1 /* 2 * Copyright (C) 2016 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 // Portable error handling functions. This is only necessary for host-side 18 // code that needs to be cross-platform; code that is only run on Unix should 19 // just use errno and strerror() for simplicity. 20 // 21 // There is some complexity since Windows has (at least) three different error 22 // numbers, not all of which share the same type: 23 // * errno: for C runtime errors. 24 // * GetLastError(): Windows non-socket errors. 25 // * WSAGetLastError(): Windows socket errors. 26 // errno can be passed to strerror() on all platforms, but the other two require 27 // special handling to get the error string. Refer to Microsoft documentation 28 // to determine which error code to check for each function. 29 30 #ifndef ANDROID_BASE_ERRORS_H 31 #define ANDROID_BASE_ERRORS_H 32 33 #include <string> 34 35 namespace android { 36 namespace base { 37 38 // Returns a string describing the given system error code. |error_code| must 39 // be errno on Unix or GetLastError()/WSAGetLastError() on Windows. Passing 40 // errno on Windows has undefined behavior. 41 std::string SystemErrorCodeToString(int error_code); 42 43 } // namespace base 44 } // namespace android 45 46 #endif // ANDROID_BASE_ERRORS_H 47
