/* request 110 */
int uwsgi_request_signal(struct wsgi_request *wsgi_req) {
ssize_t len;
uint8_t ret_status = 1;
if (uwsgi_signal_send(uwsgi.signal_socket, wsgi_req->uh.modifier2) < 0) {
ret_status = 0;
}
wsgi_req->uh.modifier1 = 255;
wsgi_req->uh.pktsize = 0;
wsgi_req->uh.modifier2 = ret_status;
len = write(wsgi_req->poll.fd, wsgi_req, 4);
if (len != 4) {
uwsgi_error("write()");
}
return UWSGI_OK;
}
void uwsgi_route_signal(uint8_t sig) {
struct uwsgi_signal_entry *use = &ushared->signal_table[sig];
int i;
// send to first available worker
if (use->receiver[0] == 0 || !strcmp(use->receiver, "worker") || !strcmp(use->receiver, "worker0")) {
if (uwsgi_signal_send(ushared->worker_signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to workers pool\n", sig);
}
}
// send to all workers
else if (!strcmp(use->receiver, "workers")) {
for (i = 1; i <= uwsgi.numproc; i++) {
if (uwsgi_signal_send(uwsgi.workers[i].signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to worker %d\n", sig, i);
}
}
}
// route to specific worker
else if (!strncmp(use->receiver, "worker", 6)) {
i = atoi(use->receiver + 6);
if (i > uwsgi.numproc) {
uwsgi_log("invalid signal target: %s\n", use->receiver);
}
if (uwsgi_signal_send(uwsgi.workers[i].signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to worker %d\n", sig, i);
}
}
// route to subscribed
else if (!strcmp(use->receiver, "subscribed")) {
}
// route to spooler
#ifdef UWSGI_SPOOLER
else if (!strcmp(use->receiver, "spooler")) {
if (ushared->worker_signal_pipe[0] != -1) {
if (uwsgi_signal_send(ushared->spooler_signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to the spooler\n", sig);
}
}
}
#endif
else if (!strcmp(use->receiver, "mules")) {
for (i = 0; i < uwsgi.mules_cnt; i++) {
if (uwsgi_signal_send(uwsgi.mules[i].signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to mule %d\n", sig, i + 1);
}
}
}
else if (!strncmp(use->receiver, "mule", 4)) {
i = atoi(use->receiver + 4);
if (i > uwsgi.mules_cnt) {
uwsgi_log("invalid signal target: %s\n", use->receiver);
}
else if (i == 0) {
if (uwsgi_signal_send(ushared->mule_signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to a mule\n", sig);
}
}
else {
if (uwsgi_signal_send(uwsgi.mules[i - 1].signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to mule %d\n", sig, i);
}
}
}
else if (!strncmp(use->receiver, "farm_", 5)) {
char *name = use->receiver + 5;
struct uwsgi_farm *uf = get_farm_by_name(name);
if (!uf) {
uwsgi_log("unknown farm: %s\n", name);
return;
}
if (uwsgi_signal_send(uf->signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to farm %d (%s)\n", sig, uf->id, uf->name);
}
}
else if (!strncmp(use->receiver, "farm", 4)) {
i = atoi(use->receiver + 4);
if (i > uwsgi.farms_cnt || i <= 0) {
uwsgi_log("invalid signal target: %s\n", use->receiver);
}
else {
if (uwsgi_signal_send(uwsgi.farms[i - 1].signal_pipe[0], sig)) {
uwsgi_log("could not deliver signal %d to farm %d (%s)\n", sig, i, uwsgi.farms[i - 1].name);
}
}
}
else {
// unregistered signal, sending it to all the workers
uwsgi_log("^^^ UNSUPPORTED SIGNAL TARGET: %s ^^^\n", use->receiver);
}
}
