59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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// SPDX-FileCopyrightText: 2013 Dolphin Emulator Project
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// SPDX-FileCopyrightText: 2014 Citra Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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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/error.h"
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namespace Common {
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// glibc, mlibc, musl, and newlib all define their own variants of strerror_r
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// We don't need to use the preprocessor, we can just select depending on return type
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template<typename T> std::string HandleStrerrorR(T r, char *err_str);
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template<> std::string HandleStrerrorR(char* r, char *) { return std::string{r}; }
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template<> std::string HandleStrerrorR(const char* r, char *) { return std::string{r}; }
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template<> std::string HandleStrerrorR(int r, char *err_str) {
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return std::string{r != 0
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? "(strerror_r failed to format error)"
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: err_str};
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}
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std::string NativeErrorToString(int e) {
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#ifdef _WIN32
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LPSTR err_str;
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DWORD res = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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nullptr, e, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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LPSTR(&err_str), 1, nullptr);
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if (res) {
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std::string ret(err_str);
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LocalFree(err_str);
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return ret;
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}
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return "(FormatMessageA failed to format error)";
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#else
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char err_str[255];
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return HandleStrerrorR(strerror_r(e, err_str, sizeof(err_str)), err_str);
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#endif // _WIN32
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}
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std::string GetLastErrorMsg() {
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#ifdef _WIN32
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return NativeErrorToString(GetLastError());
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#else
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return NativeErrorToString(errno);
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#endif
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}
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} // namespace Common
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