Adding ping_ack_timeout in mod_opt_type configuration

Avoid the error output

```
2015-11-18 12:02:40.297 [error] <0.37.0>@gen_mod:validate_opts:250 unknown option 'ping_ack_timeout' for module 'mod_ping' will be likely ignored, available options are: 'iqdisc', 'ping_interval', 'send_pings', 'timeout_action'
2015-11-18 12:02:40.334 [error] <0.37.0>@gen_mod:validate_opts:250 unknown option 'ping_ack_timeout' for module 'mod_ping' will be likely ignored, available options are: 'iqdisc', 'ping_interval', 'send_pings', 'timeout_action'
```

In setting mod_opt_type default, ping_ack_timeout parameter was added.

diff --git a/src/mod_ping.erl b/src/mod_ping.erl
index 9964daf03744a3e48bdc9ea61979573d863f15fc..54aa6086585331601ea807b86f4816cfd458a103 100644 (file)
--- a/src/mod_ping.erl
+++ b/src/mod_ping.erl
@@ -255,6 +255,8 @@ cancel_timer(TRef) ->
 mod_opt_type(iqdisc) -> fun gen_iq_handler:check_type/1;
 mod_opt_type(ping_interval) ->
     fun (I) when is_integer(I), I > 0 -> I end;
+mod_opt_type(ping_ack_timeout) ->
+    fun (I) when is_integer(I), I > 0 -> I end;
 mod_opt_type(send_pings) ->
     fun (B) when is_boolean(B) -> B end;
 mod_opt_type(timeout_action) ->
@@ -262,4 +264,4 @@ mod_opt_type(timeout_action) ->
        (kill) -> kill
     end;
 mod_opt_type(_) ->
-    [iqdisc, ping_interval, send_pings, timeout_action].
+    [iqdisc, ping_interval, ping_ack_timeout, send_pings, timeout_action].