| /* |
| * Copyright (C) 2007-2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <android-base/macros.h> |
| #include <log/log_id.h> |
| |
| #include <nativehelper/JNIHelp.h> |
| #include "jni.h" |
| |
| #include "core_jni_helpers.h" |
| #include "eventlog_helper.h" |
| |
| namespace android { |
| |
| constexpr char kEventLogEventClass[] = "android/util/EventLog$Event"; |
| template class EventLogHelper<log_id_t::LOG_ID_EVENTS, kEventLogEventClass>; |
| using ELog = EventLogHelper<log_id_t::LOG_ID_EVENTS, kEventLogEventClass>; |
| |
| /* |
| * In class android.util.EventLog: |
| * static native void readEvents(int[] tags, Collection<Event> output) |
| * |
| * Reads events from the event log |
| */ |
| static void android_util_EventLog_readEvents(JNIEnv* env, jobject clazz ATTRIBUTE_UNUSED, |
| jintArray tags, |
| jobject out) { |
| |
| if (tags == NULL || out == NULL) { |
| jniThrowNullPointerException(env, NULL); |
| return; |
| } |
| |
| ELog::readEvents(env, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, tags, 0, out); |
| } |
| /* |
| * In class android.util.EventLog: |
| * static native void readEventsOnWrapping(int[] tags, long timestamp, Collection<Event> output) |
| * |
| * Reads events from the event log, blocking until events after timestamp are to be overwritten. |
| */ |
| static void android_util_EventLog_readEventsOnWrapping(JNIEnv* env, jobject clazz ATTRIBUTE_UNUSED, |
| jintArray tags, |
| jlong timestamp, |
| jobject out) { |
| if (tags == NULL || out == NULL) { |
| jniThrowNullPointerException(env, NULL); |
| return; |
| } |
| ELog::readEvents(env, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK | ANDROID_LOG_WRAP, tags, |
| timestamp, out); |
| } |
| |
| /* |
| * JNI registration. |
| */ |
| static const JNINativeMethod gRegisterMethods[] = { |
| /* name, signature, funcPtr */ |
| { "writeEvent", "(II)I", (void*) ELog::writeEventInteger }, |
| { "writeEvent", "(IJ)I", (void*) ELog::writeEventLong }, |
| { "writeEvent", "(IF)I", (void*) ELog::writeEventFloat }, |
| { "writeEvent", "(ILjava/lang/String;)I", (void*) ELog::writeEventString }, |
| { "writeEvent", "(I[Ljava/lang/Object;)I", (void*) ELog::writeEventArray }, |
| { "readEvents", |
| "([ILjava/util/Collection;)V", |
| (void*) android_util_EventLog_readEvents |
| }, |
| { "readEventsOnWrapping", |
| "([IJLjava/util/Collection;)V", |
| (void*) android_util_EventLog_readEventsOnWrapping |
| }, |
| }; |
| |
| int register_android_util_EventLog(JNIEnv* env) { |
| ELog::Init(env); |
| |
| return RegisterMethodsOrDie( |
| env, |
| "android/util/EventLog", |
| gRegisterMethods, NELEM(gRegisterMethods)); |
| } |
| |
| }; // namespace android |