[PATCH liburing 1/2] Add timeout update

[Pavel Begunkov <asml.silence@xxxxxxxxx>]

Add io_uring_prep_timeout_update() helper and update io_uring.h.

Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
 src/include/liburing.h          | 9 +++++++++
 src/include/liburing/io_uring.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/src/include/liburing.h b/src/include/liburing.h
index cc32232..ebfc424 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -326,6 +326,15 @@ static inline void io_uring_prep_timeout_remove(struct io_uring_sqe *sqe,
 	sqe->timeout_flags = flags;
 }
 
+static inline void io_uring_prep_timeout_update(struct io_uring_sqe *sqe,
+						struct __kernel_timespec *ts,
+						__u64 user_data, unsigned flags)
+{
+	io_uring_prep_rw(IORING_OP_TIMEOUT_REMOVE, sqe, -1,
+				(void *)(unsigned long)user_data, 0, (__u64)ts);
+	sqe->timeout_flags = flags | IORING_TIMEOUT_UPDATE;
+}
+
 static inline void io_uring_prep_accept(struct io_uring_sqe *sqe, int fd,
 					struct sockaddr *addr,
 					socklen_t *addrlen, int flags)
diff --git a/src/include/liburing/io_uring.h b/src/include/liburing/io_uring.h
index 8555de9..abdc737 100644
--- a/src/include/liburing/io_uring.h
+++ b/src/include/liburing/io_uring.h
@@ -155,6 +155,7 @@ enum {
  * sqe->timeout_flags
  */
 #define IORING_TIMEOUT_ABS	(1U << 0)
+#define IORING_TIMEOUT_UPDATE	(1U << 31)
 
 /*
  * sqe->splice_flags
-- 
2.24.0