/* * Copyright (C) 2013 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. */ #ifndef ERRNO_RESTORER_H #define ERRNO_RESTORER_H #include <errno.h> class ErrnoRestorer { public: explicit ErrnoRestorer() : saved_errno_(errno) { } ~ErrnoRestorer() { errno = saved_errno_; } void override(int new_errno) { saved_errno_ = new_errno; } private: int saved_errno_; // Disallow copy and assignment. ErrnoRestorer(const ErrnoRestorer&); void operator=(const ErrnoRestorer&); }; #endif // ERRNO_RESTORER_H