[libdmapsharing] Add dmap-utils.c Signed-off-by: W. Michael Petullo <mike flyn org>

[W. Michael Petullo <wmpetullo src gnome org>]

commit a527264f36dbdd9eed474d10cba2265feb7c51de
Author: W. Michael Petullo <mike flyn org>
Date:   Wed Dec 15 16:38:38 2010 -0600

    Add dmap-utils.c
    Signed-off-by: W. Michael Petullo <mike flyn org>

 libdmapsharing/dmap-utils.c |   63 +++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 63 insertions(+), 0 deletions(-)
---
diff --git a/libdmapsharing/dmap-utils.c b/libdmapsharing/dmap-utils.c
new file mode 100644
index 0000000..cf0562a
--- /dev/null
+++ b/libdmapsharing/dmap-utils.c
@@ -0,0 +1,63 @@
+/*
+ * Utility functions used throughout libdmapsharing
+ *
+ * Copyright (C) 2010 W. Michael Petullo <mike flyn org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <string.h>
+
+#include "dmap-utils.h"
+
+#define DMAP_SHARE_CHUNK_SIZE 16384
+
+void
+dmap_write_next_chunk (SoupMessage *message, ChunkData *cd)
+{
+	gssize read_size;
+	GError *error = NULL;
+	gchar *chunk = g_malloc (DMAP_SHARE_CHUNK_SIZE);
+
+	read_size = g_input_stream_read (cd->stream,
+					 chunk,
+					 DMAP_SHARE_CHUNK_SIZE,
+					 NULL,
+					 &error);
+	if (read_size > 0) {
+		soup_message_body_append (message->response_body,
+					  SOUP_MEMORY_TAKE,
+					  chunk,
+					  read_size);
+	} else {
+		if (error != NULL) {
+			g_warning ("Error reading from input stream: %s",
+				   error->message);
+			g_error_free (error);
+		}
+		g_free (chunk);
+		g_debug ("Wrote 0 bytes, sending message complete.");
+		soup_message_body_complete (message->response_body);
+	}
+	soup_server_unpause_message (cd->server, message);
+}
+
+void
+dmap_chunked_message_finished (SoupMessage *message, ChunkData *cd)
+{
+	g_debug ("Finished sending chunked file.");
+	g_input_stream_close (cd->stream, NULL, NULL);
+	g_free (cd);
+}