1 /* 2 * Copyright (C) 2018 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 "functor_utils.h" 18 19 #include <errno.h> 20 #include <string.h> 21 #include <sys/resource.h> 22 #include <utils/Log.h> 23 24 namespace android { 25 RaiseFileNumberLimit()26void RaiseFileNumberLimit() { 27 static bool have_raised_limit = false; 28 if (have_raised_limit) 29 return; 30 31 have_raised_limit = true; 32 struct rlimit limit_struct; 33 limit_struct.rlim_cur = 0; 34 limit_struct.rlim_max = 0; 35 if (getrlimit(RLIMIT_NOFILE, &limit_struct) == 0) { 36 limit_struct.rlim_cur = limit_struct.rlim_max; 37 if (setrlimit(RLIMIT_NOFILE, &limit_struct) != 0) { 38 ALOGE("setrlimit failed: %s", strerror(errno)); 39 } 40 } else { 41 ALOGE("getrlimit failed: %s", strerror(errno)); 42 } 43 } 44 45 } // namespace android 46