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/*
* SCCS: @(#)errno.c 1.7 (98/08/28)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1996 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
* A copy of the end-user licence agreement is contained in the file
* Licence which accompanies this distribution.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)errno.c 1.7 98/08/28 TETware release 3.3
NAME: 'C' API error reporting mechanism
PRODUCT: TETware
AUTHOR: Geoff Clare, UniSoft Ltd.
DATE CREATED: July 1996
SYNOPSIS:
int tet_errno;
char * tet_errlist[];
int tet_nerr;
int * tet_thr_errno(void);
DESCRIPTION:
Tet_errno is set to a non-zero value by API functions when
an error is indicated by the function's return value.
In the threads version of the API, tet_errno is really
a #define, enabling each thread to have a separate tet_errno.
Tet_errlist contains a short string describing each tet_errno
value, and can be indexed by tet_errno after checking the
condition: (tet_errno >= 0 && tet_errno < tet_nerr).
Tet_thr_errno() is not part of the API: it is used (in the
threads version) in the #define of tet_errno.
Where API functions call others, and wish to use tet_errno in
reporting errors, tet_errno must be passed NEGATED to the
internal error reporting functions such as tet_error(), error()
and fatal().
MODIFICATIONS:
Andrew Dingwall, UniSoft Ltd., February 1998
Use TETware-specific macros to access threads functions and
data items.
Andrew Dingwall, UniSoft Ltd., July 1998
Added support for shared API libraries.
Aaron Plattner, April 2010
Fixed warnings when compiled with GCC's -Wall option.
************************************************************************/
#include <stdlib.h>
#include "dtmac.h"
#include "tet_api.h"
#include "error.h"
#include "dtthr.h"
#ifndef TET_THREADS
TET_IMPORT int tet_errno;
#else /* !TET_THREADS */
TET_IMPORT tet_thread_key_t tet_errno_key;
TET_IMPORT int *tet_thr_errno()
{
/* find tet_errno address for this thread */
void *rtval;
rtval = 0;
TET_THR_GETSPECIFIC(tet_errno_key, &rtval);
if (rtval == 0)
{
/* No tet_errno has been set up for this thread - probably
because it was not created with tet_thr_create().
Try and allocate a new tet_errno. */
rtval = malloc(sizeof(int));
TET_THR_SETSPECIFIC(tet_errno_key, rtval);
rtval = 0;
TET_THR_GETSPECIFIC(tet_errno_key, &rtval);
if (rtval == 0)
fatal(0, "could not set up tet_errno for new thread in tet_thr_errno", (char *)0);
*((int *)rtval) = 0;
}
return (int *)rtval;
}
#endif /* !TET_THREADS */
/* This list must be kept in sync with tet_api.h and dtmsg.h */
TET_IMPORT char *tet_errlist[] = {
/* TET_ER_OK 0 */ "no error",
/* TET_ER_ERR 1 */ "general error",
/* TET_ER_MAGIC 2 */ "bad magic number",
/* TET_ER_LOGON 3 */ "not logged on",
/* TET_ER_RCVERR 4 */ "receive message error",
/* TET_ER_REQ 5 */ "unknown request code",
/* TET_ER_TIMEDOUT 6 */ "request/call timed out",
/* TET_ER_DUPS 7 */ "request contained duplicate IDs",
/* TET_ER_SYNCERR 8 */ "sync completed unsuccessfully",
/* TET_ER_INVAL 9 */ "invalid parameter",
/* TET_ER_TRACE 10 */ "tracing not configured",
/* TET_ER_WAIT 11 */ "process not terminated",
/* TET_ER_XRID 12 */ "bad xrid in xresd request",
/* TET_ER_SNID 13 */ "bad snid in syncd request",
/* TET_ER_SYSID 14 */ "bad sysid or sysid not in system name list",
/* TET_ER_INPROGRESS 15 */ "event in progress",
/* TET_ER_DONE 16 */ "event finished or already happened",
/* TET_ER_CONTEXT 17 */ "request out of context",
/* TET_ER_PERM 18 */ "privilege request/kill error",
/* TET_ER_FORK 19 */ "can't fork",
/* TET_ER_NOENT 20 */ "no such file or directory",
/* TET_ER_PID 21 */ "no such process",
/* TET_ER_SIGNUM 22 */ "bad signal number",
/* TET_ER_FID 23 */ "bad file id",
/* TET_ER_INTERN 24 */ "server internal error",
/* TET_ER_ABORT 25 */ "abort TCM on TP end",
/* TET_ER_2BIG 26 */ "argument list too long",
};
TET_IMPORT int tet_nerr = sizeof(tet_errlist)/sizeof(*tet_errlist);
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