2 * Copyright (C) 2014 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <sys/resource.h>
19 #include <gtest/gtest.h>
21 TEST(sys_resource, rlimit_struct_size) {
22 #if defined(__LP64__) || defined(__GLIBC__)
23 ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64));
24 ASSERT_EQ(8U, sizeof(rlim_t));
26 ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
27 ASSERT_EQ(4U, sizeof(rlim_t));
31 class SysResourceTest : public ::testing::Test {
33 virtual void SetUp() {
34 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
35 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
36 ASSERT_EQ(0, prlimit(0, RLIMIT_CORE, nullptr, &pr_l32_));
37 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, nullptr, &pr_l64_));
40 void CheckResourceLimits();
49 void SysResourceTest::CheckResourceLimits() {
50 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
51 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
52 ASSERT_EQ(0, prlimit(0, RLIMIT_CORE, nullptr, &pr_l32_));
53 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, nullptr, &pr_l64_));
55 ASSERT_EQ(l32_.rlim_cur, pr_l32_.rlim_cur);
56 ASSERT_EQ(l64_.rlim_cur, pr_l64_.rlim_cur);
58 if (l64_.rlim_cur == RLIM64_INFINITY) {
59 ASSERT_EQ(RLIM_INFINITY, l32_.rlim_cur);
61 ASSERT_EQ(l64_.rlim_cur, l32_.rlim_cur);
64 ASSERT_EQ(l32_.rlim_max, pr_l32_.rlim_max);
65 ASSERT_EQ(l64_.rlim_max, pr_l64_.rlim_max);
67 if (l64_.rlim_max == RLIM64_INFINITY) {
68 ASSERT_EQ(RLIM_INFINITY, l32_.rlim_max);
70 ASSERT_EQ(l64_.rlim_max, l32_.rlim_max);
74 // Force rlim_max to be bigger than a constant so we can continue following test.
75 // Change resource limit setting with "ulimit -Hc" in the shell if this test fails.
76 TEST_F(SysResourceTest, RLIMIT_CORE_rlim_max_not_zero) {
77 ASSERT_TRUE(l32_.rlim_max == RLIM_INFINITY || l32_.rlim_max >= 456U) <<
78 "RLIMIT_CORE rlim_max = " << l32_.rlim_max;
81 TEST_F(SysResourceTest, get_resource_limit_equal) {
82 CheckResourceLimits();
85 TEST_F(SysResourceTest, setrlimit) {
87 ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32_));
88 CheckResourceLimits();
89 ASSERT_EQ(123U, l32_.rlim_cur);
92 TEST_F(SysResourceTest, setrlimit64) {
94 ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64_));
95 CheckResourceLimits();
96 ASSERT_EQ(456U, l64_.rlim_cur);
99 TEST_F(SysResourceTest, prlimit) {
100 pr_l32_.rlim_cur = pr_l32_.rlim_max;
101 ASSERT_EQ(0, prlimit(0, RLIMIT_CORE, &pr_l32_, nullptr));
102 CheckResourceLimits();
103 ASSERT_EQ(pr_l32_.rlim_max, pr_l32_.rlim_cur);
106 TEST_F(SysResourceTest, prlimit64) {
107 pr_l64_.rlim_cur = pr_l64_.rlim_max;
108 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &pr_l64_, nullptr));
109 CheckResourceLimits();
110 ASSERT_EQ(pr_l64_.rlim_max, pr_l64_.rlim_cur);