* Activate a paraslash sender.
*
* \param ss The sender to activate.
- * \param protocol The symbolic name of the transport-layer protocol.
+ * \param protocol layer4 type (IPPROTO_TCP or IPPROTO_DCCP).
*
- * \return Standard.
+ * This opens a passive socket of given layer4 type, sets the resulting file
+ * descriptor to nonblocking mode and adds it to the close on fork list.
+ *
+ * Errors are logged but otherwise ignored.
*/
-int generic_com_on(struct sender_status *ss, unsigned protocol)
+void generic_com_on(struct sender_status *ss, unsigned protocol)
{
int fd, ret;
if (ss->listen_fd >= 0)
- return 1;
+ return;
ret = para_listen_simple(protocol, ss->port);
- if (ret < 0)
- return ret;
+ if (ret < 0) {
+ PARA_ERROR_LOG("could not listen on port %d: %s\n", ss->port,
+ para_strerror(-ret));
+ return;
+ }
fd = ret;
ret = mark_fd_nonblocking(fd);
if (ret < 0) {
+ PARA_ERROR_LOG("could not set %s socket fd for port %d to "
+ "nonblocking mode: %s\n",
+ protocol == IPPROTO_TCP? "TCP" : "DCCP", ss->port,
+ para_strerror(-ret));
close(fd);
- return ret;
+ return;
}
add_close_on_fork_list(fd);
- ss->listen_fd = ret;
- return 1;
+ ss->listen_fd = fd;
+ return;
}
/**