change plugin functions to support async code

1 files changed, 49 insertions, 24 deletions

diff --git a/src/escrow/plugin_escrow_gns.c b/src/escrow/plugin_escrow_gns.c
index f8e509651..9e6bbda57 100644
--- a/src/escrow/plugin_escrow_gns.c
+++ b/src/escrow/plugin_escrow_gns.c
@@ -50,25 +50,32 @@ struct EscrowPluginHandle ph;
 /**
  * Start the GNS escrow of the key
  * 
+ * @param h the handle for the escrow component
  * @param ego the identity ego containing the private key
- * @return the escrow anchor needed to restore the key
+ * @param cb function to call with the escrow anchor on completion
+ * @param cb_cls closure for @a cb
  */
-void *
-start_gns_key_escrow (const struct GNUNET_IDENTITY_Ego *ego)
+void
+start_gns_key_escrow (struct GNUNET_ESCROW_Handle *h,
+                      const struct GNUNET_IDENTITY_Ego *ego,
+                      GNUNET_ESCROW_AnchorContinuation cb,
+                      void *cb_cls)
 {
   const struct GNUNET_CRYPTO_EcdsaPrivateKey *pk;
   sss_Keyshare keyshares;
-  void *escrowAnchor;
+  struct GNUNET_ESCROW_Anchor *anchor;
+  int anchorDataSize;
 
   if (NULL == ego)
   {
-    return GNUNET_NO;
+    cb (cb_cls, NULL);
+    return;
   }
   pk = GNUNET_IDENTITY_ego_get_private_key (ego);
 
   // split the private key (SSS)
-  sss_create_keyshares(keyshares,
-                       pk,
+  sss_create_keyshares(&keyshares,
+                       (const uint8_t *)pk,
                        GNUNET_ESCROW_GNS_NumberOfShares,
                        GNUNET_ESCROW_GNS_ShareThreshold);
 
@@ -78,55 +85,73 @@ start_gns_key_escrow (const struct GNUNET_IDENTITY_Ego *ego)
 
 
   // TODO: implement
-  return escrowAnchor;
+  anchorDataSize = 0; // TODO!
+  anchor = GNUNET_malloc (sizeof (struct GNUNET_ESCROW_Anchor) + anchorDataSize);
+  cb (cb_cls, anchor);
 }
 
 
 /**
  * Renew the GNS escrow of the key
  * 
+ * @param h the handle for the escrow component
  * @param escrowAnchor the the escrow anchor returned by the start method
- * @return the escrow anchor needed to restore the key
+ * @param cb function to call with the (new) escrow anchor on completion
+ * @param cb_cls closure for @a cb
  */
-void *
-renew_gns_key_escrow (void *escrowAnchor)
+void
+renew_gns_key_escrow (struct GNUNET_ESCROW_Handle *h,
+                      struct GNUNET_ESCROW_Anchor *escrowAnchor,
+                      GNUNET_ESCROW_AnchorContinuation cb,
+                      void *cb_cls)
 {
   // TODO: implement
-  return NULL;
+  cb (cb_cls, NULL);
 }
 
 
 /**
  * Verify the GNS escrow of the key
  * 
+ * @param h the handle for the escrow component
  * @param ego the identity ego containing the private key
  * @param escrowAnchor the escrow anchor needed to restore the key
- * @return GNUNET_ESCROW_VALID if the escrow could successfully by restored,
- *         GNUNET_ESCROW_RENEW_NEEDED if the escrow needs to be renewed,
- *         GNUNET_ESCROW_INVALID otherwise
+ * @param cb function to call with the verification result on completion, i.e.
+ *  GNUNET_ESCROW_VALID if the escrow could successfully by restored,
+ *  GNUNET_ESCROW_RENEW_NEEDED if the escrow needs to be renewed,
+ *  GNUNET_ESCROW_INVALID otherwise
+ * @param cb_cls closure for @a cb
  */
-int
-verify_gns_key_escrow (const struct GNUNET_IDENTITY_Ego *ego,
-                       void *escrowAnchor)
+void
+verify_gns_key_escrow (struct GNUNET_ESCROW_Handle *h,
+                       const struct GNUNET_IDENTITY_Ego *ego,
+                       struct GNUNET_ESCROW_Anchor *escrowAnchor,
+                       GNUNET_ESCROW_VerifyContinuation cb,
+                       void *cb_cls)
 {
   // TODO: implement
-  return GNUNET_ESCROW_INVALID;
+  cb (cb_cls, GNUNET_ESCROW_INVALID);
 }
 
 
 /**
  * Restore the key from GNS escrow
  * 
+ * @param h the handle for the escrow component
  * @param escrowAnchor the escrow anchor needed to restore the key
  * @param egoName the name of the ego to restore
- * @return the identity ego containing the private key
+ * @param cb function to call with the restored ego on completion
+ * @param cb_cls closure for @a cb
  */
-const struct GNUNET_IDENTITY_Ego *
-restore_gns_key_escrow (void *escrowAnchor,
-                        char *egoName)
+void
+restore_gns_key_escrow (struct GNUNET_ESCROW_Handle *h,
+                        struct GNUNET_ESCROW_Anchor *escrowAnchor,
+                        char *egoName,
+                        GNUNET_ESCROW_EgoContinuation cb,
+                        void *cb_cls)
 {
   // TODO: implement
-  return NULL;
+  cb (cb_cls, NULL);
 }