engine: server: add sv_autosave cvar

* a1ba: added FCVAR_PRIVILEGED just in case

engine/server/server.h

@@ -438,6 +438,7 @@ extern convar_t		sv_uploadmax;
 extern convar_t		sv_trace_messages;
 extern convar_t		sv_enttools_enable;
 extern convar_t		sv_enttools_maxfire;
+extern convar_t		sv_autosave;
 extern convar_t		deathmatch;
 extern convar_t		hostname;
 extern convar_t		skill;

engine/server/sv_cmds.c

@@ -502,6 +502,7 @@ void SV_AutoSave_f( void )
 		return;
 	}
 
+	if( Cvar_VariableInteger( "sv_autosave" ) )
 		SV_SaveGame( "autosave" );
 }
 

engine/server/sv_main.c

@@ -60,6 +60,7 @@ CVAR_DEFINE_AUTO( sv_log_singleplayer, "0", FCVAR_ARCHIVE, "allows logging in si
 CVAR_DEFINE_AUTO( sv_log_onefile, "0", FCVAR_ARCHIVE, "logs server information to only one file" );
 CVAR_DEFINE_AUTO( sv_trace_messages, "0", FCVAR_LATCH, "enable server usermessages tracing (good for developers)" );
 CVAR_DEFINE_AUTO( sv_master_response_timeout, "4", FCVAR_ARCHIVE, "master server heartbeat response timeout in seconds" );
+CVAR_DEFINE_AUTO( sv_autosave, "1", FCVAR_ARCHIVE|FCVAR_SERVER|FCVAR_PRIVILEGED, "enable autosaving" );
 
 // game-related cvars
 CVAR_DEFINE_AUTO( mapcyclefile, "mapcycle.txt", 0, "name of multiplayer map cycle configuration file" );
@@ -967,6 +968,7 @@ void SV_Init( void )
 	Cvar_RegisterVariable( &sv_master_response_timeout );
 
 	Cvar_RegisterVariable( &sv_background_freeze );
+	Cvar_RegisterVariable( &sv_autosave );
 
 	Cvar_RegisterVariable( &mapcyclefile );
 	Cvar_RegisterVariable( &motdfile );