/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- * Copyright (c) 2023, gperftools Contributors * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef SAFE_STRERROR_H #define SAFE_STRERROR_H #include "config.h" #include "base/basictypes.h" namespace tcmalloc { // SafeStrError works pretty much like strerror, but it bypasses all // the locale stuff (which will malloc occasionally). It simply // returns errno constant name (like "ENOMEM"), or if errno is not // recognized it will return "errno " string (kept in internal // buf_ buffer). class SafeStrError { public: explicit ATTRIBUTE_VISIBILITY_HIDDEN SafeStrError(int errnum); const char* c_str() { return result_; } private: const char* result_; char buf_[32]; }; } // namespace tcmalloc #endif // SAFE_STRERROR_H