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[link] parameter to set aircraft timeout

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If no messages are received from an aircraft for some time (default 5000ms=5s),
it is regarded as dead/shut_off and no uplink messages will be sent to it anymore.
Use the `-ac_timeout` paramter to set the timeout in ms. Set to a negative number to disable.

See issue #820
This commit is contained in:
Felix Ruess
2015-04-28 17:40:11 +02:00
parent e4c1df3651
commit a0bee87ba8
1 changed files with 9 additions and 4 deletions
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sw/ground_segment/tmtc/link.ml
+9 -4
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@@ -72,6 +72,11 @@ let add_timestamp = ref None
let status_msg_period = ref 1000 (** ms *)
let ping_msg_period = ref 5000 (** ms *)
(* Time (in ms) after which an aircraft is regarded as dead/off if no messages are received.
If an aircraft is not live anymore, no uplink messages are sent.
Set to a negative number to disable this feature.
*)
let dead_aircraft_time_ms = ref 5000
let send_message_over_ivy = fun sender name vs ->
let timestamp =
@@ -106,13 +111,12 @@ type status = {
}
let statuss = Hashtbl.create 3
let dead_aircraft_time_ms = 5000
let initial_status = {
last_rx_byte = 0; last_rx_msg = 0;
rx_byte = 0; rx_msg = 0; rx_err = 0;
tx_msg = 0;
ms_since_last_msg = dead_aircraft_time_ms;
ms_since_last_msg = !dead_aircraft_time_ms;
last_ping = 0.; last_pong = 0.;
udp_peername = None
}
@@ -137,7 +141,7 @@ let status_ping_diff = 500 (* ms *)
let live_aircraft = fun ac_id ->
try
let s = Hashtbl.find statuss ac_id in
s.ms_since_last_msg < dead_aircraft_time_ms
s.ms_since_last_msg < !dead_aircraft_time_ms
with
Not_found -> false
@@ -487,7 +491,8 @@ let () =
"-redlink", Arg.Set red_link, (sprintf "Sets whether the link is a redundant link. Set this flag and the id flag to use multiple links");
"-id", Arg.Set_int link_id, (sprintf "<id> Sets the link id. If multiple links are used, each must have a unique id. Default is %i" !link_id);
"-status_period", Arg.Set_int status_msg_period, (sprintf "<period> Sets the period (in ms) of the LINK_REPORT status message. Default is %i" !status_msg_period);
"-ping_period", Arg.Set_int ping_msg_period, (sprintf "<period> Sets the period (in ms) of the PING message sent to aircrafs. Default is %i" !ping_msg_period)
"-ping_period", Arg.Set_int ping_msg_period, (sprintf "<period> Sets the period (in ms) of the PING message sent to aircrafs. Default is %i" !ping_msg_period);
"-ac_timeout", Arg.Set_int dead_aircraft_time_ms, (sprintf "<time> Sets the time (in ms) after which an aircraft is regarded as dead/off if no messages are received. Default is %i, set to negative to disable." !ping_msg_period)
] in
Arg.parse options (fun _x -> ()) "Usage: ";