platform_bionic/tests/sys_sysinfo_test.cpp
Elliott Hughes c508de0e41 Use sysinfo(2) to implement more of <sys/sysinfo.h>.
We already had implementations of some of the functions, and I didn't
bother rewriting them when we added sysinfo(2). Ross Anderson said in
https://www.lightbluetouchpaper.org/2016/07/29/yet-another-android-side-channel/
that we should "simply disable access to all procfs files", which made
me curious how many places we use /proc in bionic. This is the one that's
obviously unnecessary. The others I'm not aware of alternative APIs for.

Change-Id: Ia64f36b76f29a7a1dd67845270a5472e121aae10
2016-08-11 14:51:31 -07:00

44 lines
1.3 KiB
C++

/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <sys/sysinfo.h>
#include <unistd.h>
TEST(sys_sysinfo, smoke) {
int nprocs = get_nprocs();
ASSERT_GT(nprocs, 0);
ASSERT_EQ(sysconf(_SC_NPROCESSORS_ONLN), nprocs);
int nprocs_conf = get_nprocs_conf();
ASSERT_GE(nprocs_conf, nprocs);
ASSERT_EQ(sysconf(_SC_NPROCESSORS_CONF), nprocs_conf);
long avail_phys_pages = get_avphys_pages();
ASSERT_GT(avail_phys_pages, 0);
ASSERT_EQ(sysconf(_SC_AVPHYS_PAGES), avail_phys_pages);
long phys_pages = get_phys_pages();
ASSERT_GE(phys_pages, avail_phys_pages);
ASSERT_EQ(sysconf(_SC_PHYS_PAGES), phys_pages);
}
TEST(sys_sysinfo, sysinfo) {
struct sysinfo si;
memset(&si, 0, sizeof(si));
ASSERT_EQ(0, sysinfo(&si));
}