1 /* 2 * Copyright (C) 2013 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 #ifndef ERRNO_RESTORER_H 18 #define ERRNO_RESTORER_H 19 20 #include <errno.h> 21 22 #include "bionic_macros.h" 23 24 class ErrnoRestorer { 25 public: 26 explicit ErrnoRestorer() : saved_errno_(errno) { 27 } 28 29 ~ErrnoRestorer() { 30 errno = saved_errno_; 31 } 32 33 void override(int new_errno) { 34 saved_errno_ = new_errno; 35 } 36 37 private: 38 int saved_errno_; 39 40 DISALLOW_COPY_AND_ASSIGN(ErrnoRestorer); 41 }; 42 43 #endif // ERRNO_RESTORER_H 44
