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/gecko_api/include/jni_md.h

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  1/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  2 *
  3 * ***** BEGIN LICENSE BLOCK *****
  4 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  5 *
  6 * The contents of this file are subject to the Mozilla Public License Version
  7 * 1.1 (the "License"); you may not use this file except in compliance with
  8 * the License. You may obtain a copy of the License at
  9 * http://www.mozilla.org/MPL/
 10 *
 11 * Software distributed under the License is distributed on an "AS IS" basis,
 12 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 13 * for the specific language governing rights and limitations under the
 14 * License.
 15 *
 16 * The Original Code is mozilla.org code.
 17 *
 18 * The Initial Developer of the Original Code is
 19 * Netscape Communications Corporation.
 20 * Portions created by the Initial Developer are Copyright (C) 1998
 21 * the Initial Developer. All Rights Reserved.
 22 *
 23 * Contributor(s):
 24 *
 25 * Alternatively, the contents of this file may be used under the terms of
 26 * either the GNU General Public License Version 2 or later (the "GPL"), or
 27 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 28 * in which case the provisions of the GPL or the LGPL are applicable instead
 29 * of those above. If you wish to allow use of your version of this file only
 30 * under the terms of either the GPL or the LGPL, and not to allow others to
 31 * use your version of this file under the terms of the MPL, indicate your
 32 * decision by deleting the provisions above and replace them with the notice
 33 * and other provisions required by the GPL or the LGPL. If you do not delete
 34 * the provisions above, a recipient may use your version of this file under
 35 * the terms of any one of the MPL, the GPL or the LGPL.
 36 *
 37 * ***** END LICENSE BLOCK *****
 38 *
 39 *
 40 * This Original Code has been modified by IBM Corporation.
 41 * Modifications made by IBM described herein are
 42 * Copyright (c) International Business Machines
 43 * Corporation, 2000
 44 *
 45 * Modifications to Mozilla code or documentation
 46 * identified per MPL Section 3.3
 47 *
 48 * Date         Modified by     Description of modification
 49 * 03/27/2000   IBM Corp.       Set JNICALL to Optlink for
 50 *                               use in OS2
 51 */
 52
 53/*******************************************************************************
 54 * Netscape version of jni_md.h -- depends on jri_md.h
 55 ******************************************************************************/
 56
 57#ifndef JNI_MD_H
 58#define JNI_MD_H
 59
 60#include "prtypes.h" /* needed for _declspec */
 61
 62/*******************************************************************************
 63 * WHAT'S UP WITH THIS FILE?
 64 * 
 65 * This is where we define the mystical JNI_PUBLIC_API macro that works on all
 66 * platforms. If you're running with Visual C++, Symantec C, or Borland's 
 67 * development environment on the PC, you're all set. Or if you're on the Mac
 68 * with Metrowerks, Symantec or MPW with SC you're ok too. For UNIX it shouldn't
 69 * matter.
 70
 71 * Changes by sailesh on 9/26 
 72
 73 * There are two symbols used in the declaration of the JNI functions
 74 * and native code that uses the JNI:
 75 * JNICALL - specifies the calling convention 
 76 * JNIEXPORT - specifies export status of the function 
 77 * 
 78 * The syntax to specify calling conventions is different in Win16 and
 79 * Win32 - the brains at Micro$oft at work here. JavaSoft in their
 80 * infinite wisdom cares for no platform other than Win32, and so they
 81 * just define these two symbols as:
 82
 83 #define JNIEXPORT __declspec(dllexport)
 84 #define JNICALL __stdcall
 85
 86 * We deal with this, in the way JRI defines the JRI_PUBLIC_API, by
 87 * defining a macro called JNI_PUBLIC_API. Any of our developers who
 88 * wish to use code for Win16 and Win32, _must_ use JNI_PUBLIC_API to
 89 * be able to export functions properly.
 90
 91 * Since we must also maintain compatibility with JavaSoft, we
 92 * continue to define the symbol JNIEXPORT. However, use of this
 93 * internally is deprecated, since it will cause a mess on Win16.
 94
 95 * We _do not_ need a new symbol called JNICALL. Instead we
 96 * redefine JNICALL in the same way JRI_CALLBACK was defined.
 97
 98 ******************************************************************************/
 99
100/* DLL Entry modifiers... */
101/* Win32 */
102#if defined(XP_WIN) || defined(_WINDOWS) || defined(WIN32) || defined(_WIN32)
103#	include <windows.h>
104#	if defined(_MSC_VER) || defined(__GNUC__)
105#		if defined(WIN32) || defined(_WIN32)
106#			define JNI_PUBLIC_API(ResultType)	_declspec(dllexport) ResultType __stdcall
107#			define JNI_PUBLIC_VAR(VarType)		VarType
108#			define JNI_NATIVE_STUB(ResultType)	_declspec(dllexport) ResultType
109#			define JNICALL                          __stdcall
110#		else /* !_WIN32 */
111#		    if defined(_WINDLL)
112#			define JNI_PUBLIC_API(ResultType)	ResultType __cdecl __export __loadds 
113#			define JNI_PUBLIC_VAR(VarType)		VarType
114#			define JNI_NATIVE_STUB(ResultType)	ResultType __cdecl __loadds
115#			define JNICALL			        __loadds
116#		    else /* !WINDLL */
117#			define JNI_PUBLIC_API(ResultType)	ResultType __cdecl __export
118#			define JNI_PUBLIC_VAR(VarType)		VarType
119#			define JNI_NATIVE_STUB(ResultType)	ResultType __cdecl __export
120#			define JNICALL			        __export
121#                   endif /* !WINDLL */
122#		endif /* !_WIN32 */
123#	elif defined(__BORLANDC__)
124#		if defined(WIN32) || defined(_WIN32)
125#			define JNI_PUBLIC_API(ResultType)	__export ResultType
126#			define JNI_PUBLIC_VAR(VarType)		VarType
127#			define JNI_NATIVE_STUB(ResultType)	 __export ResultType
128#			define JNICALL
129#		else /* !_WIN32 */
130#			define JNI_PUBLIC_API(ResultType)	ResultType _cdecl _export _loadds 
131#			define JNI_PUBLIC_VAR(VarType)		VarType
132#			define JNI_NATIVE_STUB(ResultType)	ResultType _cdecl _loadds
133#			define JNICALL			_loadds
134#		endif
135#	else
136#		error Unsupported PC development environment.	
137#	endif
138#	ifndef IS_LITTLE_ENDIAN
139#		define IS_LITTLE_ENDIAN
140#	endif
141	/*  This is the stuff inherited from JavaSoft .. */
142#	define JNIEXPORT __declspec(dllexport)
143#	define JNIIMPORT __declspec(dllimport)
144
145/* OS/2 */
146#elif defined(XP_OS2)
147#	ifdef XP_OS2_VACPP
148#		define JNI_PUBLIC_API(ResultType)	ResultType _System
149#		define JNI_PUBLIC_VAR(VarType)		VarType
150#		define JNICALL				_Optlink
151#		define JNIEXPORT
152#		define JNIIMPORT
153#	elif defined(__declspec)
154#		define JNI_PUBLIC_API(ResultType)	__declspec(dllexport) ResultType
155#		define JNI_PUBLIC_VAR(VarType)		VarType
156#		define JNI_NATIVE_STUB(ResultType)	__declspec(dllexport) ResultType
157#		define JNICALL
158#		define JNIEXPORT
159#		define JNIIMPORT
160#	else
161#		define JNI_PUBLIC_API(ResultType)	ResultType
162#		define JNI_PUBLIC_VAR(VarType)		VarType
163#		define JNICALL
164#		define JNIEXPORT
165#		define JNIIMPORT
166#	endif
167#	ifndef IS_LITTLE_ENDIAN
168#		define IS_LITTLE_ENDIAN
169#	endif
170
171/* Mac */
172#elif macintosh || Macintosh || THINK_C
173#	if defined(__MWERKS__)				/* Metrowerks */
174#		if !__option(enumsalwaysint)
175#			error You need to define 'Enums Always Int' for your project.
176#		endif
177#		if defined(TARGET_CPU_68K) && !TARGET_RT_MAC_CFM 
178#			if !__option(fourbyteints) 
179#				error You need to define 'Struct Alignment: 68k' for your project.
180#			endif
181#		endif /* !GENERATINGCFM */
182#		define JNI_PUBLIC_API(ResultType)	__declspec(export) ResultType 
183#		define JNI_PUBLIC_VAR(VarType)		JNI_PUBLIC_API(VarType)
184#		define JNI_NATIVE_STUB(ResultType)	JNI_PUBLIC_API(ResultType)
185#	elif defined(__SC__)				/* Symantec */
186#		error What are the Symantec defines? (warren@netscape.com)
187#	elif macintosh && applec			/* MPW */
188#		error Please upgrade to the latest MPW compiler (SC).
189#	else
190#		error Unsupported Mac development environment.
191#	endif
192#	define JNICALL
193	/*  This is the stuff inherited from JavaSoft .. */
194#	define JNIEXPORT
195#	define JNIIMPORT
196
197/* Unix or else */
198#else
199#	define JNI_PUBLIC_API(ResultType)		ResultType
200#       define JNI_PUBLIC_VAR(VarType)                  VarType
201#       define JNI_NATIVE_STUB(ResultType)              ResultType
202#	define JNICALL
203	/*  This is the stuff inherited from JavaSoft .. */
204#	define JNIEXPORT
205#	define JNIIMPORT
206#endif
207
208#ifndef FAR		/* for non-Win16 */
209#define FAR
210#endif
211
212/* Get the rest of the stuff from jri_md.h */
213#include "jri_md.h"
214
215#endif /* JNI_MD_H */