error_code.hpp

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/*
 * Copyright (c) 2014-2015, Hewlett-Packard Development Company, LP.
 * 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
 *
 * HP designates this particular file as subject to the "Classpath" exception
 * as provided by HP in the LICENSE.txt file that accompanied this code.
 */
#ifndef FOEDUS_ERROR_CODE_HPP_
#define FOEDUS_ERROR_CODE_HPP_

namespace foedus {

#define X(a, b, c)  a = b,

enum ErrorCode {
  kErrorCodeOk = 0,
#include "foedus/error_code.xmacro" // NOLINT
};
#undef X

const char* get_error_name(ErrorCode code);

const char* get_error_message(ErrorCode code);

// A bit tricky to get "a" from a in C macro.
#define X_QUOTE(str) #str
#define X_EXPAND_AND_QUOTE(str) X_QUOTE(str)
#define X(a, b, c) case a: return X_EXPAND_AND_QUOTE(a);
inline const char* get_error_name(ErrorCode code) {
  switch (code) {
    case kErrorCodeOk: return "kErrorCodeOk";
#include "foedus/error_code.xmacro" // NOLINT
  }
  return "Unexpected error code";
}
#undef X
#undef X_EXPAND_AND_QUOTE
#undef X_QUOTE

#define X(a, b, c) case a: return c;
inline const char* get_error_message(ErrorCode code) {
  switch (code) {
    case kErrorCodeOk: return "no_error";
#include "foedus/error_code.xmacro" // NOLINT
  }
  return "Unexpected error code";
}
#undef X
}  // namespace foedus

#define CHECK_ERROR_CODE(x)\
{\
  foedus::ErrorCode __e = x;\
  if (UNLIKELY(__e != kErrorCodeOk)) {\
    return __e;\
  }\
}

#endif  // FOEDUS_ERROR_CODE_HPP_