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/*
COMMON TRACE
Common header file for tracing.
Copyright (C) Dmitri Pal <dpal@redhat.com> 2009
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 COMMON_TRACE_H
#define COMMON_TRACE_H
#ifdef TRACE_LEVEL
#define HAVE_TRACE
#include <stdio.h>
/* The trace level is a bit mask */
#define TRACE_FLOW 0x0000001 /* - trace messages that are entry exit into functions */
#define TRACE_ERROR 0x0000002 /* - trace messages that are errors */
#define TRACE_INFO 0x0000004 /* - trace things that are informational */
#ifdef TRACE_HOME /* Define this in the module that contains main */
unsigned trace_level = TRACE_LEVEL;
#else
extern unsigned trace_level;
#endif /* TRACE_HOME */
#endif /* TRACE_LEVEL */
#ifdef HAVE_TRACE
/* Tracing strings */
#define TRACE_STRING(level,message,str) if(level & trace_level) \
printf("[DEBUG] %23s (%4d) %s %s\n",__FILE__,__LINE__,message,str);
/* Convenience wrappers for strings */
#define TRACE_FLOW_STRING(message,str) TRACE_STRING(TRACE_FLOW,message,str)
#define TRACE_ERROR_STRING(message,str) TRACE_STRING(TRACE_ERROR,message,str)
#define TRACE_INFO_STRING(message,str) TRACE_STRING(TRACE_INFO,message,str)
/* Tracing numbers */
#define TRACE_NUMBER(level,message,number) if(level & trace_level) \
printf("[DEBUG] %23s (%4d) %s %lu\n",__FILE__,__LINE__,message,(unsigned long int)(number));
/* Convenience wrappers for numbers */
#define TRACE_FLOW_NUMBER(message,number) TRACE_NUMBER(TRACE_FLOW,message,number)
#define TRACE_ERROR_NUMBER(message,number) TRACE_NUMBER(TRACE_ERROR,message,number)
#define TRACE_INFO_NUMBER(message,number) TRACE_NUMBER(TRACE_INFO,message,number)
/* Tracing doubles */
#define TRACE_DOUBLE(level,message,number) if(level & trace_level) \
printf("[DEBUG] %23s (%4d) %s %e\n",__FILE__,__LINE__,message,(double)(number));
/* Convenience wrappers for numbers */
#define TRACE_FLOW_DOUBLE(message,number) TRACE_DOUBLE(TRACE_FLOW,message,number)
#define TRACE_ERROR_DOUBLE(message,number) TRACE_DOUBLE(TRACE_ERROR,message,number)
#define TRACE_INFO_DOUBLE(message,number) TRACE_DOUBLE(TRACE_INFO,message,number)
/* Assertion */
#define TRACE_ASSERT(expression) expression ? ; : printf("ASSERTION FAILED\n");
#else
/* Noop in case the tracing is disabled */
#define TRACE_STRING(level,message,str) ;
#define TRACE_NUMBER(level,message,number) ;
#define TRACE_DOUBLE(level,message,number) ;
#define TRACE_FLOW_STRING(message,str) ;
#define TRACE_ERROR_STRING(message,str) ;
#define TRACE_INFO_STRING(message,str) ;
#define TRACE_FLOW_NUMBER(message,str) ;
#define TRACE_ERROR_NUMBER(message,str) ;
#define TRACE_INFO_NUMBER(message,str) ;
#define TRACE_FLOW_DOUBLE(message,str) ;
#define TRACE_ERROR_DOUBLE(message,str) ;
#define TRACE_INFO_DOUBLE(message,str) ;
#define TRACE_ASSERT(expression) ;
#endif /* HAVE_TRACE */
#endif /* COMMON_TRACE_H */
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