/* $Id: strcache-stubs-generic.cpp $ */
/** @file
 * IPRT - String Cache, stub implementation.
 */

/*
 * Copyright (C) 2009-2022 Oracle and/or its affiliates.
 *
 * This file is part of VirtualBox base platform packages, as
 * available from https://www.virtualbox.org.
 *
 * 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, in version 3 of the
 * License.
 *
 * 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, see <https://www.gnu.org/licenses>.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
 * in the VirtualBox distribution, in which case the provisions of the
 * CDDL are applicable instead of those of the GPL.
 *
 * You may elect to license modified versions of this file under the
 * terms and conditions of either the GPL or the CDDL or both.
 *
 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
 */


/*********************************************************************************************************************************
*   Header Files                                                                                                                 *
*********************************************************************************************************************************/
#include <iprt/strcache.h>
#include "internal/iprt.h"

#include <iprt/asm.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/mempool.h>
#include <iprt/string.h>



RTDECL(int) RTStrCacheCreate(PRTSTRCACHE phStrCache, const char *pszName)
{
    AssertCompile(sizeof(RTSTRCACHE) == sizeof(RTMEMPOOL));
    AssertCompileNS(NIL_RTSTRCACHE     == (RTSTRCACHE)NIL_RTMEMPOOL);
    AssertCompileNS(RTSTRCACHE_DEFAULT == (RTSTRCACHE)RTMEMPOOL_DEFAULT);
    return RTMemPoolCreate((PRTMEMPOOL)phStrCache, pszName);
}
RT_EXPORT_SYMBOL(RTStrCacheCreate);


RTDECL(int) RTStrCacheDestroy(RTSTRCACHE hStrCache)
{
    if (    hStrCache == NIL_RTSTRCACHE
        ||  hStrCache == RTSTRCACHE_DEFAULT)
        return VINF_SUCCESS;
    return RTMemPoolDestroy((RTMEMPOOL)hStrCache);
}
RT_EXPORT_SYMBOL(RTStrCacheDestroy);


RTDECL(const char *) RTStrCacheEnterN(RTSTRCACHE hStrCache, const char *pchString, size_t cchString)
{
    AssertPtr(pchString);
    AssertReturn(cchString < _1G, NULL);
    Assert(!RTStrEnd(pchString, cchString));

    return (const char *)RTMemPoolDupEx((RTMEMPOOL)hStrCache, pchString, cchString, 1);
}
RT_EXPORT_SYMBOL(RTStrCacheEnterN);


RTDECL(const char *) RTStrCacheEnter(RTSTRCACHE hStrCache, const char *psz)
{
    return RTStrCacheEnterN(hStrCache, psz, strlen(psz));
}
RT_EXPORT_SYMBOL(RTStrCacheEnter);


RTDECL(const char *) RTStrCacheEnterLowerN(RTSTRCACHE hStrCache, const char *pchString, size_t cchString)
{
    AssertPtr(pchString);
    AssertReturn(cchString < _1G, NULL);
    Assert(!RTStrEnd(pchString, cchString));

    char *pszRet = (char *)RTMemPoolDupEx((RTMEMPOOL)hStrCache, pchString, cchString, 1);
    if (pszRet)
        RTStrToLower(pszRet);
    return pszRet;
}
RT_EXPORT_SYMBOL(RTStrCacheEnterLowerN);


RTDECL(const char *) RTStrCacheEnterLower(RTSTRCACHE hStrCache, const char *psz)
{
    return RTStrCacheEnterLowerN(hStrCache, psz, strlen(psz));
}
RT_EXPORT_SYMBOL(RTStrCacheEnterLower);


RTDECL(uint32_t) RTStrCacheRetain(const char *psz)
{
    AssertPtr(psz);
    return RTMemPoolRetain((void *)psz);
}
RT_EXPORT_SYMBOL(RTStrCacheRetain);


RTDECL(uint32_t) RTStrCacheRelease(RTSTRCACHE hStrCache, const char *psz)
{
    if (!psz)
        return 0;
    return RTMemPoolRelease((RTMEMPOOL)hStrCache, (void *)psz);
}
RT_EXPORT_SYMBOL(RTStrCacheRelease);


RTDECL(size_t) RTStrCacheLength(const char *psz)
{
    if (!psz)
        return 0;
    return strlen(psz);
}
RT_EXPORT_SYMBOL(RTStrCacheLength);


RTDECL(bool) RTStrCacheIsRealImpl(void)
{
    return false;
}
RT_EXPORT_SYMBOL(RTStrCacheIsRealImpl);


RTDECL(uint32_t) RTStrCacheGetStats(RTSTRCACHE hStrCache, size_t *pcbStrings, size_t *pcbChunks, size_t *pcbBigEntries,
                                    uint32_t *pcHashCollisions, uint32_t *pcHashCollisions2, uint32_t *pcHashInserts,
                                    uint32_t *pcRehashes)
{
    return UINT32_MAX;
}
RT_EXPORT_SYMBOL(RTStrCacheGetStats);