/*
 *
 * Copyright  1990-2006 Sun Microsystems, Inc. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 only, as published by the Free Software Foundation.
 *
 * 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 version 2 for more details (a copy is
 * included at /legal/license.txt).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this work; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
 * Clara, CA 95054 or visit www.sun.com if you need additional
 * information or have any questions.
 */

#ifndef    _TYPEDEFS_H_
#define    _TYPEDEFS_H_

#include "wrappers.h"

#include "typedefs_md.h"    /* for int64_t */

/*
 * Macros to deal with the JavaVM's stack alignment. Many machines
 * require doublewords to be double aligned.  This union is used by
 * code in math.h as a more portable way do alignment on machines
 * that require it.  This union and the macros that use it came from
 * Netscape.
 */

typedef union Java8Str {
    int32_t x[2];
    double d;
    int64_t l;
    void *p;
} Java8;

#if INT64_T_REQUIRES_ALIGNED_ACCESS
#define GET_INT64(_t,_addr) ( ((_t).x[0] = ((int32_t*)(_addr))[0]), \
                              ((_t).x[1] = ((int32_t*)(_addr))[1]), \
                              (_t).l )
#define SET_INT64(_t, _addr, _v) ( (_t).l = (_v),                    \
                                   ((int32_t*)(_addr))[0] = (_t).x[0], \
                                   ((int32_t*)(_addr))[1] = (_t).x[1] )
#else
#define GET_INT64(_t,_addr) (*(int64_t*)(_addr))
#define SET_INT64(_t, _addr, _v) (*(int64_t*)(_addr) = (_v))
#endif

/* If double's must be aligned on doubleword boundaries then define this */
#if DOUBLE_REQUIRES_ALIGNED_ACCESS
#define GET_DOUBLE(_t,_addr) ( ((_t).x[0] = ((int32_t*)(_addr))[0]), \
                               ((_t).x[1] = ((int32_t*)(_addr))[1]), \
                               (_t).d )
#define SET_DOUBLE(_t, _addr, _v) ( (_t).d = (_v),                    \
                                    ((int32_t*)(_addr))[0] = (_t).x[0], \
                                    ((int32_t*)(_addr))[1] = (_t).x[1] )
#else
#define GET_DOUBLE(_t,_addr) (*(double*)(_addr))
#define SET_DOUBLE(_t, _addr, _v) (*(double*)(_addr) = (_v))
#endif

/* If pointers are 64bits then define this */
#if SIZEOF_VOIDP
#define GET_HANDLE(_t,_addr) ( ((_t).x[0] = ((int32_t*)(_addr))[0]), \
                               ((_t).x[1] = ((int32_t*)(_addr))[1]), \
                               (_t).p )
#define SET_HANDLE(_t, _addr, _v) ( (_t).p = (_v),                    \
                                    ((int32_t*)(_addr))[0] = (_t).x[0], \
                                    ((int32_t*)(_addr))[1] = (_t).x[1] )
#else
#define GET_HANDLE(_t,_addr) (*(JHandle*)(_addr))
#define SET_HANDLE(_t, _addr, _v) (*(JHandle*)(_addr) = (_v))
#endif

#endif    /* !_TYPEDEFS_H_ */