jri_md.h

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/*******************************************************************************
 * Java Runtime Interface - Machine Dependent Types
 ******************************************************************************/
 
#ifndef JRI_MD_H
#define JRI_MD_H

#include <assert.h>
#include "prtypes.h" /* Needed for HAS_LONG_LONG ifdefs */

#ifdef __cplusplus
extern "C" {
#endif

/*******************************************************************************
 * WHAT'S UP WITH THIS FILE?
 * 
 * This is where we define the mystical JRI_PUBLIC_API macro that works on all
 * platforms. If you're running with Visual C++, Symantec C, or Borland's 
 * development environment on the PC, you're all set. Or if you're on the Mac
 * with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
 * matter.
 *
 * On UNIX though you probably care about a couple of other symbols though:
 *	IS_LITTLE_ENDIAN must be defined for little-endian systems
 *	HAVE_LONG_LONG must be defined on systems that have 'long long' integers
 *	HAVE_ALIGNED_LONGLONGS must be defined if long-longs must be 8 byte aligned
 *	HAVE_ALIGNED_DOUBLES must be defined if doubles must be 8 byte aligned
 *	IS_64 must be defined on 64-bit machines (like Dec Alpha)
 ******************************************************************************/

/* DLL Entry modifiers... */

/* PC */
#if defined(XP_OS2)
#  ifdef XP_OS2_VACPP
#	  define JRI_PUBLIC_API(ResultType)	    ResultType _Optlink
#	  define JRI_PUBLIC_VAR(VarType)        VarType
#     define JRI_CALLBACK
#  else
#	  define JRI_PUBLIC_API(ResultType)	    ResultType
#	  define JRI_PUBLIC_VAR(VarType)        VarType
#     define JRI_CALLBACK
#  endif
#elif defined(XP_WIN) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
#	include <windows.h>
#	if defined(_MSC_VER) || defined(__GNUC__)
#		if defined(WIN32) || defined(_WIN32)
#			define JRI_PUBLIC_API(ResultType)  __declspec(dllexport) ResultType
#			define JRI_PUBLIC_VAR(VarType)	   VarType
#			define JRI_PUBLIC_VAR_EXP(VarType) __declspec(dllexport) VarType
#			define JRI_PUBLIC_VAR_IMP(VarType) __declspec(dllimport) VarType
#			define JRI_NATIVE_STUB(ResultType) __declspec(dllexport) ResultType
#			define JRI_CALLBACK
#		else /* !_WIN32 */
#		    if defined(_WINDLL)
#			define JRI_PUBLIC_API(ResultType)	ResultType __cdecl __export __loadds 
#			define JRI_PUBLIC_VAR(VarType)		VarType
#			define JRI_PUBLIC_VAR_EXP(VarType)	JRI_PUBLIC_VAR(VarType)
#			define JRI_PUBLIC_VAR_IMP(VarType)	JRI_PUBLIC_VAR(VarType)
#			define JRI_NATIVE_STUB(ResultType)	ResultType __cdecl __loadds
#			define JRI_CALLBACK			__loadds
#		else /* !WINDLL */
#			define JRI_PUBLIC_API(ResultType)	ResultType __cdecl __export
#			define JRI_PUBLIC_VAR(VarType)		VarType
#			define JRI_PUBLIC_VAR_EXP(VarType)	JRI_PUBLIC_VAR(VarType)
#			define JRI_PUBLIC_VAR_IMP(VarType)	JRI_PUBLIC_VAR(VarType)
#			define JRI_NATIVE_STUB(ResultType)	ResultType __cdecl __export
#			define JRI_CALLBACK			__export
#                   endif /* !WINDLL */
#		endif /* !_WIN32 */
#	elif defined(__BORLANDC__)
#		if defined(WIN32) || defined(_WIN32)
#			define JRI_PUBLIC_API(ResultType)	__export ResultType
#			define JRI_PUBLIC_VAR(VarType)		VarType
#			define JRI_PUBLIC_VAR_EXP(VarType)	__export VarType
#			define JRI_PUBLIC_VAR_IMP(VarType)	__import VarType
#			define JRI_NATIVE_STUB(ResultType)	 __export ResultType
#			define JRI_CALLBACK
#		else /* !_WIN32 */
#			define JRI_PUBLIC_API(ResultType)	ResultType _cdecl _export _loadds 
#			define JRI_PUBLIC_VAR(VarType)		VarType
#			define JRI_PUBLIC_VAR_EXP(VarType)	__cdecl __export VarType
#			define JRI_PUBLIC_VAR_IMP(VarType)	__cdecl __import VarType
#			define JRI_NATIVE_STUB(ResultType)	ResultType _cdecl _loadds
#			define JRI_CALLBACK			_loadds
#		endif
#	else
#		error Unsupported PC development environment.	
#	endif
#	ifndef IS_LITTLE_ENDIAN
#		define IS_LITTLE_ENDIAN
#	endif

/* Mac */
#elif defined (macintosh) || Macintosh || THINK_C
#	if defined(__MWERKS__)				/* Metrowerks */
#		if !__option(enumsalwaysint)
#			error You need to define 'Enums Always Int' for your project.
#		endif
#		if defined(TARGET_CPU_68K) && !TARGET_RT_MAC_CFM 
#			if !__option(fourbyteints) 
#				error You need to define 'Struct Alignment: 68k' for your project.
#			endif
#		endif /* !GENERATINGCFM */
#		define JRI_PUBLIC_API(ResultType)	__declspec(export) ResultType
#		define JRI_PUBLIC_VAR(VarType)		JRI_PUBLIC_API(VarType)
#		define JRI_PUBLIC_VAR_EXP(VarType)	JRI_PUBLIC_API(VarType)
#		define JRI_PUBLIC_VAR_IMP(VarType)	JRI_PUBLIC_API(VarType)
#		define JRI_NATIVE_STUB(ResultType)	JRI_PUBLIC_API(ResultType)
#	elif defined(__SC__)				/* Symantec */
#		error What are the Symantec defines? ([e-mail])
#	elif macintosh && applec			/* MPW */
#		error Please upgrade to the latest MPW compiler (SC).
#	else
#		error Unsupported Mac development environment.
#	endif
#	define JRI_CALLBACK

/* Unix or else */
#else
#	define JRI_PUBLIC_API(ResultType)		ResultType
#   define JRI_PUBLIC_VAR(VarType)          VarType
#   define JRI_PUBLIC_VAR_EXP(VarType)		JRI_PUBLIC_VAR(VarType)
#   define JRI_PUBLIC_VAR_IMP(VarType)		JRI_PUBLIC_VAR(VarType)
#   define JRI_NATIVE_STUB(ResultType)		ResultType
#	define JRI_CALLBACK
#endif

#ifndef FAR		/* for non-Win16 */
#define FAR
#endif

/******************************************************************************/

/* Java Scalar Types */

#if 0	/* now in jni.h */
typedef short			jchar;
typedef short			jshort;
typedef float			jfloat;
typedef double			jdouble;
typedef juint			jsize;
#endif

/* moved from jni.h -- Sun's new jni.h doesn't have this anymore */
#ifdef __cplusplus
typedef class _jobject *jref;
#else
typedef struct _jobject *jref;
#endif

typedef unsigned char	jbool;
typedef signed char	jbyte;
#ifdef IS_64 /* XXX ok for alpha, but not right on all 64-bit architectures */
typedef unsigned int	juint;
typedef int				jint;
#else
typedef unsigned long	juint;
typedef int			jint;
#endif

/*******************************************************************************
 * jlong : long long (64-bit signed integer type) support.
 ******************************************************************************/

/*
** Bit masking macros.  (n must be <= 31 to be portable)
*/
#define JRI_BIT(n)			((juint)1 << (n))
#define JRI_BITMASK(n)		(JRI_BIT(n) - 1)

#ifdef HAVE_LONG_LONG

#ifdef OSF1

/* long is default 64-bit on OSF1, -std1 does not allow long long */
typedef long                  jlong;
typedef unsigned long         julong;
#define jlong_MAXINT          0x7fffffffffffffffL
#define jlong_MININT          0x8000000000000000L
#define jlong_ZERO            0x0L

#elif (defined(WIN32) || defined(_WIN32))

typedef LONGLONG              jlong;
typedef DWORDLONG             julong;
#define jlong_MAXINT          0x7fffffffffffffffi64
#define jlong_MININT          0x8000000000000000i64
#define jlong_ZERO            0x0i64

#else

typedef long long             jlong;
typedef unsigned long long    julong;
#define jlong_MAXINT          0x7fffffffffffffffLL
#define jlong_MININT          0x8000000000000000LL
#define jlong_ZERO            0x0LL

#endif

#define jlong_IS_ZERO(a)	((a) == 0)
#define jlong_EQ(a, b)		((a) == (b))
#define jlong_NE(a, b)		((a) != (b))
#define jlong_GE_ZERO(a)	((a) >= 0)
#define jlong_CMP(a, op, b)	((a) op (b))

#define jlong_AND(r, a, b)	((r) = (a) & (b))
#define jlong_OR(r, a, b)	((r) = (a) | (b))
#define jlong_XOR(r, a, b)	((r) = (a) ^ (b))
#define jlong_OR2(r, a)		((r) = (r) | (a))
#define jlong_NOT(r, a)		((r) = ~(a))

#define jlong_NEG(r, a)		((r) = -(a))
#define jlong_ADD(r, a, b)	((r) = (a) + (b))
#define jlong_SUB(r, a, b)	((r) = (a) - (b))

#define jlong_MUL(r, a, b)	((r) = (a) * (b))
#define jlong_DIV(r, a, b)	((r) = (a) / (b))
#define jlong_MOD(r, a, b)	((r) = (a) % (b))

#define jlong_SHL(r, a, b)	((r) = (a) << (b))
#define jlong_SHR(r, a, b)	((r) = (a) >> (b))
#define jlong_USHR(r, a, b)	((r) = (julong)(a) >> (b))
#define jlong_ISHL(r, a, b)	((r) = ((jlong)(a)) << (b))

#define jlong_L2I(i, l)		((i) = (int)(l))
#define jlong_L2UI(ui, l)	((ui) =(unsigned int)(l))
#define jlong_L2F(f, l)		((f) = (l))
#define jlong_L2D(d, l)		((d) = (l))

#define jlong_I2L(l, i)		((l) = (i))
#define jlong_UI2L(l, ui)	((l) = (ui))
#define jlong_F2L(l, f)		((l) = (f))
#define jlong_D2L(l, d)		((l) = (d))

#define jlong_UDIVMOD(qp, rp, a, b)  \
    (*(qp) = ((julong)(a) / (b)), \
     *(rp) = ((julong)(a) % (b)))

#else  /* !HAVE_LONG_LONG */

typedef struct {
#ifdef IS_LITTLE_ENDIAN
    juint lo, hi;
#else