portdefs.h

mysql-5.0.22.tar.gz源码包

/* Copyright (C) 2003 MySQL AB

   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 */

#ifndef PORT_DEFS_H
#define PORT_DEFS_H
/*
   This file contains varoius declarations/definitions needed in the port of AXEVM to NT, as well as backporting
   to Solaris...

  $Id: PortDefs.h,v 1.5 2003/10/07 07:59:59 mikael Exp $
*/

#ifdef NDB_ALPHA
#ifdef NDB_GCC /* only for NDB_ALPHA */
extern int gnuShouldNotUseRPCC();
#define RPCC() gnuShouldNotUseRPCC();
#else 
#define RPCC() ((int)__asm(" rpcc v0;"))
#define MB() __asm(" mb;");
#define WMB() __asm(" wmb;");
#ifdef USE_INITIALSP
#define IS_IP() (__asm(" mov sp,v0;") < IPinitialSP)
#else /* USE_INITIALSP */
#define IS_IP() (((__asm(" rpcc v0;") >> 32) & 0x7) == IP_CPU)
#endif
#endif /* NDB_GCC */
#else /* NDB_ALPHA */
#if defined NDB_SPARC
#define MB() asm ("membar 0x0;");  /* LoadLoad */
#define WMB() asm ("membar 0x3;"); /* StoreStore */
#else /* NDB_SPARC */
#define MB()
#define WMB()
#endif /* NDB_SPARC */
#define IS_IP() (1==1)
extern int shouldNotUseRPCC();
#define RPCC() shouldNotUseRPCC();
#endif /* NDB_ALPHA */

#endif