+/*********************************************************************
+ *
+ * Function : close_unusable_connections
+ *
+ * Description : Closes remembered connections that have timed
+ * out or have been closed on the other side.
+ *
+ * Parameters : none
+ *
+ * Returns : void
+ *
+ *********************************************************************/
+static void close_unusable_connections(void)
+{
+ unsigned int slot = 0;
+
+ for (slot = 0; slot < SZ(reusable_connection); slot++)
+ {
+ if (!reusable_connection[slot].in_use
+ && (JB_INVALID_SOCKET != reusable_connection[slot].sfd))
+ {
+ time_t time_open = time(NULL) - reusable_connection[slot].timestamp;
+
+ if (CONNECTION_KEEP_ALIVE_TIMEOUT < time_open)
+ {
+ log_error(LOG_LEVEL_CONNECT,
+ "The connection to %s:%d in slot %d timed out. Closing.",
+ reusable_connection[slot].host, reusable_connection[slot].port,
+ slot);
+ close_socket(reusable_connection[slot].sfd);
+ mark_connection_closed(&reusable_connection[slot]);
+ continue;
+ }
+
+ if (!socket_is_still_usable(reusable_connection[slot].sfd))
+ {
+ log_error(LOG_LEVEL_CONNECT,
+ "Socket %d for %s:%d in slot %d is no longer usable. Closing.",
+ reusable_connection[slot].sfd, reusable_connection[slot].host,
+ reusable_connection[slot].port, slot);
+ close_socket(reusable_connection[slot].sfd);
+ mark_connection_closed(&reusable_connection[slot]);
+ continue;
+ }
+ }
+ }
+}
+
+