120 lines
3.2 KiB
C++
120 lines
3.2 KiB
C++
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/* //device/libs/android_runtime/android_debug_JNITest.cpp
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**
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** Copyright 2006, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#define LOG_TAG "DebugJNI"
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#include "jni.h"
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#include "nativehelper/JNIHelp.h"
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#include "utils/Log.h"
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#include "utils/misc.h"
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//#include "android_runtime/AndroidRuntime.h"
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namespace android {
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/*
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* Implements:
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* native int part1(int intArg, double doubleArg, String stringArg,
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* int[] arrayArg)
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*/
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static jint android_debug_JNITest_part1(JNIEnv* env, jobject object,
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jint intArg, jdouble doubleArg, jstring stringArg, jobjectArray arrayArg)
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{
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jclass clazz;
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jmethodID part2id;
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jsize arrayLen;
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jint arrayVal;
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int result = -2;
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LOGI("JNI test: in part1, intArg=%d, doubleArg=%.3f\n", intArg, doubleArg);
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/* find "int part2(double doubleArg, int fromArray, String stringArg)" */
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clazz = env->GetObjectClass(object);
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part2id = env->GetMethodID(clazz,
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"part2", "(DILjava/lang/String;)I");
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if (part2id == NULL) {
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LOGE("JNI test: unable to find part2\n");
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return -1;
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}
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/* get the length of the array */
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arrayLen = env->GetArrayLength(arrayArg);
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LOGI(" array size is %d\n", arrayLen);
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/*
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* Get the last element in the array.
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* Use the Get<type>ArrayElements functions instead if you need access
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* to multiple elements.
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*/
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arrayVal = (int) env->GetObjectArrayElement(arrayArg, arrayLen-1);
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LOGI(" array val is %d\n", arrayVal);
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/* call this->part2 */
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result = env->CallIntMethod(object, part2id,
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doubleArg, arrayVal, stringArg);
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return result;
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}
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/*
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* Implements:
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* private static native int part3(String stringArg);
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*/
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static jint android_debug_JNITest_part3(JNIEnv* env, jclass clazz,
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jstring stringArg)
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{
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const char* utfChars;
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jboolean isCopy;
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LOGI("JNI test: in part3\n");
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utfChars = env->GetStringUTFChars(stringArg, &isCopy);
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LOGI(" String is '%s', isCopy=%d\n", (const char*) utfChars, isCopy);
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env->ReleaseStringUTFChars(stringArg, utfChars);
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return 2000;
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}
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/*
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* JNI registration.
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*/
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static JNINativeMethod gMethods[] = {
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/* name, signature, funcPtr */
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{ "part1", "(IDLjava/lang/String;[I)I",
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(void*) android_debug_JNITest_part1 },
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{ "part3", "(Ljava/lang/String;)I",
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(void*) android_debug_JNITest_part3 },
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};
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int register_android_debug_JNITest(JNIEnv* env)
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{
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return jniRegisterNativeMethods(env, "android/debug/JNITest",
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gMethods, NELEM(gMethods));
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}
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#if 0
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/* trampoline into C++ */
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extern "C"
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int register_android_debug_JNITest_C(JNIEnv* env)
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{
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return android::register_android_debug_JNITest(env);
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}
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#endif
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}; // namespace android
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