[ostree] ostree-metalink: use _ostree_fetcher_contents_membuf_sync

[Colin Walters <walters src gnome org>]

commit 5546c4d2fc5f804854c4ff3e1d31b7c951e26825
Author: Giuseppe Scrivano <gscrivan redhat com>
Date:   Thu Nov 6 13:37:30 2014 +0100

    ostree-metalink: use _ostree_fetcher_contents_membuf_sync
    
    Signed-off-by: Giuseppe Scrivano <gscrivan redhat com>

 src/libostree/ostree-metalink.c |  103 ++++++++++++++------------------------
 1 files changed, 38 insertions(+), 65 deletions(-)
---
diff --git a/src/libostree/ostree-metalink.c b/src/libostree/ostree-metalink.c
index ee798fa..7e37c8c 100644
--- a/src/libostree/ostree-metalink.c
+++ b/src/libostree/ostree-metalink.c
@@ -579,67 +579,6 @@ start_target_request_phase (OstreeMetalinkRequest      *self,
 }
 
 static void
-on_metalink_bytes_read (GObject           *src,
-                        GAsyncResult      *result,
-                        gpointer           user_data)
-{
-  GError *local_error = NULL;
-  GTask *task = user_data;
-  OstreeMetalinkRequest *self = g_task_get_task_data (task);
-  gs_unref_bytes GBytes *bytes = NULL;
-  gsize len;
-  const guint8 *data;
-
-  bytes = g_input_stream_read_bytes_finish ((GInputStream*)src,
-                                            result, &local_error);
-  if (!bytes)
-    goto out;
-  
-  data = g_bytes_get_data (bytes, &len);
-
-  if (len == 0)
-    {
-      if (!start_target_request_phase (self, &local_error))
-        goto out;
-    }
-  else
-    {
-      if (!g_markup_parse_context_parse (self->parser, (const char*)data, len, &local_error))
-        goto out;
-
-      g_input_stream_read_bytes_async ((GInputStream*)src, 8192, G_PRIORITY_DEFAULT,
-                                       g_task_get_cancellable (task),
-                                       on_metalink_bytes_read, task);
-    }
-
- out:
-  if (local_error)
-    g_task_return_error (task, local_error);
-}
-
-static void
-on_retrieved_metalink (GObject           *src,
-                       GAsyncResult      *result,
-                       gpointer           user_data)
-{
-  GError *local_error = NULL;
-  GTask *task = user_data;
-  gs_unref_object GInputStream *metalink_stream = NULL;
-
-  metalink_stream = _ostree_fetcher_stream_uri_finish ((OstreeFetcher*)src, result, &local_error);
-  if (!metalink_stream)
-    goto out;
-
-  g_input_stream_read_bytes_async (metalink_stream, 8192, G_PRIORITY_DEFAULT,
-                                   g_task_get_cancellable (task),
-                                   on_metalink_bytes_read, task);
-
- out:
-  if (local_error)
-    g_task_return_error (task, local_error);
-}
-
-static void
 ostree_metalink_request_unref (gpointer data)
 {
   OstreeMetalinkRequest  *request = data;
@@ -706,6 +645,24 @@ on_metalink_fetched (GObject          *src,
   g_main_loop_quit (data->loop);
 }
 
+static gboolean
+on_metalink_bytes_read (OstreeMetalinkRequest *self,
+                        OstreeMetalinkRequest *request,
+                        FetchMetalinkSyncData *sync_data,
+                        GBytes *bytes,
+                        GError **error)
+{
+  gsize len;
+  const guint8 *data = g_bytes_get_data (bytes, &len);
+  if (!g_markup_parse_context_parse (self->parser, (const char*)data, len, error))
+    return FALSE;
+
+  if (!start_target_request_phase (self, error))
+    return FALSE;
+
+  return TRUE;
+}
+
 gboolean
 _ostree_metalink_request_sync (OstreeMetalink        *self,
                                GMainLoop             *loop,
@@ -718,6 +675,7 @@ _ostree_metalink_request_sync (OstreeMetalink        *self,
   OstreeMetalinkRequest *request = g_new0 (OstreeMetalinkRequest, 1);
   FetchMetalinkSyncData data = { 0, };
   GTask *task = g_task_new (self, cancellable, on_metalink_fetched, &data);
+  GBytes *out_contents = NULL;
 
   data.out_target_uri = out_target_uri;
   data.out_data = out_data;
@@ -732,10 +690,25 @@ _ostree_metalink_request_sync (OstreeMetalink        *self,
   request->parser = g_markup_parse_context_new (&metalink_parser, G_MARKUP_PREFIX_ERROR_POSITION, task, 
NULL);
 
   g_task_set_task_data (task, request, ostree_metalink_request_unref);
-  _ostree_fetcher_stream_uri_async (self->fetcher, self->uri,
-                                    self->max_size, cancellable,
-                                    on_retrieved_metalink, task);
-  g_main_loop_run (loop);
+
+  if (! _ostree_fetcher_contents_membuf_sync (self->fetcher,
+                                              self->uri,
+                                              FALSE,
+                                              FALSE,
+                                              &out_contents,
+                                              loop,
+                                              NULL,
+                                              self->max_size,
+                                              cancellable,
+                                              error))
+    goto out;
+
+  if (! on_metalink_bytes_read (request, request, &data, out_contents, error))
+    goto out;
+
+  g_main_loop_run (data.loop);
+
+ out:
   return data.success;
 }