php-src/ext/mysql/libmysql/my_malloc.c
MySQL Team a2dbb10eb1 Update libmysql to 3.23 version. No major changes visible to the user - mostly
bug fixes and other maintenance-oriented changes.
2000-10-20 22:26:48 +00:00

71 lines
1.6 KiB
C

/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
This file is public domain and comes with NO WARRANTY of any kind */
#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);
}