lib: Update struct istream comments

diff --git a/src/lib/istream.h b/src/lib/istream.h
index d39ba04bdeb7c921073095be319aba94995b8f71..e6ea15561587c96707dcacbb59df93b57a0e4358 100644 (file)
--- a/src/lib/istream.h
+++ b/src/lib/istream.h
@@ -16,6 +16,8 @@ struct istream {
           EIO     - Internal error. Retrying may work, but it may also be
                     because of a misconfiguration.
           EINVAL  - Stream is corrupted.
+
+          If stream_errno != 0, eof==TRUE as well.
        */
        int stream_errno;
 
@@ -25,8 +27,9 @@ struct istream {
        bool readable_fd:1; /* fd can be read directly if necessary
                                       (for sendfile()) */
        bool seekable:1; /* we can seek() backwards */
-       bool eof:1; /* read() has reached to end of file
-                              (but may still be data available in buffer) */
+       /* read() has reached to end of file (but there may still be data
+          available in buffer) or stream_errno != 0 */
+       bool eof:1;
 
        struct istream_private *real_stream;
 };