Files
harbour-core/harbour/include/hbtrace.h
1999-11-11 00:30:38 +00:00

129 lines
3.6 KiB
C

/*
* $Id$
*/
/*
* Harbour Project source code:
* Header file for trace macros and functions.
*
* Copyright 1999 Gonzalo Diethelm <gonzalo.diethelm@iname.com>
* www - http://www.harbour-project.org
*
* 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, with one exception:
*
* The exception is that if you link the Harbour Runtime Library (HRL)
* and/or the Harbour Virtual Machine (HVM) with other files to produce
* an executable, this does not by itself cause the resulting executable
* to be covered by the GNU General Public License. Your use of that
* executable is in no way restricted on account of linking the HRL
* and/or HVM code into it.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA (or visit
* their web site at http://www.gnu.org/).
*
*/
#ifndef HB_TRACE_H_
#define HB_TRACE_H_
/*
* Tracing levels.
*/
#define HB_TR_ALWAYS 0
#define HB_TR_FATAL 1
#define HB_TR_ERROR 2
#define HB_TR_WARNING 3
#define HB_TR_INFO 4
#define HB_TR_DEBUG 5
#define HB_TR_LAST 6
/*
* Default tracing level.
*/
#define HB_TR_DEFAULT HB_TR_WARNING
/*
* If we compiled without specifying a -DHB_TR_LEVEL, use the value
* for HB_TR_DEFAULT.
*/
#ifndef HB_TR_LEVEL
#define HB_TR_LEVEL HB_TR_DEFAULT
#endif
/*
* This is black magic...
* What we do here is to generate calls to HB_ECHO_CREATE only for those
* levels that are less or equal to the COMPILATION time HB_TR_LEVEL.
*/
#define HB_ECHO_CREATE(l, x) do \
{ \
if (hb_tr_level() >= l) { \
hb_tr_file_ = __FILE__; \
hb_tr_line_ = __LINE__; \
hb_tr_level_ = l; \
hb_tr_trace x ; \
} \
} while (0)
#if HB_TR_LEVEL >= HB_TR_DEBUG
#define HB_ECHO_TRACE_HB_TR_DEBUG(x) HB_ECHO_CREATE(HB_TR_DEBUG, x)
#else
#define HB_ECHO_TRACE_HB_TR_DEBUG(x)
#endif
#if HB_TR_LEVEL >= HB_TR_INFO
#define HB_ECHO_TRACE_HB_TR_INFO(x) HB_ECHO_CREATE(HB_TR_INFO, x)
#else
#define HB_ECHO_TRACE_HB_TR_INFO(x)
#endif
#if HB_TR_LEVEL >= HB_TR_WARNING
#define HB_ECHO_TRACE_HB_TR_WARNING(x) HB_ECHO_CREATE(HB_TR_WARNING, x)
#else
#define HB_ECHO_TRACE_HB_TR_WARNING(x)
#endif
#if HB_TR_LEVEL >= HB_TR_ERROR
#define HB_ECHO_TRACE_HB_TR_ERROR(x) HB_ECHO_CREATE(HB_TR_ERROR, x)
#else
#define HB_ECHO_TRACE_HB_TR_ERROR(x)
#endif
#if HB_TR_LEVEL >= HB_TR_FATAL
#define HB_ECHO_TRACE_HB_TR_FATAL(x) HB_ECHO_CREATE(HB_TR_FATAL, x)
#else
#define HB_ECHO_TRACE_HB_TR_FATAL(x)
#endif
#if 1 /* always! */
#define HB_ECHO_TRACE_HB_TR_ALWAYS(x) HB_ECHO_CREATE(HB_TR_ALWAYS, x)
#else
#define HB_ECHO_TRACE_HB_TR_ALWAYS(x)
#endif
#define HB_TRACE(l, x) HB_ECHO_TRACE_##l(x)
extern char * hb_tr_file_;
extern int hb_tr_line_;
extern int hb_tr_level_;
extern void hb_tr_trace( char* fmt, ... );
extern int hb_tr_level(void);
#endif /* HB_TRACE_H_ */