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bk@work.mysql.com
2000-07-31 21:29:14 +02:00
parent 7eec25e393
commit f4c589ff6c
2375 changed files with 454571 additions and 0 deletions
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65
mysys/my_realloc.c Normal file
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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
#ifdef SAFEMALLOC /* We don't need SAFEMALLOC here */
#undef SAFEMALLOC
#endif
#include "mysys_priv.h"
#include "mysys_err.h"
/* My memory re allocator */
gptr my_realloc(gptr oldpoint, uint Size, myf MyFlags)
{
gptr point;
DBUG_ENTER("my_realloc");
DBUG_PRINT("my",("ptr: %lx Size: %u MyFlags: %d",oldpoint, Size, MyFlags));
if (!oldpoint && (MyFlags & MY_ALLOW_ZERO_PTR))
DBUG_RETURN(my_malloc(Size,MyFlags));
#ifdef USE_HALLOC
if (!(point = malloc(Size)))
{
if (MyFlags & MY_FREE_ON_ERROR)
my_free(oldpoint,MyFlags);
if (MyFlags & MY_HOLD_ON_ERROR)
DBUG_RETURN(oldpoint);
my_errno=errno;
if (MyFlags & MY_FAE+MY_WME)
my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size);
}
else
{
memcpy(point,oldpoint,Size);
free(oldpoint);
}
#else
if ((point = realloc(oldpoint,Size)) == NULL)
{
if (MyFlags & MY_FREE_ON_ERROR)
my_free(oldpoint,MyFLAGS);
if (MyFlags & MY_HOLD_ON_ERROR)
DBUG_RETURN(oldpoint);
my_errno=errno;
if (MyFlags & (MY_FAE+MY_WME))
my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG), Size);
}
#endif
DBUG_PRINT("exit",("ptr: %lx",point));
DBUG_RETURN(point);
} /* my_realloc */