X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fio%2Fbackend.h;h=b6674025b0233cf7e2f3a801dd9b41b026a3e97a;hb=f7ab2c65d40839a327e50876dc2708ab7b11aa52;hp=77d51dda9bf1825a6e02a6be85b3a0f3184c5804;hpb=e40f5c50a7a930fc98974936b7366b498ebf984c;p=ccan

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index 77d51dda..b6674025 100644
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -3,6 +3,10 @@
 #define CCAN_IO_BACKEND_H
 #include <stdbool.h>
 #include <ccan/timer/timer.h>
+#include <poll.h>
+
+/* A setting for actions to always run (eg. zero-length reads). */
+#define POLLALWAYS (((POLLIN|POLLOUT) + 1) & ~((POLLIN|POLLOUT)))
 
 struct io_alloc {
 	void *(*alloc)(size_t size);
@@ -87,6 +91,7 @@ bool add_conn(struct io_conn *c);
 bool add_duplex(struct io_conn *c);
 void del_listener(struct io_listener *l);
 void backend_plan_changed(struct io_conn *conn);
+void backend_wait_changed(const void *wait);
 void backend_add_timeout(struct io_conn *conn, struct timespec ts);
 void backend_del_timeout(struct io_conn *conn);
 void backend_del_conn(struct io_conn *conn);