/*Initialisation des outils necessaires au fontionnement du thread*/
void commande_windows(arg_commande_windows_t* ipc)
{
statut = ipc->shm_statut;
lot = ipc->shm_lot;
entrepot = ipc->shm_entrepot;
mtx_entrepot = ipc->entrepot;
sem_erreur_palette = ipc->palette;
sem_erreur_carton = ipc->carton;
sem_AU = ipc->AU;
sem_clapet = ipc->clapet;
wait_order(my_socket);
}
/*
* contol read/write threads by handling global_run_operation
*/
void *rw_ctl_loop(int ctl_fd)
{
ssize_t rlen;
char buf[HOST_MSG_SIZE];
int ret;
/* Setup signal handlers */
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGQUIT, signal_handler);
while (!global_sig_receive) {
ret = wait_order(ctl_fd);
if (ret < 0)
break;
rlen = read(ctl_fd, buf, sizeof(buf));
if (rlen < 0) {
pr_err("read data error in ctl thread\n");
goto error;
}
if (rlen == 2 && buf[0] == '1') {
/*
* If host writes '1' to a control path,
* this controller wakes all read/write threads.
*/
global_run_operation = true;
pthread_cond_broadcast(&cond_wakeup);
pr_debug("Wake up all read/write threads\n");
} else if (rlen == 2 && buf[0] == '0') {
/*
* If host writes '0' to a control path, read/write
* threads will wait for notification from Host.
*/
global_run_operation = false;
pr_debug("Stop all read/write threads\n");
} else
pr_info("Invalid host notification: %s\n", buf);
}
return NULL;
error:
exit(EXIT_FAILURE);
}
