1 /* src/tests/native/checkjni.c - for testing JNI stuff
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Christian Thalinger
38 #include "native/jni.h"
41 JNIEXPORT jboolean JNICALL Java_checkjni_IsAssignableFrom(JNIEnv *env, jclass clazz, jclass sub, jclass sup)
43 return (*env)->IsAssignableFrom(env, sub, sup);
46 JNIEXPORT jboolean JNICALL Java_checkjni_IsInstanceOf(JNIEnv *env, jclass clazz, jobject obj, jclass c)
48 return (*env)->IsInstanceOf(env, obj, c);
51 JNIEXPORT jboolean JNICALL Java_checkjni_IsSameObject(JNIEnv *env, jclass clazz, jobject obj1, jobject obj2)
53 return (*env)->IsSameObject(env, obj1, obj2);
56 JNIEXPORT jint JNICALL Java_checkjni_PushLocalFrame(JNIEnv *env, jclass clazz, jint capacity)
58 return (*env)->PushLocalFrame(env, capacity);
61 JNIEXPORT void JNICALL Java_checkjni_Throw(JNIEnv *env, jclass clazz)
63 jclass c = (*env)->FindClass(env, "java/lang/Exception");
64 (*env)->ThrowNew(env, c, "Exception from JNI");
67 JNIEXPORT jclass JNICALL Java_checkjni_GetObjectClass(JNIEnv *env, jclass clazz, jobject obj)
69 return (*env)->GetObjectClass(env, obj);
72 #define CHECKJNI_GET_FIELD(type, name, fieldname, sig) \
73 JNIEXPORT type JNICALL Java_checkjni_Get##name##Field(JNIEnv *env, jclass clazz, jobject obj) \
75 jclass c = (*env)->GetObjectClass(env, obj); \
76 jfieldID id = (*env)->GetFieldID(env, c, fieldname, sig); \
77 if ((*env)->ExceptionCheck(env)) return 0; \
78 return (*env)->Get##name##Field(env, obj, id); \
80 CHECKJNI_GET_FIELD(jint, Int, "jfI", "I")
81 CHECKJNI_GET_FIELD(jobject, Object, "jfL", "Ljava/lang/Object;")
83 #define CHECKJNI_GET_STATIC_FIELD(type, name, fieldname, sig) \
84 JNIEXPORT type JNICALL Java_checkjni_GetStatic##name##Field(JNIEnv *env, jclass clazz) \
86 jfieldID id = (*env)->GetStaticFieldID(env, clazz, fieldname, sig); \
87 if ((*env)->ExceptionCheck(env)) return 0; \
88 return (*env)->GetStatic##name##Field(env, clazz, id); \
90 CHECKJNI_GET_STATIC_FIELD(jint, Int, "jsfI", "I")
91 CHECKJNI_GET_STATIC_FIELD(jobject, Object, "jsfL", "Ljava/lang/Object;")
93 #define CHECKJNI_SET_STATIC_FIELD(type, name, fieldname, sig) \
94 JNIEXPORT type JNICALL Java_checkjni_SetStatic##name##Field(JNIEnv *env, jclass clazz, type val) \
96 jfieldID id = (*env)->GetStaticFieldID(env, clazz, fieldname, sig); \
97 if ((*env)->ExceptionCheck(env)) return 0; \
98 (*env)->SetStatic##name##Field(env, clazz, id, val); \
100 CHECKJNI_SET_STATIC_FIELD(jint, Int, "jsfI", "I")
101 CHECKJNI_SET_STATIC_FIELD(jobject, Object, "jsfL", "Ljava/lang/Object;")
103 #define CHECKJNI_NEW_ARRAY(type, name) \
104 JNIEXPORT type##Array JNICALL Java_checkjni_New##name##Array(JNIEnv *env, jclass clazz, jint size) \
110 a = (*env)->New##name##Array(env, size); \
111 p = (*env)->Get##name##ArrayElements(env, a, &iscopy); \
112 for (i = 0; i < size; i++) p[i] = i; \
113 (*env)->Release##name##ArrayElements(env, a, p, 0); \
116 CHECKJNI_NEW_ARRAY(jint, Int)
117 CHECKJNI_NEW_ARRAY(jlong, Long)
119 JNIEXPORT jstring JNICALL Java_checkjni_NewString(JNIEnv *env, jclass clazz, jint type)
122 return (*env)->NewString(env, (jchar *) "Test String from JNI", (jsize) strlen("Test String from JNI"));
124 return (*env)->NewStringUTF(env, "Test String from JNI with UTF");