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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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mysys/my_malloc.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"
#include <m_string.h>
/* My memory allocator */
gptr my_malloc(unsigned int Size, myf MyFlags)
{
gptr point;
DBUG_ENTER("my_malloc");
DBUG_PRINT("my",("Size: %u MyFlags: %d",Size, MyFlags));
if (!Size)
Size=1; /* Safety */
if ((point = malloc(Size)) == NULL)
{
my_errno=errno;
if (MyFlags & MY_FAE)
error_handler_hook=fatal_error_handler_hook;
if (MyFlags & (MY_FAE+MY_WME))
my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size);
if (MyFlags & MY_FAE)
exit(1);
}
else if (MyFlags & MY_ZEROFILL)
bzero(point,Size);
DBUG_PRINT("exit",("ptr: %lx",point));
DBUG_RETURN(point);
} /* my_malloc */
/* Free memory allocated with my_malloc */
/*ARGSUSED*/
void my_no_flags_free(gptr ptr)
{
DBUG_ENTER("my_free");
DBUG_PRINT("my",("ptr: %lx",ptr));
if (ptr)
free(ptr);
DBUG_VOID_RETURN;
} /* my_free */
/* malloc and copy */
gptr my_memdup(const byte *from, uint length, myf MyFlags)
{
gptr ptr;
if ((ptr=my_malloc(length,MyFlags)) != 0)
memcpy((byte*) ptr, (byte*) from,(size_t) length);
return(ptr);
}
my_string my_strdup(const char *from, myf MyFlags)
{
gptr ptr;
uint length=(uint) strlen(from)+1;
if ((ptr=my_malloc(length,MyFlags)) != 0)
memcpy((byte*) ptr, (byte*) from,(size_t) length);
return((my_string) ptr);
}