kni.h

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KNIEXPORT void     KNI_SetIntField(jobject objectHandle, jfieldID fieldID,
                       jint value);
KNIEXPORT void     KNI_SetLongField(jobject objectHandle, jfieldID fieldID,
                       jlong value);
KNIEXPORT void     KNI_SetFloatField(jobject objectHandle, jfieldID fieldID,
                       jfloat value);
KNIEXPORT void     KNI_SetDoubleField(jobject objectHandle, jfieldID fieldID,
                       jdouble value);
KNIEXPORT void     KNI_SetObjectField(jobject objectHandle, jfieldID fieldID,
                       jobject fromHandle);

/**
 * Static field access
 */
KNIEXPORT jboolean KNI_GetStaticBooleanField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jbyte    KNI_GetStaticByteField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jchar    KNI_GetStaticCharField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jshort   KNI_GetStaticShortField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jint     KNI_GetStaticIntField(jclass classHandle, jfieldID fieldID);
KNIEXPORT jlong    KNI_GetStaticLongField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jfloat   KNI_GetStaticFloatField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT jdouble  KNI_GetStaticDoubleField(jclass classHandle,
                       jfieldID fieldID);
KNIEXPORT void     KNI_GetStaticObjectField(jclass classHandle,
                       jfieldID fieldID, jobject toHandle);

KNIEXPORT void     KNI_SetStaticBooleanField(jclass classHandle,
                       jfieldID fieldID, jboolean value);
KNIEXPORT void     KNI_SetStaticByteField(jclass classHandle,
                       jfieldID fieldID, jbyte value);
KNIEXPORT void     KNI_SetStaticCharField(jclass classHandle,
                       jfieldID fieldID, jchar value);
KNIEXPORT void     KNI_SetStaticShortField(jclass classHandle,
                       jfieldID fieldID, jshort value);
KNIEXPORT void     KNI_SetStaticIntField(jclass classHandle,
                       jfieldID fieldID, jint value);
KNIEXPORT void     KNI_SetStaticLongField(jclass classHandle,
                       jfieldID fieldID, jlong value);
KNIEXPORT void     KNI_SetStaticFloatField(jclass classHandle,
                       jfieldID fieldID, jfloat value);
KNIEXPORT void     KNI_SetStaticDoubleField(jclass classHandle,
                       jfieldID fieldID, jdouble value);
KNIEXPORT void     KNI_SetStaticObjectField(jclass classHandle,
                       jfieldID fieldID, jobject fromHandle);

/**
 * String operations
 */
KNIEXPORT jsize
KNI_GetStringLength(jstring stringHandle);
KNIEXPORT void
KNI_GetStringRegion(jstring stringHandle, jsize offset,
		    jsize n, jchar* jcharbuf);
KNIEXPORT void
KNI_NewStringUTFPriv(CVMExecEnv* ee, const char* utf8chars,
		     jstring stringHandle);
KNIEXPORT void
KNI_NewStringPriv(CVMExecEnv* ee, const jchar* chars,
		  jsize size, jstring stringHandle);

#define KNI_NewStringUTF(utf8chars, stringHandle) \
    KNI_NewStringUTFPriv(_ee, utf8chars, stringHandle)
#define KNI_NewString(chars, size, stringHandle) \
    KNI_NewStringPriv(_ee, chars, size, stringHandle)

/**
 * Array operations
 */
KNIEXPORT jsize    KNI_GetArrayLength(jarray arrayHandle);
#define KNI_GetArrayLength(arrayHandle)				\
    (CVMID_icellIsNull(arrayHandle) ? -1 :			\
     CVMD_arrayGetLength((CVMArrayOfAnyType*)			\
			 CVMID_icellDirect(_ee, arrayHandle)))

KNIEXPORT jboolean KNI_GetBooleanArrayElement(jbooleanArray arrayHandle,
                       jsize index);
KNIEXPORT jbyte    KNI_GetByteArrayElement(jbyteArray arrayHandle,
                       jsize index);
KNIEXPORT jchar    KNI_GetCharArrayElement(jcharArray arrayHandle,
                       jsize index);
KNIEXPORT jshort   KNI_GetShortArrayElement(jshortArray arrayHandle,
                       jsize index);
KNIEXPORT jint     KNI_GetIntArrayElement(jintArray arrayHandle,
                       jsize index);
KNIEXPORT jlong    KNI_GetLongArrayElement(jlongArray arrayHandle,
                       jsize index);
KNIEXPORT jfloat   KNI_GetFloatArrayElement(jfloatArray arrayHandle,
                       jsize index);
KNIEXPORT jdouble  KNI_GetDoubleArrayElement(jdoubleArray arrayHandle,
                       jsize index);
KNIEXPORT void     KNI_GetObjectArrayElement(jobjectArray arrayHandle,
                       jsize index, jobject toHandle);

KNIEXPORT void     KNI_SetBooleanArrayElement(jbooleanArray arrayHandle,
                       jsize index, jboolean value);
KNIEXPORT void     KNI_SetByteArrayElement(jbyteArray arrayHandle,
                       jsize index, jbyte value);
KNIEXPORT void     KNI_SetCharArrayElement(jcharArray arrayHandle,
                       jsize index, jchar value);
KNIEXPORT void     KNI_SetShortArrayElement(jshortArray arrayHandle,
                       jsize index, jshort value);
KNIEXPORT void     KNI_SetIntArrayElement(jintArray arrayHandle,
                       jsize index, jint value);
KNIEXPORT void     KNI_SetLongArrayElement(jlongArray arrayHandle,
                       jsize index, jlong value);
KNIEXPORT void     KNI_SetFloatArrayElement(jfloatArray arrayHandle,
                       jsize index, jfloat value);
KNIEXPORT void     KNI_SetDoubleArrayElement(jdoubleArray arrayHandle,
                       jsize index, jdouble value);
KNIEXPORT void     KNI_SetObjectArrayElement(jobjectArray arrayHandle,
                       jsize index, jobject fromHandle);

KNIEXPORT void     KNI_GetRawArrayRegion(jarray arrayHandle, jsize offset,
                       jsize n, jbyte* dstBuffer);
KNIEXPORT void     KNI_SetRawArrayRegion(jarray arrayHandle, jsize offset,
                       jsize n, const jbyte* srcBuffer);

/**
 * Parameter passing
 */

KNIEXPORT jboolean KNI_GetParameterAsBoolean(jint index);
KNIEXPORT jbyte    KNI_GetParameterAsByte(jint index);
KNIEXPORT jchar    KNI_GetParameterAsChar(jint index);
KNIEXPORT jshort   KNI_GetParameterAsShort(jint index);
KNIEXPORT jint     KNI_GetParameterAsInt(jint index);
KNIEXPORT jlong    KNI_GetParameterAsLong(jint index);
KNIEXPORT jfloat   KNI_GetParameterAsFloat(jint index);
KNIEXPORT jdouble  KNI_GetParameterAsDouble(jint index);
KNIEXPORT void     KNI_GetParameterAsObject(jint index, jobject toHandle);

#define KNIARG(index) \
   (_arguments[index + (CVMmbIs(*_p_mb, STATIC) ? -1 : 0)].j)

#define KNI_GetParameterAsBoolean(index) ((jboolean)KNIARG(index).i)
#define KNI_GetParameterAsByte(index)    ((jbyte)KNIARG(index).i)
#define KNI_GetParameterAsChar(index)    ((jchar)KNIARG(index).i)
#define KNI_GetParameterAsShort(index)   ((jshort)KNIARG(index).i)
#define KNI_GetParameterAsInt(index)     ((jint)KNIARG(index).i)
#define KNI_GetParameterAsFloat(index)   ((jfloat)KNIARG(index).f)

KNIEXPORT jlong
KNI_GetParameterAsLongPriv(CVMJavaVal64* val64);
KNIEXPORT jdouble
KNI_GetParameterAsDoublePriv(CVMJavaVal64* val64);
#define KNI_GetParameterAsLong(index) \
    CVMjvm2Long((CVMUint32*)&(KNIARG(index)))
#define KNI_GetParameterAsDouble(index) \
    CVMjvm2Double((CVMUint32*)&(KNIARG(index)))

#define KNI_GetParameterAsObject(index, toHandle)			\
    CVMID_icellSetDirect(_ee, toHandle,					\
			 CVMID_icellDirect(_ee, &KNIARG(index).r));

KNIEXPORT void     KNI_GetThisPointer(jobject toHandle);
KNIEXPORT void     KNI_GetClassPointer(jclass toHandle);
#define KNI_GetThisPointer(toHandle)					\
   CVMID_icellSetDirect(_ee, toHandle,					\
			CVMID_icellDirect(_ee, &_arguments[0].j.r))
#define KNI_GetClassPointer(toHandle)				\
{								\
    jclass clazz_ = CVMcbJavaInstance(CVMmbClassBlock(*_p_mb));	\
    CVMID_icellSetDirect(_ee, toHandle,				\
			 CVMID_icellDirect(_ee, clazz_));	\
}

#define KNI_CheckAndReturn(cniCode)		\
    if (CVMexceptionOccurred(_ee)) {		\
	return CNI_EXCEPTION;			\
    } else {					\
	return cniCode;				\
    }

#define            KNI_ReturnVoid()         KNI_CheckAndReturn(CNI_VOID);
#define            KNI_ReturnBoolean(value) KNI_ReturnInt((jboolean)value)
#define            KNI_ReturnByte(value)    KNI_ReturnInt((jbyte)value)
#define            KNI_ReturnChar(value)    KNI_ReturnInt((jchar)value)
#define            KNI_ReturnShort(value)   KNI_ReturnInt((jshort)value)
#define            KNI_ReturnInt(value)		\
    _arguments[0].j.i = (jint)(value);		\
    KNI_CheckAndReturn(CNI_SINGLE);
#define            KNI_ReturnFloat(value)	\
    _arguments[0].j.f = (jfloat)(value);	\
    KNI_CheckAndReturn(CNI_SINGLE);
#define            KNI_ReturnLong(value)	       	\
    CVMlong2Jvm((CVMUint32*)&_arguments[0].j, value);	\
    KNI_CheckAndReturn(CNI_DOUBLE);
#define            KNI_ReturnDouble(value)		\
    CVMdouble2Jvm((CVMUint32*)&_arguments[0].j, value);	\
    KNI_CheckAndReturn(CNI_DOUBLE);

/**
 * Handle operations
 */
#define KNI_StartHandles(n)				\
    CVMID_localrootBeginGcUnsafe(_ee) {			\
        int _dummy /* eat up the trailing semicolon */

/* jobject and  CVMObjectICell* are the same, which is why this works */
#define KNI_DeclareHandle(x) \
    CVMID_localrootDeclareGcUnsafe(CVMObjectICell, x)

#define KNI_IsNullHandle(x) \
    CVMID_icellIsNull(x)

#define KNI_ReleaseHandle(x) \
    CVMID_icellSetNull(x)

#define KNI_EndHandles()				\
        (void)_dummy; /* get rid of compiler warning */	\
    } CVMID_localrootEndGcUnsafe();

#define KNI_EndHandlesAndReturnObject(x)			\
    CVMID_icellAssignDirect(_ee, &_arguments[0].j.r, x);	\
    KNI_EndHandles();						\
    KNI_CheckAndReturn(CNI_SINGLE);

/**
 * Type macros
 */
#define KNI_RETURNTYPE_VOID    CNIResultCode
#define KNI_RETURNTYPE_BOOLEAN CNIResultCode
#define KNI_RETURNTYPE_BYTE    CNIResultCode
#define KNI_RETURNTYPE_CHAR    CNIResultCode
#define KNI_RETURNTYPE_SHORT   CNIResultCode
#define KNI_RETURNTYPE_INT     CNIResultCode
#define KNI_RETURNTYPE_FLOAT   CNIResultCode
#define KNI_RETURNTYPE_LONG    CNIResultCode
#define KNI_RETURNTYPE_DOUBLE  CNIResultCode
#define KNI_RETURNTYPE_OBJECT  CNIResultCode

//
// This definition has been added for KVM compatibility.
// It is not part of the KNI Specification.
//
#define KNI_registerCleanup(instanceHandle, callback)

#ifdef __cplusplus
}
#endif

#endif /* !_JAVASOFT_KNI_H_ */