From: Stefan Hajnoczi <stefanha@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Anthony Liguori <aliguori@us.ibm.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Blue Swirl <blauwirbel@gmail.com>,
khoa@us.ibm.com, Paolo Bonzini <pbonzini@redhat.com>,
Asias He <asias@redhat.com>
Subject: [Qemu-devel] [PATCH v8 08/12] test-iov: add iov_discard_front/back() testcases
Date: Mon, 17 Dec 2012 11:05:51 +0100 [thread overview]
Message-ID: <1355738755-8975-9-git-send-email-stefanha@redhat.com> (raw)
In-Reply-To: <1355738755-8975-1-git-send-email-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
tests/test-iov.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 150 insertions(+)
diff --git a/tests/test-iov.c b/tests/test-iov.c
index cbe7a89..720d95c 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
next prev parent reply other threads:[~2012-12-17 10:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-17 10:05 [Qemu-devel] [PATCH v8 00/12] virtio: virtio-blk data plane Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 01/12] raw-posix: add raw_get_aio_fd() for virtio-blk-data-plane Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 02/12] configure: add CONFIG_VIRTIO_BLK_DATA_PLANE Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 03/12] dataplane: add host memory mapping code Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 04/12] dataplane: add virtqueue vring code Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 05/12] dataplane: add event loop Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 06/12] dataplane: add Linux AIO request queue Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 07/12] iov: add iov_discard_front/back() to remove data Stefan Hajnoczi
2012-12-17 10:05 ` Stefan Hajnoczi [this message]
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 09/12] iov: add qemu_iovec_concat_iov() Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 10/12] virtio-blk: restore VirtIOBlkConf->config_wce flag Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 11/12] dataplane: add virtio-blk data plane code Stefan Hajnoczi
2012-12-17 10:05 ` [Qemu-devel] [PATCH v8 12/12] virtio-blk: add x-data-plane=on|off performance feature Stefan Hajnoczi
2012-12-18 13:02 ` [Qemu-devel] [PATCH v8 00/12] virtio: virtio-blk data plane Stefan Hajnoczi
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