It is now impossible to create a view with a name identical to one of an

existing written view

src/obiview.c

@@ -224,6 +224,8 @@ Obiview_p obi_new_view_nuc_seqs(OBIDMS_p dms, const char* view_name, Obiview_p v
 	}
 
 	view = obi_new_view(dms, view_name, view_to_clone, line_selection, comments);
+	if (view== NULL)
+		return NULL;
 
 	strcpy(view->view_type, VIEW_TYPE_NUC_SEQS);
 
@@ -258,6 +260,24 @@ Obiview_p obi_new_view(OBIDMS_p dms, const char* view_name, Obiview_p view_to_cl
 	Obiview_p view;
 	int i;
 	index_t line_nb;
+	Obiviews_infos_all_p views_infos;
+
+	// Check uniqueness of name TODO but problem if view not written yet has the same name
+	views_infos = obi_read_views(dms);
+	if (views_infos != NULL)
+	{
+		for (i=0; i<((views_infos->header)->view_count); i++)
+		{
+			if (strcmp(((views_infos->view_infos)+i)->name, view_name) == 0)		// TODO discuss what to do
+			{
+				obi_set_errno(OBIVIEW_ERROR);
+				obidebug(1, "\nView name already exists for a previous view");
+				obi_unmap_read_views(views_infos);
+				return NULL;
+			}
+		}
+	obi_unmap_read_views(views_infos);
+	}
 
 	view = (Obiview_p) malloc(sizeof(Obiview_t));
 	if (view == NULL)
@@ -646,6 +666,28 @@ Obiviews_infos_all_p obi_read_views(OBIDMS_p dms)
 }
 
 
+int obi_unmap_read_views(Obiviews_infos_all_p views)
+{
+	if (munmap(views->view_infos, (views->header)->views_size) < 0)
+	{
+		obi_set_errno(OBIVIEW_ERROR);
+		obidebug(1, "\nError unmapping the views of an obiview file");
+		free(views);
+		return -1;
+	}
+	if (munmap(views->header, (views->header)->header_size) < 0)
+	{
+		obi_set_errno(OBIVIEW_ERROR);
+		obidebug(1, "\nError unmapping the header of an obiview file");
+		free(views);
+		return -1;
+
+	}
+	free(views);
+	return 0;
+}
+
+
 int obi_view_add_column(Obiview_p view,
 						const char* column_name,
 						obiversion_t version_number,

src/obiview.h

@@ -153,6 +153,8 @@ Obiview_p obi_open_view(OBIDMS_p dms, const char* view_name);
 
 Obiviews_infos_all_p obi_read_views(OBIDMS_p dms);
 
+int obi_unmap_read_views(Obiviews_infos_all_p views);
+
 int obi_view_add_column(Obiview_p view,
 						const char* column_name,
 						obiversion_t version_number,