From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:55455) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TbF7F-0001eP-HL for qemu-devel@nongnu.org; Wed, 21 Nov 2012 13:33:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TbF7E-0006S2-50 for qemu-devel@nongnu.org; Wed, 21 Nov 2012 13:33:41 -0500 Received: from mx1.redhat.com ([209.132.183.28]:23151) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TbF7D-0006Rr-S7 for qemu-devel@nongnu.org; Wed, 21 Nov 2012 13:33:40 -0500 From: Stefan Hajnoczi Date: Wed, 21 Nov 2012 19:32:59 +0100 Message-Id: <1353522781-12721-11-git-send-email-stefanha@redhat.com> In-Reply-To: <1353522781-12721-1-git-send-email-stefanha@redhat.com> References: <1353522781-12721-1-git-send-email-stefanha@redhat.com> Subject: [Qemu-devel] [PATCH v3 10/12] test-iov: add iov_get_ptr() test case List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , Anthony Liguori , dkoch@cloudswitch.com, "Michael S. Tsirkin" , Michael Roth , Blue Swirl , khoa@us.ibm.com, Stefan Hajnoczi , Paolo Bonzini , Asias He Signed-off-by: Stefan Hajnoczi --- tests/test-iov.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/tests/test-iov.c b/tests/test-iov.c index 7997fb5..477aad8 100644 --- a/tests/test-iov.c +++ b/tests/test-iov.c @@ -378,6 +378,43 @@ static void test_discard(void) iov_free(iov, iov_cnt); } +static void test_get_ptr(void) +{ + struct iovec *iov; + unsigned int iov_cnt; + ssize_t offset; + size_t size; + void *ret; + + /* Offset beyond end of vector */ + iov_random(&iov, &iov_cnt); + size = iov_size(iov, iov_cnt); + ret = iov_get_ptr(iov, iov_cnt, size + 1, 1); + g_assert(ret == NULL); + iov_free(iov, iov_cnt); + + /* Offset before beginning of vector */ + iov_random(&iov, &iov_cnt); + size = iov_size(iov, iov_cnt); + ret = iov_get_ptr(iov, iov_cnt, -(size + 1), 1); + g_assert(ret == NULL); + iov_free(iov, iov_cnt); + + /* Range spans elements */ + iov_random(&iov, &iov_cnt); + ret = iov_get_ptr(iov, iov_cnt, iov->iov_len - 1, 2); + g_assert(ret == NULL); + iov_free(iov, iov_cnt); + + /* Range within element */ + iov_random(&iov, &iov_cnt); + offset = g_test_rand_int_range(1, iov->iov_len); + size = g_test_rand_int_range(1, iov->iov_len - offset + 1); + ret = iov_get_ptr(iov, iov_cnt, offset, size); + g_assert(ret == iov->iov_base + offset); + iov_free(iov, iov_cnt); +} + int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); @@ -385,5 +422,6 @@ int main(int argc, char **argv) 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", test_discard); + g_test_add_func("/basic/iov/get-ptr", test_get_ptr); return g_test_run(); } -- 1.8.0