libplugin: Add primitive to serialize channel_hint to JSON

Author: cdecker

plugins/libplugin-pay.c

@@ -387,6 +387,16 @@ void payment_start(struct payment *p)
 	payment_start_at_blockheight(p, INVALID_BLOCKHEIGHT);
 }
 
+static void channel_hint_to_json(const char *name, const struct channel_hint *hint, struct json_stream *dest)
+{
+	json_object_start(dest, name);
+	json_add_u32(dest, "timestamp", hint->timestamp);
+	json_add_short_channel_id_dir(dest, "scid", hint->scid);
+	json_add_amount_msat(dest, "capacity_msat", hint->estimated_capacity);
+	json_add_bool(dest, "enabled", hint->enabled);
+	json_object_end(dest);
+}
+
 /**
  * Notify subscribers of the `channel_hint` topic about a changed hint
  *
@@ -406,7 +416,7 @@ static void channel_hint_notify(struct plugin *plugin,
 	    plugin_notification_start(plugin, "channel_hint_update");
 
 	/* The timestamp used to decay the observation over time. */
-	json_add_u32(js, "timestamp", hint->timestamp);
+	channel_hint_to_json("channel_hint", hint, js);
 	plugin_notification_end(plugin, js);
 }
 

plugins/test/run-route-calc.c

@@ -81,6 +81,10 @@ void json_add_amount_msat(struct json_stream *result UNNEEDED,
 			  struct amount_msat msat)
 
 { fprintf(stderr, "json_add_amount_msat called!\n"); abort(); }
+/* Generated stub for json_add_bool */
+void json_add_bool(struct json_stream *result UNNEEDED, const char *fieldname UNNEEDED,
+		   bool value UNNEEDED)
+{ fprintf(stderr, "json_add_bool called!\n"); abort(); }
 /* Generated stub for json_add_hex_talarr */
 void json_add_hex_talarr(struct json_stream *result UNNEEDED,
 			 const char *fieldname UNNEEDED,
@@ -116,6 +120,11 @@ void json_add_short_channel_id(struct json_stream *response UNNEEDED,
 			       const char *fieldname UNNEEDED,
 			       struct short_channel_id id UNNEEDED)
 { fprintf(stderr, "json_add_short_channel_id called!\n"); abort(); }
+/* Generated stub for json_add_short_channel_id_dir */
+void json_add_short_channel_id_dir(struct json_stream *response UNNEEDED,
+				   const char *fieldname UNNEEDED,
+				   struct short_channel_id_dir idd UNNEEDED)
+{ fprintf(stderr, "json_add_short_channel_id_dir called!\n"); abort(); }
 /* Generated stub for json_add_string */
 void json_add_string(struct json_stream *js UNNEEDED,
 		     const char *fieldname UNNEEDED,

plugins/test/run-route-overlong.c

@@ -78,6 +78,10 @@ void json_add_amount_msat(struct json_stream *result UNNEEDED,
 			  struct amount_msat msat)
 
 { fprintf(stderr, "json_add_amount_msat called!\n"); abort(); }
+/* Generated stub for json_add_bool */
+void json_add_bool(struct json_stream *result UNNEEDED, const char *fieldname UNNEEDED,
+		   bool value UNNEEDED)
+{ fprintf(stderr, "json_add_bool called!\n"); abort(); }
 /* Generated stub for json_add_hex_talarr */
 void json_add_hex_talarr(struct json_stream *result UNNEEDED,
 			 const char *fieldname UNNEEDED,
@@ -113,6 +117,11 @@ void json_add_short_channel_id(struct json_stream *response UNNEEDED,
 			       const char *fieldname UNNEEDED,
 			       struct short_channel_id id UNNEEDED)
 { fprintf(stderr, "json_add_short_channel_id called!\n"); abort(); }
+/* Generated stub for json_add_short_channel_id_dir */
+void json_add_short_channel_id_dir(struct json_stream *response UNNEEDED,
+				   const char *fieldname UNNEEDED,
+				   struct short_channel_id_dir idd UNNEEDED)
+{ fprintf(stderr, "json_add_short_channel_id_dir called!\n"); abort(); }
 /* Generated stub for json_add_string */
 void json_add_string(struct json_stream *js UNNEEDED,
 		     const char *fieldname UNNEEDED,