Add keepalive advanced preference.

data/advanced_preferences.cfg

@@ -71,15 +71,6 @@
     default=yes
 [/advanced_preference]
 
-#[advanced_preference]
-#    field=dummy_slider
-#    name="Dummy Slider"
-#    type=int
-#    default=42
-#    min=0
-#    max=50
-#[/advanced_preference]
-
 [advanced_preference]
     field=chat_message_aging
     name= _ "Chat message aging"
@@ -160,5 +151,13 @@
     default=no
 [/advanced_preference]
 
-#ifdef __UNUSED__
-#endif
+[advanced_preference]
+    field=keepalive_timeout
+    name= _ "Server disconnect timeout"
+    description= _ "The amount of time in seconds before a disconnect is detected. If currently logged into the multiplayer server, you must log out and then log back in for this to take effect."
+    type=int
+    default=10
+    min=10
+    max=300
+    step=5
+[/advanced_preference]

src/preferences/general.cpp

@@ -472,6 +472,16 @@ int font_scaled(int size)
 	return (size * font_scaling()) / 100;
 }
 
+int keepalive_timeout()
+{
+	return prefs["keepalive_timeout"].to_int(10);
+}
+
+void keepalive_timeout(int seconds)
+{
+	prefs["keepalive_timeout"] = std::abs(seconds);
+}
+
 bool idle_anim()
 {
 	return  get("idle_anim", true);

src/preferences/general.hpp

@@ -91,6 +91,9 @@ namespace preferences {
 	void set_font_scaling(int scale);
 	int font_scaled(int size);
 
+	int keepalive_timeout();
+	void keepalive_timeout(int seconds);
+
 	bool idle_anim();
 	void _set_idle_anim(const bool ison);
 

src/wesnothd_connection.cpp

@@ -19,6 +19,7 @@
 
 #include "gettext.hpp"
 #include "log.hpp"
+#include "preferences/general.hpp"
 #include "serialization/parser.hpp"
 #include "tls_root_store.hpp"
 
@@ -161,12 +162,12 @@ void wesnothd_connection::handle_connect(const boost::system::error_code& ec, en
 }
 
 // worker thread
-// TODO: have timeout set via advanced preferences
 void wesnothd_connection::handshake()
 {
 	MPTEST_LOG;
 
-	set_keepalive(10);
+	DBG_NW << "Connecting with keepalive of: " << preferences::keepalive_timeout();
+	set_keepalive(preferences::keepalive_timeout());
 
 	static const uint32_t handshake = 0;
 	static const uint32_t tls_handshake = htonl(uint32_t(1));