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/* error.c -- Error reporting routines for Khepera
* Created: Wed Dec 21 12:55:00 1994 by faith@cs.unc.edu
* Revised: Fri Jul 11 16:16:05 1997 by faith@acm.org
* Copyright 1994, 1995, 1996, 1997 Rickard E. Faith (faith@acm.org)
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: error.c,v 1.15 1997/07/11 20:17:48 faith Exp $
*
* \section{Error Reporting Routines}
*
* \intro Several error reporting routines are provided. These routines
* are always used to print errors generated within the \khepera library,
* and are available for the programmer as well.
*
*/
#include "maaP.h"
#include <errno.h>
const char *_err_programName;
/* \doc |err_set_program_name| records the value of |argv[0]| for the
calling program. If this value is not "NULL", then it will be used when
printing errors and warnings. */
void err_set_program_name( const char *programName )
{
const char *pt =strrchr( programName, '/' );
if (pt)
_err_programName = pt + 1;
else
_err_programName = programName;
}
/* \doc |err_program_name| returns the value of |programName| that was
previously set with |err_set_program_name|. This value may be
"NULL". */
const char *err_program_name( void )
{
return _err_programName;
}
/* \doc |err_fatal| flushes "stdout", prints a fatal error report on
"stderr", flushes "stderr" and "stdout", and calls |exit|. |routine| is
the name of the routine in which the error took place. */
void err_fatal( const char *routine, const char *format, ... )
{
va_list ap;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): ", _err_programName, routine );
else
fprintf( stderr, "%s: ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: ", routine );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error_va( routine, format, ap );
va_end( ap );
fflush( stderr );
fflush( stdout );
exit( 1 );
}
/* \doc |err_fatal_errno| flushes "stdout", prints a fatal error report on
"stderr", prints the system error corresponding to |errno|, flushes
"stderr" and "stdout", and calls |exit|. |routine| is the name of the
routine in which the error took place. */
void err_fatal_errno( const char *routine, const char *format, ... )
{
va_list ap;
int errorno = errno;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): ", _err_programName, routine );
else
fprintf( stderr, "%s: ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: ", routine );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error_va( routine, format, ap );
va_end( ap );
#if HAVE_STRERROR
fprintf( stderr, "%s: %s\n", routine, strerror( errorno ) );
log_error( routine, "%s: %s\n", routine, strerror( errorno ) );
#else
errno = errorno;
perror( routine );
log_error( routine, "%s: errno = %d\n", routine, errorno );
#endif
fflush( stderr );
fflush( stdout );
exit( 1 );
}
/* \doc |err_warning| flushes "stdout", prints a non-fatal warning on
"stderr", and returns to the caller. |routine| is the name of the
calling routine. */
void err_warning( const char *routine, const char *format, ... )
{
va_list ap;
fflush( stdout );
fflush( stderr );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): ", _err_programName, routine );
else
fprintf( stderr, "%s: ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: ", routine );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error_va( routine, format, ap );
va_end( ap );
}
/* \doc |err_internal| flushes "stdout", prints the fatal error message,
flushes "stderr" and "stdout", and calls |abort| so that a core dump is
generated. */
void err_internal( const char *routine, const char *format, ... )
{
va_list ap;
fflush( stdout );
if (_err_programName) {
if (routine)
fprintf( stderr, "%s (%s): Internal error\n ",
_err_programName, routine );
else
fprintf( stderr, "%s: Internal error\n ", _err_programName );
} else {
if (routine) fprintf( stderr, "%s: Internal error\n ", routine );
else fprintf( stderr, "Internal error\n " );
}
va_start( ap, format );
vfprintf( stderr, format, ap );
log_error( routine, format, ap );
va_end( ap );
if (_err_programName)
fprintf( stderr, "Aborting %s...\n", _err_programName );
else
fprintf( stderr, "Aborting...\n" );
fflush( stderr );
fflush( stdout );
abort();
}
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