112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*
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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 <sys/resource.h>
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#include <gtest/gtest.h>
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TEST(sys_resource, rlimit_struct_size) {
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#if defined(__LP64__) || defined(__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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}
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class SysResourceTest : public ::testing::Test {
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protected:
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virtual void SetUp() {
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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, prlimit(0, RLIMIT_CORE, nullptr, &pr_l32_));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, nullptr, &pr_l64_));
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}
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void CheckResourceLimits();
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protected:
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rlimit l32_;
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rlimit64 l64_;
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rlimit pr_l32_;
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rlimit64 pr_l64_;
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};
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void SysResourceTest::CheckResourceLimits() {
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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, prlimit(0, RLIMIT_CORE, nullptr, &pr_l32_));
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, nullptr, &pr_l64_));
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ASSERT_EQ(l32_.rlim_cur, pr_l32_.rlim_cur);
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ASSERT_EQ(l64_.rlim_cur, pr_l64_.rlim_cur);
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if (l64_.rlim_cur == RLIM64_INFINITY) {
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ASSERT_EQ(RLIM_INFINITY, l32_.rlim_cur);
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} else {
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ASSERT_EQ(l64_.rlim_cur, l32_.rlim_cur);
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}
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ASSERT_EQ(l32_.rlim_max, pr_l32_.rlim_max);
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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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}
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// Force rlim_max to be bigger than a constant so we can continue following test.
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// Change resource limit setting with "ulimit -Hc" in the shell if this test fails.
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TEST_F(SysResourceTest, RLIMIT_CORE_rlim_max_not_zero) {
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ASSERT_TRUE(l32_.rlim_max == RLIM_INFINITY || l32_.rlim_max >= 456U) <<
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"RLIMIT_CORE rlim_max = " << l32_.rlim_max;
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}
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TEST_F(SysResourceTest, get_resource_limit_equal) {
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CheckResourceLimits();
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}
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TEST_F(SysResourceTest, setrlimit) {
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l32_.rlim_cur = 123U;
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ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32_));
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CheckResourceLimits();
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ASSERT_EQ(123U, l32_.rlim_cur);
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}
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TEST_F(SysResourceTest, setrlimit64) {
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l64_.rlim_cur = 456U;
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ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64_));
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CheckResourceLimits();
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ASSERT_EQ(456U, l64_.rlim_cur);
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}
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TEST_F(SysResourceTest, prlimit) {
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pr_l32_.rlim_cur = pr_l32_.rlim_max;
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ASSERT_EQ(0, prlimit(0, RLIMIT_CORE, &pr_l32_, nullptr));
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CheckResourceLimits();
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ASSERT_EQ(pr_l32_.rlim_max, pr_l32_.rlim_cur);
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}
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TEST_F(SysResourceTest, prlimit64) {
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pr_l64_.rlim_cur = pr_l64_.rlim_max;
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ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &pr_l64_, nullptr));
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CheckResourceLimits();
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ASSERT_EQ(pr_l64_.rlim_max, pr_l64_.rlim_cur);
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}
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