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gestion_threads.c
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1.15:
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Thu Apr 29 07:30:57 2010 UTC (15 years ago) by
bertrand
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CVS tags:
HEAD
Correction d'un point bloquant dans la gestion des processus
(affectation des interruptions logicielles survenant après l'arrêt du
processus père car le mutex de protection de la routine était déjà positionné
dans la fonction appelante). Ajout de la fonction CLRATEXIT.
1: /*
2: ================================================================================
3: RPL/2 (R) version 4.0.15
4: Copyright (C) 1989-2010 Dr. BERTRAND Joël
5:
6: This file is part of RPL/2.
7:
8: RPL/2 is free software; you can redistribute it and/or modify it
9: under the terms of the CeCILL V2 License as published by the french
10: CEA, CNRS and INRIA.
11:
12: RPL/2 is distributed in the hope that it will be useful, but WITHOUT
13: ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14: FITNESS FOR A PARTICULAR PURPOSE. See the CeCILL V2 License
15: for more details.
16:
17: You should have received a copy of the CeCILL License
18: along with RPL/2. If not, write to info@cecill.info.
19: ================================================================================
20: */
21:
22:
23: #include "rpl.conv.h"
24:
25:
26: /*
27: ================================================================================
28: Fonction de lancement d'un thread
29: ================================================================================
30: Entrées : pointeur sur une structure
31: --------------------------------------------------------------------------------
32: Sorties :
33: --------------------------------------------------------------------------------
34: Effets de bord : néant
35: ================================================================================
36: */
37:
38: void *
39: lancement_thread(void *argument)
40: {
41: int status;
42:
43: pid_t ppid;
44:
45: pthread_t tid_final;
46:
47: sig_atomic_t registre_stop;
48:
49: sigset_t set;
50:
51: ssize_t longueur_ecriture;
52:
53: struct_descripteur_thread *s_argument_thread;
54:
55: struct_liste_chainee *l_element_courant;
56: struct_liste_chainee *l_element_suivant;
57:
58: struct_objet *s_objet_temporaire;
59:
60: struct_processus *s_etat_processus;
61:
62: struct sigaction action;
63: struct sigaction registre;
64:
65: struct timespec attente;
66:
67: unsigned char *message;
68:
69: unsigned int erreur;
70:
71: unsigned long i;
72:
73: attente.tv_sec = 0;
74: attente.tv_nsec = GRANULARITE_us * 1000;
75:
76: s_argument_thread = (struct_descripteur_thread *) argument;
77: (*s_argument_thread).tid = pthread_self();
78: (*s_argument_thread).thread_actif = d_vrai;
79: s_etat_processus = (*s_argument_thread).s_nouvel_etat_processus;
80:
81: # ifndef SEMAPHORES_NOMMES
82: if (pthread_setspecific(semaphore_fork_processus_courant,
83: &((*s_etat_processus).semaphore_fork)) != 0)
84: # else
85: if (pthread_setspecific(semaphore_fork_processus_courant,
86: (*s_etat_processus).semaphore_fork) != 0)
87: # endif
88: {
89: (*s_etat_processus).erreur_systeme = d_es_processus;
90:
91: pthread_mutex_unlock(&((*s_etat_processus).mutex));
92:
93: pthread_mutex_lock(&((*s_argument_thread).mutex));
94: pthread_mutex_unlock(&((*s_argument_thread).mutex));
95:
96: (*s_argument_thread).thread_actif = d_faux;
97:
98: tid_final = -2;
99:
100: while((longueur_ecriture = write_atomic(s_etat_processus,
101: (*s_argument_thread).pipe_nombre_interruptions_attente[1],
102: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
103: {
104: if (longueur_ecriture == -1)
105: {
106: break;
107: }
108: }
109:
110: while((longueur_ecriture = write_atomic(s_etat_processus,
111: (*s_argument_thread).pipe_nombre_objets_attente[1],
112: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
113: {
114: if (longueur_ecriture == -1)
115: {
116: break;
117: }
118: }
119:
120: pthread_exit(NULL);
121: }
122:
123: if (pthread_mutex_unlock(&((*s_etat_processus).mutex)) != 0)
124: {
125: (*s_etat_processus).erreur_systeme = d_es_processus;
126:
127: pthread_mutex_lock(&((*s_argument_thread).mutex));
128: pthread_mutex_unlock(&((*s_argument_thread).mutex));
129:
130: (*s_argument_thread).thread_actif = d_faux;
131:
132: tid_final = -2;
133:
134: while((longueur_ecriture = write_atomic(s_etat_processus,
135: (*s_argument_thread).pipe_nombre_interruptions_attente[1],
136: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
137: {
138: if (longueur_ecriture == -1)
139: {
140: break;
141: }
142: }
143:
144: while((longueur_ecriture = write_atomic(s_etat_processus,
145: (*s_argument_thread).pipe_nombre_objets_attente[1],
146: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
147: {
148: if (longueur_ecriture == -1)
149: {
150: break;
151: }
152: }
153:
154: pthread_exit(NULL);
155: }
156:
157: insertion_thread(s_etat_processus, d_faux);
158:
159: // Envoi d'une donnée pour signaler le démarrage du thread au thread
160: // de surveillance.
161:
162: if (write_atomic(s_etat_processus,
163: (*s_argument_thread).pipe_nombre_objets_attente[1],
164: "-", sizeof(unsigned char)) != sizeof(unsigned char))
165: {
166: pthread_mutex_unlock(&((*s_etat_processus).mutex));
167: (*s_etat_processus).erreur_systeme = d_es_processus;
168:
169: pthread_mutex_lock(&((*s_argument_thread).mutex));
170: pthread_mutex_unlock(&((*s_argument_thread).mutex));
171:
172: (*s_argument_thread).thread_actif = d_faux;
173:
174: tid_final = -2;
175:
176: while((longueur_ecriture = write_atomic(s_etat_processus,
177: (*s_argument_thread).pipe_nombre_interruptions_attente[1],
178: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
179: {
180: if (longueur_ecriture == -1)
181: {
182: break;
183: }
184: }
185:
186: while((longueur_ecriture = write_atomic(s_etat_processus,
187: (*s_argument_thread).pipe_nombre_objets_attente[1],
188: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
189: {
190: if (longueur_ecriture == -1)
191: {
192: break;
193: }
194: }
195:
196: pthread_exit(NULL);
197: }
198:
199: if ((*s_etat_processus).evaluation_expression_compilee == 'N')
200: {
201: free((*s_etat_processus).instruction_courante);
202: (*s_etat_processus).instruction_courante = NULL;
203: }
204:
205: set = (*s_argument_thread).set;
206:
207: if (sigpending(&set) != 0)
208: {
209: (*s_etat_processus).erreur_systeme = d_es_processus;
210: }
211: else if (sigismember(&set, SIGSTART) == 0)
212: {
213: while(sigismember(&set, SIGSTART) == 0)
214: {
215: if (sigpending(&set) != 0)
216: {
217: (*s_etat_processus).erreur_systeme = d_es_processus;
218: }
219:
220: nanosleep(&attente, NULL);
221: }
222: }
223:
224: if ((*s_etat_processus).debug == d_vrai)
225: if (((*s_etat_processus).type_debug & d_debug_processus) != 0)
226: {
227: if ((*s_etat_processus).langue == 'F')
228: {
229: printf("[%d] Lancement du thread %llu\n", (int) getpid(),
230: (unsigned long long) pthread_self());
231: }
232: else
233: {
234: printf("[%d] Start thread %llu\n", (int) getpid(),
235: (unsigned long long) pthread_self());
236: }
237:
238: fflush(stdout);
239: }
240:
241: if (pthread_sigmask(SIG_SETMASK, &((*s_argument_thread).oldset), NULL) != 0)
242: {
243: (*s_etat_processus).erreur_systeme = d_es_processus;
244: }
245:
246: sigpending(&set);
247:
248: (*s_etat_processus).pid_erreur_processus_fils = getpid();
249:
250: // Évaluation de l'objet
251:
252: if ((*s_etat_processus).erreur_systeme == d_es)
253: {
254: if (evaluation(s_etat_processus, (*s_argument_thread).argument, 'E')
255: == d_erreur)
256: {
257: if (((*s_etat_processus).erreur_execution == d_ex) &&
258: ((*s_etat_processus).erreur_systeme == d_es))
259: {
260: (*s_etat_processus).erreur_execution =
261: d_ex_erreur_evaluation;
262: }
263: }
264: else
265: {
266: if (((*s_etat_processus).var_volatile_alarme == 0)
267: && ((*s_etat_processus).arret_depuis_abort == 0)
268: && ((*s_etat_processus).at_exit != NULL))
269: {
270: (*s_etat_processus).var_volatile_requete_arret = 0;
271:
272: if (evaluation(s_etat_processus, (*s_etat_processus).at_exit,
273: 'E') == d_erreur)
274: {
275: if (((*s_etat_processus).erreur_execution == d_ex) &&
276: ((*s_etat_processus).erreur_systeme == d_es))
277: {
278: (*s_etat_processus).erreur_execution =
279: d_ex_erreur_evaluation;
280: }
281: }
282: }
283: }
284:
285: if ((*s_argument_thread).destruction_objet == d_vrai)
286: {
287: liberation(s_etat_processus, (*s_argument_thread).argument);
288: }
289: }
290:
291: if ((*s_etat_processus).presence_fusible == d_vrai)
292: {
293: pthread_cancel((*s_etat_processus).thread_fusible);
294: }
295:
296: tid_final = -2;
297:
298: while((longueur_ecriture = write_atomic(s_etat_processus,
299: (*s_argument_thread).pipe_nombre_interruptions_attente[1],
300: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
301: {
302: if (longueur_ecriture == -1)
303: {
304: break;
305: }
306: }
307:
308: while((longueur_ecriture = write_atomic(s_etat_processus,
309: (*s_argument_thread).pipe_nombre_objets_attente[1],
310: &tid_final, sizeof(tid_final))) != sizeof(tid_final))
311: {
312: if (longueur_ecriture == -1)
313: {
314: break;
315: }
316: }
317:
318: if ((*s_etat_processus).var_volatile_processus_pere != 0)
319: {
320: // Racine des processus atteinte
321:
322: erreur = d_ex;
323:
324: while((longueur_ecriture = write_atomic(s_etat_processus,
325: (*s_argument_thread).pipe_erreurs[1], &erreur,
326: sizeof((*s_etat_processus).erreur_execution))) !=
327: sizeof((*s_etat_processus).erreur_execution))
328: {
329: if (longueur_ecriture == -1)
330: {
331: break;
332: }
333: }
334: }
335: else
336: {
337: while((longueur_ecriture = write_atomic(s_etat_processus,
338: (*s_argument_thread).pipe_erreurs[1],
339: &((*s_etat_processus).erreur_execution),
340: sizeof((*s_etat_processus).erreur_execution))) !=
341: sizeof((*s_etat_processus).erreur_execution))
342: {
343: if (longueur_ecriture == -1)
344: {
345: break;
346: }
347: }
348: }
349:
350: if ((*s_etat_processus).var_volatile_processus_pere != 0)
351: {
352: // Racine des processus atteinte
353:
354: erreur = d_es;
355:
356: while((longueur_ecriture = write_atomic(s_etat_processus,
357: (*s_argument_thread).pipe_erreurs[1], &erreur,
358: sizeof((*s_etat_processus).erreur_systeme))) !=
359: sizeof((*s_etat_processus).erreur_systeme))
360: {
361: if (longueur_ecriture == -1)
362: {
363: break;
364: }
365: }
366: }
367: else
368: {
369: while((longueur_ecriture = write_atomic(s_etat_processus,
370: (*s_argument_thread).pipe_erreurs[1],
371: &((*s_etat_processus).erreur_systeme),
372: sizeof((*s_etat_processus).erreur_systeme))) !=
373: sizeof((*s_etat_processus).erreur_systeme))
374: {
375: if (longueur_ecriture == -1)
376: {
377: break;
378: }
379: }
380: }
381:
382: if ((*s_etat_processus).pid_erreur_processus_fils == 0)
383: {
384: ppid = getpid();
385:
386: while((longueur_ecriture = write_atomic(s_etat_processus,
387: (*s_argument_thread).pipe_erreurs[1],
388: &ppid, sizeof(ppid))) != sizeof(ppid))
389: {
390: if (longueur_ecriture == -1)
391: {
392: break;
393: }
394: }
395: }
396: else
397: {
398: while((longueur_ecriture = write_atomic(s_etat_processus,
399: (*s_argument_thread).pipe_erreurs[1],
400: &((*s_etat_processus).pid_erreur_processus_fils),
401: sizeof((*s_etat_processus).pid_erreur_processus_fils))) !=
402: sizeof((*s_etat_processus).pid_erreur_processus_fils))
403: {
404: if (longueur_ecriture == -1)
405: {
406: break;
407: }
408: }
409: }
410:
411: close((*s_argument_thread).pipe_erreurs[1]);
412: close((*s_argument_thread).pipe_interruptions[1]);
413: close((*s_argument_thread).pipe_nombre_interruptions_attente[1]);
414: close((*s_argument_thread).pipe_objets[1]);
415: close((*s_argument_thread).pipe_nombre_objets_attente[1]);
416: close((*s_argument_thread).pipe_injections[0]);
417: close((*s_argument_thread).pipe_nombre_injections[0]);
418: close((*s_argument_thread).pipe_acquittement[0]);
419:
420: l_element_courant = (*s_etat_processus).s_fichiers;
421:
422: while(l_element_courant != NULL)
423: {
424: l_element_suivant = (*l_element_courant).suivant;
425:
426: if ((*((struct_descripteur_fichier *) (*l_element_courant)
427: .donnee)).pid == getpid())
428: {
429: fclose((*((struct_descripteur_fichier *)
430: (*l_element_courant).donnee)).descripteur_c);
431:
432: if ((*((struct_descripteur_fichier *)
433: (*l_element_courant).donnee)).type != 'C')
434: {
435: sqlite3_close((*((struct_descripteur_fichier *)
436: (*l_element_courant).donnee)).descripteur_sqlite);
437: }
438:
439: if ((*((struct_descripteur_fichier *) (*l_element_courant)
440: .donnee)).effacement == 'Y')
441: {
442: unlink((*((struct_descripteur_fichier *)
443: (*l_element_courant).donnee)).nom);
444: }
445: }
446:
447: free((*((struct_descripteur_fichier *) (*l_element_courant)
448: .donnee)).nom);
449: free((struct_descripteur_fichier *) (*l_element_courant).donnee);
450: free(l_element_courant);
451:
452: l_element_courant = l_element_suivant;
453: }
454:
455: pthread_mutex_lock(&((*s_etat_processus).mutex));
456:
457: l_element_courant = (struct_liste_chainee *)
458: (*s_etat_processus).l_base_pile_processus;
459:
460: while(l_element_courant != NULL)
461: {
462: if ((*(*((struct_processus_fils *) (*(*l_element_courant).donnee)
463: .objet)).thread).processus_detache == d_vrai)
464: {
465: if ((*s_etat_processus).debug == d_vrai)
466: {
467: if (((*s_etat_processus).type_debug & d_debug_processus) != 0)
468: {
469: if ((*s_etat_processus).langue == 'F')
470: {
471: printf("[%d] Signalement pour arrêt du processus %d\n",
472: (int) getpid(),
473: (int) (*(*((struct_processus_fils *)
474: (*(*l_element_courant).donnee).objet)).thread)
475: .pid);
476: }
477: else
478: {
479: printf("[%d] Send stop signal to process %d\n",
480: (int) getpid(),
481: (int) (*(*((struct_processus_fils *)
482: (*(*l_element_courant).donnee).objet)).thread)
483: .pid);
484: }
485: }
486: }
487:
488: if ((*s_etat_processus).var_volatile_alarme != 0)
489: {
490: kill((*(*((struct_processus_fils *) (*(*l_element_courant)
491: .donnee).objet)).thread).pid, SIGURG);
492: }
493: else
494: {
495: if ((*s_etat_processus).arret_depuis_abort == -1)
496: {
497: kill((*(*((struct_processus_fils *) (*(*l_element_courant)
498: .donnee).objet)).thread).pid, SIGFABORT);
499: }
500: else
501: {
502: kill((*(*((struct_processus_fils *) (*(*l_element_courant)
503: .donnee).objet)).thread).pid, SIGFSTOP);
504: }
505: }
506: }
507: else
508: {
509: if ((*s_etat_processus).debug == d_vrai)
510: {
511: if (((*s_etat_processus).type_debug & d_debug_processus) != 0)
512: {
513: if ((*s_etat_processus).langue == 'F')
514: {
515: printf("[%d] Signalement pour arrêt du thread %llu\n",
516: (int) getpid(), (unsigned long long)
517: (*(*((struct_processus_fils *)
518: (*(*l_element_courant).donnee).objet)).thread)
519: .tid);
520: }
521: else
522: {
523: printf("[%d] Send stop signal to thread %llu\n",
524: (int) getpid(), (unsigned long long)
525: (*(*((struct_processus_fils *)
526: (*(*l_element_courant).donnee).objet)).thread)
527: .tid);
528: }
529: }
530: }
531:
532: if ((*s_etat_processus).var_volatile_alarme != 0)
533: {
534: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
535: (*(*l_element_courant).donnee).objet)).thread).mutex))
536: != 0)
537: {
538: pthread_mutex_unlock(&((*s_etat_processus).mutex));
539: (*s_etat_processus).erreur_systeme = d_es_processus;
540:
541: pthread_mutex_lock(&((*s_argument_thread).mutex));
542: pthread_mutex_unlock(&((*s_argument_thread).mutex));
543:
544: (*s_argument_thread).thread_actif = d_faux;
545:
546: pthread_exit(NULL);
547: }
548:
549: if ((*(*((struct_processus_fils *)
550: (*(*l_element_courant).donnee).objet)).thread)
551: .thread_actif == d_vrai)
552: {
553: pthread_kill((*(*((struct_processus_fils *)
554: (*(*l_element_courant).donnee).objet)).thread).tid,
555: SIGURG);
556: }
557:
558: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
559: (*(*l_element_courant).donnee).objet)).thread)
560: .mutex)) != 0)
561: {
562: pthread_mutex_unlock(&((*s_etat_processus).mutex));
563: (*s_etat_processus).erreur_systeme = d_es_processus;
564:
565: pthread_mutex_lock(&((*s_argument_thread).mutex));
566: pthread_mutex_unlock(&((*s_argument_thread).mutex));
567:
568: (*s_argument_thread).thread_actif = d_faux;
569:
570: pthread_exit(NULL);
571: }
572: }
573: else
574: {
575: if (pthread_mutex_lock(&((*(*((struct_processus_fils *)
576: (*(*l_element_courant).donnee).objet)).thread).mutex))
577: != 0)
578: {
579: pthread_mutex_unlock(&((*s_etat_processus).mutex));
580: (*s_etat_processus).erreur_systeme = d_es_processus;
581:
582: pthread_mutex_lock(&((*s_argument_thread).mutex));
583: pthread_mutex_unlock(&((*s_argument_thread).mutex));
584:
585: (*s_argument_thread).thread_actif = d_faux;
586:
587: pthread_exit(NULL);
588: }
589:
590: if ((*(*((struct_processus_fils *)
591: (*(*l_element_courant).donnee).objet)).thread)
592: .thread_actif == d_vrai)
593: {
594: if ((*s_etat_processus).arret_depuis_abort == -1)
595: {
596: pthread_kill((*(*((struct_processus_fils *)
597: (*(*l_element_courant).donnee).objet)).thread)
598: .tid, SIGFABORT);
599: }
600: else
601: {
602: pthread_kill((*(*((struct_processus_fils *)
603: (*(*l_element_courant).donnee).objet)).thread)
604: .tid, SIGFSTOP);
605: }
606: }
607:
608: if (pthread_mutex_unlock(&((*(*((struct_processus_fils *)
609: (*(*l_element_courant).donnee).objet)).thread).mutex))
610: != 0)
611: {
612: pthread_mutex_unlock(&((*s_etat_processus).mutex));
613: (*s_etat_processus).erreur_systeme = d_es_processus;
614:
615: pthread_mutex_lock(&((*s_argument_thread).mutex));
616: pthread_mutex_unlock(&((*s_argument_thread).mutex));
617:
618: (*s_argument_thread).thread_actif = d_faux;
619:
620: pthread_exit(NULL);
621: }
622: }
623: }
624:
625: l_element_courant = (*l_element_courant).suivant;
626: }
627:
628: /*
629: * Attente de la fin de tous les processus fils
630: */
631:
632: for(i = 0; i < d_NOMBRE_INTERRUPTIONS;
633: (*s_etat_processus).masque_interruptions[i++] = 'I');
634:
635: attente.tv_sec = 0;
636: attente.tv_nsec = GRANULARITE_us * 1000;
637:
638: while((*s_etat_processus).l_base_pile_processus != NULL)
639: {
640: status = 0;
641:
642: l_element_courant = (struct_liste_chainee *)
643: (*s_etat_processus).l_base_pile_processus;
644:
645: registre_stop = (*s_etat_processus)
646: .var_volatile_traitement_retarde_stop;
647: (*s_etat_processus).var_volatile_traitement_retarde_stop = 1;
648:
649: for(i = 0; i < (unsigned long) (*(*((struct_processus_fils *)
650: (*(*l_element_courant).donnee).objet)).thread)
651: .nombre_objets_dans_pipe; i++)
652: {
653: if ((s_objet_temporaire = lecture_pipe(s_etat_processus,
654: (*(*((struct_processus_fils *) (*(*l_element_courant)
655: .donnee).objet)).thread).pipe_objets[0])) != NULL)
656: {
657: liberation(s_etat_processus, s_objet_temporaire);
658:
659: (*(*((struct_processus_fils *) (*(*l_element_courant)
660: .donnee).objet)).thread).nombre_objets_dans_pipe--;
661:
662: action.sa_handler = SIG_IGN;
663: action.sa_flags = SA_ONSTACK;
664:
665: if (sigaction(SIGPIPE, &action, ®istre) != 0)
666: {
667: pthread_mutex_unlock(&((*s_etat_processus).mutex));
668:
669: if (registre_stop == 0)
670: {
671: if ((*s_etat_processus)
672: .var_volatile_traitement_retarde_stop
673: == -1)
674: {
675: (*s_etat_processus)
676: .var_volatile_requete_arret = -1;
677: }
678:
679: (*s_etat_processus)
680: .var_volatile_traitement_retarde_stop =
681: registre_stop;
682: }
683:
684: (*s_etat_processus).erreur_systeme = d_es_signal;
685: exit(EXIT_FAILURE);
686: }
687:
688: while((longueur_ecriture = write_atomic(
689: s_etat_processus, (*(*((struct_processus_fils *)
690: (*(*l_element_courant).donnee).objet)).thread)
691: .pipe_nombre_injections[1], "+",
692: sizeof(unsigned char))) !=
693: sizeof(unsigned char))
694: {
695: if (longueur_ecriture == -1)
696: {
697: // Le processus n'existe plus.
698: break;
699: }
700: }
701:
702: if (registre_stop == 0)
703: {
704: if ((*s_etat_processus)
705: .var_volatile_traitement_retarde_stop == -1)
706: {
707: (*s_etat_processus).var_volatile_requete_arret
708: = -1;
709: }
710:
711: (*s_etat_processus)
712: .var_volatile_traitement_retarde_stop =
713: registre_stop;
714: }
715:
716: if (sigaction(SIGPIPE, ®istre, NULL) != 0)
717: {
718: pthread_mutex_unlock(&((*s_etat_processus).mutex));
719:
720: (*s_etat_processus).erreur_systeme = d_es_signal;
721: exit(EXIT_FAILURE);
722: }
723: }
724: }
725:
726: if ((*(*((struct_processus_fils *) (*(*l_element_courant)
727: .donnee).objet)).thread).processus_detache == d_vrai)
728: {
729: if (waitpid((*(*((struct_processus_fils *)
730: (*(*l_element_courant).donnee).objet)).thread).pid,
731: &status, WNOHANG) < 0)
732: {
733: }
734: }
735:
736: pthread_mutex_unlock(&((*s_etat_processus).mutex));
737:
738: if ((*s_etat_processus).nombre_interruptions_non_affectees != 0)
739: {
740: affectation_interruptions_logicielles(s_etat_processus);
741: }
742:
743: nanosleep(&attente, NULL);
744: pthread_mutex_lock(&((*s_etat_processus).mutex));
745: }
746:
747: pthread_mutex_unlock(&((*s_etat_processus).mutex));
748:
749: l_element_courant = (*s_etat_processus).s_sockets;
750:
751: while(l_element_courant != NULL)
752: {
753: l_element_suivant = (*l_element_courant).suivant;
754:
755: /*
756: * Fermeture des sockets créées dans le processus courant.
757: */
758:
759: if (((*((struct_socket *) (*(*l_element_courant).donnee).objet))
760: .pid == getpid()) && (pthread_equal((*((struct_socket *)
761: (*(*l_element_courant).donnee).objet)).tid, pthread_self())
762: != 0))
763: {
764: if ((*((struct_socket *) (*(*l_element_courant).donnee).objet))
765: .socket_connectee == d_vrai)
766: {
767: shutdown((*((struct_socket *) (*(*l_element_courant).donnee)
768: .objet)).socket, SHUT_RDWR);
769: }
770:
771: close((*((struct_socket *) (*(*l_element_courant).donnee).objet))
772: .socket);
773:
774: if ((*((struct_socket *) (*(*l_element_courant).donnee).objet))
775: .effacement == 'Y')
776: {
777: unlink((*((struct_socket *) (*(*l_element_courant).donnee)
778: .objet)).adresse);
779: }
780: }
781:
782: liberation(s_etat_processus, (*((struct_liste_chainee *)
783: l_element_courant)).donnee);
784: free(l_element_courant);
785:
786: l_element_courant = l_element_suivant;
787: }
788:
789: l_element_courant = (*s_etat_processus).s_connecteurs_sql;
790:
791: while(l_element_courant != NULL)
792: {
793: l_element_suivant = (*l_element_courant).suivant;
794:
795: /*
796: * Fermeture des connecteurs créés dans le processus courant.
797: */
798:
799: if (((*((struct_socket *) (*(*l_element_courant).donnee).objet))
800: .pid == getpid()) && (pthread_equal((*((struct_socket *)
801: (*(*l_element_courant).donnee).objet)).tid, pthread_self())
802: != 0))
803: {
804: sqlclose((*l_element_courant).donnee);
805: }
806:
807: liberation(s_etat_processus, (*((struct_liste_chainee *)
808: l_element_courant)).donnee);
809: free(l_element_courant);
810:
811: l_element_courant = l_element_suivant;
812: }
813:
814: if ((((*s_etat_processus).erreur_execution != d_ex) ||
815: ((*s_etat_processus).exception != d_ep) ||
816: ((*s_etat_processus).erreur_systeme != d_es)) &&
817: ((*s_etat_processus).var_volatile_traitement_sigint == 0))
818: {
819: printf("%s [%d]\n", message =
820: messages(s_etat_processus), (int) getpid());
821: free(message);
822:
823: if ((*s_etat_processus).core == d_vrai)
824: {
825: printf("\n");
826:
827: if ((*s_etat_processus).langue == 'F')
828: {
829: printf("+++Information : Génération du fichier rpl-core "
830: "[%d]\n", (int) getpid());
831: }
832: else
833: {
834: printf("+++Information : Writing rpl-core file [%d]\n",
835: (int) getpid());
836: }
837:
838: rplcore(s_etat_processus);
839:
840: if ((*s_etat_processus).langue == 'F')
841: {
842: printf("+++Information : Processus tracé [%d]\n",
843: (int) getpid());
844: }
845: else
846: {
847: printf("+++Information : Done [%d]\n", (int) getpid());
848: }
849:
850: printf("\n");
851: fflush(stdout);
852: }
853: }
854:
855: if ((*s_etat_processus).entree_standard != NULL)
856: {
857: pclose((*s_etat_processus).entree_standard);
858: (*s_etat_processus).entree_standard = NULL;
859: }
860:
861: if ((*s_etat_processus).fichiers_graphiques != NULL)
862: {
863: instruction_cllcd(s_etat_processus);
864: }
865:
866: liberation(s_etat_processus, (*s_etat_processus).indep);
867: liberation(s_etat_processus, (*s_etat_processus).depend);
868:
869: free((*s_etat_processus).label_x);
870: free((*s_etat_processus).label_y);
871: free((*s_etat_processus).label_z);
872: free((*s_etat_processus).titre);
873: free((*s_etat_processus).legende);
874:
875: liberation(s_etat_processus,
876: (*s_etat_processus).parametres_courbes_de_niveau);
877:
878: if ((*s_etat_processus).instruction_derniere_erreur != NULL)
879: {
880: free((*s_etat_processus).instruction_derniere_erreur);
881: (*s_etat_processus).instruction_derniere_erreur = NULL;
882: }
883:
884: for(i = 0; i < (*s_etat_processus).nombre_variables; i++)
885: {
886: // Les définitions ne sont pas libérées parce qu'elles sont partagées
887: // avec le thread père.
888:
889: if ((*s_etat_processus).s_liste_variables[i].niveau != 0)
890: {
891: liberation(s_etat_processus,
892: (*s_etat_processus).s_liste_variables[i].objet);
893: }
894:
895: free((*s_etat_processus).s_liste_variables[i].nom);
896: }
897:
898: free((*s_etat_processus).s_liste_variables);
899:
900: for(i = 0; i < (*s_etat_processus).nombre_variables_statiques; i++)
901: {
902: liberation(s_etat_processus,
903: (*s_etat_processus).s_liste_variables_statiques[i].objet);
904: free((*s_etat_processus).s_liste_variables_statiques[i].nom);
905: }
906:
907: free((*s_etat_processus).s_liste_variables_statiques);
908:
909: l_element_courant = (*s_etat_processus).l_base_pile;
910: while(l_element_courant != NULL)
911: {
912: l_element_suivant = (*l_element_courant).suivant;
913:
914: liberation(s_etat_processus, (*l_element_courant).donnee);
915: free(l_element_courant);
916:
917: l_element_courant = l_element_suivant;
918: }
919:
920: l_element_courant = (*s_etat_processus).l_base_pile_last;
921: while(l_element_courant != NULL)
922: {
923: l_element_suivant = (*l_element_courant).suivant;
924:
925: liberation(s_etat_processus, (*l_element_courant).donnee);
926: free(l_element_courant);
927:
928: l_element_courant = l_element_suivant;
929: }
930:
931: l_element_courant = (*s_etat_processus).l_base_pile_contextes;
932: while(l_element_courant != NULL)
933: {
934: l_element_suivant = (*l_element_courant).suivant;
935:
936: liberation(s_etat_processus, (*l_element_courant).donnee);
937: free(l_element_courant);
938:
939: l_element_courant = l_element_suivant;
940: }
941:
942: l_element_courant = (*s_etat_processus).l_base_pile_taille_contextes;
943: while(l_element_courant != NULL)
944: {
945: l_element_suivant = (*l_element_courant).suivant;
946:
947: liberation(s_etat_processus, (*l_element_courant).donnee);
948: free(l_element_courant);
949:
950: l_element_courant = l_element_suivant;
951: }
952:
953: l_element_courant = (struct_liste_chainee *)
954: (*s_etat_processus).l_base_pile_systeme;
955: while(l_element_courant != NULL)
956: {
957: l_element_suivant = (struct_liste_chainee *)
958: (*((struct_liste_pile_systeme *)
959: l_element_courant)).suivant;
960:
961: liberation(s_etat_processus, (*((struct_liste_pile_systeme *)
962: l_element_courant)).indice_boucle);
963: liberation(s_etat_processus, (*((struct_liste_pile_systeme *)
964: l_element_courant)).limite_indice_boucle);
965: liberation(s_etat_processus, (*((struct_liste_pile_systeme *)
966: l_element_courant)).objet_de_test);
967:
968: if ((*((struct_liste_pile_systeme *)
969: l_element_courant)).nom_variable != NULL)
970: {
971: free((*((struct_liste_pile_systeme *)
972: l_element_courant)).nom_variable);
973: }
974:
975: free((struct_liste_pile_systeme *) l_element_courant);
976:
977: l_element_courant = l_element_suivant;
978: }
979:
980: l_element_courant = (*s_etat_processus).s_bibliotheques;
981:
982: while(l_element_courant != NULL)
983: {
984: l_element_suivant = (*l_element_courant).suivant;
985:
986: free((*((struct_bibliotheque *) (*l_element_courant).donnee)).nom);
987:
988: if (((*((struct_bibliotheque *) (*l_element_courant).donnee)).pid
989: == getpid()) && (pthread_equal((*((struct_bibliotheque *)
990: (*l_element_courant).donnee)).tid, pthread_self()) != 0))
991: {
992: dlclose((*((struct_bibliotheque *) (*l_element_courant).donnee))
993: .descripteur);
994: }
995:
996: free((*l_element_courant).donnee);
997: free(l_element_courant);
998:
999: l_element_courant = l_element_suivant;
1000: }
1001:
1002: for(i = 0; i < (*s_etat_processus).nombre_instructions_externes; i++)
1003: {
1004: free((*s_etat_processus).s_instructions_externes[i].nom);
1005: free((*s_etat_processus).s_instructions_externes[i]
1006: .nom_bibliotheque);
1007: }
1008:
1009: if ((*s_etat_processus).nombre_instructions_externes != 0)
1010: {
1011: free((*s_etat_processus).s_instructions_externes);
1012: }
1013:
1014: if ((*s_etat_processus).debug == d_vrai)
1015: if (((*s_etat_processus).type_debug & d_debug_processus) != 0)
1016: {
1017: if ((*s_etat_processus).langue == 'F')
1018: {
1019: printf("[%d] Fin du thread %llu\n", (int) getpid(),
1020: (unsigned long long) pthread_self());
1021: }
1022: else
1023: {
1024: printf("[%d] End of thread %llu\n", (int) getpid(),
1025: (unsigned long long) pthread_self());
1026: }
1027:
1028: fflush(stdout);
1029: }
1030:
1031: liberation(s_etat_processus, (*s_argument_thread).argument);
1032: liberation(s_etat_processus, (*s_etat_processus).at_exit);
1033:
1034: for(i = 0; i < d_NOMBRE_INTERRUPTIONS; i++)
1035: {
1036: liberation(s_etat_processus,
1037: (*s_etat_processus).corps_interruptions[i]);
1038:
1039: l_element_courant = (*s_etat_processus)
1040: .pile_origine_interruptions[i];
1041:
1042: while(l_element_courant != NULL)
1043: {
1044: l_element_suivant = (*l_element_courant).suivant;
1045:
1046: liberation(s_etat_processus, (*l_element_courant).donnee);
1047: free(l_element_courant);
1048:
1049: l_element_courant = l_element_suivant;
1050: }
1051: }
1052:
1053: l_element_courant = (struct_liste_chainee *) (*s_etat_processus).s_marques;
1054:
1055: while(l_element_courant != NULL)
1056: {
1057: free((*((struct_marque *) l_element_courant)).label);
1058: free((*((struct_marque *) l_element_courant)).position);
1059: l_element_suivant = (struct_liste_chainee *)
1060: (*((struct_marque *) l_element_courant)).suivant;
1061: free((struct_marque *) l_element_courant);
1062: l_element_courant = l_element_suivant;
1063: }
1064:
1065: if ((*s_etat_processus).generateur_aleatoire != NULL)
1066: {
1067: liberation_generateur_aleatoire(s_etat_processus);
1068: }
1069:
1070: if ((*s_etat_processus).profilage == d_vrai)
1071: {
1072: ecriture_profil(s_etat_processus);
1073: liberation_profil(s_etat_processus);
1074: }
1075:
1076: liberation_allocateur(s_etat_processus);
1077:
1078: retrait_thread(s_etat_processus);
1079: pthread_mutex_destroy(&((*s_etat_processus).mutex));
1080:
1081: free((*s_etat_processus).localisation);
1082: free(s_etat_processus);
1083:
1084: pthread_mutex_lock(&((*s_argument_thread).mutex));
1085: pthread_mutex_unlock(&((*s_argument_thread).mutex));
1086:
1087: (*s_argument_thread).thread_actif = d_faux;
1088: pthread_exit(NULL);
1089: }
1090:
1091: // vim: ts=4
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