From 4de9b56725862edf872ae503a3dfb4cf05da9e77 Mon Sep 17 00:00:00 2001
From: John Cupitt <jcupitt@gmail.com>
Date: Wed, 4 Nov 2020 09:28:25 +0000
Subject: [PATCH] flush target at end of write

we were missing end-of-write flushes on four save operations

thanks harukizaemon

see https://github.com/libvips/ruby-vips/issues/256
---
 ChangeLog                    | 1 +
 libvips/foreign/csvsave.c    | 2 ++
 libvips/foreign/matrixsave.c | 2 ++
 libvips/foreign/ppmsave.c    | 2 ++
 libvips/foreign/vipspng.c    | 2 ++
 5 files changed, 9 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 2b6ad980..c2a3a01b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
 - fix out of bounds exif read in heifload
 - fix out of bounds read in tiffload
 - fix tiffsave region shrink mode [imgifty]
+- add missing flushes on write to target [harukizaemon]
 
 6/9/20 started 8.10.2
 - update magicksave/load profile handling [kelilevi]
diff --git a/libvips/foreign/csvsave.c b/libvips/foreign/csvsave.c
index a4178d56..ec4c4d2d 100644
--- a/libvips/foreign/csvsave.c
+++ b/libvips/foreign/csvsave.c
@@ -179,6 +179,8 @@ vips_foreign_save_csv_build( VipsObject *object )
 	if( vips_sink_disc( save->ready, vips_foreign_save_csv_block, csv ) )
 		return( -1 );
 
+	vips_target_finish( csv->target );
+
 	return( 0 );
 }
 
diff --git a/libvips/foreign/matrixsave.c b/libvips/foreign/matrixsave.c
index fd93efba..cc8d7d8b 100644
--- a/libvips/foreign/matrixsave.c
+++ b/libvips/foreign/matrixsave.c
@@ -136,6 +136,8 @@ vips_foreign_save_matrix_build( VipsObject *object )
 		vips_foreign_save_matrix_block, matrix ) )
 		return( -1 );
 
+	vips_target_finish( matrix->target );
+
 	return( 0 );
 }
 
diff --git a/libvips/foreign/ppmsave.c b/libvips/foreign/ppmsave.c
index 39b0320b..912a427e 100644
--- a/libvips/foreign/ppmsave.c
+++ b/libvips/foreign/ppmsave.c
@@ -301,6 +301,8 @@ vips_foreign_save_ppm( VipsForeignSavePpm *ppm, VipsImage *image )
 	if( vips_sink_disc( image, vips_foreign_save_ppm_block, ppm ) )
 		return( -1 );
 
+	vips_target_finish( ppm->target );
+
 	return( 0 );
 }
 
diff --git a/libvips/foreign/vipspng.c b/libvips/foreign/vipspng.c
index 78dd2585..cad03afb 100644
--- a/libvips/foreign/vipspng.c
+++ b/libvips/foreign/vipspng.c
@@ -1192,6 +1192,8 @@ write_vips( Write *write,
 
 	png_write_end( write->pPng, write->pInfo );
 
+	vips_target_finish( write->target );
+
 	return( 0 );
 }