.12 bertrand 2739: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2740: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2741: # else
2742: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2743: # endif
1.1 bertrand 2744: {
2745: if (errno != EINTR)
2746: {
2747: (*s_etat_processus).erreur_systeme = d_es_processus;
2748: return;
2749: }
2750: }
2751:
2752: if (erreur != EINTR)
2753: {
2754: liberation(s_etat_processus, s_objet_argument);
2755: liberation(s_etat_processus, s_objet_resultat);
2756:
2757: (*s_etat_processus).erreur_execution =
2758: d_ex_erreur_acces_fichier;
2759: return;
2760: }
2761:
2762: scrutation_injection(s_etat_processus);
2763:
2764: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2765: {
2766: drapeau = d_vrai;
2767: }
2768: else
2769: {
2770: drapeau = d_faux;
2771: }
2772: }
2773: else
2774: {
1.12 bertrand 2775: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2776: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2777: # else
2778: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2779: # endif
1.1 bertrand 2780: {
2781: if (errno != EINTR)
2782: {
2783: (*s_etat_processus).erreur_systeme = d_es_processus;
2784: return;
2785: }
2786: }
2787: }
2788: } while(drapeau == d_faux);
2789:
2790: if (((*((struct_socket *) (*s_objet_resultat).objet))
2791: .adresse_distante = malloc(22 *
2792: sizeof(unsigned char))) == NULL)
2793: {
2794: (*s_etat_processus).erreur_systeme =
2795: d_es_allocation_memoire;
2796: return;
2797: }
2798:
2799: sprintf((*((struct_socket *) (*s_objet_resultat).objet))
2800: .adresse_distante, "%d.%d.%d.%d(%d)",
2801: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 24) & 0xFF,
2802: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 16) & 0xFF,
2803: (ntohl(adresse_ipv4.sin_addr.s_addr) >> 8) & 0xFF,
2804: ntohl(adresse_ipv4.sin_addr.s_addr) & 0xFF,
2805: ntohs(adresse_ipv4.sin_port));
2806: }
2807: else if ((*((struct_socket *) (*s_objet_resultat).objet)).domaine ==
2808: PF_INET6)
2809: {
1.20 bertrand 2810: # ifdef IPV6
1.1 bertrand 2811: longueur = sizeof(adresse_ipv6);
2812:
2813: do
2814: {
2815: drapeau = d_vrai;
2816:
1.12 bertrand 2817: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2818: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2819: {
2820: (*s_etat_processus).erreur_systeme = d_es_processus;
2821: return;
2822: }
1.12 bertrand 2823: # else
2824: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2825: {
2826: (*s_etat_processus).erreur_systeme = d_es_processus;
2827: return;
2828: }
2829: # endif
1.1 bertrand 2830:
2831: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2832: accept((*((struct_socket *) (*s_objet_argument).objet))
2833: .socket, (struct sockaddr *) &adresse_ipv6, &longueur))
2834: < 0)
2835: {
2836: erreur = errno;
2837:
1.12 bertrand 2838: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2839: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2840: # else
2841: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2842: # endif
1.1 bertrand 2843: {
2844: if (errno != EINTR)
2845: {
2846: (*s_etat_processus).erreur_systeme = d_es_processus;
2847: return;
2848: }
2849: }
2850:
2851: if (erreur != EINTR)
2852: {
2853: liberation(s_etat_processus, s_objet_argument);
2854: liberation(s_etat_processus, s_objet_resultat);
2855:
2856: (*s_etat_processus).erreur_execution =
2857: d_ex_erreur_acces_fichier;
2858: return;
2859: }
2860:
2861: scrutation_injection(s_etat_processus);
2862:
2863: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2864: {
2865: drapeau = d_vrai;
2866: }
2867: else
2868: {
2869: drapeau = d_faux;
2870: }
2871: }
2872: else
2873: {
1.12 bertrand 2874: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2875: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2876: # else
2877: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2878: # endif
1.1 bertrand 2879: {
2880: if (errno != EINTR)
2881: {
2882: (*s_etat_processus).erreur_systeme = d_es_processus;
2883: return;
2884: }
2885: }
2886: }
2887: } while(drapeau == d_faux);
2888:
2889: if (((*((struct_socket *) (*s_objet_resultat).objet))
2890: .adresse_distante = malloc(55 *
2891: sizeof(unsigned char))) == NULL)
2892: {
2893: (*s_etat_processus).erreur_systeme =
2894: d_es_allocation_memoire;
2895: return;
2896: }
2897:
2898: (*((struct_socket *) (*s_objet_resultat).objet))
2899: .adresse_distante = d_code_fin_chaine;
2900:
2901: for(i = 0; i < 16; i++)
2902: {
2903: sprintf((*((struct_socket *) (*s_objet_resultat)
2904: .objet)).adresse_distante, (i == 0) ? "%s%X" : "%s:%X",
2905: (*((struct_socket *) (*s_objet_resultat)
2906: .objet)).adresse_distante,
2907: adresse_ipv6.sin6_addr.s6_addr[i]);
2908: }
2909:
2910: sprintf((*((struct_socket *) (*s_objet_resultat)
2911: .objet)).adresse_distante, "%s(%u)",
2912: (*((struct_socket *) (*s_objet_resultat)
2913: .objet)).adresse_distante, ntohs(adresse_ipv6.sin6_port));
1.20 bertrand 2914: # else
1.22 bertrand 2915: if ((*s_etat_processus).langue == 'F')
2916: {
2917: printf("+++Attention : Support du protocole"
1.23 bertrand 2918: " IPv6 indisponible\n");
1.22 bertrand 2919: }
2920: else
2921: {
1.25 bertrand 2922: printf("+++Warning : IPv6 support "
1.22 bertrand 2923: "unavailable\n");
2924: }
1.20 bertrand 2925: # endif
1.1 bertrand 2926: }
2927: else
2928: {
2929: longueur = 0;
2930:
2931: do
2932: {
2933: drapeau = d_vrai;
2934:
1.12 bertrand 2935: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2936: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
2937: {
2938: (*s_etat_processus).erreur_systeme = d_es_processus;
2939: return;
2940: }
1.12 bertrand 2941: # else
2942: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
2943: {
2944: (*s_etat_processus).erreur_systeme = d_es_processus;
2945: return;
2946: }
2947: # endif
1.1 bertrand 2948:
2949: if (((*((struct_socket *) (*s_objet_resultat).objet)).socket =
2950: accept((*((struct_socket *) (*s_objet_argument).objet))
2951: .socket, NULL, &longueur)) < 0)
2952: {
2953: erreur = errno;
2954:
1.12 bertrand 2955: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2956: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2957: # else
2958: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2959: # endif
1.1 bertrand 2960: {
2961: if (errno != EINTR)
2962: {
2963: (*s_etat_processus).erreur_systeme = d_es_processus;
2964: return;
2965: }
2966: }
2967:
2968: if (erreur != EINTR)
2969: {
2970: liberation(s_etat_processus, s_objet_argument);
2971: liberation(s_etat_processus, s_objet_resultat);
2972:
2973: (*s_etat_processus).erreur_execution =
2974: d_ex_erreur_acces_fichier;
2975: return;
2976: }
2977:
2978: scrutation_injection(s_etat_processus);
2979:
2980: if ((*s_etat_processus).var_volatile_requete_arret != 0)
2981: {
2982: drapeau = d_vrai;
2983: }
2984: else
2985: {
2986: drapeau = d_faux;
2987: }
2988: }
2989: else
2990: {
1.12 bertrand 2991: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 2992: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 2993: # else
2994: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
2995: # endif
1.1 bertrand 2996: {
2997: if (errno != EINTR)
2998: {
2999: (*s_etat_processus).erreur_systeme = d_es_processus;
3000: return;
3001: }
3002: }
3003: }
3004: } while(drapeau == d_faux);
3005: }
3006:
3007: // Si accept() renvoie une erreur non récupérée, il ne peut s'agir
3008: // que de EINTR sachant qu'une requête d'arrêt est en court de
3009: // traitement.
3010:
3011: if ((*((struct_socket *) (*s_objet_resultat).objet)).socket >= 0)
3012: {
3013: l_element_courant = (*s_etat_processus).s_sockets;
3014:
3015: if (l_element_courant == NULL)
3016: {
3017: if (((*s_etat_processus).s_sockets =
3018: allocation_maillon(s_etat_processus)) == NULL)
3019: {
3020: (*s_etat_processus).erreur_systeme =
3021: d_es_allocation_memoire;
3022: return;
3023: }
3024:
3025: (*(*s_etat_processus).s_sockets).suivant = NULL;
3026: l_element_courant = (*s_etat_processus).s_sockets;
3027: }
3028: else
3029: {
3030: /*
3031: * Ajout d'un élément à la fin de la liste chaînée
3032: */
3033:
3034: while((*l_element_courant).suivant != NULL)
3035: {
3036: l_element_courant = (*l_element_courant).suivant;
3037: }
3038:
3039: if (((*l_element_courant).suivant =
3040: allocation_maillon(s_etat_processus)) == NULL)
3041: {
3042: (*s_etat_processus).erreur_systeme =
3043: d_es_allocation_memoire;
3044: return;
3045: }
3046:
3047: l_element_courant = (*l_element_courant).suivant;
3048: (*l_element_courant).suivant = NULL;
3049: }
3050:
3051: if (((*l_element_courant).donnee = copie_objet(s_etat_processus,
3052: s_objet_resultat, 'O')) == NULL)
3053: {
3054: (*s_etat_processus).erreur_systeme = d_es_allocation_memoire;
3055: return;
3056: }
3057: }
3058:
3059: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3060: s_objet_argument) == d_erreur)
3061: {
3062: return;
3063: }
3064:
3065: if (empilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3066: s_objet_resultat) == d_erreur)
3067: {
3068: return;
3069: }
3070: }
3071: else
3072: {
3073: liberation(s_etat_processus, s_objet_argument);
3074:
3075: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3076: return;
3077: }
3078:
3079: return;
3080: }
3081:
3082:
3083: /*
3084: ================================================================================
3085: Fonction 'wfswi'
3086: ================================================================================
3087: Entrées : pointeur sur une structure struct_processus
3088: --------------------------------------------------------------------------------
3089: Sorties :
3090: --------------------------------------------------------------------------------
3091: Effets de bord : néant
3092: ================================================================================
3093: */
3094:
3095: void
3096: instruction_wfswi(struct_processus *s_etat_processus)
3097: {
3098: integer8 interruption;
3099:
3100: logical1 drapeau_fin;
3101:
3102: struct_objet *s_objet_argument;
3103:
3104: struct timespec attente;
3105:
3106: (*s_etat_processus).erreur_execution = d_ex;
3107:
3108: attente.tv_sec = 0;
3109: attente.tv_nsec = GRANULARITE_us * 1000;
3110:
3111: if ((*s_etat_processus).affichage_arguments == 'Y')
3112: {
3113: printf("\n WFSWI ");
3114:
3115: if ((*s_etat_processus).langue == 'F')
3116: {
3117: printf("(attente d'une interruption)\n\n");
3118: }
3119: else
3120: {
3121: printf("(wait for interrupt)\n\n");
3122: }
3123:
3124: printf(" 1: %s\n", d_INT);
3125:
3126: return;
3127: }
3128: else if ((*s_etat_processus).test_instruction == 'Y')
3129: {
3130: (*s_etat_processus).nombre_arguments = -1;
3131: return;
3132: }
3133:
3134: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3135: {
3136: if (empilement_pile_last(s_etat_processus, 1) == d_erreur)
3137: {
3138: return;
3139: }
3140: }
3141:
3142: if (depilement(s_etat_processus, &((*s_etat_processus).l_base_pile),
3143: &s_objet_argument) == d_erreur)
3144: {
3145: (*s_etat_processus).erreur_execution = d_ex_manque_argument;
3146: return;
3147: }
3148:
3149: if ((*s_objet_argument).type == INT)
3150: {
3151: drapeau_fin = d_faux;
3152:
3153: interruption = (*((integer8 *) (*s_objet_argument).objet));
3154:
3155: if ((interruption < 1) || (interruption > d_NOMBRE_INTERRUPTIONS))
3156: {
3157: liberation(s_etat_processus, s_objet_argument);
3158:
3159: (*s_etat_processus).erreur_execution = d_ex_interruption_invalide;
3160: return;
3161: }
3162:
3163: while(drapeau_fin == d_faux)
3164: {
3165: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3166: {
3167: liberation(s_etat_processus, s_objet_argument);
3168: return;
3169: }
3170:
3171: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3172: {
3173: affectation_interruptions_logicielles(s_etat_processus);
3174: }
3175:
3176: if ((*s_etat_processus).queue_interruptions[interruption - 1] > 0)
3177: {
3178: drapeau_fin = d_vrai;
3179: }
3180: else
3181: {
3182: nanosleep(&attente, NULL);
3183: scrutation_injection(s_etat_processus);
3184: INCR_GRANULARITE(attente.tv_nsec);
3185: }
3186: }
3187: }
3188: else
3189: {
3190: liberation(s_etat_processus, s_objet_argument);
3191:
3192: (*s_etat_processus).erreur_execution = d_ex_erreur_type_argument;
3193: return;
3194: }
3195:
3196: liberation(s_etat_processus, s_objet_argument);
3197:
3198: return;
3199: }
3200:
3201:
3202: /*
3203: ================================================================================
3204: Fonction 'wfpoke'
3205: ================================================================================
3206: Entrées : pointeur sur une structure struct_processus
3207: --------------------------------------------------------------------------------
3208: Sorties :
3209: --------------------------------------------------------------------------------
3210: Effets de bord : néant
3211: ================================================================================
3212: */
3213:
3214: void
3215: instruction_wfpoke(struct_processus *s_etat_processus)
3216: {
3217: struct timespec attente;
3218:
3219: unsigned char registre_instruction_valide;
3220:
3221: (*s_etat_processus).erreur_execution = d_ex;
3222:
3223: attente.tv_sec = 0;
3224: attente.tv_nsec = GRANULARITE_us * 1000;
3225:
3226: if ((*s_etat_processus).affichage_arguments == 'Y')
3227: {
3228: printf("\n WFPOKE ");
3229:
3230: if ((*s_etat_processus).langue == 'F')
3231: {
3232: printf("(attente de données en provenance du processus père)\n\n");
3233: printf(" Aucun argument\n");
3234: }
3235: else
3236: {
3237: printf("(wait for data from parent process)\n\n");
3238: printf(" No argument\n");
3239: }
3240:
3241: return;
3242: }
3243: else if ((*s_etat_processus).test_instruction == 'Y')
3244: {
3245: (*s_etat_processus).nombre_arguments = -1;
3246: return;
3247: }
3248:
3249: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3250: {
3251: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3252: {
3253: return;
3254: }
3255: }
3256:
3257: if ((*s_etat_processus).presence_pipes == d_faux)
3258: {
3259: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3260: return;
3261: }
3262:
3263: if ((*s_etat_processus).nombre_objets_injectes > 0)
3264: {
3265: return;
3266: }
3267:
3268: if ((*s_etat_processus).profilage == d_vrai)
3269: {
3270: profilage(s_etat_processus, "Interprocess or interthread "
3271: "communications (WFPOKE)");
3272:
3273: if ((*s_etat_processus).erreur_systeme != d_es)
3274: {
3275: return;
3276: }
3277: }
3278:
3279: do
3280: {
1.12 bertrand 3281: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 3282: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3283: {
3284: (*s_etat_processus).erreur_systeme = d_es_processus;
3285: return;
3286: }
1.12 bertrand 3287: # else
3288: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3289: {
3290: (*s_etat_processus).erreur_systeme = d_es_processus;
3291: return;
3292: }
3293: # endif
1.1 bertrand 3294:
3295: nanosleep(&attente, NULL);
3296:
1.12 bertrand 3297: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 3298: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 3299: # else
3300: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
3301: # endif
1.1 bertrand 3302: {
3303: if (errno != EINTR)
3304: {
3305: (*s_etat_processus).erreur_systeme = d_es_processus;
3306: return;
3307: }
3308: }
3309:
3310: scrutation_injection(s_etat_processus);
3311:
3312: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3313: {
3314: affectation_interruptions_logicielles(s_etat_processus);
3315: }
3316:
3317: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3318: {
3319: registre_instruction_valide =
3320: (*s_etat_processus).instruction_valide;
3321: traitement_interruptions_logicielles(s_etat_processus);
3322: (*s_etat_processus).instruction_valide =
3323: registre_instruction_valide;
3324: }
3325:
3326: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3327: {
3328: if ((*s_etat_processus).profilage == d_vrai)
3329: {
3330: profilage(s_etat_processus, NULL);
3331: }
3332:
3333: return;
3334: }
3335:
3336: INCR_GRANULARITE(attente.tv_nsec);
3337: } while((*s_etat_processus).nombre_objets_injectes == 0);
3338:
3339: return;
3340: }
3341:
3342:
3343: /*
3344: ================================================================================
3345: Fonction 'wfack'
3346: ================================================================================
3347: Entrées : pointeur sur une structure struct_processus
3348: --------------------------------------------------------------------------------
3349: Sorties :
3350: --------------------------------------------------------------------------------
3351: Effets de bord : néant
3352: ================================================================================
3353: */
3354:
3355: void
3356: instruction_wfack(struct_processus *s_etat_processus)
3357: {
3358: struct timespec attente;
3359:
3360: unsigned char registre_instruction_valide;
3361:
3362: (*s_etat_processus).erreur_execution = d_ex;
3363:
3364: attente.tv_sec = 0;
3365: attente.tv_nsec = GRANULARITE_us * 1000;
3366:
3367: if ((*s_etat_processus).affichage_arguments == 'Y')
3368: {
3369: printf("\n WFACK ");
3370:
3371: if ((*s_etat_processus).langue == 'F')
3372: {
3373: printf("(attente des acquittements de lecture)\n\n");
3374: printf(" Aucun argument\n");
3375: }
3376: else
3377: {
3378: printf("(wait for reading of data acknowledgement)\n\n");
3379: printf(" No argument\n");
3380: }
3381:
3382: return;
3383: }
3384: else if ((*s_etat_processus).test_instruction == 'Y')
3385: {
3386: (*s_etat_processus).nombre_arguments = -1;
3387: return;
3388: }
3389:
3390: if (test_cfsf(s_etat_processus, 31) == d_vrai)
3391: {
3392: if (empilement_pile_last(s_etat_processus, 0) == d_erreur)
3393: {
3394: return;
3395: }
3396: }
3397:
3398: if ((*s_etat_processus).presence_pipes == d_faux)
3399: {
3400: (*s_etat_processus).erreur_execution = d_ex_absence_processus_pere;
3401: return;
3402: }
3403:
3404: if ((*s_etat_processus).profilage == d_vrai)
3405: {
3406: profilage(s_etat_processus, "Interprocess or interthread communications"
3407: " (WFACK)");
3408:
3409: if ((*s_etat_processus).erreur_systeme != d_es)
3410: {
3411: return;
3412: }
3413: }
3414:
3415: while((*s_etat_processus).nombre_objets_envoyes_non_lus != 0)
3416: {
3417: scrutation_injection(s_etat_processus);
3418:
3419: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
3420: {
3421: affectation_interruptions_logicielles(s_etat_processus);
3422: }
3423:
3424: if ((*s_etat_processus).nombre_interruptions_en_queue != 0)
3425: {
3426: registre_instruction_valide =
3427: (*s_etat_processus).instruction_valide;
3428: traitement_interruptions_logicielles(s_etat_processus);
3429: (*s_etat_processus).instruction_valide =
3430: registre_instruction_valide;
3431: }
3432:
3433: if ((*s_etat_processus).var_volatile_requete_arret != 0)
3434: {
3435: if ((*s_etat_processus).profilage == d_vrai)
3436: {
3437: profilage(s_etat_processus, NULL);
3438: }
3439:
3440: return;
3441: }
3442:
1.12 bertrand 3443: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 3444: if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
3445: {
3446: (*s_etat_processus).erreur_systeme = d_es_processus;
3447: return;
3448: }
1.12 bertrand 3449: # else
3450: if (sem_post((*s_etat_processus).semaphore_fork) != 0)
3451: {
3452: (*s_etat_processus).erreur_systeme = d_es_processus;
3453: return;
3454: }
3455: # endif
1.1 bertrand 3456:
3457: nanosleep(&attente, NULL);
3458: INCR_GRANULARITE(attente.tv_nsec);
3459:
1.12 bertrand 3460: # ifndef SEMAPHORES_NOMMES
1.1 bertrand 3461: while(sem_wait(&((*s_etat_processus).semaphore_fork)) == -1)
1.12 bertrand 3462: # else
3463: while(sem_wait((*s_etat_processus).semaphore_fork) == -1)
3464: # endif
1.1 bertrand 3465: {
3466: if (errno != EINTR)
3467: {
3468: (*s_etat_processus).erreur_systeme = d_es_processus;
3469: return;
3470: }
3471: }
3472: }
3473:
3474: if ((*s_etat_processus).profilage == d_vrai)
3475: {
3476: profilage(s_etat_processus, NULL);
3477: }
3478:
3479: return;
3480: }
3481:
3482: // vim: ts=4