diff options
author | Jens Axboe <axboe@kernel.dk> | 2019-01-10 09:32:41 -0700 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2019-01-10 09:35:34 -0700 |
commit | 6cdce17753a3664484c907ed264e734ed5f3c2d7 (patch) | |
tree | a48587808e1b4f46b1df9e39223cb7fdf1483097 /test | |
parent | 7bf7e8e8e5cf1fe46194c6faf58e94cee815ac6a (diff) |
Update API
- io_uring_sqe added a data field that's passed back at completion
- io_uring_sqe added an index field, for fixed buffer locations
- io_uring_setup(2) system call added a 'nr_iovecs' field
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'test')
-rw-r--r-- | test/io_uring-cp.c | 30 | ||||
-rw-r--r-- | test/io_uring-test.c | 2 |
2 files changed, 22 insertions, 10 deletions
diff --git a/test/io_uring-cp.c b/test/io_uring-cp.c index 176d9de..9d7c56c 100644 --- a/test/io_uring-cp.c +++ b/test/io_uring-cp.c @@ -18,6 +18,11 @@ static struct io_uring in_ring; static struct io_uring out_ring; static struct iovec iovecs[QD]; +struct io_data { + off_t offset; + struct iovec *iov; +}; + static int setup_context(unsigned entries, struct io_uring *ring, int offload) { struct io_uring_params p; @@ -27,7 +32,7 @@ static int setup_context(unsigned entries, struct io_uring *ring, int offload) if (offload) p.flags = IORING_SETUP_SQWQ; - ret = io_uring_queue_init(entries, &p, NULL, ring); + ret = io_uring_queue_init(entries, &p, NULL, 0, ring); if (ret < 0) { fprintf(stderr, "queue_init: %s\n", strerror(-ret)); return -1; @@ -58,17 +63,23 @@ static unsigned sqe_index(struct io_uring_sqe *sqe) static int queue_read(int fd, off_t size, off_t offset) { struct io_uring_sqe *sqe; + struct io_data *data; sqe = io_uring_get_sqe(&in_ring); if (!sqe) return 1; + data = malloc(sizeof(*data)); + data->offset = offset; + data->iov = &iovecs[sqe_index(sqe)]; + sqe->opcode = IORING_OP_READV; sqe->flags = 0; sqe->ioprio = 0; sqe->fd = fd; sqe->off = offset; - sqe->addr = &iovecs[sqe_index(sqe)]; + sqe->addr = data->iov; + sqe->data = (unsigned long) data; iovecs[sqe_index(sqe)].iov_len = size; sqe->len = 1; return 0; @@ -105,8 +116,9 @@ static int complete_writes(unsigned *writes) return 0; } -static void queue_write(int fd, off_t size, off_t offset, unsigned index) +static void queue_write(int fd, struct io_uring_cqe *cqe) { + struct io_data *data = (struct io_data *) cqe->data; struct io_uring_sqe *sqe; sqe = io_uring_get_sqe(&out_ring); @@ -114,10 +126,12 @@ static void queue_write(int fd, off_t size, off_t offset, unsigned index) sqe->flags = 0; sqe->ioprio = 0; sqe->fd = fd; - sqe->off = offset; - sqe->addr = &iovecs[index]; - iovecs[index].iov_len = size; + sqe->off = data->offset; + sqe->addr = data->iov; + sqe->data = 0; + data->iov->iov_len = cqe->res; sqe->len = 1; + free(data); } int main(int argc, char *argv[]) @@ -164,7 +178,6 @@ int main(int argc, char *argv[]) write_left = read_left; while (read_left || write_left) { off_t this_size = read_left; - struct io_uring_sqe *sqe; if (this_size > BS) this_size = BS; @@ -209,8 +222,7 @@ skip_read: strerror(-cqe->res)); return 1; } - sqe = io_uring_sqe_from_cqe(&in_ring, cqe); - queue_write(outfd, cqe->res, sqe->off, cqe->index); + queue_write(outfd, cqe); write_left -= cqe->res; writes++; }; diff --git a/test/io_uring-test.c b/test/io_uring-test.c index aaf7e66..caf61ed 100644 --- a/test/io_uring-test.c +++ b/test/io_uring-test.c @@ -32,7 +32,7 @@ int main(int argc, char *argv[]) memset(&p, 0, sizeof(p)); p.flags = IORING_SETUP_IOPOLL; - ret = io_uring_queue_init(QD, &p, NULL, &ring); + ret = io_uring_queue_init(QD, &p, NULL, 0, &ring); if (ret < 0) { fprintf(stderr, "queue_init: %s\n", strerror(-ret)); return 1; |