From 04feec359f5d007a5be33d80b4a72c485789005c Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Sat, 18 Apr 2015 17:46:29 +0100
Subject: [PATCH] rewind images after write

after sinkdisc or sinkmemory, we need to rewind the image we wrote to so
that subsequent reads get the written image and don't regenerate it
---
 libvips/iofuncs/generate.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libvips/iofuncs/generate.c b/libvips/iofuncs/generate.c
index 826f1b62..fe61ee9a 100644
--- a/libvips/iofuncs/generate.c
+++ b/libvips/iofuncs/generate.c
@@ -741,7 +741,12 @@ vips_image_generate( VipsImage *image,
                  */
                 if( res )
                         return( -1 );
- 
+
+		/* We've written to image ... rewind it ready for reading.
+		 */
+		if( vips_image_pio_input( image ) )
+			return( -1 ); 
+
                 break;
  
         default: