server: Mention data reader life time in Backend documentation

See #172.
emersion · Jan 19, 2022 · f9aa4f4 · f9aa4f4
1 parent 1c322d2
commit f9aa4f4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/backend.go b/backend.go
@@ -76,6 +76,8 @@ type Session interface {
 	// Add recipient for currently processed message.
 	Rcpt(to string) error
 	// Set currently processed message contents and send it.
+	// 
+	// r must be consumed before Data returns.
 	Data(r io.Reader) error
 }