?? error_number.h
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// rak - Rakshasa's toolbox// Copyright (C) 2005-2006, Jari Sundell//// This program is free software; you can redistribute it and/or modify// it under the terms of the GNU General Public License as published by// the Free Software Foundation; either version 2 of the License, or// (at your option) any later version.// // This program is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.// // You should have received a copy of the GNU General Public License// along with this program; if not, write to the Free Software// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA//// In addition, as a special exception, the copyright holders give// permission to link the code of portions of this program with the// OpenSSL library under certain conditions as described in each// individual source file, and distribute linked combinations// including the two.//// You must obey the GNU General Public License in all respects for// all of the code used other than OpenSSL. If you modify file(s)// with this exception, you may extend this exception to your version// of the file(s), but you are not obligated to do so. If you do not// wish to do so, delete this exception statement from your version.// If you delete this exception statement from all source files in the// program, then also delete it here.//// Contact: Jari Sundell <jaris@ifi.uio.no>//// Skomakerveien 33// 3185 Skoppum, NORWAY#ifndef RAK_ERROR_NUMBER_H#define RAK_ERROR_NUMBER_H#include <cerrno>#include <cstring>namespace rak {class error_number {public: static const int e_access = EACCES; static const int e_again = EAGAIN; static const int e_connreset = ECONNRESET; static const int e_connaborted = ECONNABORTED; static const int e_deadlk = EDEADLK; static const int e_noent = ENOENT; static const int e_nomem = ENOMEM; static const int e_notdir = ENOTDIR; static const int e_intr = EINTR; error_number() : m_errno(0) {} error_number(int e) : m_errno(e) {} bool is_valid() const { return m_errno != 0; } int value() const { return m_errno; } const char* c_str() const { return strerror(m_errno); } bool is_blocked_momentary() const { return m_errno == e_again || m_errno == e_intr; } bool is_blocked_prolonged() const { return m_errno == e_deadlk; } bool is_closed() const { return m_errno == e_connreset || m_errno == e_connaborted; } bool is_bad_path() const { return m_errno == e_noent || m_errno == e_notdir || m_errno == e_access; } static error_number current() { return errno; } static void clear_global() { errno = 0; } bool operator == (const error_number& e) const { return m_errno == e.m_errno; }private: int m_errno;};}#endif
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