Add data_template_write_to_fh and stream_write_data_template

1 files changed, 13 insertions, 6 deletions

diff --git a/libcrystfel/src/datatemplate.c b/libcrystfel/src/datatemplate.c
index e480779c..c11ec89d 100644
--- a/libcrystfel/src/datatemplate.c
+++ b/libcrystfel/src/datatemplate.c
@@ -2304,14 +2304,10 @@ static const char *str_dim(int dim)
 }
 
 
-int data_template_write_to_file(const DataTemplate *dtempl, const char *filename)
+int data_template_write_to_fh(const DataTemplate *dtempl, FILE *fh)
 {
-	FILE *fh;
 	int i;
 
-	fh = fopen(filename, "w");
-	if ( fh == NULL ) return 1;
-
 	/* Basic top-level parameters */
 	switch ( dtempl->wavelength_unit ) {
 
@@ -2643,11 +2639,22 @@ int data_template_write_to_file(const DataTemplate *dtempl, const char *filename
 		fprintf(fh, "\n");
 	}
 
-	fclose(fh);
 	return 0;
 }
 
 
+int data_template_write_to_file(const DataTemplate *dtempl, const char *filename)
+{
+	FILE *fh;
+	int r;
+	fh = fopen(filename, "w");
+	if ( fh == NULL ) return 1;
+	r = data_template_write_to_fh(dtempl, fh);
+	fclose(fh);
+	return r;
+}
+
+
 static void add_group_info(struct dg_group_info *ginfo, int *ppos,
                            struct panel_group_template *group,
                            int serial, int level, int c_mul)