[pygobject/pygobject-3-4] Fix marshalling of GByteArrays

[Martin Pitt <martinpitt src gnome org>]

commit 6b296031e58e07758138242b5b53dda61c0c5976
Author: Martin Pitt <martinpitt gnome org>
Date:   Fri Nov 9 16:02:00 2012 +0100

    Fix marshalling of GByteArrays
    
    In _pygi_marshal_from_py_array(), set the array length after copying the data
    in the GI_TYPE_TAG_UINT8 case (which applies for GByteArrays), otherwise it
    will always come out as zero length.
    
    Cherry-picked from trunk commit b800a69. Do not cherry-pick the test case
    updates as those tests do not yet exist in the 3.4 branch.

 gi/pygi-marshal-from-py.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gi/pygi-marshal-from-py.c b/gi/pygi-marshal-from-py.c
index d0e96db..c20e023 100644
--- a/gi/pygi-marshal-from-py.c
+++ b/gi/pygi-marshal-from-py.c
@@ -930,6 +930,7 @@ _pygi_marshal_from_py_array (PyGIInvokeState   *state,
     if (sequence_cache->item_cache->type_tag == GI_TYPE_TAG_UINT8 &&
         PYGLIB_PyBytes_Check (py_arg)) {
         memcpy(array_->data, PYGLIB_PyBytes_AsString (py_arg), length);
+        array_->len = length;
         if (sequence_cache->is_zero_terminated) {
             /* If array_ has been created with zero_termination, space for the
              * terminator is properly allocated, so we're not off-by-one here. */