[evolution-groupwise] Prefer g_seekable_seek() over camel_stream_reset().

[Matthew Barnes <mbarnes src gnome org>]

commit 29f5d16b64219fca6e20310df0c94caeac6b88fc
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Jul 5 08:06:07 2011 -0400

    Prefer g_seekable_seek() over camel_stream_reset().
    
    When a stream is obviously a file or memory stream (both of which
    implement the GSeekable interface), use g_seekable_seek() instead of
    camel_stream_reset().
    
    This is helping me discover if it's safe to remove camel_stream_reset().
    We want to eventually move to GIO streams, which have no reset method.

 src/camel/camel-groupwise-folder.c |   13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/src/camel/camel-groupwise-folder.c b/src/camel/camel-groupwise-folder.c
index d8e63f7..844b80e 100644
--- a/src/camel/camel-groupwise-folder.c
+++ b/src/camel/camel-groupwise-folder.c
@@ -2657,9 +2657,16 @@ groupwise_folder_get_message_sync (CamelFolder *folder,
 	stream = camel_stream_mem_new ();
 	if (cache_stream) {
 		msg = camel_mime_message_new ();
-		camel_stream_reset (stream, NULL);
-		camel_stream_write_to_stream (cache_stream, stream, cancellable, NULL);
-		camel_stream_reset (stream, NULL);
+
+		g_seekable_seek (
+			G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, NULL);
+
+		camel_stream_write_to_stream (
+			cache_stream, stream, cancellable, NULL);
+
+		g_seekable_seek (
+			G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, NULL);
+
 		if (!camel_data_wrapper_construct_from_stream_sync ((CamelDataWrapper *) msg, stream, cancellable, error)) {
 			if (errno == EINTR) {
 				g_object_unref (msg);