test/sfr: basic test for sync_file_range
Just call it and check that it doesn't hang and returns success.
@@ -135,6 +135,79 @@ err:
return 1;
}
+#define FILE_SIZE 1024
+
+static int create_file(const char *file)
+{
+ ssize_t ret;
+ char *buf;
+ int fd;
+
+ buf = malloc(FILE_SIZE);
+ memset(buf, 0xaa, FILE_SIZE);
+
+ fd = open(file, O_WRONLY | O_CREAT, 0644);
+ if (fd < 0) {
+ perror("open file");
+ return 1;
+ }
+ ret = write(fd, buf, FILE_SIZE);
+ close(fd);
+ return ret != FILE_SIZE;
+}
+
+static int test_sync_file_range(struct io_uring *ring)
+{
+ int ret, fd, save_errno;
+ struct io_uring_sqe *sqe;
+ struct io_uring_cqe *cqe;
+
+ if (create_file(".sync_file_range")) {
+ fprintf(stderr, "file creation failed\n");
+ return 1;
+ }
+
+ fd = open(".sync_file_range", O_RDWR);
+ save_errno = errno;
+ unlink(".sync_file_range");
+ errno = save_errno;
+ if (fd < 0) {
+ perror("file open");
+ return 1;
+ }
+
+ sqe = io_uring_get_sqe(ring);
+ if (!sqe) {
+ fprintf(stderr, "sqe get failed\n");
+ return 1;
+ }
+ memset(sqe, 0, sizeof(*sqe));
+ sqe->opcode = IORING_OP_SYNC_FILE_RANGE;
+ sqe->off = 0;
+ sqe->len = 0;
+ sqe->sync_range_flags = 0;
+ sqe->user_data = 1;
+ sqe->fd = fd;
+
+ ret = io_uring_submit(ring);
+ if (ret != 1) {
+ fprintf(stderr, "submit failed: %d\n", ret);
+ return 1;
+ }
+ ret = io_uring_wait_cqe(ring, &cqe);
+ if (ret) {
+ fprintf(stderr, "wait_cqe failed: %d\n", ret);
+ return 1;
+ }
+ if (cqe->res) {
+ fprintf(stderr, "sfr failed: %d\n", cqe->res);
+ return 1;
+ }
+
+ io_uring_cqe_seen(ring, cqe);
+ return 0;
+}
+
int main(int argc, char *argv[])
{
struct io_uring ring;
@@ -159,5 +232,11 @@ int main(int argc, char *argv[])
return ret;
}
+ ret = test_sync_file_range(&ring);
+ if (ret) {
+ fprintf(stderr, "test_sync_file_range failed\n");
+ return ret;
+ }
+
return 0;
}
