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/* $XConsortium: jritypes.h /main/2 1996/11/13 09:27:14 kaleb $ */
/* -*- Mode: C; tab-width: 4; -*- */
/*******************************************************************************
* Java Runtime Interface
* Copyright (c) 1996 Netscape Communications Corporation. All rights reserved.
******************************************************************************/
#ifndef JRITYPES_H
#define JRITYPES_H
#include "jri_md.h"
#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#ifdef __cplusplus
extern "C" {
#endif
/*******************************************************************************
* Types
******************************************************************************/
struct JRIEnvInterface;
typedef void* JRIRef;
typedef void* JRIGlobalRef;
typedef jint JRIInterfaceID[4];
typedef jint JRIFieldID;
typedef jint JRIMethodID;
/* synonyms: */
typedef JRIGlobalRef jglobal;
typedef JRIRef jref;
typedef union JRIValue {
jbool z;
jbyte b;
jchar c;
jshort s;
jint i;
jlong l;
jfloat f;
jdouble d;
jref r;
} JRIValue;
typedef JRIValue jvalue;
typedef enum JRIBoolean {
JRIFalse = 0,
JRITrue = 1
} JRIBoolean;
typedef enum JRIConstant {
JRIUninitialized = -1
} JRIConstant;
/* convenience types: */
typedef JRIRef jbooleanArray;
typedef JRIRef jbyteArray;
typedef JRIRef jcharArray;
typedef JRIRef jshortArray;
typedef JRIRef jintArray;
typedef JRIRef jlongArray;
typedef JRIRef jfloatArray;
typedef JRIRef jdoubleArray;
typedef JRIRef jobjectArray;
typedef JRIRef jstringArray;
typedef JRIRef jarrayArray;
#define JRIConstructorMethodName "<init>"
/*******************************************************************************
* Signature Construction Macros
******************************************************************************/
/*
** These macros can be used to construct signature strings. Hopefully their names
** are a little easier to remember than the single character they correspond to.
** For example, to specify the signature of the method:
**
** public int read(byte b[], int off, int len);
**
** you could write something like this in C:
**
** char* readSig = JRISigMethod(JRISigArray(JRISigByte)
** JRISigInt
** JRISigInt) JRISigInt;
**
** Of course, don't put commas between the types.
*/
#define JRISigArray(T) "[" T
#define JRISigByte "B"
#define JRISigChar "C"
#define JRISigClass(name) "L" name ";"
#define JRISigFloat "F"
#define JRISigDouble "D"
#define JRISigMethod(args) "(" args ")"
#define JRISigNoArgs ""
#define JRISigInt "I"
#define JRISigLong "J"
#define JRISigShort "S"
#define JRISigVoid "V"
#define JRISigBoolean "Z"
/*******************************************************************************
* Environments
******************************************************************************/
extern JRI_PUBLIC_API(const struct JRIEnvInterface**)
JRI_GetCurrentEnv(void);
/*******************************************************************************
* Specific Scalar Array Types
******************************************************************************/
/*
** The JRI Native Method Interface does not support boolean arrays. This
** is to allow Java runtime implementations to optimize boolean array
** storage. Using the ScalarArray operations on boolean arrays is bound
** to fail, so convert any boolean arrays to byte arrays in Java before
** passing them to a native method.
*/
#define JRI_NewByteArray(env, length, initialValues) \
JRI_NewScalarArray(env, length, JRISigByte, (jbyte*)(initialValues))
#define JRI_GetByteArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetByteArrayElements(env, array) \
JRI_GetScalarArrayElements(env, array)
#define JRI_NewCharArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jchar)), JRISigChar, (jbyte*)(initialValues))
#define JRI_GetCharArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetCharArrayElements(env, array) \
((jchar*)JRI_GetScalarArrayElements(env, array))
#define JRI_NewShortArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jshort)), JRISigShort, (jbyte*)(initialValues))
#define JRI_GetShortArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetShortArrayElements(env, array) \
((jshort*)JRI_GetScalarArrayElements(env, array))
#define JRI_NewIntArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jint)), JRISigInt, (jbyte*)(initialValues))
#define JRI_GetIntArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetIntArrayElements(env, array) \
((jint*)JRI_GetScalarArrayElements(env, array))
#define JRI_NewLongArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jlong)), JRISigLong, (jbyte*)(initialValues))
#define JRI_GetLongArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetLongArrayElements(env, array) \
((jlong*)JRI_GetScalarArrayElements(env, array))
#define JRI_NewFloatArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jfloat)), JRISigFloat, (jbyte*)(initialValues))
#define JRI_GetFloatArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetFloatArrayElements(env, array) \
((jfloat*)JRI_GetScalarArrayElements(env, array))
#define JRI_NewDoubleArray(env, length, initialValues) \
JRI_NewScalarArray(env, ((length) * sizeof(jdouble)), JRISigDouble, (jbyte*)(initialValues))
#define JRI_GetDoubleArrayLength(env, array) \
JRI_GetScalarArrayLength(env, array)
#define JRI_GetDoubleArrayElements(env, array) \
((jdouble*)JRI_GetScalarArrayElements(env, array))
/******************************************************************************/
#ifdef __cplusplus
}
#endif
#endif /* JRITYPES_H */
/******************************************************************************/
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