1// Copyright 2015 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "sandbox/linux/services/resource_limits.h" 6 7#include <sys/resource.h> 8#include <sys/time.h> 9 10#include <algorithm> 11 12namespace sandbox { 13 14// static 15bool ResourceLimits::Lower(int resource, rlim_t limit) { 16 struct rlimit old_rlimit; 17 if (getrlimit(resource, &old_rlimit)) 18 return false; 19 // Make sure we don't raise the existing limit. 20 const struct rlimit new_rlimit = {std::min(old_rlimit.rlim_cur, limit), 21 std::min(old_rlimit.rlim_max, limit)}; 22 int rc = setrlimit(resource, &new_rlimit); 23 return rc == 0; 24} 25 26} // namespace sandbox 27