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/*
* XMail by Davide Libenzi ( Intranet and Internet mail server )
* Copyright (C) 1999,..,2004 Davide Libenzi
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Davide Libenzi <davidel@xmailserver.org>
*
*/
#include "SysInclude.h"
#include "SysDep.h"
#include "SvrDefines.h"
#include "ShBlocks.h"
#include "StrUtils.h"
#include "BuffSock.h"
#include "MiscUtils.h"
#include "Array.h"
#define ARRAY_EXTRA_SPACE 16
struct Array {
long lAlloc;
long lCount;
void **ppData;
};
ARRAY_HANDLE ArrayCreate(long lSize)
{
Array *pAr;
if ((pAr = (Array *) SysAlloc(sizeof(Array))) == NULL)
return INVALID_ARRAY_HANDLE;
pAr->lAlloc = lSize + 1;
if ((pAr->ppData = (void **) SysAlloc(pAr->lAlloc * sizeof(void *))) == NULL) {
SysFree(pAr);
return INVALID_ARRAY_HANDLE;
}
return (ARRAY_HANDLE) pAr;
}
void ArrayFree(ARRAY_HANDLE hArray, void (*pfFree)(void *, void *),
void *pPrivate)
{
Array *pAr;
/*
* Having *Free() functions to accept NULL handles is useful in
* order to streamline the cleanup path of functions using them.
*/
if (hArray == INVALID_ARRAY_HANDLE)
return;
pAr = (Array *) hArray;
if (pfFree != NULL)
for (long i = pAr->lCount - 1; i >= 0; i--)
if (pAr->ppData[i] != NULL)
(*pfFree)(pPrivate, pAr->ppData[i]);
SysFree(pAr->ppData);
SysFree(pAr);
}
int ArraySet(ARRAY_HANDLE hArray, long lIdx, void *pData)
{
Array *pAr = (Array *) hArray;
if (lIdx < 0) {
ErrSetErrorCode(ERR_INVALID_PARAMETER);
return ERR_INVALID_PARAMETER;
}
if (lIdx >= pAr->lAlloc) {
long i, lAlloc = 2 * pAr->lAlloc + ARRAY_EXTRA_SPACE;
void **ppData = (void **) SysRealloc(pAr->ppData, lAlloc * sizeof(void *));
if (ppData == NULL)
return ErrGetErrorCode();
for (i = lAlloc - 1; i >= pAr->lAlloc; i--)
ppData[i] = NULL;
pAr->lAlloc = lAlloc;
pAr->ppData = ppData;
}
pAr->ppData[lIdx] = pData;
if (lIdx >= pAr->lCount)
pAr->lCount = lIdx + 1;
return 0;
}
long ArrayLength(ARRAY_HANDLE hArray)
{
Array *pAr = (Array *) hArray;
return pAr->lCount;
}
void *ArrayGet(ARRAY_HANDLE hArray, long lIdx)
{
Array *pAr = (Array *) hArray;
if (lIdx < 0 || lIdx >= pAr->lCount) {
ErrSetErrorCode(ERR_NOT_FOUND);
return NULL;
}
return pAr->ppData[lIdx];
}
int ArrayAppend(ARRAY_HANDLE hArray, void *pData)
{
return ArraySet(hArray, ArrayLength(hArray), pData);
}
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