mirror of
https://github.com/FirebirdSQL/firebird.git
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150 lines
3.5 KiB
C++
150 lines
3.5 KiB
C++
/*
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* PROGRAM: Firebird exceptions classes
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* MODULE: status.cpp
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* DESCRIPTION: Status vector filling and parsing.
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*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Mike Nordell
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2001 Mike Nordell <tamlin at algonet.se>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*
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* 2002.10.28 Sean Leyne - Code cleanup, removed obsolete "MPEXL" port
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*
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* 2002.10.29 Sean Leyne - Removed obsolete "Netware" port
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*
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*/
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#include "firebird.h"
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include "../jrd/status.h"
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#include "../jrd/gdsassert.h"
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#include "gen/iberror.h"
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#include "../jrd/gds_proto.h"
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/* The following function is used to stuff variable number of error message
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arguments from stack to the status_vector. This macro should be the
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first statement in a routine where it is invoked. */
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/* Get the addresses of the argument vector and the status vector, and do
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word-wise copy. */
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void STUFF_STATUS_function(ISC_STATUS* status_vector, ISC_STATUS status, va_list args)
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{
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int type, len;
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ISC_STATUS* p = status_vector;
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*p++ = isc_arg_gds;
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*p++ = status;
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while ((type = va_arg(args, int)) && ((p - status_vector) < 17))
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{
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switch (*p++ = type)
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{
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case isc_arg_gds:
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*p++ = va_arg(args, ISC_STATUS);
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break;
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case isc_arg_string:
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{
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ISC_STATUS* q = va_arg(args, ISC_STATUS*);
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if (strlen((TEXT *) q) >= (size_t) MAX_ERRSTR_LEN)
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{
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*(p - 1) = isc_arg_cstring;
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*p++ = (ISC_STATUS) MAX_ERRSTR_LEN;
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}
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*p++ = (ISC_STATUS) q;
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}
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break;
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case isc_arg_interpreted:
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*p++ = (ISC_STATUS) va_arg(args, TEXT *);
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break;
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case isc_arg_cstring:
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len = (int) va_arg(args, int);
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*p++ = (ISC_STATUS) (len >= MAX_ERRSTR_LEN) ? MAX_ERRSTR_LEN : len;
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*p++ = (ISC_STATUS) va_arg(args, TEXT *);
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break;
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case isc_arg_number:
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*p++ = (ISC_STATUS) va_arg(args, SLONG);
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break;
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case isc_arg_vms:
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case isc_arg_unix:
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case isc_arg_win32:
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default:
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*p++ = (ISC_STATUS) va_arg(args, int);
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break;
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}
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}
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*p = isc_arg_end;
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}
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/** Check that we never overrun the status vector. The status
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* vector is 20 elements. The maximum is 3 entries for a
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* type. So check for 17 or less
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*/
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void PARSE_STATUS(const ISC_STATUS* status_vector, int &length, int &warning)
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{
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warning = 0;
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length = 0;
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int i = 0;
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for (; status_vector[i] != isc_arg_end; i++, length++)
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{
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switch (status_vector[i])
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{
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case isc_arg_warning:
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if (!warning)
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warning = i; // find the very first
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// fallthrought intended
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case isc_arg_gds:
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case isc_arg_string:
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case isc_arg_number:
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case isc_arg_interpreted:
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case isc_arg_vms:
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case isc_arg_unix:
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case isc_arg_win32:
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i++;
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length++;
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break;
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case isc_arg_cstring:
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i += 2;
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length += 2;
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break;
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default:
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fb_assert(FALSE);
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break;
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}
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}
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if (i) {
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length++; // isc_arg_end is counted
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}
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}
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