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criu: add a test case for the criu feature check support

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This adds a simple test case which verifies that the new migrate() API
command 'MIGRATE_FEATURE_CHECK' works as expected.

If a feature does not exist on the currently running
architecture/kernel/criu combination it does not report an error as this
is a valid scenario.

Signed-off-by: Adrian Reber <areber@redhat.com>
This commit is contained in:
Adrian Reber 2017-12-13 12:14:58 +01:00
parent b5b12b9e75
commit 739ef90c82
Failed to extract signature
2 changed files with 94 additions and 1 deletions
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5
src/tests/Makefile.am
View File

@ -32,6 +32,7 @@ lxc_test_shortlived_SOURCES = shortlived.c
lxc_test_livepatch_SOURCES = livepatch.c lxctest.h
lxc_test_state_server_SOURCES = state_server.c lxctest.h
lxc_test_share_ns_SOURCES = share_ns.c lxctest.h
lxc_test_criu_check_feature_SOURCES = criu_check_feature.c lxctest.h
AM_CFLAGS=-DLXCROOTFSMOUNT=\"$(LXCROOTFSMOUNT)\" \
-DLXCPATH=\"$(LXCPATH)\" \
@ -61,7 +62,8 @@ bin_PROGRAMS = lxc-test-containertests lxc-test-locktests lxc-test-startone \
lxc-test-reboot lxc-test-list lxc-test-attach lxc-test-device-add-remove \
lxc-test-apparmor lxc-test-utils lxc-test-parse-config-file \
lxc-test-config-jump-table lxc-test-shortlived lxc-test-livepatch \
lxc-test-api-reboot lxc-test-state-server lxc-test-share-ns
lxc-test-api-reboot lxc-test-state-server lxc-test-share-ns \
lxc-test-criu-check-feature
bin_SCRIPTS = lxc-test-automount \
lxc-test-autostart \
@ -93,6 +95,7 @@ EXTRA_DIST = \
console_log.c \
containertests.c \
createtest.c \
criu_check_feature.c \
destroytest.c \
device_add_remove.c \
get_item.c \

90
src/tests/criu_check_feature.c Normal file
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@ -0,0 +1,90 @@
/* liblxcapi
*
* Copyright © 2017 Adrian Reber <areber@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string.h>
#include <limits.h>
#include "lxc/lxccontainer.h"
#include "lxctest.h"
int main(int argc, char *argv[])
{
struct lxc_container *c;
struct migrate_opts m_opts;
int ret = EXIT_FAILURE;
/* Test the feature check interface,
* we actually do not need a container. */
c = lxc_container_new("check_feature", NULL);
if (!c) {
lxc_error("%s", "Failed to create container \"check_feature\"");
exit(ret);
}
if (c->is_defined(c)) {
lxc_error("%s\n", "Container \"check_feature\" is defined");
goto on_error_put;
}
/* check the migrate API call with wrong 'cmd' */
if (!c->migrate(c, UINT_MAX, &m_opts, sizeof(struct migrate_opts))) {
/* This should failed */
lxc_error("%s\n", "Migrate API calls with command UINT_MAX did not fail");
goto on_error_put;
}
/* do the actual fature check for memory tracking */
m_opts.features_to_check = FEATURE_MEM_TRACK;
if (c->migrate(c, MIGRATE_FEATURE_CHECK, &m_opts, sizeof(struct migrate_opts))) {
lxc_debug("%s\n", "System does not support \"FEATURE_MEM_TRACK\".");
}
/* check for lazy pages */
m_opts.features_to_check = FEATURE_LAZY_PAGES;
if (c->migrate(c, MIGRATE_FEATURE_CHECK, &m_opts, sizeof(struct migrate_opts))) {
lxc_debug("%s\n", "System does not support \"FEATURE_LAZY_PAGES\".");
}
/* check for lazy pages and memory tracking */
m_opts.features_to_check = FEATURE_LAZY_PAGES | FEATURE_MEM_TRACK;
if (c->migrate(c, MIGRATE_FEATURE_CHECK, &m_opts, sizeof(struct migrate_opts))) {
if (m_opts.features_to_check == FEATURE_LAZY_PAGES)
lxc_debug("%s\n", "System does not support \"FEATURE_MEM_TRACK\"");
else if (m_opts.features_to_check == FEATURE_MEM_TRACK)
lxc_debug("%s\n", "System does not support \"FEATURE_LAZY_PAGES\"");
else
lxc_debug("%s\n", "System does not support \"FEATURE_MEM_TRACK\" "
"and \"FEATURE_LAZY_PAGES\"");
}
/* test for unknown feature; once there are 64 features to test
* this will be valid... */
m_opts.features_to_check = -1ULL;
if (!c->migrate(c, MIGRATE_FEATURE_CHECK, &m_opts, sizeof(struct migrate_opts))) {
lxc_error("%s\n", "Unsupported feature supported, which is strange.");
goto on_error_put;
}
ret = EXIT_SUCCESS;
on_error_put:
lxc_container_put(c);
if (ret == EXIT_SUCCESS)
lxc_debug("%s\n", "All criu feature check tests passed");
exit(ret);
}