[glib/buffer] Add g_buffer_new_take_data()

[Ryan Lortie <ryanl src gnome org>]

commit bc45d202351291e338ba6576ae0862aac32924ce
Author: Ryan Lortie <desrt desrt ca>
Date:   Fri Feb 5 21:11:58 2010 -0500

    Add g_buffer_new_take_data()

 glib/gbuffer.c |   31 +++++++++++++++++++++++++++++++
 glib/gbuffer.h |    3 +++
 2 files changed, 34 insertions(+), 0 deletions(-)
---
diff --git a/glib/gbuffer.c b/glib/gbuffer.c
index 7eec6e6..4dc5d24 100644
--- a/glib/gbuffer.c
+++ b/glib/gbuffer.c
@@ -68,6 +68,37 @@ g_buffer_new_from_data (gconstpointer data,
   return buffer;
 }
 
+/* < private >
+ * g_buffer_new_take_data:
+ * @data: the data to be used for the buffer
+ * @size: the size of @data
+ * returns: a reference to a new #GBuffer
+ *
+ * Creates a new #GBuffer from @data.
+ *
+ * @data must have been created by a call to g_malloc(), g_malloc0() or
+ * g_realloc() or by one of the many functions that wrap these calls
+ * (such as g_new(), g_strdup(), etc).
+ *
+ * After this call, @data belongs to the buffer and may no longer be
+ * accessed by the caller.  g_free() will be called on @data at an
+ * unspecified point (perhaps before this call returns).
+ */
+GBuffer *
+g_buffer_new_take_data (gpointer data,
+                        gsize    size)
+{
+  GBuffer *buffer;
+
+  buffer = g_slice_new (GBuffer);
+  buffer->data = data;
+  buffer->size = size;
+  buffer->free_func = g_buffer_free_gfree;
+  buffer->ref_count = 1;
+
+  return buffer;
+}
+
 static void
 g_buffer_free (GBuffer *buffer)
 {
diff --git a/glib/gbuffer.h b/glib/gbuffer.h
index 9107238..405904b 100644
--- a/glib/gbuffer.h
+++ b/glib/gbuffer.h
@@ -70,6 +70,9 @@ G_GNUC_INTERNAL
 GBuffer *       g_buffer_new_from_data          (gconstpointer   data,
                                                  gsize           size);
 G_GNUC_INTERNAL
+GBuffer *       g_buffer_new_take_data          (gpointer        data,
+                                                 gsize           size);
+G_GNUC_INTERNAL
 GBuffer *       g_buffer_new_from_static_data   (gconstpointer   data,
                                                  gsize           size);
 G_GNUC_INTERNAL