catch CTRL-C and save maps before quitting

diff --git a/helm/http_getter/http_getter.ml b/helm/http_getter/http_getter.ml
index 0644fcc7d11000003aa8808c770cdebc1bf083ee..7eb8deae4998047b59b6adb181a0488e143ed194 100644 (file)
--- a/helm/http_getter/http_getter.ml
+++ b/helm/http_getter/http_getter.ml
@@ -83,6 +83,7 @@ let xml_map = new Http_getter_map.map Http_getter_env.xml_dbm in
 let rdf_map = new Http_getter_map.map Http_getter_env.rdf_dbm in
 let xsl_map = new Http_getter_map.map Http_getter_env.xsl_dbm in
 
+let save_maps () = xml_map#close; rdf_map#close; xsl_map#close in
 let map_of_uri = function
   | uri when is_xml_uri uri -> xml_map
   | uri when is_rdf_uri uri -> rdf_map
@@ -361,7 +362,8 @@ let callback (req: Http_types.request) outchan =
     | "/getempty" ->
         Http_daemon.respond ~body:Http_getter_const.empty_xml outchan
     | invalid_request ->
-        Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan)
+        Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
+    debug_print "Done!"
   with
   | Http_types.Param_not_found attr_name ->
       return_400 (sprintf "Parameter '%s' is missing" attr_name) outchan
@@ -377,6 +379,10 @@ in
 Http_getter_env.dump_env ();
 flush stdout;
 Unix.putenv "http_proxy" "";
-Http_daemon.start'
-  ~timeout:None ~port:Http_getter_env.port ~mode:`Thread callback
+Sys.catch_break true;
+try
+  Http_daemon.start'
+    ~timeout:None ~port:Http_getter_env.port ~mode:`Thread callback
+with Sys.Break ->
+  save_maps ()