Merge "Public StatsLog API for generic mainline logging." (e1556e90) · Commits · e / os / android_frameworks_base

api/system-current.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -7777,6 +7777,10 @@ package android.util {
		method public int getUid();
		}

		public final class StatsLog {
		method public static void writeRaw(@NonNull byte[], int);
		}

		}

		package android.view {

core/java/android/util/StatsLog.java

+12 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package android.util;

		import android.annotation.NonNull;
		import android.annotation.SystemApi;
		import android.os.IStatsManager;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		@@ -113,4 +115,14 @@ public final class StatsLog extends StatsLogInternal {
		sService = IStatsManager.Stub.asInterface(ServiceManager.getService("stats"));
		return sService;
		}

		/**
		* Write an event to stats log using the raw format.
		*
		* @param buffer The encoded buffer of data to write..
		* @param size The number of bytes from the buffer to write.
		* @hide
		*/
		@SystemApi
		public static native void writeRaw(@NonNull byte[] buffer, int size);
		}

core/jni/Android.bp

+5 −4

Original line number	Diff line number	Diff line

		genrule {
		name: "android_util_StatsLog.cpp",
		name: "android_util_StatsLogInternal.cpp",
		tools: ["stats-log-api-gen"],
		cmd: "$(location stats-log-api-gen) --jni $(genDir)/android_util_StatsLog.cpp",
		cmd: "$(location stats-log-api-gen) --jni $(genDir)/android_util_StatsLogInternal.cpp",
		out: [
		"android_util_StatsLog.cpp",
		"android_util_StatsLogInternal.cpp",
		],
		}

		@@ -112,6 +112,7 @@ cc_library_shared {
		"android_util_Binder.cpp",
		"android_util_EventLog.cpp",
		"android_util_Log.cpp",
		"android_util_StatsLog.cpp",
		"android_util_MemoryIntArray.cpp",
		"android_util_PathParser.cpp",
		"android_util_Process.cpp",
		@@ -292,7 +293,7 @@ cc_library_shared {
		"server_configurable_flags",
		],

		generated_sources: ["android_util_StatsLog.cpp"],
		generated_sources: ["android_util_StatsLogInternal.cpp"],

		local_include_dirs: ["android/graphics"],
		export_include_dirs: [

core/jni/AndroidRuntime.cpp

+2 −0

Original line number	Diff line number	Diff line
		@@ -120,6 +120,7 @@ extern int register_android_app_admin_SecurityLog(JNIEnv* env);
		extern int register_android_content_AssetManager(JNIEnv* env);
		extern int register_android_util_EventLog(JNIEnv* env);
		extern int register_android_util_StatsLog(JNIEnv* env);
		extern int register_android_util_StatsLogInternal(JNIEnv* env);
		extern int register_android_util_Log(JNIEnv* env);
		extern int register_android_util_MemoryIntArray(JNIEnv* env);
		extern int register_android_util_PathParser(JNIEnv* env);
		@@ -1396,6 +1397,7 @@ static const RegJNIRec gRegJNI[] = {
		REG_JNI(register_android_util_MemoryIntArray),
		REG_JNI(register_android_util_PathParser),
		REG_JNI(register_android_util_StatsLog),
		REG_JNI(register_android_util_StatsLogInternal),
		REG_JNI(register_android_app_admin_SecurityLog),
		REG_JNI(register_android_content_AssetManager),
		REG_JNI(register_android_content_StringBlock),

core/jni/android_util_StatsLog.cpp

0 → 100644

+69 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2019 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.
		*/

		#define LOG_NAMESPACE "StatsLog.tag."
		#define LOG_TAG "StatsLog_println"

		#include <assert.h>
		#include <cutils/properties.h>

		#include "jni.h"
		#include <nativehelper/JNIHelp.h>
		#include "utils/misc.h"
		#include "core_jni_helpers.h"
		#include "stats_event_list.h"

		namespace android {

		static void android_util_StatsLog_writeRaw(JNIEnv* env, jobject clazz, jbyteArray buf, jint size)
		{
		if (buf == NULL) {
		return;
		}
		jint actualSize = env->GetArrayLength(buf);
		if (actualSize < size) {
		return;
		}

		jbyte* bufferArray = env->GetByteArrayElements(buf, NULL);
		if (bufferArray == NULL) {
		return;
		}
		const uint32_t statsEventTag = 1937006964;
		struct iovec vec[2];
		vec[0].iov_base = (void*) &statsEventTag;
		vec[0].iov_len = sizeof(statsEventTag);
		vec[1].iov_base = (void*) bufferArray;
		vec[1].iov_len = size;
		write_to_statsd(vec, 2);

		env->ReleaseByteArrayElements(buf, bufferArray, 0);
		}

		/*
		* JNI registration.
		*/
		static const JNINativeMethod gMethods[] = {
		/* name, signature, funcPtr */
		{ "writeRaw", "([BI)V", (void*) android_util_StatsLog_writeRaw },
		};

		int register_android_util_StatsLog(JNIEnv* env)
		{
		return RegisterMethodsOrDie(env, "android/util/StatsLog", gMethods, NELEM(gMethods));
		}

		}; // namespace android