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0001 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 0002 /* ***** BEGIN LICENSE BLOCK ***** 0003 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 0004 * 0005 * The contents of this file are subject to the Mozilla Public License Version 0006 * 1.1 (the "License"); you may not use this file except in compliance with 0007 * the License. You may obtain a copy of the License at 0008 * http://www.mozilla.org/MPL/ 0009 * 0010 * Software distributed under the License is distributed on an "AS IS" basis, 0011 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 0012 * for the specific language governing rights and limitations under the 0013 * License. 0014 * 0015 * The Original Code is mozilla.org code. 0016 * 0017 * The Initial Developer of the Original Code is 0018 * Netscape Communications Corporation. 0019 * Portions created by the Initial Developer are Copyright (C) 1998 0020 * the Initial Developer. All Rights Reserved. 0021 * 0022 * Contributor(s): 0023 * 0024 * Alternatively, the contents of this file may be used under the terms of 0025 * either the GNU General Public License Version 2 or later (the "GPL"), or 0026 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), 0027 * in which case the provisions of the GPL or the LGPL are applicable instead 0028 * of those above. If you wish to allow use of your version of this file only 0029 * under the terms of either the GPL or the LGPL, and not to allow others to 0030 * use your version of this file under the terms of the MPL, indicate your 0031 * decision by deleting the provisions above and replace them with the notice 0032 * and other provisions required by the GPL or the LGPL. If you do not delete 0033 * the provisions above, a recipient may use your version of this file under 0034 * the terms of any one of the MPL, the GPL or the LGPL. 0035 * 0036 * ***** END LICENSE BLOCK ***** */ 0037 0038 /******************************************************************************* 0039 * Java Runtime Interface 0040 ******************************************************************************/ 0041 0042 #ifndef JRITYPES_H 0043 #define JRITYPES_H 0044 0045 #include "jri_md.h" 0046 #include "jni.h" 0047 #include <stddef.h> 0048 #include <stdlib.h> 0049 #include <stdarg.h> 0050 0051 #ifdef __cplusplus 0052 extern "C" { 0053 #endif 0054 0055 /******************************************************************************* 0056 * Types 0057 ******************************************************************************/ 0058 0059 struct JRIEnvInterface; 0060 0061 typedef void* JRIRef; 0062 typedef void* JRIGlobalRef; 0063 0064 typedef jint JRIFieldID; 0065 typedef jint JRIMethodID; 0066 0067 /* synonyms: */ 0068 typedef JRIGlobalRef jglobal; 0069 0070 typedef union JRIValue { 0071 jbool z; 0072 jbyte b; 0073 jchar c; 0074 jshort s; 0075 jint i; 0076 jlong l; 0077 jfloat f; 0078 jdouble d; 0079 jref r; 0080 } JRIValue; 0081 0082 typedef enum JRIBoolean { 0083 JRIFalse = 0, 0084 JRITrue = 1 0085 } JRIBoolean; 0086 0087 typedef enum JRIConstant { 0088 JRIUninitialized = -1 0089 } JRIConstant; 0090 0091 /* convenience types (these must be distinct struct types for c++ overloading): */ 0092 #if 0 /* now in jni.h */ 0093 typedef struct jbooleanArrayStruct* jbooleanArray; 0094 typedef struct jbyteArrayStruct* jbyteArray; 0095 typedef struct jcharArrayStruct* jcharArray; 0096 typedef struct jshortArrayStruct* jshortArray; 0097 typedef struct jintArrayStruct* jintArray; 0098 typedef struct jlongArrayStruct* jlongArray; 0099 typedef struct jfloatArrayStruct* jfloatArray; 0100 typedef struct jdoubleArrayStruct* jdoubleArray; 0101 typedef struct jobjectArrayStruct* jobjectArray; 0102 #endif 0103 typedef struct jstringArrayStruct* jstringArray; 0104 typedef struct jarrayArrayStruct* jarrayArray; 0105 0106 #define JRIConstructorMethodName "<init>" 0107 0108 /******************************************************************************* 0109 * Signature Construction Macros 0110 ******************************************************************************/ 0111 0112 /* 0113 ** These macros can be used to construct signature strings. Hopefully their names 0114 ** are a little easier to remember than the single character they correspond to. 0115 ** For example, to specify the signature of the method: 0116 ** 0117 ** public int read(byte b[], int off, int len); 0118 ** 0119 ** you could write something like this in C: 0120 ** 0121 ** char* readSig = JRISigMethod(JRISigArray(JRISigByte) 0122 ** JRISigInt 0123 ** JRISigInt) JRISigInt; 0124 ** 0125 ** Of course, don't put commas between the types. 0126 */ 0127 #define JRISigArray(T) "[" T 0128 #define JRISigByte "B" 0129 #define JRISigChar "C" 0130 #define JRISigClass(name) "L" name ";" 0131 #define JRISigFloat "F" 0132 #define JRISigDouble "D" 0133 #define JRISigMethod(args) "(" args ")" 0134 #define JRISigNoArgs "" 0135 #define JRISigInt "I" 0136 #define JRISigLong "J" 0137 #define JRISigShort "S" 0138 #define JRISigVoid "V" 0139 #define JRISigBoolean "Z" 0140 0141 /******************************************************************************* 0142 * Environments 0143 ******************************************************************************/ 0144 0145 extern JRI_PUBLIC_API(const struct JRIEnvInterface**) 0146 JRI_GetCurrentEnv(void); 0147 0148 /******************************************************************************* 0149 * Specific Scalar Array Types 0150 ******************************************************************************/ 0151 0152 /* 0153 ** The JRI Native Method Interface does not support boolean arrays. This 0154 ** is to allow Java runtime implementations to optimize boolean array 0155 ** storage. Using the ScalarArray operations on boolean arrays is bound 0156 ** to fail, so convert any boolean arrays to byte arrays in Java before 0157 ** passing them to a native method. 0158 */ 0159 0160 #define JRI_NewByteArray(env, length, initialValues) \ 0161 JRI_NewScalarArray(env, length, JRISigByte, (jbyte*)(initialValues)) 0162 #define JRI_GetByteArrayLength(env, array) \ 0163 JRI_GetScalarArrayLength(env, array) 0164 #define JRI_GetByteArrayElements(env, array) \ 0165 JRI_GetScalarArrayElements(env, array) 0166 0167 #define JRI_NewCharArray(env, length, initialValues) \ 0168 JRI_NewScalarArray(env, ((length) * sizeof(jchar)), JRISigChar, (jbyte*)(initialValues)) 0169 #define JRI_GetCharArrayLength(env, array) \ 0170 JRI_GetScalarArrayLength(env, array) 0171 #define JRI_GetCharArrayElements(env, array) \ 0172 ((jchar*)JRI_GetScalarArrayElements(env, array)) 0173 0174 #define JRI_NewShortArray(env, length, initialValues) \ 0175 JRI_NewScalarArray(env, ((length) * sizeof(jshort)), JRISigShort, (jbyte*)(initialValues)) 0176 #define JRI_GetShortArrayLength(env, array) \ 0177 JRI_GetScalarArrayLength(env, array) 0178 #define JRI_GetShortArrayElements(env, array) \ 0179 ((jshort*)JRI_GetScalarArrayElements(env, array)) 0180 0181 #define JRI_NewIntArray(env, length, initialValues) \ 0182 JRI_NewScalarArray(env, ((length) * sizeof(jint)), JRISigInt, (jbyte*)(initialValues)) 0183 #define JRI_GetIntArrayLength(env, array) \ 0184 JRI_GetScalarArrayLength(env, array) 0185 #define JRI_GetIntArrayElements(env, array) \ 0186 ((jint*)JRI_GetScalarArrayElements(env, array)) 0187 0188 #define JRI_NewLongArray(env, length, initialValues) \ 0189 JRI_NewScalarArray(env, ((length) * sizeof(jlong)), JRISigLong, (jbyte*)(initialValues)) 0190 #define JRI_GetLongArrayLength(env, array) \ 0191 JRI_GetScalarArrayLength(env, array) 0192 #define JRI_GetLongArrayElements(env, array) \ 0193 ((jlong*)JRI_GetScalarArrayElements(env, array)) 0194 0195 #define JRI_NewFloatArray(env, length, initialValues) \ 0196 JRI_NewScalarArray(env, ((length) * sizeof(jfloat)), JRISigFloat, (jbyte*)(initialValues)) 0197 #define JRI_GetFloatArrayLength(env, array) \ 0198 JRI_GetScalarArrayLength(env, array) 0199 #define JRI_GetFloatArrayElements(env, array) \ 0200 ((jfloat*)JRI_GetScalarArrayElements(env, array)) 0201 0202 #define JRI_NewDoubleArray(env, length, initialValues) \ 0203 JRI_NewScalarArray(env, ((length) * sizeof(jdouble)), JRISigDouble, (jbyte*)(initialValues)) 0204 #define JRI_GetDoubleArrayLength(env, array) \ 0205 JRI_GetScalarArrayLength(env, array) 0206 #define JRI_GetDoubleArrayElements(env, array) \ 0207 ((jdouble*)JRI_GetScalarArrayElements(env, array)) 0208 0209 /******************************************************************************/ 0210 /* 0211 ** JDK Stuff -- This stuff is still needed while we're using the JDK 0212 ** dynamic linking strategy to call native methods. 0213 */ 0214 0215 typedef union JRI_JDK_stack_item { 0216 /* Non pointer items */ 0217 jint i; 0218 jfloat f; 0219 jint o; 0220 /* Pointer items */ 0221 void *h; 0222 void *p; 0223 unsigned char *addr; 0224 #ifdef IS_64 0225 double d; 0226 long l; /* == 64bits! */ 0227 #endif 0228 } JRI_JDK_stack_item; 0229 0230 typedef union JRI_JDK_Java8Str { 0231 jint x[2]; 0232 jdouble d; 0233 jlong l; 0234 void *p; 0235 float f; 0236 } JRI_JDK_Java8; 0237 0238 /******************************************************************************/ 0239 #ifdef __cplusplus 0240 } 0241 #endif 0242 #endif /* JRITYPES_H */ 0243 /******************************************************************************/