added TEH_extensions_done()

also: renamed TEH_WIRE_done -> TEH_wire_done

src/exchange/taler-exchange-httpd.c

@@ -1799,7 +1799,8 @@ do_shutdown (void *cls)
   TEH_kyc_proof_cleanup ();
   if (NULL != mhd)
     MHD_stop_daemon (mhd);
-  TEH_WIRE_done ();
+  TEH_wire_done ();
+  TEH_extensions_done ();
   TEH_keys_finished ();
   if (NULL != TEH_plugin)
   {

src/exchange/taler-exchange-httpd_extensions.c

@@ -52,14 +52,12 @@ extension_update_event_cb (void *cls,
   (void) extra_size;
   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
               "Received /management/extensions update event\n");
-  /* TODO !? */
 }
 
 
 enum GNUNET_GenericReturnValue
 TEH_extensions_init ()
 {
-  /* TODO */
   struct GNUNET_DB_EventHeaderP es = {
     .size = htons (sizeof (es)),
     .type = htons (TALER_DBEVENT_EXCHANGE_EXTENSIONS_UPDATED),
@@ -82,7 +80,12 @@ TEH_extensions_init ()
 void
 TEH_extensions_done ()
 {
-  /* TODO!? */
+  if (NULL != extensions_eh)
+  {
+    TEH_plugin->event_listen_cancel (TEH_plugin->cls,
+                                     extensions_eh);
+    extensions_eh = NULL;
+  }
 }
 
 

src/exchange/taler-exchange-httpd_extensions.h

@@ -34,6 +34,11 @@
 enum GNUNET_GenericReturnValue
 TEH_extensions_init (void);
 
+/**
+ * Terminate the extension subsystem
+ */
+void
+TEH_extensions_done (void);
 
 /**
  * Something changed in the database. Rebuild the extension state metadata.

src/exchange/taler-exchange-httpd_wire.c

@@ -130,7 +130,7 @@ TEH_wire_init ()
 
 
 void
-TEH_WIRE_done ()
+TEH_wire_done ()
 {
   if (NULL != wire_state)
   {

src/exchange/taler-exchange-httpd_wire.h

@@ -30,7 +30,7 @@
  * Clean up wire subsystem.
  */
 void
-TEH_WIRE_done (void);
+TEH_wire_done (void);
 
 
 /**