cb3e7f08ae
Now that we can safely call QOBJECT() on QObject * as well as its subtypes, we can have macros qobject_ref() / qobject_unref() that work everywhere instead of having to use QINCREF() / QDECREF() for QObject and qobject_incref() / qobject_decref() for its subtypes. The replacement is mechanical, except I broke a long line, and added a cast in monitor_qmp_cleanup_req_queue_locked(). Unlike qobject_decref(), qobject_unref() doesn't accept void *. Note that the new macros evaluate their argument exactly once, thus no need to shout them. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180419150145.24795-4-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Rebased, semantic conflict resolved, commit message improved] Signed-off-by: Markus Armbruster <armbru@redhat.com>
136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
/*
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* blockdev.c test cases
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*
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* Copyright (C) 2013-2014 Red Hat Inc.
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*
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* Authors:
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* Stefan Hajnoczi <stefanha@redhat.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest.h"
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#include "libqos/virtio.h"
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#include "qapi/qmp/qdict.h"
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static void drive_add(void)
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{
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char *resp = hmp("drive_add 0 if=none,id=drive0");
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g_assert_cmpstr(resp, ==, "OK\r\n");
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g_free(resp);
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}
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static void drive_del(void)
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{
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char *resp = hmp("drive_del drive0");
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g_assert_cmpstr(resp, ==, "");
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g_free(resp);
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}
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static void device_del(void)
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{
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QDict *response;
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/* Complication: ignore DEVICE_DELETED event */
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qmp_discard_response("{'execute': 'device_del',"
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" 'arguments': { 'id': 'dev0' } }");
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response = qmp_receive();
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g_assert(response);
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g_assert(qdict_haskey(response, "return"));
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qobject_unref(response);
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}
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static void test_drive_without_dev(void)
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{
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/* Start with an empty drive */
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qtest_start("-drive if=none,id=drive0");
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/* Delete the drive */
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drive_del();
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/* Ensure re-adding the drive works - there should be no duplicate ID error
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* because the old drive must be gone.
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*/
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drive_add();
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qtest_end();
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}
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static void test_after_failed_device_add(void)
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{
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QDict *response;
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QDict *error;
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qtest_start("-drive if=none,id=drive0");
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/* Make device_add fail. If this leaks the virtio-blk device then a
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* reference to drive0 will also be held (via qdev properties).
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*/
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response = qmp("{'execute': 'device_add',"
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" 'arguments': {"
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" 'driver': 'virtio-blk-%s',"
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" 'drive': 'drive0'"
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"}}", qvirtio_get_dev_type());
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g_assert(response);
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error = qdict_get_qdict(response, "error");
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g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");
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qobject_unref(response);
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/* Delete the drive */
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drive_del();
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/* Try to re-add the drive. This fails with duplicate IDs if a leaked
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* virtio-blk device exists that holds a reference to the old drive0.
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*/
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drive_add();
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qtest_end();
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}
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static void test_drive_del_device_del(void)
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{
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char *args;
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/* Start with a drive used by a device that unplugs instantaneously */
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args = g_strdup_printf("-drive if=none,id=drive0,file=null-co://,format=raw"
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" -device virtio-scsi-%s"
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" -device scsi-hd,drive=drive0,id=dev0",
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qvirtio_get_dev_type());
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qtest_start(args);
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/*
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* Delete the drive, and then the device
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* Doing it in this order takes notoriously tricky special paths
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*/
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drive_del();
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device_del();
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qtest_end();
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g_free(args);
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}
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int main(int argc, char **argv)
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{
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const char *arch = qtest_get_arch();
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g_test_init(&argc, &argv, NULL);
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qtest_add_func("/drive_del/without-dev", test_drive_without_dev);
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/* TODO I guess any arch with a hot-pluggable virtio bus would do */
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if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64") ||
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!strcmp(arch, "ppc") || !strcmp(arch, "ppc64") ||
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!strcmp(arch, "s390x")) {
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qtest_add_func("/drive_del/after_failed_device_add",
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test_after_failed_device_add);
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qtest_add_func("/blockdev/drive_del_device_del",
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test_drive_del_device_del);
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}
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return g_test_run();
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}
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