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, 8 insertions, 1 deletions

diff --git a/camel/camel-stream.h b/camel/camel-stream.h
index 9818e492fb..4b4ea50b5b 100644
--- a/camel/camel-stream.h
+++ b/camel/camel-stream.h
@@ -38,7 +38,12 @@ extern "C" {
 #define CAMEL_STREAM_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), CAMEL_STREAM_TYPE, CamelStreamClass))
 #define IS_CAMEL_STREAM(o)    (GTK_CHECK_TYPE((o), CAMEL_STREAM_TYPE))
 
-
+typedef enum
+{
+	CAMEL_STREAM_SET,
+	CAMEL_STREAM_CUR,
+	CAMEL_STREAM_END
+} CamelStreamSeekPolicy;
 
 typedef struct 
 {
@@ -58,6 +63,7 @@ typedef struct {
 	gint  (*available) (CamelStream *stream);
 	gboolean  (*eos)   (CamelStream *stream);
 	void  (*close)     (CamelStream *stream);
+	gint (*seek)       (CamelStream *stream, gint offset, CamelStreamSeekPolicy policy);
 } CamelStreamClass;
 
 
@@ -73,6 +79,7 @@ void     camel_stream_flush     (CamelStream *stream);
 gint     camel_stream_available (CamelStream *stream);
 gboolean camel_stream_eos       (CamelStream *stream);
 void     camel_stream_close     (CamelStream *stream);
+gint     camel_stream_seek      (CamelStream *stream, gint offset, CamelStreamSeekPolicy policy);
 
 /* utility macros and funcs */
 #define camel_stream_write_string(stream, string) camel_stream_write ((stream), (string), strlen (string))