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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <sys/resource.h>
#if defined(__GLIBC__)
/* The host glibc we're currently building with doesn't have prlimit64 yet. */
static int prlimit64(pid_t, int resource, const struct rlimit64* new_limit, struct rlimit64* old_limit) {
if (new_limit != NULL) {
return setrlimit64(resource, new_limit);
} else {
return getrlimit64(resource, old_limit);
}
}
#endif
TEST(sys_resource, smoke) {
#if defined(__LP64__) || defined(__GLIBC__)
ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64));
ASSERT_EQ(8U, sizeof(rlim_t));
#else
ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
ASSERT_EQ(4U, sizeof(rlim_t));
#endif
// Read with getrlimit, getrlimit64, and prlimit64.
// (prlimit is prlimit64 on LP64 and unimplemented on 32-bit.)
rlimit l32;
rlimit64 l64;
rlimit64 pr_l64;
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
ASSERT_EQ(l64.rlim_max, pr_l64.rlim_max);
if (l64.rlim_max == RLIM64_INFINITY) {
ASSERT_EQ(RLIM_INFINITY, l32.rlim_max);
} else {
ASSERT_EQ(l64.rlim_max, l32.rlim_max);
}
// Write with setrlimit and read back with everything.
l32.rlim_cur = 123;
ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(123U, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
// Write with setrlimit64 and read back with everything.
l64.rlim_cur = 456;
ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(456U, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
// Write with prlimit64 and read back with everything.
l64.rlim_cur = 789;
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &l64, NULL));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(789U, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
}
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