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a small step towards standardized comedi error codes

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This commit is contained in:
Frank Mori Hess 2001-05-02 00:08:28 +00:00
parent b96bdf794d
commit 798386252d
2 changed files with 49 additions and 4 deletions
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43
lib/comedi_errno.h Normal file
View file

@ -0,0 +1,43 @@
/*
comedi_errno.h
header file for comedi's symbolic error names
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1997-2000 David A. Schleef <ds@stm.lbl.gov>
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.
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.
*/
#ifndef _COMEDI_ERRNO_H
#define _COMEDI_ERRNO_H
#ifdef __KERNEL__
#include <linux/errno.h>
#else
#include <errno.h>
#endif
// define symbolic error names, extensions peculiar to comedi
#define COMEDI_NOERROR 0X1000
#define EUNKNOWN (COMEDI_NOERROR + 1) // unknown error
#define EBAD_CT (COMEDI_NOERROR + 2) // bad comedi_t struct
#define EINVAL_SUBD (COMEDI_NOERROR + 3) // invalid subdevice
#define EINVAL_CHAN (COMEDI_NOERROR + 4) // invalid channel
#define EBUF_OVR (COMEDI_NOERROR + 5) // buffer overflow
#define EBUF_UNDR (COMEDI_NOERROR + 6) // buffer underflow
#endif // _COMEDI_ERRNO_H

10
lib/error.c
View file

@ -25,7 +25,7 @@
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <comedi_errno.h>
char *__comedilib_error_strings[]={
"No error",
@ -33,6 +33,8 @@ char *__comedilib_error_strings[]={
"Bad comedi_t structure",
"Invalid subdevice",
"Invalid channel",
"Buffer overflow",
"Buffer underflow",
};
int __comedi_loglevel=1;
@ -54,12 +56,12 @@ int comedi_errno(void)
char *comedi_strerror(int errnum)
{
if(errnum<COMEDILIB_NOERROR ||
errnum>=COMEDILIB_NOERROR+sizeof(__comedilib_error_strings)
if(errnum<COMEDI_NOERROR ||
errnum>=COMEDI_NOERROR+sizeof(__comedilib_error_strings)
/sizeof(__comedilib_error_strings[0]))
return strerror(errnum);
return __comedilib_error_strings[errnum-COMEDILIB_NOERROR];
return __comedilib_error_strings[errnum-COMEDI_NOERROR];
}
void comedi_perror(const char *s)