/* Copyright (C) 2007 J.F.Dockes
 *   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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef _xmacros_h_included_
#define _xmacros_h_included_

// Generic Xapian exception catching code. We do this quite often,
// and I have no idea how to do this except for a macro
#define XCATCHERROR(MSG) \
    catch (const Xapian::Error &e) {                                    \
        MSG = e.get_msg();                                              \
        if (MSG.empty()) MSG = "Empty error message";                   \
    } catch (const std::string &s) {                                    \
        MSG = s;                                                        \
        if (MSG.empty()) MSG = "Empty error message";                   \
    } catch (const char *s) {                                           \
        MSG = s;                                                        \
        if (MSG.empty()) MSG = "Empty error message";                   \
    } catch (std::exception& ex) {                                      \
        MSG = std::string("Caught std::exception: ") + ex.what();       \
    } catch (...) {                                                     \
        MSG = std::string("Caught unknown exception??");                \
    }

#define XAPTRY(STMTTOTRY, XAPDB, ERSTR)                         \
    for (int tries = 0; tries < 2; tries++) {                   \
        try {                                                   \
            STMTTOTRY;                                          \
            ERSTR.erase();                                      \
            break;                                              \
        } catch (const Xapian::DatabaseModifiedError &e) {      \
            ERSTR = e.get_msg();                                \
            XAPDB.reopen();                                     \
            continue;                                           \
        } XCATCHERROR(ERSTR);                                   \
        break;                                                  \
    }

#endif
