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// Copyright 2019 The gVisor Authors.
//
// 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 "test/util/rlimit_util.h"
#include <sys/resource.h>
#include <cerrno>
#include "test/util/cleanup.h"
#include "test/util/logging.h"
#include "test/util/posix_error.h"
#include "test/util/test_util.h"
namespace gvisor {
namespace testing {
PosixErrorOr<Cleanup> ScopedSetSoftRlimit(int resource, rlim_t newval) {
struct rlimit old_rlim;
if (getrlimit(resource, &old_rlim) != 0) {
return PosixError(errno, "getrlimit failed");
}
struct rlimit new_rlim = old_rlim;
new_rlim.rlim_cur = newval;
if (setrlimit(resource, &new_rlim) != 0) {
return PosixError(errno, "setrlimit failed");
}
return Cleanup([resource, old_rlim] {
TEST_PCHECK(setrlimit(resource, &old_rlim) == 0);
});
}
} // namespace testing
} // namespace gvisor
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