123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*-
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*
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* librsync -- generate and apply network deltas
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* Id: trace.h,v 1.24 2001/03/18 14:42:28 mbp Exp
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*
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* Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* TODO: A function like perror that includes strerror output. Apache
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* does this by adding flags as well as the severity level which say
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* whether such information should be included.
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*/
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/*
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* trace may be turned off.
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*
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* error is always on, but you can return and continue in some way
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*
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* fatal terminates the whole process
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*/
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void rs_fatal0(char const *s, ...);
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void rs_error0(char const *s, ...);
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void rs_trace0(char const *s, ...);
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void rs_log0_nofn(int level, char const *fmt, ...);
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#ifdef __GNUC__
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void rs_log0(int level, char const *fn, char const *fmt, ...)
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__attribute__ ((format(printf, 3, 4)));
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#ifdef DO_RS_TRACE
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# define rs_trace(fmt, arg...) \
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do { rs_log0(RS_LOG_DEBUG, __FUNCTION__, fmt , ##arg); \
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} while (0)
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#else
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# define rs_trace(s, str...)
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#endif /* !DO_RS_TRACE */
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/*
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* TODO: Don't assume this is a gcc thing; rather test in autoconf for
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* support for __FUNCTION__ and varargs macros. One simple way might
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* just be to try compiling the definition of one of these functions!
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*
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* TODO: Also look for the C9X predefined identifier `_function', or
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* whatever it's called.
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*/
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#define rs_log(l, s, str...) do { \
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rs_log0((l), __FUNCTION__, (s) , ##str); \
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} while (0)
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#define rs_error(s, str...) do { \
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rs_log0(RS_LOG_ERR, __FUNCTION__, (s) , ##str); \
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} while (0)
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#define rs_fatal(s, str...) do { \
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rs_log0(RS_LOG_CRIT, __FUNCTION__, \
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(s) , ##str); \
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abort(); \
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} while (0)
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#else /************************* ! __GNUC__ */
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# define rs_fatal rs_fatal0
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# define rs_error rs_error0
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# define rs_log rs_log0_nofn
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# ifdef DO_RS_TRACE
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# define rs_trace rs_trace0
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# endif /* DO_RS_TRACE */
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#endif /* ! __GNUC__ */
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void rs_log0(int level, char const *fn, char const *fmt, ...);
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enum {
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RS_LOG_PRIMASK = 7, /**< Mask to extract priority
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part. \internal */
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RS_LOG_NONAME = 8 /**< \b Don't show function name in
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message. */
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};
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/**
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* \macro rs_trace_enabled()
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*
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* Call this before putting too much effort into generating trace
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* messages.
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*/
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extern int rs_trace_level;
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#ifdef DO_RS_TRACE
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# define rs_trace_enabled() ((rs_trace_level & RS_LOG_PRIMASK) >= RS_LOG_DEBUG)
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#else
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# define rs_trace_enabled() 0
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#endif
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