39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
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// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cstddef>
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <cerrno>
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#include <cstring>
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#endif
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#include "common/common_funcs.h"
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// Generic function to get last error message.
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// Call directly after the command or use the error num.
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// This function might change the error code.
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std::string GetLastErrorMsg() {
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static constexpr std::size_t buff_size = 255;
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char err_str[buff_size];
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#ifdef _WIN32
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FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), err_str, buff_size, nullptr);
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return std::string(err_str, buff_size);
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#elif defined(__GLIBC__) && (_GNU_SOURCE || (_POSIX_C_SOURCE < 200112L && _XOPEN_SOURCE < 600))
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// Thread safe (GNU-specific)
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const char* str = strerror_r(errno, err_str, buff_size);
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return std::string(str);
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#else
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// Thread safe (XSI-compliant)
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const int success = strerror_r(errno, err_str, buff_size);
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if (success != 0) {
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return {};
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}
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return std::string(err_str);
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#endif
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}
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