[glib/glib-2-42] garray: initialize allocated size in g_byte_array_new_take()

[Matthias Clasen <matthiasc src gnome org>]

commit bf44b592c8c6d33b35c03015ac6ff56c1992222b
Author: Aleksander Morgado <aleksander aleksander es>
Date:   Wed Oct 8 20:37:42 2014 +0200

    garray: initialize allocated size in g_byte_array_new_take()
    
    Internal allocation size (array->alloc) was being kept to 0 when a new
    GByteArray was created from an already existing heap-allocated buffer.
    
    Among other things, this was making g_byte_array_set_size() fully clear all
    the buffer contents (not just the newly allocated memory) when
    G_DEBUG=gc-friendly was being used...
    
      if (G_UNLIKELY (g_mem_gc_friendly))
        memset (array->data + array->alloc, 0, want_alloc - array->alloc);
    
    https://bugzilla.gnome.org/show_bug.cgi?id=738170

 glib/garray.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/glib/garray.c b/glib/garray.c
index 14e046f..8a94720 100644
--- a/glib/garray.c
+++ b/glib/garray.c
@@ -1589,6 +1589,7 @@ g_byte_array_new_take (guint8 *data,
 
   real->data = data;
   real->len = len;
+  real->alloc = len;
 
   return array;
 }