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[Qemu-devel] [PATCH 08/18] test-iov: add iov_discard_front/back() testca
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 08/18] test-iov: add iov_discard_front/back() testcases |
Date: |
Wed, 2 Jan 2013 16:15:46 +0100 |
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
tests/test-iov.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 150 insertions(+)
diff --git a/tests/test-iov.c b/tests/test-iov.c
index a480bc8..46e4ddd 100644
--- a/tests/test-iov.c
+++ b/tests/test-iov.c
@@ -250,11 +250,161 @@ static void test_io(void)
#endif
}
+static void test_discard_front(void)
+{
+ struct iovec *iov;
+ struct iovec *iov_tmp;
+ unsigned int iov_cnt;
+ unsigned int iov_cnt_tmp;
+ void *old_base;
+ size_t size;
+ size_t ret;
+
+ /* Discard zero bytes */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, 0);
+ g_assert(ret == 0);
+ g_assert(iov_tmp == iov);
+ g_assert(iov_cnt_tmp == iov_cnt);
+ iov_free(iov, iov_cnt);
+
+ /* Discard more bytes than vector size */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ size = iov_size(iov, iov_cnt);
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size + 1);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == 0);
+ iov_free(iov, iov_cnt);
+
+ /* Discard entire vector */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ size = iov_size(iov, iov_cnt);
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == 0);
+ iov_free(iov, iov_cnt);
+
+ /* Discard within first element */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ old_base = iov->iov_base;
+ size = g_test_rand_int_range(1, iov->iov_len);
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_tmp == iov);
+ g_assert(iov_cnt_tmp == iov_cnt);
+ g_assert(iov_tmp->iov_base == old_base + size);
+ iov_tmp->iov_base = old_base; /* undo before g_free() */
+ iov_free(iov, iov_cnt);
+
+ /* Discard entire first element */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, iov->iov_len);
+ g_assert(ret == iov->iov_len);
+ g_assert(iov_tmp == iov + 1);
+ g_assert(iov_cnt_tmp == iov_cnt - 1);
+ iov_free(iov, iov_cnt);
+
+ /* Discard within second element */
+ iov_random(&iov, &iov_cnt);
+ iov_tmp = iov;
+ iov_cnt_tmp = iov_cnt;
+ old_base = iov[1].iov_base;
+ size = iov->iov_len + g_test_rand_int_range(1, iov[1].iov_len);
+ ret = iov_discard_front(&iov_tmp, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_tmp == iov + 1);
+ g_assert(iov_cnt_tmp == iov_cnt - 1);
+ g_assert(iov_tmp->iov_base == old_base + (size - iov->iov_len));
+ iov_tmp->iov_base = old_base; /* undo before g_free() */
+ iov_free(iov, iov_cnt);
+}
+
+static void test_discard_back(void)
+{
+ struct iovec *iov;
+ unsigned int iov_cnt;
+ unsigned int iov_cnt_tmp;
+ void *old_base;
+ size_t size;
+ size_t ret;
+
+ /* Discard zero bytes */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ ret = iov_discard_back(iov, &iov_cnt_tmp, 0);
+ g_assert(ret == 0);
+ g_assert(iov_cnt_tmp == iov_cnt);
+ iov_free(iov, iov_cnt);
+
+ /* Discard more bytes than vector size */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ size = iov_size(iov, iov_cnt);
+ ret = iov_discard_back(iov, &iov_cnt_tmp, size + 1);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == 0);
+ iov_free(iov, iov_cnt);
+
+ /* Discard entire vector */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ size = iov_size(iov, iov_cnt);
+ ret = iov_discard_back(iov, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == 0);
+ iov_free(iov, iov_cnt);
+
+ /* Discard within last element */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ old_base = iov[iov_cnt - 1].iov_base;
+ size = g_test_rand_int_range(1, iov[iov_cnt - 1].iov_len);
+ ret = iov_discard_back(iov, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == iov_cnt);
+ g_assert(iov[iov_cnt - 1].iov_base == old_base);
+ iov_free(iov, iov_cnt);
+
+ /* Discard entire last element */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ old_base = iov[iov_cnt - 1].iov_base;
+ size = iov[iov_cnt - 1].iov_len;
+ ret = iov_discard_back(iov, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == iov_cnt - 1);
+ iov_free(iov, iov_cnt);
+
+ /* Discard within second-to-last element */
+ iov_random(&iov, &iov_cnt);
+ iov_cnt_tmp = iov_cnt;
+ old_base = iov[iov_cnt - 2].iov_base;
+ size = iov[iov_cnt - 1].iov_len +
+ g_test_rand_int_range(1, iov[iov_cnt - 2].iov_len);
+ ret = iov_discard_back(iov, &iov_cnt_tmp, size);
+ g_assert(ret == size);
+ g_assert(iov_cnt_tmp == iov_cnt - 1);
+ g_assert(iov[iov_cnt - 2].iov_base == old_base);
+ iov_free(iov, iov_cnt);
+}
+
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_rand_int();
g_test_add_func("/basic/iov/from-to-buf", test_to_from_buf);
g_test_add_func("/basic/iov/io", test_io);
+ g_test_add_func("/basic/iov/discard-front", test_discard_front);
+ g_test_add_func("/basic/iov/discard-back", test_discard_back);
return g_test_run();
}
--
1.8.0.2
- [Qemu-devel] [PULL v2 00/18] Block patches, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 02/18] configure: add CONFIG_VIRTIO_BLK_DATA_PLANE, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 01/18] raw-posix: add raw_get_aio_fd() for virtio-blk-data-plane, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 03/18] dataplane: add host memory mapping code, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 04/18] dataplane: add virtqueue vring code, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 06/18] dataplane: add Linux AIO request queue, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 08/18] test-iov: add iov_discard_front/back() testcases,
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH 07/18] iov: add iov_discard_front/back() to remove data, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 05/18] dataplane: add event loop, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 10/18] virtio-blk: restore VirtIOBlkConf->config_wce flag, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 09/18] iov: add qemu_iovec_concat_iov(), Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 12/18] virtio-blk: add x-data-plane=on|off performance feature, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 11/18] dataplane: add virtio-blk data plane code, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 15/18] qemu-img: report size overflow error message, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 13/18] virtio-blk: Return UNSUPP for unknown request types, Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 18/18] sheepdog: pass oid directly to send_pending_req(), Stefan Hajnoczi, 2013/01/02
- [Qemu-devel] [PATCH 16/18] block/raw-win32: Fix compiler warnings (wrong format specifiers), Stefan Hajnoczi, 2013/01/02