1 files changed, 195 insertions, 0 deletions
diff --git a/libs/hwui/jni/GraphicsStatsService.cpp b/libs/hwui/jni/GraphicsStatsService.cpp
new file mode 100644
index 000000000000..ef0aacc4d9ec
--- /dev/null
+++ b/libs/hwui/jni/GraphicsStatsService.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017 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_TAG "GraphicsStatsService"
+
+#include <JankTracker.h>
+#include <jni.h>
+#include <log/log.h>
+#include <nativehelper/JNIHelp.h>
+#include <nativehelper/ScopedPrimitiveArray.h>
+#include <nativehelper/ScopedUtfChars.h>
+#include <service/GraphicsStatsService.h>
+#include <stats_event.h>
+#include <stats_pull_atom_callback.h>
+#include <statslog.h>
+#include "core_jni_helpers.h"
+
+namespace android {
+
+using namespace android::uirenderer;
+
+static jint getAshmemSize(JNIEnv*, jobject) {
+    return sizeof(ProfileData);
+}
+
+static jlong createDump(JNIEnv*, jobject, jint fd, jboolean isProto) {
+    GraphicsStatsService::Dump* dump =
+            GraphicsStatsService::createDump(fd,
+                                             isProto ? GraphicsStatsService::DumpType::Protobuf
+                                                     : GraphicsStatsService::DumpType::Text);
+    return reinterpret_cast<jlong>(dump);
+}
+
+static void addToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath, jstring jpackage,
+                      jlong versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
+    std::string path;
+    const ProfileData* data = nullptr;
+    LOG_ALWAYS_FATAL_IF(jdata == nullptr && jpath == nullptr, "Path and data can't both be null");
+    ScopedByteArrayRO buffer{env};
+    if (jdata != nullptr) {
+        buffer.reset(jdata);
+        LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
+                            "Buffer size %zu doesn't match expected %zu!", buffer.size(),
+                            sizeof(ProfileData));
+        data = reinterpret_cast<const ProfileData*>(buffer.get());
+    }
+    if (jpath != nullptr) {
+        ScopedUtfChars pathChars(env, jpath);
+        LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(),
+                            "Failed to get path chars");
+        path.assign(pathChars.c_str(), pathChars.size());
+    }
+    ScopedUtfChars packageChars(env, jpackage);
+    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(),
+                        "Failed to get path chars");
+    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
+    LOG_ALWAYS_FATAL_IF(!dump, "null passed for dump pointer");
+
+    const std::string package(packageChars.c_str(), packageChars.size());
+    GraphicsStatsService::addToDump(dump, path, package, versionCode, startTime, endTime, data);
+}
+
+static void addFileToDump(JNIEnv* env, jobject, jlong dumpPtr, jstring jpath) {
+    ScopedUtfChars pathChars(env, jpath);
+    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
+    const std::string path(pathChars.c_str(), pathChars.size());
+    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
+    GraphicsStatsService::addToDump(dump, path);
+}
+
+static void finishDump(JNIEnv*, jobject, jlong dumpPtr) {
+    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
+    GraphicsStatsService::finishDump(dump);
+}
+
+static void finishDumpInMemory(JNIEnv* env, jobject, jlong dumpPtr, jlong pulledData,
+                               jboolean lastFullDay) {
+    GraphicsStatsService::Dump* dump = reinterpret_cast<GraphicsStatsService::Dump*>(dumpPtr);
+    AStatsEventList* data = reinterpret_cast<AStatsEventList*>(pulledData);
+    GraphicsStatsService::finishDumpInMemory(dump, data, lastFullDay == JNI_TRUE);
+}
+
+static void saveBuffer(JNIEnv* env, jobject clazz, jstring jpath, jstring jpackage,
+                       jlong versionCode, jlong startTime, jlong endTime, jbyteArray jdata) {
+    ScopedByteArrayRO buffer(env, jdata);
+    LOG_ALWAYS_FATAL_IF(buffer.size() != sizeof(ProfileData),
+                        "Buffer size %zu doesn't match expected %zu!", buffer.size(),
+                        sizeof(ProfileData));
+    ScopedUtfChars pathChars(env, jpath);
+    LOG_ALWAYS_FATAL_IF(pathChars.size() <= 0 || !pathChars.c_str(), "Failed to get path chars");
+    ScopedUtfChars packageChars(env, jpackage);
+    LOG_ALWAYS_FATAL_IF(packageChars.size() <= 0 || !packageChars.c_str(),
+                        "Failed to get path chars");
+
+    const std::string path(pathChars.c_str(), pathChars.size());
+    const std::string package(packageChars.c_str(), packageChars.size());
+    const ProfileData* data = reinterpret_cast<const ProfileData*>(buffer.get());
+    GraphicsStatsService::saveBuffer(path, package, versionCode, startTime, endTime, data);
+}
+
+static jobject gGraphicsStatsServiceObject = nullptr;
+static jmethodID gGraphicsStatsService_pullGraphicsStatsMethodID;
+
+static JNIEnv* getJNIEnv() {
+    JavaVM* vm = AndroidRuntime::getJavaVM();
+    JNIEnv* env = nullptr;
+    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+        if (vm->AttachCurrentThreadAsDaemon(&env, nullptr) != JNI_OK) {
+            LOG_ALWAYS_FATAL("Failed to AttachCurrentThread!");
+        }
+    }
+    return env;
+}
+
+// graphicsStatsPullCallback is invoked by statsd service to pull GRAPHICS_STATS atom.
+static AStatsManager_PullAtomCallbackReturn graphicsStatsPullCallback(int32_t atom_tag,
+                                                                      AStatsEventList* data,
+                                                                      void* cookie) {
+    JNIEnv* env = getJNIEnv();
+    if (!env) {
+        return false;
+    }
+    if (gGraphicsStatsServiceObject == nullptr) {
+        ALOGE("Failed to get graphicsstats service");
+        return AStatsManager_PULL_SKIP;
+    }
+
+    for (bool lastFullDay : {true, false}) {
+        env->CallVoidMethod(gGraphicsStatsServiceObject,
+                            gGraphicsStatsService_pullGraphicsStatsMethodID,
+                            (jboolean)(lastFullDay ? JNI_TRUE : JNI_FALSE),
+                            reinterpret_cast<jlong>(data));
+        if (env->ExceptionCheck()) {
+            env->ExceptionDescribe();
+            env->ExceptionClear();
+            ALOGE("Failed to invoke graphicsstats service");
+            return AStatsManager_PULL_SKIP;
+        }
+    }
+    return AStatsManager_PULL_SUCCESS;
+}
+
+// Register a puller for GRAPHICS_STATS atom with the statsd service.
+static void nativeInit(JNIEnv* env, jobject javaObject) {
+    gGraphicsStatsServiceObject = env->NewGlobalRef(javaObject);
+    AStatsManager_PullAtomMetadata* metadata = AStatsManager_PullAtomMetadata_obtain();
+    AStatsManager_PullAtomMetadata_setCoolDownNs(metadata, 10 * 1000000);  // 10 milliseconds
+    AStatsManager_PullAtomMetadata_setTimeoutNs(metadata, 2 * NS_PER_SEC); // 2 seconds
+
+    AStatsManager_registerPullAtomCallback(android::util::GRAPHICS_STATS,
+                                           &graphicsStatsPullCallback, metadata, nullptr);
+
+    AStatsManager_PullAtomMetadata_release(metadata);
+}
+
+static void nativeDestructor(JNIEnv* env, jobject javaObject) {
+    AStatsManager_unregisterPullAtomCallback(android::util::GRAPHICS_STATS);
+    env->DeleteGlobalRef(gGraphicsStatsServiceObject);
+    gGraphicsStatsServiceObject = nullptr;
+}
+
+static const JNINativeMethod sMethods[] =
+        {{"nGetAshmemSize", "()I", (void*)getAshmemSize},
+         {"nCreateDump", "(IZ)J", (void*)createDump},
+         {"nAddToDump", "(JLjava/lang/String;Ljava/lang/String;JJJ[B)V", (void*)addToDump},
+         {"nAddToDump", "(JLjava/lang/String;)V", (void*)addFileToDump},
+         {"nFinishDump", "(J)V", (void*)finishDump},
+         {"nFinishDumpInMemory", "(JJZ)V", (void*)finishDumpInMemory},
+         {"nSaveBuffer", "(Ljava/lang/String;Ljava/lang/String;JJJ[B)V", (void*)saveBuffer},
+         {"nativeInit", "()V", (void*)nativeInit},
+         {"nativeDestructor", "()V", (void*)nativeDestructor}};
+
+int register_android_graphics_GraphicsStatsService(JNIEnv* env) {
+    jclass graphicsStatsService_class =
+            FindClassOrDie(env, "android/graphics/GraphicsStatsService");
+    gGraphicsStatsService_pullGraphicsStatsMethodID =
+            GetMethodIDOrDie(env, graphicsStatsService_class, "pullGraphicsStats", "(ZJ)V");
+    return jniRegisterNativeMethods(env, "android/graphics/GraphicsStatsService", sMethods,
+                                    NELEM(sMethods));
+}
+
+} // namespace android