1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #include <sys/resource.h>
18
19 #include <gtest/gtest.h>
20
TEST(sys_resource,rlimit_struct_size)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));
25 #else
26 ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
27 ASSERT_EQ(4U, sizeof(rlim_t));
28 #endif
29 }
30
31 class SysResourceTest : public ::testing::Test {
32 protected:
SetUp()33 virtual void SetUp() {
34 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
35 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
36 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64_));
37 }
38
39 void CheckResourceLimits();
40
41 protected:
42 rlimit l32_;
43 rlimit64 l64_;
44 rlimit64 pr_l64_;
45 };
46
CheckResourceLimits()47 void SysResourceTest::CheckResourceLimits() {
48 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
49 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
50 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64_));
51 ASSERT_EQ(l64_.rlim_cur, pr_l64_.rlim_cur);
52 if (l64_.rlim_cur == RLIM64_INFINITY) {
53 ASSERT_EQ(RLIM_INFINITY, l32_.rlim_cur);
54 } else {
55 ASSERT_EQ(l64_.rlim_cur, l32_.rlim_cur);
56 }
57
58 ASSERT_EQ(l64_.rlim_max, pr_l64_.rlim_max);
59 if (l64_.rlim_max == RLIM64_INFINITY) {
60 ASSERT_EQ(RLIM_INFINITY, l32_.rlim_max);
61 } else {
62 ASSERT_EQ(l64_.rlim_max, l32_.rlim_max);
63 }
64 }
65
66 // Force rlim_max to be bigger than a constant so we can continue following test.
67 // Change resource limit setting with "ulimit -Hc" in the shell if this test fails.
TEST_F(SysResourceTest,RLIMIT_CORE_rlim_max_not_zero)68 TEST_F(SysResourceTest, RLIMIT_CORE_rlim_max_not_zero) {
69 ASSERT_TRUE(l32_.rlim_max == RLIM_INFINITY || l32_.rlim_max >= 456U) <<
70 "RLIMIT_CORE rlim_max = " << l32_.rlim_max;
71 }
72
TEST_F(SysResourceTest,get_resource_limit_equal)73 TEST_F(SysResourceTest, get_resource_limit_equal) {
74 CheckResourceLimits();
75 }
76
TEST_F(SysResourceTest,setrlimit)77 TEST_F(SysResourceTest, setrlimit) {
78 l32_.rlim_cur = 123U;
79 ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32_));
80 CheckResourceLimits();
81 ASSERT_EQ(123U, l32_.rlim_cur);
82 }
83
TEST_F(SysResourceTest,setrlimit64)84 TEST_F(SysResourceTest, setrlimit64) {
85 l64_.rlim_cur = 456U;
86 ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64_));
87 CheckResourceLimits();
88 ASSERT_EQ(456U, l64_.rlim_cur);
89 }
90
TEST_F(SysResourceTest,prlimit64)91 TEST_F(SysResourceTest, prlimit64) {
92 pr_l64_.rlim_cur = pr_l64_.rlim_max;
93 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &pr_l64_, NULL));
94 CheckResourceLimits();
95 ASSERT_EQ(pr_l64_.rlim_max, pr_l64_.rlim_cur);
96 }
97
TEST_F(SysResourceTest,prlimit)98 TEST_F(SysResourceTest, prlimit) {
99 // prlimit is prlimit64 on LP64 and unimplemented on 32-bit. So we only test prlimit64.
100 }
101