Add a periodic event to become dormant.

This event makes us become dormant if we have seen no activity in a
long time.

Note that being any kind of a server, or running an onion service,
always counts as being active.

Note that right now, just having an open stream that Tor
did not open on its own (for a directory request) counts as "being
active", so if you have an idle ssh connection, that will keep Tor
from becoming dormant.

Many of the features here should become configurable; I'd like
feedback on which.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core/mainloop/connection.h b/src/core/mainloop/connection.h
index b569bb038e..9f1a23c6f2 100644
--- a/src/core/mainloop/connection.h
+++ b/src/core/mainloop/connection.h
@@ -240,6 +240,7 @@ size_t connection_get_outbuf_len(connection_t *conn);
 connection_t *connection_get_by_global_id(uint64_t id);
 
 connection_t *connection_get_by_type(int type);
+connection_t *connection_get_by_type_nonlinked(int type);
 MOCK_DECL(connection_t *,connection_get_by_type_addr_port_purpose,(int type,
                                                   const tor_addr_t *addr,
                                                   uint16_t port, int purpose));