new memory buffer based stream.

	* camel/camel-stream-mem.c:
	* camel/camel-stream-mem.h:
	new memory buffer based stream.

	* camel/camel-stream-fs.c (_seek):
	implementation for file system based stream.

	* camel/camel-stream.c (camel_stream_seek):
	new method.

	* camel/camel-stream-fs.c (camel_stream_fs_class_init):
	pass CamelStreamFsClass instead of CamelStreamClass.

svn path=/trunk/; revision=1056

1 files changed, 26 insertions, 1 deletions

diff --git a/camel/camel-stream-fs.c b/camel/camel-stream-fs.c
index 3216f6ffdf..0e006a28f3 100644
--- a/camel/camel-stream-fs.c
+++ b/camel/camel-stream-fs.c
@@ -41,10 +41,11 @@ static void _flush (CamelStream *stream);
 static gint _available (CamelStream *stream);
 static gboolean _eos (CamelStream *stream);
 static void _close (CamelStream *stream);
+static gint _seek (CamelStream *stream, gint offset, CamelStreamSeekPolicy policy);
 
 
 static void
-camel_stream_fs_class_init (CamelStreamClass *camel_stream_fs_class)
+camel_stream_fs_class_init (CamelStreamFsClass *camel_stream_fs_class)
 {
 	CamelStreamClass *camel_stream_class = CAMEL_STREAM_CLASS (camel_stream_fs_class);
 	parent_class = gtk_type_class (gtk_object_get_type ());
@@ -58,6 +59,7 @@ camel_stream_fs_class_init (CamelStreamClass *camel_stream_fs_class)
 	camel_stream_class->available = _available;
 	camel_stream_class->eos = _eos;
 	camel_stream_class->close = _close;
+	camel_stream_class->seek = _seek;
 
 }
 
@@ -249,3 +251,26 @@ _close (CamelStream *stream)
 {
 	close ((CAMEL_STREAM_FS (stream))->fd);
 }
+
+
+static gint
+_seek (CamelStream *stream, gint offset, CamelStreamSeekPolicy policy)
+{
+	int whence;
+	switch  (policy) {
+	case CAMEL_STREAM_SET:
+		whence = SEEK_SET;
+		break;
+	case CAMEL_STREAM_CUR:
+		whence = SEEK_CUR;
+		break;
+	case CAMEL_STREAM_END:
+		whence = SEEK_END;
+		break;
+	default:
+		return -1;
+	}
+		
+		
+	return lseek ((CAMEL_STREAM_FS (stream))->fd, offset, whence);
+}