ccan/io: timer support.

[ccan] / ccan / io / backend.h

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index 2b41fa72864ca1df0ac16b2afa023e2cfcd1856c..a36dee9b1a727c5dc0658fd7d418884b4eccb29d 100644 (file)
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -1,7 +1,8 @@
-/* Licensed under BSD-MIT - see LICENSE file for details */
+/* Licensed under LGPLv2.1+ - see LICENSE file for details */
 #ifndef CCAN_IO_BACKEND_H
 #define CCAN_IO_BACKEND_H
 #include <stdbool.h>
+#include <ccan/timer/timer.h>
 
 struct fd {
        int fd;
@@ -61,11 +62,20 @@ struct io_state_writepart {
        size_t *lenp;
 };
 
+struct io_timeout {
+       struct timer timer;
+       struct io_conn *conn;
+
+       struct io_op *(*next)(struct io_conn *, void *arg);
+       void *next_arg;
+};
+
 /* One connection per client. */
 struct io_conn {
        struct fd fd;
 
        struct io_conn *duplex;
+       struct io_timeout *timeout;
 
        enum io_state state;
        union {
@@ -76,6 +86,11 @@ struct io_conn {
        } u;
 };
 
+static inline bool timeout_active(const struct io_conn *conn)
+{
+       return conn->timeout && conn->timeout->conn;
+}
+
 extern void *io_loop_return;
 
 bool add_listener(struct io_listener *l);
@@ -83,6 +98,8 @@ bool add_conn(struct io_conn *c);
 bool add_duplex(struct io_conn *c);
 void del_listener(struct io_listener *l);
 void backend_set_state(struct io_conn *conn, struct io_op *op);
+void backend_add_timeout(struct io_conn *conn, struct timespec ts);
+void backend_del_timeout(struct io_conn *conn);
 
 struct io_op *do_ready(struct io_conn *conn);
 #endif /* CCAN_IO_BACKEND_H */