static isc_result_t
configure_listener(isc_sockaddr_t *address, ns_lwresd_t *lwresd,
isc_mem_t *mctx, ns_lwreslistenerlist_t *newlisteners)
{
ns_lwreslistener_t *listener, *oldlistener = NULL;
char socktext[ISC_SOCKADDR_FORMATSIZE];
isc_result_t result;
(void)find_listener(address, &oldlistener);
listener = NULL;
result = listener_create(mctx, lwresd, &listener);
if (result != ISC_R_SUCCESS) {
isc_sockaddr_format(address, socktext, sizeof(socktext));
isc_log_write(ns_g_lctx, ISC_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_WARNING,
"lwres failed to configure %s: %s",
socktext, isc_result_totext(result));
return (result);
}
/*
* If there's already a listener, don't rebind the socket.
*/
if (oldlistener == NULL) {
result = listener_bind(listener, address);
if (result != ISC_R_SUCCESS) {
ns_lwreslistener_detach(&listener);
return (ISC_R_SUCCESS);
}
} else
listener_copysock(oldlistener, listener);
result = listener_startclients(listener);
if (result != ISC_R_SUCCESS) {
isc_sockaddr_format(address, socktext, sizeof(socktext));
isc_log_write(ns_g_lctx, ISC_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_WARNING,
"lwres: failed to start %s: %s", socktext,
isc_result_totext(result));
ns_lwreslistener_detach(&listener);
return (ISC_R_SUCCESS);
}
if (oldlistener != NULL) {
/*
* Remove the old listener from the old list and shut it down.
*/
ISC_LIST_UNLINK(listeners, oldlistener, link);
listener_shutdown(oldlistener);
ns_lwreslistener_detach(&oldlistener);
} else {
isc_sockaddr_format(address, socktext, sizeof(socktext));
isc_log_write(ns_g_lctx, ISC_LOGCATEGORY_GENERAL,
NS_LOGMODULE_LWRESD, ISC_LOG_NOTICE,
"lwres listening on %s", socktext);
}
ISC_LIST_APPEND(*newlisteners, listener, link);
return (result);
}
/*
** Prepares the selector for the game
*/
static int bstrap_stor(selector_t **stor, parser_t *parser)
{
*stor = selector_create();
if (!(*stor))
return (84);
(*stor)->s_data = game_create(parser->width, parser->height,
parser->freq, parser->client_nb);
if (!(*stor)->s_data) {
selector_delete((*stor));
return (84);
}
(*stor)->s_delete = game_delete;
(*stor)->s_on_cycle = game_on_cycle;
add_teams((*stor)->s_data, parser->team_name);
if (listener_create((*stor), parser->port)) {
perror("listener");
selector_delete((*stor));
return (84);
}
return (0);
}
void *network_thread (void *data)
{
struct installer *instp = (struct installer *)data;
int ctrllisten, ctrlconnfd;
socklen_t clilen;
struct sockaddr_un cliaddr;
ipc_message msg;
int nread;
struct msg_elem *notification;
int ret;
if (!instp) {
TRACE("Fatal error: Network thread aborting...");
return (void *)0;
}
SIMPLEQ_INIT(¬ifymsgs);
register_notifier(network_notifier);
/* Initialize and bind to UDS */
ctrllisten = listener_create(SOCKET_CTRL_PATH, SOCK_STREAM);
if (ctrllisten < 0 ) {
TRACE("Error creating IPC sockets");
exit(2);
}
do {
clilen = sizeof(cliaddr);
if ( (ctrlconnfd = accept(ctrllisten, (struct sockaddr *) &cliaddr, &clilen)) < 0) {
if (errno == EINTR)
continue;
else {
TRACE("Accept returns: %s", strerror(errno));
continue;
}
}
nread = read(ctrlconnfd, (void *)&msg, sizeof(msg));
if (nread != sizeof(msg)) {
TRACE("IPC message too short: fragmentation not supported");
close(ctrlconnfd);
continue;
}
#ifdef DEBUG_IPC
TRACE("request header: magic[0x%08X] type[0x%08X]", msg.magic, msg.type);
#endif
pthread_mutex_lock(&stream_mutex);
if (msg.magic == IPC_MAGIC) {
switch (msg.type) {
case REQ_INSTALL:
TRACE("Incoming network request: processing...");
if (instp->status == IDLE) {
instp->fd = ctrlconnfd;
msg.type = ACK;
/* Drop all old notification from last run */
cleanum_msg_list();
/* Wake-up the installer */
pthread_cond_signal(&stream_wkup);
} else {
msg.type = NACK;
sprintf(msg.data.msg, "Installation in progress");
}
break;
case GET_STATUS:
msg.type = GET_STATUS;
memset(msg.data.msg, 0, sizeof(msg.data.msg));
msg.data.status.current = instp->status;
msg.data.status.last_result = instp->last_install;
msg.data.status.error = instp->last_error;
/* Get first notification from the queue */
pthread_mutex_lock(&msglock);
notification = SIMPLEQ_FIRST(¬ifymsgs);
if (notification) {
SIMPLEQ_REMOVE_HEAD(¬ifymsgs, next);
nrmsgs--;
strncpy(msg.data.status.desc, notification->msg,
sizeof(msg.data.status.desc) - 1);
#ifdef DEBUG_IPC
printf("GET STATUS: %s\n", msg.data.status.desc);
#endif
msg.data.status.current = notification->status;
msg.data.status.error = notification->error;
}
pthread_mutex_unlock(&msglock);
break;
default:
msg.type = NACK;
}
} else {
/* Wrong request */
msg.type = NACK;
sprintf(msg.data.msg, "Wrong request: aborting");
}
ret = write(ctrlconnfd, &msg, sizeof(msg));
if (ret < 0)
printf("Error write on socket ctrl");
if (msg.type != ACK)
close(ctrlconnfd);
pthread_mutex_unlock(&stream_mutex);
} while (1);
return (void *)0;
}
