ClickHouse/contrib/libpoco/Foundation/src/Error.cpp

85 lines
1.9 KiB
C++

//
// Error.cpp
//
// $Id: //poco/1.4/Foundation/src/Error.cpp#3 $
//
// Library: Foundation
// Package: Core
// Module: Error
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Foundation.h"
#include "Poco/UnicodeConverter.h"
#include "Poco/Error.h"
#include <string>
#include <string.h>
#include <errno.h>
namespace Poco {
#ifdef POCO_OS_FAMILY_WINDOWS
DWORD Error::last()
{
return GetLastError();
}
std::string Error::getMessage(DWORD errorCode)
{
std::string errMsg;
DWORD dwFlg = FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
#if defined(POCO_WIN32_UTF8) && !defined(POCO_NO_WSTRING)
LPWSTR lpMsgBuf = 0;
if (FormatMessageW(dwFlg, 0, errorCode, 0, (LPWSTR) & lpMsgBuf, 0, NULL))
UnicodeConverter::toUTF8(lpMsgBuf, errMsg);
#else
LPTSTR lpMsgBuf = 0;
if (FormatMessageA(dwFlg, 0, errorCode, 0, (LPTSTR) & lpMsgBuf, 0, NULL))
errMsg = lpMsgBuf;
#endif
LocalFree(lpMsgBuf);
return errMsg;
}
#else
int Error::last()
{
return errno;
}
std::string Error::getMessage(int errorCode)
{
/* Reentrant version of `strerror'.
There are 2 flavors of `strerror_r', GNU which returns the string
and may or may not use the supplied temporary buffer and POSIX one
which fills the string into the buffer.
To use the POSIX version, -D_XOPEN_SOURCE=600 or -D_POSIX_C_SOURCE=200112L
without -D_GNU_SOURCE is needed, otherwise the GNU version is
preferred.
*/
#if defined _GNU_SOURCE && !POCO_ANDROID
char errmsg[256] = "";
return std::string(strerror_r(errorCode, errmsg, 256));
#elif (_XOPEN_SOURCE >= 600) || POCO_ANDROID
char errmsg[256] = "";
strerror_r(errorCode, errmsg, 256);
return errmsg;
#else
return std::string(strerror(errorCode));
#endif
}
#endif
} // namespace Poco