X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fio%2Fio.h;h=6248fec02c2e5c5ae3d42e65d80eb8483af1d5aa;hp=b5ffdd243bfd8a1710e551741261bb9159923cff;hb=96a1ebd3354ef6250e94b509b4e0c0f1ea7e67bb;hpb=cece098555b7138082373d5c0ddfa8074da18dda;ds=sidebyside

diff --git a/ccan/io/io.h b/ccan/io/io.h
index b5ffdd24..6248fec0 100644
--- a/ccan/io/io.h
+++ b/ccan/io/io.h
@@ -490,4 +490,25 @@ struct io_plan io_close_cb(struct io_conn *, void *unused);
  *	io_loop();
  */
 void *io_loop(void);
+
+/**
+ * io_conn_fd - get the fd from a connection.
+ * @conn: the connection.
+ *
+ * Sometimes useful, eg for getsockname().
+ */
+int io_conn_fd(const struct io_conn *conn);
+
+/**
+ * io_set_alloc - set alloc/realloc/free function for io to use.
+ * @allocfn: allocator function
+ * @reallocfn: reallocator function, ptr may be NULL, size never 0.
+ * @freefn: free function
+ *
+ * By default io uses malloc/realloc/free, and returns NULL if they fail.
+ * You can set your own variants here.
+ */
+void io_set_alloc(void *(*allocfn)(size_t size),
+		  void *(*reallocfn)(void *ptr, size_t size),
+		  void (*freefn)(void *ptr));
 #endif /* CCAN_IO_H */