version 1.162, 2015/10/23 09:58:50
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version 1.177, 2016/04/01 11:26:21
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/* |
/* |
================================================================================ |
================================================================================ |
RPL/2 (R) version 4.1.23 |
RPL/2 (R) version 4.1.25 |
Copyright (C) 1989-2015 Dr. BERTRAND Joël |
Copyright (C) 1989-2016 Dr. BERTRAND Joël |
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This file is part of RPL/2. |
This file is part of RPL/2. |
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Line 70 thread_surveillance_signaux(void *argume
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Line 70 thread_surveillance_signaux(void *argume
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// nécessaires dans la queue des signaux et incrémentent le sémaphore. |
// nécessaires dans la queue des signaux et incrémentent le sémaphore. |
// Le sémaphore est décrémenté lorsque le signal est effectivement traité. |
// Le sémaphore est décrémenté lorsque le signal est effectivement traité. |
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int ios; |
int nombre_signaux_envoyes; |
int nombre_signaux_envoyes; |
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struct_processus *s_etat_processus; |
struct_processus *s_etat_processus; |
Line 109 thread_surveillance_signaux(void *argume
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Line 110 thread_surveillance_signaux(void *argume
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sem_post(semaphore_signalisation); |
sem_post(semaphore_signalisation); |
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nombre_signaux_envoyes = 0; |
nombre_signaux_envoyes = 0; |
sched_yield(); |
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// Dans un premier temps, on verrouille la queue des signaux |
// Dans un premier temps, on verrouille la queue des signaux |
// affectée au processus courant pour vérifier s'il y a quelque |
// affectée au processus courant pour vérifier s'il y a quelque |
// chose à traiter. |
// chose à traiter. |
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sem_wait(semaphore_queue_signaux); |
while((ios = sem_wait(semaphore_queue_signaux)) != 0) |
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{ |
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if (errno != EINTR) |
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{ |
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(*s_etat_processus).erreur_systeme = d_es_processus; |
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} |
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} |
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if ((*s_queue_signaux).pointeur_lecture != |
if ((*s_queue_signaux).pointeur_lecture != |
(*s_queue_signaux).pointeur_ecriture) |
(*s_queue_signaux).pointeur_ecriture) |
Line 128 thread_surveillance_signaux(void *argume
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Line 134 thread_surveillance_signaux(void *argume
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nombre_signaux_envoyes++; |
nombre_signaux_envoyes++; |
kill(getpid(), SIGALRM); |
kill(getpid(), SIGALRM); |
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sched_yield(); |
} |
} |
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sem_post(semaphore_queue_signaux); |
sem_post(semaphore_queue_signaux); |
Line 154 thread_surveillance_signaux(void *argume
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Line 161 thread_surveillance_signaux(void *argume
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if ((*(*((struct_thread *) (*l_element_courant).donnee)) |
if ((*(*((struct_thread *) (*l_element_courant).donnee)) |
.s_etat_processus).pointeur_signal_ecriture != |
.s_etat_processus).pointeur_signal_ecriture != |
(*(*((struct_thread *) (*l_element_courant) |
(*(*((struct_thread *) (*l_element_courant) |
.donnee)).s_etat_processus) |
.donnee)).s_etat_processus).pointeur_signal_lecture) |
.pointeur_signal_lecture) |
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{ |
{ |
nombre_signaux_envoyes++; |
nombre_signaux_envoyes++; |
pthread_kill((*((struct_thread *) |
pthread_kill((*((struct_thread *) |
(*l_element_courant).donnee)).tid, SIGALRM); |
(*l_element_courant).donnee)).tid, SIGALRM); |
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sched_yield(); |
} |
} |
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pthread_mutex_unlock(&((*(*((struct_thread *) |
pthread_mutex_unlock(&((*(*((struct_thread *) |
Line 1515 lancement_thread_signaux(struct_processu
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Line 1522 lancement_thread_signaux(struct_processu
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{ |
{ |
pthread_attr_t attributs; |
pthread_attr_t attributs; |
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void *argument; |
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if (pipe((*s_etat_processus).pipe_signaux) != 0) |
if (pipe((*s_etat_processus).pipe_signaux) != 0) |
{ |
{ |
(*s_etat_processus).erreur_systeme = d_es_processus; |
(*s_etat_processus).erreur_systeme = d_es_processus; |
Line 1537 lancement_thread_signaux(struct_processu
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Line 1542 lancement_thread_signaux(struct_processu
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return(d_erreur); |
return(d_erreur); |
} |
} |
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argument = (*s_etat_processus).pipe_signaux; |
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if (pthread_create(&((*s_etat_processus).thread_signaux), &attributs, |
if (pthread_create(&((*s_etat_processus).thread_signaux), &attributs, |
thread_signaux, argument) != 0) |
thread_signaux, s_etat_processus) != 0) |
{ |
{ |
(*s_etat_processus).erreur_systeme = d_es_processus; |
(*s_etat_processus).erreur_systeme = d_es_processus; |
return(d_erreur); |
return(d_erreur); |
Line 1559 arret_thread_signaux(struct_processus *s
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Line 1562 arret_thread_signaux(struct_processus *s
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do |
do |
{ |
{ |
n = write((*s_etat_processus).pipe_signaux[1], &signal, sizeof(signal)); |
n = write_atomic(s_etat_processus, (*s_etat_processus).pipe_signaux[1], |
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&signal, sizeof(signal)); |
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if (n < 0) |
if (n < 0) |
{ |
{ |
Line 1584 thread_signaux(void *argument)
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Line 1588 thread_signaux(void *argument)
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struct pollfd fds; |
struct pollfd fds; |
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struct_processus *s_etat_processus; |
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unsigned char signal; |
unsigned char signal; |
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pipe = (int *) argument; |
s_etat_processus = (struct_processus *) argument; |
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pipe = (*s_etat_processus).pipe_signaux; |
fds.fd = pipe[0]; |
fds.fd = pipe[0]; |
fds.events = POLLIN; |
fds.events = POLLIN; |
fds.revents = 0; |
fds.revents = 0; |
Line 1601 thread_signaux(void *argument)
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Line 1608 thread_signaux(void *argument)
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pthread_exit(NULL); |
pthread_exit(NULL); |
} |
} |
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# pragma GCC diagnostic push |
if (read_atomic(s_etat_processus, fds.fd, &signal, 1) != 1) |
# pragma GCC diagnostic ignored "-Wunused-result" |
{ |
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pthread_exit(NULL); |
read(fds.fd, &signal, 1); |
} |
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# pragma GCC diagnostic pop |
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if (signal != (0xFF & rpl_sigmax)) |
if (signal != (0xFF & rpl_sigmax)) |
{ |
{ |
envoi_signal_processus(getpid(), signal); |
envoi_signal_processus(getpid(), signal, d_faux); |
// Un signal SIGALRM est envoyé par le thread de surveillance |
// Un signal SIGALRM est envoyé par le thread de surveillance |
// des signaux jusqu'à ce que les signaux soient tous traités. |
// des signaux jusqu'à ce que les signaux soient tous traités. |
} |
} |
Line 1619 thread_signaux(void *argument)
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Line 1624 thread_signaux(void *argument)
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pthread_exit(NULL); |
pthread_exit(NULL); |
} |
} |
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static inline void |
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_write(int fd, const void *buf, size_t count) |
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{ |
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ssize_t ios; |
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while((ios = write(fd, buf, count)) == -1) |
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{ |
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if (errno != EINTR) |
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{ |
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break; |
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} |
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} |
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return; |
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} |
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// Récupération des signaux |
// Récupération des signaux |
// - SIGINT (arrêt au clavier) |
// - SIGINT (arrêt au clavier) |
// - SIGTERM (signal d'arrêt en provenance du système) |
// - SIGTERM (signal d'arrêt en provenance du système) |
Line 1630 interruption1(int signal)
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Line 1653 interruption1(int signal)
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test_signal(signal); |
test_signal(signal); |
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# pragma GCC diagnostic push |
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# pragma GCC diagnostic ignored "-Wunused-result" |
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switch(signal) |
switch(signal) |
{ |
{ |
case SIGINT: |
case SIGINT: |
signal_tronque = (unsigned char) (rpl_sigint & 0xFF); |
signal_tronque = (unsigned char) (rpl_sigint & 0xFF); |
write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
break; |
break; |
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case SIGTERM: |
case SIGTERM: |
signal_tronque = (unsigned char) (rpl_sigterm & 0xFF); |
signal_tronque = (unsigned char) (rpl_sigterm & 0xFF); |
write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
break; |
break; |
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case SIGUSR1: |
case SIGUSR1: |
signal_tronque = (unsigned char) (rpl_sigalrm & 0xFF); |
signal_tronque = (unsigned char) (rpl_sigalrm & 0xFF); |
write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
break; |
break; |
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default: |
default: |
Line 1655 interruption1(int signal)
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Line 1675 interruption1(int signal)
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break; |
break; |
} |
} |
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# pragma GCC diagnostic pop |
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return; |
return; |
} |
} |
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Line 1678 interruption2(int signal)
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Line 1696 interruption2(int signal)
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test_signal(signal); |
test_signal(signal); |
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signal_tronque = (unsigned char) (rpl_sigtstp & 0xFF); |
signal_tronque = (unsigned char) (rpl_sigtstp & 0xFF); |
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_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
# pragma GCC diagnostic push |
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# pragma GCC diagnostic ignored "-Wunused-result" |
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write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
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# pragma GCC diagnostic pop |
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return; |
return; |
} |
} |
Line 1736 interruption4(int signal)
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Line 1748 interruption4(int signal)
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test_signal(signal); |
test_signal(signal); |
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signal_tronque = (unsigned char) (rpl_sighup & 0xFF); |
signal_tronque = (unsigned char) (rpl_sighup & 0xFF); |
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_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
# pragma GCC diagnostic push |
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# pragma GCC diagnostic ignored "-Wunused-result" |
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write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
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# pragma GCC diagnostic pop |
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return; |
return; |
} |
} |
Line 1765 interruption5(int signal)
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Line 1771 interruption5(int signal)
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if (pid_processus_pere == getpid()) |
if (pid_processus_pere == getpid()) |
{ |
{ |
signal_tronque = (unsigned char) (rpl_sigalrm & 0xFF); |
signal_tronque = (unsigned char) (rpl_sigalrm & 0xFF); |
write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
_write(pipe_signaux, &signal_tronque, sizeof(signal_tronque)); |
} |
} |
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write(STDERR_FILENO, message, strlen(message)); |
write(STDERR_FILENO, message, strlen(message)); |
Line 1799 signal_alrm(struct_processus *s_etat_pro
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Line 1805 signal_alrm(struct_processus *s_etat_pro
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{ |
{ |
// On n'est pas dans le processus père, on remonte le signal. |
// On n'est pas dans le processus père, on remonte le signal. |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
rpl_sigalrm); |
rpl_sigalrm, d_faux); |
} |
} |
else |
else |
{ |
{ |
Line 1844 signal_term(struct_processus *s_etat_pro
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Line 1850 signal_term(struct_processus *s_etat_pro
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if ((*s_etat_processus).pid_processus_pere != getpid()) |
if ((*s_etat_processus).pid_processus_pere != getpid()) |
{ |
{ |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
rpl_sigterm); |
rpl_sigterm, d_faux); |
} |
} |
else |
else |
{ |
{ |
Line 1898 signal_int(struct_processus *s_etat_proc
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Line 1904 signal_int(struct_processus *s_etat_proc
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if ((*s_etat_processus).pid_processus_pere != getpid()) |
if ((*s_etat_processus).pid_processus_pere != getpid()) |
{ |
{ |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
rpl_sigint); |
rpl_sigint, d_faux); |
} |
} |
else |
else |
{ |
{ |
Line 1969 signal_tstp(struct_processus *s_etat_pro
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Line 1975 signal_tstp(struct_processus *s_etat_pro
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if ((*s_etat_processus).var_volatile_processus_pere == 0) |
if ((*s_etat_processus).var_volatile_processus_pere == 0) |
{ |
{ |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
envoi_signal_processus((*s_etat_processus).pid_processus_pere, |
rpl_sigtstp); |
rpl_sigtstp, d_faux); |
} |
} |
else |
else |
{ |
{ |
Line 2350 traitement_exceptions_gsl(const char *re
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Line 2356 traitement_exceptions_gsl(const char *re
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int line, int gsl_errno) |
int line, int gsl_errno) |
{ |
{ |
code_erreur_gsl = gsl_errno; |
code_erreur_gsl = gsl_errno; |
envoi_signal_processus(getpid(), rpl_sigexcept); |
envoi_signal_processus(getpid(), rpl_sigexcept, d_faux); |
return; |
return; |
} |
} |
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Line 2474 scrutation_interruptions(struct_processu
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Line 2480 scrutation_interruptions(struct_processu
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if (msync(s_queue_signaux, sizeof(s_queue_signaux), |
if (msync(s_queue_signaux, sizeof(s_queue_signaux), |
MS_ASYNC | MS_INVALIDATE) != 0) |
MS_ASYNC | MS_INVALIDATE) != 0) |
{ |
{ |
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sem_post(semaphore_queue_signaux); |
(*s_etat_processus).erreur_systeme = d_es_processus; |
(*s_etat_processus).erreur_systeme = d_es_processus; |
return; |
return; |
} |
} |
Line 2487 scrutation_interruptions(struct_processu
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Line 2494 scrutation_interruptions(struct_processu
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return; |
return; |
} |
} |
} |
} |
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if ((*s_queue_signaux).requete_arret == d_vrai) |
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{ |
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break; |
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} |
} |
} |
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sem_post(semaphore_queue_signaux); |
sem_post(semaphore_queue_signaux); |
Line 2494 scrutation_interruptions(struct_processu
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Line 2506 scrutation_interruptions(struct_processu
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// Interruptions qui arrivent depuis le groupe courant de threads. |
// Interruptions qui arrivent depuis le groupe courant de threads. |
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if (pthread_mutex_trylock(&((*s_etat_processus).mutex_signaux)) == 0) |
if (pthread_mutex_trylock(&mutex_liste_threads) == 0) |
{ |
{ |
while((*s_etat_processus).pointeur_signal_lecture != |
if (pthread_mutex_trylock(&((*s_etat_processus).mutex_signaux)) == 0) |
(*s_etat_processus).pointeur_signal_ecriture) |
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{ |
{ |
// Il y a un signal dans la queue du thread courant. On le traite. |
while((*s_etat_processus).pointeur_signal_lecture != |
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(*s_etat_processus).pointeur_signal_ecriture) |
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{ |
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// Il y a un signal dans la queue du thread courant. |
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// On le traite. |
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envoi_interruptions(s_etat_processus, |
envoi_interruptions(s_etat_processus, |
(*s_etat_processus).signaux_en_queue |
(*s_etat_processus).signaux_en_queue |
[(*s_etat_processus).pointeur_signal_lecture], |
[(*s_etat_processus).pointeur_signal_lecture], |
getpid()); |
getpid()); |
(*s_etat_processus).pointeur_signal_lecture = |
(*s_etat_processus).pointeur_signal_lecture = |
((*s_etat_processus).pointeur_signal_lecture + 1) |
((*s_etat_processus).pointeur_signal_lecture + 1) |
% LONGUEUR_QUEUE_SIGNAUX; |
% LONGUEUR_QUEUE_SIGNAUX; |
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while(sem_wait(semaphore_signalisation) != 0) |
while(sem_wait(semaphore_signalisation) != 0) |
{ |
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if (errno != EINTR) |
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{ |
{ |
(*s_etat_processus).erreur_systeme = d_es_processus; |
if (errno != EINTR) |
return; |
{ |
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if (pthread_mutex_unlock(&mutex_liste_threads) != 0) |
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{ |
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(*s_etat_processus).erreur_systeme = d_es_processus; |
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return; |
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} |
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(*s_etat_processus).erreur_systeme = d_es_processus; |
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return; |
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} |
} |
} |
} |
} |
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pthread_mutex_unlock(&((*s_etat_processus).mutex_signaux)); |
} |
} |
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pthread_mutex_unlock(&((*s_etat_processus).mutex_signaux)); |
pthread_mutex_unlock(&mutex_liste_threads); |
} |
} |
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return; |
return; |
Line 2591 nom_segment(unsigned char *chemin, pid_t
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Line 2615 nom_segment(unsigned char *chemin, pid_t
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*/ |
*/ |
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int |
int |
envoi_signal_processus(pid_t pid, enum signaux_rpl signal) |
envoi_signal_processus(pid_t pid, enum signaux_rpl signal, |
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logical1 test_ouverture) |
{ |
{ |
# ifndef OS2 |
# ifndef OS2 |
int segment; |
int segment; |
Line 2611 envoi_signal_processus(pid_t pid, enum s
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Line 2636 envoi_signal_processus(pid_t pid, enum s
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struct_queue_signaux *queue; |
struct_queue_signaux *queue; |
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struct timespec attente; |
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unsigned char *nom; |
unsigned char *nom; |
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// Il s'agit d'ouvrir le segment de mémoire partagée, de le projeter en |
// Il s'agit d'ouvrir le segment de mémoire partagée, de le projeter en |
Line 2646 envoi_signal_processus(pid_t pid, enum s
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Line 2673 envoi_signal_processus(pid_t pid, enum s
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if (msync(s_queue_signaux, sizeof(s_queue_signaux), |
if (msync(s_queue_signaux, sizeof(s_queue_signaux), |
MS_ASYNC | MS_INVALIDATE) != 0) |
MS_ASYNC | MS_INVALIDATE) != 0) |
{ |
{ |
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sem_post(semaphore_queue_signaux); |
return(1); |
return(1); |
} |
} |
# endif |
# endif |
Line 2671 envoi_signal_processus(pid_t pid, enum s
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Line 2699 envoi_signal_processus(pid_t pid, enum s
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} |
} |
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# ifndef OS2 // SysV |
# ifndef OS2 // SysV |
if ((desc = open(nom, O_RDWR)) == -1) |
if (test_ouverture == d_vrai) |
{ |
{ |
sys_free(nom); |
attente.tv_sec = 0; |
return(1); |
attente.tv_nsec = GRANULARITE_us * 1000; |
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while((desc = open(nom, O_RDWR)) == -1) |
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{ |
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nanosleep(&attente, NULL); |
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INCR_GRANULARITE(attente.tv_nsec); |
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} |
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} |
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else |
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{ |
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if ((desc = open(nom, O_RDWR)) == -1) |
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{ |
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sys_free(nom); |
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return(1); |
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} |
} |
} |
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close(desc); |
close(desc); |
Line 2710 envoi_signal_processus(pid_t pid, enum s
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Line 2752 envoi_signal_processus(pid_t pid, enum s
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return(1); |
return(1); |
} |
} |
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if ((segment = shm_open(nom, O_RDWR, 0)) == -1) |
if (test_ouverture == d_vrai) |
{ |
{ |
sys_free(nom); |
attente.tv_sec = 0; |
return(1); |
attente.tv_nsec = GRANULARITE_us * 1000; |
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while((segment = shm_open(nom, O_RDWR, 0)) == -1) |
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{ |
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nanosleep(&attente, NULL); |
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INCR_GRANULARITE(attente.tv_nsec); |
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} |
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} |
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else |
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{ |
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if ((segment = shm_open(nom, O_RDWR, 0)) == -1) |
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{ |
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sys_free(nom); |
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return(1); |
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} |
} |
} |
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sys_free(nom); |
sys_free(nom); |
Line 2732 envoi_signal_processus(pid_t pid, enum s
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Line 2788 envoi_signal_processus(pid_t pid, enum s
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if ((semaphore = sem_open2(pid, SEM_QUEUE)) == SEM_FAILED) |
if ((semaphore = sem_open2(pid, SEM_QUEUE)) == SEM_FAILED) |
{ |
{ |
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# ifndef IPCS_SYSV // POSIX |
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if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
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{ |
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munmap(queue, sizeof(struct_queue_signaux)); |
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close(segment); |
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return(1); |
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} |
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if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
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{ |
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close(segment); |
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return(1); |
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} |
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close(segment); |
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# else // IPCS_SYSV |
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# ifndef OS2 // SysV |
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if (shmdt(queue) != 0) |
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{ |
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return(1); |
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} |
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# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
return(1); |
return(1); |
} |
} |
|
|
if ((signalisation = sem_open2(pid, SEM_SIGNALISATION)) |
if ((signalisation = sem_open2(pid, SEM_SIGNALISATION)) |
== SEM_FAILED) |
== SEM_FAILED) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
sem_close(semaphore); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
close(segment); |
|
sem_close(semaphore); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
sem_close(semaphore); |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
|
sem_close(semaphore); |
return(1); |
return(1); |
} |
} |
|
|
Line 2745 envoi_signal_processus(pid_t pid, enum s
|
Line 2856 envoi_signal_processus(pid_t pid, enum s
|
{ |
{ |
if (errno != EINTR) |
if (errno != EINTR) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) |
|
!= 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
close(segment); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
close(segment); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
sem_close(semaphore); |
sem_close(semaphore); |
sem_close(signalisation); |
sem_close(signalisation); |
return(1); |
return(1); |
Line 2757 envoi_signal_processus(pid_t pid, enum s
|
Line 2901 envoi_signal_processus(pid_t pid, enum s
|
(*queue).pointeur_ecriture = ((*queue).pointeur_ecriture + 1) |
(*queue).pointeur_ecriture = ((*queue).pointeur_ecriture + 1) |
% LONGUEUR_QUEUE_SIGNAUX; |
% LONGUEUR_QUEUE_SIGNAUX; |
|
|
# ifndef IPCS_SYSV |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
# endif |
|
|
|
if (sem_post(semaphore) != 0) |
if (sem_post(semaphore) != 0) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
close(segment); |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
sem_close(semaphore); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
sem_close(semaphore); |
sem_close(semaphore); |
sem_close(signalisation); |
sem_close(signalisation); |
return(1); |
return(1); |
Line 2775 envoi_signal_processus(pid_t pid, enum s
|
Line 2942 envoi_signal_processus(pid_t pid, enum s
|
|
|
if (sem_close(semaphore) != 0) |
if (sem_close(semaphore) != 0) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
close(segment); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
|
sem_close(signalisation); |
return(1); |
return(1); |
} |
} |
|
|
if (sem_post(signalisation) != 0) |
if (sem_post(signalisation) != 0) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
close(segment); |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
sem_close(signalisation); |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
sem_close(signalisation); |
sem_close(signalisation); |
return(1); |
return(1); |
} |
} |
|
|
if (sem_close(signalisation) != 0) |
if (sem_close(signalisation) != 0) |
{ |
{ |
|
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
return(1); |
|
} |
|
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
|
{ |
|
close(segment); |
|
return(1); |
|
} |
|
|
|
close(segment); |
|
# else // IPCS_SYSV |
|
# ifndef OS2 // SysV |
|
if (shmdt(queue) != 0) |
|
{ |
|
return(1); |
|
} |
|
# else // OS/2 |
|
// Pendant de DosGetNamedSHaredMem() |
|
# endif |
|
# endif |
|
|
return(1); |
return(1); |
} |
} |
|
|
# ifndef IPCS_SYSV // POSIX |
# ifndef IPCS_SYSV // POSIX |
|
if (msync(queue, sizeof(queue), MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
munmap(queue, sizeof(struct_queue_signaux)); |
|
close(segment); |
|
return(1); |
|
} |
|
|
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
if (munmap(queue, sizeof(struct_queue_signaux)) != 0) |
{ |
{ |
close(segment); |
close(segment); |
return(1); |
return(1); |
} |
} |
|
|
|
close(segment); |
# else // IPCS_SYSV |
# else // IPCS_SYSV |
# ifndef OS2 // SysV |
# ifndef OS2 // SysV |
if (shmdt(queue) != 0) |
if (shmdt(queue) != 0) |
Line 2933 creation_queue_signaux(struct_processus
|
Line 3194 creation_queue_signaux(struct_processus
|
if ((f_queue_signaux = shm_open(nom, O_RDWR | O_CREAT | O_EXCL, |
if ((f_queue_signaux = shm_open(nom, O_RDWR | O_CREAT | O_EXCL, |
S_IRUSR | S_IWUSR)) == -1) |
S_IRUSR | S_IWUSR)) == -1) |
{ |
{ |
sys_free(nom); |
if (errno != EEXIST) |
(*s_etat_processus).erreur_systeme = d_es_allocation_memoire; |
{ |
return; |
sys_free(nom); |
|
(*s_etat_processus).erreur_systeme = d_es_allocation_memoire; |
|
return; |
|
} |
|
|
|
if ((*s_etat_processus).langue == 'F') |
|
{ |
|
printf("+++Attention : Le segment de mémoire %s préexiste !\n", |
|
nom); |
|
} |
|
else |
|
{ |
|
printf("+++Warning: %s memory segment preexists!\n", nom); |
|
} |
|
|
|
if ((f_queue_signaux = shm_open(nom, O_RDWR | O_CREAT | O_TRUNC, |
|
S_IRUSR | S_IWUSR)) == -1) |
|
{ |
|
sys_free(nom); |
|
(*s_etat_processus).erreur_systeme = d_es_allocation_memoire; |
|
return; |
|
} |
} |
} |
|
|
if (ftruncate(f_queue_signaux, sizeof(struct_queue_signaux)) == -1) |
if (ftruncate(f_queue_signaux, sizeof(struct_queue_signaux)) == -1) |
Line 2990 creation_queue_signaux(struct_processus
|
Line 3272 creation_queue_signaux(struct_processus
|
|
|
(*s_queue_signaux).requete_arret = d_faux; |
(*s_queue_signaux).requete_arret = d_faux; |
|
|
if (msync(s_queue_signaux, sizeof(struct_queue_signaux), MS_SYNC)) |
if (msync(s_queue_signaux, sizeof(struct_queue_signaux), |
|
MS_ASYNC | MS_INVALIDATE) != 0) |
{ |
{ |
(*s_etat_processus).erreur_systeme = d_es_processus; |
(*s_etat_processus).erreur_systeme = d_es_processus; |
return; |
return; |
Line 3156 creation_queue_signaux(struct_processus
|
Line 3439 creation_queue_signaux(struct_processus
|
} |
} |
|
|
(*s_queue_signaux).controle = getpid(); |
(*s_queue_signaux).controle = getpid(); |
|
|
|
# ifndef IPCS_SYSV |
|
if (msync(s_queue_signaux, sizeof(s_queue_signaux), |
|
MS_ASYNC | MS_INVALIDATE) != 0) |
|
{ |
|
(*s_etat_processus).erreur_systeme = d_es_processus; |
|
return; |
|
} |
|
# endif |
|
|
|
if (lancement_thread_signaux(s_etat_processus) == d_erreur) |
|
{ |
|
(*s_etat_processus).erreur_systeme = d_es_processus; |
|
return; |
|
} |
|
|
return; |
return; |
} |
} |
|
|
Line 3176 creation_queue_signaux(struct_processus
|
Line 3475 creation_queue_signaux(struct_processus
|
void |
void |
liberation_queue_signaux(struct_processus *s_etat_processus) |
liberation_queue_signaux(struct_processus *s_etat_processus) |
{ |
{ |
sem_wait(semaphore_arret_signalisation); |
|
(*s_queue_signaux).requete_arret = d_vrai; |
|
|
|
# ifndef IPCS_SYSV |
|
msync(s_queue_signaux, sizeof(s_queue_signaux), MS_ASYNC | MS_INVALIDATE); |
|
# endif |
|
|
|
sem_post(semaphore_arret_signalisation); |
|
|
|
// Incrémenter le sémaphore pour être sûr de le débloquer. |
|
|
|
sem_post(semaphore_signalisation); |
|
|
|
if (getpid() == (*s_queue_signaux).controle) |
|
{ |
|
pthread_join((*s_queue_signaux).thread_signaux, NULL); |
|
} |
|
|
|
# ifdef IPCS_SYSV // SystemV |
# ifdef IPCS_SYSV // SystemV |
# ifndef OS2 |
# ifndef OS2 |
if (shmdt(s_queue_signaux) == -1) |
if (shmdt(s_queue_signaux) == -1) |
Line 3242 destruction_queue_signaux(struct_process
|
Line 3523 destruction_queue_signaux(struct_process
|
# endif |
# endif |
|
|
sem_wait(semaphore_arret_signalisation); |
sem_wait(semaphore_arret_signalisation); |
|
|
(*s_queue_signaux).requete_arret = d_vrai; |
(*s_queue_signaux).requete_arret = d_vrai; |
|
|
# ifndef IPCS_SYSV |
# ifndef IPCS_SYSV |
Line 3255 destruction_queue_signaux(struct_process
|
Line 3535 destruction_queue_signaux(struct_process
|
|
|
sem_post(semaphore_signalisation); |
sem_post(semaphore_signalisation); |
pthread_join((*s_queue_signaux).thread_signaux, NULL); |
pthread_join((*s_queue_signaux).thread_signaux, NULL); |
|
arret_thread_signaux(s_etat_processus); |
|
|
# ifdef IPCS_SYSV // SystemV |
# ifdef IPCS_SYSV // SystemV |
# ifndef OS2 |
# ifndef OS2 |