afb-xreq: Forbids (un)subscribes after reply

[src/app-framework-binder.git] / include / afb / afb-req-x2.h

diff --git a/include/afb/afb-req-x2.h b/include/afb/afb-req-x2.h
index 4ae1af7..2d4a2f2 100644 (file)
--- a/include/afb/afb-req-x2.h
+++ b/include/afb/afb-req-x2.h
@@ -458,6 +458,8 @@ int afb_req_x2_session_set_LOA(
  * Establishes for the client link identified by 'req' a subscription
  * to the 'event'.
  *
+ * Establishing subscription MUST be called BEFORE replying to the request.
+ *
  * @param req the request
  * @param event the event to subscribe
  *
@@ -476,6 +478,8 @@ int afb_req_x2_subscribe(
  * link identified by 'req'.
  * Returns 0 in case of successful subscription or -1 in case of error.
  *
+ * Revoking subscription MUST be called BEFORE replying to the request.
+ *
  * @param req the request
  * @param event the event to revoke
  *