-move DB-agnostic types to GNUNET_DB

1 files changed, 43 insertions, 0 deletions

diff --git a/src/include/gnunet_db_lib.h b/src/include/gnunet_db_lib.h
index 85ad13e31..63c45112d 100644
--- a/src/include/gnunet_db_lib.h
+++ b/src/include/gnunet_db_lib.h
@@ -61,4 +61,47 @@ enum GNUNET_DB_QueryStatus
                                            that returned more than one result. */
 };
 
+
+/**
+ * Handle for an active LISTENer to a database.
+ */
+struct GNUNET_DB_EventHandler;
+
+/**
+ * Function called on events received from Postgres.
+ *
+ * @param cls closure
+ * @param extra additional event data provided
+ * @param extra_size number of bytes in @a extra
+ */
+typedef void
+(*GNUNET_DB_EventCallback)(void *cls,
+                           const void *extra,
+                           size_t extra_size);
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+
+/**
+ * Header of a structure that describes an
+ * event channel we may subscribe to or notify on.
+ */
+struct GNUNET_DB_EventHeaderP
+{
+  /**
+   * The length of the struct (in bytes, including the length field itself),
+   * in big-endian format.
+   */
+  uint16_t size GNUNET_PACKED;
+
+  /**
+   * The type of the message (GNUNET_DB_EVENT_TYPE_XXXX), in big-endian format.
+   */
+  uint16_t type GNUNET_PACKED;
+
+};
+
+GNUNET_NETWORK_STRUCT_END
+
+
 #endif