io: don't leave errno as a random value when we hit EOF.

[ccan] / ccan / io / backend.h

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index 3e158a3669174b60ad766b060fd85eb15294b4ab..2ee5a830e1233bd614d916d73d7087a9f9ec7cea 100644 (file)
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -2,7 +2,6 @@
 #ifndef CCAN_IO_BACKEND_H
 #define CCAN_IO_BACKEND_H
 #include <stdbool.h>
-#include <poll.h>
 #include "io_plan.h"
 #include <ccan/list/list.h>
 
@@ -26,8 +25,9 @@ struct io_listener {
 enum io_plan_status {
        /* As before calling next function. */
        IO_UNSET,
-       /* Normal. */
-       IO_POLLING,
+       /* Normal, but haven't started yet. */
+       IO_POLLING_NOTSTARTED,
+       IO_POLLING_STARTED,
        /* Waiting for io_wake */
        IO_WAITING,
        /* Always do this. */