/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*- * * librsync -- generate and apply network deltas * $Id$ * * Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* * TODO: A function like perror that includes strerror output. Apache * does this by adding flags as well as the severity level which say * whether such information should be included. */ /* * trace may be turned off. * * error is always on, but you can return and continue in some way * * fatal terminates the whole process */ void rs_fatal0(char const *s, ...); void rs_error0(char const *s, ...); void rs_trace0(char const *s, ...); void rs_log0_nofn(int level, char const *fmt, ...); #ifdef __GNUC__ void rs_log0(int level, char const *fn, char const *fmt, ...) __attribute__ ((format(printf, 3, 4))); #ifdef DO_RS_TRACE # define rs_trace(fmt, arg...) \ do { rs_log0(RS_LOG_DEBUG, __FUNCTION__, fmt , ##arg); \ } while (0) #else # define rs_trace(s, str...) #endif /* !DO_RS_TRACE */ /* * TODO: Don't assume this is a gcc thing; rather test in autoconf for * support for __FUNCTION__ and varargs macros. One simple way might * just be to try compiling the definition of one of these functions! * * TODO: Also look for the C9X predefined identifier `_function', or * whatever it's called. */ #define rs_log(l, s, str...) do { \ rs_log0((l), __FUNCTION__, (s) , ##str); \ } while (0) #define rs_error(s, str...) do { \ rs_log0(RS_LOG_ERR, __FUNCTION__, (s) , ##str); \ } while (0) #define rs_fatal(s, str...) do { \ rs_log0(RS_LOG_CRIT, __FUNCTION__, \ (s) , ##str); \ abort(); \ } while (0) #else /************************* ! __GNUC__ */ # define rs_fatal rs_fatal0 # define rs_error rs_error0 # define rs_log rs_log0_nofn # ifdef DO_RS_TRACE # define rs_trace rs_trace0 # endif /* DO_RS_TRACE */ #endif /* ! __GNUC__ */ void rs_log0(int level, char const *fn, char const *fmt, ...); enum { RS_LOG_PRIMASK = 7, /**< Mask to extract priority part. \internal */ RS_LOG_NONAME = 8 /**< \b Don't show function name in message. */ }; /** * \macro rs_trace_enabled() * * Call this before putting too much effort into generating trace * messages. */ extern int rs_trace_level; #ifdef DO_RS_TRACE # define rs_trace_enabled() ((rs_trace_level & RS_LOG_PRIMASK) >= RS_LOG_DEBUG) #else # define rs_trace_enabled() 0 #endif