1 /* src/tests/native/checkjni.c - for testing JNI stuff
3 Copyright (C) 1996-2005, 2006, 2008
4 CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
6 This file is part of CACAO.
8 This program is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License as
10 published by the Free Software Foundation; either version 2, or (at
11 your option) any later version.
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
31 #include "native/jni.hpp"
34 JNIEXPORT jboolean JNICALL Java_checkjni_IsAssignableFrom(JNIEnv *env, jclass clazz, jclass sub, jclass sup)
36 return (*env)->IsAssignableFrom(env, sub, sup);
39 JNIEXPORT jboolean JNICALL Java_checkjni_IsInstanceOf(JNIEnv *env, jclass clazz, jobject obj, jclass c)
41 return (*env)->IsInstanceOf(env, obj, c);
44 JNIEXPORT jboolean JNICALL Java_checkjni_IsSameObject(JNIEnv *env, jclass clazz, jobject obj1, jobject obj2)
46 return (*env)->IsSameObject(env, obj1, obj2);
49 JNIEXPORT jint JNICALL Java_checkjni_PushLocalFrame(JNIEnv *env, jclass clazz, jint capacity)
51 return (*env)->PushLocalFrame(env, capacity);
54 JNIEXPORT void JNICALL Java_checkjni_Throw(JNIEnv *env, jclass clazz)
56 jclass c = (*env)->FindClass(env, "java/lang/Exception");
57 (*env)->ThrowNew(env, c, "Exception from JNI");
60 JNIEXPORT jclass JNICALL Java_checkjni_GetObjectClass(JNIEnv *env, jclass clazz, jobject obj)
62 return (*env)->GetObjectClass(env, obj);
65 #define CHECKJNI_GET_FIELD(type, name, fieldname, sig) \
66 JNIEXPORT type JNICALL Java_checkjni_Get##name##Field(JNIEnv *env, jclass clazz, jobject obj) \
68 jclass c = (*env)->GetObjectClass(env, obj); \
69 jfieldID id = (*env)->GetFieldID(env, c, fieldname, sig); \
70 if ((*env)->ExceptionCheck(env)) return 0; \
71 return (*env)->Get##name##Field(env, obj, id); \
73 CHECKJNI_GET_FIELD(jint, Int, "jfI", "I")
74 CHECKJNI_GET_FIELD(jobject, Object, "jfL", "Ljava/lang/Object;")
76 #define CHECKJNI_GET_STATIC_FIELD(type, name, fieldname, sig) \
77 JNIEXPORT type JNICALL Java_checkjni_GetStatic##name##Field(JNIEnv *env, jclass clazz) \
79 jfieldID id = (*env)->GetStaticFieldID(env, clazz, fieldname, sig); \
80 if ((*env)->ExceptionCheck(env)) return 0; \
81 return (*env)->GetStatic##name##Field(env, clazz, id); \
83 CHECKJNI_GET_STATIC_FIELD(jint, Int, "jsfI", "I")
84 CHECKJNI_GET_STATIC_FIELD(jobject, Object, "jsfL", "Ljava/lang/Object;")
86 #define CHECKJNI_SET_STATIC_FIELD(type, name, fieldname, sig) \
87 JNIEXPORT type JNICALL Java_checkjni_SetStatic##name##Field(JNIEnv *env, jclass clazz, type val) \
89 jfieldID id = (*env)->GetStaticFieldID(env, clazz, fieldname, sig); \
90 if ((*env)->ExceptionCheck(env)) return 0; \
91 (*env)->SetStatic##name##Field(env, clazz, id, val); \
93 CHECKJNI_SET_STATIC_FIELD(jint, Int, "jsfI", "I")
94 CHECKJNI_SET_STATIC_FIELD(jobject, Object, "jsfL", "Ljava/lang/Object;")
96 #define CHECKJNI_NEW_ARRAY(type, name) \
97 JNIEXPORT type##Array JNICALL Java_checkjni_New##name##Array(JNIEnv *env, jclass clazz, jint size) \
103 a = (*env)->New##name##Array(env, size); \
104 p = (*env)->Get##name##ArrayElements(env, a, &iscopy); \
105 for (i = 0; i < size; i++) p[i] = i; \
106 (*env)->Release##name##ArrayElements(env, a, p, 0); \
109 CHECKJNI_NEW_ARRAY(jint, Int)
110 CHECKJNI_NEW_ARRAY(jlong, Long)
112 JNIEXPORT jstring JNICALL Java_checkjni_NewString(JNIEnv *env, jclass clazz, jint type)
115 return (*env)->NewString(env, (jchar *) "Test String from JNI", (jsize) strlen("Test String from JNI"));
117 return (*env)->NewStringUTF(env, "Test String from JNI with UTF");