o Have a default refresh time of 10 seconds.

o Give a tip how to use wget to switch configurations.

README.md

@@ -102,7 +102,8 @@ The files are searched from the most specific to the least specific type.
                        You can supply this option multiple times:
                        you'll get a drop-down select on the HTTP status page.
         -p <port>    : Port to run the HTTP status server on.
-        -r <refresh> : If > 0: seconds between refresh of status page.
+        -r <refresh> : Seconds between refresh of status page.
+	               Default is 10. Switch off with -1
         -g           : Gapless convolving alphabetically adjacent files.
         -D           : Moderate volume Folve debug messages to syslog.
                        Can then also be toggled in the UI.
@@ -123,3 +124,13 @@ status information on a http server; e.g. With `./folve ... -p 17322`
 have a look on
 
   http://localhost:17322/
+
+To manually switch the configuration in use from the command line,
+you can use wget
+
+    wget -q -O/dev/null http://localhost:17322/settings?f=2
+
+The parameter given to `f=` is the configuration in the same sequence you
+supplied on startup, starting to count from 1. Configuration 0 means
+'no filter' (And no, there is no security built in. If you want people from
+messing with the configuration of your folve-daemon, don't use -p).

folve-main.cc

@@ -36,7 +36,7 @@
 // Compilation unit variables to communicate with the fuse callbacks.
 static struct FolveRuntime {
   FolveRuntime() : fs(NULL), mount_point(NULL),
-                   status_port(-1), refresh_time(-1) {}
+                   status_port(-1), refresh_time(10) {}
   FolveFilesystem *fs;
   const char *mount_point;
   int status_port;
@@ -191,13 +191,15 @@ static int usage(const char *prg) {
          "\t               you'll get a drop-down select on the HTTP "
          "status page.\n"
          "\t-p <port>    : Port to run the HTTP status server on.\n"
-         "\t-r <refresh> : If > 0: seconds between refresh of status page.\n"
+         "\t-r <refresh> : Seconds between refresh of status page;\n"
+         "\t               Default is %d seconds; switch off with -1.\n"
          "\t-g           : Gapless convolving alphabetically adjacent files.\n"
          "\t-D           : Moderate volume Folve debug messages to syslog.\n"
          "\t               Can then also be toggled in the UI.\n"
          "\t-f           : Operate in foreground; useful for debugging.\n"
          "\t-o <mnt-opt> : other generic mount parameters passed to fuse.\n"
-         "\t-d           : High volume fuse debug log. Implies -f.\n");
+         "\t-d           : High volume fuse debug log. Implies -f.\n",
+         folve_rt.refresh_time);
   return 1;
 }