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 <gtest/gtest.h>
18
19 #include <sys/resource.h>
20
21 #if defined(__GLIBC__)
22 /* The host glibc we're currently building with doesn't have prlimit64 yet. */
prlimit64(pid_t,int resource,const struct rlimit64 * new_limit,struct rlimit64 * old_limit)23 static int prlimit64(pid_t, int resource, const struct rlimit64* new_limit, struct rlimit64* old_limit) {
24 if (new_limit != NULL) {
25 return setrlimit64(resource, new_limit);
26 } else {
27 return getrlimit64(resource, old_limit);
28 }
29 }
30 #endif
31
TEST(sys_resource,smoke)32 TEST(sys_resource, smoke) {
33 #if defined(__LP64__) || defined(__GLIBC__)
34 ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64));
35 ASSERT_EQ(8U, sizeof(rlim_t));
36 #else
37 ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
38 ASSERT_EQ(4U, sizeof(rlim_t));
39 #endif
40
41 // Read with getrlimit, getrlimit64, and prlimit64.
42 // (prlimit is prlimit64 on LP64 and unimplemented on 32-bit.)
43 rlimit l32;
44 rlimit64 l64;
45 rlimit64 pr_l64;
46 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
47 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
48 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
49 ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
50 ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
51 ASSERT_EQ(l64.rlim_max, pr_l64.rlim_max);
52 if (l64.rlim_max == RLIM64_INFINITY) {
53 ASSERT_EQ(RLIM_INFINITY, l32.rlim_max);
54 } else {
55 ASSERT_EQ(l64.rlim_max, l32.rlim_max);
56 }
57
58 // Write with setrlimit and read back with everything.
59 l32.rlim_cur = 123;
60 ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32));
61 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
62 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
63 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
64 ASSERT_EQ(123U, l32.rlim_cur);
65 ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
66 ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
67
68 // Write with setrlimit64 and read back with everything.
69 l64.rlim_cur = 456;
70 ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64));
71 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
72 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
73 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
74 ASSERT_EQ(456U, l32.rlim_cur);
75 ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
76 ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
77
78 // Write with prlimit64 and read back with everything.
79 l64.rlim_cur = 789;
80 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &l64, NULL));
81 ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
82 ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
83 ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
84 ASSERT_EQ(789U, l32.rlim_cur);
85 ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
86 ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
87 }
88