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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "GraphicsStatsService"
     18 
     19 #include <jni.h>
     20 #include <log/log.h>
     21 #include <nativehelper/JNIHelp.h>
     22 #include <ScopedPrimitiveArray.h>
     23 #include <ScopedUtfChars.h>
     24 #include <JankTracker.h>
     25 #include <service/GraphicsStatsService.h>
     26 
     27 namespace android {
     28 
     29 using namespace android::uirenderer;
     30 
     31 static jint getAshmemSize(JNIEnv*, jobject) {
     32     return sizeof(ProfileData);
     33 }
     34 
     35 static jlong createDump(JNIEnv*, jobject, jint fd, jboolean isProto) {
     36     GraphicsStatsService::Dump* dump = GraphicsStatsService::createDump(fd, isProto
     37             ? GraphicsStatsService::DumpType::Protobuf : GraphicsStatsService::DumpType::Text);
     38     return reinterpret_cast<jlong>(dump);
     39 }
     40 
     41 static void addToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath, jstring jpackage,
     42         jint versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
     43     std::string path;
     44     const ProfileData* data = nullptr;
     45     LOG_ALWAYS_FATAL_IF(jdata == nullptr && jpath == nullptr, "Path and data can't both be null");
     46     if (jdata != nullptr) {
     47         ScopedByteArrayRO buffer(env, jdata);
     48         LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
     49                 "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
     50         data = reinterpret_cast<const ProfileData*>(buffer.get());
     51     }
     52     if (jpath != nullptr) {
     53         ScopedUtfChars pathChars(env, jpath);
     54         LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
     55         path.assign(pathChars.c_str(), pathChars.size());
     56     }
     57     ScopedUtfChars packageChars(env, jpackage);
     58     LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
     59     GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
     60     LOG_ALWAYS_FATAL_IF(!dump, "null passed for dump pointer");
     61 
     62     const std::string package(packageChars.c_str(), packageChars.size());
     63     GraphicsStatsService::addToDump(dump, path, package, versionCode, startTime, endTime, data);
     64 }
     65 
     66 static void addFileToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath) {
     67     ScopedUtfChars pathChars(env, jpath);
     68     LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
     69     const std::string path(pathChars.c_str(), pathChars.size());
     70     GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
     71     GraphicsStatsService::addToDump(dump, path);
     72 }
     73 
     74 static void finishDump(JNIEnv*, jobject, jlong dumpPtr) {
     75     GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
     76     GraphicsStatsService::finishDump(dump);
     77 }
     78 
     79 static void saveBuffer(JNIEnv* env, jobject clazz, jstring jpath, jstring jpackage,
     80         jint versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
     81     ScopedByteArrayRO buffer(env, jdata);
     82     LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
     83             "Buffer size %zu doesn't match expected %zu!", buffer.size(), sizeof(ProfileData));
     84     ScopedUtfChars pathChars(env, jpath);
     85     LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
     86     ScopedUtfChars packageChars(env, jpackage);
     87     LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(), "Failed to get path chars");
     88 
     89     const std::string path(pathChars.c_str(), pathChars.size());
     90     const std::string package(packageChars.c_str(), packageChars.size());
     91     const ProfileData* data = reinterpret_cast<const ProfileData*>(buffer.get());
     92     GraphicsStatsService::saveBuffer(path, package, versionCode, startTime, endTime, data);
     93 }
     94 
     95 static const JNINativeMethod sMethods[] = {
     96     { "nGetAshmemSize", "()I", (void*) getAshmemSize },
     97     { "nCreateDump", "(IZ)J", (void*) createDump },
     98     { "nAddToDump", "(JLjava/lang/String;Ljava/lang/String;IJJ[B)V", (void*) addToDump },
     99     { "nAddToDump", "(JLjava/lang/String;)V", (void*) addFileToDump },
    100     { "nFinishDump", "(J)V", (void*) finishDump },
    101     { "nSaveBuffer", "(Ljava/lang/String;Ljava/lang/String;IJJ[B)V", (void*) saveBuffer },
    102 };
    103 
    104 int register_android_server_GraphicsStatsService(JNIEnv* env)
    105 {
    106     return jniRegisterNativeMethods(env, "com/android/server/GraphicsStatsService",
    107                                     sMethods, NELEM(sMethods));
    108 }
    109 
    110 } // namespace android