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