88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <sys/resource.h>
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#if __GLIBC__
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/* The host glibc we're currently building with doesn't have prlimit64 yet. */
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static int prlimit64(pid_t, int resource, const struct rlimit64* new_limit, struct rlimit64* old_limit) {
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if (new_limit != NULL) {
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return setrlimit64(resource, new_limit);
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} else {
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return getrlimit64(resource, old_limit);
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}
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}
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#endif
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TEST(sys_resource, smoke) {
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#if __LP64__ || __GLIBC__
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ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64));
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ASSERT_EQ(8U, sizeof(rlim_t));
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#else
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ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
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ASSERT_EQ(4U, sizeof(rlim_t));
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#endif
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// Read with getrlimit, getrlimit64, and prlimit64.
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// (prlimit is prlimit64 on LP64 and unimplemented on 32-bit.)
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rlimit l32;
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rlimit64 l64;
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rlimit64 pr_l64;
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ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
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ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
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ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
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ASSERT_EQ(l64.rlim_max, pr_l64.rlim_max);
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if (l64.rlim_max == RLIM64_INFINITY) {
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ASSERT_EQ(RLIM_INFINITY, l32.rlim_max);
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} else {
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ASSERT_EQ(l64.rlim_max, l32.rlim_max);
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}
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// Write with setrlimit and read back with everything.
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l32.rlim_cur = 123;
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ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32));
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ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
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ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
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ASSERT_EQ(123U, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
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// Write with setrlimit64 and read back with everything.
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l64.rlim_cur = 456;
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ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64));
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ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
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ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
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ASSERT_EQ(456U, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
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// Write with prlimit64 and read back with everything.
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l64.rlim_cur = 789;
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &l64, NULL));
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ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
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ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
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ASSERT_EQ(789U, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
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ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
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}
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