X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fio%2Fbackend.h;h=b6674025b0233cf7e2f3a801dd9b41b026a3e97a;hp=30a338f77a73958eaf83acad62eb87b027d27025;hb=f7ab2c65d40839a327e50876dc2708ab7b11aa52;hpb=13b38a7282c6043d6abe310e5a16d6610ed7a1c1

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index 30a338f7..b6674025 100644
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -3,6 +3,17 @@
 #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);
+	void *(*realloc)(void *ptr, size_t size);
+	void (*free)(void *ptr);
+};
+extern struct io_alloc io_alloc;
 
 struct fd {
 	int fd;
@@ -80,6 +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);