altos/scheme: Use memory manager mark code to note recursive print

[fw/altos] / src / scheme / ao_scheme.h

diff --git a/src/scheme/ao_scheme.h b/src/scheme/ao_scheme.h
index 48d0149bebacb263281eefb75cb5c31d964d514c..cc7f8f1d5600d4a2c4565c70b057228261d8daa2 100644 (file)
--- a/src/scheme/ao_scheme.h
+++ b/src/scheme/ao_scheme.h
@@ -555,6 +555,21 @@ ao_scheme_move_memory(const struct ao_scheme_type *type, void **ref);
 void *
 ao_scheme_alloc(int size);
 
+/* Marks an object as being printed, returns 1 if it was already marked */
+int
+ao_scheme_print_mark_addr(void *addr);
+
+int
+ao_scheme_print_mark_poly(ao_poly poly);
+
+/* Notes that printing has started */
+void
+ao_scheme_print_start(void);
+
+/* Notes that printing has ended */
+void
+ao_scheme_print_stop(void);
+
 #define AO_SCHEME_COLLECT_FULL         1
 #define AO_SCHEME_COLLECT_INCREMENTAL  0