Introduce prepare_writer_node().

[paraslash.git] / write_common.c

diff --git a/write_common.c b/write_common.c
index 7c0d952108cdec23a43c3c01cfe33b9b6f37b77b..ff8999f63eb8b67312db89d07688c93b404d05d0 100644 (file)
--- a/write_common.c
+++ b/write_common.c
@@ -303,3 +303,20 @@ void print_writer_helps(int detailed)
                ggo_print_help(&w->help, detailed);
        }
 }
+
+int prepare_writer_node(struct writer_node *wn)
+{
+       struct btr_node *btrn = wn->btrn;
+       size_t iqs;
+
+       if (btr_eof(btrn))
+               return -E_WRITE_COMMON_EOF;
+       iqs = btr_get_input_queue_size(btrn);
+       if (iqs < wn->min_iqs && !btr_no_parent(btrn))
+               return 0;
+       assert(iqs != 0);
+       /* avoid "buffer too small" errors from the decoder */
+       btr_merge(btrn, wn->min_iqs);
+       return 1;
+}
+