llvm-gcc-4.2/libjava/classpath/native/jni/java-io/java_io_VMObjectStreamClass.c - llvm-archive - Git at Google

 /* java_io_VMObjectStreamClass.c -- Native methods for VMObjectStreamClass.java
    Copyright (C) 2003, 2004 Free Software Foundation, Inc.

 This file is part of GNU Classpath.

 GNU Classpath is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.

 GNU Classpath is distributed in the hope that it will be useful, but
 WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GNU Classpath; see the file COPYING.  If not, write to the
 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 02110-1301 USA.

 Linking this library statically or dynamically with other modules is
 making a combined work based on this library.  Thus, the terms and
 conditions of the GNU General Public License cover the whole
 combination.

 As a special exception, the copyright holders of this library give you
 permission to link this library with independent modules to produce an
 executable, regardless of the license terms of these independent
 modules, and to copy and distribute the resulting executable under
 terms of your choice, provided that you also meet, for each linked
 independent module, the terms and conditions of the license of that
 module.  An independent module is a module which is not derived from
 or based on this library.  If you modify this library, you may extend
 this exception to your version of the library, but you are not
 obligated to do so.  If you do not wish to do so, delete this
 exception statement from your version. */


 #include <jni.h>
 #include <jcl.h>

 #include <stdlib.h>
 #include <string.h>

 #include "java_io_VMObjectStreamClass.h"

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    hasClassInitializer
  * Signature: (Ljava/lang/Class;)Z
  */
 JNIEXPORT jboolean JNICALL
 Java_java_io_VMObjectStreamClass_hasClassInitializer (JNIEnv * env,
 						      jclass vmosklass
 						      __attribute__ ((__unused__)), jclass klass)
 {
   jmethodID mid = (*env)->GetStaticMethodID (env, klass, "<clinit>", "()V");
   if (mid == NULL)
     {
       (*env)->ExceptionClear (env);
       return JNI_FALSE;
     }
   return JNI_TRUE;
 }

 static void
 throwInternalError (JNIEnv * env)
 {
   jclass internalErrorClass;
   jthrowable previousException, newException;
   jmethodID initException, getMessageID, initCauseID;
   jstring message;

   internalErrorClass = (*env)->FindClass (env, "java/lang/InternalError");
   /** Just give up if this also fails. */
   if (internalErrorClass == NULL)
     return;

   previousException = (*env)->ExceptionOccurred (env);

   if (previousException == NULL)
     {
       (*env)->ThrowNew (env, internalErrorClass,
 			"Unknown error raised by the VM");
       return;
     }

   initException = (*env)->GetMethodID
     (env, internalErrorClass, "<init>", "(Ljava/lang/String;)V");
   getMessageID = (*env)->GetMethodID
     (env, (*env)->GetObjectClass (env, previousException),
      "getMessage", "()Ljava/lang/String;");
   initCauseID = (*env)->GetMethodID
     (env, internalErrorClass, "initCause", "(Ljava/lang/Throwable;)V");

   message = (*env)->CallObjectMethod (env, previousException, getMessageID);

   newException = (*env)->NewObject (env, internalErrorClass, initException,
 				    message);
   (*env)->CallVoidMethod (env, newException, initCauseID, previousException);

   (*env)->ExceptionClear (env);
   (*env)->Throw (env, newException);
 }

 static jfieldID
 getFieldReference (JNIEnv * env, jobject field, const char *type)
 {
   jclass classClass;
   jclass fieldClass;
   jclass declaringClass;
   jclass typeClass;
   jfieldID fid;
   const char *field_name;
   const char *type_name;
   int type_len;
   jmethodID mid;
   jstring name;
   jstring tname;
   int i;

   fieldClass = (*env)->GetObjectClass (env, field);

   mid =
     (*env)->GetMethodID (env, fieldClass, "getName", "()Ljava/lang/String;");
   if (mid == NULL || (*env)->ExceptionOccurred (env) != NULL)
     {
       throwInternalError (env);
       return NULL;
     }

   name = (*env)->CallObjectMethod (env, field, mid);
   field_name = (*env)->GetStringUTFChars (env, name, NULL);

   mid = (*env)->GetMethodID (env, fieldClass,
 			     "getDeclaringClass", "()Ljava/lang/Class;");
   if (mid == NULL || (*env)->ExceptionOccurred (env) != NULL)
     {
       throwInternalError (env);
       return NULL;
     }

   declaringClass = (*env)->CallObjectMethod (env, field, mid);

   /* Do we need to find out the exact type descriptor of the field? */
   if (type == NULL)
     {
       char *the_type;

       mid = (*env)->GetMethodID (env, fieldClass,
 				 "getType", "()Ljava/lang/Class;");

       if (mid == NULL || (*env)->ExceptionOccurred (env) != NULL)
 	{
 	  throwInternalError (env);
 	  return NULL;
 	}

       typeClass = (*env)->CallObjectMethod (env, field, mid);
       classClass = (*env)->FindClass (env, "java/lang/Class");

       mid = (*env)->GetMethodID (env, classClass,
 				 "getName", "()Ljava/lang/String;");

       if (mid == NULL || (*env)->ExceptionOccurred (env) != NULL)
 	{
 	  throwInternalError (env);
 	  return NULL;
 	}

       tname = (*env)->CallObjectMethod (env, typeClass, mid);
       type_name = (*env)->GetStringUTFChars (env, tname, NULL);

       /*
        * If it isn't an array class then the actual field type descriptor
        * starts with 'L', ends with ';' and has '/' instead of '.'.
        */
       type_len = strlen ((char *) type_name);
       if (type_name[0] != '[')
 	{
 	  /* XXX - FIXME - should not use dynamic allocation in core lib. */
 	  the_type = (char *) malloc (type_len + 3);
 	  the_type[0] = 'L';
 	  the_type[type_len + 1] = ';';
 	  the_type[type_len + 2] = '\0';
 	  the_type++;
 	}
       else
 	{
 	  /* XXX - FIXME - should not use dynamic allocation in core lib. */
 	  the_type = (char *) malloc (type_len + 1);
 	  the_type[type_len] = '\0';
 	}

       for (i = 0; i < type_len; i++)
 	if (type_name[i] == '.')
 	  the_type[i] = '/';
 	else
 	  the_type[i] = type_name[i];

       if (type_name[0] != '[')
 	the_type--;

       (*env)->ReleaseStringUTFChars (env, tname, type_name);
       fid = (*env)->GetFieldID (env, declaringClass, field_name, the_type);
       free (the_type);
     }
   else
     {
       type_len = -1;
       fid = (*env)->GetFieldID (env, declaringClass, field_name, type);
     }

   if (fid == NULL)
     {
       throwInternalError (env);
       return NULL;
     }
   (*env)->ReleaseStringUTFChars (env, name, field_name);

   return fid;
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setBooleanNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;Z)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setBooleanNative (JNIEnv * env,
 						   jclass vmosklass
 						   __attribute__ ((__unused__)), jobject field, jobject object, jboolean value)
 {
   jfieldID fid = getFieldReference (env, field, "Z");

   if (fid != NULL)
     (*env)->SetBooleanField (env, object, fid, value);
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setCharNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;C)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setCharNative (JNIEnv * env,
 						jclass vmosklass
 						__attribute__ ((__unused__)),
 						jobject field,
 						jobject object, jchar value)
 {
   jfieldID fid = getFieldReference (env, field, "C");

   if (fid != NULL)
     (*env)->SetCharField (env, object, fid, value);
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setByteNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;B)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setByteNative (JNIEnv * env,
 						jclass vmosklass
 						__attribute__ ((__unused__)),
 						jobject field,
 						jobject object, jbyte value)
 {
   jfieldID fid = getFieldReference (env, field, "B");

   if (fid != NULL)
     (*env)->SetByteField (env, object, fid, value);
 }


 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setShortNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;S)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setShortNative (JNIEnv * env,
 						 jclass vmosklass
 						 __attribute__ ((__unused__)),
 						 jobject field,
 						 jobject object, jshort value)
 {
   jfieldID fid = getFieldReference (env, field, "S");

   if (fid != NULL)
     (*env)->SetShortField (env, object, fid, value);
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setIntNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;I)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setIntNative (JNIEnv * env,
 					       jclass vmosklass
 					       __attribute__ ((__unused__)),
 					       jobject field,
 					       jobject object, jint value)
 {
   jfieldID fid = getFieldReference (env, field, "I");

   if (fid != NULL)
     (*env)->SetIntField (env, object, fid, value);
 }


 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setLongNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;J)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setLongNative (JNIEnv * env,
 						jclass vmosklass
 						__attribute__ ((__unused__)),
 						jobject field,
 						jobject object, jlong value)
 {
   jfieldID fid = getFieldReference (env, field, "J");

   if (fid != NULL)
     (*env)->SetLongField (env, object, fid, value);
 }


 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setFloatNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;F)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setFloatNative (JNIEnv * env,
 						 jclass vmosklass
 						 __attribute__ ((__unused__)),
 						 jobject field,
 						 jobject object, jfloat value)
 {
   jfieldID fid = getFieldReference (env, field, "F");

   if (fid != NULL)
     (*env)->SetFloatField (env, object, fid, value);
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setDoubleNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;D)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setDoubleNative (JNIEnv * env,
 						  jclass vmosklass
 						  __attribute__ ((__unused__)), jobject field, jobject object, jdouble value)
 {
   jfieldID fid = getFieldReference (env, field, "D");

   if (fid != NULL)
     (*env)->SetDoubleField (env, object, fid, value);
 }

 /*
  * Class:     java_io_VMObjectOutputStream
  * Method:    setObjectNative
  * Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;Ljava/lang/Object;)V
  */
 JNIEXPORT void JNICALL
 Java_java_io_VMObjectStreamClass_setObjectNative (JNIEnv * env,
 						  jclass vmosklass
 						  __attribute__ ((__unused__)), jobject field, jobject object, jobject value)
 {
   jfieldID fid = getFieldReference (env, field, NULL);

   if (fid != NULL)
     (*env)->SetObjectField (env, object, fid, value);
 }
	/* java_io_VMObjectStreamClass.c -- Native methods for VMObjectStreamClass.java
	Copyright (C) 2003, 2004 Free Software Foundation, Inc.

	This file is part of GNU Classpath.

	GNU Classpath is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	GNU Classpath is distributed in the hope that it will be useful, but
	WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with GNU Classpath; see the file COPYING. If not, write to the
	Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	02110-1301 USA.

	Linking this library statically or dynamically with other modules is
	making a combined work based on this library. Thus, the terms and
	conditions of the GNU General Public License cover the whole
	combination.

	As a special exception, the copyright holders of this library give you
	permission to link this library with independent modules to produce an
	executable, regardless of the license terms of these independent
	modules, and to copy and distribute the resulting executable under
	terms of your choice, provided that you also meet, for each linked
	independent module, the terms and conditions of the license of that
	module. An independent module is a module which is not derived from
	or based on this library. If you modify this library, you may extend
	this exception to your version of the library, but you are not
	obligated to do so. If you do not wish to do so, delete this
	exception statement from your version. */


	#include <jni.h>
	#include <jcl.h>

	#include <stdlib.h>
	#include <string.h>

	#include "java_io_VMObjectStreamClass.h"

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: hasClassInitializer
	* Signature: (Ljava/lang/Class;)Z
	*/
	JNIEXPORT jboolean JNICALL
	Java_java_io_VMObjectStreamClass_hasClassInitializer (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)), jclass klass)
	{
	jmethodID mid = (*env)->GetStaticMethodID (env, klass, "<clinit>", "()V");
	if (mid == NULL)
	{
	(*env)->ExceptionClear (env);
	return JNI_FALSE;
	}
	return JNI_TRUE;
	}

	static void
	throwInternalError (JNIEnv * env)
	{
	jclass internalErrorClass;
	jthrowable previousException, newException;
	jmethodID initException, getMessageID, initCauseID;
	jstring message;

	internalErrorClass = (*env)->FindClass (env, "java/lang/InternalError");
	/** Just give up if this also fails. */
	if (internalErrorClass == NULL)
	return;

	previousException = (*env)->ExceptionOccurred (env);

	if (previousException == NULL)
	{
	(*env)->ThrowNew (env, internalErrorClass,
	"Unknown error raised by the VM");
	return;
	}

	initException = (*env)->GetMethodID
	(env, internalErrorClass, "<init>", "(Ljava/lang/String;)V");
	getMessageID = (*env)->GetMethodID
	(env, (*env)->GetObjectClass (env, previousException),
	"getMessage", "()Ljava/lang/String;");
	initCauseID = (*env)->GetMethodID
	(env, internalErrorClass, "initCause", "(Ljava/lang/Throwable;)V");

	message = (*env)->CallObjectMethod (env, previousException, getMessageID);

	newException = (*env)->NewObject (env, internalErrorClass, initException,
	message);
	(*env)->CallVoidMethod (env, newException, initCauseID, previousException);

	(*env)->ExceptionClear (env);
	(*env)->Throw (env, newException);
	}

	static jfieldID
	getFieldReference (JNIEnv * env, jobject field, const char *type)
	{
	jclass classClass;
	jclass fieldClass;
	jclass declaringClass;
	jclass typeClass;
	jfieldID fid;
	const char *field_name;
	const char *type_name;
	int type_len;
	jmethodID mid;
	jstring name;
	jstring tname;
	int i;

	fieldClass = (*env)->GetObjectClass (env, field);

	mid =
	(*env)->GetMethodID (env, fieldClass, "getName", "()Ljava/lang/String;");
	if (mid == NULL \|\| (*env)->ExceptionOccurred (env) != NULL)
	{
	throwInternalError (env);
	return NULL;
	}

	name = (*env)->CallObjectMethod (env, field, mid);
	field_name = (*env)->GetStringUTFChars (env, name, NULL);

	mid = (*env)->GetMethodID (env, fieldClass,
	"getDeclaringClass", "()Ljava/lang/Class;");
	if (mid == NULL \|\| (*env)->ExceptionOccurred (env) != NULL)
	{
	throwInternalError (env);
	return NULL;
	}

	declaringClass = (*env)->CallObjectMethod (env, field, mid);

	/* Do we need to find out the exact type descriptor of the field? */
	if (type == NULL)
	{
	char *the_type;

	mid = (*env)->GetMethodID (env, fieldClass,
	"getType", "()Ljava/lang/Class;");

	if (mid == NULL \|\| (*env)->ExceptionOccurred (env) != NULL)
	{
	throwInternalError (env);
	return NULL;
	}

	typeClass = (*env)->CallObjectMethod (env, field, mid);
	classClass = (*env)->FindClass (env, "java/lang/Class");

	mid = (*env)->GetMethodID (env, classClass,
	"getName", "()Ljava/lang/String;");

	if (mid == NULL \|\| (*env)->ExceptionOccurred (env) != NULL)
	{
	throwInternalError (env);
	return NULL;
	}

	tname = (*env)->CallObjectMethod (env, typeClass, mid);
	type_name = (*env)->GetStringUTFChars (env, tname, NULL);

	/*
	* If it isn't an array class then the actual field type descriptor
	* starts with 'L', ends with ';' and has '/' instead of '.'.
	*/
	type_len = strlen ((char *) type_name);
	if (type_name[0] != '[')
	{
	/* XXX - FIXME - should not use dynamic allocation in core lib. */
	the_type = (char *) malloc (type_len + 3);
	the_type[0] = 'L';
	the_type[type_len + 1] = ';';
	the_type[type_len + 2] = '\0';
	the_type++;
	}
	else
	{
	/* XXX - FIXME - should not use dynamic allocation in core lib. */
	the_type = (char *) malloc (type_len + 1);
	the_type[type_len] = '\0';
	}

	for (i = 0; i < type_len; i++)
	if (type_name[i] == '.')
	the_type[i] = '/';
	else
	the_type[i] = type_name[i];

	if (type_name[0] != '[')
	the_type--;

	(*env)->ReleaseStringUTFChars (env, tname, type_name);
	fid = (*env)->GetFieldID (env, declaringClass, field_name, the_type);
	free (the_type);
	}
	else
	{
	type_len = -1;
	fid = (*env)->GetFieldID (env, declaringClass, field_name, type);
	}

	if (fid == NULL)
	{
	throwInternalError (env);
	return NULL;
	}
	(*env)->ReleaseStringUTFChars (env, name, field_name);

	return fid;
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setBooleanNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;Z)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setBooleanNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)), jobject field, jobject object, jboolean value)
	{
	jfieldID fid = getFieldReference (env, field, "Z");

	if (fid != NULL)
	(*env)->SetBooleanField (env, object, fid, value);
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setCharNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;C)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setCharNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jchar value)
	{
	jfieldID fid = getFieldReference (env, field, "C");

	if (fid != NULL)
	(*env)->SetCharField (env, object, fid, value);
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setByteNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;B)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setByteNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jbyte value)
	{
	jfieldID fid = getFieldReference (env, field, "B");

	if (fid != NULL)
	(*env)->SetByteField (env, object, fid, value);
	}


	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setShortNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;S)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setShortNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jshort value)
	{
	jfieldID fid = getFieldReference (env, field, "S");

	if (fid != NULL)
	(*env)->SetShortField (env, object, fid, value);
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setIntNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;I)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setIntNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jint value)
	{
	jfieldID fid = getFieldReference (env, field, "I");

	if (fid != NULL)
	(*env)->SetIntField (env, object, fid, value);
	}


	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setLongNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;J)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setLongNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jlong value)
	{
	jfieldID fid = getFieldReference (env, field, "J");

	if (fid != NULL)
	(*env)->SetLongField (env, object, fid, value);
	}


	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setFloatNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;F)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setFloatNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)),
	jobject field,
	jobject object, jfloat value)
	{
	jfieldID fid = getFieldReference (env, field, "F");

	if (fid != NULL)
	(*env)->SetFloatField (env, object, fid, value);
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setDoubleNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;D)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setDoubleNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)), jobject field, jobject object, jdouble value)
	{
	jfieldID fid = getFieldReference (env, field, "D");

	if (fid != NULL)
	(*env)->SetDoubleField (env, object, fid, value);
	}

	/*
	* Class: java_io_VMObjectOutputStream
	* Method: setObjectNative
	* Signature: (Ljava/lang/reflect/Field;Ljava/lang/Object;Ljava/lang/Object;)V
	*/
	JNIEXPORT void JNICALL
	Java_java_io_VMObjectStreamClass_setObjectNative (JNIEnv * env,
	jclass vmosklass
	__attribute__ ((__unused__)), jobject field, jobject object, jobject value)
	{
	jfieldID fid = getFieldReference (env, field, NULL);

	if (fid != NULL)
	(*env)->SetObjectField (env, object, fid, value);
	}