The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* //device/libs/android_runtime/android_debug_JNITest.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #define LOG_TAG "DebugJNI" |
| 19 | |
| 20 | #include "jni.h" |
| 21 | #include "nativehelper/JNIHelp.h" |
| 22 | #include "utils/Log.h" |
| 23 | #include "utils/misc.h" |
| 24 | //#include "android_runtime/AndroidRuntime.h" |
| 25 | |
| 26 | namespace android { |
| 27 | |
| 28 | /* |
| 29 | * Implements: |
| 30 | * native int part1(int intArg, double doubleArg, String stringArg, |
| 31 | * int[] arrayArg) |
| 32 | */ |
| 33 | static jint android_debug_JNITest_part1(JNIEnv* env, jobject object, |
| 34 | jint intArg, jdouble doubleArg, jstring stringArg, jobjectArray arrayArg) |
| 35 | { |
| 36 | jclass clazz; |
| 37 | jmethodID part2id; |
| 38 | jsize arrayLen; |
| 39 | jint arrayVal; |
| 40 | int result = -2; |
| 41 | |
Steve Block | 6215d3f | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 42 | ALOGI("JNI test: in part1, intArg=%d, doubleArg=%.3f\n", intArg, doubleArg); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 43 | |
| 44 | /* find "int part2(double doubleArg, int fromArray, String stringArg)" */ |
| 45 | clazz = env->GetObjectClass(object); |
| 46 | part2id = env->GetMethodID(clazz, |
| 47 | "part2", "(DILjava/lang/String;)I"); |
| 48 | if (part2id == NULL) { |
Steve Block | 3762c31 | 2012-01-06 19:20:56 +0000 | [diff] [blame] | 49 | ALOGE("JNI test: unable to find part2\n"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 50 | return -1; |
| 51 | } |
| 52 | |
| 53 | /* get the length of the array */ |
| 54 | arrayLen = env->GetArrayLength(arrayArg); |
Steve Block | 6215d3f | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 55 | ALOGI(" array size is %d\n", arrayLen); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 56 | |
| 57 | /* |
| 58 | * Get the last element in the array. |
| 59 | * Use the Get<type>ArrayElements functions instead if you need access |
| 60 | * to multiple elements. |
| 61 | */ |
| 62 | arrayVal = (int) env->GetObjectArrayElement(arrayArg, arrayLen-1); |
Steve Block | 6215d3f | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 63 | ALOGI(" array val is %d\n", arrayVal); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 64 | |
| 65 | /* call this->part2 */ |
| 66 | result = env->CallIntMethod(object, part2id, |
| 67 | doubleArg, arrayVal, stringArg); |
| 68 | |
| 69 | return result; |
| 70 | } |
| 71 | |
| 72 | /* |
| 73 | * Implements: |
| 74 | * private static native int part3(String stringArg); |
| 75 | */ |
| 76 | static jint android_debug_JNITest_part3(JNIEnv* env, jclass clazz, |
| 77 | jstring stringArg) |
| 78 | { |
| 79 | const char* utfChars; |
| 80 | jboolean isCopy; |
| 81 | |
Steve Block | 6215d3f | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 82 | ALOGI("JNI test: in part3\n"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 83 | |
| 84 | utfChars = env->GetStringUTFChars(stringArg, &isCopy); |
| 85 | |
Steve Block | 6215d3f | 2012-01-04 20:05:49 +0000 | [diff] [blame] | 86 | ALOGI(" String is '%s', isCopy=%d\n", (const char*) utfChars, isCopy); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 87 | |
| 88 | env->ReleaseStringUTFChars(stringArg, utfChars); |
| 89 | |
| 90 | return 2000; |
| 91 | } |
| 92 | |
| 93 | /* |
| 94 | * JNI registration. |
| 95 | */ |
| 96 | static JNINativeMethod gMethods[] = { |
| 97 | /* name, signature, funcPtr */ |
| 98 | { "part1", "(IDLjava/lang/String;[I)I", |
| 99 | (void*) android_debug_JNITest_part1 }, |
| 100 | { "part3", "(Ljava/lang/String;)I", |
| 101 | (void*) android_debug_JNITest_part3 }, |
| 102 | }; |
| 103 | int register_android_debug_JNITest(JNIEnv* env) |
| 104 | { |
| 105 | return jniRegisterNativeMethods(env, "android/debug/JNITest", |
| 106 | gMethods, NELEM(gMethods)); |
| 107 | } |
| 108 | |
| 109 | #if 0 |
| 110 | /* trampoline into C++ */ |
| 111 | extern "C" |
| 112 | int register_android_debug_JNITest_C(JNIEnv* env) |
| 113 | { |
| 114 | return android::register_android_debug_JNITest(env); |
| 115 | } |
| 116 | #endif |
| 117 | |
| 118 | }; // namespace android |
| 119 | |