1 files changed, 7 insertions, 0 deletions

diff --git a/src/process.h b/src/process.h
index 562d888f93f..d6e842cfbbc 100644
--- a/src/process.h
+++ b/src/process.h
@@ -192,5 +192,12 @@ extern void hold_keyboard_input (void);
 extern void unhold_keyboard_input (void);
 extern int kbd_on_hold_p (void);
 
+typedef void (*fd_callback)(int fd, void *data, int for_read);
+
+extern void add_read_fd (int fd, fd_callback func, void *data);
+extern void delete_read_fd (int fd);
+extern void add_write_fd (int fd, fd_callback func, void *data);
+extern void delete_write_fd (int fd);
+
 /* arch-tag: dffedfc4-d7bc-4b58-a26f-c16155449c72
    (do not change this comment) */