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/* error.c -- Error reporting routines for Khepera
* Created: Wed Dec 21 12:55:00 1994 by faith@dict.org
* Copyright 1994-1997, 2002 Rickard E. Faith (faith@dict.org)
* Copyright 2002-2008 Aleksey Cheusov (vle@gmx.net)
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* \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)
{
if (!programName){
_err_programName = programName;
return;
}
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;
va_list ap_copy;
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);
va_copy(ap_copy, ap);
vfprintf(stderr, format, ap);
fprintf(stderr, "\n");
log_error_va(routine, format, ap_copy);
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;
va_list ap_copy;
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);
va_copy(ap_copy, ap);
vfprintf(stderr, format, ap);
log_error_va(routine, format, ap_copy);
va_end(ap);
fprintf(stderr, " %s: %s\n", routine, strerror(errorno));
log_error(routine, "%s: %s", routine, strerror(errorno));
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;
va_list ap_copy;
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);
va_copy(ap_copy, ap);
vfprintf(stderr, format, ap);
fprintf(stderr, "\n");
log_error_va(routine, format, ap_copy);
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;
va_list ap_copy;
va_start(ap, format);
va_copy(ap_copy, 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 ");
}
vfprintf(stderr, format, ap);
fprintf(stderr, "\n");
log_error_va(routine, format, ap_copy);
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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