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xmacros.h    52 lines (47 with data), 2.1 kB

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/* 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.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 (...) { \
MSG = "Caught unknown xapian 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