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- /*
- * @(#)typedefs.h 1.10 95/11/29
- *
- * Copyright (c) 1994 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
-
- #ifndef _TYPEDEFS_H_
- #define _TYPEDEFS_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 alingnment 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;
-
-
- #ifdef HAVE_ALIGNED_LONGLONGS
- #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 */
- #ifdef HAVE_ALIGNED_DOUBLES
- #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 */
- #ifdef HAVE_64BIT_POINTERS
- #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_ */
-