Improve disp API and implement dynamic reload

1 files changed, 17 insertions, 3 deletions

diff --git a/src/disp.h b/src/disp.h
index d0b2d19..454378d 100644
--- a/src/disp.h
+++ b/src/disp.h
@@ -18,11 +18,19 @@
 #define DISP_H
 
 #include <stdbool.h>
+#include <limits.h>
 
 /* Available display types. */
 #define DISP_CLI "cli"
 #define DISP_RAY "ray"
 
+/* Reserved return values for the read_input function. */
+#ifndef NDEBUG
+#  define DISP_RELOAD INT_MAX
+#endif
+#define DISP_QUIT (INT_MAX - 1)
+#define DISP_ERR (INT_MAX - 2)
+
 struct disp {
 	void *dl_handle;
 	void (*init)(void);
@@ -30,13 +38,19 @@ struct disp {
 	int  (*read_input)(void);
 	void (*display_res)(bool, int);
 	void (*destroy)(void);
+#ifndef NDEBUG
+	char *so_path;
 	void *(*pre_reload)(void);
 	void (*post_reload)(void *);
+#endif
 };
 
 /* Get a display handler for the given display type. */
-struct disp *get_disp(char *disp_name);
+struct disp *get_disp(char *);
+void destroy_disp(struct disp *);
 
-void destroy_disp(void);
+#ifndef NDEBUG
+void disp_reload(struct disp *);
+#endif	/* NDEBUG */
 
-#endif
+#endif	/* DISP_H */