error.h

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/*
    clsync - file tree sync utility based on inotify/kqueue
 
    Copyright (C) 2013-2014 Dmitry Yu Okunev <dyokunev@ut.mephi.ru> 0x8E30679C
 
    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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef __CLSYNC_ERROR_H
#define __CLSYNC_ERROR_H
 
#define BACKTRACE_LENGTH    256
 
#ifdef _DEBUG_FORCE
#   define DEBUGLEVEL_LIMIT 255
#else
#   define DEBUGLEVEL_LIMIT 9
#endif
 
extern void _critical ( const char *const function_name, const char *fmt, ... );
#define critical(...)               _critical(__func__, __VA_ARGS__)
#define critical_on(cond) {debug(30, "critical_on: checking: %s", TOSTR(cond)); if (unlikely(cond)) {critical("Assert: "TOSTR(cond));}}
 
extern void _error ( const char *const function_name, const char *fmt, ... );
#define error(...)              _error(__func__, __VA_ARGS__)
#define error_on(cond)    {if (unlikely(cond)) {error("Error: ("TOSTR(cond)") != 0");}}
 
extern void _warning ( const char *const function_name, const char *fmt, ... );
#define warning(...)                _warning(__func__, __VA_ARGS__)
 
extern void _info ( const char *const function_name, const char *fmt, ... );
#define info(...)               _info(__func__, __VA_ARGS__)
 
#ifdef _DEBUG_SUPPORT
extern void _debug ( int debug_level, const char *const function_name, const char *fmt, ... );
#   define debug(debug_level, ...)          {if (debug_level < DEBUGLEVEL_LIMIT) _debug(debug_level, __func__, __VA_ARGS__);}
#   define error_or_debug(debug_level, ...)     ((debug_level)<0 ? _error(__func__, __VA_ARGS__) : _debug(debug_level, __func__, __VA_ARGS__))
#else
#   define debug(debug_level, ...)          {}
#   define error_or_debug(debug_level, ...)     ((debug_level)<0 ? _error(__func__, __VA_ARGS__) : (void)0)
 
#endif
 
#define debug_call(debug_level, code)           debug(debug_level, "%s -> %i", TOSTR(code), code)
 
#define critical_or_warning(cond, ...) ((cond) ? _critical : _warning)(__func__, __VA_ARGS__)
 
enum ipc_type {
    IPCT_PRIVATE,
    IPCT_SHARED,
};
typedef enum ipc_type ipc_type_t;
 
extern void error_init ( void *_outputmethod, int *_quiet, int *_verbose, int *_debug );
extern void error_init_ipc ( ipc_type_t ipc_type );
extern void error_deinit();
 
enum outputmethod {
    OM_STDERR = 0,
    OM_STDOUT,
    OM_SYSLOG,
 
    OM_MAX
};
typedef enum outputmethod outputmethod_t;
 
#endif