test/send_recv: use stderr for errors

And include error value.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 11 insertions, 8 deletions

diff --git a/test/send_recv.c b/test/send_recv.c
index 9f2c9a4..9c9b9b8 100644
--- a/test/send_recv.c
+++ b/test/send_recv.c
@@ -49,10 +49,11 @@ static int recv_prep(struct io_uring *ring, struct iovec *iov)
 
 	sqe = io_uring_get_sqe(ring);
 	io_uring_prep_recv(sqe, sockfd, iov->iov_base, iov->iov_len, 0);
+	sqe->user_data = 2;
 
 	ret = io_uring_submit(ring);
 	if (ret <= 0) {
-		printf("submit failed\n");
+		fprintf(stderr, "submit failed: %d\n", ret);
 		goto err;
 	}
 
@@ -68,17 +69,18 @@ static int do_recv(struct io_uring *ring, struct iovec *iov)
 
 	io_uring_wait_cqe(ring, &cqe);
 	if (cqe->res < 0) {
-		printf("failed cqe: %d\n", cqe->res);
+		fprintf(stderr, "failed cqe: %d\n", cqe->res);
 		goto err;
 	}
 
 	if (cqe->res -1 != strlen(str)) {
-		printf("got wrong length\n");
+		fprintf(stderr, "got wrong length: %d/%d\n", cqe->res,
+							(int) strlen(str) + 1);
 		goto err;
 	}
 
 	if (strcmp(str, iov->iov_base)) {
-		printf("string mismatch\n");
+		fprintf(stderr, "string mismatch\n");
 		goto err;
 	}
 
@@ -122,7 +124,7 @@ static int do_send(void)
 
 	ret = io_uring_queue_init(1, &ring, 0);
 	if (ret) {
-		printf("queue init fail\n");
+		fprintf(stderr, "queue init fail: %d\n", ret);
 		return 1;
 	}
 
@@ -145,16 +147,17 @@ static int do_send(void)
 
 	sqe = io_uring_get_sqe(&ring);
 	io_uring_prep_send(sqe, sockfd, iov.iov_base, iov.iov_len, 0);
+	sqe->user_data = 1;
 
 	ret = io_uring_submit(&ring);
 	if (ret <= 0) {
-		printf("submit failed\n");
+		fprintf(stderr, "submit failed: %d\n", ret);
 		goto err;
 	}
 
 	ret = io_uring_wait_cqe(&ring, &cqe);
 	if (cqe->res != iov.iov_len) {
-		printf("failed cqe: %d\n", cqe->res);
+		fprintf(stderr, "failed cqe: %d\n", cqe->res);
 		goto err;
 	}
 
@@ -180,7 +183,7 @@ int main(int argc, char *argv[])
 
 	ret = pthread_create(&recv_thread, NULL, recv_fn, &mutex);
 	if (ret) {
-		fprintf(stderr, "Thread create failed\n");
+		fprintf(stderr, "Thread create failed: %d\n", ret);
 		return 1;
 	}