static void procResult(cache_waiting_t *ptr, rq_blacklist_status_t status)
{
struct timeval tv;
cache_entry_t *entry;
// will need to remove the 'waiting' object from the list... which means
// that the waiting object will need a pointer to the control structure.
assert(ptr);
assert(ptr->blacklist);
assert(ptr->blacklist->waiting);
ll_remove(ptr->blacklist->waiting, ptr);
assert(ptr->ip != 0);
// we need to make an entry in the cache for this entry...
entry = (cache_entry_t *) malloc(sizeof(cache_entry_t));
entry->ip = ptr->ip;
entry->status = status;
// determine the expiry.
assert(ptr->blacklist->expires > 0);
gettimeofday(&tv, NULL);
entry->expires = tv.tv_sec + ptr->blacklist->expires;
// place it at the top.
assert(ptr->blacklist->cache);
ll_push_head(ptr->blacklist->cache, entry);
// call the handler that was saved.
assert(ptr->handler);
ptr->handler(status, ptr->arg);
}
static void
acc (struct statistic *s, const struct ccase *cx,
double c UNUSED, double cc UNUSED, double y)
{
struct box_whisker *bw = UP_CAST (s, struct box_whisker, parent.parent);
bool extreme;
struct outlier *o;
if ( y > bw->hinges[2] + bw->step) /* Upper outlier */
{
extreme = (y > bw->hinges[2] + 2 * bw->step) ;
}
else if (y < bw->hinges[0] - bw->step) /* Lower outlier */
{
extreme = (y < bw->hinges[0] - 2 * bw->step) ;
}
else /* Not an outlier */
{
if (bw->whiskers[0] == SYSMIS)
bw->whiskers[0] = y;
if (y > bw->whiskers[1])
bw->whiskers[1] = y;
return;
}
/* y is an outlier */
o = xzalloc (sizeof *o) ;
o->value = y;
o->extreme = extreme;
ds_init_empty (&o->label);
if (bw->id_var)
{
char *s = data_out (case_data_idx (cx, bw->id_idx),
var_get_encoding (bw->id_var),
var_get_print_format (bw->id_var));
ds_put_cstr (&o->label, s);
free (s);
}
else
{
ds_put_format (&o->label,
"%ld",
(casenumber) case_data_idx (cx, bw->id_idx)->f);
}
ll_push_head (&bw->outliers, &o->ll);
}
//-----------------------------------------------------------------------------
// This callback function is used when a complete message is received to
// consume. We basically need to create a request to handle it, add it to the
// list. If a reply is sent during the processing, then it will close out the
// request automatically, otherwise it will be up to something else to close it
// out.
static void message_handler(rq_message_t *msg, void *arg)
{
int processed;
rq_http_t *http;
rq_http_req_t *req;
assert(msg);
assert(arg);
http = (rq_http_t *) arg;
assert(http);
// We dont know what the use of this object will be, so we need to create it
// and put it in a list (to keep track of it) until something gets rid of it.
req = req_new(http, http->arg);
req->msg = msg;
assert(req->reply);
assert(BUF_LENGTH(req->reply) == 0);
assert(msg->data);
assert(http->risp);
processed = risp_process(http->risp, req, BUF_LENGTH(msg->data), BUF_DATA(msg->data));
assert(processed == BUF_LENGTH(msg->data));
// if we still have the msg pointer as part of the request, then the message
// hasn't been replied yet, so we need to add the request to the list and
// let it finish elsewhere.
if (req->msg) {
assert(req->inprocess == 0);
req->inprocess++;
// then we need to add this request to the list.
assert(http->req_list);
ll_push_head(http->req_list, req);
req = NULL;
}
else {
// We have already replied to the request, so we dont need it anymore.
req_free(req);
req = NULL;
}
}
//-----------------------------------------------------------------------------
// callback function that will fire when the connection to the controller is reached.
static void controller_connect_handler(int fd, short int flags, void *arg)
{
controller_t *ct = (controller_t *) arg;
node_t *node;
system_data_t *sysdata;
queue_t *q;
int error;
socklen_t foo;
struct timeval t = {.tv_sec = 1, .tv_usec = 0};
short int exclusive;
assert(fd >= 0);
assert(flags != 0);
assert(ct);
assert(ct->node == NULL);
assert(ct->target);
assert(ct->sysdata);
sysdata = ct->sysdata;
// we only need to detect EV_WRITE for a connect event.
assert(flags == EV_WRITE);
// remove the connect event
assert(ct->connect_event);
event_free(ct->connect_event);
ct->connect_event = NULL;
// we are no longer connected. We are either connected, or not.
assert(BIT_TEST(ct->flags, FLAG_CONTROLLER_CONNECTING));
BIT_CLEAR(ct->flags, FLAG_CONTROLLER_CONNECTING);
// check to see if we really are connected.
foo = sizeof(error);
getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &foo);
if (error == ECONNREFUSED) {
// we were connecting, but couldn't.
BIT_SET(ct->flags, FLAG_CONTROLLER_CLOSED);
// close the socket that didn't connect.
close(fd);
//set the action so that we can attempt to reconnect.
assert(ct->connect_event == NULL);
assert(sysdata->evbase);
ct->connect_event = evtimer_new(sysdata->evbase, controller_wait_handler, (void *) ct);
evtimer_add(ct->connect_event, &t);
}
else {
logger(((system_data_t *)ct->sysdata)->logging, 2,
"connected to remote controller: %s", ct->target);
// create the node object.
node = node_create(sysdata, fd);
// add node to the main nodes list.
ct->node = node;
assert(node->controller == NULL);
node->controller = ct;
BIT_SET(node->flags, FLAG_NODE_CONTROLLER);
// we need to check to see if we have any queues with active consumers,
// and if we do, then we need to send consume requests to this node for
// each one.
assert(sysdata->queues);
ll_start(sysdata->queues);
while ((q = ll_next(sysdata->queues))) {
assert(q->qid > 0);
assert(q->name);
if (ll_count(&q->nodes_busy) > 0 || ll_count(&q->nodes_ready) > 0) {
logger(((system_data_t *)ct->sysdata)->logging, 2,
"Sending queue consume ('%s') to alternate controller at %s",
q->name, ct->target );
exclusive = 0;
if (BIT_TEST(q->flags, QUEUE_FLAG_EXCLUSIVE))
exclusive = 1;
sendConsume(node, q->name, 1, RQ_PRIORITY_LOW, exclusive);
ll_push_head(&q->nodes_consuming, node);
}
}
ll_finish(sysdata->queues);
}
}
void controller_connect(controller_t *ct)
{
evutil_socket_t sock;
int result;
int len;
assert(ct);
assert(ct->target);
assert(ct->node == NULL);
assert(BIT_TEST(ct->flags, FLAG_CONTROLLER_CONNECTED) == 0);
assert(BIT_TEST(ct->flags, FLAG_CONTROLLER_FAILED) == 0);
assert(BIT_TEST(ct->flags, FLAG_CONTROLLER_CONNECTING) == 0);
// if not already resolved.... resolve the target.
if (BIT_TEST(ct->flags, FLAG_CONTROLLER_RESOLVED) == 0) {
assert(ct->flags == 0);
logger(((system_data_t *)ct->sysdata)->logging, 3, "resolving controller %s.", ct->target);
len = sizeof(ct->saddr);
if (evutil_parse_sockaddr_port(ct->target, &ct->saddr, &len) == 0) {
BIT_SET(ct->flags, FLAG_CONTROLLER_RESOLVED);
}
else {
BIT_SET(ct->flags, FLAG_CONTROLLER_FAILED);
}
}
if (BIT_TEST(ct->flags, FLAG_CONTROLLER_FAILED) == 0) {
assert(BIT_TEST(ct->flags, FLAG_CONTROLLER_RESOLVED));
BIT_SET(ct->flags, FLAG_CONTROLLER_CONNECTING);
sock = socket(AF_INET,SOCK_STREAM,0);
assert(sock >= 0);
// Before we attempt to connect, set the socket to non-blocking mode.
evutil_make_socket_nonblocking(sock);
logger(((system_data_t *)ct->sysdata)->logging, 3, "Attempting Remote connect to %s.", ct->target);
result = connect(sock, &ct->saddr, sizeof(struct sockaddr));
assert(result < 0);
assert(errno == EINPROGRESS);
// connect process has been started. Now we need to create an event so that we know when the connect has completed.
assert(ct->connect_event == NULL);
assert(ct->sysdata);
assert(((system_data_t *)ct->sysdata)->evbase);
ct->connect_event = event_new(((system_data_t *)ct->sysdata)->evbase, sock, EV_WRITE, controller_connect_handler, ct);
event_add(ct->connect_event, NULL);
}
else {
assert(ct->target);
logger(((system_data_t *)ct->sysdata)->logging, 2, "Remote connect to %s has failed.", ct->target);
}
}
