errmsg.cpp revision 5ba5784accbbd9d089aec12e8bd5c0b9740eee20
/* $Id$ */
/** @file
* innotek Portable Runtime - Status code messages.
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <iprt/err.h>
#include <iprt/asm.h>
#include <iprt/string.h>
#include <iprt/err.h>
#include <VBox/err.h>
/*******************************************************************************
* Global Variables *
*******************************************************************************/
/** Array of messages.
* The data is generated by a sed script.
*/
static const RTSTATUSMSG g_aStatusMsgs[] =
{
#include "errmsgdata.h"
{ NULL, NULL, NULL, 0 }
};
/** Temporary buffers to format unknown messages in.
* @{
*/
static char g_aszUnknownStr[4][64];
static RTSTATUSMSG g_aUnknownMsgs[4] =
{
{ &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], &g_aszUnknownStr[0][0], 0 },
{ &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], &g_aszUnknownStr[1][0], 0 },
{ &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], &g_aszUnknownStr[2][0], 0 },
{ &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], &g_aszUnknownStr[3][0], 0 }
};
/** Last used index in g_aUnknownMsgs. */
static volatile uint32_t g_iUnknownMsgs;
/** @} */
/**
* Get the message corresponding to a given status code.
*
* @returns Pointer to read-only message description.
* @param rc The status code.
*/
RTDECL(PCRTSTATUSMSG) RTErrGet(int rc)
{
unsigned iFound = ~0;
unsigned i;
for (i = 0; i < ELEMENTS(g_aStatusMsgs); i++)
{
if (g_aStatusMsgs[i].iCode == rc)
{
/*
* Found a match.
* Since this isn't a unique key, we must check that it's not
* one of those start/end #defines before we return.
*/
if ( !strstr(g_aStatusMsgs[i].pszDefine, "FIRST")
&& !strstr(g_aStatusMsgs[i].pszDefine, "LAST"))
return &g_aStatusMsgs[i];
iFound = i;
}
}
if (iFound != ~0U)
return &g_aStatusMsgs[iFound];
/*
* Need to use the temporary stuff.
*/
int iMsg = ASMAtomicXchgU32(&g_iUnknownMsgs, (g_iUnknownMsgs + 1) % ELEMENTS(g_aUnknownMsgs));
RTStrPrintf(&g_aszUnknownStr[iMsg][0], sizeof(g_aszUnknownStr[iMsg]), "Unknown Status 0x%X\n", rc);
return &g_aUnknownMsgs[iMsg];
}