void be_dns_read_cb(struct ev_loop *loop, struct ev_io *w, int revents)
{
struct client *cli = ((struct client*) (((char*)w) - offsetof(struct client, ev_read)));
ev_timer_stop(EV_A_ &cli->ev_tout);
mark_time(cli, READ_BE);
char dns_buffer[4096];
int ret = recv(cli->fd_be, dns_buffer, sizeof(dns_buffer), 0);
if (ret <= 0) {
ev_io_stop(EV_A_ w);
delete_client(cli);
return;
}
dns_buffer[ret] = 0;
printf("recv: %s\n", dns_buffer);
if (ret > 0) {
cli->status = 200;
} else {
cli->status = 404;
}
ev_io_stop(EV_A_ w);
ev_io_init(&cli->ev_write, cli->write_cb, cli->fd, EV_WRITE);
ev_io_start(loop, &cli->ev_write);
}
void cmd_user(t_server *serv, int fd, t_message *msg)
{
if (serv->client[fd].registered)
reply_response(serv, fd, ERR_ALREADYREGISTRED, 0);
else if (!(serv->client[fd].keyed) || !(serv->client[fd].nick[0]))
delete_client(serv, fd);
else if (msg->param_count < 4)
reply_response(serv, fd, ERR_NEEDMOREPARAMS, 0);
else
{
serv->client[fd].username = strdup(msg->param[0]);
serv->client[fd].realname = strdup(msg->param[3]);
serv->client[fd].registered = 1;
reply_response(serv, fd, RPL_WELCOME, 0);
reply_response(serv, fd, RPL_YOURHOST, 0);
reply_response(serv, fd, RPL_CREATED, 0);
reply_response(serv, fd, RPL_MYINFO, 0);
reply_response(serv, fd, RPL_LUSERCLIENT, 0);
reply_response(serv, fd, RPL_LUSEROP, 0);
reply_response(serv, fd, RPL_LUSERUNKNOWN, 0);
reply_response(serv, fd, RPL_LUSERCHANNELS, 0);
reply_response(serv, fd, RPL_LUSERME, 0);
printf("Client registred %s on socket %d\n", serv->client[fd].nick, fd);
}
}
/* clear SIGCHLD flag and adjust context if needed
*/
static void
wait_children( struct server_ctx* ctx, int options )
{
int status, n = 0;
pid_t pid;
assert( ctx );
if (0 == g_childexit) {
TRACE( (void)tmfputs ("No children exited since last check\n",
g_flog) );
return;
}
g_childexit = 0;
TRACE( (void)tmfputs ("Waiting on exited children\n", g_flog) );
while( 0 < (pid = waitpid( -1, &status, options )) ) {
TRACE( (void)tmfprintf( g_flog, "Client [%d] has exited.\n", pid) );
delete_client( ctx, pid );
++n;
}
if( (-1 == pid) && ( ECHILD != errno ) ) {
mperror(g_flog, errno, "%s: waitpid", __func__);
}
if (n > 0) {
TRACE( (void)tmfprintf (g_flog, "Cleaned up %d children, "
"%ld still running\n", n, (long)(ctx->clmax - ctx->clfree)) );
}
return;
}
static void
xmms_visualization_client_shutdown (xmms_visualization_t *vis, int32_t id, xmms_error_t *err)
{
g_mutex_lock (&vis->clientlock);
delete_client (id);
g_mutex_unlock (&vis->clientlock);
}
/**
* Allows to create a new client
*/
inline void create_client() {
//Delete the previous client if any
delete_client();
//Create a new client
m_client = new generic_client(m_uri, bind(&client_manager::notify_new_msg, this, _1),
bind(&client_manager::notify_conn_closed, this), NULL);
}
/**
* The basic destructor class
*/
virtual ~client_manager() {
//Destroy the translation jobs sending thread
if (m_sending_thread_ptr != NULL) {
delete m_sending_thread_ptr;
}
//Destroy the client
delete_client();
}
int virtual_stream_disconnect(Channel * c, char * token, char * id) {
int err = 0;
StreamClient * client = find_client(id, c);
if (client == NULL) err = errno;
if (!err) delete_client(client);
return err == 0 ? 0 : -1;
}
static thread_func_t tcp_register_client_thread(void* s)
{
char buffer[NL_BUFFER_SIZE+1];
server_game* g;
client* c = (client*)s;
void* remember = NULL;
/* Then, we add the client to the array, such that he will
* be informed whenever a new server arrives or leaves. */
lock_w(&client_array);
rAdd(&client_array, (void*)c);
lock_uw(&client_array);
/* We now give him the preliminary information, list all the
* servers already present. */
lock_r(&game_server_array);
nl_tcp_sndInt(game_server_array.length, c->socket);
if((g = (server_game*)rGet(&game_server_array, FIRST, &remember)) != NULL)
{
do
{
nl_tcp_snd(g->name, c->socket); /* Send the server's name */
nl_snd_addr(g->addr, c->socket); /* And now it's address. */
}
while((g = (server_game*)rGet(&game_server_array, NEXT, &remember)) != NULL);
}
lock_ur(&game_server_array);
/*
* Done. We can now communicate.
* Actually we do not have much to say to each other.
* This is just a little trick to just wait, and then the
* client leaves, this will exit.
*/
nl_tcp_rcv(buffer, c->socket);
/* Close the client socket
* If it has been closed from extern, don't try to close it again! */
close(c->socket);
lock_w(&client_array);
rDelete(&client_array, (void*)c, NULL);
delete_client((void*)c);
lock_uw(&client_array);
LOG("Client thread terminated.");
thread_exit();
}
int queue_get_udp_data(t_conf *conf, t_simple_list *client)
{
char buffer[MAX_REQ_LEN + 1];
struct dns_hdr *hdr;
int len;
t_list *queue;
buffer[MAX_REQ_LEN] = 0;
len = read(conf->sd_udp, buffer, MAX_REQ_LEN);
hdr = (struct dns_hdr *) buffer;
for (; client; client = client->next)
{
for (queue = client->queue; queue; queue = queue->next)
{
if ((queue->status == SENT) && (queue->peer.id == hdr->id))
{
if (hdr->rcode)
{
if (hdr->rcode == RCODE_NAME_ERR)
{
/* Reply already sent and acked by server
Bug ?
*/
if (client->control.cumul_errors++ > MAX_CLIENT_ERROR)
{
DPRINTF(1, "Too many packet lost by server. Reseting connection ...\n");
return (delete_client(conf, client));
}
}
DPRINTF(2, "Connection reject code %d id = 0x%x (%s)\n", hdr->rcode, hdr->id,
(hdr->rcode == RCODE_REFUSED) ? "Connection Lost" : /* state not found */
(hdr->rcode == RCODE_NAME_ERR) ? "Query not found or already done" : "" /* already replied */
);
return (0);
}
DPRINTF(2, "Received [%d] id=0x%x\n", queue->info.num_seq, hdr->id);
client->control.cumul_errors = 0;
memcpy(queue->data, buffer, len);
queue->data[len] = 0;
queue->status = RECEIVED;
queue->len = len;
queue_flush(conf, client);
return (0);
}
}
}
DPRINTF(2, "received reply for unknow request 0x%x \n", hdr->id);
return (0);
}
void Store::release_client()
{
// If this thread already has a client delete it and remove it from
// thread-local storage.
TRC_DEBUG("Looking to release thread-local client");
Client* client = (Client*)pthread_getspecific(_thread_local);
if (client != NULL)
{
TRC_DEBUG("Found thread-local client - destroying");
delete_client(client);
client = NULL;
pthread_setspecific(_thread_local, NULL);
}
}
int extract_data(t_conf *conf, t_simple_list *client, t_list *queue)
{
char buffer[MAX_REQ_LEN - DNS_HDR_SIZE - REQ_HDR_SIZE];
char name[MAX_REQ_LEN - DNS_HDR_SIZE - REQ_HDR_SIZE];
struct rr_hdr *reply;
t_packet *packet;
int len;
uint16_t seq_tmp;
if (!(reply = get_reply(queue->data, queue->len)))
return (-1);
dns_simple_decode(JUMP_RR_HDR(reply), buffer,
DECODED_LEN((queue->len - (int) (JUMP_RR_HDR(reply) - queue->data)) + 1));
DPRINTF(3, "dns_decode [%d] = %s\n",queue->info.num_seq, buffer);
if ((len = base64_decode((unsigned char *)name, buffer)))
{
packet = (t_packet *)name;
seq_tmp = ntohs(packet->seq); packet->seq = seq_tmp;
queue->info.num_seq = packet->seq;
if (packet->type == DESAUTH)
{
DPRINTF(1, "Received desauth\n");
delete_client(conf, client);
return (-1);
}
if (queue->peer.type == DATA)
client->control.data_pending--;
else
client->control.nop_pending--;
if ((packet->type & DATA) != DATA)
return (0);
if ((len - PACKET_LEN) < 0)
{
MYERROR("bug ! reply len = %d\n", len);
printf("encode = %s -> %s\n ... dumping reply and calling while(1); \n",
(char *)(JUMP_RR_HDR(reply)), (char *)buffer);
memdump(queue->data, queue->len);
while(1);
}
DPRINTF(2, "Write [%d] %d\n", packet->seq, len - PACKET_LEN);
write(client->sd_tcp, &name[PACKET_LEN], len - PACKET_LEN);
}
return (0);
}
static void command_disconnect(char * token, Channel * c) {
char id[256];
StreamClient * client = NULL;
int err = 0;
json_read_string(&c->inp, id, sizeof(id));
if (read_stream(&c->inp) != 0) exception(ERR_JSON_SYNTAX);
if (read_stream(&c->inp) != MARKER_EOM) exception(ERR_JSON_SYNTAX);
client = find_client(id, c);
if (client == NULL) err = errno;
if (!err) delete_client(client);
write_stringz(&c->out, "R");
write_stringz(&c->out, token);
write_errno(&c->out, err);
write_stream(&c->out, MARKER_EOM);
}
// Warning Zombie ahead
void delete_zombie(t_conf *conf)
{
t_simple_list *client;
t_simple_list *tmp;
struct timeval tv;
struct timezone tz;
if (!(gettimeofday(&tv, &tz)))
for (client = conf->client; client; client = tmp)
{
tmp = client->next;
if (tv.tv_sec > client->control.tv.tv_sec)
{
if (client->sd_tcp != -1)
close(client->sd_tcp);
delete_client(conf, client);
}
}
}
static void channel_close_listener(Channel * c) {
LINK * l = NULL;
for (l = clients.next; l != &clients;) {
StreamClient * client = all2client(l);
l = l->next;
if (client->channel == c) {
trace(LOG_ALWAYS, "Stream is left connected by client: VS%d", client->stream->id);
delete_client(client);
}
}
for (l = subscriptions.next; l != &subscriptions;) {
Subscription * h = all2subscription(l);
l = l->next;
if (h->channel == c) {
delete_subscription(h);
}
}
}
gboolean
write_udp (xmmsc_vis_udp_t *t, xmms_vis_client_t *c, int32_t id, struct timeval *time, int channels, int size, short *buf, int socket)
{
xmmsc_vis_udp_data_t packet_d;
xmmsc_vischunk_t *__unaligned_dest;
short res;
int offset;
char* packet;
/* first check if the client is still there */
if (t->grace == 0) {
delete_client (id);
return FALSE;
}
if (t->socket == 0) {
return FALSE;
}
packet = packet_init_data (&packet_d);
t->grace--;
XMMSC_VIS_UNALIGNED_WRITE (packet_d.__unaligned_grace, htons (t->grace), uint16_t);
__unaligned_dest = packet_d.__unaligned_data;
XMMSC_VIS_UNALIGNED_WRITE (&__unaligned_dest->timestamp[0],
(int32_t)htonl (time->tv_sec), int32_t);
XMMSC_VIS_UNALIGNED_WRITE (&__unaligned_dest->timestamp[1],
(int32_t)htonl (time->tv_usec), int32_t);
XMMSC_VIS_UNALIGNED_WRITE (&__unaligned_dest->format, (uint16_t)htons (c->format), uint16_t);
res = fill_buffer (__unaligned_dest->data, &c->prop, channels, size, buf);
XMMSC_VIS_UNALIGNED_WRITE (&__unaligned_dest->size, (uint16_t)htons (res), uint16_t);
offset = ((char*)&__unaligned_dest->data - (char*)__unaligned_dest);
sendto (socket, packet, XMMS_VISPACKET_UDP_OFFSET + offset + res * sizeof (int16_t), 0, (struct sockaddr *)&t->addr, sizeof (t->addr));
free (packet);
return TRUE;
}
static void
xmms_visualization_destroy (xmms_object_t *object)
{
XMMS_DBG ("Deactivating visualization object.");
xmms_object_unref (vis->output);
/* TODO: assure that the xform is already dead! */
g_mutex_clear (&vis->clientlock);
xmms_log_debug ("starting cleanup of %d vis clients", vis->clientc);
for (; vis->clientc > 0; --vis->clientc) {
delete_client (vis->clientc - 1);
}
if (xmms_socket_valid (vis->socket)) {
/* it seems there is no way to remove the watch */
g_io_channel_shutdown (vis->socketio, FALSE, NULL);
xmms_socket_close (vis->socket);
}
xmms_visualization_unregister_ipc_commands ();
}
static void __exit alsa_seq_dummy_exit(void)
{
delete_client();
}
static void free_clients(t_server *infos)
{
while (infos->network.client != NULL)
infos->network.client = delete_client(infos, infos->network.client->data);
}
/*main function*/
int main(int argc, char **argv)
{
int opt;
enum OPER_TYPE type;
char path[FILE_NAME_LEN] = {0};
char output_path[FILE_NAME_LEN] = {0};
int delete_job;
Client *c= NULL;
if(argc<2)
return -1;
struct option long_options[] = {
{"Simulate", 1, NULL, 'S'},
{"quit", 0, NULL, 'q'},
{"backup", 1, NULL, 'b'},
{"delete", 1, NULL, 'd'},
{"restore", 1, NULL, 'r'},
{"list", 0, NULL, 'l'},
{"pipeline", 0, NULL, 'p'},
{"output", 1, NULL, 'o'},
{"cloud", 0, NULL, 'c'},
{"rewrite", 1, NULL, 'R'},
/*CFL*/
{"CFL", 1, NULL, 'C'},
{"seg_reuse", 1, NULL, 's'},
/*capping*/
{"cap_size", 1, NULL, 'a'},
{"cap_count", 1, NULL, 'e'},
/*perferect rewrite*/
{"ref_threshold", 1, NULL, 'u'},
{"overhead", 1, NULL, 'O'},
{"test", 1, NULL, 't'},
{"server", 1, NULL, 'H'},
{"help", 0, NULL, 'h'},
{NULL, 0, NULL, 0}
};
while((opt=getopt_long(argc, argv, "S:qb:d:r:lpo:cR:C:s:a:e:u:O:t:H:h", long_options, NULL))!=-1){
switch(opt){
case 'S':
type=type_simulate;
SIMULATE = true;
strncpy(path, optarg, strlen(optarg));
break;
case 'q':
type=type_quit;
break;
case 'b':
type=type_backup;
strncpy(path,optarg,strlen(optarg));
break;
case 'd':
type=type_delete;
sscanf(optarg, "%d", &delete_job);
break;
case 'r':
type=type_restore;
strncpy(path,optarg,strlen(optarg));
break;
case 'R':
if (strcmp(optarg, "CFL") == 0)
REWRITE = CFL_REWRITE;
else if (strcmp(optarg, "CAP") == 0)
REWRITE = CAPPING_REWRITE;
else if (strcmp(optarg, "PER") == 0)
REWRITE = PERFECT_REWRITE;
break;
case 'C':
sscanf(optarg, "%f", &LWM);
break;
case 's':
sscanf(optarg, "%f", &default_container_reuse);
break;
case 'a':
sscanf(optarg, "%lld", &buffer_capacity);
break;
case 'e':
sscanf(optarg, "%d", &max_refer_count);
break;
case 'u':
sscanf(optarg, "%f", &segment_usage_threshold);
break;
case 'O':
OVERHEAD = true;
sscanf(optarg, "%f", &bandwidth);
break;
case 't':
type=type_test;
strncpy(path,optarg,strlen(optarg));
break;
case 'h':
type=type_help;
break;
break;
case 'H':
memset(SERVER_IP,0,30);
strncpy(SERVER_IP,optarg,strlen(optarg));
break;
case 'l':
type=type_list;
break;
case 'p':
G_PIPELINE = true;
break;
case 'o':
OUTPUT_RESULT = true;
strncpy(output_path, optarg, strlen(optarg));
break;
case 'c':
CLOUD = true;
break;
default:
printf("Your command is wrong \n");
type=type_help;
break;
}
}
if(type==type_help){
usage(argv[0]);
return 0;
}
c = create_client();
if (type == type_simulate) {
simulata_backup(c, path, output_path);
free(c);
return 0;
}else if(OVERHEAD == true) {
backup_overhead(c, path, output_path);
free(c);
return 0;
}
if ((c->fd = bnet_connect(SERVER_IP, SERVER_PORT)) == -1){
err_msg1("Connection rejected!");
return 0;
}
if (G_PIPELINE) {
c->recipe_fd = bnet_connect(SERVER_IP, SERVER_OTH_PORT);
if (c->recipe_fd == -1) {
err_msg1("Connection rejected!");
return 0;
}
}
if(type==type_test){
test_data(c->fd, path);
return 0;
}
switch(type){
case type_login:
login(c);
break;
case type_logout:
logout(c);
break;
case type_quit:
quit_client(c);
break;
case type_backup:
if (G_PIPELINE)
pipeline_backup(c, path, output_path);
else
backup_client(c, path, output_path);
break;
case type_restore:
restore_client(c, path, output_path);
break;
case type_delete:
delete_client(c, delete_job);
break;
case type_list:
list_client(c);
break;
default:
printf("Your command is wrong \n");
break;
}
free_client(c);
return 0;
}
int do_server(t_conf *conf)
{
fd_set rfds;
int retval;
int max_fd;
t_simple_list *client;
t_simple_list *tmp;
struct timeval tv;
struct timezone tz;
#ifdef DEBUG
char buffer[MINI_BUFF];
#endif
while (1)
{
max_fd = prepare_select(conf, &rfds, &tv);
retval = select(max_fd + 1 , &rfds, NULL, NULL, &tv);
queue_flush_expired_data(conf);
if (retval == -1)
{
perror("");
MYERROR("select");
return (-1);
}
if (!retval)
{
if (gettimeofday(&tv, &tz))
{
MYERROR("Time Error");
return (-1);
}
delete_zombie(conf);
continue;
}
#ifdef DEBUG
if ((conf->foreground) && (FD_ISSET(0, &rfds)))
{
read(0, buffer, MINI_BUFF);
queue_dump(conf->client);
continue;
}
#endif
if (FD_ISSET(conf->sd_udp, &rfds))
get_incoming_request(conf);
else
{
for (client = conf->client; client; client = tmp)
{
tmp = client->next;
if ((client->sd_tcp != -1) && (FD_ISSET(client->sd_tcp, &rfds)))
{
if (queue_read_tcp(conf, client))
{
if (client->sd_tcp != -1)
close(client->sd_tcp);
delete_client(conf, client);
}
}
}
}
delete_zombie(conf);
}
}
