[RFC PATCH liburing v1 1/2] liburing: Add `io_uring_prep_sendto()`

From: Ammar Faizi
Date: Sat Apr 15 2023 - 12:58:41 EST


A sendto(2) request can be done using:

io_uring_prep_send() + io_uring_prep_send_set_addr()

Create a wrapper function, io_uring_prep_sendto().

Signed-off-by: Ammar Faizi <ammarfaizi2@xxxxxxxxxxx>
---
src/include/liburing.h | 25 +++++++++++++++++--------
src/liburing-ffi.map | 1 +
2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/src/include/liburing.h b/src/include/liburing.h
index fbc65b60788a4d44..70c177431faf9f75 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -758,6 +758,23 @@ IOURINGINLINE void io_uring_prep_send(struct io_uring_sqe *sqe, int sockfd,
sqe->msg_flags = (__u32) flags;
}

+IOURINGINLINE void io_uring_prep_send_set_addr(struct io_uring_sqe *sqe,
+ const struct sockaddr *dest_addr,
+ __u16 addr_len)
+{
+ sqe->addr2 = (unsigned long)(const void *)dest_addr;
+ sqe->addr_len = addr_len;
+}
+
+IOURINGINLINE void io_uring_prep_sendto(struct io_uring_sqe *sqe, int sockfd,
+ const void *buf, size_t len, int flags,
+ const struct sockaddr *addr,
+ socklen_t addrlen)
+{
+ io_uring_prep_send(sqe, sockfd, buf, len, flags);
+ io_uring_prep_send_set_addr(sqe, addr, addrlen);
+}
+
IOURINGINLINE void io_uring_prep_send_zc(struct io_uring_sqe *sqe, int sockfd,
const void *buf, size_t len, int flags,
unsigned zc_flags)
@@ -786,14 +803,6 @@ IOURINGINLINE void io_uring_prep_sendmsg_zc(struct io_uring_sqe *sqe, int fd,
sqe->opcode = IORING_OP_SENDMSG_ZC;
}

-IOURINGINLINE void io_uring_prep_send_set_addr(struct io_uring_sqe *sqe,
- const struct sockaddr *dest_addr,
- __u16 addr_len)
-{
- sqe->addr2 = (unsigned long)(const void *)dest_addr;
- sqe->addr_len = addr_len;
-}
-
IOURINGINLINE void io_uring_prep_recv(struct io_uring_sqe *sqe, int sockfd,
void *buf, size_t len, int flags)
{
diff --git a/src/liburing-ffi.map b/src/liburing-ffi.map
index c971bf8c858f3005..0a5e12ca764a2a1e 100644
--- a/src/liburing-ffi.map
+++ b/src/liburing-ffi.map
@@ -170,6 +170,7 @@ LIBURING_2.4 {
io_uring_prep_msg_ring_cqe_flags;
io_uring_prep_msg_ring_fd;
io_uring_prep_msg_ring_fd_alloc;
+ io_uring_prep_sendto;
local:
*;
};
--
Ammar Faizi