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. */ 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 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
