ccan/io: add io_conn_exclusive and io_conn_out_exclusive.

[ccan] / ccan / io / backend.h

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index c071c5d6c5939372bcbb290a0a580e5257076e38..714972d15ea4a3edfc6967ef22a00663c5f5eada 100644 (file)
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -8,6 +8,8 @@
 struct fd {
        int fd;
        bool listener;
+       /* We could put these in io_plan, but they pack nicely here */
+       bool exclusive[2];
        size_t backend_info;
 };
 
@@ -60,9 +62,6 @@ struct io_plan {
 struct io_conn {
        struct fd fd;
 
-       /* always list. */
-       struct list_node always;
-
        void (*finish)(struct io_conn *, void *arg);
        void *finish_arg;
 
@@ -76,15 +75,15 @@ bool add_conn(struct io_conn *c);
 bool add_duplex(struct io_conn *c);
 void del_listener(struct io_listener *l);
 void cleanup_conn_without_close(struct io_conn *c);
-void backend_new_always(struct io_conn *conn);
+bool backend_new_always(struct io_plan *plan);
 void backend_new_plan(struct io_conn *conn);
-void remove_from_always(struct io_conn *conn);
 void backend_plan_done(struct io_conn *conn);
+bool backend_set_exclusive(struct io_plan *plan, bool exclusive);
 
 void backend_wake(const void *wait);
 
 void io_ready(struct io_conn *conn, int pollflags);
-void io_do_always(struct io_conn *conn);
+void io_do_always(struct io_plan *conn);
 void io_do_wakeup(struct io_conn *conn, enum io_direction dir);
 void *do_io_loop(struct io_conn **ready);
 #endif /* CCAN_IO_BACKEND_H */