71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* Copyright (C) 2008 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 "UEventObserver"
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#include "utils/Log.h"
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#include "hardware_legacy/uevent.h"
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#include "jni.h"
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#include "JNIHelp.h"
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#include "android_runtime/AndroidRuntime.h"
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namespace android
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{
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static void
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android_os_UEventObserver_native_setup(JNIEnv *env, jclass clazz)
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{
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if (!uevent_init()) {
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jniThrowException(env, "java/lang/RuntimeException",
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"Unable to open socket for UEventObserver");
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}
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}
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static int
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android_os_UEventObserver_next_event(JNIEnv *env, jclass clazz, jbyteArray jbuffer)
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{
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int buf_sz = env->GetArrayLength(jbuffer);
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char *buffer = (char*)env->GetByteArrayElements(jbuffer, NULL);
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int length = uevent_next_event(buffer, buf_sz - 1);
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env->ReleaseByteArrayElements(jbuffer, (jbyte*)buffer, 0);
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return length;
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}
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static JNINativeMethod gMethods[] = {
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{"native_setup", "()V", (void *)android_os_UEventObserver_native_setup},
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{"next_event", "([B)I", (void *)android_os_UEventObserver_next_event},
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};
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int register_android_os_UEventObserver(JNIEnv *env)
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{
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jclass clazz;
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clazz = env->FindClass("android/os/UEventObserver");
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if (clazz == NULL) {
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LOGE("Can't find android/os/UEventObserver");
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return -1;
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}
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return AndroidRuntime::registerNativeMethods(env,
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"android/os/UEventObserver", gMethods, NELEM(gMethods));
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}
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} // namespace android
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